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1
News
2
====
3

    
4

    
5
Version 2.9.3
6
-------------
7

    
8
*(Released Mon, 27 Jan 2014)*
9

    
10
- Ensure that all the hypervisors exist in the config file (Issue 640)
11
- Correctly recognise the role as master node (Issue 687)
12
- configure: allow detection of Sphinx 1.2+ (Issue 502)
13
- gnt-instance now honors the KVM path correctly (Issue 691)
14

    
15
Inherited from the 2.8 branch:
16

    
17
- Change the list separator for the usb_devices parameter from comma to space.
18
  Commas could not work because they are already the hypervisor option
19
  separator (Issue 649)
20
- Add support for blktap2 file-driver (Issue 638)
21
- Add network tag definitions to the haskell codebase (Issue 641)
22
- Fix RAPI network tag handling
23
- Add the network tags to the tags searched by gnt-cluster search-tags
24
- Fix caching bug preventing jobs from being cancelled
25
- Start-master/stop-master was always failing if ConfD was disabled. (Issue 685)
26

    
27

    
28
Version 2.9.2
29
-------------
30

    
31
*(Released Fri, 13 Dec 2013)*
32

    
33
- use custom KVM path if set for version checking
34
- SingleNotifyPipeCondition: don't share pollers
35

    
36
Inherited from the 2.8 branch:
37

    
38
- Fixed Luxi daemon socket permissions after master-failover
39
- Improve IP version detection code directly checking for colons rather than
40
  passing the family from the cluster object
41
- Fix NODE/NODE_RES locking in LUInstanceCreate by not acquiring NODE_RES locks
42
  opportunistically anymore (Issue 622)
43
- Allow link local IPv6 gateways (Issue 624)
44
- Fix error printing (Issue 616)
45
- Fix a bug in InstanceSetParams concerning names: in case no name is passed in
46
  disk modifications, keep the old one. If name=none then set disk name to
47
  None.
48
- Update build_chroot script to work with the latest hackage packages
49
- Add a packet number limit to "fping" in master-ip-setup (Issue 630)
50
- Fix evacuation out of drained node (Issue 615)
51
- Add default file_driver if missing (Issue 571)
52
- Fix job error message after unclean master shutdown (Issue 618)
53
- Lock group(s) when creating instances (Issue 621)
54
- SetDiskID() before accepting an instance (Issue 633)
55
- Allow the ext template disks to receive arbitrary parameters, both at creation
56
  time and while being modified
57
- Xen handle domain shutdown (future proofing cherry-pick)
58
- Refactor reading live data in htools (future proofing cherry-pick)
59

    
60

    
61
Version 2.9.1
62
-------------
63

    
64
*(Released Wed, 13 Nov 2013)*
65

    
66
- fix bug, that kept nodes offline when readding
67
- when verifying DRBD versions, ignore unavailable nodes
68
- fix bug that made the console unavailable on kvm in split-user
69
  setup (issue 608)
70
- DRBD: ensure peers are UpToDate for dual-primary (inherited 2.8.2)
71

    
72

    
73
Version 2.9.0
74
-------------
75

    
76
*(Released Tue, 5 Nov 2013)*
77

    
78
Incompatible/important changes
79
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
80

    
81
- hroller now also plans for capacity to move non-redundant instances off
82
  any node to be rebooted; the old behavior of completely ignoring any
83
  non-redundant instances can be restored by adding the --ignore-non-redundant
84
  option.
85
- The cluster option '--no-lvm-storage' was removed in favor of the new option
86
  '--enabled-disk-templates'.
87
- On instance creation, disk templates no longer need to be specified
88
  with '-t'. The default disk template will be taken from the list of
89
  enabled disk templates.
90
- The monitoring daemon is now running as root, in order to be able to collect
91
  information only available to root (such as the state of Xen instances).
92
- The ConfD client is now IPv6 compatible.
93
- File and shared file storage is no longer dis/enabled at configure time,
94
  but using the option '--enabled-disk-templates' at cluster initialization and
95
  modification.
96
- The default directories for file and shared file storage are not anymore
97
  specified at configure time, but taken from the cluster's configuration.
98
  They can be set at cluster initialization and modification with
99
  '--file-storage-dir' and '--shared-file-storage-dir'.
100
- Cluster verification now includes stricter checks regarding the
101
  default file and shared file storage directories. It now checks that
102
  the directories are explicitely allowed in the 'file-storage-paths' file and
103
  that the directories exist on all nodes.
104
- The list of allowed disk templates in the instance policy and the list
105
  of cluster-wide enabled disk templates is now checked for consistency
106
  on cluster or group modification. On cluster initialization, the ipolicy
107
  disk templates are ensured to be a subset of the cluster-wide enabled
108
  disk templates.
109

    
110
New features
111
~~~~~~~~~~~~
112

    
113
- DRBD 8.4 support. Depending on the installed DRBD version, Ganeti now uses
114
  the correct command syntax. It is possible to use different DRBD versions
115
  on different nodes as long as they are compatible to each other. This
116
  enables rolling upgrades of DRBD with no downtime. As permanent operation
117
  of different DRBD versions within a node group is discouraged,
118
  ``gnt-cluster verify`` will emit a warning if it detects such a situation.
119
- New "inst-status-xen" data collector for the monitoring daemon, providing
120
  information about the state of the xen instances on the nodes.
121
- New "lv" data collector for the monitoring daemon, collecting data about the
122
  logical volumes on the nodes, and pairing them with the name of the instances
123
  they belong to.
124
- New "diskstats" data collector, collecting the data from /proc/diskstats and
125
  presenting them over the monitoring daemon interface.
126
- The ConfD client is now IPv6 compatible.
127

    
128
New dependencies
129
~~~~~~~~~~~~~~~~
130
The following new dependencies have been added.
131

    
132
Python
133

    
134
- ``python-mock`` (http://www.voidspace.org.uk/python/mock/) is now a required
135
  for the unit tests (and only used for testing).
136

    
137
Haskell
138

    
139
- ``hslogger`` (http://software.complete.org/hslogger) is now always
140
  required, even if confd is not enabled.
141

    
142
Since 2.9.0 rc3
143
~~~~~~~~~~~~~~~
144

    
145
- Correctly start/stop luxid during gnt-cluster master-failover (inherited
146
  from stable-2.8)
147
- Improved error messsages (inherited from stable-2.8)
148

    
149

    
150
Version 2.9.0 rc3
151
-----------------
152

    
153
*(Released Tue, 15 Oct 2013)*
154

    
155
The third release candidate in the 2.9 series. Since 2.9.0 rc2:
156

    
157
- in implicit configuration upgrade, match ipolicy with enabled disk templates
158
- improved harep documentation (inherited from stable-2.8)
159

    
160

    
161
Version 2.9.0 rc2
162
-----------------
163

    
164
*(Released Wed, 9 Oct 2013)*
165

    
166
The second release candidate in the 2.9 series. Since 2.9.0 rc1:
167

    
168
- Fix bug in cfgupgrade that led to failure when upgrading from 2.8 with
169
  at least one DRBD instance.
170
- Fix bug in cfgupgrade that led to an invalid 2.8 configuration after
171
  downgrading.
172

    
173

    
174
Version 2.9.0 rc1
175
-----------------
176

    
177
*(Released Tue, 1 Oct 2013)*
178

    
179
The first release candidate in the 2.9 series. Since 2.9.0 beta1:
180

    
181
- various bug fixes
182
- update of the documentation, in particular installation instructions
183
- merging of LD_* constants into DT_* constants
184
- python style changes to be compatible with newer versions of pylint
185

    
186

    
187
Version 2.9.0 beta1
188
-------------------
189

    
190
*(Released Thu, 29 Aug 2013)*
191

    
192
This was the first beta release of the 2.9 series. All important changes
193
are listed in the latest 2.9 entry.
194

    
195

    
196
Version 2.8.4
197
-------------
198

    
199
*(Released Thu, 23 Jan 2014)*
200

    
201
- Change the list separator for the usb_devices parameter from comma to space.
202
  Commas could not work because they are already the hypervisor option
203
  separator (Issue 649)
204
- Add support for blktap2 file-driver (Issue 638)
205
- Add network tag definitions to the haskell codebase (Issue 641)
206
- Fix RAPI network tag handling
207
- Add the network tags to the tags searched by gnt-cluster search-tags
208
- Fix caching bug preventing jobs from being cancelled
209
- Start-master/stop-master was always failing if ConfD was disabled. (Issue 685)
210

    
211

    
212
Version 2.8.3
213
-------------
214

    
215
*(Released Thu, 12 Dec 2013)*
216

    
217
- Fixed Luxi daemon socket permissions after master-failover
218
- Improve IP version detection code directly checking for colons rather than
219
  passing the family from the cluster object
220
- Fix NODE/NODE_RES locking in LUInstanceCreate by not acquiring NODE_RES locks
221
  opportunistically anymore (Issue 622)
222
- Allow link local IPv6 gateways (Issue 624)
223
- Fix error printing (Issue 616)
224
- Fix a bug in InstanceSetParams concerning names: in case no name is passed in
225
  disk modifications, keep the old one. If name=none then set disk name to
226
  None.
227
- Update build_chroot script to work with the latest hackage packages
228
- Add a packet number limit to "fping" in master-ip-setup (Issue 630)
229
- Fix evacuation out of drained node (Issue 615)
230
- Add default file_driver if missing (Issue 571)
231
- Fix job error message after unclean master shutdown (Issue 618)
232
- Lock group(s) when creating instances (Issue 621)
233
- SetDiskID() before accepting an instance (Issue 633)
234
- Allow the ext template disks to receive arbitrary parameters, both at creation
235
  time and while being modified
236
- Xen handle domain shutdown (future proofing cherry-pick)
237
- Refactor reading live data in htools (future proofing cherry-pick)
238

    
239

    
240
Version 2.8.2
241
-------------
242

    
243
*(Released Thu, 07 Nov 2013)*
244

    
245
- DRBD: ensure peers are UpToDate for dual-primary
246
- Improve error message for replace-disks
247
- More dependency checks at configure time
248
- Placate warnings on ganeti.outils_unittest.py
249

    
250

    
251
Version 2.8.1
252
-------------
253

    
254
*(Released Thu, 17 Oct 2013)*
255

    
256
- Correctly start/stop luxid during gnt-cluster master-failover
257
- Don't attempt IPv6 ssh in case of IPv4 cluster (Issue 595)
258
- Fix path for the job queue serial file
259
- Improved harep man page
260
- Minor documentation improvements
261

    
262

    
263
Version 2.8.0
264
-------------
265

    
266
*(Released Mon, 30 Sep 2013)*
267

    
268
Incompatible/important changes
269
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
270

    
271
- Instance policy can contain multiple instance specs, as described in
272
  the “Constrained instance sizes” section of :doc:`Partitioned Ganeti
273
  <design-partitioned>`. As a consequence, it's not possible to partially change
274
  or override instance specs. Bounding specs (min and max) can be specified as a
275
  whole using the new option ``--ipolicy-bounds-specs``, while standard
276
  specs use the new option ``--ipolicy-std-specs``.
277
- The output of the info command of gnt-cluster, gnt-group, gnt-node,
278
  gnt-instance is a valid YAML object.
279
- hail now honors network restrictions when allocating nodes. This led to an
280
  update of the IAllocator protocol. See the IAllocator documentation for
281
  details.
282
- confd now only answers static configuration request over the network. luxid
283
  was extracted, listens on the local LUXI socket and responds to live queries.
284
  This allows finer grained permissions if using separate users.
285

    
286
New features
287
~~~~~~~~~~~~
288

    
289
- The :doc:`Remote API <rapi>` daemon now supports a command line flag
290
  to always require authentication, ``--require-authentication``. It can
291
  be specified in ``$sysconfdir/default/ganeti``.
292
- A new cluster attribute 'enabled_disk_templates' is introduced. It will
293
  be used to manage the disk templates to be used by instances in the cluster.
294
  Initially, it will be set to a list that includes plain, drbd, if they were
295
  enabled by specifying a volume group name, and file and sharedfile, if those
296
  were enabled at configure time. Additionally, it will include all disk
297
  templates that are currently used by instances. The order of disk templates
298
  will be based on Ganeti's history of supporting them. In the future, the
299
  first entry of the list will be used as a default disk template on instance
300
  creation.
301
- ``cfgupgrade`` now supports a ``--downgrade`` option to bring the
302
  configuration back to the previous stable version.
303
- Disk templates in group ipolicy can be restored to the default value.
304
- Initial support for diskless instances and virtual clusters in QA.
305
- More QA and unit tests for instance policies.
306
- Every opcode now contains a reason trail (visible through ``gnt-job info``)
307
  describing why the opcode itself was executed.
308
- The monitoring daemon is now available. It allows users to query the cluster
309
  for obtaining information about the status of the system. The daemon is only
310
  responsible for providing the information over the network: the actual data
311
  gathering is performed by data collectors (currently, only the DRBD status
312
  collector is available).
313
- In order to help developers work on Ganeti, a new script
314
  (``devel/build_chroot``) is provided, for building a chroot that contains all
315
  the required development libraries and tools for compiling Ganeti on a Debian
316
  Squeeze system.
317
- A new tool, ``harep``, for performing self-repair and recreation of instances
318
  in Ganeti has been added.
319
- Split queries are enabled for tags, network, exports, cluster info, groups,
320
  jobs, nodes.
321
- New command ``show-ispecs-cmd`` for ``gnt-cluster`` and ``gnt-group``.
322
  It prints the command line to set the current policies, to ease
323
  changing them.
324
- Add the ``vnet_hdr`` HV parameter for KVM, to control whether the tap
325
  devices for KVM virtio-net interfaces will get created with VNET_HDR
326
  (IFF_VNET_HDR) support. If set to false, it disables offloading on the
327
  virtio-net interfaces, which prevents host kernel tainting and log
328
  flooding, when dealing with broken or malicious virtio-net drivers.
329
  It's set to true by default.
330
- Instance failover now supports a ``--cleanup`` parameter for fixing previous
331
  failures.
332
- Support 'viridian' parameter in Xen HVM
333
- Support DSA SSH keys in bootstrap
334
- To simplify the work of packaging frameworks that want to add the needed users
335
  and groups in a split-user setup themselves, at build time three files in
336
  ``doc/users`` will be generated. The ``groups`` files contains, one per line,
337
  the groups to be generated, the ``users`` file contains, one per line, the
338
  users to be generated, optionally followed by their primary group, where
339
  important. The ``groupmemberships`` file contains, one per line, additional
340
  user-group membership relations that need to be established. The syntax of
341
  these files will remain stable in all future versions.
342

    
343

    
344
New dependencies
345
~~~~~~~~~~~~~~~~
346
The following new dependencies have been added:
347

    
348
For Haskell:
349
- The ``curl`` library is not optional anymore for compiling the Haskell code.
350
- ``snap-server`` library (if monitoring is enabled).
351

    
352
For Python:
353
- The minimum Python version needed to run Ganeti is now 2.6.
354
- ``yaml`` library (only for running the QA).
355

    
356
Since 2.8.0 rc3
357
~~~~~~~~~~~~~~~
358
- Perform proper cleanup on termination of Haskell daemons
359
- Fix corner-case in handling of remaining retry time
360

    
361

    
362
Version 2.8.0 rc3
363
-----------------
364

    
365
*(Released Tue, 17 Sep 2013)*
366

    
367
- To simplify the work of packaging frameworks that want to add the needed users
368
  and groups in a split-user setup themselves, at build time three files in
369
  ``doc/users`` will be generated. The ``groups`` files contains, one per line,
370
  the groups to be generated, the ``users`` file contains, one per line, the
371
  users to be generated, optionally followed by their primary group, where
372
  important. The ``groupmemberships`` file contains, one per line, additional
373
  user-group membership relations that need to be established. The syntax of
374
  these files will remain stable in all future versions.
375
- Add a default to file-driver when unspecified over RAPI (Issue 571)
376
- Mark the DSA host pubkey as optional, and remove it during config downgrade
377
  (Issue 560)
378
- Some documentation fixes
379

    
380

    
381
Version 2.8.0 rc2
382
-----------------
383

    
384
*(Released Tue, 27 Aug 2013)*
385

    
386
The second release candidate of the 2.8 series. Since 2.8.0. rc1:
387

    
388
- Support 'viridian' parameter in Xen HVM (Issue 233)
389
- Include VCS version in ``gnt-cluster version``
390
- Support DSA SSH keys in bootstrap (Issue 338)
391
- Fix batch creation of instances
392
- Use FQDN to check master node status (Issue 551)
393
- Make the DRBD collector more failure-resilient
394

    
395

    
396
Version 2.8.0 rc1
397
-----------------
398

    
399
*(Released Fri, 2 Aug 2013)*
400

    
401
The first release candidate of the 2.8 series. Since 2.8.0 beta1:
402

    
403
- Fix upgrading/downgrading from 2.7
404
- Increase maximum RAPI message size
405
- Documentation updates
406
- Split ``confd`` between ``luxid`` and ``confd``
407
- Merge 2.7 series up to the 2.7.1 release
408
- Allow the ``modify_etc_hosts`` option to be changed
409
- Add better debugging for ``luxid`` queries
410
- Expose bulk parameter for GetJobs in RAPI client
411
- Expose missing ``network`` fields in RAPI
412
- Add some ``cluster verify`` tests
413
- Some unittest fixes
414
- Fix a malfunction in ``hspace``'s tiered allocation
415
- Fix query compatibility between haskell and python implementations
416
- Add the ``vnet_hdr`` HV parameter for KVM
417
- Add ``--cleanup`` to instance failover
418
- Change the connected groups format in ``gnt-network info`` output; it
419
  was previously displayed as a raw list by mistake. (Merged from 2.7)
420

    
421

    
422
Version 2.8.0 beta1
423
-------------------
424

    
425
*(Released Mon, 24 Jun 2013)*
426

    
427
This was the first beta release of the 2.8 series. All important changes
428
are listed in the latest 2.8 entry.
429

    
430

    
431
Version 2.7.2
432
-------------
433

    
434
*(Released Thu, 26 Sep 2013)*
435

    
436
- Change the connected groups format in ``gnt-network info`` output; it
437
  was previously displayed as a raw list by mistake
438
- Check disk template in right dict when copying
439
- Support multi-instance allocs without iallocator
440
- Fix some errors in the documentation
441
- Fix formatting of tuple in an error message
442

    
443

    
444
Version 2.7.1
445
-------------
446

    
447
*(Released Thu, 25 Jul 2013)*
448

    
449
- Add logrotate functionality in daemon-util
450
- Add logrotate example file
451
- Add missing fields to network queries over rapi
452
- Fix network object timestamps
453
- Add support for querying network timestamps
454
- Fix a typo in the example crontab
455
- Fix a documentation typo
456

    
457

    
458
Version 2.7.0
459
-------------
460

    
461
*(Released Thu, 04 Jul 2013)*
462

    
463
Incompatible/important changes
464
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
465

    
466
- Instance policies for disk size were documented to be on a per-disk
467
  basis, but hail applied them to the sum of all disks. This has been
468
  fixed.
469
- ``hbal`` will now exit with status 0 if, during job execution over
470
  LUXI, early exit has been requested and all jobs are successful;
471
  before, exit status 1 was used, which cannot be differentiated from
472
  "job error" case
473
- Compatibility with newer versions of rbd has been fixed
474
- ``gnt-instance batch-create`` has been changed to use the bulk create
475
  opcode from Ganeti. This lead to incompatible changes in the format of
476
  the JSON file. It's now not a custom dict anymore but a dict
477
  compatible with the ``OpInstanceCreate`` opcode.
478
- Parent directories for file storage need to be listed in
479
  ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
480
  write the file automatically based on old configuration values, but it
481
  can not distribute it across all nodes and the file contents should be
482
  verified. Use ``gnt-cluster copyfile
483
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
484
  upgraded. The reason for requiring this list of paths now is that
485
  before it would have been possible to inject new paths via RPC,
486
  allowing files to be created in arbitrary locations. The RPC protocol
487
  is protected using SSL/X.509 certificates, but as a design principle
488
  Ganeti does not permit arbitrary paths to be passed.
489
- The parsing of the variants file for OSes (see
490
  :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
491
  lines and comment lines (starting with ``#``) are ignored for better
492
  readability.
493
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
494
  longer available. ``gnt-node add`` now invokes a new tool on the
495
  destination node, named ``prepare-node-join``, to configure the SSH
496
  daemon. Paramiko is no longer necessary to configure nodes' SSH
497
  daemons via ``gnt-node add``.
498
- Draining (``gnt-cluster queue drain``) and un-draining the job queue
499
  (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
500
  the flag is not reset after a master failover.
501
- Python 2.4 has *not* been tested with this release. Using 2.6 or above
502
  is recommended. 2.6 will be mandatory from the 2.8 series.
503

    
504

    
505
New features
506
~~~~~~~~~~~~
507

    
508
- New network management functionality to support automatic allocation
509
  of IP addresses and managing of network parameters. See
510
  :manpage:`gnt-network(8)` for more details.
511
- New external storage backend, to allow managing arbitrary storage
512
  systems external to the cluster. See
513
  :manpage:`ganeti-extstorage-interface(7)`.
514
- New ``exclusive-storage`` node parameter added, restricted to
515
  nodegroup level. When it's set to true, physical disks are assigned in
516
  an exclusive fashion to instances, as documented in :doc:`Partitioned
517
  Ganeti <design-partitioned>`.  Currently, only instances using the
518
  ``plain`` disk template are supported.
519
- The KVM hypervisor has been updated with many new hypervisor
520
  parameters, including a generic one for passing arbitrary command line
521
  values. See a complete list in :manpage:`gnt-instance(8)`. It is now
522
  compatible up to qemu 1.4.
523
- A new tool, called ``mon-collector``, is the stand-alone executor of
524
  the data collectors for a monitoring system. As of this version, it
525
  just includes the DRBD data collector, that can be executed by calling
526
  ``mon-collector`` using the ``drbd`` parameter. See
527
  :manpage:`mon-collector(7)`.
528
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
529
  for RAPI users. It allows granting permissions to query for
530
  information to a specific user without giving
531
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
532
- A new tool named ``node-cleanup`` has been added. It cleans remains of
533
  a cluster from a machine by stopping all daemons, removing
534
  certificates and ssconf files. Unless the ``--no-backup`` option is
535
  given, copies of the certificates are made.
536
- Instance creations now support the use of opportunistic locking,
537
  potentially speeding up the (parallel) creation of multiple instances.
538
  This feature is currently only available via the :doc:`RAPI
539
  <rapi>` interface and when an instance allocator is used. If the
540
  ``opportunistic_locking`` parameter is set the opcode will try to
541
  acquire as many locks as possible, but will not wait for any locks
542
  held by other opcodes. If not enough resources can be found to
543
  allocate the instance, the temporary error code
544
  :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
545
  retried thereafter, with or without opportunistic locking.
546
- New experimental linux-ha resource scripts.
547
- Restricted-commands support: ganeti can now be asked (via command line
548
  or rapi) to perform commands on a node. These are passed via ganeti
549
  RPC rather than ssh. This functionality is restricted to commands
550
  specified on the ``$sysconfdir/ganeti/restricted-commands`` for security
551
  reasons. The file is not copied automatically.
552

    
553

    
554
Misc changes
555
~~~~~~~~~~~~
556

    
557
- Diskless instances are now externally mirrored (Issue 237). This for
558
  now has only been tested in conjunction with explicit target nodes for
559
  migration/failover.
560
- Queries not needing locks or RPC access to the node can now be
561
  performed by the confd daemon, making them independent from jobs, and
562
  thus faster to execute. This is selectable at configure time.
563
- The functionality for allocating multiple instances at once has been
564
  overhauled and is now also available through :doc:`RAPI <rapi>`.
565

    
566
There are no significant changes from version 2.7.0~rc3.
567

    
568

    
569
Version 2.7.0 rc3
570
-----------------
571

    
572
*(Released Tue, 25 Jun 2013)*
573

    
574
- Fix permissions on the confd query socket (Issue 477)
575
- Fix permissions on the job archive dir (Issue 498)
576
- Fix handling of an internal exception in replace-disks (Issue 472)
577
- Fix gnt-node info handling of shortened names (Issue 497)
578
- Fix gnt-instance grow-disk when wiping is enabled
579
- Documentation improvements, and support for newer pandoc
580
- Fix hspace honoring ipolicy for disks (Issue 484)
581
- Improve handling of the ``kvm_extra`` HV parameter
582

    
583

    
584
Version 2.7.0 rc2
585
-----------------
586

    
587
*(Released Fri, 24 May 2013)*
588

    
589
- ``devel/upload`` now works when ``/var/run`` on the target nodes is a
590
  symlink.
591
- Disks added through ``gnt-instance modify`` or created through
592
  ``gnt-instance recreate-disks`` are wiped, if the
593
  ``prealloc_wipe_disks`` flag is set.
594
- If wiping newly created disks fails, the disks are removed. Also,
595
  partial failures in creating disks through ``gnt-instance modify``
596
  triggers a cleanup of the partially-created disks.
597
- Removing the master IP address doesn't fail if the address has been
598
  already removed.
599
- Fix ownership of the OS log dir
600
- Workaround missing SO_PEERCRED constant (Issue 191)
601

    
602

    
603
Version 2.7.0 rc1
604
-----------------
605

    
606
*(Released Fri, 3 May 2013)*
607

    
608
This was the first release candidate of the 2.7 series. Since beta3:
609

    
610
- Fix kvm compatibility with qemu 1.4 (Issue 389)
611
- Documentation updates (admin guide, upgrade notes, install
612
  instructions) (Issue 372)
613
- Fix gnt-group list nodes and instances count (Issue 436)
614
- Fix compilation without non-mandatory libraries (Issue 441)
615
- Fix xen-hvm hypervisor forcing nics to type 'ioemu' (Issue 247)
616
- Make confd logging more verbose at INFO level (Issue 435)
617
- Improve "networks" documentation in :manpage:`gnt-instance(8)`
618
- Fix failure path for instance storage type conversion (Issue 229)
619
- Update htools text backend documentation
620
- Improve the renew-crypto section of :manpage:`gnt-cluster(8)`
621
- Disable inter-cluster instance move for file-based instances, because
622
  it is dependant on instance export, which is not supported for
623
  file-based instances. (Issue 414)
624
- Fix gnt-job crashes on non-ascii characters (Issue 427)
625
- Fix volume group checks on non-vm-capable nodes (Issue 432)
626

    
627

    
628
Version 2.7.0 beta3
629
-------------------
630

    
631
*(Released Mon, 22 Apr 2013)*
632

    
633
This was the third beta release of the 2.7 series. Since beta2:
634

    
635
- Fix hail to verify disk instance policies on a per-disk basis (Issue 418).
636
- Fix data loss on wrong usage of ``gnt-instance move``
637
- Properly export errors in confd-based job queries
638
- Add ``users-setup`` tool
639
- Fix iallocator protocol to report 0 as a disk size for diskless
640
  instances. This avoids hail breaking when a diskless instance is
641
  present.
642
- Fix job queue directory permission problem that made confd job queries
643
  fail. This requires running an ``ensure-dirs --full-run`` on upgrade
644
  for access to archived jobs (Issue 406).
645
- Limit the sizes of networks supported by ``gnt-network`` to something
646
  between a ``/16`` and a ``/30`` to prevent memory bloat and crashes.
647
- Fix bugs in instance disk template conversion
648
- Fix GHC 7 compatibility
649
- Fix ``burnin`` install path (Issue 426).
650
- Allow very small disk grows (Issue 347).
651
- Fix a ``ganeti-noded`` memory bloat introduced in 2.5, by making sure
652
  that noded doesn't import masterd code (Issue 419).
653
- Make sure the default metavg at cluster init is the same as the vg, if
654
  unspecified (Issue 358).
655
- Fix cleanup of partially created disks (part of Issue 416)
656

    
657

    
658
Version 2.7.0 beta2
659
-------------------
660

    
661
*(Released Tue, 2 Apr 2013)*
662

    
663
This was the second beta release of the 2.7 series. Since beta1:
664

    
665
- Networks no longer have a "type" slot, since this information was
666
  unused in Ganeti: instead of it tags should be used.
667
- The rapi client now has a ``target_node`` option to MigrateInstance.
668
- Fix early exit return code for hbal (Issue 386).
669
- Fix ``gnt-instance migrate/failover -n`` (Issue 396).
670
- Fix ``rbd showmapped`` output parsing (Issue 312).
671
- Networks are now referenced indexed by UUID, rather than name. This
672
  will require running cfgupgrade, from 2.7.0beta1, if networks are in
673
  use.
674
- The OS environment now includes network information.
675
- Deleting of a network is now disallowed if any instance nic is using
676
  it, to prevent dangling references.
677
- External storage is now documented in man pages.
678
- The exclusive_storage flag can now only be set at nodegroup level.
679
- Hbal can now submit an explicit priority with its jobs.
680
- Many network related locking fixes.
681
- Bump up the required pylint version to 0.25.1.
682
- Fix the ``no_remember`` option in RAPI client.
683
- Many ipolicy related tests, qa, and fixes.
684
- Many documentation improvements and fixes.
685
- Fix building with ``--disable-file-storage``.
686
- Fix ``-q`` option in htools, which was broken if passed more than
687
  once.
688
- Some haskell/python interaction improvements and fixes.
689
- Fix iallocator in case of missing LVM storage.
690
- Fix confd config load in case of ``--no-lvm-storage``.
691
- The confd/query functionality is now mentioned in the security
692
  documentation.
693

    
694

    
695
Version 2.7.0 beta1
696
-------------------
697

    
698
*(Released Wed, 6 Feb 2013)*
699

    
700
This was the first beta release of the 2.7 series. All important changes
701
are listed in the latest 2.7 entry.
702

    
703

    
704
Version 2.6.2
705
-------------
706

    
707
*(Released Fri, 21 Dec 2012)*
708

    
709
Important behaviour change: hbal won't rebalance anymore instances which
710
have the ``auto_balance`` attribute set to false. This was the intention
711
all along, but until now it only skipped those from the N+1 memory
712
reservation (DRBD-specific).
713

    
714
A significant number of bug fixes in this release:
715

    
716
- Fixed disk adoption interaction with ipolicy checks.
717
- Fixed networking issues when instances are started, stopped or
718
  migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
719
- Fixed the warning in cluster verify for shared storage instances not
720
  being redundant.
721
- Fixed removal of storage directory on shared file storage (issue 262).
722
- Fixed validation of LVM volume group name in OpClusterSetParams
723
  (``gnt-cluster modify``) (issue 285).
724
- Fixed runtime memory increases (``gnt-instance modify -m``).
725
- Fixed live migration under Xen's ``xl`` mode.
726
- Fixed ``gnt-instance console`` with ``xl``.
727
- Fixed building with newer Haskell compiler/libraries.
728
- Fixed PID file writing in Haskell daemons (confd); this prevents
729
  restart issues if confd was launched manually (outside of
730
  ``daemon-util``) while another copy of it was running
731
- Fixed a type error when doing live migrations with KVM (issue 297) and
732
  the error messages for failing migrations have been improved.
733
- Fixed opcode validation for the out-of-band commands (``gnt-node
734
  power``).
735
- Fixed a type error when unsetting OS hypervisor parameters (issue
736
  311); now it's possible to unset all OS-specific hypervisor
737
  parameters.
738
- Fixed the ``dry-run`` mode for many operations: verification of
739
  results was over-zealous but didn't take into account the ``dry-run``
740
  operation, resulting in "wrong" failures.
741
- Fixed bash completion in ``gnt-job list`` when the job queue has
742
  hundreds of entries; especially with older ``bash`` versions, this
743
  results in significant CPU usage.
744

    
745
And lastly, a few other improvements have been made:
746

    
747
- Added option to force master-failover without voting (issue 282).
748
- Clarified error message on lock conflict (issue 287).
749
- Logging of newly submitted jobs has been improved (issue 290).
750
- Hostname checks have been made uniform between instance rename and
751
  create (issue 291).
752
- The ``--submit`` option is now supported by ``gnt-debug delay``.
753
- Shutting down the master daemon by sending SIGTERM now stops it from
754
  processing jobs waiting for locks; instead, those jobs will be started
755
  once again after the master daemon is started the next time (issue
756
  296).
757
- Support for Xen's ``xl`` program has been improved (besides the fixes
758
  above).
759
- Reduced logging noise in the Haskell confd daemon (only show one log
760
  entry for each config reload, instead of two).
761
- Several man page updates and typo fixes.
762

    
763

    
764
Version 2.6.1
765
-------------
766

    
767
*(Released Fri, 12 Oct 2012)*
768

    
769
A small bugfix release. Among the bugs fixed:
770

    
771
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
772
  made the command unusable.
773
- Commands that issue many jobs don't fail anymore just because some jobs
774
  take so long that other jobs are archived.
775
- Failures during ``gnt-instance reinstall`` are reflected by the exit
776
  status.
777
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
778
  DRBD is enabled.
779
- When ``always_failover`` is set, ``--allow-failover`` is not required
780
  in migrate commands anymore.
781
- ``bash_completion`` works even if extglob is disabled.
782
- Fixed bug with locks that made failover for RDB-based instances fail.
783
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
784
  a random node instead of one based on the allocator metric.
785
- Support for newer versions of pylint and pep8.
786
- Hail doesn't fail anymore when trying to add an instance of type
787
  ``file``, ``sharedfile`` or ``rbd``.
788
- Added new Makefile target to rebuild the whole distribution, so that
789
  all files are included.
790

    
791

    
792
Version 2.6.0
793
-------------
794

    
795
*(Released Fri, 27 Jul 2012)*
796

    
797

    
798
.. attention:: The ``LUXI`` protocol has been made more consistent
799
   regarding its handling of command arguments. This, however, leads to
800
   incompatibility issues with previous versions. Please ensure that you
801
   restart Ganeti daemons soon after the upgrade, otherwise most
802
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
803
   pausing/resuming the watcher, cancelling and archiving jobs, querying
804
   the cluster configuration) will fail.
805

    
806

    
807
New features
808
~~~~~~~~~~~~
809

    
810
Instance run status
811
+++++++++++++++++++
812

    
813
The current ``admin_up`` field, which used to denote whether an instance
814
should be running or not, has been removed. Instead, ``admin_state`` is
815
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
816

    
817
The rational behind this is that an instance being “down” can have
818
different meanings:
819

    
820
- it could be down during a reboot
821
- it could be temporarily be down for a reinstall
822
- or it could be down because it is deprecated and kept just for its
823
  disk
824

    
825
The previous Boolean state was making it difficult to do capacity
826
calculations: should Ganeti reserve memory for a down instance? Now, the
827
tri-state field makes it clear:
828

    
829
- in ``up`` and ``down`` state, all resources are reserved for the
830
  instance, and it can be at any time brought up if it is down
831
- in ``offline`` state, only disk space is reserved for it, but not
832
  memory or CPUs
833

    
834
The field can have an extra use: since the transition between ``up`` and
835
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
836
transition between ``offline`` and ``down`` is done via ``gnt-instance
837
modify``, it is possible to given different rights to users. For
838
example, owners of an instance could be allowed to start/stop it, but
839
not transition it out of the offline state.
840

    
841
Instance policies and specs
842
+++++++++++++++++++++++++++
843

    
844
In previous Ganeti versions, an instance creation request was not
845
limited on the minimum size and on the maximum size just by the cluster
846
resources. As such, any policy could be implemented only in third-party
847
clients (RAPI clients, or shell wrappers over ``gnt-*``
848
tools). Furthermore, calculating cluster capacity via ``hspace`` again
849
required external input with regards to instance sizes.
850

    
851
In order to improve these workflows and to allow for example better
852
per-node group differentiation, we introduced instance specs, which
853
allow declaring:
854

    
855
- minimum instance disk size, disk count, memory size, cpu count
856
- maximum values for the above metrics
857
- and “standard” values (used in ``hspace`` to calculate the standard
858
  sized instances)
859

    
860
The minimum/maximum values can be also customised at node-group level,
861
for example allowing more powerful hardware to support bigger instance
862
memory sizes.
863

    
864
Beside the instance specs, there are a few other settings belonging to
865
the instance policy framework. It is possible now to customise, per
866
cluster and node-group:
867

    
868
- the list of allowed disk templates
869
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
870
- the maximum ratio of instance to spindles (see below for more
871
  information) for local storage
872

    
873
All these together should allow all tools that talk to Ganeti to know
874
what are the ranges of allowed values for instances and the
875
over-subscription that is allowed.
876

    
877
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
878
instance configuration, and the physical CPU configuration from the
879
node. For the spindle ratios however, we didn't track before these
880
values, so new parameters have been added:
881

    
882
- a new node parameter ``spindle_count``, defaults to 1, customisable at
883
  node group or node level
884
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
885

    
886
Note that spindles in this context doesn't need to mean actual
887
mechanical hard-drives; it's just a relative number for both the node
888
I/O capacity and instance I/O consumption.
889

    
890
Instance migration behaviour
891
++++++++++++++++++++++++++++
892

    
893
While live-migration is in general desirable over failover, it is
894
possible that for some workloads it is actually worse, due to the
895
variable time of the “suspend” phase during live migration.
896

    
897
To allow the tools to work consistently over such instances (without
898
having to hard-code instance names), a new backend parameter
899
``always_failover`` has been added to control the migration/failover
900
behaviour. When set to True, all migration requests for an instance will
901
instead fall-back to failover.
902

    
903
Instance memory ballooning
904
++++++++++++++++++++++++++
905

    
906
Initial support for memory ballooning has been added. The memory for an
907
instance is no longer fixed (backend parameter ``memory``), but instead
908
can vary between minimum and maximum values (backend parameters
909
``minmem`` and ``maxmem``). Currently we only change an instance's
910
memory when:
911

    
912
- live migrating or failing over and instance and the target node
913
  doesn't have enough memory
914
- user requests changing the memory via ``gnt-instance modify
915
  --runtime-memory``
916

    
917
Instance CPU pinning
918
++++++++++++++++++++
919

    
920
In order to control the use of specific CPUs by instance, support for
921
controlling CPU pinning has been added for the Xen, HVM and LXC
922
hypervisors. This is controlled by a new hypervisor parameter
923
``cpu_mask``; details about possible values for this are in the
924
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
925
VCPU-to-CPU mapping) form will work well only when all nodes in your
926
cluster have the same amount of CPUs.
927

    
928
Disk parameters
929
+++++++++++++++
930

    
931
Another area in which Ganeti was not customisable were the parameters
932
used for storage configuration, e.g. how many stripes to use for LVM,
933
DRBD resync configuration, etc.
934

    
935
To improve this area, we've added disks parameters, which are
936
customisable at cluster and node group level, and which allow to
937
specify various parameters for disks (DRBD has the most parameters
938
currently), for example:
939

    
940
- DRBD resync algorithm and parameters (e.g. speed)
941
- the default VG for meta-data volumes for DRBD
942
- number of stripes for LVM (plain disk template)
943
- the RBD pool
944

    
945
These parameters can be modified via ``gnt-cluster modify -D …`` and
946
``gnt-group modify -D …``, and are used at either instance creation (in
947
case of LVM stripes, for example) or at disk “activation” time
948
(e.g. resync speed).
949

    
950
Rados block device support
951
++++++++++++++++++++++++++
952

    
953
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
954
denoted by the ``rbd`` disk template type. This is considered
955
experimental, feedback is welcome. For details on configuring it, see
956
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
957

    
958
Master IP setup
959
+++++++++++++++
960

    
961
The existing master IP functionality works well only in simple setups (a
962
single network shared by all nodes); however, if nodes belong to
963
different networks, then the ``/32`` setup and lack of routing
964
information is not enough.
965

    
966
To allow the master IP to function well in more complex cases, the
967
system was reworked as follows:
968

    
969
- a master IP netmask setting has been added
970
- the master IP activation/turn-down code was moved from the node daemon
971
  to a separate script
972
- whether to run the Ganeti-supplied master IP script or a user-supplied
973
  on is a ``gnt-cluster init`` setting
974

    
975
Details about the location of the standard and custom setup scripts are
976
in the man page :manpage:`gnt-cluster(8)`; for information about the
977
setup script protocol, look at the Ganeti-supplied script.
978

    
979
SPICE support
980
+++++++++++++
981

    
982
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
983
improved.
984

    
985
It is now possible to use TLS-protected connections, and when renewing
986
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
987
it is now possible to specify spice or spice CA certificates. Also, it
988
is possible to configure a password for SPICE sessions via the
989
hypervisor parameter ``spice_password_file``.
990

    
991
There are also new parameters to control the compression and streaming
992
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
993
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
994
for the spice parameters.
995

    
996
Lastly, it is now possible to see the SPICE connection information via
997
``gnt-instance console``.
998

    
999
OVF converter
1000
+++++++++++++
1001

    
1002
A new tool (``tools/ovfconverter``) has been added that supports
1003
conversion between Ganeti and the `Open Virtualization Format
1004
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
1005
from).
1006

    
1007
This relies on the ``qemu-img`` tool to convert the disk formats, so the
1008
actual compatibility with other virtualization solutions depends on it.
1009

    
1010
Confd daemon changes
1011
++++++++++++++++++++
1012

    
1013
The configuration query daemon (``ganeti-confd``) is now optional, and
1014
has been rewritten in Haskell; whether to use the daemon at all, use the
1015
Python (default) or the Haskell version is selectable at configure time
1016
via the ``--enable-confd`` parameter, which can take one of the
1017
``haskell``, ``python`` or ``no`` values. If not used, disabling the
1018
daemon will result in a smaller footprint; for larger systems, we
1019
welcome feedback on the Haskell version which might become the default
1020
in future versions.
1021

    
1022
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
1023
daemon running. The Python version doesn't implement the new call.
1024

    
1025

    
1026
User interface changes
1027
~~~~~~~~~~~~~~~~~~~~~~
1028

    
1029
We have replaced the ``--disks`` option of ``gnt-instance
1030
replace-disks`` with a more flexible ``--disk`` option, which allows
1031
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
1032
disk size and mode can be changed upon recreation (via ``gnt-instance
1033
recreate-disks``, which accepts the same ``--disk`` option).
1034

    
1035
As many people are used to a ``show`` command, we have added that as an
1036
alias to ``info`` on all ``gnt-*`` commands.
1037

    
1038
The ``gnt-instance grow-disk`` command has a new mode in which it can
1039
accept the target size of the disk, instead of the delta; this can be
1040
more safe since two runs in absolute mode will be idempotent, and
1041
sometimes it's also easier to specify the desired size directly.
1042

    
1043
Also the handling of instances with regard to offline secondaries has
1044
been improved. Instance operations should not fail because one of it's
1045
secondary nodes is offline, even though it's safe to proceed.
1046

    
1047
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
1048
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
1049
minors to instance name.
1050

    
1051
API changes
1052
~~~~~~~~~~~
1053

    
1054
RAPI coverage has improved, with (for example) new resources for
1055
recreate-disks, node power-cycle, etc.
1056

    
1057
Compatibility
1058
~~~~~~~~~~~~~
1059

    
1060
There is partial support for ``xl`` in the Xen hypervisor; feedback is
1061
welcome.
1062

    
1063
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
1064
whether to still support Python 2.4 or move to Python 2.6 as minimum
1065
required version.
1066

    
1067
Support for Fedora has been slightly improved; the provided example
1068
init.d script should work better on it and the INSTALL file should
1069
document the needed dependencies.
1070

    
1071
Internal changes
1072
~~~~~~~~~~~~~~~~
1073

    
1074
The deprecated ``QueryLocks`` LUXI request has been removed. Use
1075
``Query(what=QR_LOCK, ...)`` instead.
1076

    
1077
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
1078
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
1079
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
1080
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
1081
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
1082

    
1083
RAPI client: ``CertificateError`` now derives from
1084
``GanetiApiError``. This should make it more easy to handle Ganeti
1085
errors.
1086

    
1087
Deprecation warnings due to PyCrypto/paramiko import in
1088
``tools/setup-ssh`` have been silenced, as usually they are safe; please
1089
make sure to run an up-to-date paramiko version, if you use this tool.
1090

    
1091
The QA scripts now depend on Python 2.5 or above (the main code base
1092
still works with Python 2.4).
1093

    
1094
The configuration file (``config.data``) is now written without
1095
indentation for performance reasons; if you want to edit it, it can be
1096
re-formatted via ``tools/fmtjson``.
1097

    
1098
A number of bugs has been fixed in the cluster merge tool.
1099

    
1100
``x509`` certification verification (used in import-export) has been
1101
changed to allow the same clock skew as permitted by the cluster
1102
verification. This will remove some rare but hard to diagnose errors in
1103
import-export.
1104

    
1105

    
1106
Version 2.6.0 rc4
1107
-----------------
1108

    
1109
*(Released Thu, 19 Jul 2012)*
1110

    
1111
Very few changes from rc4 to the final release, only bugfixes:
1112

    
1113
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
1114
  instance, fix CDROM booting for KVM instances)
1115
- fixed node group modification of node parameters
1116
- fixed issue in LUClusterVerifyGroup with multi-group clusters
1117
- fixed generation of bash completion to ensure a stable ordering
1118
- fixed a few typos
1119

    
1120

    
1121
Version 2.6.0 rc3
1122
-----------------
1123

    
1124
*(Released Fri, 13 Jul 2012)*
1125

    
1126
Third release candidate for 2.6. The following changes were done from
1127
rc3 to rc4:
1128

    
1129
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
1130
- Fixed an inconsistency in the LUXI protocol with the provided
1131
  arguments (NOT backwards compatible)
1132
- Fixed a bug with node groups ipolicy where ``min`` was greater than
1133
  the cluster ``std`` value
1134
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
1135
  easier instance debugging on nodes (requires ``hconfd`` to work)
1136

    
1137

    
1138
Version 2.6.0 rc2
1139
-----------------
1140

    
1141
*(Released Tue, 03 Jul 2012)*
1142

    
1143
Second release candidate for 2.6. The following changes were done from
1144
rc2 to rc3:
1145

    
1146
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
1147
  master candidates
1148
- Fixed a RAPI regression on missing beparams/memory
1149
- Fixed redistribution of files on offline nodes
1150
- Added possibility to run activate-disks even though secondaries are
1151
  offline. With this change it relaxes also the strictness on some other
1152
  commands which use activate disks internally:
1153
  * ``gnt-instance start|reboot|rename|backup|export``
1154
- Made it possible to remove safely an instance if its secondaries are
1155
  offline
1156
- Made it possible to reinstall even though secondaries are offline
1157

    
1158

    
1159
Version 2.6.0 rc1
1160
-----------------
1161

    
1162
*(Released Mon, 25 Jun 2012)*
1163

    
1164
First release candidate for 2.6. The following changes were done from
1165
rc1 to rc2:
1166

    
1167
- Fixed bugs with disk parameters and ``rbd`` templates as well as
1168
  ``instance_os_add``
1169
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
1170
  behaviour. It supports now the modify operation
1171
- ``hcheck`` implemented to analyze cluster health and possibility of
1172
  improving health by rebalance
1173
- ``hbal`` has been improved in dealing with split instances
1174

    
1175

    
1176
Version 2.6.0 beta2
1177
-------------------
1178

    
1179
*(Released Mon, 11 Jun 2012)*
1180

    
1181
Second beta release of 2.6. The following changes were done from beta2
1182
to rc1:
1183

    
1184
- Fixed ``daemon-util`` with non-root user models
1185
- Fixed creation of plain instances with ``--no-wait-for-sync``
1186
- Fix wrong iv_names when running ``cfgupgrade``
1187
- Export more information in RAPI group queries
1188
- Fixed bug when changing instance network interfaces
1189
- Extended burnin to do NIC changes
1190
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
1191
- Changed default for DRBD barriers
1192
- Fixed DRBD error reporting for syncer rate
1193
- Verify the options on disk parameters
1194

    
1195
And of course various fixes to documentation and improved unittests and
1196
QA.
1197

    
1198

    
1199
Version 2.6.0 beta1
1200
-------------------
1201

    
1202
*(Released Wed, 23 May 2012)*
1203

    
1204
First beta release of 2.6. The following changes were done from beta1 to
1205
beta2:
1206

    
1207
- integrated patch for distributions without ``start-stop-daemon``
1208
- adapted example init.d script to work on Fedora
1209
- fixed log handling in Haskell daemons
1210
- adapted checks in the watcher for pycurl linked against libnss
1211
- add partial support for ``xl`` instead of ``xm`` for Xen
1212
- fixed a type issue in cluster verification
1213
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
1214
  clusters)
1215

    
1216
Plus integrated fixes from the 2.5 branch:
1217

    
1218
- fixed ``kvm-ifup`` to use ``/bin/bash``
1219
- fixed parallel build failures
1220
- KVM live migration when using a custom keymap
1221

    
1222

    
1223
Version 2.5.2
1224
-------------
1225

    
1226
*(Released Tue, 24 Jul 2012)*
1227

    
1228
A small bugfix release, with no new features:
1229

    
1230
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
1231
  different default shell (e.g. Debian, Ubuntu)
1232
- fixed KVM startup and live migration with a custom keymap (fixes Issue
1233
  243 and Debian bug #650664)
1234
- fixed compatibility with KVM versions that don't support multiple boot
1235
  devices (fixes Issue 230 and Debian bug #624256)
1236

    
1237
Additionally, a few fixes were done to the build system (fixed parallel
1238
build failures) and to the unittests (fixed race condition in test for
1239
FileID functions, and the default enable/disable mode for QA test is now
1240
customisable).
1241

    
1242

    
1243
Version 2.5.1
1244
-------------
1245

    
1246
*(Released Fri, 11 May 2012)*
1247

    
1248
A small bugfix release.
1249

    
1250
The main issues solved are on the topic of compatibility with newer LVM
1251
releases:
1252

    
1253
- fixed parsing of ``lv_attr`` field
1254
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
1255
  the ``--force`` flag is needed
1256

    
1257
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
1258
to accept kernel 3.x too (was hardcoded to 2.6.*).
1259

    
1260
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
1261
of hook results and that also made display of other errors suboptimal
1262
was fixed; the code behaves now like 2.4 and earlier.
1263

    
1264
Another change in 2.5, the cleanup of the OS scripts environment, is too
1265
aggressive: it removed even the ``PATH`` variable, which requires the OS
1266
scripts to *always* need to export it. Since this is a bit too strict,
1267
we now export a minimal PATH, the same that we export for hooks.
1268

    
1269
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
1270
integrated into this release.
1271

    
1272
Finally, a few other miscellaneous changes were done (no new features,
1273
just small improvements):
1274

    
1275
- Fix ``gnt-group --help`` display
1276
- Fix hardcoded Xen kernel path
1277
- Fix grow-disk handling of invalid units
1278
- Update synopsis for ``gnt-cluster repair-disk-sizes``
1279
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
1280

    
1281

    
1282
Version 2.5.0
1283
-------------
1284

    
1285
*(Released Thu, 12 Apr 2012)*
1286

    
1287
Incompatible/important changes and bugfixes
1288
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1289

    
1290
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
1291
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
1292
  to match the underlying LUXI interface.
1293
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
1294
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
1295
  not maintain backwards-compatibility as the underlying operation
1296
  changed in an incompatible way. The RAPI client can talk to old
1297
  servers, but it needs to be told so as the return value changed.
1298
- When creating file-based instances via RAPI, the ``file_driver``
1299
  parameter no longer defaults to ``loop`` and must be specified.
1300
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
1301
  ``link`` instead.
1302
- Support for the undocumented and deprecated RAPI instance creation
1303
  request format version 0 has been dropped. Use version 1, supported
1304
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
1305
- Pyparsing 1.4.6 or above is required, see :doc:`installation
1306
  documentation <install>`.
1307
- The "cluster-verify" hooks are now executed per group by the
1308
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
1309
  if you just run ``gnt-cluster verify``, which generates one opcode per
1310
  group.
1311
- The environment as passed to the OS scripts is cleared, and thus no
1312
  environment variables defined in the node daemon's environment will be
1313
  inherited by the scripts.
1314
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
1315
  deprecated.
1316
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
1317
  support operations involving multiple node groups.
1318
- Offline nodes are ignored when failing over an instance.
1319
- Support for KVM version 1.0, which changed the version reporting format
1320
  from 3 to 2 digits.
1321
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
1322
  removal.
1323
- ``Makefile`` is now compatible with Automake 1.11.2
1324
- Includes all bugfixes made in the 2.4 series
1325

    
1326
New features
1327
~~~~~~~~~~~~
1328

    
1329
- The ganeti-htools project has been merged into the ganeti-core source
1330
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
1331
- Implemented support for :doc:`shared storage <design-shared-storage>`.
1332
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
1333
  GPT-style partition tables (requires `parted
1334
  <http://www.gnu.org/s/parted/>`_).
1335
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
1336
- Allowed adding tags on instance creation.
1337
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
1338
- Allow instances to be started in a paused state, enabling the user to
1339
  see the complete console output on boot using the console.
1340
- Added new hypervisor flag to control default reboot behaviour
1341
  (``reboot_behavior``).
1342
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
1343
- Improved out-of-band management support:
1344

    
1345
  - Added ``gnt-node health`` command reporting the health status of
1346
    nodes.
1347
  - Added ``gnt-node power`` command to manage power status of nodes.
1348
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
1349

    
1350
- Instance migration can fall back to failover if instance is not
1351
  running.
1352
- Filters can be used when listing nodes, instances, groups and locks;
1353
  see :manpage:`ganeti(7)` manpage.
1354
- Added post-execution status as variables to :doc:`hooks <hooks>`
1355
  environment.
1356
- Instance tags are exported/imported together with the instance.
1357
- When given an explicit job ID, ``gnt-job info`` will work for archived
1358
  jobs.
1359
- Jobs can define dependencies on other jobs (not yet supported via
1360
  RAPI or command line, but used by internal commands and usable via
1361
  LUXI).
1362

    
1363
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
1364
    dependencies.
1365

    
1366
- Instance failover is now available as a RAPI resource
1367
  (``/2/instances/[instance_name]/failover``).
1368
- ``gnt-instance info`` defaults to static information if primary node
1369
  is offline.
1370
- Opcodes have a new ``comment`` attribute.
1371
- Added basic SPICE support to KVM hypervisor.
1372
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
1373

    
1374
Node group improvements
1375
~~~~~~~~~~~~~~~~~~~~~~~
1376

    
1377
- ``gnt-cluster verify`` has been modified to check groups separately,
1378
  thereby improving performance.
1379
- Node group support has been added to ``gnt-cluster verify-disks``,
1380
  which now operates per node group.
1381
- Watcher has been changed to work better with node groups.
1382

    
1383
  - One process and state file per node group.
1384
  - Slow watcher in one group doesn't block other group's watcher.
1385

    
1386
- Added new command, ``gnt-group evacuate``, to move all instances in a
1387
  node group to other groups.
1388
- Added ``gnt-instance change-group`` to move an instance to another
1389
  node group.
1390
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
1391
  per-group operations.
1392
- Node groups can be tagged.
1393
- Some operations switch from an exclusive to a shared lock as soon as
1394
  possible.
1395
- Instance's primary and secondary nodes' groups are now available as
1396
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
1397
  and ``snodes.group.uuid``).
1398

    
1399
Misc
1400
~~~~
1401

    
1402
- Numerous updates to documentation and manpages.
1403

    
1404
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
1405
    descriptions.
1406
  - Some opcode/job results are now also documented, see :doc:`RAPI
1407
    <rapi>`.
1408

    
1409
- A lockset's internal lock is now also visible in lock monitor.
1410
- Log messages from job queue workers now contain information about the
1411
  opcode they're processing.
1412
- ``gnt-instance console`` no longer requires the instance lock.
1413
- A short delay when waiting for job changes reduces the number of LUXI
1414
  requests significantly.
1415
- DRBD metadata volumes are overwritten with zeros during disk creation.
1416
- Out-of-band commands no longer acquire the cluster lock in exclusive
1417
  mode.
1418
- ``devel/upload`` now uses correct permissions for directories.
1419

    
1420

    
1421
Version 2.5.0 rc6
1422
-----------------
1423

    
1424
*(Released Fri, 23 Mar 2012)*
1425

    
1426
This was the sixth release candidate of the 2.5 series.
1427

    
1428

    
1429
Version 2.5.0 rc5
1430
-----------------
1431

    
1432
*(Released Mon, 9 Jan 2012)*
1433

    
1434
This was the fifth release candidate of the 2.5 series.
1435

    
1436

    
1437
Version 2.5.0 rc4
1438
-----------------
1439

    
1440
*(Released Thu, 27 Oct 2011)*
1441

    
1442
This was the fourth release candidate of the 2.5 series.
1443

    
1444

    
1445
Version 2.5.0 rc3
1446
-----------------
1447

    
1448
*(Released Wed, 26 Oct 2011)*
1449

    
1450
This was the third release candidate of the 2.5 series.
1451

    
1452

    
1453
Version 2.5.0 rc2
1454
-----------------
1455

    
1456
*(Released Tue, 18 Oct 2011)*
1457

    
1458
This was the second release candidate of the 2.5 series.
1459

    
1460

    
1461
Version 2.5.0 rc1
1462
-----------------
1463

    
1464
*(Released Tue, 4 Oct 2011)*
1465

    
1466
This was the first release candidate of the 2.5 series.
1467

    
1468

    
1469
Version 2.5.0 beta3
1470
-------------------
1471

    
1472
*(Released Wed, 31 Aug 2011)*
1473

    
1474
This was the third beta release of the 2.5 series.
1475

    
1476

    
1477
Version 2.5.0 beta2
1478
-------------------
1479

    
1480
*(Released Mon, 22 Aug 2011)*
1481

    
1482
This was the second beta release of the 2.5 series.
1483

    
1484

    
1485
Version 2.5.0 beta1
1486
-------------------
1487

    
1488
*(Released Fri, 12 Aug 2011)*
1489

    
1490
This was the first beta release of the 2.5 series.
1491

    
1492

    
1493
Version 2.4.5
1494
-------------
1495

    
1496
*(Released Thu, 27 Oct 2011)*
1497

    
1498
- Fixed bug when parsing command line parameter values ending in
1499
  backslash
1500
- Fixed assertion error after unclean master shutdown
1501
- Disable HTTP client pool for RPC, significantly reducing memory usage
1502
  of master daemon
1503
- Fixed queue archive creation with wrong permissions
1504

    
1505

    
1506
Version 2.4.4
1507
-------------
1508

    
1509
*(Released Tue, 23 Aug 2011)*
1510

    
1511
Small bug-fixes:
1512

    
1513
- Fixed documentation for importing with ``--src-dir`` option
1514
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
1515
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
1516

    
1517

    
1518
Version 2.4.3
1519
-------------
1520

    
1521
*(Released Fri, 5 Aug 2011)*
1522

    
1523
Many bug-fixes and a few small features:
1524

    
1525
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
1526
  issues when you tried to add an instance with two MAC addresses in one
1527
  request
1528
- KVM: fixed per-instance stored UID value
1529
- KVM: configure bridged NICs at migration start
1530
- KVM: Fix a bug where instance will not start with never KVM versions
1531
  (>= 0.14)
1532
- Added OS search path to ``gnt-cluster info``
1533
- Fixed an issue with ``file_storage_dir`` where you were forced to
1534
  provide an absolute path, but the documentation states it is a
1535
  relative path, the documentation was right
1536
- Added a new parameter to instance stop/start called ``--no-remember``
1537
  that will make the state change to not be remembered
1538
- Implemented ``no_remember`` at RAPI level
1539
- Improved the documentation
1540
- Node evacuation: don't call IAllocator if node is already empty
1541
- Fixed bug in DRBD8 replace disks on current nodes
1542
- Fixed bug in recreate-disks for DRBD instances
1543
- Moved assertion checking locks in ``gnt-instance replace-disks``
1544
  causing it to abort with not owning the right locks for some situation
1545
- Job queue: Fixed potential race condition when cancelling queued jobs
1546
- Fixed off-by-one bug in job serial generation
1547
- ``gnt-node volumes``: Fix instance names
1548
- Fixed aliases in bash completion
1549
- Fixed a bug in reopening log files after being sent a SIGHUP
1550
- Added a flag to burnin to allow specifying VCPU count
1551
- Bugfixes to non-root Ganeti configuration
1552

    
1553

    
1554
Version 2.4.2
1555
-------------
1556

    
1557
*(Released Thu, 12 May 2011)*
1558

    
1559
Many bug-fixes and a few new small features:
1560

    
1561
- Fixed a bug related to log opening failures
1562
- Fixed a bug in instance listing with orphan instances
1563
- Fixed a bug which prevented resetting the cluster-level node parameter
1564
  ``oob_program`` to the default
1565
- Many fixes related to the ``cluster-merge`` tool
1566
- Fixed a race condition in the lock monitor, which caused failures
1567
  during (at least) creation of many instances in parallel
1568
- Improved output for gnt-job info
1569
- Removed the quiet flag on some ssh calls which prevented debugging
1570
  failures
1571
- Improved the N+1 failure messages in cluster verify by actually
1572
  showing the memory values (needed and available)
1573
- Increased lock attempt timeouts so that when executing long operations
1574
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
1575
  too early and thus prevent the use of the 'fair' mechanism
1576
- Changed instance query data (``gnt-instance info``) to not acquire
1577
  locks unless needed, thus allowing its use on locked instance if only
1578
  static information is asked for
1579
- Improved behaviour with filesystems that do not support rename on an
1580
  opened file
1581
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
1582
  kept locks on all nodes during the wipe, which is unneeded
1583
- Fixed ``gnt-watcher`` handling of errors during hooks execution
1584
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
1585
  10GiB) which caused the wipe to fail right at the end in some cases
1586
- Fixed master IP activation when doing master failover with no-voting
1587
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
1588
  the master node itself
1589
- Fixed potential data-loss in under disk full conditions, where Ganeti
1590
  wouldn't check correctly the return code and would consider
1591
  partially-written files 'correct'
1592
- Fixed bug related to multiple VGs and DRBD disk replacing
1593
- Added new disk parameter ``metavg`` that allows placement of the meta
1594
  device for DRBD in a different volume group
1595
- Fixed error handling in the node daemon when the system libc doesn't
1596
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
1597
- Fixed lock release during replace-disks, which kept cluster-wide locks
1598
  when doing disk replaces with an iallocator script
1599
- Added check for missing bridges in cluster verify
1600
- Handle EPIPE errors while writing to the terminal better, so that
1601
  piping the output to e.g. ``less`` doesn't cause a backtrace
1602
- Fixed rare case where a ^C during Luxi calls could have been
1603
  interpreted as server errors, instead of simply terminating
1604
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
1605
  assign-nodes``)
1606
- Added a few more parameters to the KVM hypervisor, allowing a second
1607
  CDROM, custom disk type for CDROMs and a floppy image
1608
- Removed redundant message in instance rename when the name is given
1609
  already as a FQDN
1610
- Added option to ``gnt-instance recreate-disks`` to allow creating the
1611
  disks on new nodes, allowing recreation when the original instance
1612
  nodes are completely gone
1613
- Added option when converting disk templates to DRBD to skip waiting
1614
  for the resync, in order to make the instance available sooner
1615
- Added two new variables to the OS scripts environment (containing the
1616
  instance's nodes)
1617
- Made the root_path and optional parameter for the xen-pvm hypervisor,
1618
  to allow use of ``pvgrub`` as bootloader
1619
- Changed the instance memory modifications to only check out-of-memory
1620
  conditions on memory increases, and turned the secondary node warnings
1621
  into errors (they can still be overridden via ``--force``)
1622
- Fixed the handling of a corner case when the Python installation gets
1623
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
1624
  to execute a command that doesn't exist
1625
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
1626
  node of the instance returned failures during instance shutdown; this
1627
  adds the option ``--ignore-consistency`` to gnt-instance move
1628

    
1629
And as usual, various improvements to the error messages, documentation
1630
and man pages.
1631

    
1632

    
1633
Version 2.4.1
1634
-------------
1635

    
1636
*(Released Wed, 09 Mar 2011)*
1637

    
1638
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
1639
the RAPI users file if run twice (even with ``--dry-run``).
1640

    
1641
The release fixes that bug (nothing else changed).
1642

    
1643

    
1644
Version 2.4.0
1645
-------------
1646

    
1647
*(Released Mon, 07 Mar 2011)*
1648

    
1649
Final 2.4.0 release. Just a few small fixes:
1650

    
1651
- Fixed RAPI node evacuate
1652
- Fixed the kvm-ifup script
1653
- Fixed internal error handling for special job cases
1654
- Updated man page to specify the escaping feature for options
1655

    
1656

    
1657
Version 2.4.0 rc3
1658
-----------------
1659

    
1660
*(Released Mon, 28 Feb 2011)*
1661

    
1662
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1663
that this feature wiped the disks of the wrong instance, leading to loss
1664
of data.
1665

    
1666
Other changes:
1667

    
1668
- Fixed title of query field containing instance name
1669
- Expanded the glossary in the documentation
1670
- Fixed one unittest (internal issue)
1671

    
1672

    
1673
Version 2.4.0 rc2
1674
-----------------
1675

    
1676
*(Released Mon, 21 Feb 2011)*
1677

    
1678
A number of bug fixes plus just a couple functionality changes.
1679

    
1680
On the user-visible side, the ``gnt-* list`` command output has changed
1681
with respect to "special" field states. The current rc1 style of display
1682
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1683
the default output mode special fields states are displayed as follows:
1684

    
1685
- Offline resource: ``*``
1686
- Unavailable/not applicable: ``-``
1687
- Data missing (RPC failure): ``?``
1688
- Unknown field: ``??``
1689

    
1690
Another user-visible change is the addition of ``--force-join`` to
1691
``gnt-node add``.
1692

    
1693
As for bug fixes:
1694

    
1695
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
1696
- Fixed regression in RAPI/instance reinstall where all parameters were
1697
  required (instead of optional)
1698
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1699
- Fixed iallocator usage (offline nodes were not considered offline)
1700
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1701
- Fixed hypervisor and OS parameter validation with respect to
1702
  non-vm_capable nodes
1703
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1704
  cosmetic)
1705
- Fixed ``tools/listrunner`` with respect to agent-based usage
1706

    
1707

    
1708
Version 2.4.0 rc1
1709
-----------------
1710

    
1711
*(Released Fri,  4 Feb 2011)*
1712

    
1713
Many changes and fixes since the beta1 release. While there were some
1714
internal changes, the code has been mostly stabilised for the RC
1715
release.
1716

    
1717
Note: the dumb allocator was removed in this release, as it was not kept
1718
up-to-date with the IAllocator protocol changes. It is recommended to
1719
use the ``hail`` command from the ganeti-htools package.
1720

    
1721
Note: the 2.4 and up versions of Ganeti are not compatible with the
1722
0.2.x branch of ganeti-htools. You need to upgrade to
1723
ganeti-htools-0.3.0 (or later).
1724

    
1725
Regressions fixed from 2.3
1726
~~~~~~~~~~~~~~~~~~~~~~~~~~
1727

    
1728
- Fixed the ``gnt-cluster verify-disks`` command
1729
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1730
  serially on nodes)
1731
- Fixed disk adoption breakage
1732
- Fixed wrong headers in instance listing for field aliases
1733

    
1734
Other bugs fixed
1735
~~~~~~~~~~~~~~~~
1736

    
1737
- Fixed corner case in KVM handling of NICs
1738
- Fixed many cases of wrong handling of non-vm_capable nodes
1739
- Fixed a bug where a missing instance symlink was not possible to
1740
  recreate with any ``gnt-*`` command (now ``gnt-instance
1741
  activate-disks`` does it)
1742
- Fixed the volume group name as reported by ``gnt-cluster
1743
  verify-disks``
1744
- Increased timeouts for the import-export code, hopefully leading to
1745
  fewer aborts due network or instance timeouts
1746
- Fixed bug in ``gnt-node list-storage``
1747
- Fixed bug where not all daemons were started on cluster
1748
  initialisation, but only at the first watcher run
1749
- Fixed many bugs in the OOB implementation
1750
- Fixed watcher behaviour in presence of instances with offline
1751
  secondaries
1752
- Fixed instance list output for instances running on the wrong node
1753
- a few fixes to the cluster-merge tool, but it still cannot merge
1754
  multi-node groups (currently it is not recommended to use this tool)
1755

    
1756

    
1757
Improvements
1758
~~~~~~~~~~~~
1759

    
1760
- Improved network configuration for the KVM hypervisor
1761
- Added e1000 as a supported NIC for Xen-HVM
1762
- Improved the lvmstrap tool to also be able to use partitions, as
1763
  opposed to full disks
1764
- Improved speed of disk wiping (the cluster parameter
1765
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1766
  of instance creations
1767
- Added documentation for the OS parameters
1768
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1769
  hypervisor is not responding
1770
- Added display of blacklisted and hidden OS information in
1771
  ``gnt-cluster info``
1772
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1773
  NIC and node parameters, which might create problems with currently
1774
  invalid (but undetected) configuration files, but prevents validation
1775
  failures when unrelated parameters are modified
1776
- Changed cluster initialisation to wait for the master daemon to become
1777
  available
1778
- Expanded the RAPI interface:
1779

    
1780
  - Added config redistribution resource
1781
  - Added activation/deactivation of instance disks
1782
  - Added export of console information
1783

    
1784
- Implemented log file reopening on SIGHUP, which allows using
1785
  logrotate(8) for the Ganeti log files
1786
- Added a basic OOB helper script as an example
1787

    
1788

    
1789
Version 2.4.0 beta1
1790
-------------------
1791

    
1792
*(Released Fri, 14 Jan 2011)*
1793

    
1794
User-visible
1795
~~~~~~~~~~~~
1796

    
1797
- Fixed timezone issues when formatting timestamps
1798
- Added support for node groups, available via ``gnt-group`` and other
1799
  commands
1800
- Added out-of-band framework and management, see :doc:`design
1801
  document <design-oob>`
1802
- Removed support for roman numbers from ``gnt-node list`` and
1803
  ``gnt-instance list``.
1804
- Allowed modification of master network interface via ``gnt-cluster
1805
  modify --master-netdev``
1806
- Accept offline secondaries while shutting down instance disks
1807
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1808
- Added support for multiple LVM volume groups
1809
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1810
  requested
1811
- Added commands to list available fields:
1812

    
1813
  - ``gnt-node list-fields``
1814
  - ``gnt-group list-fields``
1815
  - ``gnt-instance list-fields``
1816

    
1817
- Updated documentation and man pages
1818

    
1819
Integration
1820
~~~~~~~~~~~
1821

    
1822
- Moved ``rapi_users`` file into separate directory, now named
1823
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1824
  symlink
1825
- Added new tool for running commands on many machines,
1826
  ``tools/ganeti-listrunner``
1827
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1828
  improving the ``gnt-instance console`` output
1829
- Allowed customisation of disk index separator at ``configure`` time
1830
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1831
- Added support for non-partitioned md disks in ``lvmstrap``
1832
- Added script to gracefully power off KVM instances
1833
- Split ``utils`` module into smaller parts
1834
- Changed query operations to return more detailed information, e.g.
1835
  whether an information is unavailable due to an offline node. To use
1836
  this new functionality, the LUXI call ``Query`` must be used. Field
1837
  information is now stored by the master daemon and can be retrieved
1838
  using ``QueryFields``. Instances, nodes and groups can also be queried
1839
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1840
  exposed via RAPI). The following commands make use of this
1841
  infrastructure change:
1842

    
1843
  - ``gnt-group list``
1844
  - ``gnt-group list-fields``
1845
  - ``gnt-node list``
1846
  - ``gnt-node list-fields``
1847
  - ``gnt-instance list``
1848
  - ``gnt-instance list-fields``
1849
  - ``gnt-debug locks``
1850

    
1851
Remote API
1852
~~~~~~~~~~
1853

    
1854
- New RAPI resources (see :doc:`rapi`):
1855

    
1856
  - ``/2/modify``
1857
  - ``/2/groups``
1858
  - ``/2/groups/[group_name]``
1859
  - ``/2/groups/[group_name]/assign-nodes``
1860
  - ``/2/groups/[group_name]/modify``
1861
  - ``/2/groups/[group_name]/rename``
1862
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1863

    
1864
- RAPI changes:
1865

    
1866
  - Implemented ``no_install`` for instance creation
1867
  - Implemented OS parameters for instance reinstallation, allowing
1868
    use of special settings on reinstallation (e.g. for preserving data)
1869

    
1870
Misc
1871
~~~~
1872

    
1873
- Added IPv6 support in import/export
1874
- Pause DRBD synchronization while wiping disks on instance creation
1875
- Updated unittests and QA scripts
1876
- Improved network parameters passed to KVM
1877
- Converted man pages from docbook to reStructuredText
1878

    
1879

    
1880
Version 2.3.1
1881
-------------
1882

    
1883
*(Released Mon, 20 Dec 2010)*
1884

    
1885
Released version 2.3.1~rc1 without any changes.
1886

    
1887

    
1888
Version 2.3.1 rc1
1889
-----------------
1890

    
1891
*(Released Wed, 1 Dec 2010)*
1892

    
1893
- impexpd: Disable OpenSSL compression in socat if possible (backport
1894
  from master, commit e90739d625b, see :doc:`installation guide
1895
  <install-quick>` for details)
1896
- Changed unittest coverage report to exclude test scripts
1897
- Added script to check version format
1898

    
1899

    
1900
Version 2.3.0
1901
-------------
1902

    
1903
*(Released Wed, 1 Dec 2010)*
1904

    
1905
Released version 2.3.0~rc1 without any changes.
1906

    
1907

    
1908
Version 2.3.0 rc1
1909
-----------------
1910

    
1911
*(Released Fri, 19 Nov 2010)*
1912

    
1913
A number of bugfixes and documentation updates:
1914

    
1915
- Update ganeti-os-interface documentation
1916
- Fixed a bug related to duplicate MACs or similar items which should be
1917
  unique
1918
- Fix breakage in OS state modify
1919
- Reinstall instance: disallow offline secondaries (fixes bug related to
1920
  OS changing but reinstall failing)
1921
- plus all the other fixes between 2.2.1 and 2.2.2
1922

    
1923

    
1924
Version 2.3.0 rc0
1925
-----------------
1926

    
1927
*(Released Tue, 2 Nov 2010)*
1928

    
1929
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1930
- Fixed master failover race with watcher
1931
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1932
  configuration
1933
- Accept previously stopped instance for export with instance removal
1934
- Simplify and extend the environment variables for instance OS scripts
1935
- Added new node flags, ``master_capable`` and ``vm_capable``
1936
- Added optional instance disk wiping prior during allocation. This is a
1937
  cluster-wide option and can be set/modified using
1938
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1939
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1940
  :doc:`install-quick`
1941
- Added a new watcher option (``--ignore-pause``)
1942
- Added option to ignore offline node on instance start/stop
1943
  (``--ignore-offline``)
1944
- Allow overriding OS parameters with ``gnt-instance reinstall``
1945
- Added ability to change node's secondary IP address using ``gnt-node
1946
  modify``
1947
- Implemented privilege separation for all daemons except
1948
  ``ganeti-noded``, see ``configure`` options
1949
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1950
  verify``
1951
- Implemented job priorities (see ``ganeti(7)`` manpage)
1952
- Ignore failures while shutting down instances during failover from
1953
  offline node
1954
- Exit daemon's bootstrap process only once daemon is ready
1955
- Export more information via ``LUInstanceQuery``/remote API
1956
- Improved documentation, QA and unittests
1957
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1958
  restart if the file was created or changed
1959
- Added LUXI protocol version sent with each request and response,
1960
  allowing detection of server/client mismatches
1961
- Moved the Python scripts among gnt-* and ganeti-* into modules
1962
- Moved all code related to setting up SSH to an external script,
1963
  ``setup-ssh``
1964
- Infrastructure changes for node group support in future versions
1965

    
1966

    
1967
Version 2.2.2
1968
-------------
1969

    
1970
*(Released Fri, 19 Nov 2010)*
1971

    
1972
A few small bugs fixed, and some improvements to the build system:
1973

    
1974
- Fix documentation regarding conversion to drbd
1975
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1976
  -B``)
1977
- Fix error handling in node modify with multiple changes
1978
- Allow remote imports without checked names
1979

    
1980

    
1981
Version 2.2.1
1982
-------------
1983

    
1984
*(Released Tue, 19 Oct 2010)*
1985

    
1986
- Disable SSL session ID cache in RPC client
1987

    
1988

    
1989
Version 2.2.1 rc1
1990
-----------------
1991

    
1992
*(Released Thu, 14 Oct 2010)*
1993

    
1994
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1995
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1996
  with GnuTLS
1997
- Fix problems with interaction between Curl and Python's HTTP server,
1998
  resulting in increased speed in many RPC calls
1999
- Improve our release script to prevent breakage with older aclocal and
2000
  Python 2.6
2001

    
2002

    
2003
Version 2.2.1 rc0
2004
-----------------
2005

    
2006
*(Released Thu, 7 Oct 2010)*
2007

    
2008
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
2009
  value retrieved from master
2010
- Added support for blacklisted or hidden OS definitions
2011
- Added simple lock monitor (accessible via (``gnt-debug locks``)
2012
- Added support for -mem-path in KVM hypervisor abstraction layer
2013
- Allow overriding instance parameters in tool for inter-cluster
2014
  instance moves (``tools/move-instance``)
2015
- Improved opcode summaries (e.g. in ``gnt-job list``)
2016
- Improve consistency of OS listing by sorting it
2017
- Documentation updates
2018

    
2019

    
2020
Version 2.2.0.1
2021
---------------
2022

    
2023
*(Released Fri, 8 Oct 2010)*
2024

    
2025
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
2026

    
2027

    
2028
Version 2.2.0
2029
-------------
2030

    
2031
*(Released Mon, 4 Oct 2010)*
2032

    
2033
- Fixed regression in ``gnt-instance rename``
2034

    
2035

    
2036
Version 2.2.0 rc2
2037
-----------------
2038

    
2039
*(Released Wed, 22 Sep 2010)*
2040

    
2041
- Fixed OS_VARIANT variable for OS scripts
2042
- Fixed cluster tag operations via RAPI
2043
- Made ``setup-ssh`` exit with non-zero code if an error occurred
2044
- Disabled RAPI CA checks in watcher
2045

    
2046

    
2047
Version 2.2.0 rc1
2048
-----------------
2049

    
2050
*(Released Mon, 23 Aug 2010)*
2051

    
2052
- Support DRBD versions of the format "a.b.c.d"
2053
- Updated manpages
2054
- Re-introduce support for usage from multiple threads in RAPI client
2055
- Instance renames and modify via RAPI
2056
- Work around race condition between processing and archival in job
2057
  queue
2058
- Mark opcodes following failed one as failed, too
2059
- Job field ``lock_status`` was removed due to difficulties making it
2060
  work with the changed job queue in Ganeti 2.2; a better way to monitor
2061
  locks is expected for a later 2.2.x release
2062
- Fixed dry-run behaviour with many commands
2063
- Support ``ssh-agent`` again when adding nodes
2064
- Many additional bugfixes
2065

    
2066

    
2067
Version 2.2.0 rc0
2068
-----------------
2069

    
2070
*(Released Fri, 30 Jul 2010)*
2071

    
2072
Important change: the internal RPC mechanism between Ganeti nodes has
2073
changed from using a home-grown http library (based on the Python base
2074
libraries) to use the PycURL library. This requires that PycURL is
2075
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
2076
against GnuTLS by default. cURL's support for GnuTLS had known issues
2077
before cURL 7.21.0 and we recommend using the latest cURL release or
2078
linking against OpenSSL. Most other distributions already link PycURL
2079
and cURL against OpenSSL. The command::
2080

    
2081
  python -c 'import pycurl; print pycurl.version'
2082

    
2083
can be used to determine the libraries PycURL and cURL are linked
2084
against.
2085

    
2086
Other significant changes:
2087

    
2088
- Rewrote much of the internals of the job queue, in order to achieve
2089
  better parallelism; this decouples job query operations from the job
2090
  processing, and it should allow much nicer behaviour of the master
2091
  daemon under load, and it also has uncovered some long-standing bugs
2092
  related to the job serialisation (now fixed)
2093
- Added a default iallocator setting to the cluster parameters,
2094
  eliminating the need to always pass nodes or an iallocator for
2095
  operations that require selection of new node(s)
2096
- Added experimental support for the LXC virtualization method
2097
- Added support for OS parameters, which allows the installation of
2098
  instances to pass parameter to OS scripts in order to customise the
2099
  instance
2100
- Added a hypervisor parameter controlling the migration type (live or
2101
  non-live), since hypervisors have various levels of reliability; this
2102
  has renamed the 'live' parameter to 'mode'
2103
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
2104
  logical volumes, meaning that cluster verify will ignore them and not
2105
  flag their presence as errors
2106
- The watcher will now reset the error count for failed instances after
2107
  8 hours, thus allowing self-healing if the problem that caused the
2108
  instances to be down/fail to start has cleared in the meantime
2109
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
2110
  check for, and warn, if the drbd module parameter ``usermode_helper``
2111
  is not consistent with the cluster-wide setting; this is needed to
2112
  make diagnose easier of failed drbd creations
2113
- Started adding base IPv6 support, but this is not yet
2114
  enabled/available for use
2115
- Rename operations (cluster, instance) will now return the new name,
2116
  which is especially useful if a short name was passed in
2117
- Added support for instance migration in RAPI
2118
- Added a tool to pre-configure nodes for the SSH setup, before joining
2119
  them to the cluster; this will allow in the future a simplified model
2120
  for node joining (but not yet fully enabled in 2.2); this needs the
2121
  paramiko python library
2122
- Fixed handling of name-resolving errors
2123
- Fixed consistency of job results on the error path
2124
- Fixed master-failover race condition when executed multiple times in
2125
  sequence
2126
- Fixed many bugs related to the job queue (mostly introduced during the
2127
  2.2 development cycle, so not all are impacting 2.1)
2128
- Fixed instance migration with missing disk symlinks
2129
- Fixed handling of unknown jobs in ``gnt-job archive``
2130
- And many other small fixes/improvements
2131

    
2132
Internal changes:
2133

    
2134
- Enhanced both the unittest and the QA coverage
2135
- Switched the opcode validation to a generic model, and extended the
2136
  validation to all opcode parameters
2137
- Changed more parts of the code that write shell scripts to use the
2138
  same class for this
2139
- Switched the master daemon to use the asyncore library for the Luxi
2140
  server endpoint
2141

    
2142

    
2143
Version 2.2.0 beta0
2144
-------------------
2145

    
2146
*(Released Thu, 17 Jun 2010)*
2147

    
2148
- Added tool (``move-instance``) and infrastructure to move instances
2149
  between separate clusters (see :doc:`separate documentation
2150
  <move-instance>` and :doc:`design document <design-2.2>`)
2151
- Added per-request RPC timeout
2152
- RAPI now requires a Content-Type header for requests with a body (e.g.
2153
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
2154
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
2155
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
2156
  reachable
2157
- Implemented initial support for running Ganeti daemons as separate
2158
  users, see configure-time flags ``--with-user-prefix`` and
2159
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
2160
  time)
2161
- Instances can be removed after export (``gnt-backup export
2162
  --remove-instance``)
2163
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
2164
  key (instead of 1024 bit)
2165
- Added new cluster configuration file for cluster domain secret
2166
- Import/export now use SSL instead of SSH
2167
- Added support for showing estimated time when exporting an instance,
2168
  see the ``ganeti-os-interface(7)`` manpage and look for
2169
  ``EXP_SIZE_FD``
2170

    
2171

    
2172
Version 2.1.8
2173
-------------
2174

    
2175
*(Released Tue, 16 Nov 2010)*
2176

    
2177
Some more bugfixes. Unless critical bugs occur, this will be the last
2178
2.1 release:
2179

    
2180
- Fix case of MAC special-values
2181
- Fix mac checker regex
2182
- backend: Fix typo causing "out of range" error
2183
- Add missing --units in gnt-instance list man page
2184

    
2185

    
2186
Version 2.1.7
2187
-------------
2188

    
2189
*(Released Tue, 24 Aug 2010)*
2190

    
2191
Bugfixes only:
2192
  - Don't ignore secondary node silently on non-mirrored disk templates
2193
    (issue 113)
2194
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
2195
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
2196
  - Properly document the usb_mouse parameter
2197
  - Fix path in ganeti-rapi(8) (issue 116)
2198
  - Adjust error message when the ganeti user's .ssh directory is
2199
    missing
2200
  - Add same-node-check when changing the disk template to drbd
2201

    
2202

    
2203
Version 2.1.6
2204
-------------
2205

    
2206
*(Released Fri, 16 Jul 2010)*
2207

    
2208
Bugfixes only:
2209
  - Add an option to only select some reboot types during qa/burnin.
2210
    (on some hypervisors consequent reboots are not supported)
2211
  - Fix infrequent race condition in master failover. Sometimes the old
2212
    master ip address would be still detected as up for a short time
2213
    after it was removed, causing failover to fail.
2214
  - Decrease mlockall warnings when the ctypes module is missing. On
2215
    Python 2.4 we support running even if no ctypes module is installed,
2216
    but we were too verbose about this issue.
2217
  - Fix building on old distributions, on which man doesn't have a
2218
    --warnings option.
2219
  - Fix RAPI not to ignore the MAC address on instance creation
2220
  - Implement the old instance creation format in the RAPI client.
2221

    
2222

    
2223
Version 2.1.5
2224
-------------
2225

    
2226
*(Released Thu, 01 Jul 2010)*
2227

    
2228
A small bugfix release:
2229
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
2230
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
2231
    a non-existing option
2232
  - Fix instance create: the --force-variant option was ignored
2233
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
2234
  - Fix modify node storage with non-FQDN arguments
2235
  - Fix RAPI client to authenticate under Python 2.6 when used
2236
    for more than 5 requests needing authentication
2237
  - Fix gnt-instance modify -t (storage) giving a wrong error message
2238
    when converting a non-shutdown drbd instance to plain
2239

    
2240

    
2241
Version 2.1.4
2242
-------------
2243

    
2244
*(Released Fri, 18 Jun 2010)*
2245

    
2246
A small bugfix release:
2247

    
2248
  - Fix live migration of KVM instances started with older Ganeti
2249
    versions which had fewer hypervisor parameters
2250
  - Fix gnt-instance grow-disk on down instances
2251
  - Fix an error-reporting bug during instance migration
2252
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
2253
    silently ignoring broken ones
2254
  - Fix an RPC error reporting bug affecting, for example, RAPI client
2255
    users
2256
  - Fix bug triggered by different API version os-es on different nodes
2257
  - Fix a bug in instance startup with custom hvparams: OS level
2258
    parameters would fail to be applied.
2259
  - Fix the RAPI client under Python 2.6 (but more work is needed to
2260
    make it work completely well with OpenSSL)
2261
  - Fix handling of errors when resolving names from DNS
2262

    
2263

    
2264
Version 2.1.3
2265
-------------
2266

    
2267
*(Released Thu, 3 Jun 2010)*
2268

    
2269
A medium sized development cycle. Some new features, and some
2270
fixes/small improvements/cleanups.
2271

    
2272
Significant features
2273
~~~~~~~~~~~~~~~~~~~~
2274

    
2275
The node deamon now tries to mlock itself into memory, unless the
2276
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
2277
its logs, and falls back to console logging. This allows emergency
2278
features such as ``gnt-node powercycle`` to work even in the event of a
2279
broken node disk (tested offlining the disk hosting the node's
2280
filesystem and dropping its memory caches; don't try this at home)
2281

    
2282
KVM: add vhost-net acceleration support. It can be tested with a new
2283
enough version of the kernel and of qemu-kvm.
2284

    
2285
KVM: Add instance chrooting feature. If you use privilege dropping for
2286
your VMs you can also now force them to chroot to an empty directory,
2287
before starting the emulated guest.
2288

    
2289
KVM: Add maximum migration bandwith and maximum downtime tweaking
2290
support (requires a new-enough version of qemu-kvm).
2291

    
2292
Cluster verify will now warn if the master node doesn't have the master
2293
ip configured on it.
2294

    
2295
Add a new (incompatible) instance creation request format to RAPI which
2296
supports all parameters (previously only a subset was supported, and it
2297
wasn't possible to extend the old format to accomodate all the new
2298
features. The old format is still supported, and a client can check for
2299
this feature, before using it, by checking for its presence in the
2300
``features`` RAPI resource.
2301

    
2302
Now with ancient latin support. Try it passing the ``--roman`` option to
2303
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
2304
(requires the python-roman module to be installed, in order to work).
2305

    
2306
Other changes
2307
~~~~~~~~~~~~~
2308

    
2309
As usual many internal code refactorings, documentation updates, and
2310
such. Among others:
2311

    
2312
  - Lots of improvements and cleanups to the experimental Remote API
2313
    (RAPI) client library.
2314
  - A new unit test suite for the core daemon libraries.
2315
  - A fix to creating missing directories makes sure the umask is not
2316
    applied anymore. This enforces the same directory permissions
2317
    everywhere.
2318
  - Better handling terminating daemons with ctrl+c (used when running
2319
    them in debugging mode).
2320
  - Fix a race condition in live migrating a KVM instance, when stat()
2321
    on the old proc status file returned EINVAL, which is an unexpected
2322
    value.
2323
  - Fixed manpage checking with newer man and utf-8 charachters. But now
2324
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
2325

    
2326

    
2327
Version 2.1.2.1
2328
---------------
2329

    
2330
*(Released Fri, 7 May 2010)*
2331

    
2332
Fix a bug which prevented untagged KVM instances from starting.
2333

    
2334

    
2335
Version 2.1.2
2336
-------------
2337

    
2338
*(Released Fri, 7 May 2010)*
2339

    
2340
Another release with a long development cycle, during which many
2341
different features were added.
2342

    
2343
Significant features
2344
~~~~~~~~~~~~~~~~~~~~
2345

    
2346
The KVM hypervisor now can run the individual instances as non-root, to
2347
reduce the impact of a VM being hijacked due to bugs in the
2348
hypervisor. It is possible to run all instances as a single (non-root)
2349
user, to manually specify a user for each instance, or to dynamically
2350
allocate a user out of a cluster-wide pool to each instance, with the
2351
guarantee that no two instances will run under the same user ID on any
2352
given node.
2353

    
2354
An experimental RAPI client library, that can be used standalone
2355
(without the other Ganeti libraries), is provided in the source tree as
2356
``lib/rapi/client.py``. Note this client might change its interface in
2357
the future, as we iterate on its capabilities.
2358

    
2359
A new command, ``gnt-cluster renew-crypto`` has been added to easily
2360
replace the cluster's certificates and crypto keys. This might help in
2361
case they have been compromised, or have simply expired.
2362

    
2363
A new disk option for instance creation has been added that allows one
2364
to "adopt" currently existing logical volumes, with data
2365
preservation. This should allow easier migration to Ganeti from
2366
unmanaged (or managed via other software) instances.
2367

    
2368
Another disk improvement is the possibility to convert between redundant
2369
(DRBD) and plain (LVM) disk configuration for an instance. This should
2370
allow better scalability (starting with one node and growing the
2371
cluster, or shrinking a two-node cluster to one node).
2372

    
2373
A new feature that could help with automated node failovers has been
2374
implemented: if a node sees itself as offline (by querying the master
2375
candidates), it will try to shutdown (hard) all instances and any active
2376
DRBD devices. This reduces the risk of duplicate instances if an
2377
external script automatically failovers the instances on such nodes. To
2378
enable this, the cluster parameter ``maintain_node_health`` should be
2379
enabled; in the future this option (per the name) will enable other
2380
automatic maintenance features.
2381

    
2382
Instance export/import now will reuse the original instance
2383
specifications for all parameters; that means exporting an instance,
2384
deleting it and the importing it back should give an almost identical
2385
instance. Note that the default import behaviour has changed from
2386
before, where it created only one NIC; now it recreates the original
2387
number of NICs.
2388

    
2389
Cluster verify has added a few new checks: SSL certificates validity,
2390
/etc/hosts consistency across the cluster, etc.
2391

    
2392
Other changes
2393
~~~~~~~~~~~~~
2394

    
2395
As usual, many internal changes were done, documentation fixes,
2396
etc. Among others:
2397

    
2398
- Fixed cluster initialization with disabled cluster storage (regression
2399
  introduced in 2.1.1)
2400
- File-based storage supports growing the disks
2401
- Fixed behaviour of node role changes
2402
- Fixed cluster verify for some corner cases, plus a general rewrite of
2403
  cluster verify to allow future extension with more checks
2404
- Fixed log spamming by watcher and node daemon (regression introduced
2405
  in 2.1.1)
2406
- Fixed possible validation issues when changing the list of enabled
2407
  hypervisors
2408
- Fixed cleanup of /etc/hosts during node removal
2409
- Fixed RAPI response for invalid methods
2410
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
2411
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
2412
  from ide disks, etc.)
2413
- Allow OS changes without re-installation (to record a changed OS
2414
  outside of Ganeti, or to allow OS renames)
2415
- Allow instance creation without OS installation (useful for example if
2416
  the OS will be installed manually, or restored from a backup not in
2417
  Ganeti format)
2418
- Implemented option to make cluster ``copyfile`` use the replication
2419
  network
2420
- Added list of enabled hypervisors to ssconf (possibly useful for
2421
  external scripts)
2422
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
2423
  1.2 clusters
2424
- A partial form of node re-IP is possible via node readd, which now
2425
  allows changed node primary IP
2426
- Command line utilities now show an informational message if the job is
2427
  waiting for a lock
2428
- The logs of the master daemon now show the PID/UID/GID of the
2429
  connected client
2430

    
2431

    
2432
Version 2.1.1
2433
-------------
2434

    
2435
*(Released Fri, 12 Mar 2010)*
2436

    
2437
During the 2.1.0 long release candidate cycle, a lot of improvements and
2438
changes have accumulated with were released later as 2.1.1.
2439

    
2440
Major changes
2441
~~~~~~~~~~~~~
2442

    
2443
The node evacuate command (``gnt-node evacuate``) was significantly
2444
rewritten, and as such the IAllocator protocol was changed - a new
2445
request type has been added. This unfortunate change during a stable
2446
series is designed to improve performance of node evacuations; on
2447
clusters with more than about five nodes and which are well-balanced,
2448
evacuation should proceed in parallel for all instances of the node
2449
being evacuated. As such, any existing IAllocator scripts need to be
2450
updated, otherwise the above command will fail due to the unknown
2451
request. The provided "dumb" allocator has not been updated; but the
2452
ganeti-htools package supports the new protocol since version 0.2.4.
2453

    
2454
Another important change is increased validation of node and instance
2455
names. This might create problems in special cases, if invalid host
2456
names are being used.
2457

    
2458
Also, a new layer of hypervisor parameters has been added, that sits at
2459
OS level between the cluster defaults and the instance ones. This allows
2460
customisation of virtualization parameters depending on the installed
2461
OS. For example instances with OS 'X' may have a different KVM kernel
2462
(or any other parameter) than the cluster defaults. This is intended to
2463
help managing a multiple OSes on the same cluster, without manual
2464
modification of each instance's parameters.
2465

    
2466
A tool for merging clusters, ``cluster-merge``, has been added in the
2467
tools sub-directory.
2468

    
2469
Bug fixes
2470
~~~~~~~~~
2471

    
2472
- Improved the int/float conversions that should make the code more
2473
  robust in face of errors from the node daemons
2474
- Fixed the remove node code in case of internal configuration errors
2475
- Fixed the node daemon behaviour in face of inconsistent queue
2476
  directory (e.g. read-only file-system where we can't open the files
2477
  read-write, etc.)
2478
- Fixed the behaviour of gnt-node modify for master candidate demotion;
2479
  now it either aborts cleanly or, if given the new "auto_promote"
2480
  parameter, will automatically promote other nodes as needed
2481
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
2482
  completely prevent Ganeti from working
2483
- Fixed bug for instance export when not all disks were successfully
2484
  exported
2485
- Fixed behaviour of node add when the new node is slow in starting up
2486
  the node daemon
2487
- Fixed handling of signals in the LUXI client, which should improve
2488
  behaviour of command-line scripts
2489
- Added checks for invalid node/instance names in the configuration (now
2490
  flagged during cluster verify)
2491
- Fixed watcher behaviour for disk activation errors
2492
- Fixed two potentially endless loops in http library, which led to the
2493
  RAPI daemon hanging and consuming 100% CPU in some cases
2494
- Fixed bug in RAPI daemon related to hashed passwords
2495
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
2496
  instances
2497
- Enhanced compatibility with non-Debian OSes, but not using absolute
2498
  path in some commands and allowing customisation of the ssh
2499
  configuration directory
2500
- Fixed possible future issue with new Python versions by abiding to the
2501
  proper use of ``__slots__`` attribute on classes
2502
- Added checks that should prevent directory traversal attacks
2503
- Many documentation fixes based on feedback from users
2504

    
2505
New features
2506
~~~~~~~~~~~~
2507

    
2508
- Added an "early_release" more for instance replace disks and node
2509
  evacuate, where we release locks earlier and thus allow higher
2510
  parallelism within the cluster
2511
- Added watcher hooks, intended to allow the watcher to restart other
2512
  daemons (e.g. from the ganeti-nbma project), but they can be used of
2513
  course for any other purpose
2514
- Added a compile-time disable for DRBD barriers, to increase
2515
  performance if the administrator trusts the power supply or the
2516
  storage system to not lose writes
2517
- Added the option of using syslog for logging instead of, or in
2518
  addition to, Ganeti's own log files
2519
- Removed boot restriction for paravirtual NICs for KVM, recent versions
2520
  can indeed boot from a paravirtual NIC
2521
- Added a generic debug level for many operations; while this is not
2522
  used widely yet, it allows one to pass the debug value all the way to
2523
  the OS scripts
2524
- Enhanced the hooks environment for instance moves (failovers,
2525
  migrations) where the primary/secondary nodes changed during the
2526
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
2527
- Enhanced data validations for many user-supplied values; one important
2528
  item is the restrictions imposed on instance and node names, which
2529
  might reject some (invalid) host names
2530
- Add a configure-time option to disable file-based storage, if it's not
2531
  needed; this allows greater security separation between the master
2532
  node and the other nodes from the point of view of the inter-node RPC
2533
  protocol
2534
- Added user notification in interactive tools if job is waiting in the
2535
  job queue or trying to acquire locks
2536
- Added log messages when a job is waiting for locks
2537
- Added filtering by node tags in instance operations which admit
2538
  multiple instances (start, stop, reboot, reinstall)
2539
- Added a new tool for cluster mergers, ``cluster-merge``
2540
- Parameters from command line which are of the form ``a=b,c=d`` can now
2541
  use backslash escapes to pass in values which contain commas,
2542
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
2543
  ``b,c``
2544
- For KVM, the instance name is the first parameter passed to KVM, so
2545
  that it's more visible in the process list
2546

    
2547

    
2548
Version 2.1.0
2549
-------------
2550

    
2551
*(Released Tue, 2 Mar 2010)*
2552

    
2553
Ganeti 2.1 brings many improvements with it. Major changes:
2554

    
2555
- Added infrastructure to ease automated disk repairs
2556
- Added new daemon to export configuration data in a cheaper way than
2557
  using the remote API
2558
- Instance NICs can now be routed instead of being associated with a
2559
  networking bridge
2560
- Improved job locking logic to reduce impact of jobs acquiring multiple
2561
  locks waiting for other long-running jobs
2562

    
2563
In-depth implementation details can be found in the Ganeti 2.1 design
2564
document.
2565

    
2566
Details
2567
~~~~~~~
2568

    
2569
- Added chroot hypervisor
2570
- Added more options to xen-hvm hypervisor (``kernel_path`` and
2571
  ``device_model``)
2572
- Added more options to xen-pvm hypervisor (``use_bootloader``,
2573
  ``bootloader_path`` and ``bootloader_args``)
2574
- Added the ``use_localtime`` option for the xen-hvm and kvm
2575
  hypervisors, and the default value for this has changed to false (in
2576
  2.0 xen-hvm always enabled it)
2577
- Added luxi call to submit multiple jobs in one go
2578
- Added cluster initialization option to not modify ``/etc/hosts``
2579
  file on nodes
2580
- Added network interface parameters
2581
- Added dry run mode to some LUs
2582
- Added RAPI resources:
2583

    
2584
  - ``/2/instances/[instance_name]/info``
2585
  - ``/2/instances/[instance_name]/replace-disks``
2586
  - ``/2/nodes/[node_name]/evacuate``
2587
  - ``/2/nodes/[node_name]/migrate``
2588
  - ``/2/nodes/[node_name]/role``
2589
  - ``/2/nodes/[node_name]/storage``
2590
  - ``/2/nodes/[node_name]/storage/modify``
2591
  - ``/2/nodes/[node_name]/storage/repair``
2592

    
2593
- Added OpCodes to evacuate or migrate all instances on a node
2594
- Added new command to list storage elements on nodes (``gnt-node
2595
  list-storage``) and modify them (``gnt-node modify-storage``)
2596
- Added new ssconf files with master candidate IP address
2597
  (``ssconf_master_candidates_ips``), node primary IP address
2598
  (``ssconf_node_primary_ips``) and node secondary IP address
2599
  (``ssconf_node_secondary_ips``)
2600
- Added ``ganeti-confd`` and a client library to query the Ganeti
2601
  configuration via UDP
2602
- Added ability to run hooks after cluster initialization and before
2603
  cluster destruction
2604
- Added automatic mode for disk replace (``gnt-instance replace-disks
2605
  --auto``)
2606
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
2607
  after catastrophic data-loss
2608
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
2609
  groups
2610
- Added ``gnt-instance move`` command to move instances
2611
- Added ``gnt-cluster watcher`` command to control watcher
2612
- Added ``gnt-node powercycle`` command to powercycle nodes
2613
- Added new job status field ``lock_status``
2614
- Added parseable error codes to cluster verification (``gnt-cluster
2615
  verify --error-codes``) and made output less verbose (use
2616
  ``--verbose`` to restore previous behaviour)
2617
- Added UUIDs to the main config entities (cluster, nodes, instances)
2618
- Added support for OS variants
2619
- Added support for hashed passwords in the Ganeti remote API users file
2620
  (``rapi_users``)
2621
- Added option to specify maximum timeout on instance shutdown
2622
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
2623
- Added new helper script to start and stop Ganeti daemons
2624
  (``daemon-util``), with the intent to reduce the work necessary to
2625
  adjust Ganeti for non-Debian distributions and to start/stop daemons
2626
  from one place
2627
- Added more unittests
2628
- Fixed critical bug in ganeti-masterd startup
2629
- Removed the configure-time ``kvm-migration-port`` parameter, this is
2630
  now customisable at the cluster level for both the KVM and Xen
2631
  hypervisors using the new ``migration_port`` parameter
2632
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
2633
  reinstalling an instance
2634
- Allowed ``@`` in tag names
2635
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
2636
- Many documentation updates
2637
- Distribute hypervisor files on ``gnt-cluster redist-conf``
2638
- ``gnt-instance reinstall`` can now reinstall multiple instances
2639
- Updated many command line parameters
2640
- Introduced new OS API version 15
2641
- No longer support a default hypervisor
2642
- Treat virtual LVs as inexistent
2643
- Improved job locking logic to reduce lock contention
2644
- Match instance and node names case insensitively
2645
- Reimplemented bash completion script to be more complete
2646
- Improved burnin
2647

    
2648

    
2649
Version 2.0.6
2650
-------------
2651

    
2652
*(Released Thu, 4 Feb 2010)*
2653

    
2654
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2655
- Fix a string formatting bug
2656
- Improve safety of the code in some error paths
2657
- Improve data validation in the master of values returned from nodes
2658

    
2659

    
2660
Version 2.0.5
2661
-------------
2662

    
2663
*(Released Thu, 17 Dec 2009)*
2664

    
2665
- Fix security issue due to missing validation of iallocator names; this
2666
  allows local and remote execution of arbitrary executables
2667
- Fix failure of gnt-node list during instance removal
2668
- Ship the RAPI documentation in the archive
2669

    
2670

    
2671
Version 2.0.4
2672
-------------
2673

    
2674
*(Released Wed, 30 Sep 2009)*
2675

    
2676
- Fixed many wrong messages
2677
- Fixed a few bugs related to the locking library
2678
- Fixed MAC checking at instance creation time
2679
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
2680
- Fixed a few issues related to signal handling in both daemons and
2681
  scripts
2682
- Fixed the example startup script provided
2683
- Fixed insserv dependencies in the example startup script (patch from
2684
  Debian)
2685
- Fixed handling of drained nodes in the iallocator framework
2686
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2687
  #528618)
2688
- Fixed error related to invalid job IDs in job polling
2689
- Fixed job/opcode persistence on unclean master shutdown
2690
- Fixed handling of partial job processing after unclean master
2691
  shutdown
2692
- Fixed error reporting from LUs, previously all errors were converted
2693
  into execution errors
2694
- Fixed error reporting from burnin
2695
- Decreased significantly the memory usage of the job queue
2696
- Optimised slightly multi-job submission
2697
- Optimised slightly opcode loading
2698
- Backported the multi-job submit framework from the development
2699
  branch; multi-instance start and stop should be faster
2700
- Added script to clean archived jobs after 21 days; this will reduce
2701
  the size of the queue directory
2702
- Added some extra checks in disk size tracking
2703
- Added an example ethers hook script
2704
- Added a cluster parameter that prevents Ganeti from modifying of
2705
  /etc/hosts
2706
- Added more node information to RAPI responses
2707
- Added a ``gnt-job watch`` command that allows following the ouput of a
2708
  job
2709
- Added a bind-address option to ganeti-rapi
2710
- Added more checks to the configuration verify
2711
- Enhanced the burnin script such that some operations can be retried
2712
  automatically
2713
- Converted instance reinstall to multi-instance model
2714

    
2715

    
2716
Version 2.0.3
2717
-------------
2718

    
2719
*(Released Fri, 7 Aug 2009)*
2720

    
2721
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2722
  to allow using the pre-2.0.2 behaviour in activation, if any existing
2723
  instances have mismatched disk sizes in the configuration
2724
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
2725
  any configuration mismatches for disk sizes
2726
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2727
  failover to work on two-node clusters
2728
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2729
  unusable
2730
- Fixed detection of OS script errors in ``gnt-backup export``
2731
- Fixed exit code of ``gnt-backup export``
2732

    
2733

    
2734
Version 2.0.2
2735
-------------
2736

    
2737
*(Released Fri, 17 Jul 2009)*
2738

    
2739
- Added experimental support for stripped logical volumes; this should
2740
  enhance performance but comes with a higher complexity in the block
2741
  device handling; stripping is only enabled when passing
2742
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2743
  affected even in the non-stripped mode
2744
- Improved resiliency against transient failures at the end of DRBD
2745
  resyncs, and in general of DRBD resync checks
2746
- Fixed a couple of issues with exports and snapshot errors
2747
- Fixed a couple of issues in instance listing
2748
- Added display of the disk size in ``gnt-instance info``
2749
- Fixed checking for valid OSes in instance creation
2750
- Fixed handling of the "vcpus" parameter in instance listing and in
2751
  general of invalid parameters
2752
- Fixed http server library, and thus RAPI, to handle invalid
2753
  username/password combinations correctly; this means that now they
2754
  report unauthorized for queries too, not only for modifications,
2755
  allowing earlier detect of configuration problems
2756
- Added a new "role" node list field, equivalent to the master/master
2757
  candidate/drained/offline flags combinations
2758
- Fixed cluster modify and changes of candidate pool size
2759
- Fixed cluster verify error messages for wrong files on regular nodes
2760
- Fixed a couple of issues with node demotion from master candidate role
2761
- Fixed node readd issues
2762
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2763
- Added a new ``--no-voting`` option for masterfailover to fix failover
2764
  on two-nodes clusters when the former master node is unreachable
2765
- Added instance reinstall over RAPI
2766

    
2767

    
2768
Version 2.0.1
2769
-------------
2770

    
2771
*(Released Tue, 16 Jun 2009)*
2772

    
2773
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2774
  allow re-adding the start in single-user option (regression from 1.2)
2775
- the watcher writes the instance status to a file, to allow monitoring
2776
  to report the instance status (from the master) based on cached
2777
  results of the watcher's queries; while this can get stale if the
2778
  watcher is being locked due to other work on the cluster, this is
2779
  still an improvement
2780
- the watcher now also restarts the node daemon and the rapi daemon if
2781
  they died
2782
- fixed the watcher to handle full and drained queue cases
2783
- hooks export more instance data in the environment, which helps if
2784
  hook scripts need to take action based on the instance's properties
2785
  (no longer need to query back into ganeti)
2786
- instance failovers when the instance is stopped do not check for free
2787
  RAM, so that failing over a stopped instance is possible in low memory
2788
  situations
2789
- rapi uses queries for tags instead of jobs (for less job traffic), and
2790
  for cluster tags it won't talk to masterd at all but read them from
2791
  ssconf
2792
- a couple of error handling fixes in RAPI
2793
- drbd handling: improved the error handling of inconsistent disks after
2794
  resync to reduce the frequency of "there are some degraded disks for
2795
  this instance" messages
2796
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2797
  error handling path called a wrong function name)
2798

    
2799

    
2800
Version 2.0.0
2801
-------------
2802

    
2803
*(Released Wed, 27 May 2009)*
2804

    
2805
- no changes from rc5
2806

    
2807

    
2808
Version 2.0 rc5
2809
---------------
2810

    
2811
*(Released Wed, 20 May 2009)*
2812

    
2813
- fix a couple of bugs (validation, argument checks)
2814
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2815
- some small improvements to RAPI and IAllocator
2816
- make watcher automatically start the master daemon if down
2817

    
2818

    
2819
Version 2.0 rc4
2820
---------------
2821

    
2822
*(Released Mon, 27 Apr 2009)*
2823

    
2824
- change the OS list to not require locks; this helps with big clusters
2825
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2826
  volume group is broken
2827
- ``gnt-instance info``, without any arguments, doesn't run for all
2828
  instances anymore; either pass ``--all`` or pass the desired
2829
  instances; this helps against mistakes on big clusters where listing
2830
  the information for all instances takes a long time
2831
- miscellaneous doc and man pages fixes
2832

    
2833

    
2834
Version 2.0 rc3
2835
---------------
2836

    
2837
*(Released Wed, 8 Apr 2009)*
2838

    
2839
- Change the internal locking model of some ``gnt-node`` commands, in
2840
  order to reduce contention (and blocking of master daemon) when
2841
  batching many creation/reinstall jobs
2842
- Fixes to Xen soft reboot
2843
- No longer build documentation at build time, instead distribute it in
2844
  the archive, in order to reduce the need for the whole docbook/rst
2845
  toolchains
2846

    
2847

    
2848
Version 2.0 rc2
2849
---------------
2850

    
2851
*(Released Fri, 27 Mar 2009)*
2852

    
2853
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2854
- Fix watcher startup sequence, improves the behaviour of busy clusters
2855
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2856
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2857
  bind address and other places
2858
- Some documentation fixes and updates
2859

    
2860

    
2861
Version 2.0 rc1
2862
---------------
2863

    
2864
*(Released Mon, 2 Mar 2009)*
2865

    
2866
- More documentation updates, now all docs should be more-or-less
2867
  up-to-date
2868
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2869
  etc.)
2870
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2871
  and KVM)
2872
- Fix an issue related to $libdir/run/ganeti and cluster creation
2873

    
2874

    
2875
Version 2.0 beta2
2876
-----------------
2877

    
2878
*(Released Thu, 19 Feb 2009)*
2879

    
2880
- Xen PVM and KVM have switched the default value for the instance root
2881
  disk to the first partition on the first drive, instead of the whole
2882
  drive; this means that the OS installation scripts must be changed
2883
  accordingly
2884
- Man pages have been updated
2885
- RAPI has been switched by default to HTTPS, and the exported functions
2886
  should all work correctly
2887
- RAPI v1 has been removed
2888
- Many improvements to the KVM hypervisor
2889
- Block device errors are now better reported
2890
- Many other bugfixes and small improvements
2891

    
2892

    
2893
Version 2.0 beta1
2894
-----------------
2895

    
2896
*(Released Mon, 26 Jan 2009)*
2897

    
2898
- Version 2 is a general rewrite of the code and therefore the
2899
  differences are too many to list, see the design document for 2.0 in
2900
  the ``doc/`` subdirectory for more details
2901
- In this beta version there is not yet a migration path from 1.2 (there
2902
  will be one in the final 2.0 release)
2903
- A few significant changes are:
2904

    
2905
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2906
    various ``gnt-*`` commands are just front-ends to it
2907
  - all the commands are entered into, and executed from a job queue,
2908
    see the ``gnt-job(8)`` manpage
2909
  - the RAPI daemon supports read-write operations, secured by basic
2910
    HTTP authentication on top of HTTPS
2911
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2912
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2913
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2914
  - DRBD devices are using statically allocated minor numbers, which
2915
    will be assigned to existing instances during the migration process
2916
  - there is support for both Xen PVM and Xen HVM instances running on
2917
    the same cluster
2918
  - KVM virtualization is supported too
2919
  - file-based storage has been implemented, which means that it is
2920
    possible to run the cluster without LVM and DRBD storage, for
2921
    example using a shared filesystem exported from shared storage (and
2922
    still have live migration)
2923

    
2924

    
2925
Version 1.2.7
2926
-------------
2927

    
2928
*(Released Tue, 13 Jan 2009)*
2929

    
2930
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2931
- Reuse the old instance mac address by default on instance import, if
2932
  the instance name is the same.
2933
- Handle situations in which the node info rpc returns incomplete
2934
  results (issue 46)
2935
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2936
- Improved version of batcher:
2937

    
2938
  - state file support
2939
  - instance mac address support
2940
  - support for HVM clusters/instances
2941

    
2942
- Add an option to show the number of cpu sockets and nodes in
2943
  ``gnt-node list``
2944
- Support OSes that handle more than one version of the OS api (but do
2945
  not change the current API in any other way)
2946
- Fix ``gnt-node migrate``
2947
- ``gnt-debug`` man page
2948
- Fixes various more typos and small issues
2949
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2950

    
2951

    
2952
Version 1.2.6
2953
-------------
2954

    
2955
*(Released Wed, 24 Sep 2008)*
2956

    
2957
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2958
  type of disk exported to fully virtualized instances.
2959
- provide access to the serial console of HVM instances
2960
- instance auto_balance flag, set by default. If turned off it will
2961
  avoid warnings on cluster verify if there is not enough memory to fail
2962
  over an instance. in the future it will prevent automatically failing
2963
  it over when we will support that.
2964
- batcher tool for instance creation, see ``tools/README.batcher``
2965
- ``gnt-instance reinstall --select-os`` to interactively select a new
2966
  operating system when reinstalling an instance.
2967
- when changing the memory amount on instance modify a check has been
2968
  added that the instance will be able to start. also warnings are
2969
  emitted if the instance will not be able to fail over, if auto_balance
2970
  is true.
2971
- documentation fixes
2972
- sync fields between ``gnt-instance list/modify/add/import``
2973
- fix a race condition in drbd when the sync speed was set after giving
2974
  the device a remote peer.
2975

    
2976

    
2977
Version 1.2.5
2978
-------------
2979

    
2980
*(Released Tue, 22 Jul 2008)*
2981

    
2982
- note: the allowed size and number of tags per object were reduced
2983
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2984
- fixed twisted 8.x compatibility
2985
- fixed ``gnt-instance replace-disks`` with iallocator
2986
- add TCP keepalives on twisted connections to detect restarted nodes
2987
- disk increase support, see ``gnt-instance grow-disk``
2988
- implement bulk node/instance query for RAPI
2989
- add tags in node/instance listing (optional)
2990
- experimental migration (and live migration) support, read the man page
2991
  for ``gnt-instance migrate``
2992
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2993
  has some small improvements in handling its state file
2994

    
2995

    
2996
Version 1.2.4
2997
-------------
2998

    
2999
*(Released Fri, 13 Jun 2008)*
3000

    
3001
- Experimental readonly, REST-based remote API implementation;
3002
  automatically started on master node, TCP port 5080, if enabled by
3003
  ``--enable-rapi`` parameter to configure script.
3004
- Instance allocator support. Add and import instance accept a
3005
  ``--iallocator`` parameter, and call that instance allocator to decide
3006
  which node to use for the instance. The iallocator document describes
3007
  what's expected from an allocator script.
3008
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
3009
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
3010
  node is lost there is still enough memory to fail over the instances
3011
  that reside on it.
3012
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
3013
  ``gnt-cluster verify``, to check for site-specific compliance. All the
3014
  hooks will run, and their output, if any, will be displayed. Any
3015
  failing hook will make the verification return an error value.
3016
- ``gnt-cluster verify`` now checks that its peers are reachable on the
3017
  primary and secondary interfaces
3018
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
3019
  that is still declared as part of the cluster and has failed.
3020
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
3021
  specifying output fields, that just adds the chosen fields to the
3022
  default ones.
3023
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
3024
  export from the filesystem.
3025
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
3026
  have been added. Using them you can enable/disable acpi and pae
3027
  support, and specify a path for a cd image to be exported to the
3028
  instance. These parameters as the name suggest only work on HVM
3029
  clusters.
3030
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
3031
  PAE support will be set to the previously hardcoded values, but the
3032
  (previously hardcoded) path to the CDROM ISO image will be unset and
3033
  if required, needs to be set manually with ``gnt-instance modify``
3034
  after the upgrade.
3035
- The address to which an instance's VNC console is bound is now
3036
  selectable per-instance, rather than being cluster wide. Of course
3037
  this only applies to instances controlled via VNC, so currently just
3038
  applies to HVM clusters.
3039

    
3040

    
3041
Version 1.2.3
3042
-------------
3043

    
3044
*(Released Mon, 18 Feb 2008)*
3045

    
3046
- more tweaks to the disk activation code (especially helpful for DRBD)
3047
- change the default ``gnt-instance list`` output format, now there is
3048
  one combined status field (see the manpage for the exact values this
3049
  field will have)
3050
- some more fixes for the mac export to hooks change
3051
- make Ganeti not break with DRBD 8.2.x (which changed the version
3052
  format in ``/proc/drbd``) (issue 24)
3053
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
3054
  template, allowing migration from DRBD0.7+MD to DRBD8
3055

    
3056

    
3057
Version 1.2.2
3058
-------------
3059

    
3060
*(Released Wed, 30 Jan 2008)*
3061

    
3062
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
3063
  support (issue 23)
3064
- add command aliases infrastructure and a few aliases
3065
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
3066
  man pages and the ``--help`` option of ``gnt-node
3067
  list``/``gnt-instance list``
3068
- fix ``gnt-backup list`` with down nodes (issue 21)
3069
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
3070
- fix the dist archive and add a check for including svn/git files in
3071
  the future
3072
- some developer-related changes: improve the burnin and the QA suite,
3073
  add an upload script for testing during development
3074

    
3075

    
3076
Version 1.2.1
3077
-------------
3078

    
3079
*(Released Wed, 16 Jan 2008)*
3080

    
3081
- experimental HVM support, read the install document, section
3082
  "Initializing the cluster"
3083
- allow for the PVM hypervisor per-instance kernel and initrd paths
3084
- add a new command ``gnt-cluster verify-disks`` which uses a new
3085
  algorithm to improve the reconnection of the DRBD pairs if the device
3086
  on the secondary node has gone away
3087
- make logical volume code auto-activate LVs at disk activation time
3088
- slightly improve the speed of activating disks
3089
- allow specification of the MAC address at instance creation time, and
3090
  changing it later via ``gnt-instance modify``
3091
- fix handling of external commands that generate lots of output on
3092
  stderr
3093
- update documentation with regard to minimum version of DRBD8 supported
3094

    
3095

    
3096
Version 1.2.0
3097
-------------
3098

    
3099
*(Released Tue, 4 Dec 2007)*
3100

    
3101
- Log the ``xm create`` output to the node daemon log on failure (to
3102
  help diagnosing the error)
3103
- In debug mode, log all external commands output if failed to the logs
3104
- Change parsing of lvm commands to ignore stderr
3105

    
3106

    
3107
Version 1.2 beta3
3108
-----------------
3109

    
3110
*(Released Wed, 28 Nov 2007)*
3111

    
3112
- Another round of updates to the DRBD 8 code to deal with more failures
3113
  in the replace secondary node operation
3114
- Some more logging of failures in disk operations (lvm, drbd)
3115
- A few documentation updates
3116
- QA updates
3117

    
3118

    
3119
Version 1.2 beta2
3120
-----------------
3121

    
3122
*(Released Tue, 13 Nov 2007)*
3123

    
3124
- Change configuration file format from Python's Pickle to JSON.
3125
  Upgrading is possible using the cfgupgrade utility.
3126
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
3127
  faster replace disks and is more stable (DRBD 8 has many improvements
3128
  compared to DRBD 0.7)
3129
- Added command line tags support (see man pages for ``gnt-instance``,
3130
  ``gnt-node``, ``gnt-cluster``)
3131
- Added instance rename support
3132
- Added multi-instance startup/shutdown
3133
- Added cluster rename support
3134
- Added ``gnt-node evacuate`` to simplify some node operations
3135
- Added instance reboot operation that can speedup reboot as compared to
3136
  stop and start
3137
- Soften the requirement that hostnames are in FQDN format
3138
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
3139
  reboots
3140
- Removed dependency on debian's patched fping that uses the
3141
  non-standard ``-S`` option
3142
- Now the OS definitions are searched for in multiple, configurable
3143
  paths (easier for distros to package)
3144
- Some changes to the hooks infrastructure (especially the new
3145
  post-configuration update hook)
3146
- Other small bugfixes
3147

    
3148
.. vim: set textwidth=72 syntax=rst :
3149
.. Local Variables:
3150
.. mode: rst
3151
.. fill-column: 72
3152
.. End: