Statistics
| Branch: | Tag: | Revision:

root / NEWS @ e15a00dc

History | View | Annotate | Download (117.2 kB)

1
News
2
====
3

    
4

    
5
Version 2.10.0 alpha1
6
---------------------
7

    
8
*(unreleased)*
9

    
10
Incompatible/important changes
11
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12

    
13
- Adding disks with 'gnt-instance modify' now waits for the disks to sync per
14
  default. Specify --no-wait-for-sync to override this behavior.
15
- The Ganeti python code now adheres to a private-module layout. In particular,
16
  the module 'ganeti' is no longer in the python search path.
17
- On instance allocation, the iallocator now considers non-LVM storage
18
  properly. In particular, actual file storage space information is used
19
  when allocating space for a file/sharedfile instance.
20
- When disabling disk templates cluster-wide, the cluster now first
21
  checks whether there are instances still using those templates.
22
- 'gnt-node list-storage' now also reports storage information about
23
  file-based storage types.
24

    
25
New features
26
~~~~~~~~~~~~
27

    
28
- KVM hypervisors can now access RBD storage directly without having to
29
  go through a block device.
30
- A new command 'gnt-cluster upgrade' was added that automates the upgrade
31
  procedure between two Ganeti versions that are both 2.10 or higher.
32
- The move-instance command can now change disk templates when moving
33
  instances, and does not require any node placement options to be
34
  specified if the destination cluster has a default iallocator.
35
- Users can now change the soundhw and cpuid settings for XEN hypervisors.
36
- Hail and hbal now have the (optional) capability of accessing average CPU
37
  load information through the monitoring deamon, and to use it to dynamically
38
  adapt the allocation of instances.
39
- Hotplug support. Introduce new option '--hotplug' to ``gnt-instance modify``
40
  so that disk and NIC modifications take effect without the need of actual
41
  reboot. There are a couple of constrains currently for this feature:
42

    
43
   - only KVM hypervisor (versions >= 1.0) supports it,
44
   - one can not (yet) hotplug a disk using userspace access mode for RBD
45
   - in case of a downgrade instances should suffer a reboot in order to
46
     be migratable (due to core change of runtime files)
47

    
48
Misc changes
49
~~~~~~~~~~~~
50

    
51
- A new test framework for logical units was introduced and the test
52
  coverage for logical units was improved significantly.
53
- Opcodes are entirely generated from Haskell using the tool 'hs2py' and
54
  the module 'src/Ganeti/OpCodes.hs'.
55
- Constants are also generated from Haskell using the tool
56
  'hs2py-constants' and the module 'src/Ganeti/HsConstants.hs', with the
57
  exception of socket related constants, which require changing the
58
  cluster configuration file, and HVS related constants, because they
59
  are part of a port of instance queries to Haskell.  As a result, these
60
  changes will be part of the next release of Ganeti.
61

    
62
New dependencies
63
~~~~~~~~~~~~~~~~
64

    
65
The following new dependencies have been added/updated.
66

    
67
Python
68

    
69
- The version requirements for ``python-mock`` have increased to at least
70
  version 1.0.1. It is still used for testing only.
71

    
72

    
73
Version 2.9.0 rc4
74
-----------------
75

    
76
*(unreleased)*
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

    
148

    
149
Version 2.9.0 rc3
150
-----------------
151

    
152
*(Released Tue, 15 Oct 2013)*
153

    
154
The third release candidate in the 2.9 series. Since 2.9.0 rc2:
155

    
156
- in implicit configuration upgrade, match ipolicy with enabled disk templates
157
- improved harep documentation (inherited from stable-2.8)
158

    
159

    
160
Version 2.9.0 rc2
161
-----------------
162

    
163
*(Released Wed, 9 Oct 2013)*
164

    
165
The second release candidate in the 2.9 series. Since 2.9.0 rc1:
166

    
167
- Fix bug in cfgupgrade that led to failure when upgrading from 2.8 with
168
  at least one DRBD instance.
169
- Fix bug in cfgupgrade that led to an invalid 2.8 configuration after
170
  downgrading.
171

    
172

    
173
Version 2.9.0 rc1
174
-----------------
175

    
176
*(Released Tue, 1 Oct 2013)*
177

    
178
The first release candidate in the 2.9 series. Since 2.9.0 beta1:
179

    
180
- various bug fixes
181
- update of the documentation, in particular installation instructions
182
- merging of LD_* constants into DT_* constants
183
- python style changes to be compatible with newer versions of pylint
184

    
185

    
186
Version 2.9.0 beta1
187
-------------------
188

    
189
*(Released Thu, 29 Aug 2013)*
190

    
191
This was the first beta release of the 2.9 series. All important changes
192
are listed in the latest 2.9 entry.
193

    
194

    
195
Version 2.8.1
196
-------------
197

    
198
*(Released Thu, 17 Oct 2013)*
199

    
200
- Correctly start/stop luxid during gnt-cluster master-failover
201
- Don't attempt IPv6 ssh in case of IPv4 cluster (Issue 595)
202
- Fix path for the job queue serial file
203
- Improved harep man page
204
- Minor documentation improvements
205

    
206

    
207
Version 2.8.0
208
-------------
209

    
210
*(Released Mon, 30 Sep 2013)*
211

    
212
Incompatible/important changes
213
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
214

    
215
- Instance policy can contain multiple instance specs, as described in
216
  the “Constrained instance sizes” section of :doc:`Partitioned Ganeti
217
  <design-partitioned>`. As a consequence, it's not possible to partially change
218
  or override instance specs. Bounding specs (min and max) can be specified as a
219
  whole using the new option ``--ipolicy-bounds-specs``, while standard
220
  specs use the new option ``--ipolicy-std-specs``.
221
- The output of the info command of gnt-cluster, gnt-group, gnt-node,
222
  gnt-instance is a valid YAML object.
223
- hail now honors network restrictions when allocating nodes. This led to an
224
  update of the IAllocator protocol. See the IAllocator documentation for
225
  details.
226
- confd now only answers static configuration request over the network. luxid
227
  was extracted, listens on the local LUXI socket and responds to live queries.
228
  This allows finer grained permissions if using separate users.
229

    
230
New features
231
~~~~~~~~~~~~
232

    
233
- The :doc:`Remote API <rapi>` daemon now supports a command line flag
234
  to always require authentication, ``--require-authentication``. It can
235
  be specified in ``$sysconfdir/default/ganeti``.
236
- A new cluster attribute 'enabled_disk_templates' is introduced. It will
237
  be used to manage the disk templates to be used by instances in the cluster.
238
  Initially, it will be set to a list that includes plain, drbd, if they were
239
  enabled by specifying a volume group name, and file and sharedfile, if those
240
  were enabled at configure time. Additionally, it will include all disk
241
  templates that are currently used by instances. The order of disk templates
242
  will be based on Ganeti's history of supporting them. In the future, the
243
  first entry of the list will be used as a default disk template on instance
244
  creation.
245
- ``cfgupgrade`` now supports a ``--downgrade`` option to bring the
246
  configuration back to the previous stable version.
247
- Disk templates in group ipolicy can be restored to the default value.
248
- Initial support for diskless instances and virtual clusters in QA.
249
- More QA and unit tests for instance policies.
250
- Every opcode now contains a reason trail (visible through ``gnt-job info``)
251
  describing why the opcode itself was executed.
252
- The monitoring daemon is now available. It allows users to query the cluster
253
  for obtaining information about the status of the system. The daemon is only
254
  responsible for providing the information over the network: the actual data
255
  gathering is performed by data collectors (currently, only the DRBD status
256
  collector is available).
257
- In order to help developers work on Ganeti, a new script
258
  (``devel/build_chroot``) is provided, for building a chroot that contains all
259
  the required development libraries and tools for compiling Ganeti on a Debian
260
  Squeeze system.
261
- A new tool, ``harep``, for performing self-repair and recreation of instances
262
  in Ganeti has been added.
263
- Split queries are enabled for tags, network, exports, cluster info, groups,
264
  jobs, nodes.
265
- New command ``show-ispecs-cmd`` for ``gnt-cluster`` and ``gnt-group``.
266
  It prints the command line to set the current policies, to ease
267
  changing them.
268
- Add the ``vnet_hdr`` HV parameter for KVM, to control whether the tap
269
  devices for KVM virtio-net interfaces will get created with VNET_HDR
270
  (IFF_VNET_HDR) support. If set to false, it disables offloading on the
271
  virtio-net interfaces, which prevents host kernel tainting and log
272
  flooding, when dealing with broken or malicious virtio-net drivers.
273
  It's set to true by default.
274
- Instance failover now supports a ``--cleanup`` parameter for fixing previous
275
  failures.
276
- Support 'viridian' parameter in Xen HVM
277
- Support DSA SSH keys in bootstrap
278
- To simplify the work of packaging frameworks that want to add the needed users
279
  and groups in a split-user setup themselves, at build time three files in
280
  ``doc/users`` will be generated. The ``groups`` files contains, one per line,
281
  the groups to be generated, the ``users`` file contains, one per line, the
282
  users to be generated, optionally followed by their primary group, where
283
  important. The ``groupmemberships`` file contains, one per line, additional
284
  user-group membership relations that need to be established. The syntax of
285
  these files will remain stable in all future versions.
286

    
287

    
288
New dependencies
289
~~~~~~~~~~~~~~~~
290
The following new dependencies have been added:
291

    
292
For Haskell:
293
- The ``curl`` library is not optional anymore for compiling the Haskell code.
294
- ``snap-server`` library (if monitoring is enabled).
295

    
296
For Python:
297
- The minimum Python version needed to run Ganeti is now 2.6.
298
- ``yaml`` library (only for running the QA).
299

    
300
Since 2.8.0 rc3
301
~~~~~~~~~~~~~~~
302
- Perform proper cleanup on termination of Haskell daemons
303
- Fix corner-case in handling of remaining retry time
304

    
305

    
306
Version 2.8.0 rc3
307
-----------------
308

    
309
*(Released Tue, 17 Sep 2013)*
310

    
311
- To simplify the work of packaging frameworks that want to add the needed users
312
  and groups in a split-user setup themselves, at build time three files in
313
  ``doc/users`` will be generated. The ``groups`` files contains, one per line,
314
  the groups to be generated, the ``users`` file contains, one per line, the
315
  users to be generated, optionally followed by their primary group, where
316
  important. The ``groupmemberships`` file contains, one per line, additional
317
  user-group membership relations that need to be established. The syntax of
318
  these files will remain stable in all future versions.
319
- Add a default to file-driver when unspecified over RAPI (Issue 571)
320
- Mark the DSA host pubkey as optional, and remove it during config downgrade
321
  (Issue 560)
322
- Some documentation fixes
323

    
324

    
325
Version 2.8.0 rc2
326
-----------------
327

    
328
*(Released Tue, 27 Aug 2013)*
329

    
330
The second release candidate of the 2.8 series. Since 2.8.0. rc1:
331

    
332
- Support 'viridian' parameter in Xen HVM (Issue 233)
333
- Include VCS version in ``gnt-cluster version``
334
- Support DSA SSH keys in bootstrap (Issue 338)
335
- Fix batch creation of instances
336
- Use FQDN to check master node status (Issue 551)
337
- Make the DRBD collector more failure-resilient
338

    
339

    
340
Version 2.8.0 rc1
341
-----------------
342

    
343
*(Released Fri, 2 Aug 2013)*
344

    
345
The first release candidate of the 2.8 series. Since 2.8.0 beta1:
346

    
347
- Fix upgrading/downgrading from 2.7
348
- Increase maximum RAPI message size
349
- Documentation updates
350
- Split ``confd`` between ``luxid`` and ``confd``
351
- Merge 2.7 series up to the 2.7.1 release
352
- Allow the ``modify_etc_hosts`` option to be changed
353
- Add better debugging for ``luxid`` queries
354
- Expose bulk parameter for GetJobs in RAPI client
355
- Expose missing ``network`` fields in RAPI
356
- Add some ``cluster verify`` tests
357
- Some unittest fixes
358
- Fix a malfunction in ``hspace``'s tiered allocation
359
- Fix query compatibility between haskell and python implementations
360
- Add the ``vnet_hdr`` HV parameter for KVM
361
- Add ``--cleanup`` to instance failover
362
- Change the connected groups format in ``gnt-network info`` output; it
363
  was previously displayed as a raw list by mistake. (Merged from 2.7)
364

    
365

    
366
Version 2.8.0 beta1
367
-------------------
368

    
369
*(Released Mon, 24 Jun 2013)*
370

    
371
This was the first beta release of the 2.8 series. All important changes
372
are listed in the latest 2.8 entry.
373

    
374

    
375
Version 2.7.2
376
-------------
377

    
378
*(Released Thu, 26 Sep 2013)*
379

    
380
- Change the connected groups format in ``gnt-network info`` output; it
381
  was previously displayed as a raw list by mistake
382
- Check disk template in right dict when copying
383
- Support multi-instance allocs without iallocator
384
- Fix some errors in the documentation
385
- Fix formatting of tuple in an error message
386

    
387

    
388
Version 2.7.1
389
-------------
390

    
391
*(Released Thu, 25 Jul 2013)*
392

    
393
- Add logrotate functionality in daemon-util
394
- Add logrotate example file
395
- Add missing fields to network queries over rapi
396
- Fix network object timestamps
397
- Add support for querying network timestamps
398
- Fix a typo in the example crontab
399
- Fix a documentation typo
400

    
401

    
402
Version 2.7.0
403
-------------
404

    
405
*(Released Thu, 04 Jul 2013)*
406

    
407
Incompatible/important changes
408
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
409

    
410
- Instance policies for disk size were documented to be on a per-disk
411
  basis, but hail applied them to the sum of all disks. This has been
412
  fixed.
413
- ``hbal`` will now exit with status 0 if, during job execution over
414
  LUXI, early exit has been requested and all jobs are successful;
415
  before, exit status 1 was used, which cannot be differentiated from
416
  "job error" case
417
- Compatibility with newer versions of rbd has been fixed
418
- ``gnt-instance batch-create`` has been changed to use the bulk create
419
  opcode from Ganeti. This lead to incompatible changes in the format of
420
  the JSON file. It's now not a custom dict anymore but a dict
421
  compatible with the ``OpInstanceCreate`` opcode.
422
- Parent directories for file storage need to be listed in
423
  ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
424
  write the file automatically based on old configuration values, but it
425
  can not distribute it across all nodes and the file contents should be
426
  verified. Use ``gnt-cluster copyfile
427
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
428
  upgraded. The reason for requiring this list of paths now is that
429
  before it would have been possible to inject new paths via RPC,
430
  allowing files to be created in arbitrary locations. The RPC protocol
431
  is protected using SSL/X.509 certificates, but as a design principle
432
  Ganeti does not permit arbitrary paths to be passed.
433
- The parsing of the variants file for OSes (see
434
  :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
435
  lines and comment lines (starting with ``#``) are ignored for better
436
  readability.
437
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
438
  longer available. ``gnt-node add`` now invokes a new tool on the
439
  destination node, named ``prepare-node-join``, to configure the SSH
440
  daemon. Paramiko is no longer necessary to configure nodes' SSH
441
  daemons via ``gnt-node add``.
442
- Draining (``gnt-cluster queue drain``) and un-draining the job queue
443
  (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
444
  the flag is not reset after a master failover.
445
- Python 2.4 has *not* been tested with this release. Using 2.6 or above
446
  is recommended. 2.6 will be mandatory from the 2.8 series.
447

    
448

    
449
New features
450
~~~~~~~~~~~~
451

    
452
- New network management functionality to support automatic allocation
453
  of IP addresses and managing of network parameters. See
454
  :manpage:`gnt-network(8)` for more details.
455
- New external storage backend, to allow managing arbitrary storage
456
  systems external to the cluster. See
457
  :manpage:`ganeti-extstorage-interface(7)`.
458
- New ``exclusive-storage`` node parameter added, restricted to
459
  nodegroup level. When it's set to true, physical disks are assigned in
460
  an exclusive fashion to instances, as documented in :doc:`Partitioned
461
  Ganeti <design-partitioned>`.  Currently, only instances using the
462
  ``plain`` disk template are supported.
463
- The KVM hypervisor has been updated with many new hypervisor
464
  parameters, including a generic one for passing arbitrary command line
465
  values. See a complete list in :manpage:`gnt-instance(8)`. It is now
466
  compatible up to qemu 1.4.
467
- A new tool, called ``mon-collector``, is the stand-alone executor of
468
  the data collectors for a monitoring system. As of this version, it
469
  just includes the DRBD data collector, that can be executed by calling
470
  ``mon-collector`` using the ``drbd`` parameter. See
471
  :manpage:`mon-collector(7)`.
472
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
473
  for RAPI users. It allows granting permissions to query for
474
  information to a specific user without giving
475
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
476
- A new tool named ``node-cleanup`` has been added. It cleans remains of
477
  a cluster from a machine by stopping all daemons, removing
478
  certificates and ssconf files. Unless the ``--no-backup`` option is
479
  given, copies of the certificates are made.
480
- Instance creations now support the use of opportunistic locking,
481
  potentially speeding up the (parallel) creation of multiple instances.
482
  This feature is currently only available via the :doc:`RAPI
483
  <rapi>` interface and when an instance allocator is used. If the
484
  ``opportunistic_locking`` parameter is set the opcode will try to
485
  acquire as many locks as possible, but will not wait for any locks
486
  held by other opcodes. If not enough resources can be found to
487
  allocate the instance, the temporary error code
488
  :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
489
  retried thereafter, with or without opportunistic locking.
490
- New experimental linux-ha resource scripts.
491
- Restricted-commands support: ganeti can now be asked (via command line
492
  or rapi) to perform commands on a node. These are passed via ganeti
493
  RPC rather than ssh. This functionality is restricted to commands
494
  specified on the ``$sysconfdir/ganeti/restricted-commands`` for security
495
  reasons. The file is not copied automatically.
496

    
497

    
498
Misc changes
499
~~~~~~~~~~~~
500

    
501
- Diskless instances are now externally mirrored (Issue 237). This for
502
  now has only been tested in conjunction with explicit target nodes for
503
  migration/failover.
504
- Queries not needing locks or RPC access to the node can now be
505
  performed by the confd daemon, making them independent from jobs, and
506
  thus faster to execute. This is selectable at configure time.
507
- The functionality for allocating multiple instances at once has been
508
  overhauled and is now also available through :doc:`RAPI <rapi>`.
509

    
510
There are no significant changes from version 2.7.0~rc3.
511

    
512

    
513
Version 2.7.0 rc3
514
-----------------
515

    
516
*(Released Tue, 25 Jun 2013)*
517

    
518
- Fix permissions on the confd query socket (Issue 477)
519
- Fix permissions on the job archive dir (Issue 498)
520
- Fix handling of an internal exception in replace-disks (Issue 472)
521
- Fix gnt-node info handling of shortened names (Issue 497)
522
- Fix gnt-instance grow-disk when wiping is enabled
523
- Documentation improvements, and support for newer pandoc
524
- Fix hspace honoring ipolicy for disks (Issue 484)
525
- Improve handling of the ``kvm_extra`` HV parameter
526

    
527

    
528
Version 2.7.0 rc2
529
-----------------
530

    
531
*(Released Fri, 24 May 2013)*
532

    
533
- ``devel/upload`` now works when ``/var/run`` on the target nodes is a
534
  symlink.
535
- Disks added through ``gnt-instance modify`` or created through
536
  ``gnt-instance recreate-disks`` are wiped, if the
537
  ``prealloc_wipe_disks`` flag is set.
538
- If wiping newly created disks fails, the disks are removed. Also,
539
  partial failures in creating disks through ``gnt-instance modify``
540
  triggers a cleanup of the partially-created disks.
541
- Removing the master IP address doesn't fail if the address has been
542
  already removed.
543
- Fix ownership of the OS log dir
544
- Workaround missing SO_PEERCRED constant (Issue 191)
545

    
546

    
547
Version 2.7.0 rc1
548
-----------------
549

    
550
*(Released Fri, 3 May 2013)*
551

    
552
This was the first release candidate of the 2.7 series. Since beta3:
553

    
554
- Fix kvm compatibility with qemu 1.4 (Issue 389)
555
- Documentation updates (admin guide, upgrade notes, install
556
  instructions) (Issue 372)
557
- Fix gnt-group list nodes and instances count (Issue 436)
558
- Fix compilation without non-mandatory libraries (Issue 441)
559
- Fix xen-hvm hypervisor forcing nics to type 'ioemu' (Issue 247)
560
- Make confd logging more verbose at INFO level (Issue 435)
561
- Improve "networks" documentation in :manpage:`gnt-instance(8)`
562
- Fix failure path for instance storage type conversion (Issue 229)
563
- Update htools text backend documentation
564
- Improve the renew-crypto section of :manpage:`gnt-cluster(8)`
565
- Disable inter-cluster instance move for file-based instances, because
566
  it is dependant on instance export, which is not supported for
567
  file-based instances. (Issue 414)
568
- Fix gnt-job crashes on non-ascii characters (Issue 427)
569
- Fix volume group checks on non-vm-capable nodes (Issue 432)
570

    
571

    
572
Version 2.7.0 beta3
573
-------------------
574

    
575
*(Released Mon, 22 Apr 2013)*
576

    
577
This was the third beta release of the 2.7 series. Since beta2:
578

    
579
- Fix hail to verify disk instance policies on a per-disk basis (Issue 418).
580
- Fix data loss on wrong usage of ``gnt-instance move``
581
- Properly export errors in confd-based job queries
582
- Add ``users-setup`` tool
583
- Fix iallocator protocol to report 0 as a disk size for diskless
584
  instances. This avoids hail breaking when a diskless instance is
585
  present.
586
- Fix job queue directory permission problem that made confd job queries
587
  fail. This requires running an ``ensure-dirs --full-run`` on upgrade
588
  for access to archived jobs (Issue 406).
589
- Limit the sizes of networks supported by ``gnt-network`` to something
590
  between a ``/16`` and a ``/30`` to prevent memory bloat and crashes.
591
- Fix bugs in instance disk template conversion
592
- Fix GHC 7 compatibility
593
- Fix ``burnin`` install path (Issue 426).
594
- Allow very small disk grows (Issue 347).
595
- Fix a ``ganeti-noded`` memory bloat introduced in 2.5, by making sure
596
  that noded doesn't import masterd code (Issue 419).
597
- Make sure the default metavg at cluster init is the same as the vg, if
598
  unspecified (Issue 358).
599
- Fix cleanup of partially created disks (part of Issue 416)
600

    
601

    
602
Version 2.7.0 beta2
603
-------------------
604

    
605
*(Released Tue, 2 Apr 2013)*
606

    
607
This was the second beta release of the 2.7 series. Since beta1:
608

    
609
- Networks no longer have a "type" slot, since this information was
610
  unused in Ganeti: instead of it tags should be used.
611
- The rapi client now has a ``target_node`` option to MigrateInstance.
612
- Fix early exit return code for hbal (Issue 386).
613
- Fix ``gnt-instance migrate/failover -n`` (Issue 396).
614
- Fix ``rbd showmapped`` output parsing (Issue 312).
615
- Networks are now referenced indexed by UUID, rather than name. This
616
  will require running cfgupgrade, from 2.7.0beta1, if networks are in
617
  use.
618
- The OS environment now includes network information.
619
- Deleting of a network is now disallowed if any instance nic is using
620
  it, to prevent dangling references.
621
- External storage is now documented in man pages.
622
- The exclusive_storage flag can now only be set at nodegroup level.
623
- Hbal can now submit an explicit priority with its jobs.
624
- Many network related locking fixes.
625
- Bump up the required pylint version to 0.25.1.
626
- Fix the ``no_remember`` option in RAPI client.
627
- Many ipolicy related tests, qa, and fixes.
628
- Many documentation improvements and fixes.
629
- Fix building with ``--disable-file-storage``.
630
- Fix ``-q`` option in htools, which was broken if passed more than
631
  once.
632
- Some haskell/python interaction improvements and fixes.
633
- Fix iallocator in case of missing LVM storage.
634
- Fix confd config load in case of ``--no-lvm-storage``.
635
- The confd/query functionality is now mentioned in the security
636
  documentation.
637

    
638

    
639
Version 2.7.0 beta1
640
-------------------
641

    
642
*(Released Wed, 6 Feb 2013)*
643

    
644
This was the first beta release of the 2.7 series. All important changes
645
are listed in the latest 2.7 entry.
646

    
647

    
648
Version 2.6.2
649
-------------
650

    
651
*(Released Fri, 21 Dec 2012)*
652

    
653
Important behaviour change: hbal won't rebalance anymore instances which
654
have the ``auto_balance`` attribute set to false. This was the intention
655
all along, but until now it only skipped those from the N+1 memory
656
reservation (DRBD-specific).
657

    
658
A significant number of bug fixes in this release:
659

    
660
- Fixed disk adoption interaction with ipolicy checks.
661
- Fixed networking issues when instances are started, stopped or
662
  migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
663
- Fixed the warning in cluster verify for shared storage instances not
664
  being redundant.
665
- Fixed removal of storage directory on shared file storage (issue 262).
666
- Fixed validation of LVM volume group name in OpClusterSetParams
667
  (``gnt-cluster modify``) (issue 285).
668
- Fixed runtime memory increases (``gnt-instance modify -m``).
669
- Fixed live migration under Xen's ``xl`` mode.
670
- Fixed ``gnt-instance console`` with ``xl``.
671
- Fixed building with newer Haskell compiler/libraries.
672
- Fixed PID file writing in Haskell daemons (confd); this prevents
673
  restart issues if confd was launched manually (outside of
674
  ``daemon-util``) while another copy of it was running
675
- Fixed a type error when doing live migrations with KVM (issue 297) and
676
  the error messages for failing migrations have been improved.
677
- Fixed opcode validation for the out-of-band commands (``gnt-node
678
  power``).
679
- Fixed a type error when unsetting OS hypervisor parameters (issue
680
  311); now it's possible to unset all OS-specific hypervisor
681
  parameters.
682
- Fixed the ``dry-run`` mode for many operations: verification of
683
  results was over-zealous but didn't take into account the ``dry-run``
684
  operation, resulting in "wrong" failures.
685
- Fixed bash completion in ``gnt-job list`` when the job queue has
686
  hundreds of entries; especially with older ``bash`` versions, this
687
  results in significant CPU usage.
688

    
689
And lastly, a few other improvements have been made:
690

    
691
- Added option to force master-failover without voting (issue 282).
692
- Clarified error message on lock conflict (issue 287).
693
- Logging of newly submitted jobs has been improved (issue 290).
694
- Hostname checks have been made uniform between instance rename and
695
  create (issue 291).
696
- The ``--submit`` option is now supported by ``gnt-debug delay``.
697
- Shutting down the master daemon by sending SIGTERM now stops it from
698
  processing jobs waiting for locks; instead, those jobs will be started
699
  once again after the master daemon is started the next time (issue
700
  296).
701
- Support for Xen's ``xl`` program has been improved (besides the fixes
702
  above).
703
- Reduced logging noise in the Haskell confd daemon (only show one log
704
  entry for each config reload, instead of two).
705
- Several man page updates and typo fixes.
706

    
707

    
708
Version 2.6.1
709
-------------
710

    
711
*(Released Fri, 12 Oct 2012)*
712

    
713
A small bugfix release. Among the bugs fixed:
714

    
715
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
716
  made the command unusable.
717
- Commands that issue many jobs don't fail anymore just because some jobs
718
  take so long that other jobs are archived.
719
- Failures during ``gnt-instance reinstall`` are reflected by the exit
720
  status.
721
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
722
  DRBD is enabled.
723
- When ``always_failover`` is set, ``--allow-failover`` is not required
724
  in migrate commands anymore.
725
- ``bash_completion`` works even if extglob is disabled.
726
- Fixed bug with locks that made failover for RDB-based instances fail.
727
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
728
  a random node instead of one based on the allocator metric.
729
- Support for newer versions of pylint and pep8.
730
- Hail doesn't fail anymore when trying to add an instance of type
731
  ``file``, ``sharedfile`` or ``rbd``.
732
- Added new Makefile target to rebuild the whole distribution, so that
733
  all files are included.
734

    
735

    
736
Version 2.6.0
737
-------------
738

    
739
*(Released Fri, 27 Jul 2012)*
740

    
741

    
742
.. attention:: The ``LUXI`` protocol has been made more consistent
743
   regarding its handling of command arguments. This, however, leads to
744
   incompatibility issues with previous versions. Please ensure that you
745
   restart Ganeti daemons soon after the upgrade, otherwise most
746
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
747
   pausing/resuming the watcher, cancelling and archiving jobs, querying
748
   the cluster configuration) will fail.
749

    
750

    
751
New features
752
~~~~~~~~~~~~
753

    
754
Instance run status
755
+++++++++++++++++++
756

    
757
The current ``admin_up`` field, which used to denote whether an instance
758
should be running or not, has been removed. Instead, ``admin_state`` is
759
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
760

    
761
The rational behind this is that an instance being “down” can have
762
different meanings:
763

    
764
- it could be down during a reboot
765
- it could be temporarily be down for a reinstall
766
- or it could be down because it is deprecated and kept just for its
767
  disk
768

    
769
The previous Boolean state was making it difficult to do capacity
770
calculations: should Ganeti reserve memory for a down instance? Now, the
771
tri-state field makes it clear:
772

    
773
- in ``up`` and ``down`` state, all resources are reserved for the
774
  instance, and it can be at any time brought up if it is down
775
- in ``offline`` state, only disk space is reserved for it, but not
776
  memory or CPUs
777

    
778
The field can have an extra use: since the transition between ``up`` and
779
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
780
transition between ``offline`` and ``down`` is done via ``gnt-instance
781
modify``, it is possible to given different rights to users. For
782
example, owners of an instance could be allowed to start/stop it, but
783
not transition it out of the offline state.
784

    
785
Instance policies and specs
786
+++++++++++++++++++++++++++
787

    
788
In previous Ganeti versions, an instance creation request was not
789
limited on the minimum size and on the maximum size just by the cluster
790
resources. As such, any policy could be implemented only in third-party
791
clients (RAPI clients, or shell wrappers over ``gnt-*``
792
tools). Furthermore, calculating cluster capacity via ``hspace`` again
793
required external input with regards to instance sizes.
794

    
795
In order to improve these workflows and to allow for example better
796
per-node group differentiation, we introduced instance specs, which
797
allow declaring:
798

    
799
- minimum instance disk size, disk count, memory size, cpu count
800
- maximum values for the above metrics
801
- and “standard” values (used in ``hspace`` to calculate the standard
802
  sized instances)
803

    
804
The minimum/maximum values can be also customised at node-group level,
805
for example allowing more powerful hardware to support bigger instance
806
memory sizes.
807

    
808
Beside the instance specs, there are a few other settings belonging to
809
the instance policy framework. It is possible now to customise, per
810
cluster and node-group:
811

    
812
- the list of allowed disk templates
813
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
814
- the maximum ratio of instance to spindles (see below for more
815
  information) for local storage
816

    
817
All these together should allow all tools that talk to Ganeti to know
818
what are the ranges of allowed values for instances and the
819
over-subscription that is allowed.
820

    
821
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
822
instance configuration, and the physical CPU configuration from the
823
node. For the spindle ratios however, we didn't track before these
824
values, so new parameters have been added:
825

    
826
- a new node parameter ``spindle_count``, defaults to 1, customisable at
827
  node group or node level
828
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
829

    
830
Note that spindles in this context doesn't need to mean actual
831
mechanical hard-drives; it's just a relative number for both the node
832
I/O capacity and instance I/O consumption.
833

    
834
Instance migration behaviour
835
++++++++++++++++++++++++++++
836

    
837
While live-migration is in general desirable over failover, it is
838
possible that for some workloads it is actually worse, due to the
839
variable time of the “suspend” phase during live migration.
840

    
841
To allow the tools to work consistently over such instances (without
842
having to hard-code instance names), a new backend parameter
843
``always_failover`` has been added to control the migration/failover
844
behaviour. When set to True, all migration requests for an instance will
845
instead fall-back to failover.
846

    
847
Instance memory ballooning
848
++++++++++++++++++++++++++
849

    
850
Initial support for memory ballooning has been added. The memory for an
851
instance is no longer fixed (backend parameter ``memory``), but instead
852
can vary between minimum and maximum values (backend parameters
853
``minmem`` and ``maxmem``). Currently we only change an instance's
854
memory when:
855

    
856
- live migrating or failing over and instance and the target node
857
  doesn't have enough memory
858
- user requests changing the memory via ``gnt-instance modify
859
  --runtime-memory``
860

    
861
Instance CPU pinning
862
++++++++++++++++++++
863

    
864
In order to control the use of specific CPUs by instance, support for
865
controlling CPU pinning has been added for the Xen, HVM and LXC
866
hypervisors. This is controlled by a new hypervisor parameter
867
``cpu_mask``; details about possible values for this are in the
868
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
869
VCPU-to-CPU mapping) form will work well only when all nodes in your
870
cluster have the same amount of CPUs.
871

    
872
Disk parameters
873
+++++++++++++++
874

    
875
Another area in which Ganeti was not customisable were the parameters
876
used for storage configuration, e.g. how many stripes to use for LVM,
877
DRBD resync configuration, etc.
878

    
879
To improve this area, we've added disks parameters, which are
880
customisable at cluster and node group level, and which allow to
881
specify various parameters for disks (DRBD has the most parameters
882
currently), for example:
883

    
884
- DRBD resync algorithm and parameters (e.g. speed)
885
- the default VG for meta-data volumes for DRBD
886
- number of stripes for LVM (plain disk template)
887
- the RBD pool
888

    
889
These parameters can be modified via ``gnt-cluster modify -D …`` and
890
``gnt-group modify -D …``, and are used at either instance creation (in
891
case of LVM stripes, for example) or at disk “activation” time
892
(e.g. resync speed).
893

    
894
Rados block device support
895
++++++++++++++++++++++++++
896

    
897
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
898
denoted by the ``rbd`` disk template type. This is considered
899
experimental, feedback is welcome. For details on configuring it, see
900
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
901

    
902
Master IP setup
903
+++++++++++++++
904

    
905
The existing master IP functionality works well only in simple setups (a
906
single network shared by all nodes); however, if nodes belong to
907
different networks, then the ``/32`` setup and lack of routing
908
information is not enough.
909

    
910
To allow the master IP to function well in more complex cases, the
911
system was reworked as follows:
912

    
913
- a master IP netmask setting has been added
914
- the master IP activation/turn-down code was moved from the node daemon
915
  to a separate script
916
- whether to run the Ganeti-supplied master IP script or a user-supplied
917
  on is a ``gnt-cluster init`` setting
918

    
919
Details about the location of the standard and custom setup scripts are
920
in the man page :manpage:`gnt-cluster(8)`; for information about the
921
setup script protocol, look at the Ganeti-supplied script.
922

    
923
SPICE support
924
+++++++++++++
925

    
926
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
927
improved.
928

    
929
It is now possible to use TLS-protected connections, and when renewing
930
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
931
it is now possible to specify spice or spice CA certificates. Also, it
932
is possible to configure a password for SPICE sessions via the
933
hypervisor parameter ``spice_password_file``.
934

    
935
There are also new parameters to control the compression and streaming
936
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
937
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
938
for the spice parameters.
939

    
940
Lastly, it is now possible to see the SPICE connection information via
941
``gnt-instance console``.
942

    
943
OVF converter
944
+++++++++++++
945

    
946
A new tool (``tools/ovfconverter``) has been added that supports
947
conversion between Ganeti and the `Open Virtualization Format
948
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
949
from).
950

    
951
This relies on the ``qemu-img`` tool to convert the disk formats, so the
952
actual compatibility with other virtualization solutions depends on it.
953

    
954
Confd daemon changes
955
++++++++++++++++++++
956

    
957
The configuration query daemon (``ganeti-confd``) is now optional, and
958
has been rewritten in Haskell; whether to use the daemon at all, use the
959
Python (default) or the Haskell version is selectable at configure time
960
via the ``--enable-confd`` parameter, which can take one of the
961
``haskell``, ``python`` or ``no`` values. If not used, disabling the
962
daemon will result in a smaller footprint; for larger systems, we
963
welcome feedback on the Haskell version which might become the default
964
in future versions.
965

    
966
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
967
daemon running. The Python version doesn't implement the new call.
968

    
969

    
970
User interface changes
971
~~~~~~~~~~~~~~~~~~~~~~
972

    
973
We have replaced the ``--disks`` option of ``gnt-instance
974
replace-disks`` with a more flexible ``--disk`` option, which allows
975
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
976
disk size and mode can be changed upon recreation (via ``gnt-instance
977
recreate-disks``, which accepts the same ``--disk`` option).
978

    
979
As many people are used to a ``show`` command, we have added that as an
980
alias to ``info`` on all ``gnt-*`` commands.
981

    
982
The ``gnt-instance grow-disk`` command has a new mode in which it can
983
accept the target size of the disk, instead of the delta; this can be
984
more safe since two runs in absolute mode will be idempotent, and
985
sometimes it's also easier to specify the desired size directly.
986

    
987
Also the handling of instances with regard to offline secondaries has
988
been improved. Instance operations should not fail because one of it's
989
secondary nodes is offline, even though it's safe to proceed.
990

    
991
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
992
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
993
minors to instance name.
994

    
995
API changes
996
~~~~~~~~~~~
997

    
998
RAPI coverage has improved, with (for example) new resources for
999
recreate-disks, node power-cycle, etc.
1000

    
1001
Compatibility
1002
~~~~~~~~~~~~~
1003

    
1004
There is partial support for ``xl`` in the Xen hypervisor; feedback is
1005
welcome.
1006

    
1007
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
1008
whether to still support Python 2.4 or move to Python 2.6 as minimum
1009
required version.
1010

    
1011
Support for Fedora has been slightly improved; the provided example
1012
init.d script should work better on it and the INSTALL file should
1013
document the needed dependencies.
1014

    
1015
Internal changes
1016
~~~~~~~~~~~~~~~~
1017

    
1018
The deprecated ``QueryLocks`` LUXI request has been removed. Use
1019
``Query(what=QR_LOCK, ...)`` instead.
1020

    
1021
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
1022
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
1023
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
1024
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
1025
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
1026

    
1027
RAPI client: ``CertificateError`` now derives from
1028
``GanetiApiError``. This should make it more easy to handle Ganeti
1029
errors.
1030

    
1031
Deprecation warnings due to PyCrypto/paramiko import in
1032
``tools/setup-ssh`` have been silenced, as usually they are safe; please
1033
make sure to run an up-to-date paramiko version, if you use this tool.
1034

    
1035
The QA scripts now depend on Python 2.5 or above (the main code base
1036
still works with Python 2.4).
1037

    
1038
The configuration file (``config.data``) is now written without
1039
indentation for performance reasons; if you want to edit it, it can be
1040
re-formatted via ``tools/fmtjson``.
1041

    
1042
A number of bugs has been fixed in the cluster merge tool.
1043

    
1044
``x509`` certification verification (used in import-export) has been
1045
changed to allow the same clock skew as permitted by the cluster
1046
verification. This will remove some rare but hard to diagnose errors in
1047
import-export.
1048

    
1049

    
1050
Version 2.6.0 rc4
1051
-----------------
1052

    
1053
*(Released Thu, 19 Jul 2012)*
1054

    
1055
Very few changes from rc4 to the final release, only bugfixes:
1056

    
1057
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
1058
  instance, fix CDROM booting for KVM instances)
1059
- fixed node group modification of node parameters
1060
- fixed issue in LUClusterVerifyGroup with multi-group clusters
1061
- fixed generation of bash completion to ensure a stable ordering
1062
- fixed a few typos
1063

    
1064

    
1065
Version 2.6.0 rc3
1066
-----------------
1067

    
1068
*(Released Fri, 13 Jul 2012)*
1069

    
1070
Third release candidate for 2.6. The following changes were done from
1071
rc3 to rc4:
1072

    
1073
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
1074
- Fixed an inconsistency in the LUXI protocol with the provided
1075
  arguments (NOT backwards compatible)
1076
- Fixed a bug with node groups ipolicy where ``min`` was greater than
1077
  the cluster ``std`` value
1078
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
1079
  easier instance debugging on nodes (requires ``hconfd`` to work)
1080

    
1081

    
1082
Version 2.6.0 rc2
1083
-----------------
1084

    
1085
*(Released Tue, 03 Jul 2012)*
1086

    
1087
Second release candidate for 2.6. The following changes were done from
1088
rc2 to rc3:
1089

    
1090
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
1091
  master candidates
1092
- Fixed a RAPI regression on missing beparams/memory
1093
- Fixed redistribution of files on offline nodes
1094
- Added possibility to run activate-disks even though secondaries are
1095
  offline. With this change it relaxes also the strictness on some other
1096
  commands which use activate disks internally:
1097
  * ``gnt-instance start|reboot|rename|backup|export``
1098
- Made it possible to remove safely an instance if its secondaries are
1099
  offline
1100
- Made it possible to reinstall even though secondaries are offline
1101

    
1102

    
1103
Version 2.6.0 rc1
1104
-----------------
1105

    
1106
*(Released Mon, 25 Jun 2012)*
1107

    
1108
First release candidate for 2.6. The following changes were done from
1109
rc1 to rc2:
1110

    
1111
- Fixed bugs with disk parameters and ``rbd`` templates as well as
1112
  ``instance_os_add``
1113
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
1114
  behaviour. It supports now the modify operation
1115
- ``hcheck`` implemented to analyze cluster health and possibility of
1116
  improving health by rebalance
1117
- ``hbal`` has been improved in dealing with split instances
1118

    
1119

    
1120
Version 2.6.0 beta2
1121
-------------------
1122

    
1123
*(Released Mon, 11 Jun 2012)*
1124

    
1125
Second beta release of 2.6. The following changes were done from beta2
1126
to rc1:
1127

    
1128
- Fixed ``daemon-util`` with non-root user models
1129
- Fixed creation of plain instances with ``--no-wait-for-sync``
1130
- Fix wrong iv_names when running ``cfgupgrade``
1131
- Export more information in RAPI group queries
1132
- Fixed bug when changing instance network interfaces
1133
- Extended burnin to do NIC changes
1134
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
1135
- Changed default for DRBD barriers
1136
- Fixed DRBD error reporting for syncer rate
1137
- Verify the options on disk parameters
1138

    
1139
And of course various fixes to documentation and improved unittests and
1140
QA.
1141

    
1142

    
1143
Version 2.6.0 beta1
1144
-------------------
1145

    
1146
*(Released Wed, 23 May 2012)*
1147

    
1148
First beta release of 2.6. The following changes were done from beta1 to
1149
beta2:
1150

    
1151
- integrated patch for distributions without ``start-stop-daemon``
1152
- adapted example init.d script to work on Fedora
1153
- fixed log handling in Haskell daemons
1154
- adapted checks in the watcher for pycurl linked against libnss
1155
- add partial support for ``xl`` instead of ``xm`` for Xen
1156
- fixed a type issue in cluster verification
1157
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
1158
  clusters)
1159

    
1160
Plus integrated fixes from the 2.5 branch:
1161

    
1162
- fixed ``kvm-ifup`` to use ``/bin/bash``
1163
- fixed parallel build failures
1164
- KVM live migration when using a custom keymap
1165

    
1166

    
1167
Version 2.5.2
1168
-------------
1169

    
1170
*(Released Tue, 24 Jul 2012)*
1171

    
1172
A small bugfix release, with no new features:
1173

    
1174
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
1175
  different default shell (e.g. Debian, Ubuntu)
1176
- fixed KVM startup and live migration with a custom keymap (fixes Issue
1177
  243 and Debian bug #650664)
1178
- fixed compatibility with KVM versions that don't support multiple boot
1179
  devices (fixes Issue 230 and Debian bug #624256)
1180

    
1181
Additionally, a few fixes were done to the build system (fixed parallel
1182
build failures) and to the unittests (fixed race condition in test for
1183
FileID functions, and the default enable/disable mode for QA test is now
1184
customisable).
1185

    
1186

    
1187
Version 2.5.1
1188
-------------
1189

    
1190
*(Released Fri, 11 May 2012)*
1191

    
1192
A small bugfix release.
1193

    
1194
The main issues solved are on the topic of compatibility with newer LVM
1195
releases:
1196

    
1197
- fixed parsing of ``lv_attr`` field
1198
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
1199
  the ``--force`` flag is needed
1200

    
1201
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
1202
to accept kernel 3.x too (was hardcoded to 2.6.*).
1203

    
1204
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
1205
of hook results and that also made display of other errors suboptimal
1206
was fixed; the code behaves now like 2.4 and earlier.
1207

    
1208
Another change in 2.5, the cleanup of the OS scripts environment, is too
1209
aggressive: it removed even the ``PATH`` variable, which requires the OS
1210
scripts to *always* need to export it. Since this is a bit too strict,
1211
we now export a minimal PATH, the same that we export for hooks.
1212

    
1213
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
1214
integrated into this release.
1215

    
1216
Finally, a few other miscellaneous changes were done (no new features,
1217
just small improvements):
1218

    
1219
- Fix ``gnt-group --help`` display
1220
- Fix hardcoded Xen kernel path
1221
- Fix grow-disk handling of invalid units
1222
- Update synopsis for ``gnt-cluster repair-disk-sizes``
1223
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
1224

    
1225

    
1226
Version 2.5.0
1227
-------------
1228

    
1229
*(Released Thu, 12 Apr 2012)*
1230

    
1231
Incompatible/important changes and bugfixes
1232
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1233

    
1234
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
1235
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
1236
  to match the underlying LUXI interface.
1237
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
1238
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
1239
  not maintain backwards-compatibility as the underlying operation
1240
  changed in an incompatible way. The RAPI client can talk to old
1241
  servers, but it needs to be told so as the return value changed.
1242
- When creating file-based instances via RAPI, the ``file_driver``
1243
  parameter no longer defaults to ``loop`` and must be specified.
1244
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
1245
  ``link`` instead.
1246
- Support for the undocumented and deprecated RAPI instance creation
1247
  request format version 0 has been dropped. Use version 1, supported
1248
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
1249
- Pyparsing 1.4.6 or above is required, see :doc:`installation
1250
  documentation <install>`.
1251
- The "cluster-verify" hooks are now executed per group by the
1252
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
1253
  if you just run ``gnt-cluster verify``, which generates one opcode per
1254
  group.
1255
- The environment as passed to the OS scripts is cleared, and thus no
1256
  environment variables defined in the node daemon's environment will be
1257
  inherited by the scripts.
1258
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
1259
  deprecated.
1260
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
1261
  support operations involving multiple node groups.
1262
- Offline nodes are ignored when failing over an instance.
1263
- Support for KVM version 1.0, which changed the version reporting format
1264
  from 3 to 2 digits.
1265
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
1266
  removal.
1267
- ``Makefile`` is now compatible with Automake 1.11.2
1268
- Includes all bugfixes made in the 2.4 series
1269

    
1270
New features
1271
~~~~~~~~~~~~
1272

    
1273
- The ganeti-htools project has been merged into the ganeti-core source
1274
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
1275
- Implemented support for :doc:`shared storage <design-shared-storage>`.
1276
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
1277
  GPT-style partition tables (requires `parted
1278
  <http://www.gnu.org/s/parted/>`_).
1279
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
1280
- Allowed adding tags on instance creation.
1281
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
1282
- Allow instances to be started in a paused state, enabling the user to
1283
  see the complete console output on boot using the console.
1284
- Added new hypervisor flag to control default reboot behaviour
1285
  (``reboot_behavior``).
1286
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
1287
- Improved out-of-band management support:
1288

    
1289
  - Added ``gnt-node health`` command reporting the health status of
1290
    nodes.
1291
  - Added ``gnt-node power`` command to manage power status of nodes.
1292
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
1293

    
1294
- Instance migration can fall back to failover if instance is not
1295
  running.
1296
- Filters can be used when listing nodes, instances, groups and locks;
1297
  see :manpage:`ganeti(7)` manpage.
1298
- Added post-execution status as variables to :doc:`hooks <hooks>`
1299
  environment.
1300
- Instance tags are exported/imported together with the instance.
1301
- When given an explicit job ID, ``gnt-job info`` will work for archived
1302
  jobs.
1303
- Jobs can define dependencies on other jobs (not yet supported via
1304
  RAPI or command line, but used by internal commands and usable via
1305
  LUXI).
1306

    
1307
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
1308
    dependencies.
1309

    
1310
- Instance failover is now available as a RAPI resource
1311
  (``/2/instances/[instance_name]/failover``).
1312
- ``gnt-instance info`` defaults to static information if primary node
1313
  is offline.
1314
- Opcodes have a new ``comment`` attribute.
1315
- Added basic SPICE support to KVM hypervisor.
1316
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
1317

    
1318
Node group improvements
1319
~~~~~~~~~~~~~~~~~~~~~~~
1320

    
1321
- ``gnt-cluster verify`` has been modified to check groups separately,
1322
  thereby improving performance.
1323
- Node group support has been added to ``gnt-cluster verify-disks``,
1324
  which now operates per node group.
1325
- Watcher has been changed to work better with node groups.
1326

    
1327
  - One process and state file per node group.
1328
  - Slow watcher in one group doesn't block other group's watcher.
1329

    
1330
- Added new command, ``gnt-group evacuate``, to move all instances in a
1331
  node group to other groups.
1332
- Added ``gnt-instance change-group`` to move an instance to another
1333
  node group.
1334
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
1335
  per-group operations.
1336
- Node groups can be tagged.
1337
- Some operations switch from an exclusive to a shared lock as soon as
1338
  possible.
1339
- Instance's primary and secondary nodes' groups are now available as
1340
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
1341
  and ``snodes.group.uuid``).
1342

    
1343
Misc
1344
~~~~
1345

    
1346
- Numerous updates to documentation and manpages.
1347

    
1348
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
1349
    descriptions.
1350
  - Some opcode/job results are now also documented, see :doc:`RAPI
1351
    <rapi>`.
1352

    
1353
- A lockset's internal lock is now also visible in lock monitor.
1354
- Log messages from job queue workers now contain information about the
1355
  opcode they're processing.
1356
- ``gnt-instance console`` no longer requires the instance lock.
1357
- A short delay when waiting for job changes reduces the number of LUXI
1358
  requests significantly.
1359
- DRBD metadata volumes are overwritten with zeros during disk creation.
1360
- Out-of-band commands no longer acquire the cluster lock in exclusive
1361
  mode.
1362
- ``devel/upload`` now uses correct permissions for directories.
1363

    
1364

    
1365
Version 2.5.0 rc6
1366
-----------------
1367

    
1368
*(Released Fri, 23 Mar 2012)*
1369

    
1370
This was the sixth release candidate of the 2.5 series.
1371

    
1372

    
1373
Version 2.5.0 rc5
1374
-----------------
1375

    
1376
*(Released Mon, 9 Jan 2012)*
1377

    
1378
This was the fifth release candidate of the 2.5 series.
1379

    
1380

    
1381
Version 2.5.0 rc4
1382
-----------------
1383

    
1384
*(Released Thu, 27 Oct 2011)*
1385

    
1386
This was the fourth release candidate of the 2.5 series.
1387

    
1388

    
1389
Version 2.5.0 rc3
1390
-----------------
1391

    
1392
*(Released Wed, 26 Oct 2011)*
1393

    
1394
This was the third release candidate of the 2.5 series.
1395

    
1396

    
1397
Version 2.5.0 rc2
1398
-----------------
1399

    
1400
*(Released Tue, 18 Oct 2011)*
1401

    
1402
This was the second release candidate of the 2.5 series.
1403

    
1404

    
1405
Version 2.5.0 rc1
1406
-----------------
1407

    
1408
*(Released Tue, 4 Oct 2011)*
1409

    
1410
This was the first release candidate of the 2.5 series.
1411

    
1412

    
1413
Version 2.5.0 beta3
1414
-------------------
1415

    
1416
*(Released Wed, 31 Aug 2011)*
1417

    
1418
This was the third beta release of the 2.5 series.
1419

    
1420

    
1421
Version 2.5.0 beta2
1422
-------------------
1423

    
1424
*(Released Mon, 22 Aug 2011)*
1425

    
1426
This was the second beta release of the 2.5 series.
1427

    
1428

    
1429
Version 2.5.0 beta1
1430
-------------------
1431

    
1432
*(Released Fri, 12 Aug 2011)*
1433

    
1434
This was the first beta release of the 2.5 series.
1435

    
1436

    
1437
Version 2.4.5
1438
-------------
1439

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

    
1442
- Fixed bug when parsing command line parameter values ending in
1443
  backslash
1444
- Fixed assertion error after unclean master shutdown
1445
- Disable HTTP client pool for RPC, significantly reducing memory usage
1446
  of master daemon
1447
- Fixed queue archive creation with wrong permissions
1448

    
1449

    
1450
Version 2.4.4
1451
-------------
1452

    
1453
*(Released Tue, 23 Aug 2011)*
1454

    
1455
Small bug-fixes:
1456

    
1457
- Fixed documentation for importing with ``--src-dir`` option
1458
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
1459
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
1460

    
1461

    
1462
Version 2.4.3
1463
-------------
1464

    
1465
*(Released Fri, 5 Aug 2011)*
1466

    
1467
Many bug-fixes and a few small features:
1468

    
1469
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
1470
  issues when you tried to add an instance with two MAC addresses in one
1471
  request
1472
- KVM: fixed per-instance stored UID value
1473
- KVM: configure bridged NICs at migration start
1474
- KVM: Fix a bug where instance will not start with never KVM versions
1475
  (>= 0.14)
1476
- Added OS search path to ``gnt-cluster info``
1477
- Fixed an issue with ``file_storage_dir`` where you were forced to
1478
  provide an absolute path, but the documentation states it is a
1479
  relative path, the documentation was right
1480
- Added a new parameter to instance stop/start called ``--no-remember``
1481
  that will make the state change to not be remembered
1482
- Implemented ``no_remember`` at RAPI level
1483
- Improved the documentation
1484
- Node evacuation: don't call IAllocator if node is already empty
1485
- Fixed bug in DRBD8 replace disks on current nodes
1486
- Fixed bug in recreate-disks for DRBD instances
1487
- Moved assertion checking locks in ``gnt-instance replace-disks``
1488
  causing it to abort with not owning the right locks for some situation
1489
- Job queue: Fixed potential race condition when cancelling queued jobs
1490
- Fixed off-by-one bug in job serial generation
1491
- ``gnt-node volumes``: Fix instance names
1492
- Fixed aliases in bash completion
1493
- Fixed a bug in reopening log files after being sent a SIGHUP
1494
- Added a flag to burnin to allow specifying VCPU count
1495
- Bugfixes to non-root Ganeti configuration
1496

    
1497

    
1498
Version 2.4.2
1499
-------------
1500

    
1501
*(Released Thu, 12 May 2011)*
1502

    
1503
Many bug-fixes and a few new small features:
1504

    
1505
- Fixed a bug related to log opening failures
1506
- Fixed a bug in instance listing with orphan instances
1507
- Fixed a bug which prevented resetting the cluster-level node parameter
1508
  ``oob_program`` to the default
1509
- Many fixes related to the ``cluster-merge`` tool
1510
- Fixed a race condition in the lock monitor, which caused failures
1511
  during (at least) creation of many instances in parallel
1512
- Improved output for gnt-job info
1513
- Removed the quiet flag on some ssh calls which prevented debugging
1514
  failures
1515
- Improved the N+1 failure messages in cluster verify by actually
1516
  showing the memory values (needed and available)
1517
- Increased lock attempt timeouts so that when executing long operations
1518
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
1519
  too early and thus prevent the use of the 'fair' mechanism
1520
- Changed instance query data (``gnt-instance info``) to not acquire
1521
  locks unless needed, thus allowing its use on locked instance if only
1522
  static information is asked for
1523
- Improved behaviour with filesystems that do not support rename on an
1524
  opened file
1525
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
1526
  kept locks on all nodes during the wipe, which is unneeded
1527
- Fixed ``gnt-watcher`` handling of errors during hooks execution
1528
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
1529
  10GiB) which caused the wipe to fail right at the end in some cases
1530
- Fixed master IP activation when doing master failover with no-voting
1531
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
1532
  the master node itself
1533
- Fixed potential data-loss in under disk full conditions, where Ganeti
1534
  wouldn't check correctly the return code and would consider
1535
  partially-written files 'correct'
1536
- Fixed bug related to multiple VGs and DRBD disk replacing
1537
- Added new disk parameter ``metavg`` that allows placement of the meta
1538
  device for DRBD in a different volume group
1539
- Fixed error handling in the node daemon when the system libc doesn't
1540
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
1541
- Fixed lock release during replace-disks, which kept cluster-wide locks
1542
  when doing disk replaces with an iallocator script
1543
- Added check for missing bridges in cluster verify
1544
- Handle EPIPE errors while writing to the terminal better, so that
1545
  piping the output to e.g. ``less`` doesn't cause a backtrace
1546
- Fixed rare case where a ^C during Luxi calls could have been
1547
  interpreted as server errors, instead of simply terminating
1548
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
1549
  assign-nodes``)
1550
- Added a few more parameters to the KVM hypervisor, allowing a second
1551
  CDROM, custom disk type for CDROMs and a floppy image
1552
- Removed redundant message in instance rename when the name is given
1553
  already as a FQDN
1554
- Added option to ``gnt-instance recreate-disks`` to allow creating the
1555
  disks on new nodes, allowing recreation when the original instance
1556
  nodes are completely gone
1557
- Added option when converting disk templates to DRBD to skip waiting
1558
  for the resync, in order to make the instance available sooner
1559
- Added two new variables to the OS scripts environment (containing the
1560
  instance's nodes)
1561
- Made the root_path and optional parameter for the xen-pvm hypervisor,
1562
  to allow use of ``pvgrub`` as bootloader
1563
- Changed the instance memory modifications to only check out-of-memory
1564
  conditions on memory increases, and turned the secondary node warnings
1565
  into errors (they can still be overridden via ``--force``)
1566
- Fixed the handling of a corner case when the Python installation gets
1567
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
1568
  to execute a command that doesn't exist
1569
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
1570
  node of the instance returned failures during instance shutdown; this
1571
  adds the option ``--ignore-consistency`` to gnt-instance move
1572

    
1573
And as usual, various improvements to the error messages, documentation
1574
and man pages.
1575

    
1576

    
1577
Version 2.4.1
1578
-------------
1579

    
1580
*(Released Wed, 09 Mar 2011)*
1581

    
1582
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
1583
the RAPI users file if run twice (even with ``--dry-run``).
1584

    
1585
The release fixes that bug (nothing else changed).
1586

    
1587

    
1588
Version 2.4.0
1589
-------------
1590

    
1591
*(Released Mon, 07 Mar 2011)*
1592

    
1593
Final 2.4.0 release. Just a few small fixes:
1594

    
1595
- Fixed RAPI node evacuate
1596
- Fixed the kvm-ifup script
1597
- Fixed internal error handling for special job cases
1598
- Updated man page to specify the escaping feature for options
1599

    
1600

    
1601
Version 2.4.0 rc3
1602
-----------------
1603

    
1604
*(Released Mon, 28 Feb 2011)*
1605

    
1606
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1607
that this feature wiped the disks of the wrong instance, leading to loss
1608
of data.
1609

    
1610
Other changes:
1611

    
1612
- Fixed title of query field containing instance name
1613
- Expanded the glossary in the documentation
1614
- Fixed one unittest (internal issue)
1615

    
1616

    
1617
Version 2.4.0 rc2
1618
-----------------
1619

    
1620
*(Released Mon, 21 Feb 2011)*
1621

    
1622
A number of bug fixes plus just a couple functionality changes.
1623

    
1624
On the user-visible side, the ``gnt-* list`` command output has changed
1625
with respect to "special" field states. The current rc1 style of display
1626
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1627
the default output mode special fields states are displayed as follows:
1628

    
1629
- Offline resource: ``*``
1630
- Unavailable/not applicable: ``-``
1631
- Data missing (RPC failure): ``?``
1632
- Unknown field: ``??``
1633

    
1634
Another user-visible change is the addition of ``--force-join`` to
1635
``gnt-node add``.
1636

    
1637
As for bug fixes:
1638

    
1639
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
1640
- Fixed regression in RAPI/instance reinstall where all parameters were
1641
  required (instead of optional)
1642
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1643
- Fixed iallocator usage (offline nodes were not considered offline)
1644
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1645
- Fixed hypervisor and OS parameter validation with respect to
1646
  non-vm_capable nodes
1647
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1648
  cosmetic)
1649
- Fixed ``tools/listrunner`` with respect to agent-based usage
1650

    
1651

    
1652
Version 2.4.0 rc1
1653
-----------------
1654

    
1655
*(Released Fri,  4 Feb 2011)*
1656

    
1657
Many changes and fixes since the beta1 release. While there were some
1658
internal changes, the code has been mostly stabilised for the RC
1659
release.
1660

    
1661
Note: the dumb allocator was removed in this release, as it was not kept
1662
up-to-date with the IAllocator protocol changes. It is recommended to
1663
use the ``hail`` command from the ganeti-htools package.
1664

    
1665
Note: the 2.4 and up versions of Ganeti are not compatible with the
1666
0.2.x branch of ganeti-htools. You need to upgrade to
1667
ganeti-htools-0.3.0 (or later).
1668

    
1669
Regressions fixed from 2.3
1670
~~~~~~~~~~~~~~~~~~~~~~~~~~
1671

    
1672
- Fixed the ``gnt-cluster verify-disks`` command
1673
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1674
  serially on nodes)
1675
- Fixed disk adoption breakage
1676
- Fixed wrong headers in instance listing for field aliases
1677

    
1678
Other bugs fixed
1679
~~~~~~~~~~~~~~~~
1680

    
1681
- Fixed corner case in KVM handling of NICs
1682
- Fixed many cases of wrong handling of non-vm_capable nodes
1683
- Fixed a bug where a missing instance symlink was not possible to
1684
  recreate with any ``gnt-*`` command (now ``gnt-instance
1685
  activate-disks`` does it)
1686
- Fixed the volume group name as reported by ``gnt-cluster
1687
  verify-disks``
1688
- Increased timeouts for the import-export code, hopefully leading to
1689
  fewer aborts due network or instance timeouts
1690
- Fixed bug in ``gnt-node list-storage``
1691
- Fixed bug where not all daemons were started on cluster
1692
  initialisation, but only at the first watcher run
1693
- Fixed many bugs in the OOB implementation
1694
- Fixed watcher behaviour in presence of instances with offline
1695
  secondaries
1696
- Fixed instance list output for instances running on the wrong node
1697
- a few fixes to the cluster-merge tool, but it still cannot merge
1698
  multi-node groups (currently it is not recommended to use this tool)
1699

    
1700

    
1701
Improvements
1702
~~~~~~~~~~~~
1703

    
1704
- Improved network configuration for the KVM hypervisor
1705
- Added e1000 as a supported NIC for Xen-HVM
1706
- Improved the lvmstrap tool to also be able to use partitions, as
1707
  opposed to full disks
1708
- Improved speed of disk wiping (the cluster parameter
1709
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1710
  of instance creations
1711
- Added documentation for the OS parameters
1712
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1713
  hypervisor is not responding
1714
- Added display of blacklisted and hidden OS information in
1715
  ``gnt-cluster info``
1716
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1717
  NIC and node parameters, which might create problems with currently
1718
  invalid (but undetected) configuration files, but prevents validation
1719
  failures when unrelated parameters are modified
1720
- Changed cluster initialisation to wait for the master daemon to become
1721
  available
1722
- Expanded the RAPI interface:
1723

    
1724
  - Added config redistribution resource
1725
  - Added activation/deactivation of instance disks
1726
  - Added export of console information
1727

    
1728
- Implemented log file reopening on SIGHUP, which allows using
1729
  logrotate(8) for the Ganeti log files
1730
- Added a basic OOB helper script as an example
1731

    
1732

    
1733
Version 2.4.0 beta1
1734
-------------------
1735

    
1736
*(Released Fri, 14 Jan 2011)*
1737

    
1738
User-visible
1739
~~~~~~~~~~~~
1740

    
1741
- Fixed timezone issues when formatting timestamps
1742
- Added support for node groups, available via ``gnt-group`` and other
1743
  commands
1744
- Added out-of-band framework and management, see :doc:`design
1745
  document <design-oob>`
1746
- Removed support for roman numbers from ``gnt-node list`` and
1747
  ``gnt-instance list``.
1748
- Allowed modification of master network interface via ``gnt-cluster
1749
  modify --master-netdev``
1750
- Accept offline secondaries while shutting down instance disks
1751
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1752
- Added support for multiple LVM volume groups
1753
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1754
  requested
1755
- Added commands to list available fields:
1756

    
1757
  - ``gnt-node list-fields``
1758
  - ``gnt-group list-fields``
1759
  - ``gnt-instance list-fields``
1760

    
1761
- Updated documentation and man pages
1762

    
1763
Integration
1764
~~~~~~~~~~~
1765

    
1766
- Moved ``rapi_users`` file into separate directory, now named
1767
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1768
  symlink
1769
- Added new tool for running commands on many machines,
1770
  ``tools/ganeti-listrunner``
1771
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1772
  improving the ``gnt-instance console`` output
1773
- Allowed customisation of disk index separator at ``configure`` time
1774
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1775
- Added support for non-partitioned md disks in ``lvmstrap``
1776
- Added script to gracefully power off KVM instances
1777
- Split ``utils`` module into smaller parts
1778
- Changed query operations to return more detailed information, e.g.
1779
  whether an information is unavailable due to an offline node. To use
1780
  this new functionality, the LUXI call ``Query`` must be used. Field
1781
  information is now stored by the master daemon and can be retrieved
1782
  using ``QueryFields``. Instances, nodes and groups can also be queried
1783
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1784
  exposed via RAPI). The following commands make use of this
1785
  infrastructure change:
1786

    
1787
  - ``gnt-group list``
1788
  - ``gnt-group list-fields``
1789
  - ``gnt-node list``
1790
  - ``gnt-node list-fields``
1791
  - ``gnt-instance list``
1792
  - ``gnt-instance list-fields``
1793
  - ``gnt-debug locks``
1794

    
1795
Remote API
1796
~~~~~~~~~~
1797

    
1798
- New RAPI resources (see :doc:`rapi`):
1799

    
1800
  - ``/2/modify``
1801
  - ``/2/groups``
1802
  - ``/2/groups/[group_name]``
1803
  - ``/2/groups/[group_name]/assign-nodes``
1804
  - ``/2/groups/[group_name]/modify``
1805
  - ``/2/groups/[group_name]/rename``
1806
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1807

    
1808
- RAPI changes:
1809

    
1810
  - Implemented ``no_install`` for instance creation
1811
  - Implemented OS parameters for instance reinstallation, allowing
1812
    use of special settings on reinstallation (e.g. for preserving data)
1813

    
1814
Misc
1815
~~~~
1816

    
1817
- Added IPv6 support in import/export
1818
- Pause DRBD synchronization while wiping disks on instance creation
1819
- Updated unittests and QA scripts
1820
- Improved network parameters passed to KVM
1821
- Converted man pages from docbook to reStructuredText
1822

    
1823

    
1824
Version 2.3.1
1825
-------------
1826

    
1827
*(Released Mon, 20 Dec 2010)*
1828

    
1829
Released version 2.3.1~rc1 without any changes.
1830

    
1831

    
1832
Version 2.3.1 rc1
1833
-----------------
1834

    
1835
*(Released Wed, 1 Dec 2010)*
1836

    
1837
- impexpd: Disable OpenSSL compression in socat if possible (backport
1838
  from master, commit e90739d625b, see :doc:`installation guide
1839
  <install-quick>` for details)
1840
- Changed unittest coverage report to exclude test scripts
1841
- Added script to check version format
1842

    
1843

    
1844
Version 2.3.0
1845
-------------
1846

    
1847
*(Released Wed, 1 Dec 2010)*
1848

    
1849
Released version 2.3.0~rc1 without any changes.
1850

    
1851

    
1852
Version 2.3.0 rc1
1853
-----------------
1854

    
1855
*(Released Fri, 19 Nov 2010)*
1856

    
1857
A number of bugfixes and documentation updates:
1858

    
1859
- Update ganeti-os-interface documentation
1860
- Fixed a bug related to duplicate MACs or similar items which should be
1861
  unique
1862
- Fix breakage in OS state modify
1863
- Reinstall instance: disallow offline secondaries (fixes bug related to
1864
  OS changing but reinstall failing)
1865
- plus all the other fixes between 2.2.1 and 2.2.2
1866

    
1867

    
1868
Version 2.3.0 rc0
1869
-----------------
1870

    
1871
*(Released Tue, 2 Nov 2010)*
1872

    
1873
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1874
- Fixed master failover race with watcher
1875
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1876
  configuration
1877
- Accept previously stopped instance for export with instance removal
1878
- Simplify and extend the environment variables for instance OS scripts
1879
- Added new node flags, ``master_capable`` and ``vm_capable``
1880
- Added optional instance disk wiping prior during allocation. This is a
1881
  cluster-wide option and can be set/modified using
1882
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1883
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1884
  :doc:`install-quick`
1885
- Added a new watcher option (``--ignore-pause``)
1886
- Added option to ignore offline node on instance start/stop
1887
  (``--ignore-offline``)
1888
- Allow overriding OS parameters with ``gnt-instance reinstall``
1889
- Added ability to change node's secondary IP address using ``gnt-node
1890
  modify``
1891
- Implemented privilege separation for all daemons except
1892
  ``ganeti-noded``, see ``configure`` options
1893
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1894
  verify``
1895
- Implemented job priorities (see ``ganeti(7)`` manpage)
1896
- Ignore failures while shutting down instances during failover from
1897
  offline node
1898
- Exit daemon's bootstrap process only once daemon is ready
1899
- Export more information via ``LUInstanceQuery``/remote API
1900
- Improved documentation, QA and unittests
1901
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1902
  restart if the file was created or changed
1903
- Added LUXI protocol version sent with each request and response,
1904
  allowing detection of server/client mismatches
1905
- Moved the Python scripts among gnt-* and ganeti-* into modules
1906
- Moved all code related to setting up SSH to an external script,
1907
  ``setup-ssh``
1908
- Infrastructure changes for node group support in future versions
1909

    
1910

    
1911
Version 2.2.2
1912
-------------
1913

    
1914
*(Released Fri, 19 Nov 2010)*
1915

    
1916
A few small bugs fixed, and some improvements to the build system:
1917

    
1918
- Fix documentation regarding conversion to drbd
1919
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1920
  -B``)
1921
- Fix error handling in node modify with multiple changes
1922
- Allow remote imports without checked names
1923

    
1924

    
1925
Version 2.2.1
1926
-------------
1927

    
1928
*(Released Tue, 19 Oct 2010)*
1929

    
1930
- Disable SSL session ID cache in RPC client
1931

    
1932

    
1933
Version 2.2.1 rc1
1934
-----------------
1935

    
1936
*(Released Thu, 14 Oct 2010)*
1937

    
1938
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1939
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1940
  with GnuTLS
1941
- Fix problems with interaction between Curl and Python's HTTP server,
1942
  resulting in increased speed in many RPC calls
1943
- Improve our release script to prevent breakage with older aclocal and
1944
  Python 2.6
1945

    
1946

    
1947
Version 2.2.1 rc0
1948
-----------------
1949

    
1950
*(Released Thu, 7 Oct 2010)*
1951

    
1952
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1953
  value retrieved from master
1954
- Added support for blacklisted or hidden OS definitions
1955
- Added simple lock monitor (accessible via (``gnt-debug locks``)
1956
- Added support for -mem-path in KVM hypervisor abstraction layer
1957
- Allow overriding instance parameters in tool for inter-cluster
1958
  instance moves (``tools/move-instance``)
1959
- Improved opcode summaries (e.g. in ``gnt-job list``)
1960
- Improve consistency of OS listing by sorting it
1961
- Documentation updates
1962

    
1963

    
1964
Version 2.2.0.1
1965
---------------
1966

    
1967
*(Released Fri, 8 Oct 2010)*
1968

    
1969
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
1970

    
1971

    
1972
Version 2.2.0
1973
-------------
1974

    
1975
*(Released Mon, 4 Oct 2010)*
1976

    
1977
- Fixed regression in ``gnt-instance rename``
1978

    
1979

    
1980
Version 2.2.0 rc2
1981
-----------------
1982

    
1983
*(Released Wed, 22 Sep 2010)*
1984

    
1985
- Fixed OS_VARIANT variable for OS scripts
1986
- Fixed cluster tag operations via RAPI
1987
- Made ``setup-ssh`` exit with non-zero code if an error occurred
1988
- Disabled RAPI CA checks in watcher
1989

    
1990

    
1991
Version 2.2.0 rc1
1992
-----------------
1993

    
1994
*(Released Mon, 23 Aug 2010)*
1995

    
1996
- Support DRBD versions of the format "a.b.c.d"
1997
- Updated manpages
1998
- Re-introduce support for usage from multiple threads in RAPI client
1999
- Instance renames and modify via RAPI
2000
- Work around race condition between processing and archival in job
2001
  queue
2002
- Mark opcodes following failed one as failed, too
2003
- Job field ``lock_status`` was removed due to difficulties making it
2004
  work with the changed job queue in Ganeti 2.2; a better way to monitor
2005
  locks is expected for a later 2.2.x release
2006
- Fixed dry-run behaviour with many commands
2007
- Support ``ssh-agent`` again when adding nodes
2008
- Many additional bugfixes
2009

    
2010

    
2011
Version 2.2.0 rc0
2012
-----------------
2013

    
2014
*(Released Fri, 30 Jul 2010)*
2015

    
2016
Important change: the internal RPC mechanism between Ganeti nodes has
2017
changed from using a home-grown http library (based on the Python base
2018
libraries) to use the PycURL library. This requires that PycURL is
2019
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
2020
against GnuTLS by default. cURL's support for GnuTLS had known issues
2021
before cURL 7.21.0 and we recommend using the latest cURL release or
2022
linking against OpenSSL. Most other distributions already link PycURL
2023
and cURL against OpenSSL. The command::
2024

    
2025
  python -c 'import pycurl; print pycurl.version'
2026

    
2027
can be used to determine the libraries PycURL and cURL are linked
2028
against.
2029

    
2030
Other significant changes:
2031

    
2032
- Rewrote much of the internals of the job queue, in order to achieve
2033
  better parallelism; this decouples job query operations from the job
2034
  processing, and it should allow much nicer behaviour of the master
2035
  daemon under load, and it also has uncovered some long-standing bugs
2036
  related to the job serialisation (now fixed)
2037
- Added a default iallocator setting to the cluster parameters,
2038
  eliminating the need to always pass nodes or an iallocator for
2039
  operations that require selection of new node(s)
2040
- Added experimental support for the LXC virtualization method
2041
- Added support for OS parameters, which allows the installation of
2042
  instances to pass parameter to OS scripts in order to customise the
2043
  instance
2044
- Added a hypervisor parameter controlling the migration type (live or
2045
  non-live), since hypervisors have various levels of reliability; this
2046
  has renamed the 'live' parameter to 'mode'
2047
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
2048
  logical volumes, meaning that cluster verify will ignore them and not
2049
  flag their presence as errors
2050
- The watcher will now reset the error count for failed instances after
2051
  8 hours, thus allowing self-healing if the problem that caused the
2052
  instances to be down/fail to start has cleared in the meantime
2053
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
2054
  check for, and warn, if the drbd module parameter ``usermode_helper``
2055
  is not consistent with the cluster-wide setting; this is needed to
2056
  make diagnose easier of failed drbd creations
2057
- Started adding base IPv6 support, but this is not yet
2058
  enabled/available for use
2059
- Rename operations (cluster, instance) will now return the new name,
2060
  which is especially useful if a short name was passed in
2061
- Added support for instance migration in RAPI
2062
- Added a tool to pre-configure nodes for the SSH setup, before joining
2063
  them to the cluster; this will allow in the future a simplified model
2064
  for node joining (but not yet fully enabled in 2.2); this needs the
2065
  paramiko python library
2066
- Fixed handling of name-resolving errors
2067
- Fixed consistency of job results on the error path
2068
- Fixed master-failover race condition when executed multiple times in
2069
  sequence
2070
- Fixed many bugs related to the job queue (mostly introduced during the
2071
  2.2 development cycle, so not all are impacting 2.1)
2072
- Fixed instance migration with missing disk symlinks
2073
- Fixed handling of unknown jobs in ``gnt-job archive``
2074
- And many other small fixes/improvements
2075

    
2076
Internal changes:
2077

    
2078
- Enhanced both the unittest and the QA coverage
2079
- Switched the opcode validation to a generic model, and extended the
2080
  validation to all opcode parameters
2081
- Changed more parts of the code that write shell scripts to use the
2082
  same class for this
2083
- Switched the master daemon to use the asyncore library for the Luxi
2084
  server endpoint
2085

    
2086

    
2087
Version 2.2.0 beta0
2088
-------------------
2089

    
2090
*(Released Thu, 17 Jun 2010)*
2091

    
2092
- Added tool (``move-instance``) and infrastructure to move instances
2093
  between separate clusters (see :doc:`separate documentation
2094
  <move-instance>` and :doc:`design document <design-2.2>`)
2095
- Added per-request RPC timeout
2096
- RAPI now requires a Content-Type header for requests with a body (e.g.
2097
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
2098
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
2099
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
2100
  reachable
2101
- Implemented initial support for running Ganeti daemons as separate
2102
  users, see configure-time flags ``--with-user-prefix`` and
2103
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
2104
  time)
2105
- Instances can be removed after export (``gnt-backup export
2106
  --remove-instance``)
2107
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
2108
  key (instead of 1024 bit)
2109
- Added new cluster configuration file for cluster domain secret
2110
- Import/export now use SSL instead of SSH
2111
- Added support for showing estimated time when exporting an instance,
2112
  see the ``ganeti-os-interface(7)`` manpage and look for
2113
  ``EXP_SIZE_FD``
2114

    
2115

    
2116
Version 2.1.8
2117
-------------
2118

    
2119
*(Released Tue, 16 Nov 2010)*
2120

    
2121
Some more bugfixes. Unless critical bugs occur, this will be the last
2122
2.1 release:
2123

    
2124
- Fix case of MAC special-values
2125
- Fix mac checker regex
2126
- backend: Fix typo causing "out of range" error
2127
- Add missing --units in gnt-instance list man page
2128

    
2129

    
2130
Version 2.1.7
2131
-------------
2132

    
2133
*(Released Tue, 24 Aug 2010)*
2134

    
2135
Bugfixes only:
2136
  - Don't ignore secondary node silently on non-mirrored disk templates
2137
    (issue 113)
2138
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
2139
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
2140
  - Properly document the usb_mouse parameter
2141
  - Fix path in ganeti-rapi(8) (issue 116)
2142
  - Adjust error message when the ganeti user's .ssh directory is
2143
    missing
2144
  - Add same-node-check when changing the disk template to drbd
2145

    
2146

    
2147
Version 2.1.6
2148
-------------
2149

    
2150
*(Released Fri, 16 Jul 2010)*
2151

    
2152
Bugfixes only:
2153
  - Add an option to only select some reboot types during qa/burnin.
2154
    (on some hypervisors consequent reboots are not supported)
2155
  - Fix infrequent race condition in master failover. Sometimes the old
2156
    master ip address would be still detected as up for a short time
2157
    after it was removed, causing failover to fail.
2158
  - Decrease mlockall warnings when the ctypes module is missing. On
2159
    Python 2.4 we support running even if no ctypes module is installed,
2160
    but we were too verbose about this issue.
2161
  - Fix building on old distributions, on which man doesn't have a
2162
    --warnings option.
2163
  - Fix RAPI not to ignore the MAC address on instance creation
2164
  - Implement the old instance creation format in the RAPI client.
2165

    
2166

    
2167
Version 2.1.5
2168
-------------
2169

    
2170
*(Released Thu, 01 Jul 2010)*
2171

    
2172
A small bugfix release:
2173
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
2174
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
2175
    a non-existing option
2176
  - Fix instance create: the --force-variant option was ignored
2177
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
2178
  - Fix modify node storage with non-FQDN arguments
2179
  - Fix RAPI client to authenticate under Python 2.6 when used
2180
    for more than 5 requests needing authentication
2181
  - Fix gnt-instance modify -t (storage) giving a wrong error message
2182
    when converting a non-shutdown drbd instance to plain
2183

    
2184

    
2185
Version 2.1.4
2186
-------------
2187

    
2188
*(Released Fri, 18 Jun 2010)*
2189

    
2190
A small bugfix release:
2191

    
2192
  - Fix live migration of KVM instances started with older Ganeti
2193
    versions which had fewer hypervisor parameters
2194
  - Fix gnt-instance grow-disk on down instances
2195
  - Fix an error-reporting bug during instance migration
2196
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
2197
    silently ignoring broken ones
2198
  - Fix an RPC error reporting bug affecting, for example, RAPI client
2199
    users
2200
  - Fix bug triggered by different API version os-es on different nodes
2201
  - Fix a bug in instance startup with custom hvparams: OS level
2202
    parameters would fail to be applied.
2203
  - Fix the RAPI client under Python 2.6 (but more work is needed to
2204
    make it work completely well with OpenSSL)
2205
  - Fix handling of errors when resolving names from DNS
2206

    
2207

    
2208
Version 2.1.3
2209
-------------
2210

    
2211
*(Released Thu, 3 Jun 2010)*
2212

    
2213
A medium sized development cycle. Some new features, and some
2214
fixes/small improvements/cleanups.
2215

    
2216
Significant features
2217
~~~~~~~~~~~~~~~~~~~~
2218

    
2219
The node deamon now tries to mlock itself into memory, unless the
2220
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
2221
its logs, and falls back to console logging. This allows emergency
2222
features such as ``gnt-node powercycle`` to work even in the event of a
2223
broken node disk (tested offlining the disk hosting the node's
2224
filesystem and dropping its memory caches; don't try this at home)
2225

    
2226
KVM: add vhost-net acceleration support. It can be tested with a new
2227
enough version of the kernel and of qemu-kvm.
2228

    
2229
KVM: Add instance chrooting feature. If you use privilege dropping for
2230
your VMs you can also now force them to chroot to an empty directory,
2231
before starting the emulated guest.
2232

    
2233
KVM: Add maximum migration bandwith and maximum downtime tweaking
2234
support (requires a new-enough version of qemu-kvm).
2235

    
2236
Cluster verify will now warn if the master node doesn't have the master
2237
ip configured on it.
2238

    
2239
Add a new (incompatible) instance creation request format to RAPI which
2240
supports all parameters (previously only a subset was supported, and it
2241
wasn't possible to extend the old format to accomodate all the new
2242
features. The old format is still supported, and a client can check for
2243
this feature, before using it, by checking for its presence in the
2244
``features`` RAPI resource.
2245

    
2246
Now with ancient latin support. Try it passing the ``--roman`` option to
2247
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
2248
(requires the python-roman module to be installed, in order to work).
2249

    
2250
Other changes
2251
~~~~~~~~~~~~~
2252

    
2253
As usual many internal code refactorings, documentation updates, and
2254
such. Among others:
2255

    
2256
  - Lots of improvements and cleanups to the experimental Remote API
2257
    (RAPI) client library.
2258
  - A new unit test suite for the core daemon libraries.
2259
  - A fix to creating missing directories makes sure the umask is not
2260
    applied anymore. This enforces the same directory permissions
2261
    everywhere.
2262
  - Better handling terminating daemons with ctrl+c (used when running
2263
    them in debugging mode).
2264
  - Fix a race condition in live migrating a KVM instance, when stat()
2265
    on the old proc status file returned EINVAL, which is an unexpected
2266
    value.
2267
  - Fixed manpage checking with newer man and utf-8 charachters. But now
2268
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
2269

    
2270

    
2271
Version 2.1.2.1
2272
---------------
2273

    
2274
*(Released Fri, 7 May 2010)*
2275

    
2276
Fix a bug which prevented untagged KVM instances from starting.
2277

    
2278

    
2279
Version 2.1.2
2280
-------------
2281

    
2282
*(Released Fri, 7 May 2010)*
2283

    
2284
Another release with a long development cycle, during which many
2285
different features were added.
2286

    
2287
Significant features
2288
~~~~~~~~~~~~~~~~~~~~
2289

    
2290
The KVM hypervisor now can run the individual instances as non-root, to
2291
reduce the impact of a VM being hijacked due to bugs in the
2292
hypervisor. It is possible to run all instances as a single (non-root)
2293
user, to manually specify a user for each instance, or to dynamically
2294
allocate a user out of a cluster-wide pool to each instance, with the
2295
guarantee that no two instances will run under the same user ID on any
2296
given node.
2297

    
2298
An experimental RAPI client library, that can be used standalone
2299
(without the other Ganeti libraries), is provided in the source tree as
2300
``lib/rapi/client.py``. Note this client might change its interface in
2301
the future, as we iterate on its capabilities.
2302

    
2303
A new command, ``gnt-cluster renew-crypto`` has been added to easily
2304
replace the cluster's certificates and crypto keys. This might help in
2305
case they have been compromised, or have simply expired.
2306

    
2307
A new disk option for instance creation has been added that allows one
2308
to "adopt" currently existing logical volumes, with data
2309
preservation. This should allow easier migration to Ganeti from
2310
unmanaged (or managed via other software) instances.
2311

    
2312
Another disk improvement is the possibility to convert between redundant
2313
(DRBD) and plain (LVM) disk configuration for an instance. This should
2314
allow better scalability (starting with one node and growing the
2315
cluster, or shrinking a two-node cluster to one node).
2316

    
2317
A new feature that could help with automated node failovers has been
2318
implemented: if a node sees itself as offline (by querying the master
2319
candidates), it will try to shutdown (hard) all instances and any active
2320
DRBD devices. This reduces the risk of duplicate instances if an
2321
external script automatically failovers the instances on such nodes. To
2322
enable this, the cluster parameter ``maintain_node_health`` should be
2323
enabled; in the future this option (per the name) will enable other
2324
automatic maintenance features.
2325

    
2326
Instance export/import now will reuse the original instance
2327
specifications for all parameters; that means exporting an instance,
2328
deleting it and the importing it back should give an almost identical
2329
instance. Note that the default import behaviour has changed from
2330
before, where it created only one NIC; now it recreates the original
2331
number of NICs.
2332

    
2333
Cluster verify has added a few new checks: SSL certificates validity,
2334
/etc/hosts consistency across the cluster, etc.
2335

    
2336
Other changes
2337
~~~~~~~~~~~~~
2338

    
2339
As usual, many internal changes were done, documentation fixes,
2340
etc. Among others:
2341

    
2342
- Fixed cluster initialization with disabled cluster storage (regression
2343
  introduced in 2.1.1)
2344
- File-based storage supports growing the disks
2345
- Fixed behaviour of node role changes
2346
- Fixed cluster verify for some corner cases, plus a general rewrite of
2347
  cluster verify to allow future extension with more checks
2348
- Fixed log spamming by watcher and node daemon (regression introduced
2349
  in 2.1.1)
2350
- Fixed possible validation issues when changing the list of enabled
2351
  hypervisors
2352
- Fixed cleanup of /etc/hosts during node removal
2353
- Fixed RAPI response for invalid methods
2354
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
2355
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
2356
  from ide disks, etc.)
2357
- Allow OS changes without re-installation (to record a changed OS
2358
  outside of Ganeti, or to allow OS renames)
2359
- Allow instance creation without OS installation (useful for example if
2360
  the OS will be installed manually, or restored from a backup not in
2361
  Ganeti format)
2362
- Implemented option to make cluster ``copyfile`` use the replication
2363
  network
2364
- Added list of enabled hypervisors to ssconf (possibly useful for
2365
  external scripts)
2366
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
2367
  1.2 clusters
2368
- A partial form of node re-IP is possible via node readd, which now
2369
  allows changed node primary IP
2370
- Command line utilities now show an informational message if the job is
2371
  waiting for a lock
2372
- The logs of the master daemon now show the PID/UID/GID of the
2373
  connected client
2374

    
2375

    
2376
Version 2.1.1
2377
-------------
2378

    
2379
*(Released Fri, 12 Mar 2010)*
2380

    
2381
During the 2.1.0 long release candidate cycle, a lot of improvements and
2382
changes have accumulated with were released later as 2.1.1.
2383

    
2384
Major changes
2385
~~~~~~~~~~~~~
2386

    
2387
The node evacuate command (``gnt-node evacuate``) was significantly
2388
rewritten, and as such the IAllocator protocol was changed - a new
2389
request type has been added. This unfortunate change during a stable
2390
series is designed to improve performance of node evacuations; on
2391
clusters with more than about five nodes and which are well-balanced,
2392
evacuation should proceed in parallel for all instances of the node
2393
being evacuated. As such, any existing IAllocator scripts need to be
2394
updated, otherwise the above command will fail due to the unknown
2395
request. The provided "dumb" allocator has not been updated; but the
2396
ganeti-htools package supports the new protocol since version 0.2.4.
2397

    
2398
Another important change is increased validation of node and instance
2399
names. This might create problems in special cases, if invalid host
2400
names are being used.
2401

    
2402
Also, a new layer of hypervisor parameters has been added, that sits at
2403
OS level between the cluster defaults and the instance ones. This allows
2404
customisation of virtualization parameters depending on the installed
2405
OS. For example instances with OS 'X' may have a different KVM kernel
2406
(or any other parameter) than the cluster defaults. This is intended to
2407
help managing a multiple OSes on the same cluster, without manual
2408
modification of each instance's parameters.
2409

    
2410
A tool for merging clusters, ``cluster-merge``, has been added in the
2411
tools sub-directory.
2412

    
2413
Bug fixes
2414
~~~~~~~~~
2415

    
2416
- Improved the int/float conversions that should make the code more
2417
  robust in face of errors from the node daemons
2418
- Fixed the remove node code in case of internal configuration errors
2419
- Fixed the node daemon behaviour in face of inconsistent queue
2420
  directory (e.g. read-only file-system where we can't open the files
2421
  read-write, etc.)
2422
- Fixed the behaviour of gnt-node modify for master candidate demotion;
2423
  now it either aborts cleanly or, if given the new "auto_promote"
2424
  parameter, will automatically promote other nodes as needed
2425
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
2426
  completely prevent Ganeti from working
2427
- Fixed bug for instance export when not all disks were successfully
2428
  exported
2429
- Fixed behaviour of node add when the new node is slow in starting up
2430
  the node daemon
2431
- Fixed handling of signals in the LUXI client, which should improve
2432
  behaviour of command-line scripts
2433
- Added checks for invalid node/instance names in the configuration (now
2434
  flagged during cluster verify)
2435
- Fixed watcher behaviour for disk activation errors
2436
- Fixed two potentially endless loops in http library, which led to the
2437
  RAPI daemon hanging and consuming 100% CPU in some cases
2438
- Fixed bug in RAPI daemon related to hashed passwords
2439
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
2440
  instances
2441
- Enhanced compatibility with non-Debian OSes, but not using absolute
2442
  path in some commands and allowing customisation of the ssh
2443
  configuration directory
2444
- Fixed possible future issue with new Python versions by abiding to the
2445
  proper use of ``__slots__`` attribute on classes
2446
- Added checks that should prevent directory traversal attacks
2447
- Many documentation fixes based on feedback from users
2448

    
2449
New features
2450
~~~~~~~~~~~~
2451

    
2452
- Added an "early_release" more for instance replace disks and node
2453
  evacuate, where we release locks earlier and thus allow higher
2454
  parallelism within the cluster
2455
- Added watcher hooks, intended to allow the watcher to restart other
2456
  daemons (e.g. from the ganeti-nbma project), but they can be used of
2457
  course for any other purpose
2458
- Added a compile-time disable for DRBD barriers, to increase
2459
  performance if the administrator trusts the power supply or the
2460
  storage system to not lose writes
2461
- Added the option of using syslog for logging instead of, or in
2462
  addition to, Ganeti's own log files
2463
- Removed boot restriction for paravirtual NICs for KVM, recent versions
2464
  can indeed boot from a paravirtual NIC
2465
- Added a generic debug level for many operations; while this is not
2466
  used widely yet, it allows one to pass the debug value all the way to
2467
  the OS scripts
2468
- Enhanced the hooks environment for instance moves (failovers,
2469
  migrations) where the primary/secondary nodes changed during the
2470
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
2471
- Enhanced data validations for many user-supplied values; one important
2472
  item is the restrictions imposed on instance and node names, which
2473
  might reject some (invalid) host names
2474
- Add a configure-time option to disable file-based storage, if it's not
2475
  needed; this allows greater security separation between the master
2476
  node and the other nodes from the point of view of the inter-node RPC
2477
  protocol
2478
- Added user notification in interactive tools if job is waiting in the
2479
  job queue or trying to acquire locks
2480
- Added log messages when a job is waiting for locks
2481
- Added filtering by node tags in instance operations which admit
2482
  multiple instances (start, stop, reboot, reinstall)
2483
- Added a new tool for cluster mergers, ``cluster-merge``
2484
- Parameters from command line which are of the form ``a=b,c=d`` can now
2485
  use backslash escapes to pass in values which contain commas,
2486
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
2487
  ``b,c``
2488
- For KVM, the instance name is the first parameter passed to KVM, so
2489
  that it's more visible in the process list
2490

    
2491

    
2492
Version 2.1.0
2493
-------------
2494

    
2495
*(Released Tue, 2 Mar 2010)*
2496

    
2497
Ganeti 2.1 brings many improvements with it. Major changes:
2498

    
2499
- Added infrastructure to ease automated disk repairs
2500
- Added new daemon to export configuration data in a cheaper way than
2501
  using the remote API
2502
- Instance NICs can now be routed instead of being associated with a
2503
  networking bridge
2504
- Improved job locking logic to reduce impact of jobs acquiring multiple
2505
  locks waiting for other long-running jobs
2506

    
2507
In-depth implementation details can be found in the Ganeti 2.1 design
2508
document.
2509

    
2510
Details
2511
~~~~~~~
2512

    
2513
- Added chroot hypervisor
2514
- Added more options to xen-hvm hypervisor (``kernel_path`` and
2515
  ``device_model``)
2516
- Added more options to xen-pvm hypervisor (``use_bootloader``,
2517
  ``bootloader_path`` and ``bootloader_args``)
2518
- Added the ``use_localtime`` option for the xen-hvm and kvm
2519
  hypervisors, and the default value for this has changed to false (in
2520
  2.0 xen-hvm always enabled it)
2521
- Added luxi call to submit multiple jobs in one go
2522
- Added cluster initialization option to not modify ``/etc/hosts``
2523
  file on nodes
2524
- Added network interface parameters
2525
- Added dry run mode to some LUs
2526
- Added RAPI resources:
2527

    
2528
  - ``/2/instances/[instance_name]/info``
2529
  - ``/2/instances/[instance_name]/replace-disks``
2530
  - ``/2/nodes/[node_name]/evacuate``
2531
  - ``/2/nodes/[node_name]/migrate``
2532
  - ``/2/nodes/[node_name]/role``
2533
  - ``/2/nodes/[node_name]/storage``
2534
  - ``/2/nodes/[node_name]/storage/modify``
2535
  - ``/2/nodes/[node_name]/storage/repair``
2536

    
2537
- Added OpCodes to evacuate or migrate all instances on a node
2538
- Added new command to list storage elements on nodes (``gnt-node
2539
  list-storage``) and modify them (``gnt-node modify-storage``)
2540
- Added new ssconf files with master candidate IP address
2541
  (``ssconf_master_candidates_ips``), node primary IP address
2542
  (``ssconf_node_primary_ips``) and node secondary IP address
2543
  (``ssconf_node_secondary_ips``)
2544
- Added ``ganeti-confd`` and a client library to query the Ganeti
2545
  configuration via UDP
2546
- Added ability to run hooks after cluster initialization and before
2547
  cluster destruction
2548
- Added automatic mode for disk replace (``gnt-instance replace-disks
2549
  --auto``)
2550
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
2551
  after catastrophic data-loss
2552
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
2553
  groups
2554
- Added ``gnt-instance move`` command to move instances
2555
- Added ``gnt-cluster watcher`` command to control watcher
2556
- Added ``gnt-node powercycle`` command to powercycle nodes
2557
- Added new job status field ``lock_status``
2558
- Added parseable error codes to cluster verification (``gnt-cluster
2559
  verify --error-codes``) and made output less verbose (use
2560
  ``--verbose`` to restore previous behaviour)
2561
- Added UUIDs to the main config entities (cluster, nodes, instances)
2562
- Added support for OS variants
2563
- Added support for hashed passwords in the Ganeti remote API users file
2564
  (``rapi_users``)
2565
- Added option to specify maximum timeout on instance shutdown
2566
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
2567
- Added new helper script to start and stop Ganeti daemons
2568
  (``daemon-util``), with the intent to reduce the work necessary to
2569
  adjust Ganeti for non-Debian distributions and to start/stop daemons
2570
  from one place
2571
- Added more unittests
2572
- Fixed critical bug in ganeti-masterd startup
2573
- Removed the configure-time ``kvm-migration-port`` parameter, this is
2574
  now customisable at the cluster level for both the KVM and Xen
2575
  hypervisors using the new ``migration_port`` parameter
2576
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
2577
  reinstalling an instance
2578
- Allowed ``@`` in tag names
2579
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
2580
- Many documentation updates
2581
- Distribute hypervisor files on ``gnt-cluster redist-conf``
2582
- ``gnt-instance reinstall`` can now reinstall multiple instances
2583
- Updated many command line parameters
2584
- Introduced new OS API version 15
2585
- No longer support a default hypervisor
2586
- Treat virtual LVs as inexistent
2587
- Improved job locking logic to reduce lock contention
2588
- Match instance and node names case insensitively
2589
- Reimplemented bash completion script to be more complete
2590
- Improved burnin
2591

    
2592

    
2593
Version 2.0.6
2594
-------------
2595

    
2596
*(Released Thu, 4 Feb 2010)*
2597

    
2598
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2599
- Fix a string formatting bug
2600
- Improve safety of the code in some error paths
2601
- Improve data validation in the master of values returned from nodes
2602

    
2603

    
2604
Version 2.0.5
2605
-------------
2606

    
2607
*(Released Thu, 17 Dec 2009)*
2608

    
2609
- Fix security issue due to missing validation of iallocator names; this
2610
  allows local and remote execution of arbitrary executables
2611
- Fix failure of gnt-node list during instance removal
2612
- Ship the RAPI documentation in the archive
2613

    
2614

    
2615
Version 2.0.4
2616
-------------
2617

    
2618
*(Released Wed, 30 Sep 2009)*
2619

    
2620
- Fixed many wrong messages
2621
- Fixed a few bugs related to the locking library
2622
- Fixed MAC checking at instance creation time
2623
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
2624
- Fixed a few issues related to signal handling in both daemons and
2625
  scripts
2626
- Fixed the example startup script provided
2627
- Fixed insserv dependencies in the example startup script (patch from
2628
  Debian)
2629
- Fixed handling of drained nodes in the iallocator framework
2630
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2631
  #528618)
2632
- Fixed error related to invalid job IDs in job polling
2633
- Fixed job/opcode persistence on unclean master shutdown
2634
- Fixed handling of partial job processing after unclean master
2635
  shutdown
2636
- Fixed error reporting from LUs, previously all errors were converted
2637
  into execution errors
2638
- Fixed error reporting from burnin
2639
- Decreased significantly the memory usage of the job queue
2640
- Optimised slightly multi-job submission
2641
- Optimised slightly opcode loading
2642
- Backported the multi-job submit framework from the development
2643
  branch; multi-instance start and stop should be faster
2644
- Added script to clean archived jobs after 21 days; this will reduce
2645
  the size of the queue directory
2646
- Added some extra checks in disk size tracking
2647
- Added an example ethers hook script
2648
- Added a cluster parameter that prevents Ganeti from modifying of
2649
  /etc/hosts
2650
- Added more node information to RAPI responses
2651
- Added a ``gnt-job watch`` command that allows following the ouput of a
2652
  job
2653
- Added a bind-address option to ganeti-rapi
2654
- Added more checks to the configuration verify
2655
- Enhanced the burnin script such that some operations can be retried
2656
  automatically
2657
- Converted instance reinstall to multi-instance model
2658

    
2659

    
2660
Version 2.0.3
2661
-------------
2662

    
2663
*(Released Fri, 7 Aug 2009)*
2664

    
2665
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2666
  to allow using the pre-2.0.2 behaviour in activation, if any existing
2667
  instances have mismatched disk sizes in the configuration
2668
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
2669
  any configuration mismatches for disk sizes
2670
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2671
  failover to work on two-node clusters
2672
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2673
  unusable
2674
- Fixed detection of OS script errors in ``gnt-backup export``
2675
- Fixed exit code of ``gnt-backup export``
2676

    
2677

    
2678
Version 2.0.2
2679
-------------
2680

    
2681
*(Released Fri, 17 Jul 2009)*
2682

    
2683
- Added experimental support for stripped logical volumes; this should
2684
  enhance performance but comes with a higher complexity in the block
2685
  device handling; stripping is only enabled when passing
2686
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2687
  affected even in the non-stripped mode
2688
- Improved resiliency against transient failures at the end of DRBD
2689
  resyncs, and in general of DRBD resync checks
2690
- Fixed a couple of issues with exports and snapshot errors
2691
- Fixed a couple of issues in instance listing
2692
- Added display of the disk size in ``gnt-instance info``
2693
- Fixed checking for valid OSes in instance creation
2694
- Fixed handling of the "vcpus" parameter in instance listing and in
2695
  general of invalid parameters
2696
- Fixed http server library, and thus RAPI, to handle invalid
2697
  username/password combinations correctly; this means that now they
2698
  report unauthorized for queries too, not only for modifications,
2699
  allowing earlier detect of configuration problems
2700
- Added a new "role" node list field, equivalent to the master/master
2701
  candidate/drained/offline flags combinations
2702
- Fixed cluster modify and changes of candidate pool size
2703
- Fixed cluster verify error messages for wrong files on regular nodes
2704
- Fixed a couple of issues with node demotion from master candidate role
2705
- Fixed node readd issues
2706
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2707
- Added a new ``--no-voting`` option for masterfailover to fix failover
2708
  on two-nodes clusters when the former master node is unreachable
2709
- Added instance reinstall over RAPI
2710

    
2711

    
2712
Version 2.0.1
2713
-------------
2714

    
2715
*(Released Tue, 16 Jun 2009)*
2716

    
2717
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2718
  allow re-adding the start in single-user option (regression from 1.2)
2719
- the watcher writes the instance status to a file, to allow monitoring
2720
  to report the instance status (from the master) based on cached
2721
  results of the watcher's queries; while this can get stale if the
2722
  watcher is being locked due to other work on the cluster, this is
2723
  still an improvement
2724
- the watcher now also restarts the node daemon and the rapi daemon if
2725
  they died
2726
- fixed the watcher to handle full and drained queue cases
2727
- hooks export more instance data in the environment, which helps if
2728
  hook scripts need to take action based on the instance's properties
2729
  (no longer need to query back into ganeti)
2730
- instance failovers when the instance is stopped do not check for free
2731
  RAM, so that failing over a stopped instance is possible in low memory
2732
  situations
2733
- rapi uses queries for tags instead of jobs (for less job traffic), and
2734
  for cluster tags it won't talk to masterd at all but read them from
2735
  ssconf
2736
- a couple of error handling fixes in RAPI
2737
- drbd handling: improved the error handling of inconsistent disks after
2738
  resync to reduce the frequency of "there are some degraded disks for
2739
  this instance" messages
2740
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2741
  error handling path called a wrong function name)
2742

    
2743

    
2744
Version 2.0.0
2745
-------------
2746

    
2747
*(Released Wed, 27 May 2009)*
2748

    
2749
- no changes from rc5
2750

    
2751

    
2752
Version 2.0 rc5
2753
---------------
2754

    
2755
*(Released Wed, 20 May 2009)*
2756

    
2757
- fix a couple of bugs (validation, argument checks)
2758
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2759
- some small improvements to RAPI and IAllocator
2760
- make watcher automatically start the master daemon if down
2761

    
2762

    
2763
Version 2.0 rc4
2764
---------------
2765

    
2766
*(Released Mon, 27 Apr 2009)*
2767

    
2768
- change the OS list to not require locks; this helps with big clusters
2769
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2770
  volume group is broken
2771
- ``gnt-instance info``, without any arguments, doesn't run for all
2772
  instances anymore; either pass ``--all`` or pass the desired
2773
  instances; this helps against mistakes on big clusters where listing
2774
  the information for all instances takes a long time
2775
- miscellaneous doc and man pages fixes
2776

    
2777

    
2778
Version 2.0 rc3
2779
---------------
2780

    
2781
*(Released Wed, 8 Apr 2009)*
2782

    
2783
- Change the internal locking model of some ``gnt-node`` commands, in
2784
  order to reduce contention (and blocking of master daemon) when
2785
  batching many creation/reinstall jobs
2786
- Fixes to Xen soft reboot
2787
- No longer build documentation at build time, instead distribute it in
2788
  the archive, in order to reduce the need for the whole docbook/rst
2789
  toolchains
2790

    
2791

    
2792
Version 2.0 rc2
2793
---------------
2794

    
2795
*(Released Fri, 27 Mar 2009)*
2796

    
2797
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2798
- Fix watcher startup sequence, improves the behaviour of busy clusters
2799
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2800
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2801
  bind address and other places
2802
- Some documentation fixes and updates
2803

    
2804

    
2805
Version 2.0 rc1
2806
---------------
2807

    
2808
*(Released Mon, 2 Mar 2009)*
2809

    
2810
- More documentation updates, now all docs should be more-or-less
2811
  up-to-date
2812
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2813
  etc.)
2814
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2815
  and KVM)
2816
- Fix an issue related to $libdir/run/ganeti and cluster creation
2817

    
2818

    
2819
Version 2.0 beta2
2820
-----------------
2821

    
2822
*(Released Thu, 19 Feb 2009)*
2823

    
2824
- Xen PVM and KVM have switched the default value for the instance root
2825
  disk to the first partition on the first drive, instead of the whole
2826
  drive; this means that the OS installation scripts must be changed
2827
  accordingly
2828
- Man pages have been updated
2829
- RAPI has been switched by default to HTTPS, and the exported functions
2830
  should all work correctly
2831
- RAPI v1 has been removed
2832
- Many improvements to the KVM hypervisor
2833
- Block device errors are now better reported
2834
- Many other bugfixes and small improvements
2835

    
2836

    
2837
Version 2.0 beta1
2838
-----------------
2839

    
2840
*(Released Mon, 26 Jan 2009)*
2841

    
2842
- Version 2 is a general rewrite of the code and therefore the
2843
  differences are too many to list, see the design document for 2.0 in
2844
  the ``doc/`` subdirectory for more details
2845
- In this beta version there is not yet a migration path from 1.2 (there
2846
  will be one in the final 2.0 release)
2847
- A few significant changes are:
2848

    
2849
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2850
    various ``gnt-*`` commands are just front-ends to it
2851
  - all the commands are entered into, and executed from a job queue,
2852
    see the ``gnt-job(8)`` manpage
2853
  - the RAPI daemon supports read-write operations, secured by basic
2854
    HTTP authentication on top of HTTPS
2855
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2856
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2857
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2858
  - DRBD devices are using statically allocated minor numbers, which
2859
    will be assigned to existing instances during the migration process
2860
  - there is support for both Xen PVM and Xen HVM instances running on
2861
    the same cluster
2862
  - KVM virtualization is supported too
2863
  - file-based storage has been implemented, which means that it is
2864
    possible to run the cluster without LVM and DRBD storage, for
2865
    example using a shared filesystem exported from shared storage (and
2866
    still have live migration)
2867

    
2868

    
2869
Version 1.2.7
2870
-------------
2871

    
2872
*(Released Tue, 13 Jan 2009)*
2873

    
2874
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2875
- Reuse the old instance mac address by default on instance import, if
2876
  the instance name is the same.
2877
- Handle situations in which the node info rpc returns incomplete
2878
  results (issue 46)
2879
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2880
- Improved version of batcher:
2881

    
2882
  - state file support
2883
  - instance mac address support
2884
  - support for HVM clusters/instances
2885

    
2886
- Add an option to show the number of cpu sockets and nodes in
2887
  ``gnt-node list``
2888
- Support OSes that handle more than one version of the OS api (but do
2889
  not change the current API in any other way)
2890
- Fix ``gnt-node migrate``
2891
- ``gnt-debug`` man page
2892
- Fixes various more typos and small issues
2893
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2894

    
2895

    
2896
Version 1.2.6
2897
-------------
2898

    
2899
*(Released Wed, 24 Sep 2008)*
2900

    
2901
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2902
  type of disk exported to fully virtualized instances.
2903
- provide access to the serial console of HVM instances
2904
- instance auto_balance flag, set by default. If turned off it will
2905
  avoid warnings on cluster verify if there is not enough memory to fail
2906
  over an instance. in the future it will prevent automatically failing
2907
  it over when we will support that.
2908
- batcher tool for instance creation, see ``tools/README.batcher``
2909
- ``gnt-instance reinstall --select-os`` to interactively select a new
2910
  operating system when reinstalling an instance.
2911
- when changing the memory amount on instance modify a check has been
2912
  added that the instance will be able to start. also warnings are
2913
  emitted if the instance will not be able to fail over, if auto_balance
2914
  is true.
2915
- documentation fixes
2916
- sync fields between ``gnt-instance list/modify/add/import``
2917
- fix a race condition in drbd when the sync speed was set after giving
2918
  the device a remote peer.
2919

    
2920

    
2921
Version 1.2.5
2922
-------------
2923

    
2924
*(Released Tue, 22 Jul 2008)*
2925

    
2926
- note: the allowed size and number of tags per object were reduced
2927
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2928
- fixed twisted 8.x compatibility
2929
- fixed ``gnt-instance replace-disks`` with iallocator
2930
- add TCP keepalives on twisted connections to detect restarted nodes
2931
- disk increase support, see ``gnt-instance grow-disk``
2932
- implement bulk node/instance query for RAPI
2933
- add tags in node/instance listing (optional)
2934
- experimental migration (and live migration) support, read the man page
2935
  for ``gnt-instance migrate``
2936
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2937
  has some small improvements in handling its state file
2938

    
2939

    
2940
Version 1.2.4
2941
-------------
2942

    
2943
*(Released Fri, 13 Jun 2008)*
2944

    
2945
- Experimental readonly, REST-based remote API implementation;
2946
  automatically started on master node, TCP port 5080, if enabled by
2947
  ``--enable-rapi`` parameter to configure script.
2948
- Instance allocator support. Add and import instance accept a
2949
  ``--iallocator`` parameter, and call that instance allocator to decide
2950
  which node to use for the instance. The iallocator document describes
2951
  what's expected from an allocator script.
2952
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2953
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2954
  node is lost there is still enough memory to fail over the instances
2955
  that reside on it.
2956
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2957
  ``gnt-cluster verify``, to check for site-specific compliance. All the
2958
  hooks will run, and their output, if any, will be displayed. Any
2959
  failing hook will make the verification return an error value.
2960
- ``gnt-cluster verify`` now checks that its peers are reachable on the
2961
  primary and secondary interfaces
2962
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2963
  that is still declared as part of the cluster and has failed.
2964
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
2965
  specifying output fields, that just adds the chosen fields to the
2966
  default ones.
2967
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
2968
  export from the filesystem.
2969
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2970
  have been added. Using them you can enable/disable acpi and pae
2971
  support, and specify a path for a cd image to be exported to the
2972
  instance. These parameters as the name suggest only work on HVM
2973
  clusters.
2974
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2975
  PAE support will be set to the previously hardcoded values, but the
2976
  (previously hardcoded) path to the CDROM ISO image will be unset and
2977
  if required, needs to be set manually with ``gnt-instance modify``
2978
  after the upgrade.
2979
- The address to which an instance's VNC console is bound is now
2980
  selectable per-instance, rather than being cluster wide. Of course
2981
  this only applies to instances controlled via VNC, so currently just
2982
  applies to HVM clusters.
2983

    
2984

    
2985
Version 1.2.3
2986
-------------
2987

    
2988
*(Released Mon, 18 Feb 2008)*
2989

    
2990
- more tweaks to the disk activation code (especially helpful for DRBD)
2991
- change the default ``gnt-instance list`` output format, now there is
2992
  one combined status field (see the manpage for the exact values this
2993
  field will have)
2994
- some more fixes for the mac export to hooks change
2995
- make Ganeti not break with DRBD 8.2.x (which changed the version
2996
  format in ``/proc/drbd``) (issue 24)
2997
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2998
  template, allowing migration from DRBD0.7+MD to DRBD8
2999

    
3000

    
3001
Version 1.2.2
3002
-------------
3003

    
3004
*(Released Wed, 30 Jan 2008)*
3005

    
3006
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
3007
  support (issue 23)
3008
- add command aliases infrastructure and a few aliases
3009
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
3010
  man pages and the ``--help`` option of ``gnt-node
3011
  list``/``gnt-instance list``
3012
- fix ``gnt-backup list`` with down nodes (issue 21)
3013
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
3014
- fix the dist archive and add a check for including svn/git files in
3015
  the future
3016
- some developer-related changes: improve the burnin and the QA suite,
3017
  add an upload script for testing during development
3018

    
3019

    
3020
Version 1.2.1
3021
-------------
3022

    
3023
*(Released Wed, 16 Jan 2008)*
3024

    
3025
- experimental HVM support, read the install document, section
3026
  "Initializing the cluster"
3027
- allow for the PVM hypervisor per-instance kernel and initrd paths
3028
- add a new command ``gnt-cluster verify-disks`` which uses a new
3029
  algorithm to improve the reconnection of the DRBD pairs if the device
3030
  on the secondary node has gone away
3031
- make logical volume code auto-activate LVs at disk activation time
3032
- slightly improve the speed of activating disks
3033
- allow specification of the MAC address at instance creation time, and
3034
  changing it later via ``gnt-instance modify``
3035
- fix handling of external commands that generate lots of output on
3036
  stderr
3037
- update documentation with regard to minimum version of DRBD8 supported
3038

    
3039

    
3040
Version 1.2.0
3041
-------------
3042

    
3043
*(Released Tue, 4 Dec 2007)*
3044

    
3045
- Log the ``xm create`` output to the node daemon log on failure (to
3046
  help diagnosing the error)
3047
- In debug mode, log all external commands output if failed to the logs
3048
- Change parsing of lvm commands to ignore stderr
3049

    
3050

    
3051
Version 1.2 beta3
3052
-----------------
3053

    
3054
*(Released Wed, 28 Nov 2007)*
3055

    
3056
- Another round of updates to the DRBD 8 code to deal with more failures
3057
  in the replace secondary node operation
3058
- Some more logging of failures in disk operations (lvm, drbd)
3059
- A few documentation updates
3060
- QA updates
3061

    
3062

    
3063
Version 1.2 beta2
3064
-----------------
3065

    
3066
*(Released Tue, 13 Nov 2007)*
3067

    
3068
- Change configuration file format from Python's Pickle to JSON.
3069
  Upgrading is possible using the cfgupgrade utility.
3070
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
3071
  faster replace disks and is more stable (DRBD 8 has many improvements
3072
  compared to DRBD 0.7)
3073
- Added command line tags support (see man pages for ``gnt-instance``,
3074
  ``gnt-node``, ``gnt-cluster``)
3075
- Added instance rename support
3076
- Added multi-instance startup/shutdown
3077
- Added cluster rename support
3078
- Added ``gnt-node evacuate`` to simplify some node operations
3079
- Added instance reboot operation that can speedup reboot as compared to
3080
  stop and start
3081
- Soften the requirement that hostnames are in FQDN format
3082
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
3083
  reboots
3084
- Removed dependency on debian's patched fping that uses the
3085
  non-standard ``-S`` option
3086
- Now the OS definitions are searched for in multiple, configurable
3087
  paths (easier for distros to package)
3088
- Some changes to the hooks infrastructure (especially the new
3089
  post-configuration update hook)
3090
- Other small bugfixes
3091

    
3092
.. vim: set textwidth=72 syntax=rst :
3093
.. Local Variables:
3094
.. mode: rst
3095
.. fill-column: 72
3096
.. End: