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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
- KVM hypervisors can now access RBD storage directly without having to
28
  go through a block device.
29
- A new command 'gnt-cluster upgrade' was added that automates the upgrade
30
  procedure between two Ganeti versions that are both 2.10 or higher.
31

    
32

    
33
Version 2.9.0 rc2
34
-----------------
35

    
36
*(Released Wed, 9 Oct 2013)*
37

    
38
Incompatible/important changes
39
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
40

    
41
- hroller now also plans for capacity to move non-redundant instances off
42
  any node to be rebooted; the old behavior of completely ignoring any
43
  non-redundant instances can be restored by adding the --ignore-non-redundant
44
  option.
45
- The cluster option '--no-lvm-storage' was removed in favor of the new option
46
  '--enabled-disk-templates'.
47
- On instance creation, disk templates no longer need to be specified
48
  with '-t'. The default disk template will be taken from the list of
49
  enabled disk templates.
50
- The monitoring daemon is now running as root, in order to be able to collect
51
  information only available to root (such as the state of Xen instances).
52
- The ConfD client is now IPv6 compatible.
53
- File and shared file storage is no longer dis/enabled at configure time,
54
  but using the option '--enabled-disk-templates' at cluster initialization and
55
  modification.
56
- The default directories for file and shared file storage are not anymore
57
  specified at configure time, but taken from the cluster's configuration.
58
  They can be set at cluster initialization and modification with
59
  '--file-storage-dir' and '--shared-file-storage-dir'.
60
- Cluster verification now includes stricter checks regarding the
61
  default file and shared file storage directories. It now checks that
62
  the directories are explicitely allowed in the 'file-storage-paths' file and
63
  that the directories exist on all nodes.
64
- The list of allowed disk templates in the instance policy and the list
65
  of cluster-wide enabled disk templates is now checked for consistency
66
  on cluster or group modification. On cluster initialization, the ipolicy
67
  disk templates are ensured to be a subset of the cluster-wide enabled
68
  disk templates.
69

    
70
New features
71
~~~~~~~~~~~~
72

    
73
- DRBD 8.4 support. Depending on the installed DRBD version, Ganeti now uses
74
  the correct command syntax. It is possible to use different DRBD versions
75
  on different nodes as long as they are compatible to each other. This
76
  enables rolling upgrades of DRBD with no downtime. As permanent operation
77
  of different DRBD versions within a node group is discouraged,
78
  ``gnt-cluster verify`` will emit a warning if it detects such a situation.
79
- New "inst-status-xen" data collector for the monitoring daemon, providing
80
  information about the state of the xen instances on the nodes.
81
- New "lv" data collector for the monitoring daemon, collecting data about the
82
  logical volumes on the nodes, and pairing them with the name of the instances
83
  they belong to.
84
- New "diskstats" data collector, collecting the data from /proc/diskstats and
85
  presenting them over the monitoring daemon interface.
86
- The ConfD client is now IPv6 compatible.
87

    
88
New dependencies
89
~~~~~~~~~~~~~~~~
90
The following new dependencies have been added.
91

    
92
Python
93

    
94
- ``python-mock`` (http://www.voidspace.org.uk/python/mock/) is now a required
95
  for the unit tests (and only used for testing).
96

    
97
Haskell
98

    
99
- ``hslogger`` (http://software.complete.org/hslogger) is now always
100
  required, even if confd is not enabled.
101

    
102
Since 2.9.0 rc1
103
~~~~~~~~~~~~~~~
104

    
105
- Fix bug in cfgupgrade that led to failure when upgrading from 2.8 with
106
  at least one DRBD instance.
107
- Fix bug in cfgupgrade that led to an invalid 2.8 configuration after
108
  downgrading.
109

    
110

    
111
Version 2.9.0 rc1
112
-----------------
113

    
114
*(Released Tue, 1 Oct 2013)*
115

    
116
The first release candidate in the 2.9 series. Since 2.9.0 beta1:
117

    
118
- various bug fixes
119
- update of the documentation, in particular installation instructions
120
- merging of LD_* constants into DT_* constants
121
- python style changes to be compatible with newer versions of pylint
122

    
123

    
124
Version 2.9.0 beta1
125
-------------------
126

    
127
*(Released Thu, 29 Aug 2013)*
128

    
129
This was the first beta release of the 2.9 series. All important changes
130
are listed in the latest 2.9 entry.
131

    
132

    
133
Version 2.8.0
134
-------------
135

    
136
*(Released Mon, 30 Sep 2013)*
137

    
138
Incompatible/important changes
139
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
140

    
141
- Instance policy can contain multiple instance specs, as described in
142
  the “Constrained instance sizes” section of :doc:`Partitioned Ganeti
143
  <design-partitioned>`. As a consequence, it's not possible to partially change
144
  or override instance specs. Bounding specs (min and max) can be specified as a
145
  whole using the new option ``--ipolicy-bounds-specs``, while standard
146
  specs use the new option ``--ipolicy-std-specs``.
147
- The output of the info command of gnt-cluster, gnt-group, gnt-node,
148
  gnt-instance is a valid YAML object.
149
- hail now honors network restrictions when allocating nodes. This led to an
150
  update of the IAllocator protocol. See the IAllocator documentation for
151
  details.
152
- confd now only answers static configuration request over the network. luxid
153
  was extracted, listens on the local LUXI socket and responds to live queries.
154
  This allows finer grained permissions if using separate users.
155

    
156
New features
157
~~~~~~~~~~~~
158

    
159
- The :doc:`Remote API <rapi>` daemon now supports a command line flag
160
  to always require authentication, ``--require-authentication``. It can
161
  be specified in ``$sysconfdir/default/ganeti``.
162
- A new cluster attribute 'enabled_disk_templates' is introduced. It will
163
  be used to manage the disk templates to be used by instances in the cluster.
164
  Initially, it will be set to a list that includes plain, drbd, if they were
165
  enabled by specifying a volume group name, and file and sharedfile, if those
166
  were enabled at configure time. Additionally, it will include all disk
167
  templates that are currently used by instances. The order of disk templates
168
  will be based on Ganeti's history of supporting them. In the future, the
169
  first entry of the list will be used as a default disk template on instance
170
  creation.
171
- ``cfgupgrade`` now supports a ``--downgrade`` option to bring the
172
  configuration back to the previous stable version.
173
- Disk templates in group ipolicy can be restored to the default value.
174
- Initial support for diskless instances and virtual clusters in QA.
175
- More QA and unit tests for instance policies.
176
- Every opcode now contains a reason trail (visible through ``gnt-job info``)
177
  describing why the opcode itself was executed.
178
- The monitoring daemon is now available. It allows users to query the cluster
179
  for obtaining information about the status of the system. The daemon is only
180
  responsible for providing the information over the network: the actual data
181
  gathering is performed by data collectors (currently, only the DRBD status
182
  collector is available).
183
- In order to help developers work on Ganeti, a new script
184
  (``devel/build_chroot``) is provided, for building a chroot that contains all
185
  the required development libraries and tools for compiling Ganeti on a Debian
186
  Squeeze system.
187
- A new tool, ``harep``, for performing self-repair and recreation of instances
188
  in Ganeti has been added.
189
- Split queries are enabled for tags, network, exports, cluster info, groups,
190
  jobs, nodes.
191
- New command ``show-ispecs-cmd`` for ``gnt-cluster`` and ``gnt-group``.
192
  It prints the command line to set the current policies, to ease
193
  changing them.
194
- Add the ``vnet_hdr`` HV parameter for KVM, to control whether the tap
195
  devices for KVM virtio-net interfaces will get created with VNET_HDR
196
  (IFF_VNET_HDR) support. If set to false, it disables offloading on the
197
  virtio-net interfaces, which prevents host kernel tainting and log
198
  flooding, when dealing with broken or malicious virtio-net drivers.
199
  It's set to true by default.
200
- Instance failover now supports a ``--cleanup`` parameter for fixing previous
201
  failures.
202
- Support 'viridian' parameter in Xen HVM
203
- Support DSA SSH keys in bootstrap
204
- To simplify the work of packaging frameworks that want to add the needed users
205
  and groups in a split-user setup themselves, at build time three files in
206
  ``doc/users`` will be generated. The ``groups`` files contains, one per line,
207
  the groups to be generated, the ``users`` file contains, one per line, the
208
  users to be generated, optionally followed by their primary group, where
209
  important. The ``groupmemberships`` file contains, one per line, additional
210
  user-group membership relations that need to be established. The syntax of
211
  these files will remain stable in all future versions.
212

    
213

    
214
New dependencies
215
~~~~~~~~~~~~~~~~
216
The following new dependencies have been added:
217

    
218
For Haskell:
219
- The ``curl`` library is not optional anymore for compiling the Haskell code.
220
- ``snap-server`` library (if monitoring is enabled).
221

    
222
For Python:
223
- The minimum Python version needed to run Ganeti is now 2.6.
224
- ``yaml`` library (only for running the QA).
225

    
226
Since 2.8.0 rc3
227
~~~~~~~~~~~~~~~
228
- Perform proper cleanup on termination of Haskell daemons
229
- Fix corner-case in handling of remaining retry time
230

    
231

    
232
Version 2.8.0 rc3
233
-----------------
234

    
235
*(Released Tue, 17 Sep 2013)*
236

    
237
- To simplify the work of packaging frameworks that want to add the needed users
238
  and groups in a split-user setup themselves, at build time three files in
239
  ``doc/users`` will be generated. The ``groups`` files contains, one per line,
240
  the groups to be generated, the ``users`` file contains, one per line, the
241
  users to be generated, optionally followed by their primary group, where
242
  important. The ``groupmemberships`` file contains, one per line, additional
243
  user-group membership relations that need to be established. The syntax of
244
  these files will remain stable in all future versions.
245
- Add a default to file-driver when unspecified over RAPI (Issue 571)
246
- Mark the DSA host pubkey as optional, and remove it during config downgrade
247
  (Issue 560)
248
- Some documentation fixes
249

    
250

    
251
Version 2.8.0 rc2
252
-----------------
253

    
254
*(Released Tue, 27 Aug 2013)*
255

    
256
The second release candidate of the 2.8 series. Since 2.8.0. rc1:
257

    
258
- Support 'viridian' parameter in Xen HVM (Issue 233)
259
- Include VCS version in ``gnt-cluster version``
260
- Support DSA SSH keys in bootstrap (Issue 338)
261
- Fix batch creation of instances
262
- Use FQDN to check master node status (Issue 551)
263
- Make the DRBD collector more failure-resilient
264

    
265

    
266
Version 2.8.0 rc1
267
-----------------
268

    
269
*(Released Fri, 2 Aug 2013)*
270

    
271
The first release candidate of the 2.8 series. Since 2.8.0 beta1:
272

    
273
- Fix upgrading/downgrading from 2.7
274
- Increase maximum RAPI message size
275
- Documentation updates
276
- Split ``confd`` between ``luxid`` and ``confd``
277
- Merge 2.7 series up to the 2.7.1 release
278
- Allow the ``modify_etc_hosts`` option to be changed
279
- Add better debugging for ``luxid`` queries
280
- Expose bulk parameter for GetJobs in RAPI client
281
- Expose missing ``network`` fields in RAPI
282
- Add some ``cluster verify`` tests
283
- Some unittest fixes
284
- Fix a malfunction in ``hspace``'s tiered allocation
285
- Fix query compatibility between haskell and python implementations
286
- Add the ``vnet_hdr`` HV parameter for KVM
287
- Add ``--cleanup`` to instance failover
288
- Change the connected groups format in ``gnt-network info`` output; it
289
  was previously displayed as a raw list by mistake. (Merged from 2.7)
290

    
291

    
292
Version 2.8.0 beta1
293
-------------------
294

    
295
*(Released Mon, 24 Jun 2013)*
296

    
297
This was the first beta release of the 2.8 series. All important changes
298
are listed in the latest 2.8 entry.
299

    
300

    
301
Version 2.7.2
302
-------------
303

    
304
*(Released Thu, 26 Sep 2013)*
305

    
306
- Change the connected groups format in ``gnt-network info`` output; it
307
  was previously displayed as a raw list by mistake
308
- Check disk template in right dict when copying
309
- Support multi-instance allocs without iallocator
310
- Fix some errors in the documentation
311
- Fix formatting of tuple in an error message
312

    
313

    
314
Version 2.7.1
315
-------------
316

    
317
*(Released Thu, 25 Jul 2013)*
318

    
319
- Add logrotate functionality in daemon-util
320
- Add logrotate example file
321
- Add missing fields to network queries over rapi
322
- Fix network object timestamps
323
- Add support for querying network timestamps
324
- Fix a typo in the example crontab
325
- Fix a documentation typo
326

    
327

    
328
Version 2.7.0
329
-------------
330

    
331
*(Released Thu, 04 Jul 2013)*
332

    
333
Incompatible/important changes
334
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
335

    
336
- Instance policies for disk size were documented to be on a per-disk
337
  basis, but hail applied them to the sum of all disks. This has been
338
  fixed.
339
- ``hbal`` will now exit with status 0 if, during job execution over
340
  LUXI, early exit has been requested and all jobs are successful;
341
  before, exit status 1 was used, which cannot be differentiated from
342
  "job error" case
343
- Compatibility with newer versions of rbd has been fixed
344
- ``gnt-instance batch-create`` has been changed to use the bulk create
345
  opcode from Ganeti. This lead to incompatible changes in the format of
346
  the JSON file. It's now not a custom dict anymore but a dict
347
  compatible with the ``OpInstanceCreate`` opcode.
348
- Parent directories for file storage need to be listed in
349
  ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
350
  write the file automatically based on old configuration values, but it
351
  can not distribute it across all nodes and the file contents should be
352
  verified. Use ``gnt-cluster copyfile
353
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
354
  upgraded. The reason for requiring this list of paths now is that
355
  before it would have been possible to inject new paths via RPC,
356
  allowing files to be created in arbitrary locations. The RPC protocol
357
  is protected using SSL/X.509 certificates, but as a design principle
358
  Ganeti does not permit arbitrary paths to be passed.
359
- The parsing of the variants file for OSes (see
360
  :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
361
  lines and comment lines (starting with ``#``) are ignored for better
362
  readability.
363
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
364
  longer available. ``gnt-node add`` now invokes a new tool on the
365
  destination node, named ``prepare-node-join``, to configure the SSH
366
  daemon. Paramiko is no longer necessary to configure nodes' SSH
367
  daemons via ``gnt-node add``.
368
- Draining (``gnt-cluster queue drain``) and un-draining the job queue
369
  (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
370
  the flag is not reset after a master failover.
371
- Python 2.4 has *not* been tested with this release. Using 2.6 or above
372
  is recommended. 2.6 will be mandatory from the 2.8 series.
373

    
374

    
375
New features
376
~~~~~~~~~~~~
377

    
378
- New network management functionality to support automatic allocation
379
  of IP addresses and managing of network parameters. See
380
  :manpage:`gnt-network(8)` for more details.
381
- New external storage backend, to allow managing arbitrary storage
382
  systems external to the cluster. See
383
  :manpage:`ganeti-extstorage-interface(7)`.
384
- New ``exclusive-storage`` node parameter added, restricted to
385
  nodegroup level. When it's set to true, physical disks are assigned in
386
  an exclusive fashion to instances, as documented in :doc:`Partitioned
387
  Ganeti <design-partitioned>`.  Currently, only instances using the
388
  ``plain`` disk template are supported.
389
- The KVM hypervisor has been updated with many new hypervisor
390
  parameters, including a generic one for passing arbitrary command line
391
  values. See a complete list in :manpage:`gnt-instance(8)`. It is now
392
  compatible up to qemu 1.4.
393
- A new tool, called ``mon-collector``, is the stand-alone executor of
394
  the data collectors for a monitoring system. As of this version, it
395
  just includes the DRBD data collector, that can be executed by calling
396
  ``mon-collector`` using the ``drbd`` parameter. See
397
  :manpage:`mon-collector(7)`.
398
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
399
  for RAPI users. It allows granting permissions to query for
400
  information to a specific user without giving
401
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
402
- A new tool named ``node-cleanup`` has been added. It cleans remains of
403
  a cluster from a machine by stopping all daemons, removing
404
  certificates and ssconf files. Unless the ``--no-backup`` option is
405
  given, copies of the certificates are made.
406
- Instance creations now support the use of opportunistic locking,
407
  potentially speeding up the (parallel) creation of multiple instances.
408
  This feature is currently only available via the :doc:`RAPI
409
  <rapi>` interface and when an instance allocator is used. If the
410
  ``opportunistic_locking`` parameter is set the opcode will try to
411
  acquire as many locks as possible, but will not wait for any locks
412
  held by other opcodes. If not enough resources can be found to
413
  allocate the instance, the temporary error code
414
  :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
415
  retried thereafter, with or without opportunistic locking.
416
- New experimental linux-ha resource scripts.
417
- Restricted-commands support: ganeti can now be asked (via command line
418
  or rapi) to perform commands on a node. These are passed via ganeti
419
  RPC rather than ssh. This functionality is restricted to commands
420
  specified on the ``$sysconfdir/ganeti/restricted-commands`` for security
421
  reasons. The file is not copied automatically.
422

    
423

    
424
Misc changes
425
~~~~~~~~~~~~
426

    
427
- Diskless instances are now externally mirrored (Issue 237). This for
428
  now has only been tested in conjunction with explicit target nodes for
429
  migration/failover.
430
- Queries not needing locks or RPC access to the node can now be
431
  performed by the confd daemon, making them independent from jobs, and
432
  thus faster to execute. This is selectable at configure time.
433
- The functionality for allocating multiple instances at once has been
434
  overhauled and is now also available through :doc:`RAPI <rapi>`.
435

    
436
There are no significant changes from version 2.7.0~rc3.
437

    
438

    
439
Version 2.7.0 rc3
440
-----------------
441

    
442
*(Released Tue, 25 Jun 2013)*
443

    
444
- Fix permissions on the confd query socket (Issue 477)
445
- Fix permissions on the job archive dir (Issue 498)
446
- Fix handling of an internal exception in replace-disks (Issue 472)
447
- Fix gnt-node info handling of shortened names (Issue 497)
448
- Fix gnt-instance grow-disk when wiping is enabled
449
- Documentation improvements, and support for newer pandoc
450
- Fix hspace honoring ipolicy for disks (Issue 484)
451
- Improve handling of the ``kvm_extra`` HV parameter
452

    
453

    
454
Version 2.7.0 rc2
455
-----------------
456

    
457
*(Released Fri, 24 May 2013)*
458

    
459
- ``devel/upload`` now works when ``/var/run`` on the target nodes is a
460
  symlink.
461
- Disks added through ``gnt-instance modify`` or created through
462
  ``gnt-instance recreate-disks`` are wiped, if the
463
  ``prealloc_wipe_disks`` flag is set.
464
- If wiping newly created disks fails, the disks are removed. Also,
465
  partial failures in creating disks through ``gnt-instance modify``
466
  triggers a cleanup of the partially-created disks.
467
- Removing the master IP address doesn't fail if the address has been
468
  already removed.
469
- Fix ownership of the OS log dir
470
- Workaround missing SO_PEERCRED constant (Issue 191)
471

    
472

    
473
Version 2.7.0 rc1
474
-----------------
475

    
476
*(Released Fri, 3 May 2013)*
477

    
478
This was the first release candidate of the 2.7 series. Since beta3:
479

    
480
- Fix kvm compatibility with qemu 1.4 (Issue 389)
481
- Documentation updates (admin guide, upgrade notes, install
482
  instructions) (Issue 372)
483
- Fix gnt-group list nodes and instances count (Issue 436)
484
- Fix compilation without non-mandatory libraries (Issue 441)
485
- Fix xen-hvm hypervisor forcing nics to type 'ioemu' (Issue 247)
486
- Make confd logging more verbose at INFO level (Issue 435)
487
- Improve "networks" documentation in :manpage:`gnt-instance(8)`
488
- Fix failure path for instance storage type conversion (Issue 229)
489
- Update htools text backend documentation
490
- Improve the renew-crypto section of :manpage:`gnt-cluster(8)`
491
- Disable inter-cluster instance move for file-based instances, because
492
  it is dependant on instance export, which is not supported for
493
  file-based instances. (Issue 414)
494
- Fix gnt-job crashes on non-ascii characters (Issue 427)
495
- Fix volume group checks on non-vm-capable nodes (Issue 432)
496

    
497

    
498
Version 2.7.0 beta3
499
-------------------
500

    
501
*(Released Mon, 22 Apr 2013)*
502

    
503
This was the third beta release of the 2.7 series. Since beta2:
504

    
505
- Fix hail to verify disk instance policies on a per-disk basis (Issue 418).
506
- Fix data loss on wrong usage of ``gnt-instance move``
507
- Properly export errors in confd-based job queries
508
- Add ``users-setup`` tool
509
- Fix iallocator protocol to report 0 as a disk size for diskless
510
  instances. This avoids hail breaking when a diskless instance is
511
  present.
512
- Fix job queue directory permission problem that made confd job queries
513
  fail. This requires running an ``ensure-dirs --full-run`` on upgrade
514
  for access to archived jobs (Issue 406).
515
- Limit the sizes of networks supported by ``gnt-network`` to something
516
  between a ``/16`` and a ``/30`` to prevent memory bloat and crashes.
517
- Fix bugs in instance disk template conversion
518
- Fix GHC 7 compatibility
519
- Fix ``burnin`` install path (Issue 426).
520
- Allow very small disk grows (Issue 347).
521
- Fix a ``ganeti-noded`` memory bloat introduced in 2.5, by making sure
522
  that noded doesn't import masterd code (Issue 419).
523
- Make sure the default metavg at cluster init is the same as the vg, if
524
  unspecified (Issue 358).
525
- Fix cleanup of partially created disks (part of Issue 416)
526

    
527

    
528
Version 2.7.0 beta2
529
-------------------
530

    
531
*(Released Tue, 2 Apr 2013)*
532

    
533
This was the second beta release of the 2.7 series. Since beta1:
534

    
535
- Networks no longer have a "type" slot, since this information was
536
  unused in Ganeti: instead of it tags should be used.
537
- The rapi client now has a ``target_node`` option to MigrateInstance.
538
- Fix early exit return code for hbal (Issue 386).
539
- Fix ``gnt-instance migrate/failover -n`` (Issue 396).
540
- Fix ``rbd showmapped`` output parsing (Issue 312).
541
- Networks are now referenced indexed by UUID, rather than name. This
542
  will require running cfgupgrade, from 2.7.0beta1, if networks are in
543
  use.
544
- The OS environment now includes network information.
545
- Deleting of a network is now disallowed if any instance nic is using
546
  it, to prevent dangling references.
547
- External storage is now documented in man pages.
548
- The exclusive_storage flag can now only be set at nodegroup level.
549
- Hbal can now submit an explicit priority with its jobs.
550
- Many network related locking fixes.
551
- Bump up the required pylint version to 0.25.1.
552
- Fix the ``no_remember`` option in RAPI client.
553
- Many ipolicy related tests, qa, and fixes.
554
- Many documentation improvements and fixes.
555
- Fix building with ``--disable-file-storage``.
556
- Fix ``-q`` option in htools, which was broken if passed more than
557
  once.
558
- Some haskell/python interaction improvements and fixes.
559
- Fix iallocator in case of missing LVM storage.
560
- Fix confd config load in case of ``--no-lvm-storage``.
561
- The confd/query functionality is now mentioned in the security
562
  documentation.
563

    
564

    
565
Version 2.7.0 beta1
566
-------------------
567

    
568
*(Released Wed, 6 Feb 2013)*
569

    
570
This was the first beta release of the 2.7 series. All important changes
571
are listed in the latest 2.7 entry.
572

    
573

    
574
Version 2.6.2
575
-------------
576

    
577
*(Released Fri, 21 Dec 2012)*
578

    
579
Important behaviour change: hbal won't rebalance anymore instances which
580
have the ``auto_balance`` attribute set to false. This was the intention
581
all along, but until now it only skipped those from the N+1 memory
582
reservation (DRBD-specific).
583

    
584
A significant number of bug fixes in this release:
585

    
586
- Fixed disk adoption interaction with ipolicy checks.
587
- Fixed networking issues when instances are started, stopped or
588
  migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
589
- Fixed the warning in cluster verify for shared storage instances not
590
  being redundant.
591
- Fixed removal of storage directory on shared file storage (issue 262).
592
- Fixed validation of LVM volume group name in OpClusterSetParams
593
  (``gnt-cluster modify``) (issue 285).
594
- Fixed runtime memory increases (``gnt-instance modify -m``).
595
- Fixed live migration under Xen's ``xl`` mode.
596
- Fixed ``gnt-instance console`` with ``xl``.
597
- Fixed building with newer Haskell compiler/libraries.
598
- Fixed PID file writing in Haskell daemons (confd); this prevents
599
  restart issues if confd was launched manually (outside of
600
  ``daemon-util``) while another copy of it was running
601
- Fixed a type error when doing live migrations with KVM (issue 297) and
602
  the error messages for failing migrations have been improved.
603
- Fixed opcode validation for the out-of-band commands (``gnt-node
604
  power``).
605
- Fixed a type error when unsetting OS hypervisor parameters (issue
606
  311); now it's possible to unset all OS-specific hypervisor
607
  parameters.
608
- Fixed the ``dry-run`` mode for many operations: verification of
609
  results was over-zealous but didn't take into account the ``dry-run``
610
  operation, resulting in "wrong" failures.
611
- Fixed bash completion in ``gnt-job list`` when the job queue has
612
  hundreds of entries; especially with older ``bash`` versions, this
613
  results in significant CPU usage.
614

    
615
And lastly, a few other improvements have been made:
616

    
617
- Added option to force master-failover without voting (issue 282).
618
- Clarified error message on lock conflict (issue 287).
619
- Logging of newly submitted jobs has been improved (issue 290).
620
- Hostname checks have been made uniform between instance rename and
621
  create (issue 291).
622
- The ``--submit`` option is now supported by ``gnt-debug delay``.
623
- Shutting down the master daemon by sending SIGTERM now stops it from
624
  processing jobs waiting for locks; instead, those jobs will be started
625
  once again after the master daemon is started the next time (issue
626
  296).
627
- Support for Xen's ``xl`` program has been improved (besides the fixes
628
  above).
629
- Reduced logging noise in the Haskell confd daemon (only show one log
630
  entry for each config reload, instead of two).
631
- Several man page updates and typo fixes.
632

    
633

    
634
Version 2.6.1
635
-------------
636

    
637
*(Released Fri, 12 Oct 2012)*
638

    
639
A small bugfix release. Among the bugs fixed:
640

    
641
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
642
  made the command unusable.
643
- Commands that issue many jobs don't fail anymore just because some jobs
644
  take so long that other jobs are archived.
645
- Failures during ``gnt-instance reinstall`` are reflected by the exit
646
  status.
647
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
648
  DRBD is enabled.
649
- When ``always_failover`` is set, ``--allow-failover`` is not required
650
  in migrate commands anymore.
651
- ``bash_completion`` works even if extglob is disabled.
652
- Fixed bug with locks that made failover for RDB-based instances fail.
653
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
654
  a random node instead of one based on the allocator metric.
655
- Support for newer versions of pylint and pep8.
656
- Hail doesn't fail anymore when trying to add an instance of type
657
  ``file``, ``sharedfile`` or ``rbd``.
658
- Added new Makefile target to rebuild the whole distribution, so that
659
  all files are included.
660

    
661

    
662
Version 2.6.0
663
-------------
664

    
665
*(Released Fri, 27 Jul 2012)*
666

    
667

    
668
.. attention:: The ``LUXI`` protocol has been made more consistent
669
   regarding its handling of command arguments. This, however, leads to
670
   incompatibility issues with previous versions. Please ensure that you
671
   restart Ganeti daemons soon after the upgrade, otherwise most
672
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
673
   pausing/resuming the watcher, cancelling and archiving jobs, querying
674
   the cluster configuration) will fail.
675

    
676

    
677
New features
678
~~~~~~~~~~~~
679

    
680
Instance run status
681
+++++++++++++++++++
682

    
683
The current ``admin_up`` field, which used to denote whether an instance
684
should be running or not, has been removed. Instead, ``admin_state`` is
685
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
686

    
687
The rational behind this is that an instance being “down” can have
688
different meanings:
689

    
690
- it could be down during a reboot
691
- it could be temporarily be down for a reinstall
692
- or it could be down because it is deprecated and kept just for its
693
  disk
694

    
695
The previous Boolean state was making it difficult to do capacity
696
calculations: should Ganeti reserve memory for a down instance? Now, the
697
tri-state field makes it clear:
698

    
699
- in ``up`` and ``down`` state, all resources are reserved for the
700
  instance, and it can be at any time brought up if it is down
701
- in ``offline`` state, only disk space is reserved for it, but not
702
  memory or CPUs
703

    
704
The field can have an extra use: since the transition between ``up`` and
705
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
706
transition between ``offline`` and ``down`` is done via ``gnt-instance
707
modify``, it is possible to given different rights to users. For
708
example, owners of an instance could be allowed to start/stop it, but
709
not transition it out of the offline state.
710

    
711
Instance policies and specs
712
+++++++++++++++++++++++++++
713

    
714
In previous Ganeti versions, an instance creation request was not
715
limited on the minimum size and on the maximum size just by the cluster
716
resources. As such, any policy could be implemented only in third-party
717
clients (RAPI clients, or shell wrappers over ``gnt-*``
718
tools). Furthermore, calculating cluster capacity via ``hspace`` again
719
required external input with regards to instance sizes.
720

    
721
In order to improve these workflows and to allow for example better
722
per-node group differentiation, we introduced instance specs, which
723
allow declaring:
724

    
725
- minimum instance disk size, disk count, memory size, cpu count
726
- maximum values for the above metrics
727
- and “standard” values (used in ``hspace`` to calculate the standard
728
  sized instances)
729

    
730
The minimum/maximum values can be also customised at node-group level,
731
for example allowing more powerful hardware to support bigger instance
732
memory sizes.
733

    
734
Beside the instance specs, there are a few other settings belonging to
735
the instance policy framework. It is possible now to customise, per
736
cluster and node-group:
737

    
738
- the list of allowed disk templates
739
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
740
- the maximum ratio of instance to spindles (see below for more
741
  information) for local storage
742

    
743
All these together should allow all tools that talk to Ganeti to know
744
what are the ranges of allowed values for instances and the
745
over-subscription that is allowed.
746

    
747
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
748
instance configuration, and the physical CPU configuration from the
749
node. For the spindle ratios however, we didn't track before these
750
values, so new parameters have been added:
751

    
752
- a new node parameter ``spindle_count``, defaults to 1, customisable at
753
  node group or node level
754
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
755

    
756
Note that spindles in this context doesn't need to mean actual
757
mechanical hard-drives; it's just a relative number for both the node
758
I/O capacity and instance I/O consumption.
759

    
760
Instance migration behaviour
761
++++++++++++++++++++++++++++
762

    
763
While live-migration is in general desirable over failover, it is
764
possible that for some workloads it is actually worse, due to the
765
variable time of the “suspend” phase during live migration.
766

    
767
To allow the tools to work consistently over such instances (without
768
having to hard-code instance names), a new backend parameter
769
``always_failover`` has been added to control the migration/failover
770
behaviour. When set to True, all migration requests for an instance will
771
instead fall-back to failover.
772

    
773
Instance memory ballooning
774
++++++++++++++++++++++++++
775

    
776
Initial support for memory ballooning has been added. The memory for an
777
instance is no longer fixed (backend parameter ``memory``), but instead
778
can vary between minimum and maximum values (backend parameters
779
``minmem`` and ``maxmem``). Currently we only change an instance's
780
memory when:
781

    
782
- live migrating or failing over and instance and the target node
783
  doesn't have enough memory
784
- user requests changing the memory via ``gnt-instance modify
785
  --runtime-memory``
786

    
787
Instance CPU pinning
788
++++++++++++++++++++
789

    
790
In order to control the use of specific CPUs by instance, support for
791
controlling CPU pinning has been added for the Xen, HVM and LXC
792
hypervisors. This is controlled by a new hypervisor parameter
793
``cpu_mask``; details about possible values for this are in the
794
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
795
VCPU-to-CPU mapping) form will work well only when all nodes in your
796
cluster have the same amount of CPUs.
797

    
798
Disk parameters
799
+++++++++++++++
800

    
801
Another area in which Ganeti was not customisable were the parameters
802
used for storage configuration, e.g. how many stripes to use for LVM,
803
DRBD resync configuration, etc.
804

    
805
To improve this area, we've added disks parameters, which are
806
customisable at cluster and node group level, and which allow to
807
specify various parameters for disks (DRBD has the most parameters
808
currently), for example:
809

    
810
- DRBD resync algorithm and parameters (e.g. speed)
811
- the default VG for meta-data volumes for DRBD
812
- number of stripes for LVM (plain disk template)
813
- the RBD pool
814

    
815
These parameters can be modified via ``gnt-cluster modify -D …`` and
816
``gnt-group modify -D …``, and are used at either instance creation (in
817
case of LVM stripes, for example) or at disk “activation” time
818
(e.g. resync speed).
819

    
820
Rados block device support
821
++++++++++++++++++++++++++
822

    
823
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
824
denoted by the ``rbd`` disk template type. This is considered
825
experimental, feedback is welcome. For details on configuring it, see
826
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
827

    
828
Master IP setup
829
+++++++++++++++
830

    
831
The existing master IP functionality works well only in simple setups (a
832
single network shared by all nodes); however, if nodes belong to
833
different networks, then the ``/32`` setup and lack of routing
834
information is not enough.
835

    
836
To allow the master IP to function well in more complex cases, the
837
system was reworked as follows:
838

    
839
- a master IP netmask setting has been added
840
- the master IP activation/turn-down code was moved from the node daemon
841
  to a separate script
842
- whether to run the Ganeti-supplied master IP script or a user-supplied
843
  on is a ``gnt-cluster init`` setting
844

    
845
Details about the location of the standard and custom setup scripts are
846
in the man page :manpage:`gnt-cluster(8)`; for information about the
847
setup script protocol, look at the Ganeti-supplied script.
848

    
849
SPICE support
850
+++++++++++++
851

    
852
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
853
improved.
854

    
855
It is now possible to use TLS-protected connections, and when renewing
856
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
857
it is now possible to specify spice or spice CA certificates. Also, it
858
is possible to configure a password for SPICE sessions via the
859
hypervisor parameter ``spice_password_file``.
860

    
861
There are also new parameters to control the compression and streaming
862
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
863
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
864
for the spice parameters.
865

    
866
Lastly, it is now possible to see the SPICE connection information via
867
``gnt-instance console``.
868

    
869
OVF converter
870
+++++++++++++
871

    
872
A new tool (``tools/ovfconverter``) has been added that supports
873
conversion between Ganeti and the `Open Virtualization Format
874
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
875
from).
876

    
877
This relies on the ``qemu-img`` tool to convert the disk formats, so the
878
actual compatibility with other virtualization solutions depends on it.
879

    
880
Confd daemon changes
881
++++++++++++++++++++
882

    
883
The configuration query daemon (``ganeti-confd``) is now optional, and
884
has been rewritten in Haskell; whether to use the daemon at all, use the
885
Python (default) or the Haskell version is selectable at configure time
886
via the ``--enable-confd`` parameter, which can take one of the
887
``haskell``, ``python`` or ``no`` values. If not used, disabling the
888
daemon will result in a smaller footprint; for larger systems, we
889
welcome feedback on the Haskell version which might become the default
890
in future versions.
891

    
892
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
893
daemon running. The Python version doesn't implement the new call.
894

    
895

    
896
User interface changes
897
~~~~~~~~~~~~~~~~~~~~~~
898

    
899
We have replaced the ``--disks`` option of ``gnt-instance
900
replace-disks`` with a more flexible ``--disk`` option, which allows
901
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
902
disk size and mode can be changed upon recreation (via ``gnt-instance
903
recreate-disks``, which accepts the same ``--disk`` option).
904

    
905
As many people are used to a ``show`` command, we have added that as an
906
alias to ``info`` on all ``gnt-*`` commands.
907

    
908
The ``gnt-instance grow-disk`` command has a new mode in which it can
909
accept the target size of the disk, instead of the delta; this can be
910
more safe since two runs in absolute mode will be idempotent, and
911
sometimes it's also easier to specify the desired size directly.
912

    
913
Also the handling of instances with regard to offline secondaries has
914
been improved. Instance operations should not fail because one of it's
915
secondary nodes is offline, even though it's safe to proceed.
916

    
917
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
918
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
919
minors to instance name.
920

    
921
API changes
922
~~~~~~~~~~~
923

    
924
RAPI coverage has improved, with (for example) new resources for
925
recreate-disks, node power-cycle, etc.
926

    
927
Compatibility
928
~~~~~~~~~~~~~
929

    
930
There is partial support for ``xl`` in the Xen hypervisor; feedback is
931
welcome.
932

    
933
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
934
whether to still support Python 2.4 or move to Python 2.6 as minimum
935
required version.
936

    
937
Support for Fedora has been slightly improved; the provided example
938
init.d script should work better on it and the INSTALL file should
939
document the needed dependencies.
940

    
941
Internal changes
942
~~~~~~~~~~~~~~~~
943

    
944
The deprecated ``QueryLocks`` LUXI request has been removed. Use
945
``Query(what=QR_LOCK, ...)`` instead.
946

    
947
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
948
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
949
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
950
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
951
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
952

    
953
RAPI client: ``CertificateError`` now derives from
954
``GanetiApiError``. This should make it more easy to handle Ganeti
955
errors.
956

    
957
Deprecation warnings due to PyCrypto/paramiko import in
958
``tools/setup-ssh`` have been silenced, as usually they are safe; please
959
make sure to run an up-to-date paramiko version, if you use this tool.
960

    
961
The QA scripts now depend on Python 2.5 or above (the main code base
962
still works with Python 2.4).
963

    
964
The configuration file (``config.data``) is now written without
965
indentation for performance reasons; if you want to edit it, it can be
966
re-formatted via ``tools/fmtjson``.
967

    
968
A number of bugs has been fixed in the cluster merge tool.
969

    
970
``x509`` certification verification (used in import-export) has been
971
changed to allow the same clock skew as permitted by the cluster
972
verification. This will remove some rare but hard to diagnose errors in
973
import-export.
974

    
975

    
976
Version 2.6.0 rc4
977
-----------------
978

    
979
*(Released Thu, 19 Jul 2012)*
980

    
981
Very few changes from rc4 to the final release, only bugfixes:
982

    
983
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
984
  instance, fix CDROM booting for KVM instances)
985
- fixed node group modification of node parameters
986
- fixed issue in LUClusterVerifyGroup with multi-group clusters
987
- fixed generation of bash completion to ensure a stable ordering
988
- fixed a few typos
989

    
990

    
991
Version 2.6.0 rc3
992
-----------------
993

    
994
*(Released Fri, 13 Jul 2012)*
995

    
996
Third release candidate for 2.6. The following changes were done from
997
rc3 to rc4:
998

    
999
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
1000
- Fixed an inconsistency in the LUXI protocol with the provided
1001
  arguments (NOT backwards compatible)
1002
- Fixed a bug with node groups ipolicy where ``min`` was greater than
1003
  the cluster ``std`` value
1004
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
1005
  easier instance debugging on nodes (requires ``hconfd`` to work)
1006

    
1007

    
1008
Version 2.6.0 rc2
1009
-----------------
1010

    
1011
*(Released Tue, 03 Jul 2012)*
1012

    
1013
Second release candidate for 2.6. The following changes were done from
1014
rc2 to rc3:
1015

    
1016
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
1017
  master candidates
1018
- Fixed a RAPI regression on missing beparams/memory
1019
- Fixed redistribution of files on offline nodes
1020
- Added possibility to run activate-disks even though secondaries are
1021
  offline. With this change it relaxes also the strictness on some other
1022
  commands which use activate disks internally:
1023
  * ``gnt-instance start|reboot|rename|backup|export``
1024
- Made it possible to remove safely an instance if its secondaries are
1025
  offline
1026
- Made it possible to reinstall even though secondaries are offline
1027

    
1028

    
1029
Version 2.6.0 rc1
1030
-----------------
1031

    
1032
*(Released Mon, 25 Jun 2012)*
1033

    
1034
First release candidate for 2.6. The following changes were done from
1035
rc1 to rc2:
1036

    
1037
- Fixed bugs with disk parameters and ``rbd`` templates as well as
1038
  ``instance_os_add``
1039
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
1040
  behaviour. It supports now the modify operation
1041
- ``hcheck`` implemented to analyze cluster health and possibility of
1042
  improving health by rebalance
1043
- ``hbal`` has been improved in dealing with split instances
1044

    
1045

    
1046
Version 2.6.0 beta2
1047
-------------------
1048

    
1049
*(Released Mon, 11 Jun 2012)*
1050

    
1051
Second beta release of 2.6. The following changes were done from beta2
1052
to rc1:
1053

    
1054
- Fixed ``daemon-util`` with non-root user models
1055
- Fixed creation of plain instances with ``--no-wait-for-sync``
1056
- Fix wrong iv_names when running ``cfgupgrade``
1057
- Export more information in RAPI group queries
1058
- Fixed bug when changing instance network interfaces
1059
- Extended burnin to do NIC changes
1060
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
1061
- Changed default for DRBD barriers
1062
- Fixed DRBD error reporting for syncer rate
1063
- Verify the options on disk parameters
1064

    
1065
And of course various fixes to documentation and improved unittests and
1066
QA.
1067

    
1068

    
1069
Version 2.6.0 beta1
1070
-------------------
1071

    
1072
*(Released Wed, 23 May 2012)*
1073

    
1074
First beta release of 2.6. The following changes were done from beta1 to
1075
beta2:
1076

    
1077
- integrated patch for distributions without ``start-stop-daemon``
1078
- adapted example init.d script to work on Fedora
1079
- fixed log handling in Haskell daemons
1080
- adapted checks in the watcher for pycurl linked against libnss
1081
- add partial support for ``xl`` instead of ``xm`` for Xen
1082
- fixed a type issue in cluster verification
1083
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
1084
  clusters)
1085

    
1086
Plus integrated fixes from the 2.5 branch:
1087

    
1088
- fixed ``kvm-ifup`` to use ``/bin/bash``
1089
- fixed parallel build failures
1090
- KVM live migration when using a custom keymap
1091

    
1092

    
1093
Version 2.5.2
1094
-------------
1095

    
1096
*(Released Tue, 24 Jul 2012)*
1097

    
1098
A small bugfix release, with no new features:
1099

    
1100
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
1101
  different default shell (e.g. Debian, Ubuntu)
1102
- fixed KVM startup and live migration with a custom keymap (fixes Issue
1103
  243 and Debian bug #650664)
1104
- fixed compatibility with KVM versions that don't support multiple boot
1105
  devices (fixes Issue 230 and Debian bug #624256)
1106

    
1107
Additionally, a few fixes were done to the build system (fixed parallel
1108
build failures) and to the unittests (fixed race condition in test for
1109
FileID functions, and the default enable/disable mode for QA test is now
1110
customisable).
1111

    
1112

    
1113
Version 2.5.1
1114
-------------
1115

    
1116
*(Released Fri, 11 May 2012)*
1117

    
1118
A small bugfix release.
1119

    
1120
The main issues solved are on the topic of compatibility with newer LVM
1121
releases:
1122

    
1123
- fixed parsing of ``lv_attr`` field
1124
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
1125
  the ``--force`` flag is needed
1126

    
1127
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
1128
to accept kernel 3.x too (was hardcoded to 2.6.*).
1129

    
1130
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
1131
of hook results and that also made display of other errors suboptimal
1132
was fixed; the code behaves now like 2.4 and earlier.
1133

    
1134
Another change in 2.5, the cleanup of the OS scripts environment, is too
1135
aggressive: it removed even the ``PATH`` variable, which requires the OS
1136
scripts to *always* need to export it. Since this is a bit too strict,
1137
we now export a minimal PATH, the same that we export for hooks.
1138

    
1139
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
1140
integrated into this release.
1141

    
1142
Finally, a few other miscellaneous changes were done (no new features,
1143
just small improvements):
1144

    
1145
- Fix ``gnt-group --help`` display
1146
- Fix hardcoded Xen kernel path
1147
- Fix grow-disk handling of invalid units
1148
- Update synopsis for ``gnt-cluster repair-disk-sizes``
1149
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
1150

    
1151

    
1152
Version 2.5.0
1153
-------------
1154

    
1155
*(Released Thu, 12 Apr 2012)*
1156

    
1157
Incompatible/important changes and bugfixes
1158
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1159

    
1160
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
1161
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
1162
  to match the underlying LUXI interface.
1163
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
1164
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
1165
  not maintain backwards-compatibility as the underlying operation
1166
  changed in an incompatible way. The RAPI client can talk to old
1167
  servers, but it needs to be told so as the return value changed.
1168
- When creating file-based instances via RAPI, the ``file_driver``
1169
  parameter no longer defaults to ``loop`` and must be specified.
1170
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
1171
  ``link`` instead.
1172
- Support for the undocumented and deprecated RAPI instance creation
1173
  request format version 0 has been dropped. Use version 1, supported
1174
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
1175
- Pyparsing 1.4.6 or above is required, see :doc:`installation
1176
  documentation <install>`.
1177
- The "cluster-verify" hooks are now executed per group by the
1178
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
1179
  if you just run ``gnt-cluster verify``, which generates one opcode per
1180
  group.
1181
- The environment as passed to the OS scripts is cleared, and thus no
1182
  environment variables defined in the node daemon's environment will be
1183
  inherited by the scripts.
1184
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
1185
  deprecated.
1186
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
1187
  support operations involving multiple node groups.
1188
- Offline nodes are ignored when failing over an instance.
1189
- Support for KVM version 1.0, which changed the version reporting format
1190
  from 3 to 2 digits.
1191
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
1192
  removal.
1193
- ``Makefile`` is now compatible with Automake 1.11.2
1194
- Includes all bugfixes made in the 2.4 series
1195

    
1196
New features
1197
~~~~~~~~~~~~
1198

    
1199
- The ganeti-htools project has been merged into the ganeti-core source
1200
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
1201
- Implemented support for :doc:`shared storage <design-shared-storage>`.
1202
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
1203
  GPT-style partition tables (requires `parted
1204
  <http://www.gnu.org/s/parted/>`_).
1205
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
1206
- Allowed adding tags on instance creation.
1207
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
1208
- Allow instances to be started in a paused state, enabling the user to
1209
  see the complete console output on boot using the console.
1210
- Added new hypervisor flag to control default reboot behaviour
1211
  (``reboot_behavior``).
1212
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
1213
- Improved out-of-band management support:
1214

    
1215
  - Added ``gnt-node health`` command reporting the health status of
1216
    nodes.
1217
  - Added ``gnt-node power`` command to manage power status of nodes.
1218
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
1219

    
1220
- Instance migration can fall back to failover if instance is not
1221
  running.
1222
- Filters can be used when listing nodes, instances, groups and locks;
1223
  see :manpage:`ganeti(7)` manpage.
1224
- Added post-execution status as variables to :doc:`hooks <hooks>`
1225
  environment.
1226
- Instance tags are exported/imported together with the instance.
1227
- When given an explicit job ID, ``gnt-job info`` will work for archived
1228
  jobs.
1229
- Jobs can define dependencies on other jobs (not yet supported via
1230
  RAPI or command line, but used by internal commands and usable via
1231
  LUXI).
1232

    
1233
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
1234
    dependencies.
1235

    
1236
- Instance failover is now available as a RAPI resource
1237
  (``/2/instances/[instance_name]/failover``).
1238
- ``gnt-instance info`` defaults to static information if primary node
1239
  is offline.
1240
- Opcodes have a new ``comment`` attribute.
1241
- Added basic SPICE support to KVM hypervisor.
1242
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
1243

    
1244
Node group improvements
1245
~~~~~~~~~~~~~~~~~~~~~~~
1246

    
1247
- ``gnt-cluster verify`` has been modified to check groups separately,
1248
  thereby improving performance.
1249
- Node group support has been added to ``gnt-cluster verify-disks``,
1250
  which now operates per node group.
1251
- Watcher has been changed to work better with node groups.
1252

    
1253
  - One process and state file per node group.
1254
  - Slow watcher in one group doesn't block other group's watcher.
1255

    
1256
- Added new command, ``gnt-group evacuate``, to move all instances in a
1257
  node group to other groups.
1258
- Added ``gnt-instance change-group`` to move an instance to another
1259
  node group.
1260
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
1261
  per-group operations.
1262
- Node groups can be tagged.
1263
- Some operations switch from an exclusive to a shared lock as soon as
1264
  possible.
1265
- Instance's primary and secondary nodes' groups are now available as
1266
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
1267
  and ``snodes.group.uuid``).
1268

    
1269
Misc
1270
~~~~
1271

    
1272
- Numerous updates to documentation and manpages.
1273

    
1274
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
1275
    descriptions.
1276
  - Some opcode/job results are now also documented, see :doc:`RAPI
1277
    <rapi>`.
1278

    
1279
- A lockset's internal lock is now also visible in lock monitor.
1280
- Log messages from job queue workers now contain information about the
1281
  opcode they're processing.
1282
- ``gnt-instance console`` no longer requires the instance lock.
1283
- A short delay when waiting for job changes reduces the number of LUXI
1284
  requests significantly.
1285
- DRBD metadata volumes are overwritten with zeros during disk creation.
1286
- Out-of-band commands no longer acquire the cluster lock in exclusive
1287
  mode.
1288
- ``devel/upload`` now uses correct permissions for directories.
1289

    
1290

    
1291
Version 2.5.0 rc6
1292
-----------------
1293

    
1294
*(Released Fri, 23 Mar 2012)*
1295

    
1296
This was the sixth release candidate of the 2.5 series.
1297

    
1298

    
1299
Version 2.5.0 rc5
1300
-----------------
1301

    
1302
*(Released Mon, 9 Jan 2012)*
1303

    
1304
This was the fifth release candidate of the 2.5 series.
1305

    
1306

    
1307
Version 2.5.0 rc4
1308
-----------------
1309

    
1310
*(Released Thu, 27 Oct 2011)*
1311

    
1312
This was the fourth release candidate of the 2.5 series.
1313

    
1314

    
1315
Version 2.5.0 rc3
1316
-----------------
1317

    
1318
*(Released Wed, 26 Oct 2011)*
1319

    
1320
This was the third release candidate of the 2.5 series.
1321

    
1322

    
1323
Version 2.5.0 rc2
1324
-----------------
1325

    
1326
*(Released Tue, 18 Oct 2011)*
1327

    
1328
This was the second release candidate of the 2.5 series.
1329

    
1330

    
1331
Version 2.5.0 rc1
1332
-----------------
1333

    
1334
*(Released Tue, 4 Oct 2011)*
1335

    
1336
This was the first release candidate of the 2.5 series.
1337

    
1338

    
1339
Version 2.5.0 beta3
1340
-------------------
1341

    
1342
*(Released Wed, 31 Aug 2011)*
1343

    
1344
This was the third beta release of the 2.5 series.
1345

    
1346

    
1347
Version 2.5.0 beta2
1348
-------------------
1349

    
1350
*(Released Mon, 22 Aug 2011)*
1351

    
1352
This was the second beta release of the 2.5 series.
1353

    
1354

    
1355
Version 2.5.0 beta1
1356
-------------------
1357

    
1358
*(Released Fri, 12 Aug 2011)*
1359

    
1360
This was the first beta release of the 2.5 series.
1361

    
1362

    
1363
Version 2.4.5
1364
-------------
1365

    
1366
*(Released Thu, 27 Oct 2011)*
1367

    
1368
- Fixed bug when parsing command line parameter values ending in
1369
  backslash
1370
- Fixed assertion error after unclean master shutdown
1371
- Disable HTTP client pool for RPC, significantly reducing memory usage
1372
  of master daemon
1373
- Fixed queue archive creation with wrong permissions
1374

    
1375

    
1376
Version 2.4.4
1377
-------------
1378

    
1379
*(Released Tue, 23 Aug 2011)*
1380

    
1381
Small bug-fixes:
1382

    
1383
- Fixed documentation for importing with ``--src-dir`` option
1384
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
1385
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
1386

    
1387

    
1388
Version 2.4.3
1389
-------------
1390

    
1391
*(Released Fri, 5 Aug 2011)*
1392

    
1393
Many bug-fixes and a few small features:
1394

    
1395
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
1396
  issues when you tried to add an instance with two MAC addresses in one
1397
  request
1398
- KVM: fixed per-instance stored UID value
1399
- KVM: configure bridged NICs at migration start
1400
- KVM: Fix a bug where instance will not start with never KVM versions
1401
  (>= 0.14)
1402
- Added OS search path to ``gnt-cluster info``
1403
- Fixed an issue with ``file_storage_dir`` where you were forced to
1404
  provide an absolute path, but the documentation states it is a
1405
  relative path, the documentation was right
1406
- Added a new parameter to instance stop/start called ``--no-remember``
1407
  that will make the state change to not be remembered
1408
- Implemented ``no_remember`` at RAPI level
1409
- Improved the documentation
1410
- Node evacuation: don't call IAllocator if node is already empty
1411
- Fixed bug in DRBD8 replace disks on current nodes
1412
- Fixed bug in recreate-disks for DRBD instances
1413
- Moved assertion checking locks in ``gnt-instance replace-disks``
1414
  causing it to abort with not owning the right locks for some situation
1415
- Job queue: Fixed potential race condition when cancelling queued jobs
1416
- Fixed off-by-one bug in job serial generation
1417
- ``gnt-node volumes``: Fix instance names
1418
- Fixed aliases in bash completion
1419
- Fixed a bug in reopening log files after being sent a SIGHUP
1420
- Added a flag to burnin to allow specifying VCPU count
1421
- Bugfixes to non-root Ganeti configuration
1422

    
1423

    
1424
Version 2.4.2
1425
-------------
1426

    
1427
*(Released Thu, 12 May 2011)*
1428

    
1429
Many bug-fixes and a few new small features:
1430

    
1431
- Fixed a bug related to log opening failures
1432
- Fixed a bug in instance listing with orphan instances
1433
- Fixed a bug which prevented resetting the cluster-level node parameter
1434
  ``oob_program`` to the default
1435
- Many fixes related to the ``cluster-merge`` tool
1436
- Fixed a race condition in the lock monitor, which caused failures
1437
  during (at least) creation of many instances in parallel
1438
- Improved output for gnt-job info
1439
- Removed the quiet flag on some ssh calls which prevented debugging
1440
  failures
1441
- Improved the N+1 failure messages in cluster verify by actually
1442
  showing the memory values (needed and available)
1443
- Increased lock attempt timeouts so that when executing long operations
1444
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
1445
  too early and thus prevent the use of the 'fair' mechanism
1446
- Changed instance query data (``gnt-instance info``) to not acquire
1447
  locks unless needed, thus allowing its use on locked instance if only
1448
  static information is asked for
1449
- Improved behaviour with filesystems that do not support rename on an
1450
  opened file
1451
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
1452
  kept locks on all nodes during the wipe, which is unneeded
1453
- Fixed ``gnt-watcher`` handling of errors during hooks execution
1454
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
1455
  10GiB) which caused the wipe to fail right at the end in some cases
1456
- Fixed master IP activation when doing master failover with no-voting
1457
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
1458
  the master node itself
1459
- Fixed potential data-loss in under disk full conditions, where Ganeti
1460
  wouldn't check correctly the return code and would consider
1461
  partially-written files 'correct'
1462
- Fixed bug related to multiple VGs and DRBD disk replacing
1463
- Added new disk parameter ``metavg`` that allows placement of the meta
1464
  device for DRBD in a different volume group
1465
- Fixed error handling in the node daemon when the system libc doesn't
1466
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
1467
- Fixed lock release during replace-disks, which kept cluster-wide locks
1468
  when doing disk replaces with an iallocator script
1469
- Added check for missing bridges in cluster verify
1470
- Handle EPIPE errors while writing to the terminal better, so that
1471
  piping the output to e.g. ``less`` doesn't cause a backtrace
1472
- Fixed rare case where a ^C during Luxi calls could have been
1473
  interpreted as server errors, instead of simply terminating
1474
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
1475
  assign-nodes``)
1476
- Added a few more parameters to the KVM hypervisor, allowing a second
1477
  CDROM, custom disk type for CDROMs and a floppy image
1478
- Removed redundant message in instance rename when the name is given
1479
  already as a FQDN
1480
- Added option to ``gnt-instance recreate-disks`` to allow creating the
1481
  disks on new nodes, allowing recreation when the original instance
1482
  nodes are completely gone
1483
- Added option when converting disk templates to DRBD to skip waiting
1484
  for the resync, in order to make the instance available sooner
1485
- Added two new variables to the OS scripts environment (containing the
1486
  instance's nodes)
1487
- Made the root_path and optional parameter for the xen-pvm hypervisor,
1488
  to allow use of ``pvgrub`` as bootloader
1489
- Changed the instance memory modifications to only check out-of-memory
1490
  conditions on memory increases, and turned the secondary node warnings
1491
  into errors (they can still be overridden via ``--force``)
1492
- Fixed the handling of a corner case when the Python installation gets
1493
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
1494
  to execute a command that doesn't exist
1495
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
1496
  node of the instance returned failures during instance shutdown; this
1497
  adds the option ``--ignore-consistency`` to gnt-instance move
1498

    
1499
And as usual, various improvements to the error messages, documentation
1500
and man pages.
1501

    
1502

    
1503
Version 2.4.1
1504
-------------
1505

    
1506
*(Released Wed, 09 Mar 2011)*
1507

    
1508
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
1509
the RAPI users file if run twice (even with ``--dry-run``).
1510

    
1511
The release fixes that bug (nothing else changed).
1512

    
1513

    
1514
Version 2.4.0
1515
-------------
1516

    
1517
*(Released Mon, 07 Mar 2011)*
1518

    
1519
Final 2.4.0 release. Just a few small fixes:
1520

    
1521
- Fixed RAPI node evacuate
1522
- Fixed the kvm-ifup script
1523
- Fixed internal error handling for special job cases
1524
- Updated man page to specify the escaping feature for options
1525

    
1526

    
1527
Version 2.4.0 rc3
1528
-----------------
1529

    
1530
*(Released Mon, 28 Feb 2011)*
1531

    
1532
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1533
that this feature wiped the disks of the wrong instance, leading to loss
1534
of data.
1535

    
1536
Other changes:
1537

    
1538
- Fixed title of query field containing instance name
1539
- Expanded the glossary in the documentation
1540
- Fixed one unittest (internal issue)
1541

    
1542

    
1543
Version 2.4.0 rc2
1544
-----------------
1545

    
1546
*(Released Mon, 21 Feb 2011)*
1547

    
1548
A number of bug fixes plus just a couple functionality changes.
1549

    
1550
On the user-visible side, the ``gnt-* list`` command output has changed
1551
with respect to "special" field states. The current rc1 style of display
1552
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1553
the default output mode special fields states are displayed as follows:
1554

    
1555
- Offline resource: ``*``
1556
- Unavailable/not applicable: ``-``
1557
- Data missing (RPC failure): ``?``
1558
- Unknown field: ``??``
1559

    
1560
Another user-visible change is the addition of ``--force-join`` to
1561
``gnt-node add``.
1562

    
1563
As for bug fixes:
1564

    
1565
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
1566
- Fixed regression in RAPI/instance reinstall where all parameters were
1567
  required (instead of optional)
1568
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1569
- Fixed iallocator usage (offline nodes were not considered offline)
1570
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1571
- Fixed hypervisor and OS parameter validation with respect to
1572
  non-vm_capable nodes
1573
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1574
  cosmetic)
1575
- Fixed ``tools/listrunner`` with respect to agent-based usage
1576

    
1577

    
1578
Version 2.4.0 rc1
1579
-----------------
1580

    
1581
*(Released Fri,  4 Feb 2011)*
1582

    
1583
Many changes and fixes since the beta1 release. While there were some
1584
internal changes, the code has been mostly stabilised for the RC
1585
release.
1586

    
1587
Note: the dumb allocator was removed in this release, as it was not kept
1588
up-to-date with the IAllocator protocol changes. It is recommended to
1589
use the ``hail`` command from the ganeti-htools package.
1590

    
1591
Note: the 2.4 and up versions of Ganeti are not compatible with the
1592
0.2.x branch of ganeti-htools. You need to upgrade to
1593
ganeti-htools-0.3.0 (or later).
1594

    
1595
Regressions fixed from 2.3
1596
~~~~~~~~~~~~~~~~~~~~~~~~~~
1597

    
1598
- Fixed the ``gnt-cluster verify-disks`` command
1599
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1600
  serially on nodes)
1601
- Fixed disk adoption breakage
1602
- Fixed wrong headers in instance listing for field aliases
1603

    
1604
Other bugs fixed
1605
~~~~~~~~~~~~~~~~
1606

    
1607
- Fixed corner case in KVM handling of NICs
1608
- Fixed many cases of wrong handling of non-vm_capable nodes
1609
- Fixed a bug where a missing instance symlink was not possible to
1610
  recreate with any ``gnt-*`` command (now ``gnt-instance
1611
  activate-disks`` does it)
1612
- Fixed the volume group name as reported by ``gnt-cluster
1613
  verify-disks``
1614
- Increased timeouts for the import-export code, hopefully leading to
1615
  fewer aborts due network or instance timeouts
1616
- Fixed bug in ``gnt-node list-storage``
1617
- Fixed bug where not all daemons were started on cluster
1618
  initialisation, but only at the first watcher run
1619
- Fixed many bugs in the OOB implementation
1620
- Fixed watcher behaviour in presence of instances with offline
1621
  secondaries
1622
- Fixed instance list output for instances running on the wrong node
1623
- a few fixes to the cluster-merge tool, but it still cannot merge
1624
  multi-node groups (currently it is not recommended to use this tool)
1625

    
1626

    
1627
Improvements
1628
~~~~~~~~~~~~
1629

    
1630
- Improved network configuration for the KVM hypervisor
1631
- Added e1000 as a supported NIC for Xen-HVM
1632
- Improved the lvmstrap tool to also be able to use partitions, as
1633
  opposed to full disks
1634
- Improved speed of disk wiping (the cluster parameter
1635
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1636
  of instance creations
1637
- Added documentation for the OS parameters
1638
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1639
  hypervisor is not responding
1640
- Added display of blacklisted and hidden OS information in
1641
  ``gnt-cluster info``
1642
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1643
  NIC and node parameters, which might create problems with currently
1644
  invalid (but undetected) configuration files, but prevents validation
1645
  failures when unrelated parameters are modified
1646
- Changed cluster initialisation to wait for the master daemon to become
1647
  available
1648
- Expanded the RAPI interface:
1649

    
1650
  - Added config redistribution resource
1651
  - Added activation/deactivation of instance disks
1652
  - Added export of console information
1653

    
1654
- Implemented log file reopening on SIGHUP, which allows using
1655
  logrotate(8) for the Ganeti log files
1656
- Added a basic OOB helper script as an example
1657

    
1658

    
1659
Version 2.4.0 beta1
1660
-------------------
1661

    
1662
*(Released Fri, 14 Jan 2011)*
1663

    
1664
User-visible
1665
~~~~~~~~~~~~
1666

    
1667
- Fixed timezone issues when formatting timestamps
1668
- Added support for node groups, available via ``gnt-group`` and other
1669
  commands
1670
- Added out-of-band framework and management, see :doc:`design
1671
  document <design-oob>`
1672
- Removed support for roman numbers from ``gnt-node list`` and
1673
  ``gnt-instance list``.
1674
- Allowed modification of master network interface via ``gnt-cluster
1675
  modify --master-netdev``
1676
- Accept offline secondaries while shutting down instance disks
1677
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1678
- Added support for multiple LVM volume groups
1679
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1680
  requested
1681
- Added commands to list available fields:
1682

    
1683
  - ``gnt-node list-fields``
1684
  - ``gnt-group list-fields``
1685
  - ``gnt-instance list-fields``
1686

    
1687
- Updated documentation and man pages
1688

    
1689
Integration
1690
~~~~~~~~~~~
1691

    
1692
- Moved ``rapi_users`` file into separate directory, now named
1693
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1694
  symlink
1695
- Added new tool for running commands on many machines,
1696
  ``tools/ganeti-listrunner``
1697
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1698
  improving the ``gnt-instance console`` output
1699
- Allowed customisation of disk index separator at ``configure`` time
1700
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1701
- Added support for non-partitioned md disks in ``lvmstrap``
1702
- Added script to gracefully power off KVM instances
1703
- Split ``utils`` module into smaller parts
1704
- Changed query operations to return more detailed information, e.g.
1705
  whether an information is unavailable due to an offline node. To use
1706
  this new functionality, the LUXI call ``Query`` must be used. Field
1707
  information is now stored by the master daemon and can be retrieved
1708
  using ``QueryFields``. Instances, nodes and groups can also be queried
1709
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1710
  exposed via RAPI). The following commands make use of this
1711
  infrastructure change:
1712

    
1713
  - ``gnt-group list``
1714
  - ``gnt-group list-fields``
1715
  - ``gnt-node list``
1716
  - ``gnt-node list-fields``
1717
  - ``gnt-instance list``
1718
  - ``gnt-instance list-fields``
1719
  - ``gnt-debug locks``
1720

    
1721
Remote API
1722
~~~~~~~~~~
1723

    
1724
- New RAPI resources (see :doc:`rapi`):
1725

    
1726
  - ``/2/modify``
1727
  - ``/2/groups``
1728
  - ``/2/groups/[group_name]``
1729
  - ``/2/groups/[group_name]/assign-nodes``
1730
  - ``/2/groups/[group_name]/modify``
1731
  - ``/2/groups/[group_name]/rename``
1732
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1733

    
1734
- RAPI changes:
1735

    
1736
  - Implemented ``no_install`` for instance creation
1737
  - Implemented OS parameters for instance reinstallation, allowing
1738
    use of special settings on reinstallation (e.g. for preserving data)
1739

    
1740
Misc
1741
~~~~
1742

    
1743
- Added IPv6 support in import/export
1744
- Pause DRBD synchronization while wiping disks on instance creation
1745
- Updated unittests and QA scripts
1746
- Improved network parameters passed to KVM
1747
- Converted man pages from docbook to reStructuredText
1748

    
1749

    
1750
Version 2.3.1
1751
-------------
1752

    
1753
*(Released Mon, 20 Dec 2010)*
1754

    
1755
Released version 2.3.1~rc1 without any changes.
1756

    
1757

    
1758
Version 2.3.1 rc1
1759
-----------------
1760

    
1761
*(Released Wed, 1 Dec 2010)*
1762

    
1763
- impexpd: Disable OpenSSL compression in socat if possible (backport
1764
  from master, commit e90739d625b, see :doc:`installation guide
1765
  <install-quick>` for details)
1766
- Changed unittest coverage report to exclude test scripts
1767
- Added script to check version format
1768

    
1769

    
1770
Version 2.3.0
1771
-------------
1772

    
1773
*(Released Wed, 1 Dec 2010)*
1774

    
1775
Released version 2.3.0~rc1 without any changes.
1776

    
1777

    
1778
Version 2.3.0 rc1
1779
-----------------
1780

    
1781
*(Released Fri, 19 Nov 2010)*
1782

    
1783
A number of bugfixes and documentation updates:
1784

    
1785
- Update ganeti-os-interface documentation
1786
- Fixed a bug related to duplicate MACs or similar items which should be
1787
  unique
1788
- Fix breakage in OS state modify
1789
- Reinstall instance: disallow offline secondaries (fixes bug related to
1790
  OS changing but reinstall failing)
1791
- plus all the other fixes between 2.2.1 and 2.2.2
1792

    
1793

    
1794
Version 2.3.0 rc0
1795
-----------------
1796

    
1797
*(Released Tue, 2 Nov 2010)*
1798

    
1799
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1800
- Fixed master failover race with watcher
1801
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1802
  configuration
1803
- Accept previously stopped instance for export with instance removal
1804
- Simplify and extend the environment variables for instance OS scripts
1805
- Added new node flags, ``master_capable`` and ``vm_capable``
1806
- Added optional instance disk wiping prior during allocation. This is a
1807
  cluster-wide option and can be set/modified using
1808
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1809
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1810
  :doc:`install-quick`
1811
- Added a new watcher option (``--ignore-pause``)
1812
- Added option to ignore offline node on instance start/stop
1813
  (``--ignore-offline``)
1814
- Allow overriding OS parameters with ``gnt-instance reinstall``
1815
- Added ability to change node's secondary IP address using ``gnt-node
1816
  modify``
1817
- Implemented privilege separation for all daemons except
1818
  ``ganeti-noded``, see ``configure`` options
1819
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1820
  verify``
1821
- Implemented job priorities (see ``ganeti(7)`` manpage)
1822
- Ignore failures while shutting down instances during failover from
1823
  offline node
1824
- Exit daemon's bootstrap process only once daemon is ready
1825
- Export more information via ``LUInstanceQuery``/remote API
1826
- Improved documentation, QA and unittests
1827
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1828
  restart if the file was created or changed
1829
- Added LUXI protocol version sent with each request and response,
1830
  allowing detection of server/client mismatches
1831
- Moved the Python scripts among gnt-* and ganeti-* into modules
1832
- Moved all code related to setting up SSH to an external script,
1833
  ``setup-ssh``
1834
- Infrastructure changes for node group support in future versions
1835

    
1836

    
1837
Version 2.2.2
1838
-------------
1839

    
1840
*(Released Fri, 19 Nov 2010)*
1841

    
1842
A few small bugs fixed, and some improvements to the build system:
1843

    
1844
- Fix documentation regarding conversion to drbd
1845
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1846
  -B``)
1847
- Fix error handling in node modify with multiple changes
1848
- Allow remote imports without checked names
1849

    
1850

    
1851
Version 2.2.1
1852
-------------
1853

    
1854
*(Released Tue, 19 Oct 2010)*
1855

    
1856
- Disable SSL session ID cache in RPC client
1857

    
1858

    
1859
Version 2.2.1 rc1
1860
-----------------
1861

    
1862
*(Released Thu, 14 Oct 2010)*
1863

    
1864
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1865
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1866
  with GnuTLS
1867
- Fix problems with interaction between Curl and Python's HTTP server,
1868
  resulting in increased speed in many RPC calls
1869
- Improve our release script to prevent breakage with older aclocal and
1870
  Python 2.6
1871

    
1872

    
1873
Version 2.2.1 rc0
1874
-----------------
1875

    
1876
*(Released Thu, 7 Oct 2010)*
1877

    
1878
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1879
  value retrieved from master
1880
- Added support for blacklisted or hidden OS definitions
1881
- Added simple lock monitor (accessible via (``gnt-debug locks``)
1882
- Added support for -mem-path in KVM hypervisor abstraction layer
1883
- Allow overriding instance parameters in tool for inter-cluster
1884
  instance moves (``tools/move-instance``)
1885
- Improved opcode summaries (e.g. in ``gnt-job list``)
1886
- Improve consistency of OS listing by sorting it
1887
- Documentation updates
1888

    
1889

    
1890
Version 2.2.0.1
1891
---------------
1892

    
1893
*(Released Fri, 8 Oct 2010)*
1894

    
1895
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
1896

    
1897

    
1898
Version 2.2.0
1899
-------------
1900

    
1901
*(Released Mon, 4 Oct 2010)*
1902

    
1903
- Fixed regression in ``gnt-instance rename``
1904

    
1905

    
1906
Version 2.2.0 rc2
1907
-----------------
1908

    
1909
*(Released Wed, 22 Sep 2010)*
1910

    
1911
- Fixed OS_VARIANT variable for OS scripts
1912
- Fixed cluster tag operations via RAPI
1913
- Made ``setup-ssh`` exit with non-zero code if an error occurred
1914
- Disabled RAPI CA checks in watcher
1915

    
1916

    
1917
Version 2.2.0 rc1
1918
-----------------
1919

    
1920
*(Released Mon, 23 Aug 2010)*
1921

    
1922
- Support DRBD versions of the format "a.b.c.d"
1923
- Updated manpages
1924
- Re-introduce support for usage from multiple threads in RAPI client
1925
- Instance renames and modify via RAPI
1926
- Work around race condition between processing and archival in job
1927
  queue
1928
- Mark opcodes following failed one as failed, too
1929
- Job field ``lock_status`` was removed due to difficulties making it
1930
  work with the changed job queue in Ganeti 2.2; a better way to monitor
1931
  locks is expected for a later 2.2.x release
1932
- Fixed dry-run behaviour with many commands
1933
- Support ``ssh-agent`` again when adding nodes
1934
- Many additional bugfixes
1935

    
1936

    
1937
Version 2.2.0 rc0
1938
-----------------
1939

    
1940
*(Released Fri, 30 Jul 2010)*
1941

    
1942
Important change: the internal RPC mechanism between Ganeti nodes has
1943
changed from using a home-grown http library (based on the Python base
1944
libraries) to use the PycURL library. This requires that PycURL is
1945
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
1946
against GnuTLS by default. cURL's support for GnuTLS had known issues
1947
before cURL 7.21.0 and we recommend using the latest cURL release or
1948
linking against OpenSSL. Most other distributions already link PycURL
1949
and cURL against OpenSSL. The command::
1950

    
1951
  python -c 'import pycurl; print pycurl.version'
1952

    
1953
can be used to determine the libraries PycURL and cURL are linked
1954
against.
1955

    
1956
Other significant changes:
1957

    
1958
- Rewrote much of the internals of the job queue, in order to achieve
1959
  better parallelism; this decouples job query operations from the job
1960
  processing, and it should allow much nicer behaviour of the master
1961
  daemon under load, and it also has uncovered some long-standing bugs
1962
  related to the job serialisation (now fixed)
1963
- Added a default iallocator setting to the cluster parameters,
1964
  eliminating the need to always pass nodes or an iallocator for
1965
  operations that require selection of new node(s)
1966
- Added experimental support for the LXC virtualization method
1967
- Added support for OS parameters, which allows the installation of
1968
  instances to pass parameter to OS scripts in order to customise the
1969
  instance
1970
- Added a hypervisor parameter controlling the migration type (live or
1971
  non-live), since hypervisors have various levels of reliability; this
1972
  has renamed the 'live' parameter to 'mode'
1973
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
1974
  logical volumes, meaning that cluster verify will ignore them and not
1975
  flag their presence as errors
1976
- The watcher will now reset the error count for failed instances after
1977
  8 hours, thus allowing self-healing if the problem that caused the
1978
  instances to be down/fail to start has cleared in the meantime
1979
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
1980
  check for, and warn, if the drbd module parameter ``usermode_helper``
1981
  is not consistent with the cluster-wide setting; this is needed to
1982
  make diagnose easier of failed drbd creations
1983
- Started adding base IPv6 support, but this is not yet
1984
  enabled/available for use
1985
- Rename operations (cluster, instance) will now return the new name,
1986
  which is especially useful if a short name was passed in
1987
- Added support for instance migration in RAPI
1988
- Added a tool to pre-configure nodes for the SSH setup, before joining
1989
  them to the cluster; this will allow in the future a simplified model
1990
  for node joining (but not yet fully enabled in 2.2); this needs the
1991
  paramiko python library
1992
- Fixed handling of name-resolving errors
1993
- Fixed consistency of job results on the error path
1994
- Fixed master-failover race condition when executed multiple times in
1995
  sequence
1996
- Fixed many bugs related to the job queue (mostly introduced during the
1997
  2.2 development cycle, so not all are impacting 2.1)
1998
- Fixed instance migration with missing disk symlinks
1999
- Fixed handling of unknown jobs in ``gnt-job archive``
2000
- And many other small fixes/improvements
2001

    
2002
Internal changes:
2003

    
2004
- Enhanced both the unittest and the QA coverage
2005
- Switched the opcode validation to a generic model, and extended the
2006
  validation to all opcode parameters
2007
- Changed more parts of the code that write shell scripts to use the
2008
  same class for this
2009
- Switched the master daemon to use the asyncore library for the Luxi
2010
  server endpoint
2011

    
2012

    
2013
Version 2.2.0 beta0
2014
-------------------
2015

    
2016
*(Released Thu, 17 Jun 2010)*
2017

    
2018
- Added tool (``move-instance``) and infrastructure to move instances
2019
  between separate clusters (see :doc:`separate documentation
2020
  <move-instance>` and :doc:`design document <design-2.2>`)
2021
- Added per-request RPC timeout
2022
- RAPI now requires a Content-Type header for requests with a body (e.g.
2023
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
2024
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
2025
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
2026
  reachable
2027
- Implemented initial support for running Ganeti daemons as separate
2028
  users, see configure-time flags ``--with-user-prefix`` and
2029
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
2030
  time)
2031
- Instances can be removed after export (``gnt-backup export
2032
  --remove-instance``)
2033
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
2034
  key (instead of 1024 bit)
2035
- Added new cluster configuration file for cluster domain secret
2036
- Import/export now use SSL instead of SSH
2037
- Added support for showing estimated time when exporting an instance,
2038
  see the ``ganeti-os-interface(7)`` manpage and look for
2039
  ``EXP_SIZE_FD``
2040

    
2041

    
2042
Version 2.1.8
2043
-------------
2044

    
2045
*(Released Tue, 16 Nov 2010)*
2046

    
2047
Some more bugfixes. Unless critical bugs occur, this will be the last
2048
2.1 release:
2049

    
2050
- Fix case of MAC special-values
2051
- Fix mac checker regex
2052
- backend: Fix typo causing "out of range" error
2053
- Add missing --units in gnt-instance list man page
2054

    
2055

    
2056
Version 2.1.7
2057
-------------
2058

    
2059
*(Released Tue, 24 Aug 2010)*
2060

    
2061
Bugfixes only:
2062
  - Don't ignore secondary node silently on non-mirrored disk templates
2063
    (issue 113)
2064
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
2065
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
2066
  - Properly document the usb_mouse parameter
2067
  - Fix path in ganeti-rapi(8) (issue 116)
2068
  - Adjust error message when the ganeti user's .ssh directory is
2069
    missing
2070
  - Add same-node-check when changing the disk template to drbd
2071

    
2072

    
2073
Version 2.1.6
2074
-------------
2075

    
2076
*(Released Fri, 16 Jul 2010)*
2077

    
2078
Bugfixes only:
2079
  - Add an option to only select some reboot types during qa/burnin.
2080
    (on some hypervisors consequent reboots are not supported)
2081
  - Fix infrequent race condition in master failover. Sometimes the old
2082
    master ip address would be still detected as up for a short time
2083
    after it was removed, causing failover to fail.
2084
  - Decrease mlockall warnings when the ctypes module is missing. On
2085
    Python 2.4 we support running even if no ctypes module is installed,
2086
    but we were too verbose about this issue.
2087
  - Fix building on old distributions, on which man doesn't have a
2088
    --warnings option.
2089
  - Fix RAPI not to ignore the MAC address on instance creation
2090
  - Implement the old instance creation format in the RAPI client.
2091

    
2092

    
2093
Version 2.1.5
2094
-------------
2095

    
2096
*(Released Thu, 01 Jul 2010)*
2097

    
2098
A small bugfix release:
2099
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
2100
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
2101
    a non-existing option
2102
  - Fix instance create: the --force-variant option was ignored
2103
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
2104
  - Fix modify node storage with non-FQDN arguments
2105
  - Fix RAPI client to authenticate under Python 2.6 when used
2106
    for more than 5 requests needing authentication
2107
  - Fix gnt-instance modify -t (storage) giving a wrong error message
2108
    when converting a non-shutdown drbd instance to plain
2109

    
2110

    
2111
Version 2.1.4
2112
-------------
2113

    
2114
*(Released Fri, 18 Jun 2010)*
2115

    
2116
A small bugfix release:
2117

    
2118
  - Fix live migration of KVM instances started with older Ganeti
2119
    versions which had fewer hypervisor parameters
2120
  - Fix gnt-instance grow-disk on down instances
2121
  - Fix an error-reporting bug during instance migration
2122
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
2123
    silently ignoring broken ones
2124
  - Fix an RPC error reporting bug affecting, for example, RAPI client
2125
    users
2126
  - Fix bug triggered by different API version os-es on different nodes
2127
  - Fix a bug in instance startup with custom hvparams: OS level
2128
    parameters would fail to be applied.
2129
  - Fix the RAPI client under Python 2.6 (but more work is needed to
2130
    make it work completely well with OpenSSL)
2131
  - Fix handling of errors when resolving names from DNS
2132

    
2133

    
2134
Version 2.1.3
2135
-------------
2136

    
2137
*(Released Thu, 3 Jun 2010)*
2138

    
2139
A medium sized development cycle. Some new features, and some
2140
fixes/small improvements/cleanups.
2141

    
2142
Significant features
2143
~~~~~~~~~~~~~~~~~~~~
2144

    
2145
The node deamon now tries to mlock itself into memory, unless the
2146
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
2147
its logs, and falls back to console logging. This allows emergency
2148
features such as ``gnt-node powercycle`` to work even in the event of a
2149
broken node disk (tested offlining the disk hosting the node's
2150
filesystem and dropping its memory caches; don't try this at home)
2151

    
2152
KVM: add vhost-net acceleration support. It can be tested with a new
2153
enough version of the kernel and of qemu-kvm.
2154

    
2155
KVM: Add instance chrooting feature. If you use privilege dropping for
2156
your VMs you can also now force them to chroot to an empty directory,
2157
before starting the emulated guest.
2158

    
2159
KVM: Add maximum migration bandwith and maximum downtime tweaking
2160
support (requires a new-enough version of qemu-kvm).
2161

    
2162
Cluster verify will now warn if the master node doesn't have the master
2163
ip configured on it.
2164

    
2165
Add a new (incompatible) instance creation request format to RAPI which
2166
supports all parameters (previously only a subset was supported, and it
2167
wasn't possible to extend the old format to accomodate all the new
2168
features. The old format is still supported, and a client can check for
2169
this feature, before using it, by checking for its presence in the
2170
``features`` RAPI resource.
2171

    
2172
Now with ancient latin support. Try it passing the ``--roman`` option to
2173
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
2174
(requires the python-roman module to be installed, in order to work).
2175

    
2176
Other changes
2177
~~~~~~~~~~~~~
2178

    
2179
As usual many internal code refactorings, documentation updates, and
2180
such. Among others:
2181

    
2182
  - Lots of improvements and cleanups to the experimental Remote API
2183
    (RAPI) client library.
2184
  - A new unit test suite for the core daemon libraries.
2185
  - A fix to creating missing directories makes sure the umask is not
2186
    applied anymore. This enforces the same directory permissions
2187
    everywhere.
2188
  - Better handling terminating daemons with ctrl+c (used when running
2189
    them in debugging mode).
2190
  - Fix a race condition in live migrating a KVM instance, when stat()
2191
    on the old proc status file returned EINVAL, which is an unexpected
2192
    value.
2193
  - Fixed manpage checking with newer man and utf-8 charachters. But now
2194
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
2195

    
2196

    
2197
Version 2.1.2.1
2198
---------------
2199

    
2200
*(Released Fri, 7 May 2010)*
2201

    
2202
Fix a bug which prevented untagged KVM instances from starting.
2203

    
2204

    
2205
Version 2.1.2
2206
-------------
2207

    
2208
*(Released Fri, 7 May 2010)*
2209

    
2210
Another release with a long development cycle, during which many
2211
different features were added.
2212

    
2213
Significant features
2214
~~~~~~~~~~~~~~~~~~~~
2215

    
2216
The KVM hypervisor now can run the individual instances as non-root, to
2217
reduce the impact of a VM being hijacked due to bugs in the
2218
hypervisor. It is possible to run all instances as a single (non-root)
2219
user, to manually specify a user for each instance, or to dynamically
2220
allocate a user out of a cluster-wide pool to each instance, with the
2221
guarantee that no two instances will run under the same user ID on any
2222
given node.
2223

    
2224
An experimental RAPI client library, that can be used standalone
2225
(without the other Ganeti libraries), is provided in the source tree as
2226
``lib/rapi/client.py``. Note this client might change its interface in
2227
the future, as we iterate on its capabilities.
2228

    
2229
A new command, ``gnt-cluster renew-crypto`` has been added to easily
2230
replace the cluster's certificates and crypto keys. This might help in
2231
case they have been compromised, or have simply expired.
2232

    
2233
A new disk option for instance creation has been added that allows one
2234
to "adopt" currently existing logical volumes, with data
2235
preservation. This should allow easier migration to Ganeti from
2236
unmanaged (or managed via other software) instances.
2237

    
2238
Another disk improvement is the possibility to convert between redundant
2239
(DRBD) and plain (LVM) disk configuration for an instance. This should
2240
allow better scalability (starting with one node and growing the
2241
cluster, or shrinking a two-node cluster to one node).
2242

    
2243
A new feature that could help with automated node failovers has been
2244
implemented: if a node sees itself as offline (by querying the master
2245
candidates), it will try to shutdown (hard) all instances and any active
2246
DRBD devices. This reduces the risk of duplicate instances if an
2247
external script automatically failovers the instances on such nodes. To
2248
enable this, the cluster parameter ``maintain_node_health`` should be
2249
enabled; in the future this option (per the name) will enable other
2250
automatic maintenance features.
2251

    
2252
Instance export/import now will reuse the original instance
2253
specifications for all parameters; that means exporting an instance,
2254
deleting it and the importing it back should give an almost identical
2255
instance. Note that the default import behaviour has changed from
2256
before, where it created only one NIC; now it recreates the original
2257
number of NICs.
2258

    
2259
Cluster verify has added a few new checks: SSL certificates validity,
2260
/etc/hosts consistency across the cluster, etc.
2261

    
2262
Other changes
2263
~~~~~~~~~~~~~
2264

    
2265
As usual, many internal changes were done, documentation fixes,
2266
etc. Among others:
2267

    
2268
- Fixed cluster initialization with disabled cluster storage (regression
2269
  introduced in 2.1.1)
2270
- File-based storage supports growing the disks
2271
- Fixed behaviour of node role changes
2272
- Fixed cluster verify for some corner cases, plus a general rewrite of
2273
  cluster verify to allow future extension with more checks
2274
- Fixed log spamming by watcher and node daemon (regression introduced
2275
  in 2.1.1)
2276
- Fixed possible validation issues when changing the list of enabled
2277
  hypervisors
2278
- Fixed cleanup of /etc/hosts during node removal
2279
- Fixed RAPI response for invalid methods
2280
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
2281
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
2282
  from ide disks, etc.)
2283
- Allow OS changes without re-installation (to record a changed OS
2284
  outside of Ganeti, or to allow OS renames)
2285
- Allow instance creation without OS installation (useful for example if
2286
  the OS will be installed manually, or restored from a backup not in
2287
  Ganeti format)
2288
- Implemented option to make cluster ``copyfile`` use the replication
2289
  network
2290
- Added list of enabled hypervisors to ssconf (possibly useful for
2291
  external scripts)
2292
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
2293
  1.2 clusters
2294
- A partial form of node re-IP is possible via node readd, which now
2295
  allows changed node primary IP
2296
- Command line utilities now show an informational message if the job is
2297
  waiting for a lock
2298
- The logs of the master daemon now show the PID/UID/GID of the
2299
  connected client
2300

    
2301

    
2302
Version 2.1.1
2303
-------------
2304

    
2305
*(Released Fri, 12 Mar 2010)*
2306

    
2307
During the 2.1.0 long release candidate cycle, a lot of improvements and
2308
changes have accumulated with were released later as 2.1.1.
2309

    
2310
Major changes
2311
~~~~~~~~~~~~~
2312

    
2313
The node evacuate command (``gnt-node evacuate``) was significantly
2314
rewritten, and as such the IAllocator protocol was changed - a new
2315
request type has been added. This unfortunate change during a stable
2316
series is designed to improve performance of node evacuations; on
2317
clusters with more than about five nodes and which are well-balanced,
2318
evacuation should proceed in parallel for all instances of the node
2319
being evacuated. As such, any existing IAllocator scripts need to be
2320
updated, otherwise the above command will fail due to the unknown
2321
request. The provided "dumb" allocator has not been updated; but the
2322
ganeti-htools package supports the new protocol since version 0.2.4.
2323

    
2324
Another important change is increased validation of node and instance
2325
names. This might create problems in special cases, if invalid host
2326
names are being used.
2327

    
2328
Also, a new layer of hypervisor parameters has been added, that sits at
2329
OS level between the cluster defaults and the instance ones. This allows
2330
customisation of virtualization parameters depending on the installed
2331
OS. For example instances with OS 'X' may have a different KVM kernel
2332
(or any other parameter) than the cluster defaults. This is intended to
2333
help managing a multiple OSes on the same cluster, without manual
2334
modification of each instance's parameters.
2335

    
2336
A tool for merging clusters, ``cluster-merge``, has been added in the
2337
tools sub-directory.
2338

    
2339
Bug fixes
2340
~~~~~~~~~
2341

    
2342
- Improved the int/float conversions that should make the code more
2343
  robust in face of errors from the node daemons
2344
- Fixed the remove node code in case of internal configuration errors
2345
- Fixed the node daemon behaviour in face of inconsistent queue
2346
  directory (e.g. read-only file-system where we can't open the files
2347
  read-write, etc.)
2348
- Fixed the behaviour of gnt-node modify for master candidate demotion;
2349
  now it either aborts cleanly or, if given the new "auto_promote"
2350
  parameter, will automatically promote other nodes as needed
2351
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
2352
  completely prevent Ganeti from working
2353
- Fixed bug for instance export when not all disks were successfully
2354
  exported
2355
- Fixed behaviour of node add when the new node is slow in starting up
2356
  the node daemon
2357
- Fixed handling of signals in the LUXI client, which should improve
2358
  behaviour of command-line scripts
2359
- Added checks for invalid node/instance names in the configuration (now
2360
  flagged during cluster verify)
2361
- Fixed watcher behaviour for disk activation errors
2362
- Fixed two potentially endless loops in http library, which led to the
2363
  RAPI daemon hanging and consuming 100% CPU in some cases
2364
- Fixed bug in RAPI daemon related to hashed passwords
2365
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
2366
  instances
2367
- Enhanced compatibility with non-Debian OSes, but not using absolute
2368
  path in some commands and allowing customisation of the ssh
2369
  configuration directory
2370
- Fixed possible future issue with new Python versions by abiding to the
2371
  proper use of ``__slots__`` attribute on classes
2372
- Added checks that should prevent directory traversal attacks
2373
- Many documentation fixes based on feedback from users
2374

    
2375
New features
2376
~~~~~~~~~~~~
2377

    
2378
- Added an "early_release" more for instance replace disks and node
2379
  evacuate, where we release locks earlier and thus allow higher
2380
  parallelism within the cluster
2381
- Added watcher hooks, intended to allow the watcher to restart other
2382
  daemons (e.g. from the ganeti-nbma project), but they can be used of
2383
  course for any other purpose
2384
- Added a compile-time disable for DRBD barriers, to increase
2385
  performance if the administrator trusts the power supply or the
2386
  storage system to not lose writes
2387
- Added the option of using syslog for logging instead of, or in
2388
  addition to, Ganeti's own log files
2389
- Removed boot restriction for paravirtual NICs for KVM, recent versions
2390
  can indeed boot from a paravirtual NIC
2391
- Added a generic debug level for many operations; while this is not
2392
  used widely yet, it allows one to pass the debug value all the way to
2393
  the OS scripts
2394
- Enhanced the hooks environment for instance moves (failovers,
2395
  migrations) where the primary/secondary nodes changed during the
2396
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
2397
- Enhanced data validations for many user-supplied values; one important
2398
  item is the restrictions imposed on instance and node names, which
2399
  might reject some (invalid) host names
2400
- Add a configure-time option to disable file-based storage, if it's not
2401
  needed; this allows greater security separation between the master
2402
  node and the other nodes from the point of view of the inter-node RPC
2403
  protocol
2404
- Added user notification in interactive tools if job is waiting in the
2405
  job queue or trying to acquire locks
2406
- Added log messages when a job is waiting for locks
2407
- Added filtering by node tags in instance operations which admit
2408
  multiple instances (start, stop, reboot, reinstall)
2409
- Added a new tool for cluster mergers, ``cluster-merge``
2410
- Parameters from command line which are of the form ``a=b,c=d`` can now
2411
  use backslash escapes to pass in values which contain commas,
2412
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
2413
  ``b,c``
2414
- For KVM, the instance name is the first parameter passed to KVM, so
2415
  that it's more visible in the process list
2416

    
2417

    
2418
Version 2.1.0
2419
-------------
2420

    
2421
*(Released Tue, 2 Mar 2010)*
2422

    
2423
Ganeti 2.1 brings many improvements with it. Major changes:
2424

    
2425
- Added infrastructure to ease automated disk repairs
2426
- Added new daemon to export configuration data in a cheaper way than
2427
  using the remote API
2428
- Instance NICs can now be routed instead of being associated with a
2429
  networking bridge
2430
- Improved job locking logic to reduce impact of jobs acquiring multiple
2431
  locks waiting for other long-running jobs
2432

    
2433
In-depth implementation details can be found in the Ganeti 2.1 design
2434
document.
2435

    
2436
Details
2437
~~~~~~~
2438

    
2439
- Added chroot hypervisor
2440
- Added more options to xen-hvm hypervisor (``kernel_path`` and
2441
  ``device_model``)
2442
- Added more options to xen-pvm hypervisor (``use_bootloader``,
2443
  ``bootloader_path`` and ``bootloader_args``)
2444
- Added the ``use_localtime`` option for the xen-hvm and kvm
2445
  hypervisors, and the default value for this has changed to false (in
2446
  2.0 xen-hvm always enabled it)
2447
- Added luxi call to submit multiple jobs in one go
2448
- Added cluster initialization option to not modify ``/etc/hosts``
2449
  file on nodes
2450
- Added network interface parameters
2451
- Added dry run mode to some LUs
2452
- Added RAPI resources:
2453

    
2454
  - ``/2/instances/[instance_name]/info``
2455
  - ``/2/instances/[instance_name]/replace-disks``
2456
  - ``/2/nodes/[node_name]/evacuate``
2457
  - ``/2/nodes/[node_name]/migrate``
2458
  - ``/2/nodes/[node_name]/role``
2459
  - ``/2/nodes/[node_name]/storage``
2460
  - ``/2/nodes/[node_name]/storage/modify``
2461
  - ``/2/nodes/[node_name]/storage/repair``
2462

    
2463
- Added OpCodes to evacuate or migrate all instances on a node
2464
- Added new command to list storage elements on nodes (``gnt-node
2465
  list-storage``) and modify them (``gnt-node modify-storage``)
2466
- Added new ssconf files with master candidate IP address
2467
  (``ssconf_master_candidates_ips``), node primary IP address
2468
  (``ssconf_node_primary_ips``) and node secondary IP address
2469
  (``ssconf_node_secondary_ips``)
2470
- Added ``ganeti-confd`` and a client library to query the Ganeti
2471
  configuration via UDP
2472
- Added ability to run hooks after cluster initialization and before
2473
  cluster destruction
2474
- Added automatic mode for disk replace (``gnt-instance replace-disks
2475
  --auto``)
2476
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
2477
  after catastrophic data-loss
2478
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
2479
  groups
2480
- Added ``gnt-instance move`` command to move instances
2481
- Added ``gnt-cluster watcher`` command to control watcher
2482
- Added ``gnt-node powercycle`` command to powercycle nodes
2483
- Added new job status field ``lock_status``
2484
- Added parseable error codes to cluster verification (``gnt-cluster
2485
  verify --error-codes``) and made output less verbose (use
2486
  ``--verbose`` to restore previous behaviour)
2487
- Added UUIDs to the main config entities (cluster, nodes, instances)
2488
- Added support for OS variants
2489
- Added support for hashed passwords in the Ganeti remote API users file
2490
  (``rapi_users``)
2491
- Added option to specify maximum timeout on instance shutdown
2492
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
2493
- Added new helper script to start and stop Ganeti daemons
2494
  (``daemon-util``), with the intent to reduce the work necessary to
2495
  adjust Ganeti for non-Debian distributions and to start/stop daemons
2496
  from one place
2497
- Added more unittests
2498
- Fixed critical bug in ganeti-masterd startup
2499
- Removed the configure-time ``kvm-migration-port`` parameter, this is
2500
  now customisable at the cluster level for both the KVM and Xen
2501
  hypervisors using the new ``migration_port`` parameter
2502
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
2503
  reinstalling an instance
2504
- Allowed ``@`` in tag names
2505
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
2506
- Many documentation updates
2507
- Distribute hypervisor files on ``gnt-cluster redist-conf``
2508
- ``gnt-instance reinstall`` can now reinstall multiple instances
2509
- Updated many command line parameters
2510
- Introduced new OS API version 15
2511
- No longer support a default hypervisor
2512
- Treat virtual LVs as inexistent
2513
- Improved job locking logic to reduce lock contention
2514
- Match instance and node names case insensitively
2515
- Reimplemented bash completion script to be more complete
2516
- Improved burnin
2517

    
2518

    
2519
Version 2.0.6
2520
-------------
2521

    
2522
*(Released Thu, 4 Feb 2010)*
2523

    
2524
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2525
- Fix a string formatting bug
2526
- Improve safety of the code in some error paths
2527
- Improve data validation in the master of values returned from nodes
2528

    
2529

    
2530
Version 2.0.5
2531
-------------
2532

    
2533
*(Released Thu, 17 Dec 2009)*
2534

    
2535
- Fix security issue due to missing validation of iallocator names; this
2536
  allows local and remote execution of arbitrary executables
2537
- Fix failure of gnt-node list during instance removal
2538
- Ship the RAPI documentation in the archive
2539

    
2540

    
2541
Version 2.0.4
2542
-------------
2543

    
2544
*(Released Wed, 30 Sep 2009)*
2545

    
2546
- Fixed many wrong messages
2547
- Fixed a few bugs related to the locking library
2548
- Fixed MAC checking at instance creation time
2549
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
2550
- Fixed a few issues related to signal handling in both daemons and
2551
  scripts
2552
- Fixed the example startup script provided
2553
- Fixed insserv dependencies in the example startup script (patch from
2554
  Debian)
2555
- Fixed handling of drained nodes in the iallocator framework
2556
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2557
  #528618)
2558
- Fixed error related to invalid job IDs in job polling
2559
- Fixed job/opcode persistence on unclean master shutdown
2560
- Fixed handling of partial job processing after unclean master
2561
  shutdown
2562
- Fixed error reporting from LUs, previously all errors were converted
2563
  into execution errors
2564
- Fixed error reporting from burnin
2565
- Decreased significantly the memory usage of the job queue
2566
- Optimised slightly multi-job submission
2567
- Optimised slightly opcode loading
2568
- Backported the multi-job submit framework from the development
2569
  branch; multi-instance start and stop should be faster
2570
- Added script to clean archived jobs after 21 days; this will reduce
2571
  the size of the queue directory
2572
- Added some extra checks in disk size tracking
2573
- Added an example ethers hook script
2574
- Added a cluster parameter that prevents Ganeti from modifying of
2575
  /etc/hosts
2576
- Added more node information to RAPI responses
2577
- Added a ``gnt-job watch`` command that allows following the ouput of a
2578
  job
2579
- Added a bind-address option to ganeti-rapi
2580
- Added more checks to the configuration verify
2581
- Enhanced the burnin script such that some operations can be retried
2582
  automatically
2583
- Converted instance reinstall to multi-instance model
2584

    
2585

    
2586
Version 2.0.3
2587
-------------
2588

    
2589
*(Released Fri, 7 Aug 2009)*
2590

    
2591
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2592
  to allow using the pre-2.0.2 behaviour in activation, if any existing
2593
  instances have mismatched disk sizes in the configuration
2594
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
2595
  any configuration mismatches for disk sizes
2596
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2597
  failover to work on two-node clusters
2598
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2599
  unusable
2600
- Fixed detection of OS script errors in ``gnt-backup export``
2601
- Fixed exit code of ``gnt-backup export``
2602

    
2603

    
2604
Version 2.0.2
2605
-------------
2606

    
2607
*(Released Fri, 17 Jul 2009)*
2608

    
2609
- Added experimental support for stripped logical volumes; this should
2610
  enhance performance but comes with a higher complexity in the block
2611
  device handling; stripping is only enabled when passing
2612
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2613
  affected even in the non-stripped mode
2614
- Improved resiliency against transient failures at the end of DRBD
2615
  resyncs, and in general of DRBD resync checks
2616
- Fixed a couple of issues with exports and snapshot errors
2617
- Fixed a couple of issues in instance listing
2618
- Added display of the disk size in ``gnt-instance info``
2619
- Fixed checking for valid OSes in instance creation
2620
- Fixed handling of the "vcpus" parameter in instance listing and in
2621
  general of invalid parameters
2622
- Fixed http server library, and thus RAPI, to handle invalid
2623
  username/password combinations correctly; this means that now they
2624
  report unauthorized for queries too, not only for modifications,
2625
  allowing earlier detect of configuration problems
2626
- Added a new "role" node list field, equivalent to the master/master
2627
  candidate/drained/offline flags combinations
2628
- Fixed cluster modify and changes of candidate pool size
2629
- Fixed cluster verify error messages for wrong files on regular nodes
2630
- Fixed a couple of issues with node demotion from master candidate role
2631
- Fixed node readd issues
2632
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2633
- Added a new ``--no-voting`` option for masterfailover to fix failover
2634
  on two-nodes clusters when the former master node is unreachable
2635
- Added instance reinstall over RAPI
2636

    
2637

    
2638
Version 2.0.1
2639
-------------
2640

    
2641
*(Released Tue, 16 Jun 2009)*
2642

    
2643
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2644
  allow re-adding the start in single-user option (regression from 1.2)
2645
- the watcher writes the instance status to a file, to allow monitoring
2646
  to report the instance status (from the master) based on cached
2647
  results of the watcher's queries; while this can get stale if the
2648
  watcher is being locked due to other work on the cluster, this is
2649
  still an improvement
2650
- the watcher now also restarts the node daemon and the rapi daemon if
2651
  they died
2652
- fixed the watcher to handle full and drained queue cases
2653
- hooks export more instance data in the environment, which helps if
2654
  hook scripts need to take action based on the instance's properties
2655
  (no longer need to query back into ganeti)
2656
- instance failovers when the instance is stopped do not check for free
2657
  RAM, so that failing over a stopped instance is possible in low memory
2658
  situations
2659
- rapi uses queries for tags instead of jobs (for less job traffic), and
2660
  for cluster tags it won't talk to masterd at all but read them from
2661
  ssconf
2662
- a couple of error handling fixes in RAPI
2663
- drbd handling: improved the error handling of inconsistent disks after
2664
  resync to reduce the frequency of "there are some degraded disks for
2665
  this instance" messages
2666
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2667
  error handling path called a wrong function name)
2668

    
2669

    
2670
Version 2.0.0
2671
-------------
2672

    
2673
*(Released Wed, 27 May 2009)*
2674

    
2675
- no changes from rc5
2676

    
2677

    
2678
Version 2.0 rc5
2679
---------------
2680

    
2681
*(Released Wed, 20 May 2009)*
2682

    
2683
- fix a couple of bugs (validation, argument checks)
2684
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2685
- some small improvements to RAPI and IAllocator
2686
- make watcher automatically start the master daemon if down
2687

    
2688

    
2689
Version 2.0 rc4
2690
---------------
2691

    
2692
*(Released Mon, 27 Apr 2009)*
2693

    
2694
- change the OS list to not require locks; this helps with big clusters
2695
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2696
  volume group is broken
2697
- ``gnt-instance info``, without any arguments, doesn't run for all
2698
  instances anymore; either pass ``--all`` or pass the desired
2699
  instances; this helps against mistakes on big clusters where listing
2700
  the information for all instances takes a long time
2701
- miscellaneous doc and man pages fixes
2702

    
2703

    
2704
Version 2.0 rc3
2705
---------------
2706

    
2707
*(Released Wed, 8 Apr 2009)*
2708

    
2709
- Change the internal locking model of some ``gnt-node`` commands, in
2710
  order to reduce contention (and blocking of master daemon) when
2711
  batching many creation/reinstall jobs
2712
- Fixes to Xen soft reboot
2713
- No longer build documentation at build time, instead distribute it in
2714
  the archive, in order to reduce the need for the whole docbook/rst
2715
  toolchains
2716

    
2717

    
2718
Version 2.0 rc2
2719
---------------
2720

    
2721
*(Released Fri, 27 Mar 2009)*
2722

    
2723
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2724
- Fix watcher startup sequence, improves the behaviour of busy clusters
2725
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2726
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2727
  bind address and other places
2728
- Some documentation fixes and updates
2729

    
2730

    
2731
Version 2.0 rc1
2732
---------------
2733

    
2734
*(Released Mon, 2 Mar 2009)*
2735

    
2736
- More documentation updates, now all docs should be more-or-less
2737
  up-to-date
2738
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2739
  etc.)
2740
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2741
  and KVM)
2742
- Fix an issue related to $libdir/run/ganeti and cluster creation
2743

    
2744

    
2745
Version 2.0 beta2
2746
-----------------
2747

    
2748
*(Released Thu, 19 Feb 2009)*
2749

    
2750
- Xen PVM and KVM have switched the default value for the instance root
2751
  disk to the first partition on the first drive, instead of the whole
2752
  drive; this means that the OS installation scripts must be changed
2753
  accordingly
2754
- Man pages have been updated
2755
- RAPI has been switched by default to HTTPS, and the exported functions
2756
  should all work correctly
2757
- RAPI v1 has been removed
2758
- Many improvements to the KVM hypervisor
2759
- Block device errors are now better reported
2760
- Many other bugfixes and small improvements
2761

    
2762

    
2763
Version 2.0 beta1
2764
-----------------
2765

    
2766
*(Released Mon, 26 Jan 2009)*
2767

    
2768
- Version 2 is a general rewrite of the code and therefore the
2769
  differences are too many to list, see the design document for 2.0 in
2770
  the ``doc/`` subdirectory for more details
2771
- In this beta version there is not yet a migration path from 1.2 (there
2772
  will be one in the final 2.0 release)
2773
- A few significant changes are:
2774

    
2775
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2776
    various ``gnt-*`` commands are just front-ends to it
2777
  - all the commands are entered into, and executed from a job queue,
2778
    see the ``gnt-job(8)`` manpage
2779
  - the RAPI daemon supports read-write operations, secured by basic
2780
    HTTP authentication on top of HTTPS
2781
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2782
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2783
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2784
  - DRBD devices are using statically allocated minor numbers, which
2785
    will be assigned to existing instances during the migration process
2786
  - there is support for both Xen PVM and Xen HVM instances running on
2787
    the same cluster
2788
  - KVM virtualization is supported too
2789
  - file-based storage has been implemented, which means that it is
2790
    possible to run the cluster without LVM and DRBD storage, for
2791
    example using a shared filesystem exported from shared storage (and
2792
    still have live migration)
2793

    
2794

    
2795
Version 1.2.7
2796
-------------
2797

    
2798
*(Released Tue, 13 Jan 2009)*
2799

    
2800
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2801
- Reuse the old instance mac address by default on instance import, if
2802
  the instance name is the same.
2803
- Handle situations in which the node info rpc returns incomplete
2804
  results (issue 46)
2805
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2806
- Improved version of batcher:
2807

    
2808
  - state file support
2809
  - instance mac address support
2810
  - support for HVM clusters/instances
2811

    
2812
- Add an option to show the number of cpu sockets and nodes in
2813
  ``gnt-node list``
2814
- Support OSes that handle more than one version of the OS api (but do
2815
  not change the current API in any other way)
2816
- Fix ``gnt-node migrate``
2817
- ``gnt-debug`` man page
2818
- Fixes various more typos and small issues
2819
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2820

    
2821

    
2822
Version 1.2.6
2823
-------------
2824

    
2825
*(Released Wed, 24 Sep 2008)*
2826

    
2827
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2828
  type of disk exported to fully virtualized instances.
2829
- provide access to the serial console of HVM instances
2830
- instance auto_balance flag, set by default. If turned off it will
2831
  avoid warnings on cluster verify if there is not enough memory to fail
2832
  over an instance. in the future it will prevent automatically failing
2833
  it over when we will support that.
2834
- batcher tool for instance creation, see ``tools/README.batcher``
2835
- ``gnt-instance reinstall --select-os`` to interactively select a new
2836
  operating system when reinstalling an instance.
2837
- when changing the memory amount on instance modify a check has been
2838
  added that the instance will be able to start. also warnings are
2839
  emitted if the instance will not be able to fail over, if auto_balance
2840
  is true.
2841
- documentation fixes
2842
- sync fields between ``gnt-instance list/modify/add/import``
2843
- fix a race condition in drbd when the sync speed was set after giving
2844
  the device a remote peer.
2845

    
2846

    
2847
Version 1.2.5
2848
-------------
2849

    
2850
*(Released Tue, 22 Jul 2008)*
2851

    
2852
- note: the allowed size and number of tags per object were reduced
2853
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2854
- fixed twisted 8.x compatibility
2855
- fixed ``gnt-instance replace-disks`` with iallocator
2856
- add TCP keepalives on twisted connections to detect restarted nodes
2857
- disk increase support, see ``gnt-instance grow-disk``
2858
- implement bulk node/instance query for RAPI
2859
- add tags in node/instance listing (optional)
2860
- experimental migration (and live migration) support, read the man page
2861
  for ``gnt-instance migrate``
2862
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2863
  has some small improvements in handling its state file
2864

    
2865

    
2866
Version 1.2.4
2867
-------------
2868

    
2869
*(Released Fri, 13 Jun 2008)*
2870

    
2871
- Experimental readonly, REST-based remote API implementation;
2872
  automatically started on master node, TCP port 5080, if enabled by
2873
  ``--enable-rapi`` parameter to configure script.
2874
- Instance allocator support. Add and import instance accept a
2875
  ``--iallocator`` parameter, and call that instance allocator to decide
2876
  which node to use for the instance. The iallocator document describes
2877
  what's expected from an allocator script.
2878
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2879
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2880
  node is lost there is still enough memory to fail over the instances
2881
  that reside on it.
2882
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2883
  ``gnt-cluster verify``, to check for site-specific compliance. All the
2884
  hooks will run, and their output, if any, will be displayed. Any
2885
  failing hook will make the verification return an error value.
2886
- ``gnt-cluster verify`` now checks that its peers are reachable on the
2887
  primary and secondary interfaces
2888
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2889
  that is still declared as part of the cluster and has failed.
2890
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
2891
  specifying output fields, that just adds the chosen fields to the
2892
  default ones.
2893
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
2894
  export from the filesystem.
2895
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2896
  have been added. Using them you can enable/disable acpi and pae
2897
  support, and specify a path for a cd image to be exported to the
2898
  instance. These parameters as the name suggest only work on HVM
2899
  clusters.
2900
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2901
  PAE support will be set to the previously hardcoded values, but the
2902
  (previously hardcoded) path to the CDROM ISO image will be unset and
2903
  if required, needs to be set manually with ``gnt-instance modify``
2904
  after the upgrade.
2905
- The address to which an instance's VNC console is bound is now
2906
  selectable per-instance, rather than being cluster wide. Of course
2907
  this only applies to instances controlled via VNC, so currently just
2908
  applies to HVM clusters.
2909

    
2910

    
2911
Version 1.2.3
2912
-------------
2913

    
2914
*(Released Mon, 18 Feb 2008)*
2915

    
2916
- more tweaks to the disk activation code (especially helpful for DRBD)
2917
- change the default ``gnt-instance list`` output format, now there is
2918
  one combined status field (see the manpage for the exact values this
2919
  field will have)
2920
- some more fixes for the mac export to hooks change
2921
- make Ganeti not break with DRBD 8.2.x (which changed the version
2922
  format in ``/proc/drbd``) (issue 24)
2923
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2924
  template, allowing migration from DRBD0.7+MD to DRBD8
2925

    
2926

    
2927
Version 1.2.2
2928
-------------
2929

    
2930
*(Released Wed, 30 Jan 2008)*
2931

    
2932
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
2933
  support (issue 23)
2934
- add command aliases infrastructure and a few aliases
2935
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
2936
  man pages and the ``--help`` option of ``gnt-node
2937
  list``/``gnt-instance list``
2938
- fix ``gnt-backup list`` with down nodes (issue 21)
2939
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
2940
- fix the dist archive and add a check for including svn/git files in
2941
  the future
2942
- some developer-related changes: improve the burnin and the QA suite,
2943
  add an upload script for testing during development
2944

    
2945

    
2946
Version 1.2.1
2947
-------------
2948

    
2949
*(Released Wed, 16 Jan 2008)*
2950

    
2951
- experimental HVM support, read the install document, section
2952
  "Initializing the cluster"
2953
- allow for the PVM hypervisor per-instance kernel and initrd paths
2954
- add a new command ``gnt-cluster verify-disks`` which uses a new
2955
  algorithm to improve the reconnection of the DRBD pairs if the device
2956
  on the secondary node has gone away
2957
- make logical volume code auto-activate LVs at disk activation time
2958
- slightly improve the speed of activating disks
2959
- allow specification of the MAC address at instance creation time, and
2960
  changing it later via ``gnt-instance modify``
2961
- fix handling of external commands that generate lots of output on
2962
  stderr
2963
- update documentation with regard to minimum version of DRBD8 supported
2964

    
2965

    
2966
Version 1.2.0
2967
-------------
2968

    
2969
*(Released Tue, 4 Dec 2007)*
2970

    
2971
- Log the ``xm create`` output to the node daemon log on failure (to
2972
  help diagnosing the error)
2973
- In debug mode, log all external commands output if failed to the logs
2974
- Change parsing of lvm commands to ignore stderr
2975

    
2976

    
2977
Version 1.2 beta3
2978
-----------------
2979

    
2980
*(Released Wed, 28 Nov 2007)*
2981

    
2982
- Another round of updates to the DRBD 8 code to deal with more failures
2983
  in the replace secondary node operation
2984
- Some more logging of failures in disk operations (lvm, drbd)
2985
- A few documentation updates
2986
- QA updates
2987

    
2988

    
2989
Version 1.2 beta2
2990
-----------------
2991

    
2992
*(Released Tue, 13 Nov 2007)*
2993

    
2994
- Change configuration file format from Python's Pickle to JSON.
2995
  Upgrading is possible using the cfgupgrade utility.
2996
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
2997
  faster replace disks and is more stable (DRBD 8 has many improvements
2998
  compared to DRBD 0.7)
2999
- Added command line tags support (see man pages for ``gnt-instance``,
3000
  ``gnt-node``, ``gnt-cluster``)
3001
- Added instance rename support
3002
- Added multi-instance startup/shutdown
3003
- Added cluster rename support
3004
- Added ``gnt-node evacuate`` to simplify some node operations
3005
- Added instance reboot operation that can speedup reboot as compared to
3006
  stop and start
3007
- Soften the requirement that hostnames are in FQDN format
3008
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
3009
  reboots
3010
- Removed dependency on debian's patched fping that uses the
3011
  non-standard ``-S`` option
3012
- Now the OS definitions are searched for in multiple, configurable
3013
  paths (easier for distros to package)
3014
- Some changes to the hooks infrastructure (especially the new
3015
  post-configuration update hook)
3016
- Other small bugfixes
3017

    
3018
.. vim: set textwidth=72 syntax=rst :
3019
.. Local Variables:
3020
.. mode: rst
3021
.. fill-column: 72
3022
.. End: