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1
News
2
====
3

    
4

    
5
Version 2.5.1
6
-------------
7

    
8
*(Released Fri, 11 May 2012)*
9

    
10
A small bugfix release.
11

    
12
The main issues solved are on the topic of compatibility with newer LVM
13
releases:
14

    
15
- fixed parsing of ``lv_attr`` field
16
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
17
  the ``--force`` flag is needed
18

    
19
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
20
to accept kernel 3.x too (was hardcoded to 2.6.*).
21

    
22
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
23
of hook results and that also made display of other errors suboptimal
24
was fixed; the code behaves now like 2.4 and earlier.
25

    
26
Another change in 2.5, the cleanup of the OS scripts environment, is too
27
aggressive: it removed even the ``PATH`` variable, which requires the OS
28
scripts to *always* need to export it. Since this is a bit too strict,
29
we now export a minimal PATH, the same that we export for hooks.
30

    
31
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
32
integrated into this release.
33

    
34
Finally, a few other miscellaneous changes were done (no new features,
35
just small improvements):
36

    
37
- Fix ``gnt-group --help`` display
38
- Fix hardcoded Xen kernel path
39
- Fix grow-disk handling of invalid units
40
- Update synopsis for ``gnt-cluster repair-disk-sizes``
41
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
42

    
43

    
44
Version 2.5.0
45
-------------
46

    
47
*(Released Thu, 12 Apr 2012)*
48

    
49
Incompatible/important changes and bugfixes
50
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
51

    
52
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
53
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
54
  to match the underlying LUXI interface.
55
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
56
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
57
  not maintain backwards-compatibility as the underlying operation
58
  changed in an incompatible way. The RAPI client can talk to old
59
  servers, but it needs to be told so as the return value changed.
60
- When creating file-based instances via RAPI, the ``file_driver``
61
  parameter no longer defaults to ``loop`` and must be specified.
62
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
63
  ``link`` instead.
64
- Support for the undocumented and deprecated RAPI instance creation
65
  request format version 0 has been dropped. Use version 1, supported
66
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
67
- Pyparsing 1.4.6 or above is required, see :doc:`installation
68
  documentation <install>`.
69
- The "cluster-verify" hooks are now executed per group by the
70
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
71
  if you just run ``gnt-cluster verify``, which generates one opcode per
72
  group.
73
- The environment as passed to the OS scripts is cleared, and thus no
74
  environment variables defined in the node daemon's environment will be
75
  inherited by the scripts.
76
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
77
  deprecated.
78
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
79
  support operations involving multiple node groups.
80
- Offline nodes are ignored when failing over an instance.
81
- Support for KVM version 1.0, which changed the version reporting format
82
  from 3 to 2 digits.
83
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
84
  removal.
85
- ``Makefile`` is now compatible with Automake 1.11.2
86
- Includes all bugfixes made in the 2.4 series
87

    
88
New features
89
~~~~~~~~~~~~
90

    
91
- The ganeti-htools project has been merged into the ganeti-core source
92
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
93
- Implemented support for :doc:`shared storage <design-shared-storage>`.
94
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
95
  GPT-style partition tables (requires `parted
96
  <http://www.gnu.org/s/parted/>`_).
97
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
98
- Allowed adding tags on instance creation.
99
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
100
- Allow instances to be started in a paused state, enabling the user to
101
  see the complete console output on boot using the console.
102
- Added new hypervisor flag to control default reboot behaviour
103
  (``reboot_behavior``).
104
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
105
- Improved out-of-band management support:
106

    
107
  - Added ``gnt-node health`` command reporting the health status of
108
    nodes.
109
  - Added ``gnt-node power`` command to manage power status of nodes.
110
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
111

    
112
- Instance migration can fall back to failover if instance is not
113
  running.
114
- Filters can be used when listing nodes, instances, groups and locks;
115
  see *ganeti(7)* manpage.
116
- Added post-execution status as variables to :doc:`hooks <hooks>`
117
  environment.
118
- Instance tags are exported/imported together with the instance.
119
- When given an explicit job ID, ``gnt-job info`` will work for archived
120
  jobs.
121
- Jobs can define dependencies on other jobs (not yet supported via
122
  RAPI or command line, but used by internal commands and usable via
123
  LUXI).
124

    
125
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
126
    dependencies.
127

    
128
- Instance failover is now available as a RAPI resource
129
  (``/2/instances/[instance_name]/failover``).
130
- ``gnt-instance info`` defaults to static information if primary node
131
  is offline.
132
- Opcodes have a new ``comment`` attribute.
133
- Added basic SPICE support to KVM hypervisor.
134
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
135

    
136
Node group improvements
137
~~~~~~~~~~~~~~~~~~~~~~~
138

    
139
- ``gnt-cluster verify`` has been modified to check groups separately,
140
  thereby improving performance.
141
- Node group support has been added to ``gnt-cluster verify-disks``,
142
  which now operates per node group.
143
- Watcher has been changed to work better with node groups.
144

    
145
  - One process and state file per node group.
146
  - Slow watcher in one group doesn't block other group's watcher.
147

    
148
- Added new command, ``gnt-group evacuate``, to move all instances in a
149
  node group to other groups.
150
- Added ``gnt-instance change-group`` to move an instance to another
151
  node group.
152
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
153
  per-group operations.
154
- Node groups can be tagged.
155
- Some operations switch from an exclusive to a shared lock as soon as
156
  possible.
157
- Instance's primary and secondary nodes' groups are now available as
158
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
159
  and ``snodes.group.uuid``).
160

    
161
Misc
162
~~~~
163

    
164
- Numerous updates to documentation and manpages.
165

    
166
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
167
    descriptions.
168
  - Some opcode/job results are now also documented, see :doc:`RAPI
169
    <rapi>`.
170

    
171
- A lockset's internal lock is now also visible in lock monitor.
172
- Log messages from job queue workers now contain information about the
173
  opcode they're processing.
174
- ``gnt-instance console`` no longer requires the instance lock.
175
- A short delay when waiting for job changes reduces the number of LUXI
176
  requests significantly.
177
- DRBD metadata volumes are overwritten with zeros during disk creation.
178
- Out-of-band commands no longer acquire the cluster lock in exclusive
179
  mode.
180
- ``devel/upload`` now uses correct permissions for directories.
181

    
182

    
183
Version 2.5.0 rc6
184
-----------------
185

    
186
*(Released Fri, 23 Mar 2012)*
187

    
188
This was the sixth release candidate of the 2.5 series.
189

    
190

    
191
Version 2.5.0 rc5
192
-----------------
193

    
194
*(Released Mon, 9 Jan 2012)*
195

    
196
This was the fifth release candidate of the 2.5 series.
197

    
198

    
199
Version 2.5.0 rc4
200
-----------------
201

    
202
*(Released Thu, 27 Oct 2011)*
203

    
204
This was the fourth release candidate of the 2.5 series.
205

    
206

    
207
Version 2.5.0 rc3
208
-----------------
209

    
210
*(Released Wed, 26 Oct 2011)*
211

    
212
This was the third release candidate of the 2.5 series.
213

    
214

    
215
Version 2.5.0 rc2
216
-----------------
217

    
218
*(Released Tue, 18 Oct 2011)*
219

    
220
This was the second release candidate of the 2.5 series.
221

    
222

    
223
Version 2.5.0 rc1
224
-----------------
225

    
226
*(Released Tue, 4 Oct 2011)*
227

    
228
This was the first release candidate of the 2.5 series.
229

    
230

    
231
Version 2.5.0 beta3
232
-------------------
233

    
234
*(Released Wed, 31 Aug 2011)*
235

    
236
This was the third beta release of the 2.5 series.
237

    
238

    
239
Version 2.5.0 beta2
240
-------------------
241

    
242
*(Released Mon, 22 Aug 2011)*
243

    
244
This was the second beta release of the 2.5 series.
245

    
246

    
247
Version 2.5.0 beta1
248
-------------------
249

    
250
*(Released Fri, 12 Aug 2011)*
251

    
252
This was the first beta release of the 2.5 series.
253

    
254

    
255
Version 2.4.5
256
-------------
257

    
258
*(Released Thu, 27 Oct 2011)*
259

    
260
- Fixed bug when parsing command line parameter values ending in
261
  backslash
262
- Fixed assertion error after unclean master shutdown
263
- Disable HTTP client pool for RPC, significantly reducing memory usage
264
  of master daemon
265
- Fixed queue archive creation with wrong permissions
266

    
267

    
268
Version 2.4.4
269
-------------
270

    
271
*(Released Tue, 23 Aug 2011)*
272

    
273
Small bug-fixes:
274

    
275
- Fixed documentation for importing with ``--src-dir`` option
276
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
277
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
278

    
279

    
280
Version 2.4.3
281
-------------
282

    
283
*(Released Fri, 5 Aug 2011)*
284

    
285
Many bug-fixes and a few small features:
286

    
287
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
288
  issues when you tried to add an instance with two MAC addresses in one
289
  request
290
- KVM: fixed per-instance stored UID value
291
- KVM: configure bridged NICs at migration start
292
- KVM: Fix a bug where instance will not start with never KVM versions
293
  (>= 0.14)
294
- Added OS search path to ``gnt-cluster info``
295
- Fixed an issue with ``file_storage_dir`` where you were forced to
296
  provide an absolute path, but the documentation states it is a
297
  relative path, the documentation was right
298
- Added a new parameter to instance stop/start called ``--no-remember``
299
  that will make the state change to not be remembered
300
- Implemented ``no_remember`` at RAPI level
301
- Improved the documentation
302
- Node evacuation: don't call IAllocator if node is already empty
303
- Fixed bug in DRBD8 replace disks on current nodes
304
- Fixed bug in recreate-disks for DRBD instances
305
- Moved assertion checking locks in ``gnt-instance replace-disks``
306
  causing it to abort with not owning the right locks for some situation
307
- Job queue: Fixed potential race condition when cancelling queued jobs
308
- Fixed off-by-one bug in job serial generation
309
- ``gnt-node volumes``: Fix instance names
310
- Fixed aliases in bash completion
311
- Fixed a bug in reopening log files after being sent a SIGHUP
312
- Added a flag to burnin to allow specifying VCPU count
313
- Bugfixes to non-root Ganeti configuration
314

    
315

    
316
Version 2.4.2
317
-------------
318

    
319
*(Released Thu, 12 May 2011)*
320

    
321
Many bug-fixes and a few new small features:
322

    
323
- Fixed a bug related to log opening failures
324
- Fixed a bug in instance listing with orphan instances
325
- Fixed a bug which prevented resetting the cluster-level node parameter
326
  ``oob_program`` to the default
327
- Many fixes related to the ``cluster-merge`` tool
328
- Fixed a race condition in the lock monitor, which caused failures
329
  during (at least) creation of many instances in parallel
330
- Improved output for gnt-job info
331
- Removed the quiet flag on some ssh calls which prevented debugging
332
  failures
333
- Improved the N+1 failure messages in cluster verify by actually
334
  showing the memory values (needed and available)
335
- Increased lock attempt timeouts so that when executing long operations
336
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
337
  too early and thus prevent the use of the 'fair' mechanism
338
- Changed instance query data (``gnt-instance info``) to not acquire
339
  locks unless needed, thus allowing its use on locked instance if only
340
  static information is asked for
341
- Improved behaviour with filesystems that do not support rename on an
342
  opened file
343
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
344
  kept locks on all nodes during the wipe, which is unneeded
345
- Fixed ``gnt-watcher`` handling of errors during hooks execution
346
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
347
  10GiB) which caused the wipe to fail right at the end in some cases
348
- Fixed master IP activation when doing master failover with no-voting
349
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
350
  the master node itself
351
- Fixed potential data-loss in under disk full conditions, where Ganeti
352
  wouldn't check correctly the return code and would consider
353
  partially-written files 'correct'
354
- Fixed bug related to multiple VGs and DRBD disk replacing
355
- Added new disk parameter ``metavg`` that allows placement of the meta
356
  device for DRBD in a different volume group
357
- Fixed error handling in the node daemon when the system libc doesn't
358
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
359
- Fixed lock release during replace-disks, which kept cluster-wide locks
360
  when doing disk replaces with an iallocator script
361
- Added check for missing bridges in cluster verify
362
- Handle EPIPE errors while writing to the terminal better, so that
363
  piping the output to e.g. ``less`` doesn't cause a backtrace
364
- Fixed rare case where a ^C during Luxi calls could have been
365
  interpreted as server errors, instead of simply terminating
366
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
367
  assign-nodes``)
368
- Added a few more parameters to the KVM hypervisor, allowing a second
369
  CDROM, custom disk type for CDROMs and a floppy image
370
- Removed redundant message in instance rename when the name is given
371
  already as a FQDN
372
- Added option to ``gnt-instance recreate-disks`` to allow creating the
373
  disks on new nodes, allowing recreation when the original instance
374
  nodes are completely gone
375
- Added option when converting disk templates to DRBD to skip waiting
376
  for the resync, in order to make the instance available sooner
377
- Added two new variables to the OS scripts environment (containing the
378
  instance's nodes)
379
- Made the root_path and optional parameter for the xen-pvm hypervisor,
380
  to allow use of ``pvgrub`` as bootloader
381
- Changed the instance memory modifications to only check out-of-memory
382
  conditions on memory increases, and turned the secondary node warnings
383
  into errors (they can still be overridden via ``--force``)
384
- Fixed the handling of a corner case when the Python installation gets
385
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
386
  to execute a command that doesn't exist
387
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
388
  node of the instance returned failures during instance shutdown; this
389
  adds the option ``--ignore-consistency`` to gnt-instance move
390

    
391
And as usual, various improvements to the error messages, documentation
392
and man pages.
393

    
394
Version 2.4.1
395
-------------
396

    
397
*(Released Wed, 09 Mar 2011)*
398

    
399
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
400
the RAPI users file if run twice (even with ``--dry-run``).
401

    
402
The release fixes that bug (nothing else changed).
403

    
404

    
405
Version 2.4.0
406
-------------
407

    
408
*(Released Mon, 07 Mar 2011)*
409

    
410
Final 2.4.0 release. Just a few small fixes:
411

    
412
- Fixed RAPI node evacuate
413
- Fixed the kvm-ifup script
414
- Fixed internal error handling for special job cases
415
- Updated man page to specify the escaping feature for options
416

    
417

    
418
Version 2.4.0 rc3
419
-----------------
420

    
421
*(Released Mon, 28 Feb 2011)*
422

    
423
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
424
that this feature wiped the disks of the wrong instance, leading to loss
425
of data.
426

    
427
Other changes:
428

    
429
- Fixed title of query field containing instance name
430
- Expanded the glossary in the documentation
431
- Fixed one unittest (internal issue)
432

    
433

    
434
Version 2.4.0 rc2
435
-----------------
436

    
437
*(Released Mon, 21 Feb 2011)*
438

    
439
A number of bug fixes plus just a couple functionality changes.
440

    
441
On the user-visible side, the ``gnt-* list`` command output has changed
442
with respect to "special" field states. The current rc1 style of display
443
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
444
the default output mode special fields states are displayed as follows:
445

    
446
- Offline resource: ``*``
447
- Unavailable/not applicable: ``-``
448
- Data missing (RPC failure): ``?``
449
- Unknown field: ``??``
450

    
451
Another user-visible change is the addition of ``--force-join`` to
452
``gnt-node add``.
453

    
454
As for bug fixes:
455

    
456
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
457
- Fixed regression in RAPI/instance reinstall where all parameters were
458
  required (instead of optional)
459
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
460
- Fixed iallocator usage (offline nodes were not considered offline)
461
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
462
- Fixed hypervisor and OS parameter validation with respect to
463
  non-vm_capable nodes
464
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
465
  cosmetic)
466
- Fixed ``tools/listrunner`` with respect to agent-based usage
467

    
468

    
469
Version 2.4.0 rc1
470
-----------------
471

    
472
*(Released Fri,  4 Feb 2011)*
473

    
474
Many changes and fixes since the beta1 release. While there were some
475
internal changes, the code has been mostly stabilised for the RC
476
release.
477

    
478
Note: the dumb allocator was removed in this release, as it was not kept
479
up-to-date with the IAllocator protocol changes. It is recommended to
480
use the ``hail`` command from the ganeti-htools package.
481

    
482
Note: the 2.4 and up versions of Ganeti are not compatible with the
483
0.2.x branch of ganeti-htools. You need to upgrade to
484
ganeti-htools-0.3.0 (or later).
485

    
486
Regressions fixed from 2.3
487
~~~~~~~~~~~~~~~~~~~~~~~~~~
488

    
489
- Fixed the ``gnt-cluster verify-disks`` command
490
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
491
  serially on nodes)
492
- Fixed disk adoption breakage
493
- Fixed wrong headers in instance listing for field aliases
494

    
495
Other bugs fixed
496
~~~~~~~~~~~~~~~~
497

    
498
- Fixed corner case in KVM handling of NICs
499
- Fixed many cases of wrong handling of non-vm_capable nodes
500
- Fixed a bug where a missing instance symlink was not possible to
501
  recreate with any ``gnt-*`` command (now ``gnt-instance
502
  activate-disks`` does it)
503
- Fixed the volume group name as reported by ``gnt-cluster
504
  verify-disks``
505
- Increased timeouts for the import-export code, hopefully leading to
506
  fewer aborts due network or instance timeouts
507
- Fixed bug in ``gnt-node list-storage``
508
- Fixed bug where not all daemons were started on cluster
509
  initialisation, but only at the first watcher run
510
- Fixed many bugs in the OOB implementation
511
- Fixed watcher behaviour in presence of instances with offline
512
  secondaries
513
- Fixed instance list output for instances running on the wrong node
514
- a few fixes to the cluster-merge tool, but it still cannot merge
515
  multi-node groups (currently it is not recommended to use this tool)
516

    
517

    
518
Improvements
519
~~~~~~~~~~~~
520

    
521
- Improved network configuration for the KVM hypervisor
522
- Added e1000 as a supported NIC for Xen-HVM
523
- Improved the lvmstrap tool to also be able to use partitions, as
524
  opposed to full disks
525
- Improved speed of disk wiping (the cluster parameter
526
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
527
  of instance creations
528
- Added documentation for the OS parameters
529
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
530
  hypervisor is not responding
531
- Added display of blacklisted and hidden OS information in
532
  ``gnt-cluster info``
533
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
534
  NIC and node parameters, which might create problems with currently
535
  invalid (but undetected) configuration files, but prevents validation
536
  failures when unrelated parameters are modified
537
- Changed cluster initialisation to wait for the master daemon to become
538
  available
539
- Expanded the RAPI interface:
540

    
541
  - Added config redistribution resource
542
  - Added activation/deactivation of instance disks
543
  - Added export of console information
544

    
545
- Implemented log file reopening on SIGHUP, which allows using
546
  logrotate(8) for the Ganeti log files
547
- Added a basic OOB helper script as an example
548

    
549

    
550
Version 2.4.0 beta1
551
-------------------
552

    
553
*(Released Fri, 14 Jan 2011)*
554

    
555
User-visible
556
~~~~~~~~~~~~
557

    
558
- Fixed timezone issues when formatting timestamps
559
- Added support for node groups, available via ``gnt-group`` and other
560
  commands
561
- Added out-of-band framework and management, see :doc:`design
562
  document <design-oob>`
563
- Removed support for roman numbers from ``gnt-node list`` and
564
  ``gnt-instance list``.
565
- Allowed modification of master network interface via ``gnt-cluster
566
  modify --master-netdev``
567
- Accept offline secondaries while shutting down instance disks
568
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
569
- Added support for multiple LVM volume groups
570
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
571
  requested
572
- Added commands to list available fields:
573

    
574
  - ``gnt-node list-fields``
575
  - ``gnt-group list-fields``
576
  - ``gnt-instance list-fields``
577

    
578
- Updated documentation and man pages
579

    
580
Integration
581
~~~~~~~~~~~
582

    
583
- Moved ``rapi_users`` file into separate directory, now named
584
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
585
  symlink
586
- Added new tool for running commands on many machines,
587
  ``tools/ganeti-listrunner``
588
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
589
  improving the ``gnt-instance console`` output
590
- Allowed customisation of disk index separator at ``configure`` time
591
- Export node group allocation policy to :doc:`iallocator <iallocator>`
592
- Added support for non-partitioned md disks in ``lvmstrap``
593
- Added script to gracefully power off KVM instances
594
- Split ``utils`` module into smaller parts
595
- Changed query operations to return more detailed information, e.g.
596
  whether an information is unavailable due to an offline node. To use
597
  this new functionality, the LUXI call ``Query`` must be used. Field
598
  information is now stored by the master daemon and can be retrieved
599
  using ``QueryFields``. Instances, nodes and groups can also be queried
600
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
601
  exposed via RAPI). The following commands make use of this
602
  infrastructure change:
603

    
604
  - ``gnt-group list``
605
  - ``gnt-group list-fields``
606
  - ``gnt-node list``
607
  - ``gnt-node list-fields``
608
  - ``gnt-instance list``
609
  - ``gnt-instance list-fields``
610
  - ``gnt-debug locks``
611

    
612
Remote API
613
~~~~~~~~~~
614

    
615
- New RAPI resources (see :doc:`rapi`):
616

    
617
  - ``/2/modify``
618
  - ``/2/groups``
619
  - ``/2/groups/[group_name]``
620
  - ``/2/groups/[group_name]/assign-nodes``
621
  - ``/2/groups/[group_name]/modify``
622
  - ``/2/groups/[group_name]/rename``
623
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
624

    
625
- RAPI changes:
626

    
627
  - Implemented ``no_install`` for instance creation
628
  - Implemented OS parameters for instance reinstallation, allowing
629
    use of special settings on reinstallation (e.g. for preserving data)
630

    
631
Misc
632
~~~~
633

    
634
- Added IPv6 support in import/export
635
- Pause DRBD synchronization while wiping disks on instance creation
636
- Updated unittests and QA scripts
637
- Improved network parameters passed to KVM
638
- Converted man pages from docbook to reStructuredText
639

    
640

    
641
Version 2.3.1
642
-------------
643

    
644
*(Released Mon, 20 Dec 2010)*
645

    
646
Released version 2.3.1~rc1 without any changes.
647

    
648

    
649
Version 2.3.1 rc1
650
-----------------
651

    
652
*(Released Wed, 1 Dec 2010)*
653

    
654
- impexpd: Disable OpenSSL compression in socat if possible (backport
655
  from master, commit e90739d625b, see :doc:`installation guide
656
  <install-quick>` for details)
657
- Changed unittest coverage report to exclude test scripts
658
- Added script to check version format
659

    
660

    
661
Version 2.3.0
662
-------------
663

    
664
*(Released Wed, 1 Dec 2010)*
665

    
666
Released version 2.3.0~rc1 without any changes.
667

    
668

    
669
Version 2.3.0 rc1
670
-----------------
671

    
672
*(Released Fri, 19 Nov 2010)*
673

    
674
A number of bugfixes and documentation updates:
675

    
676
- Update ganeti-os-interface documentation
677
- Fixed a bug related to duplicate MACs or similar items which should be
678
  unique
679
- Fix breakage in OS state modify
680
- Reinstall instance: disallow offline secondaries (fixes bug related to
681
  OS changing but reinstall failing)
682
- plus all the other fixes between 2.2.1 and 2.2.2
683

    
684

    
685
Version 2.3.0 rc0
686
-----------------
687

    
688
*(Released Tue, 2 Nov 2010)*
689

    
690
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
691
- Fixed master failover race with watcher
692
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
693
  configuration
694
- Accept previously stopped instance for export with instance removal
695
- Simplify and extend the environment variables for instance OS scripts
696
- Added new node flags, ``master_capable`` and ``vm_capable``
697
- Added optional instance disk wiping prior during allocation. This is a
698
  cluster-wide option and can be set/modified using
699
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
700
- Added IPv6 support, see :doc:`design document <design-2.3>` and
701
  :doc:`install-quick`
702
- Added a new watcher option (``--ignore-pause``)
703
- Added option to ignore offline node on instance start/stop
704
  (``--ignore-offline``)
705
- Allow overriding OS parameters with ``gnt-instance reinstall``
706
- Added ability to change node's secondary IP address using ``gnt-node
707
  modify``
708
- Implemented privilege separation for all daemons except
709
  ``ganeti-noded``, see ``configure`` options
710
- Complain if an instance's disk is marked faulty in ``gnt-cluster
711
  verify``
712
- Implemented job priorities (see ``ganeti(7)`` manpage)
713
- Ignore failures while shutting down instances during failover from
714
  offline node
715
- Exit daemon's bootstrap process only once daemon is ready
716
- Export more information via ``LUInstanceQuery``/remote API
717
- Improved documentation, QA and unittests
718
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
719
  restart if the file was created or changed
720
- Added LUXI protocol version sent with each request and response,
721
  allowing detection of server/client mismatches
722
- Moved the Python scripts among gnt-* and ganeti-* into modules
723
- Moved all code related to setting up SSH to an external script,
724
  ``setup-ssh``
725
- Infrastructure changes for node group support in future versions
726

    
727

    
728
Version 2.2.2
729
-------------
730

    
731
*(Released Fri, 19 Nov 2010)*
732

    
733
A few small bugs fixed, and some improvements to the build system:
734

    
735
- Fix documentation regarding conversion to drbd
736
- Fix validation of parameters in cluster modify (``gnt-cluster modify
737
  -B``)
738
- Fix error handling in node modify with multiple changes
739
- Allow remote imports without checked names
740

    
741

    
742
Version 2.2.1
743
-------------
744

    
745
*(Released Tue, 19 Oct 2010)*
746

    
747
- Disable SSL session ID cache in RPC client
748

    
749

    
750
Version 2.2.1 rc1
751
-----------------
752

    
753
*(Released Thu, 14 Oct 2010)*
754

    
755
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
756
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
757
  with GnuTLS
758
- Fix problems with interaction between Curl and Python's HTTP server,
759
  resulting in increased speed in many RPC calls
760
- Improve our release script to prevent breakage with older aclocal and
761
  Python 2.6
762

    
763

    
764
Version 2.2.1 rc0
765
-----------------
766

    
767
*(Released Thu, 7 Oct 2010)*
768

    
769
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
770
  value retrieved from master
771
- Added support for blacklisted or hidden OS definitions
772
- Added simple lock monitor (accessible via (``gnt-debug locks``)
773
- Added support for -mem-path in KVM hypervisor abstraction layer
774
- Allow overriding instance parameters in tool for inter-cluster
775
  instance moves (``tools/move-instance``)
776
- Improved opcode summaries (e.g. in ``gnt-job list``)
777
- Improve consistency of OS listing by sorting it
778
- Documentation updates
779

    
780

    
781
Version 2.2.0.1
782
---------------
783

    
784
*(Released Fri, 8 Oct 2010)*
785

    
786
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
787

    
788

    
789
Version 2.2.0
790
-------------
791

    
792
*(Released Mon, 4 Oct 2010)*
793

    
794
- Fixed regression in ``gnt-instance rename``
795

    
796

    
797
Version 2.2.0 rc2
798
-----------------
799

    
800
*(Released Wed, 22 Sep 2010)*
801

    
802
- Fixed OS_VARIANT variable for OS scripts
803
- Fixed cluster tag operations via RAPI
804
- Made ``setup-ssh`` exit with non-zero code if an error occurred
805
- Disabled RAPI CA checks in watcher
806

    
807

    
808
Version 2.2.0 rc1
809
-----------------
810

    
811
*(Released Mon, 23 Aug 2010)*
812

    
813
- Support DRBD versions of the format "a.b.c.d"
814
- Updated manpages
815
- Re-introduce support for usage from multiple threads in RAPI client
816
- Instance renames and modify via RAPI
817
- Work around race condition between processing and archival in job
818
  queue
819
- Mark opcodes following failed one as failed, too
820
- Job field ``lock_status`` was removed due to difficulties making it
821
  work with the changed job queue in Ganeti 2.2; a better way to monitor
822
  locks is expected for a later 2.2.x release
823
- Fixed dry-run behaviour with many commands
824
- Support ``ssh-agent`` again when adding nodes
825
- Many additional bugfixes
826

    
827

    
828
Version 2.2.0 rc0
829
-----------------
830

    
831
*(Released Fri, 30 Jul 2010)*
832

    
833
Important change: the internal RPC mechanism between Ganeti nodes has
834
changed from using a home-grown http library (based on the Python base
835
libraries) to use the PycURL library. This requires that PycURL is
836
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
837
against GnuTLS by default. cURL's support for GnuTLS had known issues
838
before cURL 7.21.0 and we recommend using the latest cURL release or
839
linking against OpenSSL. Most other distributions already link PycURL
840
and cURL against OpenSSL. The command::
841

    
842
  python -c 'import pycurl; print pycurl.version'
843

    
844
can be used to determine the libraries PycURL and cURL are linked
845
against.
846

    
847
Other significant changes:
848

    
849
- Rewrote much of the internals of the job queue, in order to achieve
850
  better parallelism; this decouples job query operations from the job
851
  processing, and it should allow much nicer behaviour of the master
852
  daemon under load, and it also has uncovered some long-standing bugs
853
  related to the job serialisation (now fixed)
854
- Added a default iallocator setting to the cluster parameters,
855
  eliminating the need to always pass nodes or an iallocator for
856
  operations that require selection of new node(s)
857
- Added experimental support for the LXC virtualization method
858
- Added support for OS parameters, which allows the installation of
859
  instances to pass parameter to OS scripts in order to customise the
860
  instance
861
- Added a hypervisor parameter controlling the migration type (live or
862
  non-live), since hypervisors have various levels of reliability; this
863
  has renamed the 'live' parameter to 'mode'
864
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
865
  logical volumes, meaning that cluster verify will ignore them and not
866
  flag their presence as errors
867
- The watcher will now reset the error count for failed instances after
868
  8 hours, thus allowing self-healing if the problem that caused the
869
  instances to be down/fail to start has cleared in the meantime
870
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
871
  check for, and warn, if the drbd module parameter ``usermode_helper``
872
  is not consistent with the cluster-wide setting; this is needed to
873
  make diagnose easier of failed drbd creations
874
- Started adding base IPv6 support, but this is not yet
875
  enabled/available for use
876
- Rename operations (cluster, instance) will now return the new name,
877
  which is especially useful if a short name was passed in
878
- Added support for instance migration in RAPI
879
- Added a tool to pre-configure nodes for the SSH setup, before joining
880
  them to the cluster; this will allow in the future a simplified model
881
  for node joining (but not yet fully enabled in 2.2); this needs the
882
  paramiko python library
883
- Fixed handling of name-resolving errors
884
- Fixed consistency of job results on the error path
885
- Fixed master-failover race condition when executed multiple times in
886
  sequence
887
- Fixed many bugs related to the job queue (mostly introduced during the
888
  2.2 development cycle, so not all are impacting 2.1)
889
- Fixed instance migration with missing disk symlinks
890
- Fixed handling of unknown jobs in ``gnt-job archive``
891
- And many other small fixes/improvements
892

    
893
Internal changes:
894

    
895
- Enhanced both the unittest and the QA coverage
896
- Switched the opcode validation to a generic model, and extended the
897
  validation to all opcode parameters
898
- Changed more parts of the code that write shell scripts to use the
899
  same class for this
900
- Switched the master daemon to use the asyncore library for the Luxi
901
  server endpoint
902

    
903

    
904
Version 2.2.0 beta 0
905
--------------------
906

    
907
*(Released Thu, 17 Jun 2010)*
908

    
909
- Added tool (``move-instance``) and infrastructure to move instances
910
  between separate clusters (see :doc:`separate documentation
911
  <move-instance>` and :doc:`design document <design-2.2>`)
912
- Added per-request RPC timeout
913
- RAPI now requires a Content-Type header for requests with a body (e.g.
914
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
915
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
916
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
917
  reachable
918
- Implemented initial support for running Ganeti daemons as separate
919
  users, see configure-time flags ``--with-user-prefix`` and
920
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
921
  time)
922
- Instances can be removed after export (``gnt-backup export
923
  --remove-instance``)
924
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
925
  key (instead of 1024 bit)
926
- Added new cluster configuration file for cluster domain secret
927
- Import/export now use SSL instead of SSH
928
- Added support for showing estimated time when exporting an instance,
929
  see the ``ganeti-os-interface(7)`` manpage and look for
930
  ``EXP_SIZE_FD``
931

    
932

    
933
Version 2.1.8
934
-------------
935

    
936
*(Released Tue, 16 Nov 2010)*
937

    
938
Some more bugfixes. Unless critical bugs occur, this will be the last
939
2.1 release:
940

    
941
- Fix case of MAC special-values
942
- Fix mac checker regex
943
- backend: Fix typo causing "out of range" error
944
- Add missing --units in gnt-instance list man page
945

    
946

    
947
Version 2.1.7
948
-------------
949

    
950
*(Released Tue, 24 Aug 2010)*
951

    
952
Bugfixes only:
953
  - Don't ignore secondary node silently on non-mirrored disk templates
954
    (issue 113)
955
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
956
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
957
  - Properly document the usb_mouse parameter
958
  - Fix path in ganeti-rapi(8) (issue 116)
959
  - Adjust error message when the ganeti user's .ssh directory is
960
    missing
961
  - Add same-node-check when changing the disk template to drbd
962

    
963

    
964
Version 2.1.6
965
-------------
966

    
967
*(Released Fri, 16 Jul 2010)*
968

    
969
Bugfixes only:
970
  - Add an option to only select some reboot types during qa/burnin.
971
    (on some hypervisors consequent reboots are not supported)
972
  - Fix infrequent race condition in master failover. Sometimes the old
973
    master ip address would be still detected as up for a short time
974
    after it was removed, causing failover to fail.
975
  - Decrease mlockall warnings when the ctypes module is missing. On
976
    Python 2.4 we support running even if no ctypes module is installed,
977
    but we were too verbose about this issue.
978
  - Fix building on old distributions, on which man doesn't have a
979
    --warnings option.
980
  - Fix RAPI not to ignore the MAC address on instance creation
981
  - Implement the old instance creation format in the RAPI client.
982

    
983

    
984
Version 2.1.5
985
-------------
986

    
987
*(Released Thu, 01 Jul 2010)*
988

    
989
A small bugfix release:
990
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
991
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
992
    a non-existing option
993
  - Fix instance create: the --force-variant option was ignored
994
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
995
  - Fix modify node storage with non-FQDN arguments
996
  - Fix RAPI client to authenticate under Python 2.6 when used
997
    for more than 5 requests needing authentication
998
  - Fix gnt-instance modify -t (storage) giving a wrong error message
999
    when converting a non-shutdown drbd instance to plain
1000

    
1001

    
1002
Version 2.1.4
1003
-------------
1004

    
1005
*(Released Fri, 18 Jun 2010)*
1006

    
1007
A small bugfix release:
1008

    
1009
  - Fix live migration of KVM instances started with older Ganeti
1010
    versions which had fewer hypervisor parameters
1011
  - Fix gnt-instance grow-disk on down instances
1012
  - Fix an error-reporting bug during instance migration
1013
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
1014
    silently ignoring broken ones
1015
  - Fix an RPC error reporting bug affecting, for example, RAPI client
1016
    users
1017
  - Fix bug triggered by different API version os-es on different nodes
1018
  - Fix a bug in instance startup with custom hvparams: OS level
1019
    parameters would fail to be applied.
1020
  - Fix the RAPI client under Python 2.6 (but more work is needed to
1021
    make it work completely well with OpenSSL)
1022
  - Fix handling of errors when resolving names from DNS
1023

    
1024

    
1025
Version 2.1.3
1026
-------------
1027

    
1028
*(Released Thu, 3 Jun 2010)*
1029

    
1030
A medium sized development cycle. Some new features, and some
1031
fixes/small improvements/cleanups.
1032

    
1033
Significant features
1034
~~~~~~~~~~~~~~~~~~~~
1035

    
1036
The node deamon now tries to mlock itself into memory, unless the
1037
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1038
its logs, and falls back to console logging. This allows emergency
1039
features such as ``gnt-node powercycle`` to work even in the event of a
1040
broken node disk (tested offlining the disk hosting the node's
1041
filesystem and dropping its memory caches; don't try this at home)
1042

    
1043
KVM: add vhost-net acceleration support. It can be tested with a new
1044
enough version of the kernel and of qemu-kvm.
1045

    
1046
KVM: Add instance chrooting feature. If you use privilege dropping for
1047
your VMs you can also now force them to chroot to an empty directory,
1048
before starting the emulated guest.
1049

    
1050
KVM: Add maximum migration bandwith and maximum downtime tweaking
1051
support (requires a new-enough version of qemu-kvm).
1052

    
1053
Cluster verify will now warn if the master node doesn't have the master
1054
ip configured on it.
1055

    
1056
Add a new (incompatible) instance creation request format to RAPI which
1057
supports all parameters (previously only a subset was supported, and it
1058
wasn't possible to extend the old format to accomodate all the new
1059
features. The old format is still supported, and a client can check for
1060
this feature, before using it, by checking for its presence in the
1061
``features`` RAPI resource.
1062

    
1063
Now with ancient latin support. Try it passing the ``--roman`` option to
1064
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1065
(requires the python-roman module to be installed, in order to work).
1066

    
1067
Other changes
1068
~~~~~~~~~~~~~
1069

    
1070
As usual many internal code refactorings, documentation updates, and
1071
such. Among others:
1072

    
1073
  - Lots of improvements and cleanups to the experimental Remote API
1074
    (RAPI) client library.
1075
  - A new unit test suite for the core daemon libraries.
1076
  - A fix to creating missing directories makes sure the umask is not
1077
    applied anymore. This enforces the same directory permissions
1078
    everywhere.
1079
  - Better handling terminating daemons with ctrl+c (used when running
1080
    them in debugging mode).
1081
  - Fix a race condition in live migrating a KVM instance, when stat()
1082
    on the old proc status file returned EINVAL, which is an unexpected
1083
    value.
1084
  - Fixed manpage checking with newer man and utf-8 charachters. But now
1085
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1086

    
1087

    
1088
Version 2.1.2.1
1089
---------------
1090

    
1091
*(Released Fri, 7 May 2010)*
1092

    
1093
Fix a bug which prevented untagged KVM instances from starting.
1094

    
1095

    
1096
Version 2.1.2
1097
-------------
1098

    
1099
*(Released Fri, 7 May 2010)*
1100

    
1101
Another release with a long development cycle, during which many
1102
different features were added.
1103

    
1104
Significant features
1105
~~~~~~~~~~~~~~~~~~~~
1106

    
1107
The KVM hypervisor now can run the individual instances as non-root, to
1108
reduce the impact of a VM being hijacked due to bugs in the
1109
hypervisor. It is possible to run all instances as a single (non-root)
1110
user, to manually specify a user for each instance, or to dynamically
1111
allocate a user out of a cluster-wide pool to each instance, with the
1112
guarantee that no two instances will run under the same user ID on any
1113
given node.
1114

    
1115
An experimental RAPI client library, that can be used standalone
1116
(without the other Ganeti libraries), is provided in the source tree as
1117
``lib/rapi/client.py``. Note this client might change its interface in
1118
the future, as we iterate on its capabilities.
1119

    
1120
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1121
replace the cluster's certificates and crypto keys. This might help in
1122
case they have been compromised, or have simply expired.
1123

    
1124
A new disk option for instance creation has been added that allows one
1125
to "adopt" currently existing logical volumes, with data
1126
preservation. This should allow easier migration to Ganeti from
1127
unmanaged (or managed via other software) instances.
1128

    
1129
Another disk improvement is the possibility to convert between redundant
1130
(DRBD) and plain (LVM) disk configuration for an instance. This should
1131
allow better scalability (starting with one node and growing the
1132
cluster, or shrinking a two-node cluster to one node).
1133

    
1134
A new feature that could help with automated node failovers has been
1135
implemented: if a node sees itself as offline (by querying the master
1136
candidates), it will try to shutdown (hard) all instances and any active
1137
DRBD devices. This reduces the risk of duplicate instances if an
1138
external script automatically failovers the instances on such nodes. To
1139
enable this, the cluster parameter ``maintain_node_health`` should be
1140
enabled; in the future this option (per the name) will enable other
1141
automatic maintenance features.
1142

    
1143
Instance export/import now will reuse the original instance
1144
specifications for all parameters; that means exporting an instance,
1145
deleting it and the importing it back should give an almost identical
1146
instance. Note that the default import behaviour has changed from
1147
before, where it created only one NIC; now it recreates the original
1148
number of NICs.
1149

    
1150
Cluster verify has added a few new checks: SSL certificates validity,
1151
/etc/hosts consistency across the cluster, etc.
1152

    
1153
Other changes
1154
~~~~~~~~~~~~~
1155

    
1156
As usual, many internal changes were done, documentation fixes,
1157
etc. Among others:
1158

    
1159
- Fixed cluster initialization with disabled cluster storage (regression
1160
  introduced in 2.1.1)
1161
- File-based storage supports growing the disks
1162
- Fixed behaviour of node role changes
1163
- Fixed cluster verify for some corner cases, plus a general rewrite of
1164
  cluster verify to allow future extension with more checks
1165
- Fixed log spamming by watcher and node daemon (regression introduced
1166
  in 2.1.1)
1167
- Fixed possible validation issues when changing the list of enabled
1168
  hypervisors
1169
- Fixed cleanup of /etc/hosts during node removal
1170
- Fixed RAPI response for invalid methods
1171
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1172
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1173
  from ide disks, etc.)
1174
- Allow OS changes without re-installation (to record a changed OS
1175
  outside of Ganeti, or to allow OS renames)
1176
- Allow instance creation without OS installation (useful for example if
1177
  the OS will be installed manually, or restored from a backup not in
1178
  Ganeti format)
1179
- Implemented option to make cluster ``copyfile`` use the replication
1180
  network
1181
- Added list of enabled hypervisors to ssconf (possibly useful for
1182
  external scripts)
1183
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1184
  1.2 clusters
1185
- A partial form of node re-IP is possible via node readd, which now
1186
  allows changed node primary IP
1187
- Command line utilities now show an informational message if the job is
1188
  waiting for a lock
1189
- The logs of the master daemon now show the PID/UID/GID of the
1190
  connected client
1191

    
1192

    
1193
Version 2.1.1
1194
-------------
1195

    
1196
*(Released Fri, 12 Mar 2010)*
1197

    
1198
During the 2.1.0 long release candidate cycle, a lot of improvements and
1199
changes have accumulated with were released later as 2.1.1.
1200

    
1201
Major changes
1202
~~~~~~~~~~~~~
1203

    
1204
The node evacuate command (``gnt-node evacuate``) was significantly
1205
rewritten, and as such the IAllocator protocol was changed - a new
1206
request type has been added. This unfortunate change during a stable
1207
series is designed to improve performance of node evacuations; on
1208
clusters with more than about five nodes and which are well-balanced,
1209
evacuation should proceed in parallel for all instances of the node
1210
being evacuated. As such, any existing IAllocator scripts need to be
1211
updated, otherwise the above command will fail due to the unknown
1212
request. The provided "dumb" allocator has not been updated; but the
1213
ganeti-htools package supports the new protocol since version 0.2.4.
1214

    
1215
Another important change is increased validation of node and instance
1216
names. This might create problems in special cases, if invalid host
1217
names are being used.
1218

    
1219
Also, a new layer of hypervisor parameters has been added, that sits at
1220
OS level between the cluster defaults and the instance ones. This allows
1221
customisation of virtualization parameters depending on the installed
1222
OS. For example instances with OS 'X' may have a different KVM kernel
1223
(or any other parameter) than the cluster defaults. This is intended to
1224
help managing a multiple OSes on the same cluster, without manual
1225
modification of each instance's parameters.
1226

    
1227
A tool for merging clusters, ``cluster-merge``, has been added in the
1228
tools sub-directory.
1229

    
1230
Bug fixes
1231
~~~~~~~~~
1232

    
1233
- Improved the int/float conversions that should make the code more
1234
  robust in face of errors from the node daemons
1235
- Fixed the remove node code in case of internal configuration errors
1236
- Fixed the node daemon behaviour in face of inconsistent queue
1237
  directory (e.g. read-only file-system where we can't open the files
1238
  read-write, etc.)
1239
- Fixed the behaviour of gnt-node modify for master candidate demotion;
1240
  now it either aborts cleanly or, if given the new "auto_promote"
1241
  parameter, will automatically promote other nodes as needed
1242
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
1243
  completely prevent Ganeti from working
1244
- Fixed bug for instance export when not all disks were successfully
1245
  exported
1246
- Fixed behaviour of node add when the new node is slow in starting up
1247
  the node daemon
1248
- Fixed handling of signals in the LUXI client, which should improve
1249
  behaviour of command-line scripts
1250
- Added checks for invalid node/instance names in the configuration (now
1251
  flagged during cluster verify)
1252
- Fixed watcher behaviour for disk activation errors
1253
- Fixed two potentially endless loops in http library, which led to the
1254
  RAPI daemon hanging and consuming 100% CPU in some cases
1255
- Fixed bug in RAPI daemon related to hashed passwords
1256
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
1257
  instances
1258
- Enhanced compatibility with non-Debian OSes, but not using absolute
1259
  path in some commands and allowing customisation of the ssh
1260
  configuration directory
1261
- Fixed possible future issue with new Python versions by abiding to the
1262
  proper use of ``__slots__`` attribute on classes
1263
- Added checks that should prevent directory traversal attacks
1264
- Many documentation fixes based on feedback from users
1265

    
1266
New features
1267
~~~~~~~~~~~~
1268

    
1269
- Added an "early_release" more for instance replace disks and node
1270
  evacuate, where we release locks earlier and thus allow higher
1271
  parallelism within the cluster
1272
- Added watcher hooks, intended to allow the watcher to restart other
1273
  daemons (e.g. from the ganeti-nbma project), but they can be used of
1274
  course for any other purpose
1275
- Added a compile-time disable for DRBD barriers, to increase
1276
  performance if the administrator trusts the power supply or the
1277
  storage system to not lose writes
1278
- Added the option of using syslog for logging instead of, or in
1279
  addition to, Ganeti's own log files
1280
- Removed boot restriction for paravirtual NICs for KVM, recent versions
1281
  can indeed boot from a paravirtual NIC
1282
- Added a generic debug level for many operations; while this is not
1283
  used widely yet, it allows one to pass the debug value all the way to
1284
  the OS scripts
1285
- Enhanced the hooks environment for instance moves (failovers,
1286
  migrations) where the primary/secondary nodes changed during the
1287
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1288
- Enhanced data validations for many user-supplied values; one important
1289
  item is the restrictions imposed on instance and node names, which
1290
  might reject some (invalid) host names
1291
- Add a configure-time option to disable file-based storage, if it's not
1292
  needed; this allows greater security separation between the master
1293
  node and the other nodes from the point of view of the inter-node RPC
1294
  protocol
1295
- Added user notification in interactive tools if job is waiting in the
1296
  job queue or trying to acquire locks
1297
- Added log messages when a job is waiting for locks
1298
- Added filtering by node tags in instance operations which admit
1299
  multiple instances (start, stop, reboot, reinstall)
1300
- Added a new tool for cluster mergers, ``cluster-merge``
1301
- Parameters from command line which are of the form ``a=b,c=d`` can now
1302
  use backslash escapes to pass in values which contain commas,
1303
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1304
  ``b,c``
1305
- For KVM, the instance name is the first parameter passed to KVM, so
1306
  that it's more visible in the process list
1307

    
1308

    
1309
Version 2.1.0
1310
-------------
1311

    
1312
*(Released Tue, 2 Mar 2010)*
1313

    
1314
Ganeti 2.1 brings many improvements with it. Major changes:
1315

    
1316
- Added infrastructure to ease automated disk repairs
1317
- Added new daemon to export configuration data in a cheaper way than
1318
  using the remote API
1319
- Instance NICs can now be routed instead of being associated with a
1320
  networking bridge
1321
- Improved job locking logic to reduce impact of jobs acquiring multiple
1322
  locks waiting for other long-running jobs
1323

    
1324
In-depth implementation details can be found in the Ganeti 2.1 design
1325
document.
1326

    
1327
Details
1328
~~~~~~~
1329

    
1330
- Added chroot hypervisor
1331
- Added more options to xen-hvm hypervisor (``kernel_path`` and
1332
  ``device_model``)
1333
- Added more options to xen-pvm hypervisor (``use_bootloader``,
1334
  ``bootloader_path`` and ``bootloader_args``)
1335
- Added the ``use_localtime`` option for the xen-hvm and kvm
1336
  hypervisors, and the default value for this has changed to false (in
1337
  2.0 xen-hvm always enabled it)
1338
- Added luxi call to submit multiple jobs in one go
1339
- Added cluster initialization option to not modify ``/etc/hosts``
1340
  file on nodes
1341
- Added network interface parameters
1342
- Added dry run mode to some LUs
1343
- Added RAPI resources:
1344

    
1345
  - ``/2/instances/[instance_name]/info``
1346
  - ``/2/instances/[instance_name]/replace-disks``
1347
  - ``/2/nodes/[node_name]/evacuate``
1348
  - ``/2/nodes/[node_name]/migrate``
1349
  - ``/2/nodes/[node_name]/role``
1350
  - ``/2/nodes/[node_name]/storage``
1351
  - ``/2/nodes/[node_name]/storage/modify``
1352
  - ``/2/nodes/[node_name]/storage/repair``
1353

    
1354
- Added OpCodes to evacuate or migrate all instances on a node
1355
- Added new command to list storage elements on nodes (``gnt-node
1356
  list-storage``) and modify them (``gnt-node modify-storage``)
1357
- Added new ssconf files with master candidate IP address
1358
  (``ssconf_master_candidates_ips``), node primary IP address
1359
  (``ssconf_node_primary_ips``) and node secondary IP address
1360
  (``ssconf_node_secondary_ips``)
1361
- Added ``ganeti-confd`` and a client library to query the Ganeti
1362
  configuration via UDP
1363
- Added ability to run hooks after cluster initialization and before
1364
  cluster destruction
1365
- Added automatic mode for disk replace (``gnt-instance replace-disks
1366
  --auto``)
1367
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
1368
  after catastrophic data-loss
1369
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
1370
  groups
1371
- Added ``gnt-instance move`` command to move instances
1372
- Added ``gnt-cluster watcher`` command to control watcher
1373
- Added ``gnt-node powercycle`` command to powercycle nodes
1374
- Added new job status field ``lock_status``
1375
- Added parseable error codes to cluster verification (``gnt-cluster
1376
  verify --error-codes``) and made output less verbose (use
1377
  ``--verbose`` to restore previous behaviour)
1378
- Added UUIDs to the main config entities (cluster, nodes, instances)
1379
- Added support for OS variants
1380
- Added support for hashed passwords in the Ganeti remote API users file
1381
  (``rapi_users``)
1382
- Added option to specify maximum timeout on instance shutdown
1383
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
1384
- Added new helper script to start and stop Ganeti daemons
1385
  (``daemon-util``), with the intent to reduce the work necessary to
1386
  adjust Ganeti for non-Debian distributions and to start/stop daemons
1387
  from one place
1388
- Added more unittests
1389
- Fixed critical bug in ganeti-masterd startup
1390
- Removed the configure-time ``kvm-migration-port`` parameter, this is
1391
  now customisable at the cluster level for both the KVM and Xen
1392
  hypervisors using the new ``migration_port`` parameter
1393
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
1394
  reinstalling an instance
1395
- Allowed ``@`` in tag names
1396
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
1397
- Many documentation updates
1398
- Distribute hypervisor files on ``gnt-cluster redist-conf``
1399
- ``gnt-instance reinstall`` can now reinstall multiple instances
1400
- Updated many command line parameters
1401
- Introduced new OS API version 15
1402
- No longer support a default hypervisor
1403
- Treat virtual LVs as inexistent
1404
- Improved job locking logic to reduce lock contention
1405
- Match instance and node names case insensitively
1406
- Reimplemented bash completion script to be more complete
1407
- Improved burnin
1408

    
1409

    
1410
Version 2.0.6
1411
-------------
1412

    
1413
*(Released Thu, 4 Feb 2010)*
1414

    
1415
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
1416
- Fix a string formatting bug
1417
- Improve safety of the code in some error paths
1418
- Improve data validation in the master of values returned from nodes
1419

    
1420

    
1421
Version 2.0.5
1422
-------------
1423

    
1424
*(Released Thu, 17 Dec 2009)*
1425

    
1426
- Fix security issue due to missing validation of iallocator names; this
1427
  allows local and remote execution of arbitrary executables
1428
- Fix failure of gnt-node list during instance removal
1429
- Ship the RAPI documentation in the archive
1430

    
1431

    
1432
Version 2.0.4
1433
-------------
1434

    
1435
*(Released Wed, 30 Sep 2009)*
1436

    
1437
- Fixed many wrong messages
1438
- Fixed a few bugs related to the locking library
1439
- Fixed MAC checking at instance creation time
1440
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
1441
- Fixed a few issues related to signal handling in both daemons and
1442
  scripts
1443
- Fixed the example startup script provided
1444
- Fixed insserv dependencies in the example startup script (patch from
1445
  Debian)
1446
- Fixed handling of drained nodes in the iallocator framework
1447
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
1448
  #528618)
1449
- Fixed error related to invalid job IDs in job polling
1450
- Fixed job/opcode persistence on unclean master shutdown
1451
- Fixed handling of partial job processing after unclean master
1452
  shutdown
1453
- Fixed error reporting from LUs, previously all errors were converted
1454
  into execution errors
1455
- Fixed error reporting from burnin
1456
- Decreased significantly the memory usage of the job queue
1457
- Optimised slightly multi-job submission
1458
- Optimised slightly opcode loading
1459
- Backported the multi-job submit framework from the development
1460
  branch; multi-instance start and stop should be faster
1461
- Added script to clean archived jobs after 21 days; this will reduce
1462
  the size of the queue directory
1463
- Added some extra checks in disk size tracking
1464
- Added an example ethers hook script
1465
- Added a cluster parameter that prevents Ganeti from modifying of
1466
  /etc/hosts
1467
- Added more node information to RAPI responses
1468
- Added a ``gnt-job watch`` command that allows following the ouput of a
1469
  job
1470
- Added a bind-address option to ganeti-rapi
1471
- Added more checks to the configuration verify
1472
- Enhanced the burnin script such that some operations can be retried
1473
  automatically
1474
- Converted instance reinstall to multi-instance model
1475

    
1476

    
1477
Version 2.0.3
1478
-------------
1479

    
1480
*(Released Fri, 7 Aug 2009)*
1481

    
1482
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
1483
  to allow using the pre-2.0.2 behaviour in activation, if any existing
1484
  instances have mismatched disk sizes in the configuration
1485
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
1486
  any configuration mismatches for disk sizes
1487
- Added ``gnt-master cluste-failover --no-voting`` to allow master
1488
  failover to work on two-node clusters
1489
- Fixed the ``--net`` option of ``gnt-backup import``, which was
1490
  unusable
1491
- Fixed detection of OS script errors in ``gnt-backup export``
1492
- Fixed exit code of ``gnt-backup export``
1493

    
1494

    
1495
Version 2.0.2
1496
-------------
1497

    
1498
*(Released Fri, 17 Jul 2009)*
1499

    
1500
- Added experimental support for stripped logical volumes; this should
1501
  enhance performance but comes with a higher complexity in the block
1502
  device handling; stripping is only enabled when passing
1503
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
1504
  affected even in the non-stripped mode
1505
- Improved resiliency against transient failures at the end of DRBD
1506
  resyncs, and in general of DRBD resync checks
1507
- Fixed a couple of issues with exports and snapshot errors
1508
- Fixed a couple of issues in instance listing
1509
- Added display of the disk size in ``gnt-instance info``
1510
- Fixed checking for valid OSes in instance creation
1511
- Fixed handling of the "vcpus" parameter in instance listing and in
1512
  general of invalid parameters
1513
- Fixed http server library, and thus RAPI, to handle invalid
1514
  username/password combinations correctly; this means that now they
1515
  report unauthorized for queries too, not only for modifications,
1516
  allowing earlier detect of configuration problems
1517
- Added a new "role" node list field, equivalent to the master/master
1518
  candidate/drained/offline flags combinations
1519
- Fixed cluster modify and changes of candidate pool size
1520
- Fixed cluster verify error messages for wrong files on regular nodes
1521
- Fixed a couple of issues with node demotion from master candidate role
1522
- Fixed node readd issues
1523
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
1524
- Added a new ``--no-voting`` option for masterfailover to fix failover
1525
  on two-nodes clusters when the former master node is unreachable
1526
- Added instance reinstall over RAPI
1527

    
1528

    
1529
Version 2.0.1
1530
-------------
1531

    
1532
*(Released Tue, 16 Jun 2009)*
1533

    
1534
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
1535
  allow re-adding the start in single-user option (regression from 1.2)
1536
- the watcher writes the instance status to a file, to allow monitoring
1537
  to report the instance status (from the master) based on cached
1538
  results of the watcher's queries; while this can get stale if the
1539
  watcher is being locked due to other work on the cluster, this is
1540
  still an improvement
1541
- the watcher now also restarts the node daemon and the rapi daemon if
1542
  they died
1543
- fixed the watcher to handle full and drained queue cases
1544
- hooks export more instance data in the environment, which helps if
1545
  hook scripts need to take action based on the instance's properties
1546
  (no longer need to query back into ganeti)
1547
- instance failovers when the instance is stopped do not check for free
1548
  RAM, so that failing over a stopped instance is possible in low memory
1549
  situations
1550
- rapi uses queries for tags instead of jobs (for less job traffic), and
1551
  for cluster tags it won't talk to masterd at all but read them from
1552
  ssconf
1553
- a couple of error handling fixes in RAPI
1554
- drbd handling: improved the error handling of inconsistent disks after
1555
  resync to reduce the frequency of "there are some degraded disks for
1556
  this instance" messages
1557
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
1558
  error handling path called a wrong function name)
1559

    
1560

    
1561
Version 2.0.0 final
1562
-------------------
1563

    
1564
*(Released Wed, 27 May 2009)*
1565

    
1566
- no changes from rc5
1567

    
1568

    
1569
Version 2.0 release candidate 5
1570
-------------------------------
1571

    
1572
*(Released Wed, 20 May 2009)*
1573

    
1574
- fix a couple of bugs (validation, argument checks)
1575
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
1576
- some small improvements to RAPI and IAllocator
1577
- make watcher automatically start the master daemon if down
1578

    
1579

    
1580
Version 2.0 release candidate 4
1581
-------------------------------
1582

    
1583
*(Released Mon, 27 Apr 2009)*
1584

    
1585
- change the OS list to not require locks; this helps with big clusters
1586
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
1587
  volume group is broken
1588
- ``gnt-instance info``, without any arguments, doesn't run for all
1589
  instances anymore; either pass ``--all`` or pass the desired
1590
  instances; this helps against mistakes on big clusters where listing
1591
  the information for all instances takes a long time
1592
- miscellaneous doc and man pages fixes
1593

    
1594

    
1595
Version 2.0 release candidate 3
1596
-------------------------------
1597

    
1598
*(Released Wed, 8 Apr 2009)*
1599

    
1600
- Change the internal locking model of some ``gnt-node`` commands, in
1601
  order to reduce contention (and blocking of master daemon) when
1602
  batching many creation/reinstall jobs
1603
- Fixes to Xen soft reboot
1604
- No longer build documentation at build time, instead distribute it in
1605
  the archive, in order to reduce the need for the whole docbook/rst
1606
  toolchains
1607

    
1608

    
1609
Version 2.0 release candidate 2
1610
-------------------------------
1611

    
1612
*(Released Fri, 27 Mar 2009)*
1613

    
1614
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
1615
- Fix watcher startup sequence, improves the behaviour of busy clusters
1616
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
1617
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
1618
  bind address and other places
1619
- Some documentation fixes and updates
1620

    
1621

    
1622
Version 2.0 release candidate 1
1623
-------------------------------
1624

    
1625
*(Released Mon, 2 Mar 2009)*
1626

    
1627
- More documentation updates, now all docs should be more-or-less
1628
  up-to-date
1629
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
1630
  etc.)
1631
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
1632
  and KVM)
1633
- Fix an issue related to $libdir/run/ganeti and cluster creation
1634

    
1635

    
1636
Version 2.0 beta 2
1637
------------------
1638

    
1639
*(Released Thu, 19 Feb 2009)*
1640

    
1641
- Xen PVM and KVM have switched the default value for the instance root
1642
  disk to the first partition on the first drive, instead of the whole
1643
  drive; this means that the OS installation scripts must be changed
1644
  accordingly
1645
- Man pages have been updated
1646
- RAPI has been switched by default to HTTPS, and the exported functions
1647
  should all work correctly
1648
- RAPI v1 has been removed
1649
- Many improvements to the KVM hypervisor
1650
- Block device errors are now better reported
1651
- Many other bugfixes and small improvements
1652

    
1653

    
1654
Version 2.0 beta 1
1655
------------------
1656

    
1657
*(Released Mon, 26 Jan 2009)*
1658

    
1659
- Version 2 is a general rewrite of the code and therefore the
1660
  differences are too many to list, see the design document for 2.0 in
1661
  the ``doc/`` subdirectory for more details
1662
- In this beta version there is not yet a migration path from 1.2 (there
1663
  will be one in the final 2.0 release)
1664
- A few significant changes are:
1665

    
1666
  - all commands are executed by a daemon (``ganeti-masterd``) and the
1667
    various ``gnt-*`` commands are just front-ends to it
1668
  - all the commands are entered into, and executed from a job queue,
1669
    see the ``gnt-job(8)`` manpage
1670
  - the RAPI daemon supports read-write operations, secured by basic
1671
    HTTP authentication on top of HTTPS
1672
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
1673
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
1674
    to migrate to DRBD 8 first while still running Ganeti 1.2)
1675
  - DRBD devices are using statically allocated minor numbers, which
1676
    will be assigned to existing instances during the migration process
1677
  - there is support for both Xen PVM and Xen HVM instances running on
1678
    the same cluster
1679
  - KVM virtualization is supported too
1680
  - file-based storage has been implemented, which means that it is
1681
    possible to run the cluster without LVM and DRBD storage, for
1682
    example using a shared filesystem exported from shared storage (and
1683
    still have live migration)
1684

    
1685

    
1686
Version 1.2.7
1687
-------------
1688

    
1689
*(Released Tue, 13 Jan 2009)*
1690

    
1691
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
1692
- Reuse the old instance mac address by default on instance import, if
1693
  the instance name is the same.
1694
- Handle situations in which the node info rpc returns incomplete
1695
  results (issue 46)
1696
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
1697
- Improved version of batcher:
1698

    
1699
  - state file support
1700
  - instance mac address support
1701
  - support for HVM clusters/instances
1702

    
1703
- Add an option to show the number of cpu sockets and nodes in
1704
  ``gnt-node list``
1705
- Support OSes that handle more than one version of the OS api (but do
1706
  not change the current API in any other way)
1707
- Fix ``gnt-node migrate``
1708
- ``gnt-debug`` man page
1709
- Fixes various more typos and small issues
1710
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
1711

    
1712

    
1713
Version 1.2.6
1714
-------------
1715

    
1716
*(Released Wed, 24 Sep 2008)*
1717

    
1718
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
1719
  type of disk exported to fully virtualized instances.
1720
- provide access to the serial console of HVM instances
1721
- instance auto_balance flag, set by default. If turned off it will
1722
  avoid warnings on cluster verify if there is not enough memory to fail
1723
  over an instance. in the future it will prevent automatically failing
1724
  it over when we will support that.
1725
- batcher tool for instance creation, see ``tools/README.batcher``
1726
- ``gnt-instance reinstall --select-os`` to interactively select a new
1727
  operating system when reinstalling an instance.
1728
- when changing the memory amount on instance modify a check has been
1729
  added that the instance will be able to start. also warnings are
1730
  emitted if the instance will not be able to fail over, if auto_balance
1731
  is true.
1732
- documentation fixes
1733
- sync fields between ``gnt-instance list/modify/add/import``
1734
- fix a race condition in drbd when the sync speed was set after giving
1735
  the device a remote peer.
1736

    
1737

    
1738
Version 1.2.5
1739
-------------
1740

    
1741
*(Released Tue, 22 Jul 2008)*
1742

    
1743
- note: the allowed size and number of tags per object were reduced
1744
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
1745
- fixed twisted 8.x compatibility
1746
- fixed ``gnt-instance replace-disks`` with iallocator
1747
- add TCP keepalives on twisted connections to detect restarted nodes
1748
- disk increase support, see ``gnt-instance grow-disk``
1749
- implement bulk node/instance query for RAPI
1750
- add tags in node/instance listing (optional)
1751
- experimental migration (and live migration) support, read the man page
1752
  for ``gnt-instance migrate``
1753
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
1754
  has some small improvements in handling its state file
1755

    
1756

    
1757
Version 1.2.4
1758
-------------
1759

    
1760
*(Released Fri, 13 Jun 2008)*
1761

    
1762
- Experimental readonly, REST-based remote API implementation;
1763
  automatically started on master node, TCP port 5080, if enabled by
1764
  ``--enable-rapi`` parameter to configure script.
1765
- Instance allocator support. Add and import instance accept a
1766
  ``--iallocator`` parameter, and call that instance allocator to decide
1767
  which node to use for the instance. The iallocator document describes
1768
  what's expected from an allocator script.
1769
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
1770
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
1771
  node is lost there is still enough memory to fail over the instances
1772
  that reside on it.
1773
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
1774
  ``gnt-cluster verify``, to check for site-specific compliance. All the
1775
  hooks will run, and their output, if any, will be displayed. Any
1776
  failing hook will make the verification return an error value.
1777
- ``gnt-cluster verify`` now checks that its peers are reachable on the
1778
  primary and secondary interfaces
1779
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
1780
  that is still declared as part of the cluster and has failed.
1781
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
1782
  specifying output fields, that just adds the chosen fields to the
1783
  default ones.
1784
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
1785
  export from the filesystem.
1786
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
1787
  have been added. Using them you can enable/disable acpi and pae
1788
  support, and specify a path for a cd image to be exported to the
1789
  instance. These parameters as the name suggest only work on HVM
1790
  clusters.
1791
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
1792
  PAE support will be set to the previously hardcoded values, but the
1793
  (previously hardcoded) path to the CDROM ISO image will be unset and
1794
  if required, needs to be set manually with ``gnt-instance modify``
1795
  after the upgrade.
1796
- The address to which an instance's VNC console is bound is now
1797
  selectable per-instance, rather than being cluster wide. Of course
1798
  this only applies to instances controlled via VNC, so currently just
1799
  applies to HVM clusters.
1800

    
1801

    
1802
Version 1.2.3
1803
-------------
1804

    
1805
*(Released Mon, 18 Feb 2008)*
1806

    
1807
- more tweaks to the disk activation code (especially helpful for DRBD)
1808
- change the default ``gnt-instance list`` output format, now there is
1809
  one combined status field (see the manpage for the exact values this
1810
  field will have)
1811
- some more fixes for the mac export to hooks change
1812
- make Ganeti not break with DRBD 8.2.x (which changed the version
1813
  format in ``/proc/drbd``) (issue 24)
1814
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
1815
  template, allowing migration from DRBD0.7+MD to DRBD8
1816

    
1817

    
1818
Version 1.2.2
1819
-------------
1820

    
1821
*(Released Wed, 30 Jan 2008)*
1822

    
1823
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
1824
  support (issue 23)
1825
- add command aliases infrastructure and a few aliases
1826
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
1827
  man pages and the ``--help`` option of ``gnt-node
1828
  list``/``gnt-instance list``
1829
- fix ``gnt-backup list`` with down nodes (issue 21)
1830
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
1831
- fix the dist archive and add a check for including svn/git files in
1832
  the future
1833
- some developer-related changes: improve the burnin and the QA suite,
1834
  add an upload script for testing during development
1835

    
1836

    
1837
Version 1.2.1
1838
-------------
1839

    
1840
*(Released Wed, 16 Jan 2008)*
1841

    
1842
- experimental HVM support, read the install document, section
1843
  "Initializing the cluster"
1844
- allow for the PVM hypervisor per-instance kernel and initrd paths
1845
- add a new command ``gnt-cluster verify-disks`` which uses a new
1846
  algorithm to improve the reconnection of the DRBD pairs if the device
1847
  on the secondary node has gone away
1848
- make logical volume code auto-activate LVs at disk activation time
1849
- slightly improve the speed of activating disks
1850
- allow specification of the MAC address at instance creation time, and
1851
  changing it later via ``gnt-instance modify``
1852
- fix handling of external commands that generate lots of output on
1853
  stderr
1854
- update documentation with regard to minimum version of DRBD8 supported
1855

    
1856

    
1857
Version 1.2.0
1858
-------------
1859

    
1860
*(Released Tue, 4 Dec 2007)*
1861

    
1862
- Log the ``xm create`` output to the node daemon log on failure (to
1863
  help diagnosing the error)
1864
- In debug mode, log all external commands output if failed to the logs
1865
- Change parsing of lvm commands to ignore stderr
1866

    
1867

    
1868
Version 1.2b3
1869
-------------
1870

    
1871
*(Released Wed, 28 Nov 2007)*
1872

    
1873
- Another round of updates to the DRBD 8 code to deal with more failures
1874
  in the replace secondary node operation
1875
- Some more logging of failures in disk operations (lvm, drbd)
1876
- A few documentation updates
1877
- QA updates
1878

    
1879

    
1880
Version 1.2b2
1881
-------------
1882

    
1883
*(Released Tue, 13 Nov 2007)*
1884

    
1885
- Change configuration file format from Python's Pickle to JSON.
1886
  Upgrading is possible using the cfgupgrade utility.
1887
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
1888
  faster replace disks and is more stable (DRBD 8 has many improvements
1889
  compared to DRBD 0.7)
1890
- Added command line tags support (see man pages for ``gnt-instance``,
1891
  ``gnt-node``, ``gnt-cluster``)
1892
- Added instance rename support
1893
- Added multi-instance startup/shutdown
1894
- Added cluster rename support
1895
- Added ``gnt-node evacuate`` to simplify some node operations
1896
- Added instance reboot operation that can speedup reboot as compared to
1897
  stop and start
1898
- Soften the requirement that hostnames are in FQDN format
1899
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
1900
  reboots
1901
- Removed dependency on debian's patched fping that uses the
1902
  non-standard ``-S`` option
1903
- Now the OS definitions are searched for in multiple, configurable
1904
  paths (easier for distros to package)
1905
- Some changes to the hooks infrastructure (especially the new
1906
  post-configuration update hook)
1907
- Other small bugfixes
1908

    
1909
.. vim: set textwidth=72 syntax=rst :
1910
.. Local Variables:
1911
.. mode: rst
1912
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1913
.. End: