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1
News
2
====
3

    
4

    
5
Version 2.5.2
6
-------------
7

    
8
*(Released Tue, 24 Jul 2012)*
9

    
10
A small bugfix release, with no new features:
11

    
12
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
13
  different default shell (e.g. Debian, Ubuntu)
14
- fixed KVM startup and live migration with a custom keymap (fixes Issue
15
  243 and Debian bug #650664)
16
- fixed compatibility with KVM versions that don't support multiple boot
17
  devices (fixes Issue 230 and Debian bug #624256)
18

    
19
Additionally, a few fixes were done to the build system (fixed parallel
20
build failures) and to the unittests (fixed race condition in test for
21
*FileID functions, and the default enable/disable mode for QA test is
22
now customisable).
23

    
24

    
25
Version 2.5.1
26
-------------
27

    
28
*(Released Fri, 11 May 2012)*
29

    
30
A small bugfix release.
31

    
32
The main issues solved are on the topic of compatibility with newer LVM
33
releases:
34

    
35
- fixed parsing of ``lv_attr`` field
36
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
37
  the ``--force`` flag is needed
38

    
39
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
40
to accept kernel 3.x too (was hardcoded to 2.6.*).
41

    
42
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
43
of hook results and that also made display of other errors suboptimal
44
was fixed; the code behaves now like 2.4 and earlier.
45

    
46
Another change in 2.5, the cleanup of the OS scripts environment, is too
47
aggressive: it removed even the ``PATH`` variable, which requires the OS
48
scripts to *always* need to export it. Since this is a bit too strict,
49
we now export a minimal PATH, the same that we export for hooks.
50

    
51
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
52
integrated into this release.
53

    
54
Finally, a few other miscellaneous changes were done (no new features,
55
just small improvements):
56

    
57
- Fix ``gnt-group --help`` display
58
- Fix hardcoded Xen kernel path
59
- Fix grow-disk handling of invalid units
60
- Update synopsis for ``gnt-cluster repair-disk-sizes``
61
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
62

    
63

    
64
Version 2.5.0
65
-------------
66

    
67
*(Released Thu, 12 Apr 2012)*
68

    
69
Incompatible/important changes and bugfixes
70
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
71

    
72
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
73
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
74
  to match the underlying LUXI interface.
75
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
76
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
77
  not maintain backwards-compatibility as the underlying operation
78
  changed in an incompatible way. The RAPI client can talk to old
79
  servers, but it needs to be told so as the return value changed.
80
- When creating file-based instances via RAPI, the ``file_driver``
81
  parameter no longer defaults to ``loop`` and must be specified.
82
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
83
  ``link`` instead.
84
- Support for the undocumented and deprecated RAPI instance creation
85
  request format version 0 has been dropped. Use version 1, supported
86
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
87
- Pyparsing 1.4.6 or above is required, see :doc:`installation
88
  documentation <install>`.
89
- The "cluster-verify" hooks are now executed per group by the
90
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
91
  if you just run ``gnt-cluster verify``, which generates one opcode per
92
  group.
93
- The environment as passed to the OS scripts is cleared, and thus no
94
  environment variables defined in the node daemon's environment will be
95
  inherited by the scripts.
96
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
97
  deprecated.
98
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
99
  support operations involving multiple node groups.
100
- Offline nodes are ignored when failing over an instance.
101
- Support for KVM version 1.0, which changed the version reporting format
102
  from 3 to 2 digits.
103
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
104
  removal.
105
- ``Makefile`` is now compatible with Automake 1.11.2
106
- Includes all bugfixes made in the 2.4 series
107

    
108
New features
109
~~~~~~~~~~~~
110

    
111
- The ganeti-htools project has been merged into the ganeti-core source
112
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
113
- Implemented support for :doc:`shared storage <design-shared-storage>`.
114
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
115
  GPT-style partition tables (requires `parted
116
  <http://www.gnu.org/s/parted/>`_).
117
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
118
- Allowed adding tags on instance creation.
119
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
120
- Allow instances to be started in a paused state, enabling the user to
121
  see the complete console output on boot using the console.
122
- Added new hypervisor flag to control default reboot behaviour
123
  (``reboot_behavior``).
124
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
125
- Improved out-of-band management support:
126

    
127
  - Added ``gnt-node health`` command reporting the health status of
128
    nodes.
129
  - Added ``gnt-node power`` command to manage power status of nodes.
130
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
131

    
132
- Instance migration can fall back to failover if instance is not
133
  running.
134
- Filters can be used when listing nodes, instances, groups and locks;
135
  see *ganeti(7)* manpage.
136
- Added post-execution status as variables to :doc:`hooks <hooks>`
137
  environment.
138
- Instance tags are exported/imported together with the instance.
139
- When given an explicit job ID, ``gnt-job info`` will work for archived
140
  jobs.
141
- Jobs can define dependencies on other jobs (not yet supported via
142
  RAPI or command line, but used by internal commands and usable via
143
  LUXI).
144

    
145
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
146
    dependencies.
147

    
148
- Instance failover is now available as a RAPI resource
149
  (``/2/instances/[instance_name]/failover``).
150
- ``gnt-instance info`` defaults to static information if primary node
151
  is offline.
152
- Opcodes have a new ``comment`` attribute.
153
- Added basic SPICE support to KVM hypervisor.
154
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
155

    
156
Node group improvements
157
~~~~~~~~~~~~~~~~~~~~~~~
158

    
159
- ``gnt-cluster verify`` has been modified to check groups separately,
160
  thereby improving performance.
161
- Node group support has been added to ``gnt-cluster verify-disks``,
162
  which now operates per node group.
163
- Watcher has been changed to work better with node groups.
164

    
165
  - One process and state file per node group.
166
  - Slow watcher in one group doesn't block other group's watcher.
167

    
168
- Added new command, ``gnt-group evacuate``, to move all instances in a
169
  node group to other groups.
170
- Added ``gnt-instance change-group`` to move an instance to another
171
  node group.
172
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
173
  per-group operations.
174
- Node groups can be tagged.
175
- Some operations switch from an exclusive to a shared lock as soon as
176
  possible.
177
- Instance's primary and secondary nodes' groups are now available as
178
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
179
  and ``snodes.group.uuid``).
180

    
181
Misc
182
~~~~
183

    
184
- Numerous updates to documentation and manpages.
185

    
186
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
187
    descriptions.
188
  - Some opcode/job results are now also documented, see :doc:`RAPI
189
    <rapi>`.
190

    
191
- A lockset's internal lock is now also visible in lock monitor.
192
- Log messages from job queue workers now contain information about the
193
  opcode they're processing.
194
- ``gnt-instance console`` no longer requires the instance lock.
195
- A short delay when waiting for job changes reduces the number of LUXI
196
  requests significantly.
197
- DRBD metadata volumes are overwritten with zeros during disk creation.
198
- Out-of-band commands no longer acquire the cluster lock in exclusive
199
  mode.
200
- ``devel/upload`` now uses correct permissions for directories.
201

    
202

    
203
Version 2.5.0 rc6
204
-----------------
205

    
206
*(Released Fri, 23 Mar 2012)*
207

    
208
This was the sixth release candidate of the 2.5 series.
209

    
210

    
211
Version 2.5.0 rc5
212
-----------------
213

    
214
*(Released Mon, 9 Jan 2012)*
215

    
216
This was the fifth release candidate of the 2.5 series.
217

    
218

    
219
Version 2.5.0 rc4
220
-----------------
221

    
222
*(Released Thu, 27 Oct 2011)*
223

    
224
This was the fourth release candidate of the 2.5 series.
225

    
226

    
227
Version 2.5.0 rc3
228
-----------------
229

    
230
*(Released Wed, 26 Oct 2011)*
231

    
232
This was the third release candidate of the 2.5 series.
233

    
234

    
235
Version 2.5.0 rc2
236
-----------------
237

    
238
*(Released Tue, 18 Oct 2011)*
239

    
240
This was the second release candidate of the 2.5 series.
241

    
242

    
243
Version 2.5.0 rc1
244
-----------------
245

    
246
*(Released Tue, 4 Oct 2011)*
247

    
248
This was the first release candidate of the 2.5 series.
249

    
250

    
251
Version 2.5.0 beta3
252
-------------------
253

    
254
*(Released Wed, 31 Aug 2011)*
255

    
256
This was the third beta release of the 2.5 series.
257

    
258

    
259
Version 2.5.0 beta2
260
-------------------
261

    
262
*(Released Mon, 22 Aug 2011)*
263

    
264
This was the second beta release of the 2.5 series.
265

    
266

    
267
Version 2.5.0 beta1
268
-------------------
269

    
270
*(Released Fri, 12 Aug 2011)*
271

    
272
This was the first beta release of the 2.5 series.
273

    
274

    
275
Version 2.4.5
276
-------------
277

    
278
*(Released Thu, 27 Oct 2011)*
279

    
280
- Fixed bug when parsing command line parameter values ending in
281
  backslash
282
- Fixed assertion error after unclean master shutdown
283
- Disable HTTP client pool for RPC, significantly reducing memory usage
284
  of master daemon
285
- Fixed queue archive creation with wrong permissions
286

    
287

    
288
Version 2.4.4
289
-------------
290

    
291
*(Released Tue, 23 Aug 2011)*
292

    
293
Small bug-fixes:
294

    
295
- Fixed documentation for importing with ``--src-dir`` option
296
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
297
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
298

    
299

    
300
Version 2.4.3
301
-------------
302

    
303
*(Released Fri, 5 Aug 2011)*
304

    
305
Many bug-fixes and a few small features:
306

    
307
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
308
  issues when you tried to add an instance with two MAC addresses in one
309
  request
310
- KVM: fixed per-instance stored UID value
311
- KVM: configure bridged NICs at migration start
312
- KVM: Fix a bug where instance will not start with never KVM versions
313
  (>= 0.14)
314
- Added OS search path to ``gnt-cluster info``
315
- Fixed an issue with ``file_storage_dir`` where you were forced to
316
  provide an absolute path, but the documentation states it is a
317
  relative path, the documentation was right
318
- Added a new parameter to instance stop/start called ``--no-remember``
319
  that will make the state change to not be remembered
320
- Implemented ``no_remember`` at RAPI level
321
- Improved the documentation
322
- Node evacuation: don't call IAllocator if node is already empty
323
- Fixed bug in DRBD8 replace disks on current nodes
324
- Fixed bug in recreate-disks for DRBD instances
325
- Moved assertion checking locks in ``gnt-instance replace-disks``
326
  causing it to abort with not owning the right locks for some situation
327
- Job queue: Fixed potential race condition when cancelling queued jobs
328
- Fixed off-by-one bug in job serial generation
329
- ``gnt-node volumes``: Fix instance names
330
- Fixed aliases in bash completion
331
- Fixed a bug in reopening log files after being sent a SIGHUP
332
- Added a flag to burnin to allow specifying VCPU count
333
- Bugfixes to non-root Ganeti configuration
334

    
335

    
336
Version 2.4.2
337
-------------
338

    
339
*(Released Thu, 12 May 2011)*
340

    
341
Many bug-fixes and a few new small features:
342

    
343
- Fixed a bug related to log opening failures
344
- Fixed a bug in instance listing with orphan instances
345
- Fixed a bug which prevented resetting the cluster-level node parameter
346
  ``oob_program`` to the default
347
- Many fixes related to the ``cluster-merge`` tool
348
- Fixed a race condition in the lock monitor, which caused failures
349
  during (at least) creation of many instances in parallel
350
- Improved output for gnt-job info
351
- Removed the quiet flag on some ssh calls which prevented debugging
352
  failures
353
- Improved the N+1 failure messages in cluster verify by actually
354
  showing the memory values (needed and available)
355
- Increased lock attempt timeouts so that when executing long operations
356
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
357
  too early and thus prevent the use of the 'fair' mechanism
358
- Changed instance query data (``gnt-instance info``) to not acquire
359
  locks unless needed, thus allowing its use on locked instance if only
360
  static information is asked for
361
- Improved behaviour with filesystems that do not support rename on an
362
  opened file
363
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
364
  kept locks on all nodes during the wipe, which is unneeded
365
- Fixed ``gnt-watcher`` handling of errors during hooks execution
366
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
367
  10GiB) which caused the wipe to fail right at the end in some cases
368
- Fixed master IP activation when doing master failover with no-voting
369
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
370
  the master node itself
371
- Fixed potential data-loss in under disk full conditions, where Ganeti
372
  wouldn't check correctly the return code and would consider
373
  partially-written files 'correct'
374
- Fixed bug related to multiple VGs and DRBD disk replacing
375
- Added new disk parameter ``metavg`` that allows placement of the meta
376
  device for DRBD in a different volume group
377
- Fixed error handling in the node daemon when the system libc doesn't
378
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
379
- Fixed lock release during replace-disks, which kept cluster-wide locks
380
  when doing disk replaces with an iallocator script
381
- Added check for missing bridges in cluster verify
382
- Handle EPIPE errors while writing to the terminal better, so that
383
  piping the output to e.g. ``less`` doesn't cause a backtrace
384
- Fixed rare case where a ^C during Luxi calls could have been
385
  interpreted as server errors, instead of simply terminating
386
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
387
  assign-nodes``)
388
- Added a few more parameters to the KVM hypervisor, allowing a second
389
  CDROM, custom disk type for CDROMs and a floppy image
390
- Removed redundant message in instance rename when the name is given
391
  already as a FQDN
392
- Added option to ``gnt-instance recreate-disks`` to allow creating the
393
  disks on new nodes, allowing recreation when the original instance
394
  nodes are completely gone
395
- Added option when converting disk templates to DRBD to skip waiting
396
  for the resync, in order to make the instance available sooner
397
- Added two new variables to the OS scripts environment (containing the
398
  instance's nodes)
399
- Made the root_path and optional parameter for the xen-pvm hypervisor,
400
  to allow use of ``pvgrub`` as bootloader
401
- Changed the instance memory modifications to only check out-of-memory
402
  conditions on memory increases, and turned the secondary node warnings
403
  into errors (they can still be overridden via ``--force``)
404
- Fixed the handling of a corner case when the Python installation gets
405
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
406
  to execute a command that doesn't exist
407
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
408
  node of the instance returned failures during instance shutdown; this
409
  adds the option ``--ignore-consistency`` to gnt-instance move
410

    
411
And as usual, various improvements to the error messages, documentation
412
and man pages.
413

    
414
Version 2.4.1
415
-------------
416

    
417
*(Released Wed, 09 Mar 2011)*
418

    
419
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
420
the RAPI users file if run twice (even with ``--dry-run``).
421

    
422
The release fixes that bug (nothing else changed).
423

    
424

    
425
Version 2.4.0
426
-------------
427

    
428
*(Released Mon, 07 Mar 2011)*
429

    
430
Final 2.4.0 release. Just a few small fixes:
431

    
432
- Fixed RAPI node evacuate
433
- Fixed the kvm-ifup script
434
- Fixed internal error handling for special job cases
435
- Updated man page to specify the escaping feature for options
436

    
437

    
438
Version 2.4.0 rc3
439
-----------------
440

    
441
*(Released Mon, 28 Feb 2011)*
442

    
443
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
444
that this feature wiped the disks of the wrong instance, leading to loss
445
of data.
446

    
447
Other changes:
448

    
449
- Fixed title of query field containing instance name
450
- Expanded the glossary in the documentation
451
- Fixed one unittest (internal issue)
452

    
453

    
454
Version 2.4.0 rc2
455
-----------------
456

    
457
*(Released Mon, 21 Feb 2011)*
458

    
459
A number of bug fixes plus just a couple functionality changes.
460

    
461
On the user-visible side, the ``gnt-* list`` command output has changed
462
with respect to "special" field states. The current rc1 style of display
463
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
464
the default output mode special fields states are displayed as follows:
465

    
466
- Offline resource: ``*``
467
- Unavailable/not applicable: ``-``
468
- Data missing (RPC failure): ``?``
469
- Unknown field: ``??``
470

    
471
Another user-visible change is the addition of ``--force-join`` to
472
``gnt-node add``.
473

    
474
As for bug fixes:
475

    
476
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
477
- Fixed regression in RAPI/instance reinstall where all parameters were
478
  required (instead of optional)
479
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
480
- Fixed iallocator usage (offline nodes were not considered offline)
481
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
482
- Fixed hypervisor and OS parameter validation with respect to
483
  non-vm_capable nodes
484
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
485
  cosmetic)
486
- Fixed ``tools/listrunner`` with respect to agent-based usage
487

    
488

    
489
Version 2.4.0 rc1
490
-----------------
491

    
492
*(Released Fri,  4 Feb 2011)*
493

    
494
Many changes and fixes since the beta1 release. While there were some
495
internal changes, the code has been mostly stabilised for the RC
496
release.
497

    
498
Note: the dumb allocator was removed in this release, as it was not kept
499
up-to-date with the IAllocator protocol changes. It is recommended to
500
use the ``hail`` command from the ganeti-htools package.
501

    
502
Note: the 2.4 and up versions of Ganeti are not compatible with the
503
0.2.x branch of ganeti-htools. You need to upgrade to
504
ganeti-htools-0.3.0 (or later).
505

    
506
Regressions fixed from 2.3
507
~~~~~~~~~~~~~~~~~~~~~~~~~~
508

    
509
- Fixed the ``gnt-cluster verify-disks`` command
510
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
511
  serially on nodes)
512
- Fixed disk adoption breakage
513
- Fixed wrong headers in instance listing for field aliases
514

    
515
Other bugs fixed
516
~~~~~~~~~~~~~~~~
517

    
518
- Fixed corner case in KVM handling of NICs
519
- Fixed many cases of wrong handling of non-vm_capable nodes
520
- Fixed a bug where a missing instance symlink was not possible to
521
  recreate with any ``gnt-*`` command (now ``gnt-instance
522
  activate-disks`` does it)
523
- Fixed the volume group name as reported by ``gnt-cluster
524
  verify-disks``
525
- Increased timeouts for the import-export code, hopefully leading to
526
  fewer aborts due network or instance timeouts
527
- Fixed bug in ``gnt-node list-storage``
528
- Fixed bug where not all daemons were started on cluster
529
  initialisation, but only at the first watcher run
530
- Fixed many bugs in the OOB implementation
531
- Fixed watcher behaviour in presence of instances with offline
532
  secondaries
533
- Fixed instance list output for instances running on the wrong node
534
- a few fixes to the cluster-merge tool, but it still cannot merge
535
  multi-node groups (currently it is not recommended to use this tool)
536

    
537

    
538
Improvements
539
~~~~~~~~~~~~
540

    
541
- Improved network configuration for the KVM hypervisor
542
- Added e1000 as a supported NIC for Xen-HVM
543
- Improved the lvmstrap tool to also be able to use partitions, as
544
  opposed to full disks
545
- Improved speed of disk wiping (the cluster parameter
546
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
547
  of instance creations
548
- Added documentation for the OS parameters
549
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
550
  hypervisor is not responding
551
- Added display of blacklisted and hidden OS information in
552
  ``gnt-cluster info``
553
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
554
  NIC and node parameters, which might create problems with currently
555
  invalid (but undetected) configuration files, but prevents validation
556
  failures when unrelated parameters are modified
557
- Changed cluster initialisation to wait for the master daemon to become
558
  available
559
- Expanded the RAPI interface:
560

    
561
  - Added config redistribution resource
562
  - Added activation/deactivation of instance disks
563
  - Added export of console information
564

    
565
- Implemented log file reopening on SIGHUP, which allows using
566
  logrotate(8) for the Ganeti log files
567
- Added a basic OOB helper script as an example
568

    
569

    
570
Version 2.4.0 beta1
571
-------------------
572

    
573
*(Released Fri, 14 Jan 2011)*
574

    
575
User-visible
576
~~~~~~~~~~~~
577

    
578
- Fixed timezone issues when formatting timestamps
579
- Added support for node groups, available via ``gnt-group`` and other
580
  commands
581
- Added out-of-band framework and management, see :doc:`design
582
  document <design-oob>`
583
- Removed support for roman numbers from ``gnt-node list`` and
584
  ``gnt-instance list``.
585
- Allowed modification of master network interface via ``gnt-cluster
586
  modify --master-netdev``
587
- Accept offline secondaries while shutting down instance disks
588
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
589
- Added support for multiple LVM volume groups
590
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
591
  requested
592
- Added commands to list available fields:
593

    
594
  - ``gnt-node list-fields``
595
  - ``gnt-group list-fields``
596
  - ``gnt-instance list-fields``
597

    
598
- Updated documentation and man pages
599

    
600
Integration
601
~~~~~~~~~~~
602

    
603
- Moved ``rapi_users`` file into separate directory, now named
604
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
605
  symlink
606
- Added new tool for running commands on many machines,
607
  ``tools/ganeti-listrunner``
608
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
609
  improving the ``gnt-instance console`` output
610
- Allowed customisation of disk index separator at ``configure`` time
611
- Export node group allocation policy to :doc:`iallocator <iallocator>`
612
- Added support for non-partitioned md disks in ``lvmstrap``
613
- Added script to gracefully power off KVM instances
614
- Split ``utils`` module into smaller parts
615
- Changed query operations to return more detailed information, e.g.
616
  whether an information is unavailable due to an offline node. To use
617
  this new functionality, the LUXI call ``Query`` must be used. Field
618
  information is now stored by the master daemon and can be retrieved
619
  using ``QueryFields``. Instances, nodes and groups can also be queried
620
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
621
  exposed via RAPI). The following commands make use of this
622
  infrastructure change:
623

    
624
  - ``gnt-group list``
625
  - ``gnt-group list-fields``
626
  - ``gnt-node list``
627
  - ``gnt-node list-fields``
628
  - ``gnt-instance list``
629
  - ``gnt-instance list-fields``
630
  - ``gnt-debug locks``
631

    
632
Remote API
633
~~~~~~~~~~
634

    
635
- New RAPI resources (see :doc:`rapi`):
636

    
637
  - ``/2/modify``
638
  - ``/2/groups``
639
  - ``/2/groups/[group_name]``
640
  - ``/2/groups/[group_name]/assign-nodes``
641
  - ``/2/groups/[group_name]/modify``
642
  - ``/2/groups/[group_name]/rename``
643
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
644

    
645
- RAPI changes:
646

    
647
  - Implemented ``no_install`` for instance creation
648
  - Implemented OS parameters for instance reinstallation, allowing
649
    use of special settings on reinstallation (e.g. for preserving data)
650

    
651
Misc
652
~~~~
653

    
654
- Added IPv6 support in import/export
655
- Pause DRBD synchronization while wiping disks on instance creation
656
- Updated unittests and QA scripts
657
- Improved network parameters passed to KVM
658
- Converted man pages from docbook to reStructuredText
659

    
660

    
661
Version 2.3.1
662
-------------
663

    
664
*(Released Mon, 20 Dec 2010)*
665

    
666
Released version 2.3.1~rc1 without any changes.
667

    
668

    
669
Version 2.3.1 rc1
670
-----------------
671

    
672
*(Released Wed, 1 Dec 2010)*
673

    
674
- impexpd: Disable OpenSSL compression in socat if possible (backport
675
  from master, commit e90739d625b, see :doc:`installation guide
676
  <install-quick>` for details)
677
- Changed unittest coverage report to exclude test scripts
678
- Added script to check version format
679

    
680

    
681
Version 2.3.0
682
-------------
683

    
684
*(Released Wed, 1 Dec 2010)*
685

    
686
Released version 2.3.0~rc1 without any changes.
687

    
688

    
689
Version 2.3.0 rc1
690
-----------------
691

    
692
*(Released Fri, 19 Nov 2010)*
693

    
694
A number of bugfixes and documentation updates:
695

    
696
- Update ganeti-os-interface documentation
697
- Fixed a bug related to duplicate MACs or similar items which should be
698
  unique
699
- Fix breakage in OS state modify
700
- Reinstall instance: disallow offline secondaries (fixes bug related to
701
  OS changing but reinstall failing)
702
- plus all the other fixes between 2.2.1 and 2.2.2
703

    
704

    
705
Version 2.3.0 rc0
706
-----------------
707

    
708
*(Released Tue, 2 Nov 2010)*
709

    
710
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
711
- Fixed master failover race with watcher
712
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
713
  configuration
714
- Accept previously stopped instance for export with instance removal
715
- Simplify and extend the environment variables for instance OS scripts
716
- Added new node flags, ``master_capable`` and ``vm_capable``
717
- Added optional instance disk wiping prior during allocation. This is a
718
  cluster-wide option and can be set/modified using
719
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
720
- Added IPv6 support, see :doc:`design document <design-2.3>` and
721
  :doc:`install-quick`
722
- Added a new watcher option (``--ignore-pause``)
723
- Added option to ignore offline node on instance start/stop
724
  (``--ignore-offline``)
725
- Allow overriding OS parameters with ``gnt-instance reinstall``
726
- Added ability to change node's secondary IP address using ``gnt-node
727
  modify``
728
- Implemented privilege separation for all daemons except
729
  ``ganeti-noded``, see ``configure`` options
730
- Complain if an instance's disk is marked faulty in ``gnt-cluster
731
  verify``
732
- Implemented job priorities (see ``ganeti(7)`` manpage)
733
- Ignore failures while shutting down instances during failover from
734
  offline node
735
- Exit daemon's bootstrap process only once daemon is ready
736
- Export more information via ``LUInstanceQuery``/remote API
737
- Improved documentation, QA and unittests
738
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
739
  restart if the file was created or changed
740
- Added LUXI protocol version sent with each request and response,
741
  allowing detection of server/client mismatches
742
- Moved the Python scripts among gnt-* and ganeti-* into modules
743
- Moved all code related to setting up SSH to an external script,
744
  ``setup-ssh``
745
- Infrastructure changes for node group support in future versions
746

    
747

    
748
Version 2.2.2
749
-------------
750

    
751
*(Released Fri, 19 Nov 2010)*
752

    
753
A few small bugs fixed, and some improvements to the build system:
754

    
755
- Fix documentation regarding conversion to drbd
756
- Fix validation of parameters in cluster modify (``gnt-cluster modify
757
  -B``)
758
- Fix error handling in node modify with multiple changes
759
- Allow remote imports without checked names
760

    
761

    
762
Version 2.2.1
763
-------------
764

    
765
*(Released Tue, 19 Oct 2010)*
766

    
767
- Disable SSL session ID cache in RPC client
768

    
769

    
770
Version 2.2.1 rc1
771
-----------------
772

    
773
*(Released Thu, 14 Oct 2010)*
774

    
775
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
776
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
777
  with GnuTLS
778
- Fix problems with interaction between Curl and Python's HTTP server,
779
  resulting in increased speed in many RPC calls
780
- Improve our release script to prevent breakage with older aclocal and
781
  Python 2.6
782

    
783

    
784
Version 2.2.1 rc0
785
-----------------
786

    
787
*(Released Thu, 7 Oct 2010)*
788

    
789
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
790
  value retrieved from master
791
- Added support for blacklisted or hidden OS definitions
792
- Added simple lock monitor (accessible via (``gnt-debug locks``)
793
- Added support for -mem-path in KVM hypervisor abstraction layer
794
- Allow overriding instance parameters in tool for inter-cluster
795
  instance moves (``tools/move-instance``)
796
- Improved opcode summaries (e.g. in ``gnt-job list``)
797
- Improve consistency of OS listing by sorting it
798
- Documentation updates
799

    
800

    
801
Version 2.2.0.1
802
---------------
803

    
804
*(Released Fri, 8 Oct 2010)*
805

    
806
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
807

    
808

    
809
Version 2.2.0
810
-------------
811

    
812
*(Released Mon, 4 Oct 2010)*
813

    
814
- Fixed regression in ``gnt-instance rename``
815

    
816

    
817
Version 2.2.0 rc2
818
-----------------
819

    
820
*(Released Wed, 22 Sep 2010)*
821

    
822
- Fixed OS_VARIANT variable for OS scripts
823
- Fixed cluster tag operations via RAPI
824
- Made ``setup-ssh`` exit with non-zero code if an error occurred
825
- Disabled RAPI CA checks in watcher
826

    
827

    
828
Version 2.2.0 rc1
829
-----------------
830

    
831
*(Released Mon, 23 Aug 2010)*
832

    
833
- Support DRBD versions of the format "a.b.c.d"
834
- Updated manpages
835
- Re-introduce support for usage from multiple threads in RAPI client
836
- Instance renames and modify via RAPI
837
- Work around race condition between processing and archival in job
838
  queue
839
- Mark opcodes following failed one as failed, too
840
- Job field ``lock_status`` was removed due to difficulties making it
841
  work with the changed job queue in Ganeti 2.2; a better way to monitor
842
  locks is expected for a later 2.2.x release
843
- Fixed dry-run behaviour with many commands
844
- Support ``ssh-agent`` again when adding nodes
845
- Many additional bugfixes
846

    
847

    
848
Version 2.2.0 rc0
849
-----------------
850

    
851
*(Released Fri, 30 Jul 2010)*
852

    
853
Important change: the internal RPC mechanism between Ganeti nodes has
854
changed from using a home-grown http library (based on the Python base
855
libraries) to use the PycURL library. This requires that PycURL is
856
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
857
against GnuTLS by default. cURL's support for GnuTLS had known issues
858
before cURL 7.21.0 and we recommend using the latest cURL release or
859
linking against OpenSSL. Most other distributions already link PycURL
860
and cURL against OpenSSL. The command::
861

    
862
  python -c 'import pycurl; print pycurl.version'
863

    
864
can be used to determine the libraries PycURL and cURL are linked
865
against.
866

    
867
Other significant changes:
868

    
869
- Rewrote much of the internals of the job queue, in order to achieve
870
  better parallelism; this decouples job query operations from the job
871
  processing, and it should allow much nicer behaviour of the master
872
  daemon under load, and it also has uncovered some long-standing bugs
873
  related to the job serialisation (now fixed)
874
- Added a default iallocator setting to the cluster parameters,
875
  eliminating the need to always pass nodes or an iallocator for
876
  operations that require selection of new node(s)
877
- Added experimental support for the LXC virtualization method
878
- Added support for OS parameters, which allows the installation of
879
  instances to pass parameter to OS scripts in order to customise the
880
  instance
881
- Added a hypervisor parameter controlling the migration type (live or
882
  non-live), since hypervisors have various levels of reliability; this
883
  has renamed the 'live' parameter to 'mode'
884
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
885
  logical volumes, meaning that cluster verify will ignore them and not
886
  flag their presence as errors
887
- The watcher will now reset the error count for failed instances after
888
  8 hours, thus allowing self-healing if the problem that caused the
889
  instances to be down/fail to start has cleared in the meantime
890
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
891
  check for, and warn, if the drbd module parameter ``usermode_helper``
892
  is not consistent with the cluster-wide setting; this is needed to
893
  make diagnose easier of failed drbd creations
894
- Started adding base IPv6 support, but this is not yet
895
  enabled/available for use
896
- Rename operations (cluster, instance) will now return the new name,
897
  which is especially useful if a short name was passed in
898
- Added support for instance migration in RAPI
899
- Added a tool to pre-configure nodes for the SSH setup, before joining
900
  them to the cluster; this will allow in the future a simplified model
901
  for node joining (but not yet fully enabled in 2.2); this needs the
902
  paramiko python library
903
- Fixed handling of name-resolving errors
904
- Fixed consistency of job results on the error path
905
- Fixed master-failover race condition when executed multiple times in
906
  sequence
907
- Fixed many bugs related to the job queue (mostly introduced during the
908
  2.2 development cycle, so not all are impacting 2.1)
909
- Fixed instance migration with missing disk symlinks
910
- Fixed handling of unknown jobs in ``gnt-job archive``
911
- And many other small fixes/improvements
912

    
913
Internal changes:
914

    
915
- Enhanced both the unittest and the QA coverage
916
- Switched the opcode validation to a generic model, and extended the
917
  validation to all opcode parameters
918
- Changed more parts of the code that write shell scripts to use the
919
  same class for this
920
- Switched the master daemon to use the asyncore library for the Luxi
921
  server endpoint
922

    
923

    
924
Version 2.2.0 beta 0
925
--------------------
926

    
927
*(Released Thu, 17 Jun 2010)*
928

    
929
- Added tool (``move-instance``) and infrastructure to move instances
930
  between separate clusters (see :doc:`separate documentation
931
  <move-instance>` and :doc:`design document <design-2.2>`)
932
- Added per-request RPC timeout
933
- RAPI now requires a Content-Type header for requests with a body (e.g.
934
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
935
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
936
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
937
  reachable
938
- Implemented initial support for running Ganeti daemons as separate
939
  users, see configure-time flags ``--with-user-prefix`` and
940
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
941
  time)
942
- Instances can be removed after export (``gnt-backup export
943
  --remove-instance``)
944
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
945
  key (instead of 1024 bit)
946
- Added new cluster configuration file for cluster domain secret
947
- Import/export now use SSL instead of SSH
948
- Added support for showing estimated time when exporting an instance,
949
  see the ``ganeti-os-interface(7)`` manpage and look for
950
  ``EXP_SIZE_FD``
951

    
952

    
953
Version 2.1.8
954
-------------
955

    
956
*(Released Tue, 16 Nov 2010)*
957

    
958
Some more bugfixes. Unless critical bugs occur, this will be the last
959
2.1 release:
960

    
961
- Fix case of MAC special-values
962
- Fix mac checker regex
963
- backend: Fix typo causing "out of range" error
964
- Add missing --units in gnt-instance list man page
965

    
966

    
967
Version 2.1.7
968
-------------
969

    
970
*(Released Tue, 24 Aug 2010)*
971

    
972
Bugfixes only:
973
  - Don't ignore secondary node silently on non-mirrored disk templates
974
    (issue 113)
975
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
976
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
977
  - Properly document the usb_mouse parameter
978
  - Fix path in ganeti-rapi(8) (issue 116)
979
  - Adjust error message when the ganeti user's .ssh directory is
980
    missing
981
  - Add same-node-check when changing the disk template to drbd
982

    
983

    
984
Version 2.1.6
985
-------------
986

    
987
*(Released Fri, 16 Jul 2010)*
988

    
989
Bugfixes only:
990
  - Add an option to only select some reboot types during qa/burnin.
991
    (on some hypervisors consequent reboots are not supported)
992
  - Fix infrequent race condition in master failover. Sometimes the old
993
    master ip address would be still detected as up for a short time
994
    after it was removed, causing failover to fail.
995
  - Decrease mlockall warnings when the ctypes module is missing. On
996
    Python 2.4 we support running even if no ctypes module is installed,
997
    but we were too verbose about this issue.
998
  - Fix building on old distributions, on which man doesn't have a
999
    --warnings option.
1000
  - Fix RAPI not to ignore the MAC address on instance creation
1001
  - Implement the old instance creation format in the RAPI client.
1002

    
1003

    
1004
Version 2.1.5
1005
-------------
1006

    
1007
*(Released Thu, 01 Jul 2010)*
1008

    
1009
A small bugfix release:
1010
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
1011
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
1012
    a non-existing option
1013
  - Fix instance create: the --force-variant option was ignored
1014
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
1015
  - Fix modify node storage with non-FQDN arguments
1016
  - Fix RAPI client to authenticate under Python 2.6 when used
1017
    for more than 5 requests needing authentication
1018
  - Fix gnt-instance modify -t (storage) giving a wrong error message
1019
    when converting a non-shutdown drbd instance to plain
1020

    
1021

    
1022
Version 2.1.4
1023
-------------
1024

    
1025
*(Released Fri, 18 Jun 2010)*
1026

    
1027
A small bugfix release:
1028

    
1029
  - Fix live migration of KVM instances started with older Ganeti
1030
    versions which had fewer hypervisor parameters
1031
  - Fix gnt-instance grow-disk on down instances
1032
  - Fix an error-reporting bug during instance migration
1033
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
1034
    silently ignoring broken ones
1035
  - Fix an RPC error reporting bug affecting, for example, RAPI client
1036
    users
1037
  - Fix bug triggered by different API version os-es on different nodes
1038
  - Fix a bug in instance startup with custom hvparams: OS level
1039
    parameters would fail to be applied.
1040
  - Fix the RAPI client under Python 2.6 (but more work is needed to
1041
    make it work completely well with OpenSSL)
1042
  - Fix handling of errors when resolving names from DNS
1043

    
1044

    
1045
Version 2.1.3
1046
-------------
1047

    
1048
*(Released Thu, 3 Jun 2010)*
1049

    
1050
A medium sized development cycle. Some new features, and some
1051
fixes/small improvements/cleanups.
1052

    
1053
Significant features
1054
~~~~~~~~~~~~~~~~~~~~
1055

    
1056
The node deamon now tries to mlock itself into memory, unless the
1057
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1058
its logs, and falls back to console logging. This allows emergency
1059
features such as ``gnt-node powercycle`` to work even in the event of a
1060
broken node disk (tested offlining the disk hosting the node's
1061
filesystem and dropping its memory caches; don't try this at home)
1062

    
1063
KVM: add vhost-net acceleration support. It can be tested with a new
1064
enough version of the kernel and of qemu-kvm.
1065

    
1066
KVM: Add instance chrooting feature. If you use privilege dropping for
1067
your VMs you can also now force them to chroot to an empty directory,
1068
before starting the emulated guest.
1069

    
1070
KVM: Add maximum migration bandwith and maximum downtime tweaking
1071
support (requires a new-enough version of qemu-kvm).
1072

    
1073
Cluster verify will now warn if the master node doesn't have the master
1074
ip configured on it.
1075

    
1076
Add a new (incompatible) instance creation request format to RAPI which
1077
supports all parameters (previously only a subset was supported, and it
1078
wasn't possible to extend the old format to accomodate all the new
1079
features. The old format is still supported, and a client can check for
1080
this feature, before using it, by checking for its presence in the
1081
``features`` RAPI resource.
1082

    
1083
Now with ancient latin support. Try it passing the ``--roman`` option to
1084
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1085
(requires the python-roman module to be installed, in order to work).
1086

    
1087
Other changes
1088
~~~~~~~~~~~~~
1089

    
1090
As usual many internal code refactorings, documentation updates, and
1091
such. Among others:
1092

    
1093
  - Lots of improvements and cleanups to the experimental Remote API
1094
    (RAPI) client library.
1095
  - A new unit test suite for the core daemon libraries.
1096
  - A fix to creating missing directories makes sure the umask is not
1097
    applied anymore. This enforces the same directory permissions
1098
    everywhere.
1099
  - Better handling terminating daemons with ctrl+c (used when running
1100
    them in debugging mode).
1101
  - Fix a race condition in live migrating a KVM instance, when stat()
1102
    on the old proc status file returned EINVAL, which is an unexpected
1103
    value.
1104
  - Fixed manpage checking with newer man and utf-8 charachters. But now
1105
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1106

    
1107

    
1108
Version 2.1.2.1
1109
---------------
1110

    
1111
*(Released Fri, 7 May 2010)*
1112

    
1113
Fix a bug which prevented untagged KVM instances from starting.
1114

    
1115

    
1116
Version 2.1.2
1117
-------------
1118

    
1119
*(Released Fri, 7 May 2010)*
1120

    
1121
Another release with a long development cycle, during which many
1122
different features were added.
1123

    
1124
Significant features
1125
~~~~~~~~~~~~~~~~~~~~
1126

    
1127
The KVM hypervisor now can run the individual instances as non-root, to
1128
reduce the impact of a VM being hijacked due to bugs in the
1129
hypervisor. It is possible to run all instances as a single (non-root)
1130
user, to manually specify a user for each instance, or to dynamically
1131
allocate a user out of a cluster-wide pool to each instance, with the
1132
guarantee that no two instances will run under the same user ID on any
1133
given node.
1134

    
1135
An experimental RAPI client library, that can be used standalone
1136
(without the other Ganeti libraries), is provided in the source tree as
1137
``lib/rapi/client.py``. Note this client might change its interface in
1138
the future, as we iterate on its capabilities.
1139

    
1140
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1141
replace the cluster's certificates and crypto keys. This might help in
1142
case they have been compromised, or have simply expired.
1143

    
1144
A new disk option for instance creation has been added that allows one
1145
to "adopt" currently existing logical volumes, with data
1146
preservation. This should allow easier migration to Ganeti from
1147
unmanaged (or managed via other software) instances.
1148

    
1149
Another disk improvement is the possibility to convert between redundant
1150
(DRBD) and plain (LVM) disk configuration for an instance. This should
1151
allow better scalability (starting with one node and growing the
1152
cluster, or shrinking a two-node cluster to one node).
1153

    
1154
A new feature that could help with automated node failovers has been
1155
implemented: if a node sees itself as offline (by querying the master
1156
candidates), it will try to shutdown (hard) all instances and any active
1157
DRBD devices. This reduces the risk of duplicate instances if an
1158
external script automatically failovers the instances on such nodes. To
1159
enable this, the cluster parameter ``maintain_node_health`` should be
1160
enabled; in the future this option (per the name) will enable other
1161
automatic maintenance features.
1162

    
1163
Instance export/import now will reuse the original instance
1164
specifications for all parameters; that means exporting an instance,
1165
deleting it and the importing it back should give an almost identical
1166
instance. Note that the default import behaviour has changed from
1167
before, where it created only one NIC; now it recreates the original
1168
number of NICs.
1169

    
1170
Cluster verify has added a few new checks: SSL certificates validity,
1171
/etc/hosts consistency across the cluster, etc.
1172

    
1173
Other changes
1174
~~~~~~~~~~~~~
1175

    
1176
As usual, many internal changes were done, documentation fixes,
1177
etc. Among others:
1178

    
1179
- Fixed cluster initialization with disabled cluster storage (regression
1180
  introduced in 2.1.1)
1181
- File-based storage supports growing the disks
1182
- Fixed behaviour of node role changes
1183
- Fixed cluster verify for some corner cases, plus a general rewrite of
1184
  cluster verify to allow future extension with more checks
1185
- Fixed log spamming by watcher and node daemon (regression introduced
1186
  in 2.1.1)
1187
- Fixed possible validation issues when changing the list of enabled
1188
  hypervisors
1189
- Fixed cleanup of /etc/hosts during node removal
1190
- Fixed RAPI response for invalid methods
1191
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1192
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1193
  from ide disks, etc.)
1194
- Allow OS changes without re-installation (to record a changed OS
1195
  outside of Ganeti, or to allow OS renames)
1196
- Allow instance creation without OS installation (useful for example if
1197
  the OS will be installed manually, or restored from a backup not in
1198
  Ganeti format)
1199
- Implemented option to make cluster ``copyfile`` use the replication
1200
  network
1201
- Added list of enabled hypervisors to ssconf (possibly useful for
1202
  external scripts)
1203
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1204
  1.2 clusters
1205
- A partial form of node re-IP is possible via node readd, which now
1206
  allows changed node primary IP
1207
- Command line utilities now show an informational message if the job is
1208
  waiting for a lock
1209
- The logs of the master daemon now show the PID/UID/GID of the
1210
  connected client
1211

    
1212

    
1213
Version 2.1.1
1214
-------------
1215

    
1216
*(Released Fri, 12 Mar 2010)*
1217

    
1218
During the 2.1.0 long release candidate cycle, a lot of improvements and
1219
changes have accumulated with were released later as 2.1.1.
1220

    
1221
Major changes
1222
~~~~~~~~~~~~~
1223

    
1224
The node evacuate command (``gnt-node evacuate``) was significantly
1225
rewritten, and as such the IAllocator protocol was changed - a new
1226
request type has been added. This unfortunate change during a stable
1227
series is designed to improve performance of node evacuations; on
1228
clusters with more than about five nodes and which are well-balanced,
1229
evacuation should proceed in parallel for all instances of the node
1230
being evacuated. As such, any existing IAllocator scripts need to be
1231
updated, otherwise the above command will fail due to the unknown
1232
request. The provided "dumb" allocator has not been updated; but the
1233
ganeti-htools package supports the new protocol since version 0.2.4.
1234

    
1235
Another important change is increased validation of node and instance
1236
names. This might create problems in special cases, if invalid host
1237
names are being used.
1238

    
1239
Also, a new layer of hypervisor parameters has been added, that sits at
1240
OS level between the cluster defaults and the instance ones. This allows
1241
customisation of virtualization parameters depending on the installed
1242
OS. For example instances with OS 'X' may have a different KVM kernel
1243
(or any other parameter) than the cluster defaults. This is intended to
1244
help managing a multiple OSes on the same cluster, without manual
1245
modification of each instance's parameters.
1246

    
1247
A tool for merging clusters, ``cluster-merge``, has been added in the
1248
tools sub-directory.
1249

    
1250
Bug fixes
1251
~~~~~~~~~
1252

    
1253
- Improved the int/float conversions that should make the code more
1254
  robust in face of errors from the node daemons
1255
- Fixed the remove node code in case of internal configuration errors
1256
- Fixed the node daemon behaviour in face of inconsistent queue
1257
  directory (e.g. read-only file-system where we can't open the files
1258
  read-write, etc.)
1259
- Fixed the behaviour of gnt-node modify for master candidate demotion;
1260
  now it either aborts cleanly or, if given the new "auto_promote"
1261
  parameter, will automatically promote other nodes as needed
1262
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
1263
  completely prevent Ganeti from working
1264
- Fixed bug for instance export when not all disks were successfully
1265
  exported
1266
- Fixed behaviour of node add when the new node is slow in starting up
1267
  the node daemon
1268
- Fixed handling of signals in the LUXI client, which should improve
1269
  behaviour of command-line scripts
1270
- Added checks for invalid node/instance names in the configuration (now
1271
  flagged during cluster verify)
1272
- Fixed watcher behaviour for disk activation errors
1273
- Fixed two potentially endless loops in http library, which led to the
1274
  RAPI daemon hanging and consuming 100% CPU in some cases
1275
- Fixed bug in RAPI daemon related to hashed passwords
1276
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
1277
  instances
1278
- Enhanced compatibility with non-Debian OSes, but not using absolute
1279
  path in some commands and allowing customisation of the ssh
1280
  configuration directory
1281
- Fixed possible future issue with new Python versions by abiding to the
1282
  proper use of ``__slots__`` attribute on classes
1283
- Added checks that should prevent directory traversal attacks
1284
- Many documentation fixes based on feedback from users
1285

    
1286
New features
1287
~~~~~~~~~~~~
1288

    
1289
- Added an "early_release" more for instance replace disks and node
1290
  evacuate, where we release locks earlier and thus allow higher
1291
  parallelism within the cluster
1292
- Added watcher hooks, intended to allow the watcher to restart other
1293
  daemons (e.g. from the ganeti-nbma project), but they can be used of
1294
  course for any other purpose
1295
- Added a compile-time disable for DRBD barriers, to increase
1296
  performance if the administrator trusts the power supply or the
1297
  storage system to not lose writes
1298
- Added the option of using syslog for logging instead of, or in
1299
  addition to, Ganeti's own log files
1300
- Removed boot restriction for paravirtual NICs for KVM, recent versions
1301
  can indeed boot from a paravirtual NIC
1302
- Added a generic debug level for many operations; while this is not
1303
  used widely yet, it allows one to pass the debug value all the way to
1304
  the OS scripts
1305
- Enhanced the hooks environment for instance moves (failovers,
1306
  migrations) where the primary/secondary nodes changed during the
1307
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1308
- Enhanced data validations for many user-supplied values; one important
1309
  item is the restrictions imposed on instance and node names, which
1310
  might reject some (invalid) host names
1311
- Add a configure-time option to disable file-based storage, if it's not
1312
  needed; this allows greater security separation between the master
1313
  node and the other nodes from the point of view of the inter-node RPC
1314
  protocol
1315
- Added user notification in interactive tools if job is waiting in the
1316
  job queue or trying to acquire locks
1317
- Added log messages when a job is waiting for locks
1318
- Added filtering by node tags in instance operations which admit
1319
  multiple instances (start, stop, reboot, reinstall)
1320
- Added a new tool for cluster mergers, ``cluster-merge``
1321
- Parameters from command line which are of the form ``a=b,c=d`` can now
1322
  use backslash escapes to pass in values which contain commas,
1323
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1324
  ``b,c``
1325
- For KVM, the instance name is the first parameter passed to KVM, so
1326
  that it's more visible in the process list
1327

    
1328

    
1329
Version 2.1.0
1330
-------------
1331

    
1332
*(Released Tue, 2 Mar 2010)*
1333

    
1334
Ganeti 2.1 brings many improvements with it. Major changes:
1335

    
1336
- Added infrastructure to ease automated disk repairs
1337
- Added new daemon to export configuration data in a cheaper way than
1338
  using the remote API
1339
- Instance NICs can now be routed instead of being associated with a
1340
  networking bridge
1341
- Improved job locking logic to reduce impact of jobs acquiring multiple
1342
  locks waiting for other long-running jobs
1343

    
1344
In-depth implementation details can be found in the Ganeti 2.1 design
1345
document.
1346

    
1347
Details
1348
~~~~~~~
1349

    
1350
- Added chroot hypervisor
1351
- Added more options to xen-hvm hypervisor (``kernel_path`` and
1352
  ``device_model``)
1353
- Added more options to xen-pvm hypervisor (``use_bootloader``,
1354
  ``bootloader_path`` and ``bootloader_args``)
1355
- Added the ``use_localtime`` option for the xen-hvm and kvm
1356
  hypervisors, and the default value for this has changed to false (in
1357
  2.0 xen-hvm always enabled it)
1358
- Added luxi call to submit multiple jobs in one go
1359
- Added cluster initialization option to not modify ``/etc/hosts``
1360
  file on nodes
1361
- Added network interface parameters
1362
- Added dry run mode to some LUs
1363
- Added RAPI resources:
1364

    
1365
  - ``/2/instances/[instance_name]/info``
1366
  - ``/2/instances/[instance_name]/replace-disks``
1367
  - ``/2/nodes/[node_name]/evacuate``
1368
  - ``/2/nodes/[node_name]/migrate``
1369
  - ``/2/nodes/[node_name]/role``
1370
  - ``/2/nodes/[node_name]/storage``
1371
  - ``/2/nodes/[node_name]/storage/modify``
1372
  - ``/2/nodes/[node_name]/storage/repair``
1373

    
1374
- Added OpCodes to evacuate or migrate all instances on a node
1375
- Added new command to list storage elements on nodes (``gnt-node
1376
  list-storage``) and modify them (``gnt-node modify-storage``)
1377
- Added new ssconf files with master candidate IP address
1378
  (``ssconf_master_candidates_ips``), node primary IP address
1379
  (``ssconf_node_primary_ips``) and node secondary IP address
1380
  (``ssconf_node_secondary_ips``)
1381
- Added ``ganeti-confd`` and a client library to query the Ganeti
1382
  configuration via UDP
1383
- Added ability to run hooks after cluster initialization and before
1384
  cluster destruction
1385
- Added automatic mode for disk replace (``gnt-instance replace-disks
1386
  --auto``)
1387
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
1388
  after catastrophic data-loss
1389
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
1390
  groups
1391
- Added ``gnt-instance move`` command to move instances
1392
- Added ``gnt-cluster watcher`` command to control watcher
1393
- Added ``gnt-node powercycle`` command to powercycle nodes
1394
- Added new job status field ``lock_status``
1395
- Added parseable error codes to cluster verification (``gnt-cluster
1396
  verify --error-codes``) and made output less verbose (use
1397
  ``--verbose`` to restore previous behaviour)
1398
- Added UUIDs to the main config entities (cluster, nodes, instances)
1399
- Added support for OS variants
1400
- Added support for hashed passwords in the Ganeti remote API users file
1401
  (``rapi_users``)
1402
- Added option to specify maximum timeout on instance shutdown
1403
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
1404
- Added new helper script to start and stop Ganeti daemons
1405
  (``daemon-util``), with the intent to reduce the work necessary to
1406
  adjust Ganeti for non-Debian distributions and to start/stop daemons
1407
  from one place
1408
- Added more unittests
1409
- Fixed critical bug in ganeti-masterd startup
1410
- Removed the configure-time ``kvm-migration-port`` parameter, this is
1411
  now customisable at the cluster level for both the KVM and Xen
1412
  hypervisors using the new ``migration_port`` parameter
1413
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
1414
  reinstalling an instance
1415
- Allowed ``@`` in tag names
1416
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
1417
- Many documentation updates
1418
- Distribute hypervisor files on ``gnt-cluster redist-conf``
1419
- ``gnt-instance reinstall`` can now reinstall multiple instances
1420
- Updated many command line parameters
1421
- Introduced new OS API version 15
1422
- No longer support a default hypervisor
1423
- Treat virtual LVs as inexistent
1424
- Improved job locking logic to reduce lock contention
1425
- Match instance and node names case insensitively
1426
- Reimplemented bash completion script to be more complete
1427
- Improved burnin
1428

    
1429

    
1430
Version 2.0.6
1431
-------------
1432

    
1433
*(Released Thu, 4 Feb 2010)*
1434

    
1435
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
1436
- Fix a string formatting bug
1437
- Improve safety of the code in some error paths
1438
- Improve data validation in the master of values returned from nodes
1439

    
1440

    
1441
Version 2.0.5
1442
-------------
1443

    
1444
*(Released Thu, 17 Dec 2009)*
1445

    
1446
- Fix security issue due to missing validation of iallocator names; this
1447
  allows local and remote execution of arbitrary executables
1448
- Fix failure of gnt-node list during instance removal
1449
- Ship the RAPI documentation in the archive
1450

    
1451

    
1452
Version 2.0.4
1453
-------------
1454

    
1455
*(Released Wed, 30 Sep 2009)*
1456

    
1457
- Fixed many wrong messages
1458
- Fixed a few bugs related to the locking library
1459
- Fixed MAC checking at instance creation time
1460
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
1461
- Fixed a few issues related to signal handling in both daemons and
1462
  scripts
1463
- Fixed the example startup script provided
1464
- Fixed insserv dependencies in the example startup script (patch from
1465
  Debian)
1466
- Fixed handling of drained nodes in the iallocator framework
1467
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
1468
  #528618)
1469
- Fixed error related to invalid job IDs in job polling
1470
- Fixed job/opcode persistence on unclean master shutdown
1471
- Fixed handling of partial job processing after unclean master
1472
  shutdown
1473
- Fixed error reporting from LUs, previously all errors were converted
1474
  into execution errors
1475
- Fixed error reporting from burnin
1476
- Decreased significantly the memory usage of the job queue
1477
- Optimised slightly multi-job submission
1478
- Optimised slightly opcode loading
1479
- Backported the multi-job submit framework from the development
1480
  branch; multi-instance start and stop should be faster
1481
- Added script to clean archived jobs after 21 days; this will reduce
1482
  the size of the queue directory
1483
- Added some extra checks in disk size tracking
1484
- Added an example ethers hook script
1485
- Added a cluster parameter that prevents Ganeti from modifying of
1486
  /etc/hosts
1487
- Added more node information to RAPI responses
1488
- Added a ``gnt-job watch`` command that allows following the ouput of a
1489
  job
1490
- Added a bind-address option to ganeti-rapi
1491
- Added more checks to the configuration verify
1492
- Enhanced the burnin script such that some operations can be retried
1493
  automatically
1494
- Converted instance reinstall to multi-instance model
1495

    
1496

    
1497
Version 2.0.3
1498
-------------
1499

    
1500
*(Released Fri, 7 Aug 2009)*
1501

    
1502
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
1503
  to allow using the pre-2.0.2 behaviour in activation, if any existing
1504
  instances have mismatched disk sizes in the configuration
1505
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
1506
  any configuration mismatches for disk sizes
1507
- Added ``gnt-master cluste-failover --no-voting`` to allow master
1508
  failover to work on two-node clusters
1509
- Fixed the ``--net`` option of ``gnt-backup import``, which was
1510
  unusable
1511
- Fixed detection of OS script errors in ``gnt-backup export``
1512
- Fixed exit code of ``gnt-backup export``
1513

    
1514

    
1515
Version 2.0.2
1516
-------------
1517

    
1518
*(Released Fri, 17 Jul 2009)*
1519

    
1520
- Added experimental support for stripped logical volumes; this should
1521
  enhance performance but comes with a higher complexity in the block
1522
  device handling; stripping is only enabled when passing
1523
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
1524
  affected even in the non-stripped mode
1525
- Improved resiliency against transient failures at the end of DRBD
1526
  resyncs, and in general of DRBD resync checks
1527
- Fixed a couple of issues with exports and snapshot errors
1528
- Fixed a couple of issues in instance listing
1529
- Added display of the disk size in ``gnt-instance info``
1530
- Fixed checking for valid OSes in instance creation
1531
- Fixed handling of the "vcpus" parameter in instance listing and in
1532
  general of invalid parameters
1533
- Fixed http server library, and thus RAPI, to handle invalid
1534
  username/password combinations correctly; this means that now they
1535
  report unauthorized for queries too, not only for modifications,
1536
  allowing earlier detect of configuration problems
1537
- Added a new "role" node list field, equivalent to the master/master
1538
  candidate/drained/offline flags combinations
1539
- Fixed cluster modify and changes of candidate pool size
1540
- Fixed cluster verify error messages for wrong files on regular nodes
1541
- Fixed a couple of issues with node demotion from master candidate role
1542
- Fixed node readd issues
1543
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
1544
- Added a new ``--no-voting`` option for masterfailover to fix failover
1545
  on two-nodes clusters when the former master node is unreachable
1546
- Added instance reinstall over RAPI
1547

    
1548

    
1549
Version 2.0.1
1550
-------------
1551

    
1552
*(Released Tue, 16 Jun 2009)*
1553

    
1554
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
1555
  allow re-adding the start in single-user option (regression from 1.2)
1556
- the watcher writes the instance status to a file, to allow monitoring
1557
  to report the instance status (from the master) based on cached
1558
  results of the watcher's queries; while this can get stale if the
1559
  watcher is being locked due to other work on the cluster, this is
1560
  still an improvement
1561
- the watcher now also restarts the node daemon and the rapi daemon if
1562
  they died
1563
- fixed the watcher to handle full and drained queue cases
1564
- hooks export more instance data in the environment, which helps if
1565
  hook scripts need to take action based on the instance's properties
1566
  (no longer need to query back into ganeti)
1567
- instance failovers when the instance is stopped do not check for free
1568
  RAM, so that failing over a stopped instance is possible in low memory
1569
  situations
1570
- rapi uses queries for tags instead of jobs (for less job traffic), and
1571
  for cluster tags it won't talk to masterd at all but read them from
1572
  ssconf
1573
- a couple of error handling fixes in RAPI
1574
- drbd handling: improved the error handling of inconsistent disks after
1575
  resync to reduce the frequency of "there are some degraded disks for
1576
  this instance" messages
1577
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
1578
  error handling path called a wrong function name)
1579

    
1580

    
1581
Version 2.0.0 final
1582
-------------------
1583

    
1584
*(Released Wed, 27 May 2009)*
1585

    
1586
- no changes from rc5
1587

    
1588

    
1589
Version 2.0 release candidate 5
1590
-------------------------------
1591

    
1592
*(Released Wed, 20 May 2009)*
1593

    
1594
- fix a couple of bugs (validation, argument checks)
1595
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
1596
- some small improvements to RAPI and IAllocator
1597
- make watcher automatically start the master daemon if down
1598

    
1599

    
1600
Version 2.0 release candidate 4
1601
-------------------------------
1602

    
1603
*(Released Mon, 27 Apr 2009)*
1604

    
1605
- change the OS list to not require locks; this helps with big clusters
1606
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
1607
  volume group is broken
1608
- ``gnt-instance info``, without any arguments, doesn't run for all
1609
  instances anymore; either pass ``--all`` or pass the desired
1610
  instances; this helps against mistakes on big clusters where listing
1611
  the information for all instances takes a long time
1612
- miscellaneous doc and man pages fixes
1613

    
1614

    
1615
Version 2.0 release candidate 3
1616
-------------------------------
1617

    
1618
*(Released Wed, 8 Apr 2009)*
1619

    
1620
- Change the internal locking model of some ``gnt-node`` commands, in
1621
  order to reduce contention (and blocking of master daemon) when
1622
  batching many creation/reinstall jobs
1623
- Fixes to Xen soft reboot
1624
- No longer build documentation at build time, instead distribute it in
1625
  the archive, in order to reduce the need for the whole docbook/rst
1626
  toolchains
1627

    
1628

    
1629
Version 2.0 release candidate 2
1630
-------------------------------
1631

    
1632
*(Released Fri, 27 Mar 2009)*
1633

    
1634
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
1635
- Fix watcher startup sequence, improves the behaviour of busy clusters
1636
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
1637
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
1638
  bind address and other places
1639
- Some documentation fixes and updates
1640

    
1641

    
1642
Version 2.0 release candidate 1
1643
-------------------------------
1644

    
1645
*(Released Mon, 2 Mar 2009)*
1646

    
1647
- More documentation updates, now all docs should be more-or-less
1648
  up-to-date
1649
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
1650
  etc.)
1651
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
1652
  and KVM)
1653
- Fix an issue related to $libdir/run/ganeti and cluster creation
1654

    
1655

    
1656
Version 2.0 beta 2
1657
------------------
1658

    
1659
*(Released Thu, 19 Feb 2009)*
1660

    
1661
- Xen PVM and KVM have switched the default value for the instance root
1662
  disk to the first partition on the first drive, instead of the whole
1663
  drive; this means that the OS installation scripts must be changed
1664
  accordingly
1665
- Man pages have been updated
1666
- RAPI has been switched by default to HTTPS, and the exported functions
1667
  should all work correctly
1668
- RAPI v1 has been removed
1669
- Many improvements to the KVM hypervisor
1670
- Block device errors are now better reported
1671
- Many other bugfixes and small improvements
1672

    
1673

    
1674
Version 2.0 beta 1
1675
------------------
1676

    
1677
*(Released Mon, 26 Jan 2009)*
1678

    
1679
- Version 2 is a general rewrite of the code and therefore the
1680
  differences are too many to list, see the design document for 2.0 in
1681
  the ``doc/`` subdirectory for more details
1682
- In this beta version there is not yet a migration path from 1.2 (there
1683
  will be one in the final 2.0 release)
1684
- A few significant changes are:
1685

    
1686
  - all commands are executed by a daemon (``ganeti-masterd``) and the
1687
    various ``gnt-*`` commands are just front-ends to it
1688
  - all the commands are entered into, and executed from a job queue,
1689
    see the ``gnt-job(8)`` manpage
1690
  - the RAPI daemon supports read-write operations, secured by basic
1691
    HTTP authentication on top of HTTPS
1692
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
1693
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
1694
    to migrate to DRBD 8 first while still running Ganeti 1.2)
1695
  - DRBD devices are using statically allocated minor numbers, which
1696
    will be assigned to existing instances during the migration process
1697
  - there is support for both Xen PVM and Xen HVM instances running on
1698
    the same cluster
1699
  - KVM virtualization is supported too
1700
  - file-based storage has been implemented, which means that it is
1701
    possible to run the cluster without LVM and DRBD storage, for
1702
    example using a shared filesystem exported from shared storage (and
1703
    still have live migration)
1704

    
1705

    
1706
Version 1.2.7
1707
-------------
1708

    
1709
*(Released Tue, 13 Jan 2009)*
1710

    
1711
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
1712
- Reuse the old instance mac address by default on instance import, if
1713
  the instance name is the same.
1714
- Handle situations in which the node info rpc returns incomplete
1715
  results (issue 46)
1716
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
1717
- Improved version of batcher:
1718

    
1719
  - state file support
1720
  - instance mac address support
1721
  - support for HVM clusters/instances
1722

    
1723
- Add an option to show the number of cpu sockets and nodes in
1724
  ``gnt-node list``
1725
- Support OSes that handle more than one version of the OS api (but do
1726
  not change the current API in any other way)
1727
- Fix ``gnt-node migrate``
1728
- ``gnt-debug`` man page
1729
- Fixes various more typos and small issues
1730
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
1731

    
1732

    
1733
Version 1.2.6
1734
-------------
1735

    
1736
*(Released Wed, 24 Sep 2008)*
1737

    
1738
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
1739
  type of disk exported to fully virtualized instances.
1740
- provide access to the serial console of HVM instances
1741
- instance auto_balance flag, set by default. If turned off it will
1742
  avoid warnings on cluster verify if there is not enough memory to fail
1743
  over an instance. in the future it will prevent automatically failing
1744
  it over when we will support that.
1745
- batcher tool for instance creation, see ``tools/README.batcher``
1746
- ``gnt-instance reinstall --select-os`` to interactively select a new
1747
  operating system when reinstalling an instance.
1748
- when changing the memory amount on instance modify a check has been
1749
  added that the instance will be able to start. also warnings are
1750
  emitted if the instance will not be able to fail over, if auto_balance
1751
  is true.
1752
- documentation fixes
1753
- sync fields between ``gnt-instance list/modify/add/import``
1754
- fix a race condition in drbd when the sync speed was set after giving
1755
  the device a remote peer.
1756

    
1757

    
1758
Version 1.2.5
1759
-------------
1760

    
1761
*(Released Tue, 22 Jul 2008)*
1762

    
1763
- note: the allowed size and number of tags per object were reduced
1764
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
1765
- fixed twisted 8.x compatibility
1766
- fixed ``gnt-instance replace-disks`` with iallocator
1767
- add TCP keepalives on twisted connections to detect restarted nodes
1768
- disk increase support, see ``gnt-instance grow-disk``
1769
- implement bulk node/instance query for RAPI
1770
- add tags in node/instance listing (optional)
1771
- experimental migration (and live migration) support, read the man page
1772
  for ``gnt-instance migrate``
1773
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
1774
  has some small improvements in handling its state file
1775

    
1776

    
1777
Version 1.2.4
1778
-------------
1779

    
1780
*(Released Fri, 13 Jun 2008)*
1781

    
1782
- Experimental readonly, REST-based remote API implementation;
1783
  automatically started on master node, TCP port 5080, if enabled by
1784
  ``--enable-rapi`` parameter to configure script.
1785
- Instance allocator support. Add and import instance accept a
1786
  ``--iallocator`` parameter, and call that instance allocator to decide
1787
  which node to use for the instance. The iallocator document describes
1788
  what's expected from an allocator script.
1789
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
1790
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
1791
  node is lost there is still enough memory to fail over the instances
1792
  that reside on it.
1793
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
1794
  ``gnt-cluster verify``, to check for site-specific compliance. All the
1795
  hooks will run, and their output, if any, will be displayed. Any
1796
  failing hook will make the verification return an error value.
1797
- ``gnt-cluster verify`` now checks that its peers are reachable on the
1798
  primary and secondary interfaces
1799
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
1800
  that is still declared as part of the cluster and has failed.
1801
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
1802
  specifying output fields, that just adds the chosen fields to the
1803
  default ones.
1804
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
1805
  export from the filesystem.
1806
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
1807
  have been added. Using them you can enable/disable acpi and pae
1808
  support, and specify a path for a cd image to be exported to the
1809
  instance. These parameters as the name suggest only work on HVM
1810
  clusters.
1811
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
1812
  PAE support will be set to the previously hardcoded values, but the
1813
  (previously hardcoded) path to the CDROM ISO image will be unset and
1814
  if required, needs to be set manually with ``gnt-instance modify``
1815
  after the upgrade.
1816
- The address to which an instance's VNC console is bound is now
1817
  selectable per-instance, rather than being cluster wide. Of course
1818
  this only applies to instances controlled via VNC, so currently just
1819
  applies to HVM clusters.
1820

    
1821

    
1822
Version 1.2.3
1823
-------------
1824

    
1825
*(Released Mon, 18 Feb 2008)*
1826

    
1827
- more tweaks to the disk activation code (especially helpful for DRBD)
1828
- change the default ``gnt-instance list`` output format, now there is
1829
  one combined status field (see the manpage for the exact values this
1830
  field will have)
1831
- some more fixes for the mac export to hooks change
1832
- make Ganeti not break with DRBD 8.2.x (which changed the version
1833
  format in ``/proc/drbd``) (issue 24)
1834
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
1835
  template, allowing migration from DRBD0.7+MD to DRBD8
1836

    
1837

    
1838
Version 1.2.2
1839
-------------
1840

    
1841
*(Released Wed, 30 Jan 2008)*
1842

    
1843
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
1844
  support (issue 23)
1845
- add command aliases infrastructure and a few aliases
1846
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
1847
  man pages and the ``--help`` option of ``gnt-node
1848
  list``/``gnt-instance list``
1849
- fix ``gnt-backup list`` with down nodes (issue 21)
1850
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
1851
- fix the dist archive and add a check for including svn/git files in
1852
  the future
1853
- some developer-related changes: improve the burnin and the QA suite,
1854
  add an upload script for testing during development
1855

    
1856

    
1857
Version 1.2.1
1858
-------------
1859

    
1860
*(Released Wed, 16 Jan 2008)*
1861

    
1862
- experimental HVM support, read the install document, section
1863
  "Initializing the cluster"
1864
- allow for the PVM hypervisor per-instance kernel and initrd paths
1865
- add a new command ``gnt-cluster verify-disks`` which uses a new
1866
  algorithm to improve the reconnection of the DRBD pairs if the device
1867
  on the secondary node has gone away
1868
- make logical volume code auto-activate LVs at disk activation time
1869
- slightly improve the speed of activating disks
1870
- allow specification of the MAC address at instance creation time, and
1871
  changing it later via ``gnt-instance modify``
1872
- fix handling of external commands that generate lots of output on
1873
  stderr
1874
- update documentation with regard to minimum version of DRBD8 supported
1875

    
1876

    
1877
Version 1.2.0
1878
-------------
1879

    
1880
*(Released Tue, 4 Dec 2007)*
1881

    
1882
- Log the ``xm create`` output to the node daemon log on failure (to
1883
  help diagnosing the error)
1884
- In debug mode, log all external commands output if failed to the logs
1885
- Change parsing of lvm commands to ignore stderr
1886

    
1887

    
1888
Version 1.2b3
1889
-------------
1890

    
1891
*(Released Wed, 28 Nov 2007)*
1892

    
1893
- Another round of updates to the DRBD 8 code to deal with more failures
1894
  in the replace secondary node operation
1895
- Some more logging of failures in disk operations (lvm, drbd)
1896
- A few documentation updates
1897
- QA updates
1898

    
1899

    
1900
Version 1.2b2
1901
-------------
1902

    
1903
*(Released Tue, 13 Nov 2007)*
1904

    
1905
- Change configuration file format from Python's Pickle to JSON.
1906
  Upgrading is possible using the cfgupgrade utility.
1907
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
1908
  faster replace disks and is more stable (DRBD 8 has many improvements
1909
  compared to DRBD 0.7)
1910
- Added command line tags support (see man pages for ``gnt-instance``,
1911
  ``gnt-node``, ``gnt-cluster``)
1912
- Added instance rename support
1913
- Added multi-instance startup/shutdown
1914
- Added cluster rename support
1915
- Added ``gnt-node evacuate`` to simplify some node operations
1916
- Added instance reboot operation that can speedup reboot as compared to
1917
  stop and start
1918
- Soften the requirement that hostnames are in FQDN format
1919
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
1920
  reboots
1921
- Removed dependency on debian's patched fping that uses the
1922
  non-standard ``-S`` option
1923
- Now the OS definitions are searched for in multiple, configurable
1924
  paths (easier for distros to package)
1925
- Some changes to the hooks infrastructure (especially the new
1926
  post-configuration update hook)
1927
- Other small bugfixes
1928

    
1929
.. vim: set textwidth=72 syntax=rst :
1930
.. Local Variables:
1931
.. mode: rst
1932
.. fill-column: 72
1933
.. End: