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1
News
2
====
3

    
4
Version 2.5.0 beta3
5
-------------------
6

    
7
*(Released Wed, 31 Aug 2011)*
8

    
9
Incompatible/important changes and bugfixes
10
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11

    
12
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
13
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
14
  to match the underlying LUXI interface.
15
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
16
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
17
  not maintain backwards-compatibility as the underlying operation
18
  changed in an incompatible way. The RAPI client can talk to old
19
  servers, but it needs to be told so as the return value changed.
20
- When creating file-based instances via RAPI, the ``file_driver``
21
  parameter no longer defaults to ``loop`` and must be specified.
22
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
23
  ``link`` instead.
24
- Support for the undocumented and deprecated RAPI instance creation
25
  request format version 0 has been dropped. Use version 1, supported
26
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
27
- Pyparsing 1.4.6 or above is required, see :doc:`installation
28
  documentation <install>`.
29
- The "cluster-verify" hooks are now executed per group by the
30
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
31
  if you just run ``gnt-cluster verify``, which generates one opcode per
32
  group.
33
- The environment as passed to the OS scripts is cleared, and thus no
34
  environment variables defined in the node daemon's environment will be
35
  inherited by the scripts.
36
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
37
  deprecated.
38
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
39
  support operations involving multiple node groups.
40
- Offline nodes are ignored when failing over an instance.
41

    
42
New features
43
~~~~~~~~~~~~
44

    
45
- The ganeti-htools project has been merged into the ganeti-core source
46
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
47
- Implemented support for :doc:`shared storage <design-shared-storage>`.
48
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
49
  GPT-style partition tables (requires `parted
50
  <http://www.gnu.org/s/parted/>`_).
51
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
52
- Allowed adding tags on instance creation.
53
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
54
- Allow instances to be started in a paused state, enabling the user to
55
  see the complete console output on boot using the console.
56
- Added new hypervisor flag to control default reboot behaviour
57
  (``reboot_behavior``).
58
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
59
- Improved out-of-band management support:
60

    
61
  - Added ``gnt-node health`` command reporting the health status of
62
    nodes.
63
  - Added ``gnt-node power`` command to manage power status of nodes.
64
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
65

    
66
- Instance migration can fall back to failover if instance is not
67
  running.
68
- Filters can be used when listing nodes, instances, groups and locks;
69
  see *ganeti(7)* manpage.
70
- Added post-execution status as variables to :doc:`hooks <hooks>`
71
  environment.
72
- Instance tags are exported/imported together with the instance.
73
- When given an explicit job ID, ``gnt-job info`` will work for archived
74
  jobs.
75
- Jobs can define dependencies on other jobs (not yet supported via
76
  RAPI or command line, but used by internal commands and usable via
77
  LUXI).
78

    
79
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
80
    dependencies.
81

    
82
- Instance failover is now available as a RAPI resource
83
  (``/2/instances/[instance_name]/failover``).
84
- ``gnt-instance info`` defaults to static information if primary node
85
  is offline.
86
- Opcodes have a new ``comment`` attribute.
87
- Added basic SPICE support to KVM hypervisor.
88
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
89

    
90
Node group improvements
91
~~~~~~~~~~~~~~~~~~~~~~~
92

    
93
- ``gnt-cluster verify`` has been modified to check groups separately,
94
  thereby improving performance.
95
- Node group support has been added to ``gnt-cluster verify-disks``,
96
  which now operates per node group.
97
- Watcher has been changed to work better with node groups.
98

    
99
  - One process and state file per node group.
100
  - Slow watcher in one group doesn't block other group's watcher.
101

    
102
- Added new command, ``gnt-group evacuate``, to move all instances in a
103
  node group to other groups.
104
- Added ``gnt-instance change-group`` to move an instance to another
105
  node group.
106
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
107
  per-group operations.
108
- Node groups can be tagged.
109
- Some operations switch from an exclusive to a shared lock as soon as
110
  possible.
111
- Instance's primary and secondary nodes' groups are now available as
112
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
113
  and ``snodes.group.uuid``).
114

    
115
Misc
116
~~~~
117

    
118
- Numerous updates to documentation and manpages.
119

    
120
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
121
    descriptions.
122

    
123
- A lockset's internal lock is now also visible in lock monitor.
124
- Log messages from job queue workers now contain information about the
125
  opcode they're processing.
126
- ``gnt-instance console`` no longer requires the instance lock.
127
- A short delay when waiting for job changes reduces the number of LUXI
128
  requests significantly.
129
- DRBD metadata volumes are overwritten with zeros during disk creation.
130

    
131

    
132
Version 2.5.0 beta2
133
-------------------
134

    
135
*(Released Mon, 22 Aug 2011)*
136

    
137
This was the second beta release of the 2.5 series.
138

    
139

    
140
Version 2.5.0 beta1
141
-------------------
142

    
143
*(Released Fri, 12 Aug 2011)*
144

    
145
This was the first beta release of the 2.5 series.
146

    
147

    
148
Version 2.4.4
149
-------------
150

    
151
*(Released Tue, 23 Aug 2011)*
152

    
153
Small bug-fixes:
154

    
155
- Fixed documentation for importing with ``--src-dir`` option
156
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
157
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
158

    
159

    
160
Version 2.4.3
161
-------------
162

    
163
*(Released Fri, 5 Aug 2011)*
164

    
165
Many bug-fixes and a few small features:
166

    
167
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
168
  issues when you tried to add an instance with two MAC addresses in one
169
  request
170
- KVM: fixed per-instance stored UID value
171
- KVM: configure bridged NICs at migration start
172
- KVM: Fix a bug where instance will not start with never KVM versions
173
  (>= 0.14)
174
- Added OS search path to ``gnt-cluster info``
175
- Fixed an issue with ``file_storage_dir`` where you were forced to
176
  provide an absolute path, but the documentation states it is a
177
  relative path, the documentation was right
178
- Added a new parameter to instance stop/start called ``--no-remember``
179
  that will make the state change to not be remembered
180
- Implemented ``no_remember`` at RAPI level
181
- Improved the documentation
182
- Node evacuation: don't call IAllocator if node is already empty
183
- Fixed bug in DRBD8 replace disks on current nodes
184
- Fixed bug in recreate-disks for DRBD instances
185
- Moved assertion checking locks in ``gnt-instance replace-disks``
186
  causing it to abort with not owning the right locks for some situation
187
- Job queue: Fixed potential race condition when cancelling queued jobs
188
- Fixed off-by-one bug in job serial generation
189
- ``gnt-node volumes``: Fix instance names
190
- Fixed aliases in bash completion
191
- Fixed a bug in reopening log files after being sent a SIGHUP
192
- Added a flag to burnin to allow specifying VCPU count
193
- Bugfixes to non-root Ganeti configuration
194

    
195

    
196
Version 2.4.2
197
-------------
198

    
199
*(Released Thu, 12 May 2011)*
200

    
201
Many bug-fixes and a few new small features:
202

    
203
- Fixed a bug related to log opening failures
204
- Fixed a bug in instance listing with orphan instances
205
- Fixed a bug which prevented resetting the cluster-level node parameter
206
  ``oob_program`` to the default
207
- Many fixes related to the ``cluster-merge`` tool
208
- Fixed a race condition in the lock monitor, which caused failures
209
  during (at least) creation of many instances in parallel
210
- Improved output for gnt-job info
211
- Removed the quiet flag on some ssh calls which prevented debugging
212
  failures
213
- Improved the N+1 failure messages in cluster verify by actually
214
  showing the memory values (needed and available)
215
- Increased lock attempt timeouts so that when executing long operations
216
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
217
  too early and thus prevent the use of the 'fair' mechanism
218
- Changed instance query data (``gnt-instance info``) to not acquire
219
  locks unless needed, thus allowing its use on locked instance if only
220
  static information is asked for
221
- Improved behaviour with filesystems that do not support rename on an
222
  opened file
223
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
224
  kept locks on all nodes during the wipe, which is unneeded
225
- Fixed ``gnt-watcher`` handling of errors during hooks execution
226
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
227
  10GiB) which caused the wipe to fail right at the end in some cases
228
- Fixed master IP activation when doing master failover with no-voting
229
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
230
  the master node itself
231
- Fixed potential data-loss in under disk full conditions, where Ganeti
232
  wouldn't check correctly the return code and would consider
233
  partially-written files 'correct'
234
- Fixed bug related to multiple VGs and DRBD disk replacing
235
- Added new disk parameter ``metavg`` that allows placement of the meta
236
  device for DRBD in a different volume group
237
- Fixed error handling in the node daemon when the system libc doesn't
238
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
239
- Fixed lock release during replace-disks, which kept cluster-wide locks
240
  when doing disk replaces with an iallocator script
241
- Added check for missing bridges in cluster verify
242
- Handle EPIPE errors while writing to the terminal better, so that
243
  piping the output to e.g. ``less`` doesn't cause a backtrace
244
- Fixed rare case where a ^C during Luxi calls could have been
245
  interpreted as server errors, instead of simply terminating
246
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
247
  assign-nodes``)
248
- Added a few more parameters to the KVM hypervisor, allowing a second
249
  CDROM, custom disk type for CDROMs and a floppy image
250
- Removed redundant message in instance rename when the name is given
251
  already as a FQDN
252
- Added option to ``gnt-instance recreate-disks`` to allow creating the
253
  disks on new nodes, allowing recreation when the original instance
254
  nodes are completely gone
255
- Added option when converting disk templates to DRBD to skip waiting
256
  for the resync, in order to make the instance available sooner
257
- Added two new variables to the OS scripts environment (containing the
258
  instance's nodes)
259
- Made the root_path and optional parameter for the xen-pvm hypervisor,
260
  to allow use of ``pvgrub`` as bootloader
261
- Changed the instance memory modifications to only check out-of-memory
262
  conditions on memory increases, and turned the secondary node warnings
263
  into errors (they can still be overridden via ``--force``)
264
- Fixed the handling of a corner case when the Python installation gets
265
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
266
  to execute a command that doesn't exist
267
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
268
  node of the instance returned failures during instance shutdown; this
269
  adds the option ``--ignore-consistency`` to gnt-instance move
270

    
271
And as usual, various improvements to the error messages, documentation
272
and man pages.
273

    
274
Version 2.4.1
275
-------------
276

    
277
*(Released Wed, 09 Mar 2011)*
278

    
279
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
280
the RAPI users file if run twice (even with ``--dry-run``).
281

    
282
The release fixes that bug (nothing else changed).
283

    
284

    
285
Version 2.4.0
286
-------------
287

    
288
*(Released Mon, 07 Mar 2011)*
289

    
290
Final 2.4.0 release. Just a few small fixes:
291

    
292
- Fixed RAPI node evacuate
293
- Fixed the kvm-ifup script
294
- Fixed internal error handling for special job cases
295
- Updated man page to specify the escaping feature for options
296

    
297

    
298
Version 2.4.0 rc3
299
-----------------
300

    
301
*(Released Mon, 28 Feb 2011)*
302

    
303
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
304
that this feature wiped the disks of the wrong instance, leading to loss
305
of data.
306

    
307
Other changes:
308

    
309
- Fixed title of query field containing instance name
310
- Expanded the glossary in the documentation
311
- Fixed one unittest (internal issue)
312

    
313

    
314
Version 2.4.0 rc2
315
-----------------
316

    
317
*(Released Mon, 21 Feb 2011)*
318

    
319
A number of bug fixes plus just a couple functionality changes.
320

    
321
On the user-visible side, the ``gnt-* list`` command output has changed
322
with respect to "special" field states. The current rc1 style of display
323
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
324
the default output mode special fields states are displayed as follows:
325

    
326
- Offline resource: ``*``
327
- Unavailable/not applicable: ``-``
328
- Data missing (RPC failure): ``?``
329
- Unknown field: ``??``
330

    
331
Another user-visible change is the addition of ``--force-join`` to
332
``gnt-node add``.
333

    
334
As for bug fixes:
335

    
336
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
337
- Fixed regression in RAPI/instance reinstall where all parameters were
338
  required (instead of optional)
339
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
340
- Fixed iallocator usage (offline nodes were not considered offline)
341
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
342
- Fixed hypervisor and OS parameter validation with respect to
343
  non-vm_capable nodes
344
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
345
  cosmetic)
346
- Fixed ``tools/listrunner`` with respect to agent-based usage
347

    
348

    
349
Version 2.4.0 rc1
350
-----------------
351

    
352
*(Released Fri,  4 Feb 2011)*
353

    
354
Many changes and fixes since the beta1 release. While there were some
355
internal changes, the code has been mostly stabilised for the RC
356
release.
357

    
358
Note: the dumb allocator was removed in this release, as it was not kept
359
up-to-date with the IAllocator protocol changes. It is recommended to
360
use the ``hail`` command from the ganeti-htools package.
361

    
362
Note: the 2.4 and up versions of Ganeti are not compatible with the
363
0.2.x branch of ganeti-htools. You need to upgrade to
364
ganeti-htools-0.3.0 (or later).
365

    
366
Regressions fixed from 2.3
367
~~~~~~~~~~~~~~~~~~~~~~~~~~
368

    
369
- Fixed the ``gnt-cluster verify-disks`` command
370
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
371
  serially on nodes)
372
- Fixed disk adoption breakage
373
- Fixed wrong headers in instance listing for field aliases
374

    
375
Other bugs fixed
376
~~~~~~~~~~~~~~~~
377

    
378
- Fixed corner case in KVM handling of NICs
379
- Fixed many cases of wrong handling of non-vm_capable nodes
380
- Fixed a bug where a missing instance symlink was not possible to
381
  recreate with any ``gnt-*`` command (now ``gnt-instance
382
  activate-disks`` does it)
383
- Fixed the volume group name as reported by ``gnt-cluster
384
  verify-disks``
385
- Increased timeouts for the import-export code, hopefully leading to
386
  fewer aborts due network or instance timeouts
387
- Fixed bug in ``gnt-node list-storage``
388
- Fixed bug where not all daemons were started on cluster
389
  initialisation, but only at the first watcher run
390
- Fixed many bugs in the OOB implementation
391
- Fixed watcher behaviour in presence of instances with offline
392
  secondaries
393
- Fixed instance list output for instances running on the wrong node
394
- a few fixes to the cluster-merge tool, but it still cannot merge
395
  multi-node groups (currently it is not recommended to use this tool)
396

    
397

    
398
Improvements
399
~~~~~~~~~~~~
400

    
401
- Improved network configuration for the KVM hypervisor
402
- Added e1000 as a supported NIC for Xen-HVM
403
- Improved the lvmstrap tool to also be able to use partitions, as
404
  opposed to full disks
405
- Improved speed of disk wiping (the cluster parameter
406
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
407
  of instance creations
408
- Added documentation for the OS parameters
409
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
410
  hypervisor is not responding
411
- Added display of blacklisted and hidden OS information in
412
  ``gnt-cluster info``
413
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
414
  NIC and node parameters, which might create problems with currently
415
  invalid (but undetected) configuration files, but prevents validation
416
  failures when unrelated parameters are modified
417
- Changed cluster initialisation to wait for the master daemon to become
418
  available
419
- Expanded the RAPI interface:
420

    
421
  - Added config redistribution resource
422
  - Added activation/deactivation of instance disks
423
  - Added export of console information
424

    
425
- Implemented log file reopening on SIGHUP, which allows using
426
  logrotate(8) for the Ganeti log files
427
- Added a basic OOB helper script as an example
428

    
429

    
430
Version 2.4.0 beta1
431
-------------------
432

    
433
*(Released Fri, 14 Jan 2011)*
434

    
435
User-visible
436
~~~~~~~~~~~~
437

    
438
- Fixed timezone issues when formatting timestamps
439
- Added support for node groups, available via ``gnt-group`` and other
440
  commands
441
- Added out-of-band framework and management, see :doc:`design
442
  document <design-oob>`
443
- Removed support for roman numbers from ``gnt-node list`` and
444
  ``gnt-instance list``.
445
- Allowed modification of master network interface via ``gnt-cluster
446
  modify --master-netdev``
447
- Accept offline secondaries while shutting down instance disks
448
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
449
- Added support for multiple LVM volume groups
450
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
451
  requested
452
- Added commands to list available fields:
453

    
454
  - ``gnt-node list-fields``
455
  - ``gnt-group list-fields``
456
  - ``gnt-instance list-fields``
457

    
458
- Updated documentation and man pages
459

    
460
Integration
461
~~~~~~~~~~~
462

    
463
- Moved ``rapi_users`` file into separate directory, now named
464
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
465
  symlink
466
- Added new tool for running commands on many machines,
467
  ``tools/ganeti-listrunner``
468
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
469
  improving the ``gnt-instance console`` output
470
- Allowed customisation of disk index separator at ``configure`` time
471
- Export node group allocation policy to :doc:`iallocator <iallocator>`
472
- Added support for non-partitioned md disks in ``lvmstrap``
473
- Added script to gracefully power off KVM instances
474
- Split ``utils`` module into smaller parts
475
- Changed query operations to return more detailed information, e.g.
476
  whether an information is unavailable due to an offline node. To use
477
  this new functionality, the LUXI call ``Query`` must be used. Field
478
  information is now stored by the master daemon and can be retrieved
479
  using ``QueryFields``. Instances, nodes and groups can also be queried
480
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
481
  exposed via RAPI). The following commands make use of this
482
  infrastructure change:
483

    
484
  - ``gnt-group list``
485
  - ``gnt-group list-fields``
486
  - ``gnt-node list``
487
  - ``gnt-node list-fields``
488
  - ``gnt-instance list``
489
  - ``gnt-instance list-fields``
490
  - ``gnt-debug locks``
491

    
492
Remote API
493
~~~~~~~~~~
494

    
495
- New RAPI resources (see :doc:`rapi`):
496

    
497
  - ``/2/modify``
498
  - ``/2/groups``
499
  - ``/2/groups/[group_name]``
500
  - ``/2/groups/[group_name]/assign-nodes``
501
  - ``/2/groups/[group_name]/modify``
502
  - ``/2/groups/[group_name]/rename``
503
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
504

    
505
- RAPI changes:
506

    
507
  - Implemented ``no_install`` for instance creation
508
  - Implemented OS parameters for instance reinstallation, allowing
509
    use of special settings on reinstallation (e.g. for preserving data)
510

    
511
Misc
512
~~~~
513

    
514
- Added IPv6 support in import/export
515
- Pause DRBD synchronization while wiping disks on instance creation
516
- Updated unittests and QA scripts
517
- Improved network parameters passed to KVM
518
- Converted man pages from docbook to reStructuredText
519

    
520

    
521
Version 2.3.1
522
-------------
523

    
524
*(Released Mon, 20 Dec 2010)*
525

    
526
Released version 2.3.1~rc1 without any changes.
527

    
528

    
529
Version 2.3.1 rc1
530
-----------------
531

    
532
*(Released Wed, 1 Dec 2010)*
533

    
534
- impexpd: Disable OpenSSL compression in socat if possible (backport
535
  from master, commit e90739d625b, see :doc:`installation guide
536
  <install-quick>` for details)
537
- Changed unittest coverage report to exclude test scripts
538
- Added script to check version format
539

    
540

    
541
Version 2.3.0
542
-------------
543

    
544
*(Released Wed, 1 Dec 2010)*
545

    
546
Released version 2.3.0~rc1 without any changes.
547

    
548

    
549
Version 2.3.0 rc1
550
-----------------
551

    
552
*(Released Fri, 19 Nov 2010)*
553

    
554
A number of bugfixes and documentation updates:
555

    
556
- Update ganeti-os-interface documentation
557
- Fixed a bug related to duplicate MACs or similar items which should be
558
  unique
559
- Fix breakage in OS state modify
560
- Reinstall instance: disallow offline secondaries (fixes bug related to
561
  OS changing but reinstall failing)
562
- plus all the other fixes between 2.2.1 and 2.2.2
563

    
564

    
565
Version 2.3.0 rc0
566
-----------------
567

    
568
*(Released Tue, 2 Nov 2010)*
569

    
570
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
571
- Fixed master failover race with watcher
572
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
573
  configuration
574
- Accept previously stopped instance for export with instance removal
575
- Simplify and extend the environment variables for instance OS scripts
576
- Added new node flags, ``master_capable`` and ``vm_capable``
577
- Added optional instance disk wiping prior during allocation. This is a
578
  cluster-wide option and can be set/modified using
579
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
580
- Added IPv6 support, see :doc:`design document <design-2.3>` and
581
  :doc:`install-quick`
582
- Added a new watcher option (``--ignore-pause``)
583
- Added option to ignore offline node on instance start/stop
584
  (``--ignore-offline``)
585
- Allow overriding OS parameters with ``gnt-instance reinstall``
586
- Added ability to change node's secondary IP address using ``gnt-node
587
  modify``
588
- Implemented privilege separation for all daemons except
589
  ``ganeti-noded``, see ``configure`` options
590
- Complain if an instance's disk is marked faulty in ``gnt-cluster
591
  verify``
592
- Implemented job priorities (see ``ganeti(7)`` manpage)
593
- Ignore failures while shutting down instances during failover from
594
  offline node
595
- Exit daemon's bootstrap process only once daemon is ready
596
- Export more information via ``LUInstanceQuery``/remote API
597
- Improved documentation, QA and unittests
598
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
599
  restart if the file was created or changed
600
- Added LUXI protocol version sent with each request and response,
601
  allowing detection of server/client mismatches
602
- Moved the Python scripts among gnt-* and ganeti-* into modules
603
- Moved all code related to setting up SSH to an external script,
604
  ``setup-ssh``
605
- Infrastructure changes for node group support in future versions
606

    
607

    
608
Version 2.2.2
609
-------------
610

    
611
*(Released Fri, 19 Nov 2010)*
612

    
613
A few small bugs fixed, and some improvements to the build system:
614

    
615
- Fix documentation regarding conversion to drbd
616
- Fix validation of parameters in cluster modify (``gnt-cluster modify
617
  -B``)
618
- Fix error handling in node modify with multiple changes
619
- Allow remote imports without checked names
620

    
621

    
622
Version 2.2.1
623
-------------
624

    
625
*(Released Tue, 19 Oct 2010)*
626

    
627
- Disable SSL session ID cache in RPC client
628

    
629

    
630
Version 2.2.1 rc1
631
-----------------
632

    
633
*(Released Thu, 14 Oct 2010)*
634

    
635
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
636
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
637
  with GnuTLS
638
- Fix problems with interaction between Curl and Python's HTTP server,
639
  resulting in increased speed in many RPC calls
640
- Improve our release script to prevent breakage with older aclocal and
641
  Python 2.6
642

    
643

    
644
Version 2.2.1 rc0
645
-----------------
646

    
647
*(Released Thu, 7 Oct 2010)*
648

    
649
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
650
  value retrieved from master
651
- Added support for blacklisted or hidden OS definitions
652
- Added simple lock monitor (accessible via (``gnt-debug locks``)
653
- Added support for -mem-path in KVM hypervisor abstraction layer
654
- Allow overriding instance parameters in tool for inter-cluster
655
  instance moves (``tools/move-instance``)
656
- Improved opcode summaries (e.g. in ``gnt-job list``)
657
- Improve consistency of OS listing by sorting it
658
- Documentation updates
659

    
660

    
661
Version 2.2.0.1
662
---------------
663

    
664
*(Released Fri, 8 Oct 2010)*
665

    
666
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
667

    
668

    
669
Version 2.2.0
670
-------------
671

    
672
*(Released Mon, 4 Oct 2010)*
673

    
674
- Fixed regression in ``gnt-instance rename``
675

    
676

    
677
Version 2.2.0 rc2
678
-----------------
679

    
680
*(Released Wed, 22 Sep 2010)*
681

    
682
- Fixed OS_VARIANT variable for OS scripts
683
- Fixed cluster tag operations via RAPI
684
- Made ``setup-ssh`` exit with non-zero code if an error occurred
685
- Disabled RAPI CA checks in watcher
686

    
687

    
688
Version 2.2.0 rc1
689
-----------------
690

    
691
*(Released Mon, 23 Aug 2010)*
692

    
693
- Support DRBD versions of the format "a.b.c.d"
694
- Updated manpages
695
- Re-introduce support for usage from multiple threads in RAPI client
696
- Instance renames and modify via RAPI
697
- Work around race condition between processing and archival in job
698
  queue
699
- Mark opcodes following failed one as failed, too
700
- Job field ``lock_status`` was removed due to difficulties making it
701
  work with the changed job queue in Ganeti 2.2; a better way to monitor
702
  locks is expected for a later 2.2.x release
703
- Fixed dry-run behaviour with many commands
704
- Support ``ssh-agent`` again when adding nodes
705
- Many additional bugfixes
706

    
707

    
708
Version 2.2.0 rc0
709
-----------------
710

    
711
*(Released Fri, 30 Jul 2010)*
712

    
713
Important change: the internal RPC mechanism between Ganeti nodes has
714
changed from using a home-grown http library (based on the Python base
715
libraries) to use the PycURL library. This requires that PycURL is
716
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
717
against GnuTLS by default. cURL's support for GnuTLS had known issues
718
before cURL 7.21.0 and we recommend using the latest cURL release or
719
linking against OpenSSL. Most other distributions already link PycURL
720
and cURL against OpenSSL. The command::
721

    
722
  python -c 'import pycurl; print pycurl.version'
723

    
724
can be used to determine the libraries PycURL and cURL are linked
725
against.
726

    
727
Other significant changes:
728

    
729
- Rewrote much of the internals of the job queue, in order to achieve
730
  better parallelism; this decouples job query operations from the job
731
  processing, and it should allow much nicer behaviour of the master
732
  daemon under load, and it also has uncovered some long-standing bugs
733
  related to the job serialisation (now fixed)
734
- Added a default iallocator setting to the cluster parameters,
735
  eliminating the need to always pass nodes or an iallocator for
736
  operations that require selection of new node(s)
737
- Added experimental support for the LXC virtualization method
738
- Added support for OS parameters, which allows the installation of
739
  instances to pass parameter to OS scripts in order to customise the
740
  instance
741
- Added a hypervisor parameter controlling the migration type (live or
742
  non-live), since hypervisors have various levels of reliability; this
743
  has renamed the 'live' parameter to 'mode'
744
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
745
  logical volumes, meaning that cluster verify will ignore them and not
746
  flag their presence as errors
747
- The watcher will now reset the error count for failed instances after
748
  8 hours, thus allowing self-healing if the problem that caused the
749
  instances to be down/fail to start has cleared in the meantime
750
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
751
  check for, and warn, if the drbd module parameter ``usermode_helper``
752
  is not consistent with the cluster-wide setting; this is needed to
753
  make diagnose easier of failed drbd creations
754
- Started adding base IPv6 support, but this is not yet
755
  enabled/available for use
756
- Rename operations (cluster, instance) will now return the new name,
757
  which is especially useful if a short name was passed in
758
- Added support for instance migration in RAPI
759
- Added a tool to pre-configure nodes for the SSH setup, before joining
760
  them to the cluster; this will allow in the future a simplified model
761
  for node joining (but not yet fully enabled in 2.2); this needs the
762
  paramiko python library
763
- Fixed handling of name-resolving errors
764
- Fixed consistency of job results on the error path
765
- Fixed master-failover race condition when executed multiple times in
766
  sequence
767
- Fixed many bugs related to the job queue (mostly introduced during the
768
  2.2 development cycle, so not all are impacting 2.1)
769
- Fixed instance migration with missing disk symlinks
770
- Fixed handling of unknown jobs in ``gnt-job archive``
771
- And many other small fixes/improvements
772

    
773
Internal changes:
774

    
775
- Enhanced both the unittest and the QA coverage
776
- Switched the opcode validation to a generic model, and extended the
777
  validation to all opcode parameters
778
- Changed more parts of the code that write shell scripts to use the
779
  same class for this
780
- Switched the master daemon to use the asyncore library for the Luxi
781
  server endpoint
782

    
783

    
784
Version 2.2.0 beta 0
785
--------------------
786

    
787
*(Released Thu, 17 Jun 2010)*
788

    
789
- Added tool (``move-instance``) and infrastructure to move instances
790
  between separate clusters (see :doc:`separate documentation
791
  <move-instance>` and :doc:`design document <design-2.2>`)
792
- Added per-request RPC timeout
793
- RAPI now requires a Content-Type header for requests with a body (e.g.
794
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
795
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
796
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
797
  reachable
798
- Implemented initial support for running Ganeti daemons as separate
799
  users, see configure-time flags ``--with-user-prefix`` and
800
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
801
  time)
802
- Instances can be removed after export (``gnt-backup export
803
  --remove-instance``)
804
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
805
  key (instead of 1024 bit)
806
- Added new cluster configuration file for cluster domain secret
807
- Import/export now use SSL instead of SSH
808
- Added support for showing estimated time when exporting an instance,
809
  see the ``ganeti-os-interface(7)`` manpage and look for
810
  ``EXP_SIZE_FD``
811

    
812

    
813
Version 2.1.8
814
-------------
815

    
816
*(Released Tue, 16 Nov 2010)*
817

    
818
Some more bugfixes. Unless critical bugs occur, this will be the last
819
2.1 release:
820

    
821
- Fix case of MAC special-values
822
- Fix mac checker regex
823
- backend: Fix typo causing "out of range" error
824
- Add missing --units in gnt-instance list man page
825

    
826

    
827
Version 2.1.7
828
-------------
829

    
830
*(Released Tue, 24 Aug 2010)*
831

    
832
Bugfixes only:
833
  - Don't ignore secondary node silently on non-mirrored disk templates
834
    (issue 113)
835
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
836
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
837
  - Properly document the usb_mouse parameter
838
  - Fix path in ganeti-rapi(8) (issue 116)
839
  - Adjust error message when the ganeti user's .ssh directory is
840
    missing
841
  - Add same-node-check when changing the disk template to drbd
842

    
843

    
844
Version 2.1.6
845
-------------
846

    
847
*(Released Fri, 16 Jul 2010)*
848

    
849
Bugfixes only:
850
  - Add an option to only select some reboot types during qa/burnin.
851
    (on some hypervisors consequent reboots are not supported)
852
  - Fix infrequent race condition in master failover. Sometimes the old
853
    master ip address would be still detected as up for a short time
854
    after it was removed, causing failover to fail.
855
  - Decrease mlockall warnings when the ctypes module is missing. On
856
    Python 2.4 we support running even if no ctypes module is installed,
857
    but we were too verbose about this issue.
858
  - Fix building on old distributions, on which man doesn't have a
859
    --warnings option.
860
  - Fix RAPI not to ignore the MAC address on instance creation
861
  - Implement the old instance creation format in the RAPI client.
862

    
863

    
864
Version 2.1.5
865
-------------
866

    
867
*(Released Thu, 01 Jul 2010)*
868

    
869
A small bugfix release:
870
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
871
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
872
    a non-existing option
873
  - Fix instance create: the --force-variant option was ignored
874
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
875
  - Fix modify node storage with non-FQDN arguments
876
  - Fix RAPI client to authenticate under Python 2.6 when used
877
    for more than 5 requests needing authentication
878
  - Fix gnt-instance modify -t (storage) giving a wrong error message
879
    when converting a non-shutdown drbd instance to plain
880

    
881

    
882
Version 2.1.4
883
-------------
884

    
885
*(Released Fri, 18 Jun 2010)*
886

    
887
A small bugfix release:
888

    
889
  - Fix live migration of KVM instances started with older Ganeti
890
    versions which had fewer hypervisor parameters
891
  - Fix gnt-instance grow-disk on down instances
892
  - Fix an error-reporting bug during instance migration
893
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
894
    silently ignoring broken ones
895
  - Fix an RPC error reporting bug affecting, for example, RAPI client
896
    users
897
  - Fix bug triggered by different API version os-es on different nodes
898
  - Fix a bug in instance startup with custom hvparams: OS level
899
    parameters would fail to be applied.
900
  - Fix the RAPI client under Python 2.6 (but more work is needed to
901
    make it work completely well with OpenSSL)
902
  - Fix handling of errors when resolving names from DNS
903

    
904

    
905
Version 2.1.3
906
-------------
907

    
908
*(Released Thu, 3 Jun 2010)*
909

    
910
A medium sized development cycle. Some new features, and some
911
fixes/small improvements/cleanups.
912

    
913
Significant features
914
~~~~~~~~~~~~~~~~~~~~
915

    
916
The node deamon now tries to mlock itself into memory, unless the
917
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
918
its logs, and falls back to console logging. This allows emergency
919
features such as ``gnt-node powercycle`` to work even in the event of a
920
broken node disk (tested offlining the disk hosting the node's
921
filesystem and dropping its memory caches; don't try this at home)
922

    
923
KVM: add vhost-net acceleration support. It can be tested with a new
924
enough version of the kernel and of qemu-kvm.
925

    
926
KVM: Add instance chrooting feature. If you use privilege dropping for
927
your VMs you can also now force them to chroot to an empty directory,
928
before starting the emulated guest.
929

    
930
KVM: Add maximum migration bandwith and maximum downtime tweaking
931
support (requires a new-enough version of qemu-kvm).
932

    
933
Cluster verify will now warn if the master node doesn't have the master
934
ip configured on it.
935

    
936
Add a new (incompatible) instance creation request format to RAPI which
937
supports all parameters (previously only a subset was supported, and it
938
wasn't possible to extend the old format to accomodate all the new
939
features. The old format is still supported, and a client can check for
940
this feature, before using it, by checking for its presence in the
941
``features`` RAPI resource.
942

    
943
Now with ancient latin support. Try it passing the ``--roman`` option to
944
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
945
(requires the python-roman module to be installed, in order to work).
946

    
947
Other changes
948
~~~~~~~~~~~~~
949

    
950
As usual many internal code refactorings, documentation updates, and
951
such. Among others:
952

    
953
  - Lots of improvements and cleanups to the experimental Remote API
954
    (RAPI) client library.
955
  - A new unit test suite for the core daemon libraries.
956
  - A fix to creating missing directories makes sure the umask is not
957
    applied anymore. This enforces the same directory permissions
958
    everywhere.
959
  - Better handling terminating daemons with ctrl+c (used when running
960
    them in debugging mode).
961
  - Fix a race condition in live migrating a KVM instance, when stat()
962
    on the old proc status file returned EINVAL, which is an unexpected
963
    value.
964
  - Fixed manpage checking with newer man and utf-8 charachters. But now
965
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
966

    
967

    
968
Version 2.1.2.1
969
---------------
970

    
971
*(Released Fri, 7 May 2010)*
972

    
973
Fix a bug which prevented untagged KVM instances from starting.
974

    
975

    
976
Version 2.1.2
977
-------------
978

    
979
*(Released Fri, 7 May 2010)*
980

    
981
Another release with a long development cycle, during which many
982
different features were added.
983

    
984
Significant features
985
~~~~~~~~~~~~~~~~~~~~
986

    
987
The KVM hypervisor now can run the individual instances as non-root, to
988
reduce the impact of a VM being hijacked due to bugs in the
989
hypervisor. It is possible to run all instances as a single (non-root)
990
user, to manually specify a user for each instance, or to dynamically
991
allocate a user out of a cluster-wide pool to each instance, with the
992
guarantee that no two instances will run under the same user ID on any
993
given node.
994

    
995
An experimental RAPI client library, that can be used standalone
996
(without the other Ganeti libraries), is provided in the source tree as
997
``lib/rapi/client.py``. Note this client might change its interface in
998
the future, as we iterate on its capabilities.
999

    
1000
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1001
replace the cluster's certificates and crypto keys. This might help in
1002
case they have been compromised, or have simply expired.
1003

    
1004
A new disk option for instance creation has been added that allows one
1005
to "adopt" currently existing logical volumes, with data
1006
preservation. This should allow easier migration to Ganeti from
1007
unmanaged (or managed via other software) instances.
1008

    
1009
Another disk improvement is the possibility to convert between redundant
1010
(DRBD) and plain (LVM) disk configuration for an instance. This should
1011
allow better scalability (starting with one node and growing the
1012
cluster, or shrinking a two-node cluster to one node).
1013

    
1014
A new feature that could help with automated node failovers has been
1015
implemented: if a node sees itself as offline (by querying the master
1016
candidates), it will try to shutdown (hard) all instances and any active
1017
DRBD devices. This reduces the risk of duplicate instances if an
1018
external script automatically failovers the instances on such nodes. To
1019
enable this, the cluster parameter ``maintain_node_health`` should be
1020
enabled; in the future this option (per the name) will enable other
1021
automatic maintenance features.
1022

    
1023
Instance export/import now will reuse the original instance
1024
specifications for all parameters; that means exporting an instance,
1025
deleting it and the importing it back should give an almost identical
1026
instance. Note that the default import behaviour has changed from
1027
before, where it created only one NIC; now it recreates the original
1028
number of NICs.
1029

    
1030
Cluster verify has added a few new checks: SSL certificates validity,
1031
/etc/hosts consistency across the cluster, etc.
1032

    
1033
Other changes
1034
~~~~~~~~~~~~~
1035

    
1036
As usual, many internal changes were done, documentation fixes,
1037
etc. Among others:
1038

    
1039
- Fixed cluster initialization with disabled cluster storage (regression
1040
  introduced in 2.1.1)
1041
- File-based storage supports growing the disks
1042
- Fixed behaviour of node role changes
1043
- Fixed cluster verify for some corner cases, plus a general rewrite of
1044
  cluster verify to allow future extension with more checks
1045
- Fixed log spamming by watcher and node daemon (regression introduced
1046
  in 2.1.1)
1047
- Fixed possible validation issues when changing the list of enabled
1048
  hypervisors
1049
- Fixed cleanup of /etc/hosts during node removal
1050
- Fixed RAPI response for invalid methods
1051
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1052
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1053
  from ide disks, etc.)
1054
- Allow OS changes without re-installation (to record a changed OS
1055
  outside of Ganeti, or to allow OS renames)
1056
- Allow instance creation without OS installation (useful for example if
1057
  the OS will be installed manually, or restored from a backup not in
1058
  Ganeti format)
1059
- Implemented option to make cluster ``copyfile`` use the replication
1060
  network
1061
- Added list of enabled hypervisors to ssconf (possibly useful for
1062
  external scripts)
1063
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1064
  1.2 clusters
1065
- A partial form of node re-IP is possible via node readd, which now
1066
  allows changed node primary IP
1067
- Command line utilities now show an informational message if the job is
1068
  waiting for a lock
1069
- The logs of the master daemon now show the PID/UID/GID of the
1070
  connected client
1071

    
1072

    
1073
Version 2.1.1
1074
-------------
1075

    
1076
*(Released Fri, 12 Mar 2010)*
1077

    
1078
During the 2.1.0 long release candidate cycle, a lot of improvements and
1079
changes have accumulated with were released later as 2.1.1.
1080

    
1081
Major changes
1082
~~~~~~~~~~~~~
1083

    
1084
The node evacuate command (``gnt-node evacuate``) was significantly
1085
rewritten, and as such the IAllocator protocol was changed - a new
1086
request type has been added. This unfortunate change during a stable
1087
series is designed to improve performance of node evacuations; on
1088
clusters with more than about five nodes and which are well-balanced,
1089
evacuation should proceed in parallel for all instances of the node
1090
being evacuated. As such, any existing IAllocator scripts need to be
1091
updated, otherwise the above command will fail due to the unknown
1092
request. The provided "dumb" allocator has not been updated; but the
1093
ganeti-htools package supports the new protocol since version 0.2.4.
1094

    
1095
Another important change is increased validation of node and instance
1096
names. This might create problems in special cases, if invalid host
1097
names are being used.
1098

    
1099
Also, a new layer of hypervisor parameters has been added, that sits at
1100
OS level between the cluster defaults and the instance ones. This allows
1101
customisation of virtualization parameters depending on the installed
1102
OS. For example instances with OS 'X' may have a different KVM kernel
1103
(or any other parameter) than the cluster defaults. This is intended to
1104
help managing a multiple OSes on the same cluster, without manual
1105
modification of each instance's parameters.
1106

    
1107
A tool for merging clusters, ``cluster-merge``, has been added in the
1108
tools sub-directory.
1109

    
1110
Bug fixes
1111
~~~~~~~~~
1112

    
1113
- Improved the int/float conversions that should make the code more
1114
  robust in face of errors from the node daemons
1115
- Fixed the remove node code in case of internal configuration errors
1116
- Fixed the node daemon behaviour in face of inconsistent queue
1117
  directory (e.g. read-only file-system where we can't open the files
1118
  read-write, etc.)
1119
- Fixed the behaviour of gnt-node modify for master candidate demotion;
1120
  now it either aborts cleanly or, if given the new "auto_promote"
1121
  parameter, will automatically promote other nodes as needed
1122
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
1123
  completely prevent Ganeti from working
1124
- Fixed bug for instance export when not all disks were successfully
1125
  exported
1126
- Fixed behaviour of node add when the new node is slow in starting up
1127
  the node daemon
1128
- Fixed handling of signals in the LUXI client, which should improve
1129
  behaviour of command-line scripts
1130
- Added checks for invalid node/instance names in the configuration (now
1131
  flagged during cluster verify)
1132
- Fixed watcher behaviour for disk activation errors
1133
- Fixed two potentially endless loops in http library, which led to the
1134
  RAPI daemon hanging and consuming 100% CPU in some cases
1135
- Fixed bug in RAPI daemon related to hashed passwords
1136
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
1137
  instances
1138
- Enhanced compatibility with non-Debian OSes, but not using absolute
1139
  path in some commands and allowing customisation of the ssh
1140
  configuration directory
1141
- Fixed possible future issue with new Python versions by abiding to the
1142
  proper use of ``__slots__`` attribute on classes
1143
- Added checks that should prevent directory traversal attacks
1144
- Many documentation fixes based on feedback from users
1145

    
1146
New features
1147
~~~~~~~~~~~~
1148

    
1149
- Added an "early_release" more for instance replace disks and node
1150
  evacuate, where we release locks earlier and thus allow higher
1151
  parallelism within the cluster
1152
- Added watcher hooks, intended to allow the watcher to restart other
1153
  daemons (e.g. from the ganeti-nbma project), but they can be used of
1154
  course for any other purpose
1155
- Added a compile-time disable for DRBD barriers, to increase
1156
  performance if the administrator trusts the power supply or the
1157
  storage system to not lose writes
1158
- Added the option of using syslog for logging instead of, or in
1159
  addition to, Ganeti's own log files
1160
- Removed boot restriction for paravirtual NICs for KVM, recent versions
1161
  can indeed boot from a paravirtual NIC
1162
- Added a generic debug level for many operations; while this is not
1163
  used widely yet, it allows one to pass the debug value all the way to
1164
  the OS scripts
1165
- Enhanced the hooks environment for instance moves (failovers,
1166
  migrations) where the primary/secondary nodes changed during the
1167
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1168
- Enhanced data validations for many user-supplied values; one important
1169
  item is the restrictions imposed on instance and node names, which
1170
  might reject some (invalid) host names
1171
- Add a configure-time option to disable file-based storage, if it's not
1172
  needed; this allows greater security separation between the master
1173
  node and the other nodes from the point of view of the inter-node RPC
1174
  protocol
1175
- Added user notification in interactive tools if job is waiting in the
1176
  job queue or trying to acquire locks
1177
- Added log messages when a job is waiting for locks
1178
- Added filtering by node tags in instance operations which admit
1179
  multiple instances (start, stop, reboot, reinstall)
1180
- Added a new tool for cluster mergers, ``cluster-merge``
1181
- Parameters from command line which are of the form ``a=b,c=d`` can now
1182
  use backslash escapes to pass in values which contain commas,
1183
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1184
  ``b,c``
1185
- For KVM, the instance name is the first parameter passed to KVM, so
1186
  that it's more visible in the process list
1187

    
1188

    
1189
Version 2.1.0
1190
-------------
1191

    
1192
*(Released Tue, 2 Mar 2010)*
1193

    
1194
Ganeti 2.1 brings many improvements with it. Major changes:
1195

    
1196
- Added infrastructure to ease automated disk repairs
1197
- Added new daemon to export configuration data in a cheaper way than
1198
  using the remote API
1199
- Instance NICs can now be routed instead of being associated with a
1200
  networking bridge
1201
- Improved job locking logic to reduce impact of jobs acquiring multiple
1202
  locks waiting for other long-running jobs
1203

    
1204
In-depth implementation details can be found in the Ganeti 2.1 design
1205
document.
1206

    
1207
Details
1208
~~~~~~~
1209

    
1210
- Added chroot hypervisor
1211
- Added more options to xen-hvm hypervisor (``kernel_path`` and
1212
  ``device_model``)
1213
- Added more options to xen-pvm hypervisor (``use_bootloader``,
1214
  ``bootloader_path`` and ``bootloader_args``)
1215
- Added the ``use_localtime`` option for the xen-hvm and kvm
1216
  hypervisors, and the default value for this has changed to false (in
1217
  2.0 xen-hvm always enabled it)
1218
- Added luxi call to submit multiple jobs in one go
1219
- Added cluster initialization option to not modify ``/etc/hosts``
1220
  file on nodes
1221
- Added network interface parameters
1222
- Added dry run mode to some LUs
1223
- Added RAPI resources:
1224

    
1225
  - ``/2/instances/[instance_name]/info``
1226
  - ``/2/instances/[instance_name]/replace-disks``
1227
  - ``/2/nodes/[node_name]/evacuate``
1228
  - ``/2/nodes/[node_name]/migrate``
1229
  - ``/2/nodes/[node_name]/role``
1230
  - ``/2/nodes/[node_name]/storage``
1231
  - ``/2/nodes/[node_name]/storage/modify``
1232
  - ``/2/nodes/[node_name]/storage/repair``
1233

    
1234
- Added OpCodes to evacuate or migrate all instances on a node
1235
- Added new command to list storage elements on nodes (``gnt-node
1236
  list-storage``) and modify them (``gnt-node modify-storage``)
1237
- Added new ssconf files with master candidate IP address
1238
  (``ssconf_master_candidates_ips``), node primary IP address
1239
  (``ssconf_node_primary_ips``) and node secondary IP address
1240
  (``ssconf_node_secondary_ips``)
1241
- Added ``ganeti-confd`` and a client library to query the Ganeti
1242
  configuration via UDP
1243
- Added ability to run hooks after cluster initialization and before
1244
  cluster destruction
1245
- Added automatic mode for disk replace (``gnt-instance replace-disks
1246
  --auto``)
1247
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
1248
  after catastrophic data-loss
1249
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
1250
  groups
1251
- Added ``gnt-instance move`` command to move instances
1252
- Added ``gnt-cluster watcher`` command to control watcher
1253
- Added ``gnt-node powercycle`` command to powercycle nodes
1254
- Added new job status field ``lock_status``
1255
- Added parseable error codes to cluster verification (``gnt-cluster
1256
  verify --error-codes``) and made output less verbose (use
1257
  ``--verbose`` to restore previous behaviour)
1258
- Added UUIDs to the main config entities (cluster, nodes, instances)
1259
- Added support for OS variants
1260
- Added support for hashed passwords in the Ganeti remote API users file
1261
  (``rapi_users``)
1262
- Added option to specify maximum timeout on instance shutdown
1263
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
1264
- Added new helper script to start and stop Ganeti daemons
1265
  (``daemon-util``), with the intent to reduce the work necessary to
1266
  adjust Ganeti for non-Debian distributions and to start/stop daemons
1267
  from one place
1268
- Added more unittests
1269
- Fixed critical bug in ganeti-masterd startup
1270
- Removed the configure-time ``kvm-migration-port`` parameter, this is
1271
  now customisable at the cluster level for both the KVM and Xen
1272
  hypervisors using the new ``migration_port`` parameter
1273
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
1274
  reinstalling an instance
1275
- Allowed ``@`` in tag names
1276
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
1277
- Many documentation updates
1278
- Distribute hypervisor files on ``gnt-cluster redist-conf``
1279
- ``gnt-instance reinstall`` can now reinstall multiple instances
1280
- Updated many command line parameters
1281
- Introduced new OS API version 15
1282
- No longer support a default hypervisor
1283
- Treat virtual LVs as inexistent
1284
- Improved job locking logic to reduce lock contention
1285
- Match instance and node names case insensitively
1286
- Reimplemented bash completion script to be more complete
1287
- Improved burnin
1288

    
1289

    
1290
Version 2.0.6
1291
-------------
1292

    
1293
*(Released Thu, 4 Feb 2010)*
1294

    
1295
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
1296
- Fix a string formatting bug
1297
- Improve safety of the code in some error paths
1298
- Improve data validation in the master of values returned from nodes
1299

    
1300

    
1301
Version 2.0.5
1302
-------------
1303

    
1304
*(Released Thu, 17 Dec 2009)*
1305

    
1306
- Fix security issue due to missing validation of iallocator names; this
1307
  allows local and remote execution of arbitrary executables
1308
- Fix failure of gnt-node list during instance removal
1309
- Ship the RAPI documentation in the archive
1310

    
1311

    
1312
Version 2.0.4
1313
-------------
1314

    
1315
*(Released Wed, 30 Sep 2009)*
1316

    
1317
- Fixed many wrong messages
1318
- Fixed a few bugs related to the locking library
1319
- Fixed MAC checking at instance creation time
1320
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
1321
- Fixed a few issues related to signal handling in both daemons and
1322
  scripts
1323
- Fixed the example startup script provided
1324
- Fixed insserv dependencies in the example startup script (patch from
1325
  Debian)
1326
- Fixed handling of drained nodes in the iallocator framework
1327
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
1328
  #528618)
1329
- Fixed error related to invalid job IDs in job polling
1330
- Fixed job/opcode persistence on unclean master shutdown
1331
- Fixed handling of partial job processing after unclean master
1332
  shutdown
1333
- Fixed error reporting from LUs, previously all errors were converted
1334
  into execution errors
1335
- Fixed error reporting from burnin
1336
- Decreased significantly the memory usage of the job queue
1337
- Optimised slightly multi-job submission
1338
- Optimised slightly opcode loading
1339
- Backported the multi-job submit framework from the development
1340
  branch; multi-instance start and stop should be faster
1341
- Added script to clean archived jobs after 21 days; this will reduce
1342
  the size of the queue directory
1343
- Added some extra checks in disk size tracking
1344
- Added an example ethers hook script
1345
- Added a cluster parameter that prevents Ganeti from modifying of
1346
  /etc/hosts
1347
- Added more node information to RAPI responses
1348
- Added a ``gnt-job watch`` command that allows following the ouput of a
1349
  job
1350
- Added a bind-address option to ganeti-rapi
1351
- Added more checks to the configuration verify
1352
- Enhanced the burnin script such that some operations can be retried
1353
  automatically
1354
- Converted instance reinstall to multi-instance model
1355

    
1356

    
1357
Version 2.0.3
1358
-------------
1359

    
1360
*(Released Fri, 7 Aug 2009)*
1361

    
1362
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
1363
  to allow using the pre-2.0.2 behaviour in activation, if any existing
1364
  instances have mismatched disk sizes in the configuration
1365
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
1366
  any configuration mismatches for disk sizes
1367
- Added ``gnt-master cluste-failover --no-voting`` to allow master
1368
  failover to work on two-node clusters
1369
- Fixed the ``--net`` option of ``gnt-backup import``, which was
1370
  unusable
1371
- Fixed detection of OS script errors in ``gnt-backup export``
1372
- Fixed exit code of ``gnt-backup export``
1373

    
1374

    
1375
Version 2.0.2
1376
-------------
1377

    
1378
*(Released Fri, 17 Jul 2009)*
1379

    
1380
- Added experimental support for stripped logical volumes; this should
1381
  enhance performance but comes with a higher complexity in the block
1382
  device handling; stripping is only enabled when passing
1383
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
1384
  affected even in the non-stripped mode
1385
- Improved resiliency against transient failures at the end of DRBD
1386
  resyncs, and in general of DRBD resync checks
1387
- Fixed a couple of issues with exports and snapshot errors
1388
- Fixed a couple of issues in instance listing
1389
- Added display of the disk size in ``gnt-instance info``
1390
- Fixed checking for valid OSes in instance creation
1391
- Fixed handling of the "vcpus" parameter in instance listing and in
1392
  general of invalid parameters
1393
- Fixed http server library, and thus RAPI, to handle invalid
1394
  username/password combinations correctly; this means that now they
1395
  report unauthorized for queries too, not only for modifications,
1396
  allowing earlier detect of configuration problems
1397
- Added a new "role" node list field, equivalent to the master/master
1398
  candidate/drained/offline flags combinations
1399
- Fixed cluster modify and changes of candidate pool size
1400
- Fixed cluster verify error messages for wrong files on regular nodes
1401
- Fixed a couple of issues with node demotion from master candidate role
1402
- Fixed node readd issues
1403
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
1404
- Added a new ``--no-voting`` option for masterfailover to fix failover
1405
  on two-nodes clusters when the former master node is unreachable
1406
- Added instance reinstall over RAPI
1407

    
1408

    
1409
Version 2.0.1
1410
-------------
1411

    
1412
*(Released Tue, 16 Jun 2009)*
1413

    
1414
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
1415
  allow re-adding the start in single-user option (regression from 1.2)
1416
- the watcher writes the instance status to a file, to allow monitoring
1417
  to report the instance status (from the master) based on cached
1418
  results of the watcher's queries; while this can get stale if the
1419
  watcher is being locked due to other work on the cluster, this is
1420
  still an improvement
1421
- the watcher now also restarts the node daemon and the rapi daemon if
1422
  they died
1423
- fixed the watcher to handle full and drained queue cases
1424
- hooks export more instance data in the environment, which helps if
1425
  hook scripts need to take action based on the instance's properties
1426
  (no longer need to query back into ganeti)
1427
- instance failovers when the instance is stopped do not check for free
1428
  RAM, so that failing over a stopped instance is possible in low memory
1429
  situations
1430
- rapi uses queries for tags instead of jobs (for less job traffic), and
1431
  for cluster tags it won't talk to masterd at all but read them from
1432
  ssconf
1433
- a couple of error handling fixes in RAPI
1434
- drbd handling: improved the error handling of inconsistent disks after
1435
  resync to reduce the frequency of "there are some degraded disks for
1436
  this instance" messages
1437
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
1438
  error handling path called a wrong function name)
1439

    
1440

    
1441
Version 2.0.0 final
1442
-------------------
1443

    
1444
*(Released Wed, 27 May 2009)*
1445

    
1446
- no changes from rc5
1447

    
1448

    
1449
Version 2.0 release candidate 5
1450
-------------------------------
1451

    
1452
*(Released Wed, 20 May 2009)*
1453

    
1454
- fix a couple of bugs (validation, argument checks)
1455
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
1456
- some small improvements to RAPI and IAllocator
1457
- make watcher automatically start the master daemon if down
1458

    
1459

    
1460
Version 2.0 release candidate 4
1461
-------------------------------
1462

    
1463
*(Released Mon, 27 Apr 2009)*
1464

    
1465
- change the OS list to not require locks; this helps with big clusters
1466
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
1467
  volume group is broken
1468
- ``gnt-instance info``, without any arguments, doesn't run for all
1469
  instances anymore; either pass ``--all`` or pass the desired
1470
  instances; this helps against mistakes on big clusters where listing
1471
  the information for all instances takes a long time
1472
- miscellaneous doc and man pages fixes
1473

    
1474

    
1475
Version 2.0 release candidate 3
1476
-------------------------------
1477

    
1478
*(Released Wed, 8 Apr 2009)*
1479

    
1480
- Change the internal locking model of some ``gnt-node`` commands, in
1481
  order to reduce contention (and blocking of master daemon) when
1482
  batching many creation/reinstall jobs
1483
- Fixes to Xen soft reboot
1484
- No longer build documentation at build time, instead distribute it in
1485
  the archive, in order to reduce the need for the whole docbook/rst
1486
  toolchains
1487

    
1488

    
1489
Version 2.0 release candidate 2
1490
-------------------------------
1491

    
1492
*(Released Fri, 27 Mar 2009)*
1493

    
1494
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
1495
- Fix watcher startup sequence, improves the behaviour of busy clusters
1496
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
1497
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
1498
  bind address and other places
1499
- Some documentation fixes and updates
1500

    
1501

    
1502
Version 2.0 release candidate 1
1503
-------------------------------
1504

    
1505
*(Released Mon, 2 Mar 2009)*
1506

    
1507
- More documentation updates, now all docs should be more-or-less
1508
  up-to-date
1509
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
1510
  etc.)
1511
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
1512
  and KVM)
1513
- Fix an issue related to $libdir/run/ganeti and cluster creation
1514

    
1515

    
1516
Version 2.0 beta 2
1517
------------------
1518

    
1519
*(Released Thu, 19 Feb 2009)*
1520

    
1521
- Xen PVM and KVM have switched the default value for the instance root
1522
  disk to the first partition on the first drive, instead of the whole
1523
  drive; this means that the OS installation scripts must be changed
1524
  accordingly
1525
- Man pages have been updated
1526
- RAPI has been switched by default to HTTPS, and the exported functions
1527
  should all work correctly
1528
- RAPI v1 has been removed
1529
- Many improvements to the KVM hypervisor
1530
- Block device errors are now better reported
1531
- Many other bugfixes and small improvements
1532

    
1533

    
1534
Version 2.0 beta 1
1535
------------------
1536

    
1537
*(Released Mon, 26 Jan 2009)*
1538

    
1539
- Version 2 is a general rewrite of the code and therefore the
1540
  differences are too many to list, see the design document for 2.0 in
1541
  the ``doc/`` subdirectory for more details
1542
- In this beta version there is not yet a migration path from 1.2 (there
1543
  will be one in the final 2.0 release)
1544
- A few significant changes are:
1545

    
1546
  - all commands are executed by a daemon (``ganeti-masterd``) and the
1547
    various ``gnt-*`` commands are just front-ends to it
1548
  - all the commands are entered into, and executed from a job queue,
1549
    see the ``gnt-job(8)`` manpage
1550
  - the RAPI daemon supports read-write operations, secured by basic
1551
    HTTP authentication on top of HTTPS
1552
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
1553
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
1554
    to migrate to DRBD 8 first while still running Ganeti 1.2)
1555
  - DRBD devices are using statically allocated minor numbers, which
1556
    will be assigned to existing instances during the migration process
1557
  - there is support for both Xen PVM and Xen HVM instances running on
1558
    the same cluster
1559
  - KVM virtualization is supported too
1560
  - file-based storage has been implemented, which means that it is
1561
    possible to run the cluster without LVM and DRBD storage, for
1562
    example using a shared filesystem exported from shared storage (and
1563
    still have live migration)
1564

    
1565

    
1566
Version 1.2.7
1567
-------------
1568

    
1569
*(Released Tue, 13 Jan 2009)*
1570

    
1571
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
1572
- Reuse the old instance mac address by default on instance import, if
1573
  the instance name is the same.
1574
- Handle situations in which the node info rpc returns incomplete
1575
  results (issue 46)
1576
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
1577
- Improved version of batcher:
1578

    
1579
  - state file support
1580
  - instance mac address support
1581
  - support for HVM clusters/instances
1582

    
1583
- Add an option to show the number of cpu sockets and nodes in
1584
  ``gnt-node list``
1585
- Support OSes that handle more than one version of the OS api (but do
1586
  not change the current API in any other way)
1587
- Fix ``gnt-node migrate``
1588
- ``gnt-debug`` man page
1589
- Fixes various more typos and small issues
1590
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
1591

    
1592

    
1593
Version 1.2.6
1594
-------------
1595

    
1596
*(Released Wed, 24 Sep 2008)*
1597

    
1598
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
1599
  type of disk exported to fully virtualized instances.
1600
- provide access to the serial console of HVM instances
1601
- instance auto_balance flag, set by default. If turned off it will
1602
  avoid warnings on cluster verify if there is not enough memory to fail
1603
  over an instance. in the future it will prevent automatically failing
1604
  it over when we will support that.
1605
- batcher tool for instance creation, see ``tools/README.batcher``
1606
- ``gnt-instance reinstall --select-os`` to interactively select a new
1607
  operating system when reinstalling an instance.
1608
- when changing the memory amount on instance modify a check has been
1609
  added that the instance will be able to start. also warnings are
1610
  emitted if the instance will not be able to fail over, if auto_balance
1611
  is true.
1612
- documentation fixes
1613
- sync fields between ``gnt-instance list/modify/add/import``
1614
- fix a race condition in drbd when the sync speed was set after giving
1615
  the device a remote peer.
1616

    
1617

    
1618
Version 1.2.5
1619
-------------
1620

    
1621
*(Released Tue, 22 Jul 2008)*
1622

    
1623
- note: the allowed size and number of tags per object were reduced
1624
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
1625
- fixed twisted 8.x compatibility
1626
- fixed ``gnt-instance replace-disks`` with iallocator
1627
- add TCP keepalives on twisted connections to detect restarted nodes
1628
- disk increase support, see ``gnt-instance grow-disk``
1629
- implement bulk node/instance query for RAPI
1630
- add tags in node/instance listing (optional)
1631
- experimental migration (and live migration) support, read the man page
1632
  for ``gnt-instance migrate``
1633
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
1634
  has some small improvements in handling its state file
1635

    
1636

    
1637
Version 1.2.4
1638
-------------
1639

    
1640
*(Released Fri, 13 Jun 2008)*
1641

    
1642
- Experimental readonly, REST-based remote API implementation;
1643
  automatically started on master node, TCP port 5080, if enabled by
1644
  ``--enable-rapi`` parameter to configure script.
1645
- Instance allocator support. Add and import instance accept a
1646
  ``--iallocator`` parameter, and call that instance allocator to decide
1647
  which node to use for the instance. The iallocator document describes
1648
  what's expected from an allocator script.
1649
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
1650
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
1651
  node is lost there is still enough memory to fail over the instances
1652
  that reside on it.
1653
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
1654
  ``gnt-cluster verify``, to check for site-specific compliance. All the
1655
  hooks will run, and their output, if any, will be displayed. Any
1656
  failing hook will make the verification return an error value.
1657
- ``gnt-cluster verify`` now checks that its peers are reachable on the
1658
  primary and secondary interfaces
1659
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
1660
  that is still declared as part of the cluster and has failed.
1661
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
1662
  specifying output fields, that just adds the chosen fields to the
1663
  default ones.
1664
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
1665
  export from the filesystem.
1666
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
1667
  have been added. Using them you can enable/disable acpi and pae
1668
  support, and specify a path for a cd image to be exported to the
1669
  instance. These parameters as the name suggest only work on HVM
1670
  clusters.
1671
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
1672
  PAE support will be set to the previously hardcoded values, but the
1673
  (previously hardcoded) path to the CDROM ISO image will be unset and
1674
  if required, needs to be set manually with ``gnt-instance modify``
1675
  after the upgrade.
1676
- The address to which an instance's VNC console is bound is now
1677
  selectable per-instance, rather than being cluster wide. Of course
1678
  this only applies to instances controlled via VNC, so currently just
1679
  applies to HVM clusters.
1680

    
1681

    
1682
Version 1.2.3
1683
-------------
1684

    
1685
*(Released Mon, 18 Feb 2008)*
1686

    
1687
- more tweaks to the disk activation code (especially helpful for DRBD)
1688
- change the default ``gnt-instance list`` output format, now there is
1689
  one combined status field (see the manpage for the exact values this
1690
  field will have)
1691
- some more fixes for the mac export to hooks change
1692
- make Ganeti not break with DRBD 8.2.x (which changed the version
1693
  format in ``/proc/drbd``) (issue 24)
1694
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
1695
  template, allowing migration from DRBD0.7+MD to DRBD8
1696

    
1697

    
1698
Version 1.2.2
1699
-------------
1700

    
1701
*(Released Wed, 30 Jan 2008)*
1702

    
1703
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
1704
  support (issue 23)
1705
- add command aliases infrastructure and a few aliases
1706
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
1707
  man pages and the ``--help`` option of ``gnt-node
1708
  list``/``gnt-instance list``
1709
- fix ``gnt-backup list`` with down nodes (issue 21)
1710
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
1711
- fix the dist archive and add a check for including svn/git files in
1712
  the future
1713
- some developer-related changes: improve the burnin and the QA suite,
1714
  add an upload script for testing during development
1715

    
1716

    
1717
Version 1.2.1
1718
-------------
1719

    
1720
*(Released Wed, 16 Jan 2008)*
1721

    
1722
- experimental HVM support, read the install document, section
1723
  "Initializing the cluster"
1724
- allow for the PVM hypervisor per-instance kernel and initrd paths
1725
- add a new command ``gnt-cluster verify-disks`` which uses a new
1726
  algorithm to improve the reconnection of the DRBD pairs if the device
1727
  on the secondary node has gone away
1728
- make logical volume code auto-activate LVs at disk activation time
1729
- slightly improve the speed of activating disks
1730
- allow specification of the MAC address at instance creation time, and
1731
  changing it later via ``gnt-instance modify``
1732
- fix handling of external commands that generate lots of output on
1733
  stderr
1734
- update documentation with regard to minimum version of DRBD8 supported
1735

    
1736

    
1737
Version 1.2.0
1738
-------------
1739

    
1740
*(Released Tue, 4 Dec 2007)*
1741

    
1742
- Log the ``xm create`` output to the node daemon log on failure (to
1743
  help diagnosing the error)
1744
- In debug mode, log all external commands output if failed to the logs
1745
- Change parsing of lvm commands to ignore stderr
1746

    
1747

    
1748
Version 1.2b3
1749
-------------
1750

    
1751
*(Released Wed, 28 Nov 2007)*
1752

    
1753
- Another round of updates to the DRBD 8 code to deal with more failures
1754
  in the replace secondary node operation
1755
- Some more logging of failures in disk operations (lvm, drbd)
1756
- A few documentation updates
1757
- QA updates
1758

    
1759

    
1760
Version 1.2b2
1761
-------------
1762

    
1763
*(Released Tue, 13 Nov 2007)*
1764

    
1765
- Change configuration file format from Python's Pickle to JSON.
1766
  Upgrading is possible using the cfgupgrade utility.
1767
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
1768
  faster replace disks and is more stable (DRBD 8 has many improvements
1769
  compared to DRBD 0.7)
1770
- Added command line tags support (see man pages for ``gnt-instance``,
1771
  ``gnt-node``, ``gnt-cluster``)
1772
- Added instance rename support
1773
- Added multi-instance startup/shutdown
1774
- Added cluster rename support
1775
- Added ``gnt-node evacuate`` to simplify some node operations
1776
- Added instance reboot operation that can speedup reboot as compared to
1777
  stop and start
1778
- Soften the requirement that hostnames are in FQDN format
1779
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
1780
  reboots
1781
- Removed dependency on debian's patched fping that uses the
1782
  non-standard ``-S`` option
1783
- Now the OS definitions are searched for in multiple, configurable
1784
  paths (easier for distros to package)
1785
- Some changes to the hooks infrastructure (especially the new
1786
  post-configuration update hook)
1787
- Other small bugfixes
1788

    
1789
.. vim: set textwidth=72 syntax=rst :
1790
.. Local Variables:
1791
.. mode: rst
1792
.. fill-column: 72
1793
.. End: