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1
News
2
====
3

    
4
Version 2.4.3
5
-------------
6

    
7
*(unreleased)*
8

    
9
- Added a new parameter to instance stop/start called ``--no-remember``
10
  that will make the state change to not be remembered
11

    
12

    
13
Version 2.4.2
14
-------------
15

    
16
*(Released Thu, 12 May 2011)*
17

    
18
Many bug-fixes and a few new small features:
19

    
20
- Fixed a bug related to log opening failures
21
- Fixed a bug in instance listing with orphan instances
22
- Fixed a bug which prevented resetting the cluster-level node parameter
23
  ``oob_program`` to the default
24
- Many fixes related to the ``cluster-merge`` tool
25
- Fixed a race condition in the lock monitor, which caused failures
26
  during (at least) creation of many instances in parallel
27
- Improved output for gnt-job info
28
- Removed the quiet flag on some ssh calls which prevented debugging
29
  failures
30
- Improved the N+1 failure messages in cluster verify by actually
31
  showing the memory values (needed and available)
32
- Increased lock attempt timeouts so that when executing long operations
33
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
34
  too early and thus prevent the use of the 'fair' mechanism
35
- Changed instance query data (``gnt-instance info``) to not acquire
36
  locks unless needed, thus allowing its use on locked instance if only
37
  static information is asked for
38
- Improved behaviour with filesystems that do not support rename on an
39
  opened file
40
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
41
  kept locks on all nodes during the wipe, which is unneeded
42
- Fixed ``gnt-watcher`` handling of errors during hooks execution
43
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
44
  10GiB) which caused the wipe to fail right at the end in some cases
45
- Fixed master IP activation when doing master failover with no-voting
46
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
47
  the master node itself
48
- Fixed potential data-loss in under disk full conditions, where Ganeti
49
  wouldn't check correctly the return code and would consider
50
  partially-written files 'correct'
51
- Fixed bug related to multiple VGs and DRBD disk replacing
52
- Added new disk parameter ``metavg`` that allows placement of the meta
53
  device for DRBD in a different volume group
54
- Fixed error handling in the node daemon when the system libc doesn't
55
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
56
- Fixed lock release during replace-disks, which kept cluster-wide locks
57
  when doing disk replaces with an iallocator script
58
- Added check for missing bridges in cluster verify
59
- Handle EPIPE errors while writing to the terminal better, so that
60
  piping the output to e.g. ``less`` doesn't cause a backtrace
61
- Fixed rare case where a ^C during Luxi calls could have been
62
  interpreted as server errors, instead of simply terminating
63
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
64
  assign-nodes``)
65
- Added a few more parameters to the KVM hypervisor, allowing a second
66
  CDROM, custom disk type for CDROMs and a floppy image
67
- Removed redundant message in instance rename when the name is given
68
  already as a FQDN
69
- Added option to ``gnt-instance recreate-disks`` to allow creating the
70
  disks on new nodes, allowing recreation when the original instance
71
  nodes are completely gone
72
- Added option when converting disk templates to DRBD to skip waiting
73
  for the resync, in order to make the instance available sooner
74
- Added two new variables to the OS scripts environment (containing the
75
  instance's nodes)
76
- Made the root_path and optional parameter for the xen-pvm hypervisor,
77
  to allow use of ``pvgrub`` as bootloader
78
- Changed the instance memory modifications to only check out-of-memory
79
  conditions on memory increases, and turned the secondary node warnings
80
  into errors (they can still be overridden via ``--force``)
81
- Fixed the handling of a corner case when the Python installation gets
82
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
83
  to execute a command that doesn't exist
84
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
85
  node of the instance returned failures during instance shutdown; this
86
  adds the option ``--ignore-consistency`` to gnt-instance move
87

    
88
And as usual, various improvements to the error messages, documentation
89
and man pages.
90

    
91
Version 2.4.1
92
-------------
93

    
94
*(Released Wed, 09 Mar 2011)*
95

    
96
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
97
the RAPI users file if run twice (even with ``-dry-run``).
98

    
99
The release fixes that bug (nothing else changed).
100

    
101

    
102
Version 2.4.0
103
-------------
104

    
105
*(Released Mon, 07 Mar 2011)*
106

    
107
Final 2.4.0 release. Just a few small fixes:
108

    
109
- Fixed RAPI node evacuate
110
- Fixed the kvm-ifup script
111
- Fixed internal error handling for special job cases
112
- Updated man page to specify the escaping feature for options
113

    
114

    
115
Version 2.4.0 rc3
116
-----------------
117

    
118
*(Released Mon, 28 Feb 2011)*
119

    
120
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
121
that this feature wiped the disks of the wrong instance, leading to loss
122
of data.
123

    
124
Other changes:
125

    
126
- Fixed title of query field containing instance name
127
- Expanded the glossary in the documentation
128
- Fixed one unittest (internal issue)
129

    
130

    
131
Version 2.4.0 rc2
132
-----------------
133

    
134
*(Released Mon, 21 Feb 2011)*
135

    
136
A number of bug fixes plus just a couple functionality changes.
137

    
138
On the user-visible side, the ``gnt-* list`` command output has changed
139
with respect to "special" field states. The current rc1 style of display
140
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
141
the default output mode special fields states are displayed as follows:
142

    
143
- Offline resource: ``*``
144
- Unavailable/not applicable: ``-``
145
- Data missing (RPC failure): ``?``
146
- Unknown field: ``??``
147

    
148
Another user-visible change is the addition of ``--force-join`` to
149
``gnt-node add``.
150

    
151
As for bug fixes:
152

    
153
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
154
- Fixed regression in RAPI/instance reinstall where all parameters were
155
  required (instead of optional)
156
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
157
- Fixed iallocator usage (offline nodes were not considered offline)
158
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
159
- Fixed hypervisor and OS parameter validation with respect to
160
  non-vm_capable nodes
161
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
162
  cosmetic)
163
- Fixed ``tools/listrunner`` with respect to agent-based usage
164

    
165

    
166
Version 2.4.0 rc1
167
-----------------
168

    
169
*(Released Fri,  4 Feb 2011)*
170

    
171
Many changes and fixes since the beta1 release. While there were some
172
internal changes, the code has been mostly stabilised for the RC
173
release.
174

    
175
Note: the dumb allocator was removed in this release, as it was not kept
176
up-to-date with the IAllocator protocol changes. It is recommended to
177
use the ``hail`` command from the ganeti-htools package.
178

    
179
Note: the 2.4 and up versions of Ganeti are not compatible with the
180
0.2.x branch of ganeti-htools. You need to upgrade to
181
ganeti-htools-0.3.0 (or later).
182

    
183
Regressions fixed from 2.3
184
~~~~~~~~~~~~~~~~~~~~~~~~~~
185

    
186
- Fixed the ``gnt-cluster verify-disks`` command
187
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
188
  serially on nodes)
189
- Fixed disk adoption breakage
190
- Fixed wrong headers in instance listing for field aliases
191

    
192
Other bugs fixed
193
~~~~~~~~~~~~~~~~
194

    
195
- Fixed corner case in KVM handling of NICs
196
- Fixed many cases of wrong handling of non-vm_capable nodes
197
- Fixed a bug where a missing instance symlink was not possible to
198
  recreate with any ``gnt-*`` command (now ``gnt-instance
199
  activate-disks`` does it)
200
- Fixed the volume group name as reported by ``gnt-cluster
201
  verify-disks``
202
- Increased timeouts for the import-export code, hopefully leading to
203
  fewer aborts due network or instance timeouts
204
- Fixed bug in ``gnt-node list-storage``
205
- Fixed bug where not all daemons were started on cluster
206
  initialisation, but only at the first watcher run
207
- Fixed many bugs in the OOB implementation
208
- Fixed watcher behaviour in presence of instances with offline
209
  secondaries
210
- Fixed instance list output for instances running on the wrong node
211
- a few fixes to the cluster-merge tool, but it still cannot merge
212
  multi-node groups (currently it is not recommended to use this tool)
213

    
214

    
215
Improvements
216
~~~~~~~~~~~~
217

    
218
- Improved network configuration for the KVM hypervisor
219
- Added e1000 as a supported NIC for Xen-HVM
220
- Improved the lvmstrap tool to also be able to use partitions, as
221
  opposed to full disks
222
- Improved speed of disk wiping (the cluster parameter
223
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
224
  of instance creations
225
- Added documentation for the OS parameters
226
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
227
  hypervisor is not responding
228
- Added display of blacklisted and hidden OS information in
229
  ``gnt-cluster info``
230
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
231
  NIC and node parameters, which might create problems with currently
232
  invalid (but undetected) configuration files, but prevents validation
233
  failures when unrelated parameters are modified
234
- Changed cluster initialisation to wait for the master daemon to become
235
  available
236
- Expanded the RAPI interface:
237

    
238
  - Added config redistribution resource
239
  - Added activation/deactivation of instance disks
240
  - Added export of console information
241

    
242
- Implemented log file reopening on SIGHUP, which allows using
243
  logrotate(8) for the Ganeti log files
244
- Added a basic OOB helper script as an example
245

    
246

    
247
Version 2.4.0 beta1
248
-------------------
249

    
250
*(Released Fri, 14 Jan 2011)*
251

    
252
User-visible
253
~~~~~~~~~~~~
254

    
255
- Fixed timezone issues when formatting timestamps
256
- Added support for node groups, available via ``gnt-group`` and other
257
  commands
258
- Added out-of-band framework and management, see :doc:`design
259
  document <design-oob>`
260
- Removed support for roman numbers from ``gnt-node list`` and
261
  ``gnt-instance list``.
262
- Allowed modification of master network interface via ``gnt-cluster
263
  modify --master-netdev``
264
- Accept offline secondaries while shutting down instance disks
265
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
266
- Added support for multiple LVM volume groups
267
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
268
  requested
269
- Added commands to list available fields:
270

    
271
  - ``gnt-node list-fields``
272
  - ``gnt-group list-fields``
273
  - ``gnt-instance list-fields``
274

    
275
- Updated documentation and man pages
276

    
277
Integration
278
~~~~~~~~~~~
279

    
280
- Moved ``rapi_users`` file into separate directory, now named
281
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
282
  symlink
283
- Added new tool for running commands on many machines,
284
  ``tools/ganeti-listrunner``
285
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
286
  improving the ``gnt-instance console`` output
287
- Allowed customisation of disk index separator at ``configure`` time
288
- Export node group allocation policy to :doc:`iallocator <iallocator>`
289
- Added support for non-partitioned md disks in ``lvmstrap``
290
- Added script to gracefully power off KVM instances
291
- Split ``utils`` module into smaller parts
292
- Changed query operations to return more detailed information, e.g.
293
  whether an information is unavailable due to an offline node. To use
294
  this new functionality, the LUXI call ``Query`` must be used. Field
295
  information is now stored by the master daemon and can be retrieved
296
  using ``QueryFields``. Instances, nodes and groups can also be queried
297
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
298
  exposed via RAPI). The following commands make use of this
299
  infrastructure change:
300

    
301
  - ``gnt-group list``
302
  - ``gnt-group list-fields``
303
  - ``gnt-node list``
304
  - ``gnt-node list-fields``
305
  - ``gnt-instance list``
306
  - ``gnt-instance list-fields``
307
  - ``gnt-debug locks``
308

    
309
Remote API
310
~~~~~~~~~~
311

    
312
- New RAPI resources (see :doc:`rapi`):
313

    
314
  - ``/2/modify``
315
  - ``/2/groups``
316
  - ``/2/groups/[group_name]``
317
  - ``/2/groups/[group_name]/assign-nodes``
318
  - ``/2/groups/[group_name]/modify``
319
  - ``/2/groups/[group_name]/rename``
320
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
321

    
322
- RAPI changes:
323

    
324
  - Implemented ``no_install`` for instance creation
325
  - Implemented OS parameters for instance reinstallation, allowing
326
    use of special settings on reinstallation (e.g. for preserving data)
327

    
328
Misc
329
~~~~
330

    
331
- Added IPv6 support in import/export
332
- Pause DRBD synchronization while wiping disks on instance creation
333
- Updated unittests and QA scripts
334
- Improved network parameters passed to KVM
335
- Converted man pages from docbook to reStructuredText
336

    
337

    
338
Version 2.3.1
339
-------------
340

    
341
*(Released Mon, 20 Dec 2010)*
342

    
343
Released version 2.3.1~rc1 without any changes.
344

    
345

    
346
Version 2.3.1 rc1
347
-----------------
348

    
349
*(Released Wed, 1 Dec 2010)*
350

    
351
- impexpd: Disable OpenSSL compression in socat if possible (backport
352
  from master, commit e90739d625b, see :doc:`installation guide
353
  <install-quick>` for details)
354
- Changed unittest coverage report to exclude test scripts
355
- Added script to check version format
356

    
357

    
358
Version 2.3.0
359
-------------
360

    
361
*(Released Wed, 1 Dec 2010)*
362

    
363
Released version 2.3.0~rc1 without any changes.
364

    
365

    
366
Version 2.3.0 rc1
367
-----------------
368

    
369
*(Released Fri, 19 Nov 2010)*
370

    
371
A number of bugfixes and documentation updates:
372

    
373
- Update ganeti-os-interface documentation
374
- Fixed a bug related to duplicate MACs or similar items which should be
375
  unique
376
- Fix breakage in OS state modify
377
- Reinstall instance: disallow offline secondaries (fixes bug related to
378
  OS changing but reinstall failing)
379
- plus all the other fixes between 2.2.1 and 2.2.2
380

    
381

    
382
Version 2.3.0 rc0
383
-----------------
384

    
385
*(Released Tue, 2 Nov 2010)*
386

    
387
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
388
- Fixed master failover race with watcher
389
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
390
  configuration
391
- Accept previously stopped instance for export with instance removal
392
- Simplify and extend the environment variables for instance OS scripts
393
- Added new node flags, ``master_capable`` and ``vm_capable``
394
- Added optional instance disk wiping prior during allocation. This is a
395
  cluster-wide option and can be set/modified using
396
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
397
- Added IPv6 support, see :doc:`design document <design-2.3>` and
398
  :doc:`install-quick`
399
- Added a new watcher option (``--ignore-pause``)
400
- Added option to ignore offline node on instance start/stop
401
  (``--ignore-offline``)
402
- Allow overriding OS parameters with ``gnt-instance reinstall``
403
- Added ability to change node's secondary IP address using ``gnt-node
404
  modify``
405
- Implemented privilege separation for all daemons except
406
  ``ganeti-noded``, see ``configure`` options
407
- Complain if an instance's disk is marked faulty in ``gnt-cluster
408
  verify``
409
- Implemented job priorities (see ``ganeti(7)`` manpage)
410
- Ignore failures while shutting down instances during failover from
411
  offline node
412
- Exit daemon's bootstrap process only once daemon is ready
413
- Export more information via ``LUInstanceQuery``/remote API
414
- Improved documentation, QA and unittests
415
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
416
  restart if the file was created or changed
417
- Added LUXI protocol version sent with each request and response,
418
  allowing detection of server/client mismatches
419
- Moved the Python scripts among gnt-* and ganeti-* into modules
420
- Moved all code related to setting up SSH to an external script,
421
  ``setup-ssh``
422
- Infrastructure changes for node group support in future versions
423

    
424

    
425
Version 2.2.2
426
-------------
427

    
428
*(Released Fri, 19 Nov 2010)*
429

    
430
A few small bugs fixed, and some improvements to the build system:
431

    
432
- Fix documentation regarding conversion to drbd
433
- Fix validation of parameters in cluster modify (``gnt-cluster modify
434
  -B``)
435
- Fix error handling in node modify with multiple changes
436
- Allow remote imports without checked names
437

    
438

    
439
Version 2.2.1
440
-------------
441

    
442
*(Released Tue, 19 Oct 2010)*
443

    
444
- Disable SSL session ID cache in RPC client
445

    
446

    
447
Version 2.2.1 rc1
448
-----------------
449

    
450
*(Released Thu, 14 Oct 2010)*
451

    
452
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
453
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
454
  with GnuTLS
455
- Fix problems with interaction between Curl and Python's HTTP server,
456
  resulting in increased speed in many RPC calls
457
- Improve our release script to prevent breakage with older aclocal and
458
  Python 2.6
459

    
460

    
461
Version 2.2.1 rc0
462
-----------------
463

    
464
*(Released Thu, 7 Oct 2010)*
465

    
466
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
467
  value retrieved from master
468
- Added support for blacklisted or hidden OS definitions
469
- Added simple lock monitor (accessible via (``gnt-debug locks``)
470
- Added support for -mem-path in KVM hypervisor abstraction layer
471
- Allow overriding instance parameters in tool for inter-cluster
472
  instance moves (``tools/move-instance``)
473
- Improved opcode summaries (e.g. in ``gnt-job list``)
474
- Improve consistency of OS listing by sorting it
475
- Documentation updates
476

    
477

    
478
Version 2.2.0.1
479
---------------
480

    
481
*(Released Fri, 8 Oct 2010)*
482

    
483
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
484

    
485

    
486
Version 2.2.0
487
-------------
488

    
489
*(Released Mon, 4 Oct 2010)*
490

    
491
- Fixed regression in ``gnt-instance rename``
492

    
493

    
494
Version 2.2.0 rc2
495
-----------------
496

    
497
*(Released Wed, 22 Sep 2010)*
498

    
499
- Fixed OS_VARIANT variable for OS scripts
500
- Fixed cluster tag operations via RAPI
501
- Made ``setup-ssh`` exit with non-zero code if an error occurred
502
- Disabled RAPI CA checks in watcher
503

    
504

    
505
Version 2.2.0 rc1
506
-----------------
507

    
508
*(Released Mon, 23 Aug 2010)*
509

    
510
- Support DRBD versions of the format "a.b.c.d"
511
- Updated manpages
512
- Re-introduce support for usage from multiple threads in RAPI client
513
- Instance renames and modify via RAPI
514
- Work around race condition between processing and archival in job
515
  queue
516
- Mark opcodes following failed one as failed, too
517
- Job field ``lock_status`` was removed due to difficulties making it
518
  work with the changed job queue in Ganeti 2.2; a better way to monitor
519
  locks is expected for a later 2.2.x release
520
- Fixed dry-run behaviour with many commands
521
- Support ``ssh-agent`` again when adding nodes
522
- Many additional bugfixes
523

    
524

    
525
Version 2.2.0 rc0
526
-----------------
527

    
528
*(Released Fri, 30 Jul 2010)*
529

    
530
Important change: the internal RPC mechanism between Ganeti nodes has
531
changed from using a home-grown http library (based on the Python base
532
libraries) to use the PycURL library. This requires that PycURL is
533
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
534
against GnuTLS by default. cURL's support for GnuTLS had known issues
535
before cURL 7.21.0 and we recommend using the latest cURL release or
536
linking against OpenSSL. Most other distributions already link PycURL
537
and cURL against OpenSSL. The command::
538

    
539
  python -c 'import pycurl; print pycurl.version'
540

    
541
can be used to determine the libraries PycURL and cURL are linked
542
against.
543

    
544
Other significant changes:
545

    
546
- Rewrote much of the internals of the job queue, in order to achieve
547
  better parallelism; this decouples job query operations from the job
548
  processing, and it should allow much nicer behaviour of the master
549
  daemon under load, and it also has uncovered some long-standing bugs
550
  related to the job serialisation (now fixed)
551
- Added a default iallocator setting to the cluster parameters,
552
  eliminating the need to always pass nodes or an iallocator for
553
  operations that require selection of new node(s)
554
- Added experimental support for the LXC virtualization method
555
- Added support for OS parameters, which allows the installation of
556
  instances to pass parameter to OS scripts in order to customise the
557
  instance
558
- Added a hypervisor parameter controlling the migration type (live or
559
  non-live), since hypervisors have various levels of reliability; this
560
  has renamed the 'live' parameter to 'mode'
561
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
562
  logical volumes, meaning that cluster verify will ignore them and not
563
  flag their presence as errors
564
- The watcher will now reset the error count for failed instances after
565
  8 hours, thus allowing self-healing if the problem that caused the
566
  instances to be down/fail to start has cleared in the meantime
567
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
568
  check for, and warn, if the drbd module parameter ``usermode_helper``
569
  is not consistent with the cluster-wide setting; this is needed to
570
  make diagnose easier of failed drbd creations
571
- Started adding base IPv6 support, but this is not yet
572
  enabled/available for use
573
- Rename operations (cluster, instance) will now return the new name,
574
  which is especially useful if a short name was passed in
575
- Added support for instance migration in RAPI
576
- Added a tool to pre-configure nodes for the SSH setup, before joining
577
  them to the cluster; this will allow in the future a simplified model
578
  for node joining (but not yet fully enabled in 2.2); this needs the
579
  paramiko python library
580
- Fixed handling of name-resolving errors
581
- Fixed consistency of job results on the error path
582
- Fixed master-failover race condition when executed multiple times in
583
  sequence
584
- Fixed many bugs related to the job queue (mostly introduced during the
585
  2.2 development cycle, so not all are impacting 2.1)
586
- Fixed instance migration with missing disk symlinks
587
- Fixed handling of unknown jobs in ``gnt-job archive``
588
- And many other small fixes/improvements
589

    
590
Internal changes:
591

    
592
- Enhanced both the unittest and the QA coverage
593
- Switched the opcode validation to a generic model, and extended the
594
  validation to all opcode parameters
595
- Changed more parts of the code that write shell scripts to use the
596
  same class for this
597
- Switched the master daemon to use the asyncore library for the Luxi
598
  server endpoint
599

    
600

    
601
Version 2.2.0 beta 0
602
--------------------
603

    
604
*(Released Thu, 17 Jun 2010)*
605

    
606
- Added tool (``move-instance``) and infrastructure to move instances
607
  between separate clusters (see :doc:`separate documentation
608
  <move-instance>` and :doc:`design document <design-2.2>`)
609
- Added per-request RPC timeout
610
- RAPI now requires a Content-Type header for requests with a body (e.g.
611
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
612
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
613
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
614
  reachable
615
- Implemented initial support for running Ganeti daemons as separate
616
  users, see configure-time flags ``--with-user-prefix`` and
617
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
618
  time)
619
- Instances can be removed after export (``gnt-backup export
620
  --remove-instance``)
621
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
622
  key (instead of 1024 bit)
623
- Added new cluster configuration file for cluster domain secret
624
- Import/export now use SSL instead of SSH
625
- Added support for showing estimated time when exporting an instance,
626
  see the ``ganeti-os-interface(7)`` manpage and look for
627
  ``EXP_SIZE_FD``
628

    
629

    
630
Version 2.1.8
631
-------------
632

    
633
*(Released Tue, 16 Nov 2010)*
634

    
635
Some more bugfixes. Unless critical bugs occur, this will be the last
636
2.1 release:
637

    
638
- Fix case of MAC special-values
639
- Fix mac checker regex
640
- backend: Fix typo causing "out of range" error
641
- Add missing --units in gnt-instance list man page
642

    
643

    
644
Version 2.1.7
645
-------------
646

    
647
*(Released Tue, 24 Aug 2010)*
648

    
649
Bugfixes only:
650
  - Don't ignore secondary node silently on non-mirrored disk templates
651
    (issue 113)
652
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
653
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
654
  - Properly document the usb_mouse parameter
655
  - Fix path in ganeti-rapi(8) (issue 116)
656
  - Adjust error message when the ganeti user's .ssh directory is
657
    missing
658
  - Add same-node-check when changing the disk template to drbd
659

    
660

    
661
Version 2.1.6
662
-------------
663

    
664
*(Released Fri, 16 Jul 2010)*
665

    
666
Bugfixes only:
667
  - Add an option to only select some reboot types during qa/burnin.
668
    (on some hypervisors consequent reboots are not supported)
669
  - Fix infrequent race condition in master failover. Sometimes the old
670
    master ip address would be still detected as up for a short time
671
    after it was removed, causing failover to fail.
672
  - Decrease mlockall warnings when the ctypes module is missing. On
673
    Python 2.4 we support running even if no ctypes module is installed,
674
    but we were too verbose about this issue.
675
  - Fix building on old distributions, on which man doesn't have a
676
    --warnings option.
677
  - Fix RAPI not to ignore the MAC address on instance creation
678
  - Implement the old instance creation format in the RAPI client.
679

    
680

    
681
Version 2.1.5
682
-------------
683

    
684
*(Released Thu, 01 Jul 2010)*
685

    
686
A small bugfix release:
687
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
688
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
689
    a non-existing option
690
  - Fix instance create: the --force-variant option was ignored
691
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
692
  - Fix modify node storage with non-FQDN arguments
693
  - Fix RAPI client to authenticate under Python 2.6 when used
694
    for more than 5 requests needing authentication
695
  - Fix gnt-instance modify -t (storage) giving a wrong error message
696
    when converting a non-shutdown drbd instance to plain
697

    
698

    
699
Version 2.1.4
700
-------------
701

    
702
*(Released Fri, 18 Jun 2010)*
703

    
704
A small bugfix release:
705

    
706
  - Fix live migration of KVM instances started with older Ganeti
707
    versions which had fewer hypervisor parameters
708
  - Fix gnt-instance grow-disk on down instances
709
  - Fix an error-reporting bug during instance migration
710
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
711
    silently ignoring broken ones
712
  - Fix an RPC error reporting bug affecting, for example, RAPI client
713
    users
714
  - Fix bug triggered by different API version os-es on different nodes
715
  - Fix a bug in instance startup with custom hvparams: OS level
716
    parameters would fail to be applied.
717
  - Fix the RAPI client under Python 2.6 (but more work is needed to
718
    make it work completely well with OpenSSL)
719
  - Fix handling of errors when resolving names from DNS
720

    
721

    
722
Version 2.1.3
723
-------------
724

    
725
*(Released Thu, 3 Jun 2010)*
726

    
727
A medium sized development cycle. Some new features, and some
728
fixes/small improvements/cleanups.
729

    
730
Significant features
731
~~~~~~~~~~~~~~~~~~~~
732

    
733
The node deamon now tries to mlock itself into memory, unless the
734
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
735
its logs, and falls back to console logging. This allows emergency
736
features such as ``gnt-node powercycle`` to work even in the event of a
737
broken node disk (tested offlining the disk hosting the node's
738
filesystem and dropping its memory caches; don't try this at home)
739

    
740
KVM: add vhost-net acceleration support. It can be tested with a new
741
enough version of the kernel and of qemu-kvm.
742

    
743
KVM: Add instance chrooting feature. If you use privilege dropping for
744
your VMs you can also now force them to chroot to an empty directory,
745
before starting the emulated guest.
746

    
747
KVM: Add maximum migration bandwith and maximum downtime tweaking
748
support (requires a new-enough version of qemu-kvm).
749

    
750
Cluster verify will now warn if the master node doesn't have the master
751
ip configured on it.
752

    
753
Add a new (incompatible) instance creation request format to RAPI which
754
supports all parameters (previously only a subset was supported, and it
755
wasn't possible to extend the old format to accomodate all the new
756
features. The old format is still supported, and a client can check for
757
this feature, before using it, by checking for its presence in the
758
``features`` RAPI resource.
759

    
760
Now with ancient latin support. Try it passing the ``--roman`` option to
761
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
762
(requires the python-roman module to be installed, in order to work).
763

    
764
Other changes
765
~~~~~~~~~~~~~
766

    
767
As usual many internal code refactorings, documentation updates, and
768
such. Among others:
769

    
770
  - Lots of improvements and cleanups to the experimental Remote API
771
    (RAPI) client library.
772
  - A new unit test suite for the core daemon libraries.
773
  - A fix to creating missing directories makes sure the umask is not
774
    applied anymore. This enforces the same directory permissions
775
    everywhere.
776
  - Better handling terminating daemons with ctrl+c (used when running
777
    them in debugging mode).
778
  - Fix a race condition in live migrating a KVM instance, when stat()
779
    on the old proc status file returned EINVAL, which is an unexpected
780
    value.
781
  - Fixed manpage checking with newer man and utf-8 charachters. But now
782
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
783

    
784

    
785
Version 2.1.2.1
786
---------------
787

    
788
*(Released Fri, 7 May 2010)*
789

    
790
Fix a bug which prevented untagged KVM instances from starting.
791

    
792

    
793
Version 2.1.2
794
-------------
795

    
796
*(Released Fri, 7 May 2010)*
797

    
798
Another release with a long development cycle, during which many
799
different features were added.
800

    
801
Significant features
802
~~~~~~~~~~~~~~~~~~~~
803

    
804
The KVM hypervisor now can run the individual instances as non-root, to
805
reduce the impact of a VM being hijacked due to bugs in the
806
hypervisor. It is possible to run all instances as a single (non-root)
807
user, to manually specify a user for each instance, or to dynamically
808
allocate a user out of a cluster-wide pool to each instance, with the
809
guarantee that no two instances will run under the same user ID on any
810
given node.
811

    
812
An experimental RAPI client library, that can be used standalone
813
(without the other Ganeti libraries), is provided in the source tree as
814
``lib/rapi/client.py``. Note this client might change its interface in
815
the future, as we iterate on its capabilities.
816

    
817
A new command, ``gnt-cluster renew-crypto`` has been added to easily
818
replace the cluster's certificates and crypto keys. This might help in
819
case they have been compromised, or have simply expired.
820

    
821
A new disk option for instance creation has been added that allows one
822
to "adopt" currently existing logical volumes, with data
823
preservation. This should allow easier migration to Ganeti from
824
unmanaged (or managed via other software) instances.
825

    
826
Another disk improvement is the possibility to convert between redundant
827
(DRBD) and plain (LVM) disk configuration for an instance. This should
828
allow better scalability (starting with one node and growing the
829
cluster, or shrinking a two-node cluster to one node).
830

    
831
A new feature that could help with automated node failovers has been
832
implemented: if a node sees itself as offline (by querying the master
833
candidates), it will try to shutdown (hard) all instances and any active
834
DRBD devices. This reduces the risk of duplicate instances if an
835
external script automatically failovers the instances on such nodes. To
836
enable this, the cluster parameter ``maintain_node_health`` should be
837
enabled; in the future this option (per the name) will enable other
838
automatic maintenance features.
839

    
840
Instance export/import now will reuse the original instance
841
specifications for all parameters; that means exporting an instance,
842
deleting it and the importing it back should give an almost identical
843
instance. Note that the default import behaviour has changed from
844
before, where it created only one NIC; now it recreates the original
845
number of NICs.
846

    
847
Cluster verify has added a few new checks: SSL certificates validity,
848
/etc/hosts consistency across the cluster, etc.
849

    
850
Other changes
851
~~~~~~~~~~~~~
852

    
853
As usual, many internal changes were done, documentation fixes,
854
etc. Among others:
855

    
856
- Fixed cluster initialization with disabled cluster storage (regression
857
  introduced in 2.1.1)
858
- File-based storage supports growing the disks
859
- Fixed behaviour of node role changes
860
- Fixed cluster verify for some corner cases, plus a general rewrite of
861
  cluster verify to allow future extension with more checks
862
- Fixed log spamming by watcher and node daemon (regression introduced
863
  in 2.1.1)
864
- Fixed possible validation issues when changing the list of enabled
865
  hypervisors
866
- Fixed cleanup of /etc/hosts during node removal
867
- Fixed RAPI response for invalid methods
868
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
869
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
870
  from ide disks, etc.)
871
- Allow OS changes without re-installation (to record a changed OS
872
  outside of Ganeti, or to allow OS renames)
873
- Allow instance creation without OS installation (useful for example if
874
  the OS will be installed manually, or restored from a backup not in
875
  Ganeti format)
876
- Implemented option to make cluster ``copyfile`` use the replication
877
  network
878
- Added list of enabled hypervisors to ssconf (possibly useful for
879
  external scripts)
880
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
881
  1.2 clusters
882
- A partial form of node re-IP is possible via node readd, which now
883
  allows changed node primary IP
884
- Command line utilities now show an informational message if the job is
885
  waiting for a lock
886
- The logs of the master daemon now show the PID/UID/GID of the
887
  connected client
888

    
889

    
890
Version 2.1.1
891
-------------
892

    
893
*(Released Fri, 12 Mar 2010)*
894

    
895
During the 2.1.0 long release candidate cycle, a lot of improvements and
896
changes have accumulated with were released later as 2.1.1.
897

    
898
Major changes
899
~~~~~~~~~~~~~
900

    
901
The node evacuate command (``gnt-node evacuate``) was significantly
902
rewritten, and as such the IAllocator protocol was changed - a new
903
request type has been added. This unfortunate change during a stable
904
series is designed to improve performance of node evacuations; on
905
clusters with more than about five nodes and which are well-balanced,
906
evacuation should proceed in parallel for all instances of the node
907
being evacuated. As such, any existing IAllocator scripts need to be
908
updated, otherwise the above command will fail due to the unknown
909
request. The provided "dumb" allocator has not been updated; but the
910
ganeti-htools package supports the new protocol since version 0.2.4.
911

    
912
Another important change is increased validation of node and instance
913
names. This might create problems in special cases, if invalid host
914
names are being used.
915

    
916
Also, a new layer of hypervisor parameters has been added, that sits at
917
OS level between the cluster defaults and the instance ones. This allows
918
customisation of virtualization parameters depending on the installed
919
OS. For example instances with OS 'X' may have a different KVM kernel
920
(or any other parameter) than the cluster defaults. This is intended to
921
help managing a multiple OSes on the same cluster, without manual
922
modification of each instance's parameters.
923

    
924
A tool for merging clusters, ``cluster-merge``, has been added in the
925
tools sub-directory.
926

    
927
Bug fixes
928
~~~~~~~~~
929

    
930
- Improved the int/float conversions that should make the code more
931
  robust in face of errors from the node daemons
932
- Fixed the remove node code in case of internal configuration errors
933
- Fixed the node daemon behaviour in face of inconsistent queue
934
  directory (e.g. read-only file-system where we can't open the files
935
  read-write, etc.)
936
- Fixed the behaviour of gnt-node modify for master candidate demotion;
937
  now it either aborts cleanly or, if given the new "auto_promote"
938
  parameter, will automatically promote other nodes as needed
939
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
940
  completely prevent Ganeti from working
941
- Fixed bug for instance export when not all disks were successfully
942
  exported
943
- Fixed behaviour of node add when the new node is slow in starting up
944
  the node daemon
945
- Fixed handling of signals in the LUXI client, which should improve
946
  behaviour of command-line scripts
947
- Added checks for invalid node/instance names in the configuration (now
948
  flagged during cluster verify)
949
- Fixed watcher behaviour for disk activation errors
950
- Fixed two potentially endless loops in http library, which led to the
951
  RAPI daemon hanging and consuming 100% CPU in some cases
952
- Fixed bug in RAPI daemon related to hashed passwords
953
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
954
  instances
955
- Enhanced compatibility with non-Debian OSes, but not using absolute
956
  path in some commands and allowing customisation of the ssh
957
  configuration directory
958
- Fixed possible future issue with new Python versions by abiding to the
959
  proper use of ``__slots__`` attribute on classes
960
- Added checks that should prevent directory traversal attacks
961
- Many documentation fixes based on feedback from users
962

    
963
New features
964
~~~~~~~~~~~~
965

    
966
- Added an "early_release" more for instance replace disks and node
967
  evacuate, where we release locks earlier and thus allow higher
968
  parallelism within the cluster
969
- Added watcher hooks, intended to allow the watcher to restart other
970
  daemons (e.g. from the ganeti-nbma project), but they can be used of
971
  course for any other purpose
972
- Added a compile-time disable for DRBD barriers, to increase
973
  performance if the administrator trusts the power supply or the
974
  storage system to not lose writes
975
- Added the option of using syslog for logging instead of, or in
976
  addition to, Ganeti's own log files
977
- Removed boot restriction for paravirtual NICs for KVM, recent versions
978
  can indeed boot from a paravirtual NIC
979
- Added a generic debug level for many operations; while this is not
980
  used widely yet, it allows one to pass the debug value all the way to
981
  the OS scripts
982
- Enhanced the hooks environment for instance moves (failovers,
983
  migrations) where the primary/secondary nodes changed during the
984
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
985
- Enhanced data validations for many user-supplied values; one important
986
  item is the restrictions imposed on instance and node names, which
987
  might reject some (invalid) host names
988
- Add a configure-time option to disable file-based storage, if it's not
989
  needed; this allows greater security separation between the master
990
  node and the other nodes from the point of view of the inter-node RPC
991
  protocol
992
- Added user notification in interactive tools if job is waiting in the
993
  job queue or trying to acquire locks
994
- Added log messages when a job is waiting for locks
995
- Added filtering by node tags in instance operations which admit
996
  multiple instances (start, stop, reboot, reinstall)
997
- Added a new tool for cluster mergers, ``cluster-merge``
998
- Parameters from command line which are of the form ``a=b,c=d`` can now
999
  use backslash escapes to pass in values which contain commas,
1000
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1001
  ``b,c``
1002
- For KVM, the instance name is the first parameter passed to KVM, so
1003
  that it's more visible in the process list
1004

    
1005

    
1006
Version 2.1.0
1007
-------------
1008

    
1009
*(Released Tue, 2 Mar 2010)*
1010

    
1011
Ganeti 2.1 brings many improvements with it. Major changes:
1012

    
1013
- Added infrastructure to ease automated disk repairs
1014
- Added new daemon to export configuration data in a cheaper way than
1015
  using the remote API
1016
- Instance NICs can now be routed instead of being associated with a
1017
  networking bridge
1018
- Improved job locking logic to reduce impact of jobs acquiring multiple
1019
  locks waiting for other long-running jobs
1020

    
1021
In-depth implementation details can be found in the Ganeti 2.1 design
1022
document.
1023

    
1024
Details
1025
~~~~~~~
1026

    
1027
- Added chroot hypervisor
1028
- Added more options to xen-hvm hypervisor (``kernel_path`` and
1029
  ``device_model``)
1030
- Added more options to xen-pvm hypervisor (``use_bootloader``,
1031
  ``bootloader_path`` and ``bootloader_args``)
1032
- Added the ``use_localtime`` option for the xen-hvm and kvm
1033
  hypervisors, and the default value for this has changed to false (in
1034
  2.0 xen-hvm always enabled it)
1035
- Added luxi call to submit multiple jobs in one go
1036
- Added cluster initialization option to not modify ``/etc/hosts``
1037
  file on nodes
1038
- Added network interface parameters
1039
- Added dry run mode to some LUs
1040
- Added RAPI resources:
1041

    
1042
  - ``/2/instances/[instance_name]/info``
1043
  - ``/2/instances/[instance_name]/replace-disks``
1044
  - ``/2/nodes/[node_name]/evacuate``
1045
  - ``/2/nodes/[node_name]/migrate``
1046
  - ``/2/nodes/[node_name]/role``
1047
  - ``/2/nodes/[node_name]/storage``
1048
  - ``/2/nodes/[node_name]/storage/modify``
1049
  - ``/2/nodes/[node_name]/storage/repair``
1050

    
1051
- Added OpCodes to evacuate or migrate all instances on a node
1052
- Added new command to list storage elements on nodes (``gnt-node
1053
  list-storage``) and modify them (``gnt-node modify-storage``)
1054
- Added new ssconf files with master candidate IP address
1055
  (``ssconf_master_candidates_ips``), node primary IP address
1056
  (``ssconf_node_primary_ips``) and node secondary IP address
1057
  (``ssconf_node_secondary_ips``)
1058
- Added ``ganeti-confd`` and a client library to query the Ganeti
1059
  configuration via UDP
1060
- Added ability to run hooks after cluster initialization and before
1061
  cluster destruction
1062
- Added automatic mode for disk replace (``gnt-instance replace-disks
1063
  --auto``)
1064
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
1065
  after catastrophic data-loss
1066
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
1067
  groups
1068
- Added ``gnt-instance move`` command to move instances
1069
- Added ``gnt-cluster watcher`` command to control watcher
1070
- Added ``gnt-node powercycle`` command to powercycle nodes
1071
- Added new job status field ``lock_status``
1072
- Added parseable error codes to cluster verification (``gnt-cluster
1073
  verify --error-codes``) and made output less verbose (use
1074
  ``--verbose`` to restore previous behaviour)
1075
- Added UUIDs to the main config entities (cluster, nodes, instances)
1076
- Added support for OS variants
1077
- Added support for hashed passwords in the Ganeti remote API users file
1078
  (``rapi_users``)
1079
- Added option to specify maximum timeout on instance shutdown
1080
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
1081
- Added new helper script to start and stop Ganeti daemons
1082
  (``daemon-util``), with the intent to reduce the work necessary to
1083
  adjust Ganeti for non-Debian distributions and to start/stop daemons
1084
  from one place
1085
- Added more unittests
1086
- Fixed critical bug in ganeti-masterd startup
1087
- Removed the configure-time ``kvm-migration-port`` parameter, this is
1088
  now customisable at the cluster level for both the KVM and Xen
1089
  hypervisors using the new ``migration_port`` parameter
1090
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
1091
  reinstalling an instance
1092
- Allowed ``@`` in tag names
1093
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
1094
- Many documentation updates
1095
- Distribute hypervisor files on ``gnt-cluster redist-conf``
1096
- ``gnt-instance reinstall`` can now reinstall multiple instances
1097
- Updated many command line parameters
1098
- Introduced new OS API version 15
1099
- No longer support a default hypervisor
1100
- Treat virtual LVs as inexistent
1101
- Improved job locking logic to reduce lock contention
1102
- Match instance and node names case insensitively
1103
- Reimplemented bash completion script to be more complete
1104
- Improved burnin
1105

    
1106

    
1107
Version 2.0.6
1108
-------------
1109

    
1110
*(Released Thu, 4 Feb 2010)*
1111

    
1112
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
1113
- Fix a string formatting bug
1114
- Improve safety of the code in some error paths
1115
- Improve data validation in the master of values returned from nodes
1116

    
1117

    
1118
Version 2.0.5
1119
-------------
1120

    
1121
*(Released Thu, 17 Dec 2009)*
1122

    
1123
- Fix security issue due to missing validation of iallocator names; this
1124
  allows local and remote execution of arbitrary executables
1125
- Fix failure of gnt-node list during instance removal
1126
- Ship the RAPI documentation in the archive
1127

    
1128

    
1129
Version 2.0.4
1130
-------------
1131

    
1132
*(Released Wed, 30 Sep 2009)*
1133

    
1134
- Fixed many wrong messages
1135
- Fixed a few bugs related to the locking library
1136
- Fixed MAC checking at instance creation time
1137
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
1138
- Fixed a few issues related to signal handling in both daemons and
1139
  scripts
1140
- Fixed the example startup script provided
1141
- Fixed insserv dependencies in the example startup script (patch from
1142
  Debian)
1143
- Fixed handling of drained nodes in the iallocator framework
1144
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
1145
  #528618)
1146
- Fixed error related to invalid job IDs in job polling
1147
- Fixed job/opcode persistence on unclean master shutdown
1148
- Fixed handling of partial job processing after unclean master
1149
  shutdown
1150
- Fixed error reporting from LUs, previously all errors were converted
1151
  into execution errors
1152
- Fixed error reporting from burnin
1153
- Decreased significantly the memory usage of the job queue
1154
- Optimised slightly multi-job submission
1155
- Optimised slightly opcode loading
1156
- Backported the multi-job submit framework from the development
1157
  branch; multi-instance start and stop should be faster
1158
- Added script to clean archived jobs after 21 days; this will reduce
1159
  the size of the queue directory
1160
- Added some extra checks in disk size tracking
1161
- Added an example ethers hook script
1162
- Added a cluster parameter that prevents Ganeti from modifying of
1163
  /etc/hosts
1164
- Added more node information to RAPI responses
1165
- Added a ``gnt-job watch`` command that allows following the ouput of a
1166
  job
1167
- Added a bind-address option to ganeti-rapi
1168
- Added more checks to the configuration verify
1169
- Enhanced the burnin script such that some operations can be retried
1170
  automatically
1171
- Converted instance reinstall to multi-instance model
1172

    
1173

    
1174
Version 2.0.3
1175
-------------
1176

    
1177
*(Released Fri, 7 Aug 2009)*
1178

    
1179
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
1180
  to allow using the pre-2.0.2 behaviour in activation, if any existing
1181
  instances have mismatched disk sizes in the configuration
1182
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
1183
  any configuration mismatches for disk sizes
1184
- Added ``gnt-master cluste-failover --no-voting`` to allow master
1185
  failover to work on two-node clusters
1186
- Fixed the ``--net`` option of ``gnt-backup import``, which was
1187
  unusable
1188
- Fixed detection of OS script errors in ``gnt-backup export``
1189
- Fixed exit code of ``gnt-backup export``
1190

    
1191

    
1192
Version 2.0.2
1193
-------------
1194

    
1195
*(Released Fri, 17 Jul 2009)*
1196

    
1197
- Added experimental support for stripped logical volumes; this should
1198
  enhance performance but comes with a higher complexity in the block
1199
  device handling; stripping is only enabled when passing
1200
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
1201
  affected even in the non-stripped mode
1202
- Improved resiliency against transient failures at the end of DRBD
1203
  resyncs, and in general of DRBD resync checks
1204
- Fixed a couple of issues with exports and snapshot errors
1205
- Fixed a couple of issues in instance listing
1206
- Added display of the disk size in ``gnt-instance info``
1207
- Fixed checking for valid OSes in instance creation
1208
- Fixed handling of the "vcpus" parameter in instance listing and in
1209
  general of invalid parameters
1210
- Fixed http server library, and thus RAPI, to handle invalid
1211
  username/password combinations correctly; this means that now they
1212
  report unauthorized for queries too, not only for modifications,
1213
  allowing earlier detect of configuration problems
1214
- Added a new "role" node list field, equivalent to the master/master
1215
  candidate/drained/offline flags combinations
1216
- Fixed cluster modify and changes of candidate pool size
1217
- Fixed cluster verify error messages for wrong files on regular nodes
1218
- Fixed a couple of issues with node demotion from master candidate role
1219
- Fixed node readd issues
1220
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
1221
- Added a new ``--no-voting`` option for masterfailover to fix failover
1222
  on two-nodes clusters when the former master node is unreachable
1223
- Added instance reinstall over RAPI
1224

    
1225

    
1226
Version 2.0.1
1227
-------------
1228

    
1229
*(Released Tue, 16 Jun 2009)*
1230

    
1231
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
1232
  allow re-adding the start in single-user option (regression from 1.2)
1233
- the watcher writes the instance status to a file, to allow monitoring
1234
  to report the instance status (from the master) based on cached
1235
  results of the watcher's queries; while this can get stale if the
1236
  watcher is being locked due to other work on the cluster, this is
1237
  still an improvement
1238
- the watcher now also restarts the node daemon and the rapi daemon if
1239
  they died
1240
- fixed the watcher to handle full and drained queue cases
1241
- hooks export more instance data in the environment, which helps if
1242
  hook scripts need to take action based on the instance's properties
1243
  (no longer need to query back into ganeti)
1244
- instance failovers when the instance is stopped do not check for free
1245
  RAM, so that failing over a stopped instance is possible in low memory
1246
  situations
1247
- rapi uses queries for tags instead of jobs (for less job traffic), and
1248
  for cluster tags it won't talk to masterd at all but read them from
1249
  ssconf
1250
- a couple of error handling fixes in RAPI
1251
- drbd handling: improved the error handling of inconsistent disks after
1252
  resync to reduce the frequency of "there are some degraded disks for
1253
  this instance" messages
1254
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
1255
  error handling path called a wrong function name)
1256

    
1257

    
1258
Version 2.0.0 final
1259
-------------------
1260

    
1261
*(Released Wed, 27 May 2009)*
1262

    
1263
- no changes from rc5
1264

    
1265

    
1266
Version 2.0 release candidate 5
1267
-------------------------------
1268

    
1269
*(Released Wed, 20 May 2009)*
1270

    
1271
- fix a couple of bugs (validation, argument checks)
1272
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
1273
- some small improvements to RAPI and IAllocator
1274
- make watcher automatically start the master daemon if down
1275

    
1276

    
1277
Version 2.0 release candidate 4
1278
-------------------------------
1279

    
1280
*(Released Mon, 27 Apr 2009)*
1281

    
1282
- change the OS list to not require locks; this helps with big clusters
1283
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
1284
  volume group is broken
1285
- ``gnt-instance info``, without any arguments, doesn't run for all
1286
  instances anymore; either pass ``--all`` or pass the desired
1287
  instances; this helps against mistakes on big clusters where listing
1288
  the information for all instances takes a long time
1289
- miscellaneous doc and man pages fixes
1290

    
1291

    
1292
Version 2.0 release candidate 3
1293
-------------------------------
1294

    
1295
*(Released Wed, 8 Apr 2009)*
1296

    
1297
- Change the internal locking model of some ``gnt-node`` commands, in
1298
  order to reduce contention (and blocking of master daemon) when
1299
  batching many creation/reinstall jobs
1300
- Fixes to Xen soft reboot
1301
- No longer build documentation at build time, instead distribute it in
1302
  the archive, in order to reduce the need for the whole docbook/rst
1303
  toolchains
1304

    
1305

    
1306
Version 2.0 release candidate 2
1307
-------------------------------
1308

    
1309
*(Released Fri, 27 Mar 2009)*
1310

    
1311
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
1312
- Fix watcher startup sequence, improves the behaviour of busy clusters
1313
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
1314
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
1315
  bind address and other places
1316
- Some documentation fixes and updates
1317

    
1318

    
1319
Version 2.0 release candidate 1
1320
-------------------------------
1321

    
1322
*(Released Mon, 2 Mar 2009)*
1323

    
1324
- More documentation updates, now all docs should be more-or-less
1325
  up-to-date
1326
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
1327
  etc.)
1328
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
1329
  and KVM)
1330
- Fix an issue related to $libdir/run/ganeti and cluster creation
1331

    
1332

    
1333
Version 2.0 beta 2
1334
------------------
1335

    
1336
*(Released Thu, 19 Feb 2009)*
1337

    
1338
- Xen PVM and KVM have switched the default value for the instance root
1339
  disk to the first partition on the first drive, instead of the whole
1340
  drive; this means that the OS installation scripts must be changed
1341
  accordingly
1342
- Man pages have been updated
1343
- RAPI has been switched by default to HTTPS, and the exported functions
1344
  should all work correctly
1345
- RAPI v1 has been removed
1346
- Many improvements to the KVM hypervisor
1347
- Block device errors are now better reported
1348
- Many other bugfixes and small improvements
1349

    
1350

    
1351
Version 2.0 beta 1
1352
------------------
1353

    
1354
*(Released Mon, 26 Jan 2009)*
1355

    
1356
- Version 2 is a general rewrite of the code and therefore the
1357
  differences are too many to list, see the design document for 2.0 in
1358
  the ``doc/`` subdirectory for more details
1359
- In this beta version there is not yet a migration path from 1.2 (there
1360
  will be one in the final 2.0 release)
1361
- A few significant changes are:
1362

    
1363
  - all commands are executed by a daemon (``ganeti-masterd``) and the
1364
    various ``gnt-*`` commands are just front-ends to it
1365
  - all the commands are entered into, and executed from a job queue,
1366
    see the ``gnt-job(8)`` manpage
1367
  - the RAPI daemon supports read-write operations, secured by basic
1368
    HTTP authentication on top of HTTPS
1369
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
1370
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
1371
    to migrate to DRBD 8 first while still running Ganeti 1.2)
1372
  - DRBD devices are using statically allocated minor numbers, which
1373
    will be assigned to existing instances during the migration process
1374
  - there is support for both Xen PVM and Xen HVM instances running on
1375
    the same cluster
1376
  - KVM virtualization is supported too
1377
  - file-based storage has been implemented, which means that it is
1378
    possible to run the cluster without LVM and DRBD storage, for
1379
    example using a shared filesystem exported from shared storage (and
1380
    still have live migration)
1381

    
1382

    
1383
Version 1.2.7
1384
-------------
1385

    
1386
*(Released Tue, 13 Jan 2009)*
1387

    
1388
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
1389
- Reuse the old instance mac address by default on instance import, if
1390
  the instance name is the same.
1391
- Handle situations in which the node info rpc returns incomplete
1392
  results (issue 46)
1393
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
1394
- Improved version of batcher:
1395

    
1396
  - state file support
1397
  - instance mac address support
1398
  - support for HVM clusters/instances
1399

    
1400
- Add an option to show the number of cpu sockets and nodes in
1401
  ``gnt-node list``
1402
- Support OSes that handle more than one version of the OS api (but do
1403
  not change the current API in any other way)
1404
- Fix ``gnt-node migrate``
1405
- ``gnt-debug`` man page
1406
- Fixes various more typos and small issues
1407
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
1408

    
1409

    
1410
Version 1.2.6
1411
-------------
1412

    
1413
*(Released Wed, 24 Sep 2008)*
1414

    
1415
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
1416
  type of disk exported to fully virtualized instances.
1417
- provide access to the serial console of HVM instances
1418
- instance auto_balance flag, set by default. If turned off it will
1419
  avoid warnings on cluster verify if there is not enough memory to fail
1420
  over an instance. in the future it will prevent automatically failing
1421
  it over when we will support that.
1422
- batcher tool for instance creation, see ``tools/README.batcher``
1423
- ``gnt-instance reinstall --select-os`` to interactively select a new
1424
  operating system when reinstalling an instance.
1425
- when changing the memory amount on instance modify a check has been
1426
  added that the instance will be able to start. also warnings are
1427
  emitted if the instance will not be able to fail over, if auto_balance
1428
  is true.
1429
- documentation fixes
1430
- sync fields between ``gnt-instance list/modify/add/import``
1431
- fix a race condition in drbd when the sync speed was set after giving
1432
  the device a remote peer.
1433

    
1434

    
1435
Version 1.2.5
1436
-------------
1437

    
1438
*(Released Tue, 22 Jul 2008)*
1439

    
1440
- note: the allowed size and number of tags per object were reduced
1441
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
1442
- fixed twisted 8.x compatibility
1443
- fixed ``gnt-instance replace-disks`` with iallocator
1444
- add TCP keepalives on twisted connections to detect restarted nodes
1445
- disk increase support, see ``gnt-instance grow-disk``
1446
- implement bulk node/instance query for RAPI
1447
- add tags in node/instance listing (optional)
1448
- experimental migration (and live migration) support, read the man page
1449
  for ``gnt-instance migrate``
1450
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
1451
  has some small improvements in handling its state file
1452

    
1453

    
1454
Version 1.2.4
1455
-------------
1456

    
1457
*(Released Fri, 13 Jun 2008)*
1458

    
1459
- Experimental readonly, REST-based remote API implementation;
1460
  automatically started on master node, TCP port 5080, if enabled by
1461
  ``--enable-rapi`` parameter to configure script.
1462
- Instance allocator support. Add and import instance accept a
1463
  ``--iallocator`` parameter, and call that instance allocator to decide
1464
  which node to use for the instance. The iallocator document describes
1465
  what's expected from an allocator script.
1466
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
1467
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
1468
  node is lost there is still enough memory to fail over the instances
1469
  that reside on it.
1470
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
1471
  ``gnt-cluster verify``, to check for site-specific compliance. All the
1472
  hooks will run, and their output, if any, will be displayed. Any
1473
  failing hook will make the verification return an error value.
1474
- ``gnt-cluster verify`` now checks that its peers are reachable on the
1475
  primary and secondary interfaces
1476
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
1477
  that is still declared as part of the cluster and has failed.
1478
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
1479
  specifying output fields, that just adds the chosen fields to the
1480
  default ones.
1481
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
1482
  export from the filesystem.
1483
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
1484
  have been added. Using them you can enable/disable acpi and pae
1485
  support, and specify a path for a cd image to be exported to the
1486
  instance. These parameters as the name suggest only work on HVM
1487
  clusters.
1488
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
1489
  PAE support will be set to the previously hardcoded values, but the
1490
  (previously hardcoded) path to the CDROM ISO image will be unset and
1491
  if required, needs to be set manually with ``gnt-instance modify``
1492
  after the upgrade.
1493
- The address to which an instance's VNC console is bound is now
1494
  selectable per-instance, rather than being cluster wide. Of course
1495
  this only applies to instances controlled via VNC, so currently just
1496
  applies to HVM clusters.
1497

    
1498

    
1499
Version 1.2.3
1500
-------------
1501

    
1502
*(Released Mon, 18 Feb 2008)*
1503

    
1504
- more tweaks to the disk activation code (especially helpful for DRBD)
1505
- change the default ``gnt-instance list`` output format, now there is
1506
  one combined status field (see the manpage for the exact values this
1507
  field will have)
1508
- some more fixes for the mac export to hooks change
1509
- make Ganeti not break with DRBD 8.2.x (which changed the version
1510
  format in ``/proc/drbd``) (issue 24)
1511
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
1512
  template, allowing migration from DRBD0.7+MD to DRBD8
1513

    
1514

    
1515
Version 1.2.2
1516
-------------
1517

    
1518
*(Released Wed, 30 Jan 2008)*
1519

    
1520
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
1521
  support (issue 23)
1522
- add command aliases infrastructure and a few aliases
1523
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
1524
  man pages and the ``--help`` option of ``gnt-node
1525
  list``/``gnt-instance list``
1526
- fix ``gnt-backup list`` with down nodes (issue 21)
1527
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
1528
- fix the dist archive and add a check for including svn/git files in
1529
  the future
1530
- some developer-related changes: improve the burnin and the QA suite,
1531
  add an upload script for testing during development
1532

    
1533

    
1534
Version 1.2.1
1535
-------------
1536

    
1537
*(Released Wed, 16 Jan 2008)*
1538

    
1539
- experimental HVM support, read the install document, section
1540
  "Initializing the cluster"
1541
- allow for the PVM hypervisor per-instance kernel and initrd paths
1542
- add a new command ``gnt-cluster verify-disks`` which uses a new
1543
  algorithm to improve the reconnection of the DRBD pairs if the device
1544
  on the secondary node has gone away
1545
- make logical volume code auto-activate LVs at disk activation time
1546
- slightly improve the speed of activating disks
1547
- allow specification of the MAC address at instance creation time, and
1548
  changing it later via ``gnt-instance modify``
1549
- fix handling of external commands that generate lots of output on
1550
  stderr
1551
- update documentation with regard to minimum version of DRBD8 supported
1552

    
1553

    
1554
Version 1.2.0
1555
-------------
1556

    
1557
*(Released Tue, 4 Dec 2007)*
1558

    
1559
- Log the ``xm create`` output to the node daemon log on failure (to
1560
  help diagnosing the error)
1561
- In debug mode, log all external commands output if failed to the logs
1562
- Change parsing of lvm commands to ignore stderr
1563

    
1564

    
1565
Version 1.2b3
1566
-------------
1567

    
1568
*(Released Wed, 28 Nov 2007)*
1569

    
1570
- Another round of updates to the DRBD 8 code to deal with more failures
1571
  in the replace secondary node operation
1572
- Some more logging of failures in disk operations (lvm, drbd)
1573
- A few documentation updates
1574
- QA updates
1575

    
1576

    
1577
Version 1.2b2
1578
-------------
1579

    
1580
*(Released Tue, 13 Nov 2007)*
1581

    
1582
- Change configuration file format from Python's Pickle to JSON.
1583
  Upgrading is possible using the cfgupgrade utility.
1584
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
1585
  faster replace disks and is more stable (DRBD 8 has many improvements
1586
  compared to DRBD 0.7)
1587
- Added command line tags support (see man pages for ``gnt-instance``,
1588
  ``gnt-node``, ``gnt-cluster``)
1589
- Added instance rename support
1590
- Added multi-instance startup/shutdown
1591
- Added cluster rename support
1592
- Added ``gnt-node evacuate`` to simplify some node operations
1593
- Added instance reboot operation that can speedup reboot as compared to
1594
  stop and start
1595
- Soften the requirement that hostnames are in FQDN format
1596
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
1597
  reboots
1598
- Removed dependency on debian's patched fping that uses the
1599
  non-standard ``-S`` option
1600
- Now the OS definitions are searched for in multiple, configurable
1601
  paths (easier for distros to package)
1602
- Some changes to the hooks infrastructure (especially the new
1603
  post-configuration update hook)
1604
- Other small bugfixes
1605

    
1606
.. vim: set textwidth=72 syntax=rst :
1607
.. Local Variables:
1608
.. mode: rst
1609
.. fill-column: 72
1610
.. End: