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1
News
2
====
3

    
4
Version 2.4.2
5
-------------
6

    
7
*(Released Thu, 12 May 2011)*
8

    
9
Many bug-fixes and a few new small features:
10

    
11
- Fixed a bug related to log opening failures
12
- Fixed a bug in instance listing with orphan instances
13
- Fixed a bug which prevented resetting the cluster-level node parameter
14
  ``oob_program`` to the default
15
- Many fixes related to the ``cluster-merge`` tool
16
- Fixed a race condition in the lock monitor, which caused failures
17
  during (at least) creation of many instances in parallel
18
- Improved output for gnt-job info
19
- Removed the quiet flag on some ssh calls which prevented debugging
20
  failures
21
- Improved the N+1 failure messages in cluster verify by actually
22
  showing the memory values (needed and available)
23
- Increased lock attempt timeouts so that when executing long operations
24
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
25
  too early and thus prevent the use of the 'fair' mechanism
26
- Changed instance query data (``gnt-instance info``) to not acquire
27
  locks unless needed, thus allowing its use on locked instance if only
28
  static information is asked for
29
- Improved behaviour with filesystems that do not support rename on an
30
  opened file
31
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
32
  kept locks on all nodes during the wipe, which is unneeded
33
- Fixed ``gnt-watcher`` handling of errors during hooks execution
34
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
35
  10GiB) which caused the wipe to fail right at the end in some cases
36
- Fixed master IP activation when doing master failover with no-voting
37
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
38
  the master node itself
39
- Fixed potential data-loss in under disk full conditions, where Ganeti
40
  wouldn't check correctly the return code and would consider
41
  partially-written files 'correct'
42
- Fixed bug related to multiple VGs and DRBD disk replacing
43
- Added new disk parameter ``metavg`` that allows placement of the meta
44
  device for DRBD in a different volume group
45
- Fixed error handling in the node daemon when the system libc doesn't
46
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
47
- Fixed lock release during replace-disks, which kept cluster-wide locks
48
  when doing disk replaces with an iallocator script
49
- Added check for missing bridges in cluster verify
50
- Handle EPIPE errors while writing to the terminal better, so that
51
  piping the output to e.g. ``less`` doesn't cause a backtrace
52
- Fixed rare case where a ^C during Luxi calls could have been
53
  interpreted as server errors, instead of simply terminating
54
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
55
  assign-nodes``)
56
- Added a few more parameters to the KVM hypervisor, allowing a second
57
  CDROM, custom disk type for CDROMs and a floppy image
58
- Removed redundant message in instance rename when the name is given
59
  already as a FQDN
60
- Added option to ``gnt-instance recreate-disks`` to allow creating the
61
  disks on new nodes, allowing recreation when the original instance
62
  nodes are completely gone
63
- Added option when converting disk templates to DRBD to skip waiting
64
  for the resync, in order to make the instance available sooner
65
- Added two new variables to the OS scripts environment (containing the
66
  instance's nodes)
67
- Made the root_path and optional parameter for the xen-pvm hypervisor,
68
  to allow use of ``pvgrub`` as bootloader
69
- Changed the instance memory modifications to only check out-of-memory
70
  conditions on memory increases, and turned the secondary node warnings
71
  into errors (they can still be overridden via ``--force``)
72
- Fixed the handling of a corner case when the Python installation gets
73
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
74
  to execute a command that doesn't exist
75
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
76
  node of the instance returned failures during instance shutdown; this
77
  adds the option ``--ignore-consistency`` to gnt-instance move
78

    
79
And as usual, various improvements to the error messages, documentation
80
and man pages.
81

    
82
Version 2.4.1
83
-------------
84

    
85
*(Released Wed, 09 Mar 2011)*
86

    
87
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
88
the RAPI users file if run twice (even with ``-dry-run``).
89

    
90
The release fixes that bug (nothing else changed).
91

    
92

    
93
Version 2.4.0
94
-------------
95

    
96
*(Released Mon, 07 Mar 2011)*
97

    
98
Final 2.4.0 release. Just a few small fixes:
99

    
100
- Fixed RAPI node evacuate
101
- Fixed the kvm-ifup script
102
- Fixed internal error handling for special job cases
103
- Updated man page to specify the escaping feature for options
104

    
105

    
106
Version 2.4.0 rc3
107
-----------------
108

    
109
*(Released Mon, 28 Feb 2011)*
110

    
111
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
112
that this feature wiped the disks of the wrong instance, leading to loss
113
of data.
114

    
115
Other changes:
116

    
117
- Fixed title of query field containing instance name
118
- Expanded the glossary in the documentation
119
- Fixed one unittest (internal issue)
120

    
121

    
122
Version 2.4.0 rc2
123
-----------------
124

    
125
*(Released Mon, 21 Feb 2011)*
126

    
127
A number of bug fixes plus just a couple functionality changes.
128

    
129
On the user-visible side, the ``gnt-* list`` command output has changed
130
with respect to "special" field states. The current rc1 style of display
131
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
132
the default output mode special fields states are displayed as follows:
133

    
134
- Offline resource: ``*``
135
- Unavailable/not applicable: ``-``
136
- Data missing (RPC failure): ``?``
137
- Unknown field: ``??``
138

    
139
Another user-visible change is the addition of ``--force-join`` to
140
``gnt-node add``.
141

    
142
As for bug fixes:
143

    
144
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
145
- Fixed regression in RAPI/instance reinstall where all parameters were
146
  required (instead of optional)
147
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
148
- Fixed iallocator usage (offline nodes were not considered offline)
149
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
150
- Fixed hypervisor and OS parameter validation with respect to
151
  non-vm_capable nodes
152
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
153
  cosmetic)
154
- Fixed ``tools/listrunner`` with respect to agent-based usage
155

    
156

    
157
Version 2.4.0 rc1
158
-----------------
159

    
160
*(Released Fri,  4 Feb 2011)*
161

    
162
Many changes and fixes since the beta1 release. While there were some
163
internal changes, the code has been mostly stabilised for the RC
164
release.
165

    
166
Note: the dumb allocator was removed in this release, as it was not kept
167
up-to-date with the IAllocator protocol changes. It is recommended to
168
use the ``hail`` command from the ganeti-htools package.
169

    
170
Note: the 2.4 and up versions of Ganeti are not compatible with the
171
0.2.x branch of ganeti-htools. You need to upgrade to
172
ganeti-htools-0.3.0 (or later).
173

    
174
Regressions fixed from 2.3
175
~~~~~~~~~~~~~~~~~~~~~~~~~~
176

    
177
- Fixed the ``gnt-cluster verify-disks`` command
178
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
179
  serially on nodes)
180
- Fixed disk adoption breakage
181
- Fixed wrong headers in instance listing for field aliases
182

    
183
Other bugs fixed
184
~~~~~~~~~~~~~~~~
185

    
186
- Fixed corner case in KVM handling of NICs
187
- Fixed many cases of wrong handling of non-vm_capable nodes
188
- Fixed a bug where a missing instance symlink was not possible to
189
  recreate with any ``gnt-*`` command (now ``gnt-instance
190
  activate-disks`` does it)
191
- Fixed the volume group name as reported by ``gnt-cluster
192
  verify-disks``
193
- Increased timeouts for the import-export code, hopefully leading to
194
  fewer aborts due network or instance timeouts
195
- Fixed bug in ``gnt-node list-storage``
196
- Fixed bug where not all daemons were started on cluster
197
  initialisation, but only at the first watcher run
198
- Fixed many bugs in the OOB implementation
199
- Fixed watcher behaviour in presence of instances with offline
200
  secondaries
201
- Fixed instance list output for instances running on the wrong node
202
- a few fixes to the cluster-merge tool, but it still cannot merge
203
  multi-node groups (currently it is not recommended to use this tool)
204

    
205

    
206
Improvements
207
~~~~~~~~~~~~
208

    
209
- Improved network configuration for the KVM hypervisor
210
- Added e1000 as a supported NIC for Xen-HVM
211
- Improved the lvmstrap tool to also be able to use partitions, as
212
  opposed to full disks
213
- Improved speed of disk wiping (the cluster parameter
214
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
215
  of instance creations
216
- Added documentation for the OS parameters
217
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
218
  hypervisor is not responding
219
- Added display of blacklisted and hidden OS information in
220
  ``gnt-cluster info``
221
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
222
  NIC and node parameters, which might create problems with currently
223
  invalid (but undetected) configuration files, but prevents validation
224
  failures when unrelated parameters are modified
225
- Changed cluster initialisation to wait for the master daemon to become
226
  available
227
- Expanded the RAPI interface:
228

    
229
  - Added config redistribution resource
230
  - Added activation/deactivation of instance disks
231
  - Added export of console information
232

    
233
- Implemented log file reopening on SIGHUP, which allows using
234
  logrotate(8) for the Ganeti log files
235
- Added a basic OOB helper script as an example
236

    
237

    
238
Version 2.4.0 beta1
239
-------------------
240

    
241
*(Released Fri, 14 Jan 2011)*
242

    
243
User-visible
244
~~~~~~~~~~~~
245

    
246
- Fixed timezone issues when formatting timestamps
247
- Added support for node groups, available via ``gnt-group`` and other
248
  commands
249
- Added out-of-band framework and management, see :doc:`design
250
  document <design-oob>`
251
- Removed support for roman numbers from ``gnt-node list`` and
252
  ``gnt-instance list``.
253
- Allowed modification of master network interface via ``gnt-cluster
254
  modify --master-netdev``
255
- Accept offline secondaries while shutting down instance disks
256
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
257
- Added support for multiple LVM volume groups
258
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
259
  requested
260
- Added commands to list available fields:
261

    
262
  - ``gnt-node list-fields``
263
  - ``gnt-group list-fields``
264
  - ``gnt-instance list-fields``
265

    
266
- Updated documentation and man pages
267

    
268
Integration
269
~~~~~~~~~~~
270

    
271
- Moved ``rapi_users`` file into separate directory, now named
272
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
273
  symlink
274
- Added new tool for running commands on many machines,
275
  ``tools/ganeti-listrunner``
276
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
277
  improving the ``gnt-instance console`` output
278
- Allowed customisation of disk index separator at ``configure`` time
279
- Export node group allocation policy to :doc:`iallocator <iallocator>`
280
- Added support for non-partitioned md disks in ``lvmstrap``
281
- Added script to gracefully power off KVM instances
282
- Split ``utils`` module into smaller parts
283
- Changed query operations to return more detailed information, e.g.
284
  whether an information is unavailable due to an offline node. To use
285
  this new functionality, the LUXI call ``Query`` must be used. Field
286
  information is now stored by the master daemon and can be retrieved
287
  using ``QueryFields``. Instances, nodes and groups can also be queried
288
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
289
  exposed via RAPI). The following commands make use of this
290
  infrastructure change:
291

    
292
  - ``gnt-group list``
293
  - ``gnt-group list-fields``
294
  - ``gnt-node list``
295
  - ``gnt-node list-fields``
296
  - ``gnt-instance list``
297
  - ``gnt-instance list-fields``
298
  - ``gnt-debug locks``
299

    
300
Remote API
301
~~~~~~~~~~
302

    
303
- New RAPI resources (see :doc:`rapi`):
304

    
305
  - ``/2/modify``
306
  - ``/2/groups``
307
  - ``/2/groups/[group_name]``
308
  - ``/2/groups/[group_name]/assign-nodes``
309
  - ``/2/groups/[group_name]/modify``
310
  - ``/2/groups/[group_name]/rename``
311
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
312

    
313
- RAPI changes:
314

    
315
  - Implemented ``no_install`` for instance creation
316
  - Implemented OS parameters for instance reinstallation, allowing
317
    use of special settings on reinstallation (e.g. for preserving data)
318

    
319
Misc
320
~~~~
321

    
322
- Added IPv6 support in import/export
323
- Pause DRBD synchronization while wiping disks on instance creation
324
- Updated unittests and QA scripts
325
- Improved network parameters passed to KVM
326
- Converted man pages from docbook to reStructuredText
327

    
328

    
329
Version 2.3.1
330
-------------
331

    
332
*(Released Mon, 20 Dec 2010)*
333

    
334
Released version 2.3.1~rc1 without any changes.
335

    
336

    
337
Version 2.3.1 rc1
338
-----------------
339

    
340
*(Released Wed, 1 Dec 2010)*
341

    
342
- impexpd: Disable OpenSSL compression in socat if possible (backport
343
  from master, commit e90739d625b, see :doc:`installation guide
344
  <install-quick>` for details)
345
- Changed unittest coverage report to exclude test scripts
346
- Added script to check version format
347

    
348

    
349
Version 2.3.0
350
-------------
351

    
352
*(Released Wed, 1 Dec 2010)*
353

    
354
Released version 2.3.0~rc1 without any changes.
355

    
356

    
357
Version 2.3.0 rc1
358
-----------------
359

    
360
*(Released Fri, 19 Nov 2010)*
361

    
362
A number of bugfixes and documentation updates:
363

    
364
- Update ganeti-os-interface documentation
365
- Fixed a bug related to duplicate MACs or similar items which should be
366
  unique
367
- Fix breakage in OS state modify
368
- Reinstall instance: disallow offline secondaries (fixes bug related to
369
  OS changing but reinstall failing)
370
- plus all the other fixes between 2.2.1 and 2.2.2
371

    
372

    
373
Version 2.3.0 rc0
374
-----------------
375

    
376
*(Released Tue, 2 Nov 2010)*
377

    
378
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
379
- Fixed master failover race with watcher
380
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
381
  configuration
382
- Accept previously stopped instance for export with instance removal
383
- Simplify and extend the environment variables for instance OS scripts
384
- Added new node flags, ``master_capable`` and ``vm_capable``
385
- Added optional instance disk wiping prior during allocation. This is a
386
  cluster-wide option and can be set/modified using
387
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
388
- Added IPv6 support, see :doc:`design document <design-2.3>` and
389
  :doc:`install-quick`
390
- Added a new watcher option (``--ignore-pause``)
391
- Added option to ignore offline node on instance start/stop
392
  (``--ignore-offline``)
393
- Allow overriding OS parameters with ``gnt-instance reinstall``
394
- Added ability to change node's secondary IP address using ``gnt-node
395
  modify``
396
- Implemented privilege separation for all daemons except
397
  ``ganeti-noded``, see ``configure`` options
398
- Complain if an instance's disk is marked faulty in ``gnt-cluster
399
  verify``
400
- Implemented job priorities (see ``ganeti(7)`` manpage)
401
- Ignore failures while shutting down instances during failover from
402
  offline node
403
- Exit daemon's bootstrap process only once daemon is ready
404
- Export more information via ``LUInstanceQuery``/remote API
405
- Improved documentation, QA and unittests
406
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
407
  restart if the file was created or changed
408
- Added LUXI protocol version sent with each request and response,
409
  allowing detection of server/client mismatches
410
- Moved the Python scripts among gnt-* and ganeti-* into modules
411
- Moved all code related to setting up SSH to an external script,
412
  ``setup-ssh``
413
- Infrastructure changes for node group support in future versions
414

    
415

    
416
Version 2.2.2
417
-------------
418

    
419
*(Released Fri, 19 Nov 2010)*
420

    
421
A few small bugs fixed, and some improvements to the build system:
422

    
423
- Fix documentation regarding conversion to drbd
424
- Fix validation of parameters in cluster modify (``gnt-cluster modify
425
  -B``)
426
- Fix error handling in node modify with multiple changes
427
- Allow remote imports without checked names
428

    
429

    
430
Version 2.2.1
431
-------------
432

    
433
*(Released Tue, 19 Oct 2010)*
434

    
435
- Disable SSL session ID cache in RPC client
436

    
437

    
438
Version 2.2.1 rc1
439
-----------------
440

    
441
*(Released Thu, 14 Oct 2010)*
442

    
443
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
444
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
445
  with GnuTLS
446
- Fix problems with interaction between Curl and Python's HTTP server,
447
  resulting in increased speed in many RPC calls
448
- Improve our release script to prevent breakage with older aclocal and
449
  Python 2.6
450

    
451

    
452
Version 2.2.1 rc0
453
-----------------
454

    
455
*(Released Thu, 7 Oct 2010)*
456

    
457
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
458
  value retrieved from master
459
- Added support for blacklisted or hidden OS definitions
460
- Added simple lock monitor (accessible via (``gnt-debug locks``)
461
- Added support for -mem-path in KVM hypervisor abstraction layer
462
- Allow overriding instance parameters in tool for inter-cluster
463
  instance moves (``tools/move-instance``)
464
- Improved opcode summaries (e.g. in ``gnt-job list``)
465
- Improve consistency of OS listing by sorting it
466
- Documentation updates
467

    
468

    
469
Version 2.2.0.1
470
---------------
471

    
472
*(Released Fri, 8 Oct 2010)*
473

    
474
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
475

    
476

    
477
Version 2.2.0
478
-------------
479

    
480
*(Released Mon, 4 Oct 2010)*
481

    
482
- Fixed regression in ``gnt-instance rename``
483

    
484

    
485
Version 2.2.0 rc2
486
-----------------
487

    
488
*(Released Wed, 22 Sep 2010)*
489

    
490
- Fixed OS_VARIANT variable for OS scripts
491
- Fixed cluster tag operations via RAPI
492
- Made ``setup-ssh`` exit with non-zero code if an error occurred
493
- Disabled RAPI CA checks in watcher
494

    
495

    
496
Version 2.2.0 rc1
497
-----------------
498

    
499
*(Released Mon, 23 Aug 2010)*
500

    
501
- Support DRBD versions of the format "a.b.c.d"
502
- Updated manpages
503
- Re-introduce support for usage from multiple threads in RAPI client
504
- Instance renames and modify via RAPI
505
- Work around race condition between processing and archival in job
506
  queue
507
- Mark opcodes following failed one as failed, too
508
- Job field ``lock_status`` was removed due to difficulties making it
509
  work with the changed job queue in Ganeti 2.2; a better way to monitor
510
  locks is expected for a later 2.2.x release
511
- Fixed dry-run behaviour with many commands
512
- Support ``ssh-agent`` again when adding nodes
513
- Many additional bugfixes
514

    
515

    
516
Version 2.2.0 rc0
517
-----------------
518

    
519
*(Released Fri, 30 Jul 2010)*
520

    
521
Important change: the internal RPC mechanism between Ganeti nodes has
522
changed from using a home-grown http library (based on the Python base
523
libraries) to use the PycURL library. This requires that PycURL is
524
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
525
against GnuTLS by default. cURL's support for GnuTLS had known issues
526
before cURL 7.21.0 and we recommend using the latest cURL release or
527
linking against OpenSSL. Most other distributions already link PycURL
528
and cURL against OpenSSL. The command::
529

    
530
  python -c 'import pycurl; print pycurl.version'
531

    
532
can be used to determine the libraries PycURL and cURL are linked
533
against.
534

    
535
Other significant changes:
536

    
537
- Rewrote much of the internals of the job queue, in order to achieve
538
  better parallelism; this decouples job query operations from the job
539
  processing, and it should allow much nicer behaviour of the master
540
  daemon under load, and it also has uncovered some long-standing bugs
541
  related to the job serialisation (now fixed)
542
- Added a default iallocator setting to the cluster parameters,
543
  eliminating the need to always pass nodes or an iallocator for
544
  operations that require selection of new node(s)
545
- Added experimental support for the LXC virtualization method
546
- Added support for OS parameters, which allows the installation of
547
  instances to pass parameter to OS scripts in order to customise the
548
  instance
549
- Added a hypervisor parameter controlling the migration type (live or
550
  non-live), since hypervisors have various levels of reliability; this
551
  has renamed the 'live' parameter to 'mode'
552
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
553
  logical volumes, meaning that cluster verify will ignore them and not
554
  flag their presence as errors
555
- The watcher will now reset the error count for failed instances after
556
  8 hours, thus allowing self-healing if the problem that caused the
557
  instances to be down/fail to start has cleared in the meantime
558
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
559
  check for, and warn, if the drbd module parameter ``usermode_helper``
560
  is not consistent with the cluster-wide setting; this is needed to
561
  make diagnose easier of failed drbd creations
562
- Started adding base IPv6 support, but this is not yet
563
  enabled/available for use
564
- Rename operations (cluster, instance) will now return the new name,
565
  which is especially useful if a short name was passed in
566
- Added support for instance migration in RAPI
567
- Added a tool to pre-configure nodes for the SSH setup, before joining
568
  them to the cluster; this will allow in the future a simplified model
569
  for node joining (but not yet fully enabled in 2.2); this needs the
570
  paramiko python library
571
- Fixed handling of name-resolving errors
572
- Fixed consistency of job results on the error path
573
- Fixed master-failover race condition when executed multiple times in
574
  sequence
575
- Fixed many bugs related to the job queue (mostly introduced during the
576
  2.2 development cycle, so not all are impacting 2.1)
577
- Fixed instance migration with missing disk symlinks
578
- Fixed handling of unknown jobs in ``gnt-job archive``
579
- And many other small fixes/improvements
580

    
581
Internal changes:
582

    
583
- Enhanced both the unittest and the QA coverage
584
- Switched the opcode validation to a generic model, and extended the
585
  validation to all opcode parameters
586
- Changed more parts of the code that write shell scripts to use the
587
  same class for this
588
- Switched the master daemon to use the asyncore library for the Luxi
589
  server endpoint
590

    
591

    
592
Version 2.2.0 beta 0
593
--------------------
594

    
595
*(Released Thu, 17 Jun 2010)*
596

    
597
- Added tool (``move-instance``) and infrastructure to move instances
598
  between separate clusters (see :doc:`separate documentation
599
  <move-instance>` and :doc:`design document <design-2.2>`)
600
- Added per-request RPC timeout
601
- RAPI now requires a Content-Type header for requests with a body (e.g.
602
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
603
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
604
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
605
  reachable
606
- Implemented initial support for running Ganeti daemons as separate
607
  users, see configure-time flags ``--with-user-prefix`` and
608
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
609
  time)
610
- Instances can be removed after export (``gnt-backup export
611
  --remove-instance``)
612
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
613
  key (instead of 1024 bit)
614
- Added new cluster configuration file for cluster domain secret
615
- Import/export now use SSL instead of SSH
616
- Added support for showing estimated time when exporting an instance,
617
  see the ``ganeti-os-interface(7)`` manpage and look for
618
  ``EXP_SIZE_FD``
619

    
620

    
621
Version 2.1.8
622
-------------
623

    
624
*(Released Tue, 16 Nov 2010)*
625

    
626
Some more bugfixes. Unless critical bugs occur, this will be the last
627
2.1 release:
628

    
629
- Fix case of MAC special-values
630
- Fix mac checker regex
631
- backend: Fix typo causing "out of range" error
632
- Add missing --units in gnt-instance list man page
633

    
634

    
635
Version 2.1.7
636
-------------
637

    
638
*(Released Tue, 24 Aug 2010)*
639

    
640
Bugfixes only:
641
  - Don't ignore secondary node silently on non-mirrored disk templates
642
    (issue 113)
643
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
644
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
645
  - Properly document the usb_mouse parameter
646
  - Fix path in ganeti-rapi(8) (issue 116)
647
  - Adjust error message when the ganeti user's .ssh directory is
648
    missing
649
  - Add same-node-check when changing the disk template to drbd
650

    
651

    
652
Version 2.1.6
653
-------------
654

    
655
*(Released Fri, 16 Jul 2010)*
656

    
657
Bugfixes only:
658
  - Add an option to only select some reboot types during qa/burnin.
659
    (on some hypervisors consequent reboots are not supported)
660
  - Fix infrequent race condition in master failover. Sometimes the old
661
    master ip address would be still detected as up for a short time
662
    after it was removed, causing failover to fail.
663
  - Decrease mlockall warnings when the ctypes module is missing. On
664
    Python 2.4 we support running even if no ctypes module is installed,
665
    but we were too verbose about this issue.
666
  - Fix building on old distributions, on which man doesn't have a
667
    --warnings option.
668
  - Fix RAPI not to ignore the MAC address on instance creation
669
  - Implement the old instance creation format in the RAPI client.
670

    
671

    
672
Version 2.1.5
673
-------------
674

    
675
*(Released Thu, 01 Jul 2010)*
676

    
677
A small bugfix release:
678
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
679
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
680
    a non-existing option
681
  - Fix instance create: the --force-variant option was ignored
682
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
683
  - Fix modify node storage with non-FQDN arguments
684
  - Fix RAPI client to authenticate under Python 2.6 when used
685
    for more than 5 requests needing authentication
686
  - Fix gnt-instance modify -t (storage) giving a wrong error message
687
    when converting a non-shutdown drbd instance to plain
688

    
689

    
690
Version 2.1.4
691
-------------
692

    
693
*(Released Fri, 18 Jun 2010)*
694

    
695
A small bugfix release:
696

    
697
  - Fix live migration of KVM instances started with older Ganeti
698
    versions which had fewer hypervisor parameters
699
  - Fix gnt-instance grow-disk on down instances
700
  - Fix an error-reporting bug during instance migration
701
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
702
    silently ignoring broken ones
703
  - Fix an RPC error reporting bug affecting, for example, RAPI client
704
    users
705
  - Fix bug triggered by different API version os-es on different nodes
706
  - Fix a bug in instance startup with custom hvparams: OS level
707
    parameters would fail to be applied.
708
  - Fix the RAPI client under Python 2.6 (but more work is needed to
709
    make it work completely well with OpenSSL)
710
  - Fix handling of errors when resolving names from DNS
711

    
712

    
713
Version 2.1.3
714
-------------
715

    
716
*(Released Thu, 3 Jun 2010)*
717

    
718
A medium sized development cycle. Some new features, and some
719
fixes/small improvements/cleanups.
720

    
721
Significant features
722
~~~~~~~~~~~~~~~~~~~~
723

    
724
The node deamon now tries to mlock itself into memory, unless the
725
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
726
its logs, and falls back to console logging. This allows emergency
727
features such as ``gnt-node powercycle`` to work even in the event of a
728
broken node disk (tested offlining the disk hosting the node's
729
filesystem and dropping its memory caches; don't try this at home)
730

    
731
KVM: add vhost-net acceleration support. It can be tested with a new
732
enough version of the kernel and of qemu-kvm.
733

    
734
KVM: Add instance chrooting feature. If you use privilege dropping for
735
your VMs you can also now force them to chroot to an empty directory,
736
before starting the emulated guest.
737

    
738
KVM: Add maximum migration bandwith and maximum downtime tweaking
739
support (requires a new-enough version of qemu-kvm).
740

    
741
Cluster verify will now warn if the master node doesn't have the master
742
ip configured on it.
743

    
744
Add a new (incompatible) instance creation request format to RAPI which
745
supports all parameters (previously only a subset was supported, and it
746
wasn't possible to extend the old format to accomodate all the new
747
features. The old format is still supported, and a client can check for
748
this feature, before using it, by checking for its presence in the
749
``features`` RAPI resource.
750

    
751
Now with ancient latin support. Try it passing the ``--roman`` option to
752
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
753
(requires the python-roman module to be installed, in order to work).
754

    
755
Other changes
756
~~~~~~~~~~~~~
757

    
758
As usual many internal code refactorings, documentation updates, and
759
such. Among others:
760

    
761
  - Lots of improvements and cleanups to the experimental Remote API
762
    (RAPI) client library.
763
  - A new unit test suite for the core daemon libraries.
764
  - A fix to creating missing directories makes sure the umask is not
765
    applied anymore. This enforces the same directory permissions
766
    everywhere.
767
  - Better handling terminating daemons with ctrl+c (used when running
768
    them in debugging mode).
769
  - Fix a race condition in live migrating a KVM instance, when stat()
770
    on the old proc status file returned EINVAL, which is an unexpected
771
    value.
772
  - Fixed manpage checking with newer man and utf-8 charachters. But now
773
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
774

    
775

    
776
Version 2.1.2.1
777
---------------
778

    
779
*(Released Fri, 7 May 2010)*
780

    
781
Fix a bug which prevented untagged KVM instances from starting.
782

    
783

    
784
Version 2.1.2
785
-------------
786

    
787
*(Released Fri, 7 May 2010)*
788

    
789
Another release with a long development cycle, during which many
790
different features were added.
791

    
792
Significant features
793
~~~~~~~~~~~~~~~~~~~~
794

    
795
The KVM hypervisor now can run the individual instances as non-root, to
796
reduce the impact of a VM being hijacked due to bugs in the
797
hypervisor. It is possible to run all instances as a single (non-root)
798
user, to manually specify a user for each instance, or to dynamically
799
allocate a user out of a cluster-wide pool to each instance, with the
800
guarantee that no two instances will run under the same user ID on any
801
given node.
802

    
803
An experimental RAPI client library, that can be used standalone
804
(without the other Ganeti libraries), is provided in the source tree as
805
``lib/rapi/client.py``. Note this client might change its interface in
806
the future, as we iterate on its capabilities.
807

    
808
A new command, ``gnt-cluster renew-crypto`` has been added to easily
809
replace the cluster's certificates and crypto keys. This might help in
810
case they have been compromised, or have simply expired.
811

    
812
A new disk option for instance creation has been added that allows one
813
to "adopt" currently existing logical volumes, with data
814
preservation. This should allow easier migration to Ganeti from
815
unmanaged (or managed via other software) instances.
816

    
817
Another disk improvement is the possibility to convert between redundant
818
(DRBD) and plain (LVM) disk configuration for an instance. This should
819
allow better scalability (starting with one node and growing the
820
cluster, or shrinking a two-node cluster to one node).
821

    
822
A new feature that could help with automated node failovers has been
823
implemented: if a node sees itself as offline (by querying the master
824
candidates), it will try to shutdown (hard) all instances and any active
825
DRBD devices. This reduces the risk of duplicate instances if an
826
external script automatically failovers the instances on such nodes. To
827
enable this, the cluster parameter ``maintain_node_health`` should be
828
enabled; in the future this option (per the name) will enable other
829
automatic maintenance features.
830

    
831
Instance export/import now will reuse the original instance
832
specifications for all parameters; that means exporting an instance,
833
deleting it and the importing it back should give an almost identical
834
instance. Note that the default import behaviour has changed from
835
before, where it created only one NIC; now it recreates the original
836
number of NICs.
837

    
838
Cluster verify has added a few new checks: SSL certificates validity,
839
/etc/hosts consistency across the cluster, etc.
840

    
841
Other changes
842
~~~~~~~~~~~~~
843

    
844
As usual, many internal changes were done, documentation fixes,
845
etc. Among others:
846

    
847
- Fixed cluster initialization with disabled cluster storage (regression
848
  introduced in 2.1.1)
849
- File-based storage supports growing the disks
850
- Fixed behaviour of node role changes
851
- Fixed cluster verify for some corner cases, plus a general rewrite of
852
  cluster verify to allow future extension with more checks
853
- Fixed log spamming by watcher and node daemon (regression introduced
854
  in 2.1.1)
855
- Fixed possible validation issues when changing the list of enabled
856
  hypervisors
857
- Fixed cleanup of /etc/hosts during node removal
858
- Fixed RAPI response for invalid methods
859
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
860
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
861
  from ide disks, etc.)
862
- Allow OS changes without re-installation (to record a changed OS
863
  outside of Ganeti, or to allow OS renames)
864
- Allow instance creation without OS installation (useful for example if
865
  the OS will be installed manually, or restored from a backup not in
866
  Ganeti format)
867
- Implemented option to make cluster ``copyfile`` use the replication
868
  network
869
- Added list of enabled hypervisors to ssconf (possibly useful for
870
  external scripts)
871
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
872
  1.2 clusters
873
- A partial form of node re-IP is possible via node readd, which now
874
  allows changed node primary IP
875
- Command line utilities now show an informational message if the job is
876
  waiting for a lock
877
- The logs of the master daemon now show the PID/UID/GID of the
878
  connected client
879

    
880

    
881
Version 2.1.1
882
-------------
883

    
884
*(Released Fri, 12 Mar 2010)*
885

    
886
During the 2.1.0 long release candidate cycle, a lot of improvements and
887
changes have accumulated with were released later as 2.1.1.
888

    
889
Major changes
890
~~~~~~~~~~~~~
891

    
892
The node evacuate command (``gnt-node evacuate``) was significantly
893
rewritten, and as such the IAllocator protocol was changed - a new
894
request type has been added. This unfortunate change during a stable
895
series is designed to improve performance of node evacuations; on
896
clusters with more than about five nodes and which are well-balanced,
897
evacuation should proceed in parallel for all instances of the node
898
being evacuated. As such, any existing IAllocator scripts need to be
899
updated, otherwise the above command will fail due to the unknown
900
request. The provided "dumb" allocator has not been updated; but the
901
ganeti-htools package supports the new protocol since version 0.2.4.
902

    
903
Another important change is increased validation of node and instance
904
names. This might create problems in special cases, if invalid host
905
names are being used.
906

    
907
Also, a new layer of hypervisor parameters has been added, that sits at
908
OS level between the cluster defaults and the instance ones. This allows
909
customisation of virtualization parameters depending on the installed
910
OS. For example instances with OS 'X' may have a different KVM kernel
911
(or any other parameter) than the cluster defaults. This is intended to
912
help managing a multiple OSes on the same cluster, without manual
913
modification of each instance's parameters.
914

    
915
A tool for merging clusters, ``cluster-merge``, has been added in the
916
tools sub-directory.
917

    
918
Bug fixes
919
~~~~~~~~~
920

    
921
- Improved the int/float conversions that should make the code more
922
  robust in face of errors from the node daemons
923
- Fixed the remove node code in case of internal configuration errors
924
- Fixed the node daemon behaviour in face of inconsistent queue
925
  directory (e.g. read-only file-system where we can't open the files
926
  read-write, etc.)
927
- Fixed the behaviour of gnt-node modify for master candidate demotion;
928
  now it either aborts cleanly or, if given the new "auto_promote"
929
  parameter, will automatically promote other nodes as needed
930
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
931
  completely prevent Ganeti from working
932
- Fixed bug for instance export when not all disks were successfully
933
  exported
934
- Fixed behaviour of node add when the new node is slow in starting up
935
  the node daemon
936
- Fixed handling of signals in the LUXI client, which should improve
937
  behaviour of command-line scripts
938
- Added checks for invalid node/instance names in the configuration (now
939
  flagged during cluster verify)
940
- Fixed watcher behaviour for disk activation errors
941
- Fixed two potentially endless loops in http library, which led to the
942
  RAPI daemon hanging and consuming 100% CPU in some cases
943
- Fixed bug in RAPI daemon related to hashed passwords
944
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
945
  instances
946
- Enhanced compatibility with non-Debian OSes, but not using absolute
947
  path in some commands and allowing customisation of the ssh
948
  configuration directory
949
- Fixed possible future issue with new Python versions by abiding to the
950
  proper use of ``__slots__`` attribute on classes
951
- Added checks that should prevent directory traversal attacks
952
- Many documentation fixes based on feedback from users
953

    
954
New features
955
~~~~~~~~~~~~
956

    
957
- Added an "early_release" more for instance replace disks and node
958
  evacuate, where we release locks earlier and thus allow higher
959
  parallelism within the cluster
960
- Added watcher hooks, intended to allow the watcher to restart other
961
  daemons (e.g. from the ganeti-nbma project), but they can be used of
962
  course for any other purpose
963
- Added a compile-time disable for DRBD barriers, to increase
964
  performance if the administrator trusts the power supply or the
965
  storage system to not lose writes
966
- Added the option of using syslog for logging instead of, or in
967
  addition to, Ganeti's own log files
968
- Removed boot restriction for paravirtual NICs for KVM, recent versions
969
  can indeed boot from a paravirtual NIC
970
- Added a generic debug level for many operations; while this is not
971
  used widely yet, it allows one to pass the debug value all the way to
972
  the OS scripts
973
- Enhanced the hooks environment for instance moves (failovers,
974
  migrations) where the primary/secondary nodes changed during the
975
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
976
- Enhanced data validations for many user-supplied values; one important
977
  item is the restrictions imposed on instance and node names, which
978
  might reject some (invalid) host names
979
- Add a configure-time option to disable file-based storage, if it's not
980
  needed; this allows greater security separation between the master
981
  node and the other nodes from the point of view of the inter-node RPC
982
  protocol
983
- Added user notification in interactive tools if job is waiting in the
984
  job queue or trying to acquire locks
985
- Added log messages when a job is waiting for locks
986
- Added filtering by node tags in instance operations which admit
987
  multiple instances (start, stop, reboot, reinstall)
988
- Added a new tool for cluster mergers, ``cluster-merge``
989
- Parameters from command line which are of the form ``a=b,c=d`` can now
990
  use backslash escapes to pass in values which contain commas,
991
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
992
  ``b,c``
993
- For KVM, the instance name is the first parameter passed to KVM, so
994
  that it's more visible in the process list
995

    
996

    
997
Version 2.1.0
998
-------------
999

    
1000
*(Released Tue, 2 Mar 2010)*
1001

    
1002
Ganeti 2.1 brings many improvements with it. Major changes:
1003

    
1004
- Added infrastructure to ease automated disk repairs
1005
- Added new daemon to export configuration data in a cheaper way than
1006
  using the remote API
1007
- Instance NICs can now be routed instead of being associated with a
1008
  networking bridge
1009
- Improved job locking logic to reduce impact of jobs acquiring multiple
1010
  locks waiting for other long-running jobs
1011

    
1012
In-depth implementation details can be found in the Ganeti 2.1 design
1013
document.
1014

    
1015
Details
1016
~~~~~~~
1017

    
1018
- Added chroot hypervisor
1019
- Added more options to xen-hvm hypervisor (``kernel_path`` and
1020
  ``device_model``)
1021
- Added more options to xen-pvm hypervisor (``use_bootloader``,
1022
  ``bootloader_path`` and ``bootloader_args``)
1023
- Added the ``use_localtime`` option for the xen-hvm and kvm
1024
  hypervisors, and the default value for this has changed to false (in
1025
  2.0 xen-hvm always enabled it)
1026
- Added luxi call to submit multiple jobs in one go
1027
- Added cluster initialization option to not modify ``/etc/hosts``
1028
  file on nodes
1029
- Added network interface parameters
1030
- Added dry run mode to some LUs
1031
- Added RAPI resources:
1032

    
1033
  - ``/2/instances/[instance_name]/info``
1034
  - ``/2/instances/[instance_name]/replace-disks``
1035
  - ``/2/nodes/[node_name]/evacuate``
1036
  - ``/2/nodes/[node_name]/migrate``
1037
  - ``/2/nodes/[node_name]/role``
1038
  - ``/2/nodes/[node_name]/storage``
1039
  - ``/2/nodes/[node_name]/storage/modify``
1040
  - ``/2/nodes/[node_name]/storage/repair``
1041

    
1042
- Added OpCodes to evacuate or migrate all instances on a node
1043
- Added new command to list storage elements on nodes (``gnt-node
1044
  list-storage``) and modify them (``gnt-node modify-storage``)
1045
- Added new ssconf files with master candidate IP address
1046
  (``ssconf_master_candidates_ips``), node primary IP address
1047
  (``ssconf_node_primary_ips``) and node secondary IP address
1048
  (``ssconf_node_secondary_ips``)
1049
- Added ``ganeti-confd`` and a client library to query the Ganeti
1050
  configuration via UDP
1051
- Added ability to run hooks after cluster initialization and before
1052
  cluster destruction
1053
- Added automatic mode for disk replace (``gnt-instance replace-disks
1054
  --auto``)
1055
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
1056
  after catastrophic data-loss
1057
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
1058
  groups
1059
- Added ``gnt-instance move`` command to move instances
1060
- Added ``gnt-cluster watcher`` command to control watcher
1061
- Added ``gnt-node powercycle`` command to powercycle nodes
1062
- Added new job status field ``lock_status``
1063
- Added parseable error codes to cluster verification (``gnt-cluster
1064
  verify --error-codes``) and made output less verbose (use
1065
  ``--verbose`` to restore previous behaviour)
1066
- Added UUIDs to the main config entities (cluster, nodes, instances)
1067
- Added support for OS variants
1068
- Added support for hashed passwords in the Ganeti remote API users file
1069
  (``rapi_users``)
1070
- Added option to specify maximum timeout on instance shutdown
1071
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
1072
- Added new helper script to start and stop Ganeti daemons
1073
  (``daemon-util``), with the intent to reduce the work necessary to
1074
  adjust Ganeti for non-Debian distributions and to start/stop daemons
1075
  from one place
1076
- Added more unittests
1077
- Fixed critical bug in ganeti-masterd startup
1078
- Removed the configure-time ``kvm-migration-port`` parameter, this is
1079
  now customisable at the cluster level for both the KVM and Xen
1080
  hypervisors using the new ``migration_port`` parameter
1081
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
1082
  reinstalling an instance
1083
- Allowed ``@`` in tag names
1084
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
1085
- Many documentation updates
1086
- Distribute hypervisor files on ``gnt-cluster redist-conf``
1087
- ``gnt-instance reinstall`` can now reinstall multiple instances
1088
- Updated many command line parameters
1089
- Introduced new OS API version 15
1090
- No longer support a default hypervisor
1091
- Treat virtual LVs as inexistent
1092
- Improved job locking logic to reduce lock contention
1093
- Match instance and node names case insensitively
1094
- Reimplemented bash completion script to be more complete
1095
- Improved burnin
1096

    
1097

    
1098
Version 2.0.6
1099
-------------
1100

    
1101
*(Released Thu, 4 Feb 2010)*
1102

    
1103
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
1104
- Fix a string formatting bug
1105
- Improve safety of the code in some error paths
1106
- Improve data validation in the master of values returned from nodes
1107

    
1108

    
1109
Version 2.0.5
1110
-------------
1111

    
1112
*(Released Thu, 17 Dec 2009)*
1113

    
1114
- Fix security issue due to missing validation of iallocator names; this
1115
  allows local and remote execution of arbitrary executables
1116
- Fix failure of gnt-node list during instance removal
1117
- Ship the RAPI documentation in the archive
1118

    
1119

    
1120
Version 2.0.4
1121
-------------
1122

    
1123
*(Released Wed, 30 Sep 2009)*
1124

    
1125
- Fixed many wrong messages
1126
- Fixed a few bugs related to the locking library
1127
- Fixed MAC checking at instance creation time
1128
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
1129
- Fixed a few issues related to signal handling in both daemons and
1130
  scripts
1131
- Fixed the example startup script provided
1132
- Fixed insserv dependencies in the example startup script (patch from
1133
  Debian)
1134
- Fixed handling of drained nodes in the iallocator framework
1135
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
1136
  #528618)
1137
- Fixed error related to invalid job IDs in job polling
1138
- Fixed job/opcode persistence on unclean master shutdown
1139
- Fixed handling of partial job processing after unclean master
1140
  shutdown
1141
- Fixed error reporting from LUs, previously all errors were converted
1142
  into execution errors
1143
- Fixed error reporting from burnin
1144
- Decreased significantly the memory usage of the job queue
1145
- Optimised slightly multi-job submission
1146
- Optimised slightly opcode loading
1147
- Backported the multi-job submit framework from the development
1148
  branch; multi-instance start and stop should be faster
1149
- Added script to clean archived jobs after 21 days; this will reduce
1150
  the size of the queue directory
1151
- Added some extra checks in disk size tracking
1152
- Added an example ethers hook script
1153
- Added a cluster parameter that prevents Ganeti from modifying of
1154
  /etc/hosts
1155
- Added more node information to RAPI responses
1156
- Added a ``gnt-job watch`` command that allows following the ouput of a
1157
  job
1158
- Added a bind-address option to ganeti-rapi
1159
- Added more checks to the configuration verify
1160
- Enhanced the burnin script such that some operations can be retried
1161
  automatically
1162
- Converted instance reinstall to multi-instance model
1163

    
1164

    
1165
Version 2.0.3
1166
-------------
1167

    
1168
*(Released Fri, 7 Aug 2009)*
1169

    
1170
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
1171
  to allow using the pre-2.0.2 behaviour in activation, if any existing
1172
  instances have mismatched disk sizes in the configuration
1173
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
1174
  any configuration mismatches for disk sizes
1175
- Added ``gnt-master cluste-failover --no-voting`` to allow master
1176
  failover to work on two-node clusters
1177
- Fixed the ``--net`` option of ``gnt-backup import``, which was
1178
  unusable
1179
- Fixed detection of OS script errors in ``gnt-backup export``
1180
- Fixed exit code of ``gnt-backup export``
1181

    
1182

    
1183
Version 2.0.2
1184
-------------
1185

    
1186
*(Released Fri, 17 Jul 2009)*
1187

    
1188
- Added experimental support for stripped logical volumes; this should
1189
  enhance performance but comes with a higher complexity in the block
1190
  device handling; stripping is only enabled when passing
1191
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
1192
  affected even in the non-stripped mode
1193
- Improved resiliency against transient failures at the end of DRBD
1194
  resyncs, and in general of DRBD resync checks
1195
- Fixed a couple of issues with exports and snapshot errors
1196
- Fixed a couple of issues in instance listing
1197
- Added display of the disk size in ``gnt-instance info``
1198
- Fixed checking for valid OSes in instance creation
1199
- Fixed handling of the "vcpus" parameter in instance listing and in
1200
  general of invalid parameters
1201
- Fixed http server library, and thus RAPI, to handle invalid
1202
  username/password combinations correctly; this means that now they
1203
  report unauthorized for queries too, not only for modifications,
1204
  allowing earlier detect of configuration problems
1205
- Added a new "role" node list field, equivalent to the master/master
1206
  candidate/drained/offline flags combinations
1207
- Fixed cluster modify and changes of candidate pool size
1208
- Fixed cluster verify error messages for wrong files on regular nodes
1209
- Fixed a couple of issues with node demotion from master candidate role
1210
- Fixed node readd issues
1211
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
1212
- Added a new ``--no-voting`` option for masterfailover to fix failover
1213
  on two-nodes clusters when the former master node is unreachable
1214
- Added instance reinstall over RAPI
1215

    
1216

    
1217
Version 2.0.1
1218
-------------
1219

    
1220
*(Released Tue, 16 Jun 2009)*
1221

    
1222
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
1223
  allow re-adding the start in single-user option (regression from 1.2)
1224
- the watcher writes the instance status to a file, to allow monitoring
1225
  to report the instance status (from the master) based on cached
1226
  results of the watcher's queries; while this can get stale if the
1227
  watcher is being locked due to other work on the cluster, this is
1228
  still an improvement
1229
- the watcher now also restarts the node daemon and the rapi daemon if
1230
  they died
1231
- fixed the watcher to handle full and drained queue cases
1232
- hooks export more instance data in the environment, which helps if
1233
  hook scripts need to take action based on the instance's properties
1234
  (no longer need to query back into ganeti)
1235
- instance failovers when the instance is stopped do not check for free
1236
  RAM, so that failing over a stopped instance is possible in low memory
1237
  situations
1238
- rapi uses queries for tags instead of jobs (for less job traffic), and
1239
  for cluster tags it won't talk to masterd at all but read them from
1240
  ssconf
1241
- a couple of error handling fixes in RAPI
1242
- drbd handling: improved the error handling of inconsistent disks after
1243
  resync to reduce the frequency of "there are some degraded disks for
1244
  this instance" messages
1245
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
1246
  error handling path called a wrong function name)
1247

    
1248

    
1249
Version 2.0.0 final
1250
-------------------
1251

    
1252
*(Released Wed, 27 May 2009)*
1253

    
1254
- no changes from rc5
1255

    
1256

    
1257
Version 2.0 release candidate 5
1258
-------------------------------
1259

    
1260
*(Released Wed, 20 May 2009)*
1261

    
1262
- fix a couple of bugs (validation, argument checks)
1263
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
1264
- some small improvements to RAPI and IAllocator
1265
- make watcher automatically start the master daemon if down
1266

    
1267

    
1268
Version 2.0 release candidate 4
1269
-------------------------------
1270

    
1271
*(Released Mon, 27 Apr 2009)*
1272

    
1273
- change the OS list to not require locks; this helps with big clusters
1274
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
1275
  volume group is broken
1276
- ``gnt-instance info``, without any arguments, doesn't run for all
1277
  instances anymore; either pass ``--all`` or pass the desired
1278
  instances; this helps against mistakes on big clusters where listing
1279
  the information for all instances takes a long time
1280
- miscellaneous doc and man pages fixes
1281

    
1282

    
1283
Version 2.0 release candidate 3
1284
-------------------------------
1285

    
1286
*(Released Wed, 8 Apr 2009)*
1287

    
1288
- Change the internal locking model of some ``gnt-node`` commands, in
1289
  order to reduce contention (and blocking of master daemon) when
1290
  batching many creation/reinstall jobs
1291
- Fixes to Xen soft reboot
1292
- No longer build documentation at build time, instead distribute it in
1293
  the archive, in order to reduce the need for the whole docbook/rst
1294
  toolchains
1295

    
1296

    
1297
Version 2.0 release candidate 2
1298
-------------------------------
1299

    
1300
*(Released Fri, 27 Mar 2009)*
1301

    
1302
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
1303
- Fix watcher startup sequence, improves the behaviour of busy clusters
1304
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
1305
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
1306
  bind address and other places
1307
- Some documentation fixes and updates
1308

    
1309

    
1310
Version 2.0 release candidate 1
1311
-------------------------------
1312

    
1313
*(Released Mon, 2 Mar 2009)*
1314

    
1315
- More documentation updates, now all docs should be more-or-less
1316
  up-to-date
1317
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
1318
  etc.)
1319
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
1320
  and KVM)
1321
- Fix an issue related to $libdir/run/ganeti and cluster creation
1322

    
1323

    
1324
Version 2.0 beta 2
1325
------------------
1326

    
1327
*(Released Thu, 19 Feb 2009)*
1328

    
1329
- Xen PVM and KVM have switched the default value for the instance root
1330
  disk to the first partition on the first drive, instead of the whole
1331
  drive; this means that the OS installation scripts must be changed
1332
  accordingly
1333
- Man pages have been updated
1334
- RAPI has been switched by default to HTTPS, and the exported functions
1335
  should all work correctly
1336
- RAPI v1 has been removed
1337
- Many improvements to the KVM hypervisor
1338
- Block device errors are now better reported
1339
- Many other bugfixes and small improvements
1340

    
1341

    
1342
Version 2.0 beta 1
1343
------------------
1344

    
1345
*(Released Mon, 26 Jan 2009)*
1346

    
1347
- Version 2 is a general rewrite of the code and therefore the
1348
  differences are too many to list, see the design document for 2.0 in
1349
  the ``doc/`` subdirectory for more details
1350
- In this beta version there is not yet a migration path from 1.2 (there
1351
  will be one in the final 2.0 release)
1352
- A few significant changes are:
1353

    
1354
  - all commands are executed by a daemon (``ganeti-masterd``) and the
1355
    various ``gnt-*`` commands are just front-ends to it
1356
  - all the commands are entered into, and executed from a job queue,
1357
    see the ``gnt-job(8)`` manpage
1358
  - the RAPI daemon supports read-write operations, secured by basic
1359
    HTTP authentication on top of HTTPS
1360
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
1361
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
1362
    to migrate to DRBD 8 first while still running Ganeti 1.2)
1363
  - DRBD devices are using statically allocated minor numbers, which
1364
    will be assigned to existing instances during the migration process
1365
  - there is support for both Xen PVM and Xen HVM instances running on
1366
    the same cluster
1367
  - KVM virtualization is supported too
1368
  - file-based storage has been implemented, which means that it is
1369
    possible to run the cluster without LVM and DRBD storage, for
1370
    example using a shared filesystem exported from shared storage (and
1371
    still have live migration)
1372

    
1373

    
1374
Version 1.2.7
1375
-------------
1376

    
1377
*(Released Tue, 13 Jan 2009)*
1378

    
1379
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
1380
- Reuse the old instance mac address by default on instance import, if
1381
  the instance name is the same.
1382
- Handle situations in which the node info rpc returns incomplete
1383
  results (issue 46)
1384
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
1385
- Improved version of batcher:
1386

    
1387
  - state file support
1388
  - instance mac address support
1389
  - support for HVM clusters/instances
1390

    
1391
- Add an option to show the number of cpu sockets and nodes in
1392
  ``gnt-node list``
1393
- Support OSes that handle more than one version of the OS api (but do
1394
  not change the current API in any other way)
1395
- Fix ``gnt-node migrate``
1396
- ``gnt-debug`` man page
1397
- Fixes various more typos and small issues
1398
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
1399

    
1400

    
1401
Version 1.2.6
1402
-------------
1403

    
1404
*(Released Wed, 24 Sep 2008)*
1405

    
1406
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
1407
  type of disk exported to fully virtualized instances.
1408
- provide access to the serial console of HVM instances
1409
- instance auto_balance flag, set by default. If turned off it will
1410
  avoid warnings on cluster verify if there is not enough memory to fail
1411
  over an instance. in the future it will prevent automatically failing
1412
  it over when we will support that.
1413
- batcher tool for instance creation, see ``tools/README.batcher``
1414
- ``gnt-instance reinstall --select-os`` to interactively select a new
1415
  operating system when reinstalling an instance.
1416
- when changing the memory amount on instance modify a check has been
1417
  added that the instance will be able to start. also warnings are
1418
  emitted if the instance will not be able to fail over, if auto_balance
1419
  is true.
1420
- documentation fixes
1421
- sync fields between ``gnt-instance list/modify/add/import``
1422
- fix a race condition in drbd when the sync speed was set after giving
1423
  the device a remote peer.
1424

    
1425

    
1426
Version 1.2.5
1427
-------------
1428

    
1429
*(Released Tue, 22 Jul 2008)*
1430

    
1431
- note: the allowed size and number of tags per object were reduced
1432
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
1433
- fixed twisted 8.x compatibility
1434
- fixed ``gnt-instance replace-disks`` with iallocator
1435
- add TCP keepalives on twisted connections to detect restarted nodes
1436
- disk increase support, see ``gnt-instance grow-disk``
1437
- implement bulk node/instance query for RAPI
1438
- add tags in node/instance listing (optional)
1439
- experimental migration (and live migration) support, read the man page
1440
  for ``gnt-instance migrate``
1441
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
1442
  has some small improvements in handling its state file
1443

    
1444

    
1445
Version 1.2.4
1446
-------------
1447

    
1448
*(Released Fri, 13 Jun 2008)*
1449

    
1450
- Experimental readonly, REST-based remote API implementation;
1451
  automatically started on master node, TCP port 5080, if enabled by
1452
  ``--enable-rapi`` parameter to configure script.
1453
- Instance allocator support. Add and import instance accept a
1454
  ``--iallocator`` parameter, and call that instance allocator to decide
1455
  which node to use for the instance. The iallocator document describes
1456
  what's expected from an allocator script.
1457
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
1458
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
1459
  node is lost there is still enough memory to fail over the instances
1460
  that reside on it.
1461
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
1462
  ``gnt-cluster verify``, to check for site-specific compliance. All the
1463
  hooks will run, and their output, if any, will be displayed. Any
1464
  failing hook will make the verification return an error value.
1465
- ``gnt-cluster verify`` now checks that its peers are reachable on the
1466
  primary and secondary interfaces
1467
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
1468
  that is still declared as part of the cluster and has failed.
1469
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
1470
  specifying output fields, that just adds the chosen fields to the
1471
  default ones.
1472
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
1473
  export from the filesystem.
1474
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
1475
  have been added. Using them you can enable/disable acpi and pae
1476
  support, and specify a path for a cd image to be exported to the
1477
  instance. These parameters as the name suggest only work on HVM
1478
  clusters.
1479
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
1480
  PAE support will be set to the previously hardcoded values, but the
1481
  (previously hardcoded) path to the CDROM ISO image will be unset and
1482
  if required, needs to be set manually with ``gnt-instance modify``
1483
  after the upgrade.
1484
- The address to which an instance's VNC console is bound is now
1485
  selectable per-instance, rather than being cluster wide. Of course
1486
  this only applies to instances controlled via VNC, so currently just
1487
  applies to HVM clusters.
1488

    
1489

    
1490
Version 1.2.3
1491
-------------
1492

    
1493
*(Released Mon, 18 Feb 2008)*
1494

    
1495
- more tweaks to the disk activation code (especially helpful for DRBD)
1496
- change the default ``gnt-instance list`` output format, now there is
1497
  one combined status field (see the manpage for the exact values this
1498
  field will have)
1499
- some more fixes for the mac export to hooks change
1500
- make Ganeti not break with DRBD 8.2.x (which changed the version
1501
  format in ``/proc/drbd``) (issue 24)
1502
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
1503
  template, allowing migration from DRBD0.7+MD to DRBD8
1504

    
1505

    
1506
Version 1.2.2
1507
-------------
1508

    
1509
*(Released Wed, 30 Jan 2008)*
1510

    
1511
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
1512
  support (issue 23)
1513
- add command aliases infrastructure and a few aliases
1514
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
1515
  man pages and the ``--help`` option of ``gnt-node
1516
  list``/``gnt-instance list``
1517
- fix ``gnt-backup list`` with down nodes (issue 21)
1518
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
1519
- fix the dist archive and add a check for including svn/git files in
1520
  the future
1521
- some developer-related changes: improve the burnin and the QA suite,
1522
  add an upload script for testing during development
1523

    
1524

    
1525
Version 1.2.1
1526
-------------
1527

    
1528
*(Released Wed, 16 Jan 2008)*
1529

    
1530
- experimental HVM support, read the install document, section
1531
  "Initializing the cluster"
1532
- allow for the PVM hypervisor per-instance kernel and initrd paths
1533
- add a new command ``gnt-cluster verify-disks`` which uses a new
1534
  algorithm to improve the reconnection of the DRBD pairs if the device
1535
  on the secondary node has gone away
1536
- make logical volume code auto-activate LVs at disk activation time
1537
- slightly improve the speed of activating disks
1538
- allow specification of the MAC address at instance creation time, and
1539
  changing it later via ``gnt-instance modify``
1540
- fix handling of external commands that generate lots of output on
1541
  stderr
1542
- update documentation with regard to minimum version of DRBD8 supported
1543

    
1544

    
1545
Version 1.2.0
1546
-------------
1547

    
1548
*(Released Tue, 4 Dec 2007)*
1549

    
1550
- Log the ``xm create`` output to the node daemon log on failure (to
1551
  help diagnosing the error)
1552
- In debug mode, log all external commands output if failed to the logs
1553
- Change parsing of lvm commands to ignore stderr
1554

    
1555

    
1556
Version 1.2b3
1557
-------------
1558

    
1559
*(Released Wed, 28 Nov 2007)*
1560

    
1561
- Another round of updates to the DRBD 8 code to deal with more failures
1562
  in the replace secondary node operation
1563
- Some more logging of failures in disk operations (lvm, drbd)
1564
- A few documentation updates
1565
- QA updates
1566

    
1567

    
1568
Version 1.2b2
1569
-------------
1570

    
1571
*(Released Tue, 13 Nov 2007)*
1572

    
1573
- Change configuration file format from Python's Pickle to JSON.
1574
  Upgrading is possible using the cfgupgrade utility.
1575
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
1576
  faster replace disks and is more stable (DRBD 8 has many improvements
1577
  compared to DRBD 0.7)
1578
- Added command line tags support (see man pages for ``gnt-instance``,
1579
  ``gnt-node``, ``gnt-cluster``)
1580
- Added instance rename support
1581
- Added multi-instance startup/shutdown
1582
- Added cluster rename support
1583
- Added ``gnt-node evacuate`` to simplify some node operations
1584
- Added instance reboot operation that can speedup reboot as compared to
1585
  stop and start
1586
- Soften the requirement that hostnames are in FQDN format
1587
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
1588
  reboots
1589
- Removed dependency on debian's patched fping that uses the
1590
  non-standard ``-S`` option
1591
- Now the OS definitions are searched for in multiple, configurable
1592
  paths (easier for distros to package)
1593
- Some changes to the hooks infrastructure (especially the new
1594
  post-configuration update hook)
1595
- Other small bugfixes
1596

    
1597
.. vim: set textwidth=72 syntax=rst :
1598
.. Local Variables:
1599
.. mode: rst
1600
.. fill-column: 72
1601
.. End: