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1
News
2
====
3

    
4

    
5
Version 2.7.0 beta1
6
-------------------
7

    
8
*(unreleased)*
9

    
10
- ``gnt-instance batch-create`` has been changed to use the bulk create
11
  opcode from Ganeti. This lead to incompatible changes in the format of
12
  the JSON file. It's now not a custom dict anymore but a dict
13
  compatible with the ``OpInstanceCreate`` opcode.
14
- Parent directories for file storage need to be listed in
15
  ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
16
  write the file automatically based on old configuration values, but it
17
  can not distribute it across all nodes and the file contents should be
18
  verified. Use ``gnt-cluster copyfile
19
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
20
  upgraded. The reason for requiring this list of paths now is that
21
  before it would have been possible to inject new paths via RPC,
22
  allowing files to be created in arbitrary locations. The RPC protocol
23
  is protected using SSL/X.509 certificates, but as a design principle
24
  Ganeti does not permit arbitrary paths to be passed.
25
- The parsing of the variants file for OSes (see
26
  :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
27
  lines and comment lines (starting with ``#``) are ignored for better
28
  readability.
29
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
30
  longer available. ``gnt-node add`` now invokes a new tool on the
31
  destination node, named ``prepare-node-join``, to configure the SSH
32
  daemon. Paramiko is no longer necessary to configure nodes' SSH
33
  daemons via ``gnt-node add``.
34
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
35
  for RAPI users. It allows granting permissions to query for
36
  information to a specific user without giving
37
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
38
- A new tool named ``node-cleanup`` has been added. It cleans remains of
39
  a cluster from a machine by stopping all daemons, removing
40
  certificates and ssconf files. Unless the ``--no-backup`` option is
41
  given, copies of the certificates are made.
42
- Draining (``gnt-cluster queue drain``) and un-draining the job queue
43
  (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
44
  the flag is not reset after a master failover.
45
- Instance creations now support the use of opportunistic locking,
46
  potentially speeding up the (parallel) creation of multiple instances.
47
  This feature is currently only available via the :doc:`RAPI
48
  <rapi>` interface and when an instance allocator is used. If the
49
  ``opportunistic_locking`` parameter is set the opcode will try to
50
  acquire as many locks as possible, but will not wait for any locks
51
  held by other opcodes. If the not enough resources can be found to
52
  allocate the instance, the temporary error code
53
  :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
54
  retried thereafter, with or without opportunistic locking.
55
- Man pages can now be included when the documentation is built, in
56
  which case the output is in ``doc/man-html``. The configure-time
57
  option is ``--enable-manpages-in-doc``. Sphinx 1.0 or higher is
58
  required.
59

    
60

    
61
Version 2.6.2
62
-------------
63

    
64
*(Released Fri, 21 Dec 2012)*
65

    
66
Important behaviour change: hbal won't rebalance anymore instances which
67
have the ``auto_balance`` attribute set to false. This was the intention
68
all along, but until now it only skipped those from the N+1 memory
69
reservation (DRBD-specific).
70

    
71
A significant number of bug fixes in this release:
72

    
73
- Fixed disk adoption interaction with ipolicy checks.
74
- Fixed networking issues when instances are started, stopped or
75
  migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
76
- Fixed the warning in cluster verify for shared storage instances not
77
  being redundant.
78
- Fixed removal of storage directory on shared file storage (issue 262).
79
- Fixed validation of LVM volume group name in OpClusterSetParams
80
  (``gnt-cluster modify``) (issue 285).
81
- Fixed runtime memory increases (``gnt-instance modify -m``).
82
- Fixed live migration under Xen's ``xl`` mode.
83
- Fixed ``gnt-instance console`` with ``xl``.
84
- Fixed building with newer Haskell compiler/libraries.
85
- Fixed PID file writing in Haskell daemons (confd); this prevents
86
  restart issues if confd was launched manually (outside of
87
  ``daemon-util``) while another copy of it was running
88
- Fixed a type error when doing live migrations with KVM (issue 297) and
89
  the error messages for failing migrations have been improved.
90
- Fixed opcode validation for the out-of-band commands (``gnt-node
91
  power``).
92
- Fixed a type error when unsetting OS hypervisor parameters (issue
93
  311); now it's possible to unset all OS-specific hypervisor
94
  parameters.
95
- Fixed the ``dry-run`` mode for many operations: verification of
96
  results was over-zealous but didn't take into account the ``dry-run``
97
  operation, resulting in "wrong" failures.
98
- Fixed bash completion in ``gnt-job list`` when the job queue has
99
  hundreds of entries; especially with older ``bash`` versions, this
100
  results in significant CPU usage.
101

    
102
And lastly, a few other improvements have been made:
103

    
104
- Added option to force master-failover without voting (issue 282).
105
- Clarified error message on lock conflict (issue 287).
106
- Logging of newly submitted jobs has been improved (issue 290).
107
- Hostname checks have been made uniform between instance rename and
108
  create (issue 291).
109
- The ``--submit`` option is now supported by ``gnt-debug delay``.
110
- Shutting down the master daemon by sending SIGTERM now stops it from
111
  processing jobs waiting for locks; instead, those jobs will be started
112
  once again after the master daemon is started the next time (issue
113
  296).
114
- Support for Xen's ``xl`` program has been improved (besides the fixes
115
  above).
116
- Reduced logging noise in the Haskell confd daemon (only show one log
117
  entry for each config reload, instead of two).
118
- Several man page updates and typo fixes.
119

    
120

    
121
Version 2.6.1
122
-------------
123

    
124
*(Released Fri, 12 Oct 2012)*
125

    
126
A small bugfix release. Among the bugs fixed:
127

    
128
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
129
  made the command unusable.
130
- Commands that issue many jobs don't fail anymore just because some jobs
131
  take so long that other jobs are archived.
132
- Failures during ``gnt-instance reinstall`` are reflected by the exit
133
  status.
134
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
135
  DRBD is enabled.
136
- When ``always_failover`` is set, ``--allow-failover`` is not required
137
  in migrate commands anymore.
138
- ``bash_completion`` works even if extglob is disabled.
139
- Fixed bug with locks that made failover for RDB-based instances fail.
140
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
141
  a random node instead of one based on the allocator metric.
142
- Support for newer versions of pylint and pep8.
143
- Hail doesn't fail anymore when trying to add an instance of type
144
  ``file``, ``sharedfile`` or ``rbd``.
145
- Added new Makefile target to rebuild the whole distribution, so that
146
  all files are included.
147

    
148

    
149
Version 2.6.0
150
-------------
151

    
152
*(Released Fri, 27 Jul 2012)*
153

    
154

    
155
.. attention:: The ``LUXI`` protocol has been made more consistent
156
   regarding its handling of command arguments. This, however, leads to
157
   incompatibility issues with previous versions. Please ensure that you
158
   restart Ganeti daemons soon after the upgrade, otherwise most
159
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
160
   pausing/resuming the watcher, cancelling and archiving jobs, querying
161
   the cluster configuration) will fail.
162

    
163

    
164
New features
165
~~~~~~~~~~~~
166

    
167
Instance run status
168
+++++++++++++++++++
169

    
170
The current ``admin_up`` field, which used to denote whether an instance
171
should be running or not, has been removed. Instead, ``admin_state`` is
172
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
173

    
174
The rational behind this is that an instance being “down” can have
175
different meanings:
176

    
177
- it could be down during a reboot
178
- it could be temporarily be down for a reinstall
179
- or it could be down because it is deprecated and kept just for its
180
  disk
181

    
182
The previous Boolean state was making it difficult to do capacity
183
calculations: should Ganeti reserve memory for a down instance? Now, the
184
tri-state field makes it clear:
185

    
186
- in ``up`` and ``down`` state, all resources are reserved for the
187
  instance, and it can be at any time brought up if it is down
188
- in ``offline`` state, only disk space is reserved for it, but not
189
  memory or CPUs
190

    
191
The field can have an extra use: since the transition between ``up`` and
192
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
193
transition between ``offline`` and ``down`` is done via ``gnt-instance
194
modify``, it is possible to given different rights to users. For
195
example, owners of an instance could be allowed to start/stop it, but
196
not transition it out of the offline state.
197

    
198
Instance policies and specs
199
+++++++++++++++++++++++++++
200

    
201
In previous Ganeti versions, an instance creation request was not
202
limited on the minimum size and on the maximum size just by the cluster
203
resources. As such, any policy could be implemented only in third-party
204
clients (RAPI clients, or shell wrappers over ``gnt-*``
205
tools). Furthermore, calculating cluster capacity via ``hspace`` again
206
required external input with regards to instance sizes.
207

    
208
In order to improve these workflows and to allow for example better
209
per-node group differentiation, we introduced instance specs, which
210
allow declaring:
211

    
212
- minimum instance disk size, disk count, memory size, cpu count
213
- maximum values for the above metrics
214
- and “standard” values (used in ``hspace`` to calculate the standard
215
  sized instances)
216

    
217
The minimum/maximum values can be also customised at node-group level,
218
for example allowing more powerful hardware to support bigger instance
219
memory sizes.
220

    
221
Beside the instance specs, there are a few other settings belonging to
222
the instance policy framework. It is possible now to customise, per
223
cluster and node-group:
224

    
225
- the list of allowed disk templates
226
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
227
- the maximum ratio of instance to spindles (see below for more
228
  information) for local storage
229

    
230
All these together should allow all tools that talk to Ganeti to know
231
what are the ranges of allowed values for instances and the
232
over-subscription that is allowed.
233

    
234
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
235
instance configuration, and the physical CPU configuration from the
236
node. For the spindle ratios however, we didn't track before these
237
values, so new parameters have been added:
238

    
239
- a new node parameter ``spindle_count``, defaults to 1, customisable at
240
  node group or node level
241
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
242

    
243
Note that spindles in this context doesn't need to mean actual
244
mechanical hard-drives; it's just a relative number for both the node
245
I/O capacity and instance I/O consumption.
246

    
247
Instance migration behaviour
248
++++++++++++++++++++++++++++
249

    
250
While live-migration is in general desirable over failover, it is
251
possible that for some workloads it is actually worse, due to the
252
variable time of the “suspend” phase during live migration.
253

    
254
To allow the tools to work consistently over such instances (without
255
having to hard-code instance names), a new backend parameter
256
``always_failover`` has been added to control the migration/failover
257
behaviour. When set to True, all migration requests for an instance will
258
instead fall-back to failover.
259

    
260
Instance memory ballooning
261
++++++++++++++++++++++++++
262

    
263
Initial support for memory ballooning has been added. The memory for an
264
instance is no longer fixed (backend parameter ``memory``), but instead
265
can vary between minimum and maximum values (backend parameters
266
``minmem`` and ``maxmem``). Currently we only change an instance's
267
memory when:
268

    
269
- live migrating or failing over and instance and the target node
270
  doesn't have enough memory
271
- user requests changing the memory via ``gnt-instance modify
272
  --runtime-memory``
273

    
274
Instance CPU pinning
275
++++++++++++++++++++
276

    
277
In order to control the use of specific CPUs by instance, support for
278
controlling CPU pinning has been added for the Xen, HVM and LXC
279
hypervisors. This is controlled by a new hypervisor parameter
280
``cpu_mask``; details about possible values for this are in the
281
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
282
VCPU-to-CPU mapping) form will work well only when all nodes in your
283
cluster have the same amount of CPUs.
284

    
285
Disk parameters
286
+++++++++++++++
287

    
288
Another area in which Ganeti was not customisable were the parameters
289
used for storage configuration, e.g. how many stripes to use for LVM,
290
DRBD resync configuration, etc.
291

    
292
To improve this area, we've added disks parameters, which are
293
customisable at cluster and node group level, and which allow to
294
specify various parameters for disks (DRBD has the most parameters
295
currently), for example:
296

    
297
- DRBD resync algorithm and parameters (e.g. speed)
298
- the default VG for meta-data volumes for DRBD
299
- number of stripes for LVM (plain disk template)
300
- the RBD pool
301

    
302
These parameters can be modified via ``gnt-cluster modify -D …`` and
303
``gnt-group modify -D …``, and are used at either instance creation (in
304
case of LVM stripes, for example) or at disk “activation” time
305
(e.g. resync speed).
306

    
307
Rados block device support
308
++++++++++++++++++++++++++
309

    
310
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
311
denoted by the ``rbd`` disk template type. This is considered
312
experimental, feedback is welcome. For details on configuring it, see
313
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
314

    
315
Master IP setup
316
+++++++++++++++
317

    
318
The existing master IP functionality works well only in simple setups (a
319
single network shared by all nodes); however, if nodes belong to
320
different networks, then the ``/32`` setup and lack of routing
321
information is not enough.
322

    
323
To allow the master IP to function well in more complex cases, the
324
system was reworked as follows:
325

    
326
- a master IP netmask setting has been added
327
- the master IP activation/turn-down code was moved from the node daemon
328
  to a separate script
329
- whether to run the Ganeti-supplied master IP script or a user-supplied
330
  on is a ``gnt-cluster init`` setting
331

    
332
Details about the location of the standard and custom setup scripts are
333
in the man page :manpage:`gnt-cluster(8)`; for information about the
334
setup script protocol, look at the Ganeti-supplied script.
335

    
336
SPICE support
337
+++++++++++++
338

    
339
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
340
improved.
341

    
342
It is now possible to use TLS-protected connections, and when renewing
343
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
344
it is now possible to specify spice or spice CA certificates. Also, it
345
is possible to configure a password for SPICE sessions via the
346
hypervisor parameter ``spice_password_file``.
347

    
348
There are also new parameters to control the compression and streaming
349
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
350
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
351
for the spice parameters.
352

    
353
Lastly, it is now possible to see the SPICE connection information via
354
``gnt-instance console``.
355

    
356
OVF converter
357
+++++++++++++
358

    
359
A new tool (``tools/ovfconverter``) has been added that supports
360
conversion between Ganeti and the `Open Virtualization Format
361
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
362
from).
363

    
364
This relies on the ``qemu-img`` tool to convert the disk formats, so the
365
actual compatibility with other virtualization solutions depends on it.
366

    
367
Confd daemon changes
368
++++++++++++++++++++
369

    
370
The configuration query daemon (``ganeti-confd``) is now optional, and
371
has been rewritten in Haskell; whether to use the daemon at all, use the
372
Python (default) or the Haskell version is selectable at configure time
373
via the ``--enable-confd`` parameter, which can take one of the
374
``haskell``, ``python`` or ``no`` values. If not used, disabling the
375
daemon will result in a smaller footprint; for larger systems, we
376
welcome feedback on the Haskell version which might become the default
377
in future versions.
378

    
379
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
380
daemon running. The Python version doesn't implement the new call.
381

    
382

    
383
User interface changes
384
~~~~~~~~~~~~~~~~~~~~~~
385

    
386
We have replaced the ``--disks`` option of ``gnt-instance
387
replace-disks`` with a more flexible ``--disk`` option, which allows
388
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
389
disk size and mode can be changed upon recreation (via ``gnt-instance
390
recreate-disks``, which accepts the same ``--disk`` option).
391

    
392
As many people are used to a ``show`` command, we have added that as an
393
alias to ``info`` on all ``gnt-*`` commands.
394

    
395
The ``gnt-instance grow-disk`` command has a new mode in which it can
396
accept the target size of the disk, instead of the delta; this can be
397
more safe since two runs in absolute mode will be idempotent, and
398
sometimes it's also easier to specify the desired size directly.
399

    
400
Also the handling of instances with regard to offline secondaries has
401
been improved. Instance operations should not fail because one of it's
402
secondary nodes is offline, even though it's safe to proceed.
403

    
404
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
405
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
406
minors to instance name.
407

    
408
API changes
409
~~~~~~~~~~~
410

    
411
RAPI coverage has improved, with (for example) new resources for
412
recreate-disks, node power-cycle, etc.
413

    
414
Compatibility
415
~~~~~~~~~~~~~
416

    
417
There is partial support for ``xl`` in the Xen hypervisor; feedback is
418
welcome.
419

    
420
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
421
whether to still support Python 2.4 or move to Python 2.6 as minimum
422
required version.
423

    
424
Support for Fedora has been slightly improved; the provided example
425
init.d script should work better on it and the INSTALL file should
426
document the needed dependencies.
427

    
428
Internal changes
429
~~~~~~~~~~~~~~~~
430

    
431
The deprecated ``QueryLocks`` LUXI request has been removed. Use
432
``Query(what=QR_LOCK, ...)`` instead.
433

    
434
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
435
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
436
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
437
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
438
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
439

    
440
RAPI client: ``CertificateError`` now derives from
441
``GanetiApiError``. This should make it more easy to handle Ganeti
442
errors.
443

    
444
Deprecation warnings due to PyCrypto/paramiko import in
445
``tools/setup-ssh`` have been silenced, as usually they are safe; please
446
make sure to run an up-to-date paramiko version, if you use this tool.
447

    
448
The QA scripts now depend on Python 2.5 or above (the main code base
449
still works with Python 2.4).
450

    
451
The configuration file (``config.data``) is now written without
452
indentation for performance reasons; if you want to edit it, it can be
453
re-formatted via ``tools/fmtjson``.
454

    
455
A number of bugs has been fixed in the cluster merge tool.
456

    
457
``x509`` certification verification (used in import-export) has been
458
changed to allow the same clock skew as permitted by the cluster
459
verification. This will remove some rare but hard to diagnose errors in
460
import-export.
461

    
462

    
463
Version 2.6.0 rc4
464
-----------------
465

    
466
*(Released Thu, 19 Jul 2012)*
467

    
468
Very few changes from rc4 to the final release, only bugfixes:
469

    
470
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
471
  instance, fix CDROM booting for KVM instances)
472
- fixed node group modification of node parameters
473
- fixed issue in LUClusterVerifyGroup with multi-group clusters
474
- fixed generation of bash completion to ensure a stable ordering
475
- fixed a few typos
476

    
477

    
478
Version 2.6.0 rc3
479
-----------------
480

    
481
*(Released Fri, 13 Jul 2012)*
482

    
483
Third release candidate for 2.6. The following changes were done from
484
rc3 to rc4:
485

    
486
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
487
- Fixed an inconsistency in the LUXI protocol with the provided
488
  arguments (NOT backwards compatible)
489
- Fixed a bug with node groups ipolicy where ``min`` was greater than
490
  the cluster ``std`` value
491
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
492
  easier instance debugging on nodes (requires ``hconfd`` to work)
493

    
494

    
495
Version 2.6.0 rc2
496
-----------------
497

    
498
*(Released Tue, 03 Jul 2012)*
499

    
500
Second release candidate for 2.6. The following changes were done from
501
rc2 to rc3:
502

    
503
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
504
  master candidates
505
- Fixed a RAPI regression on missing beparams/memory
506
- Fixed redistribution of files on offline nodes
507
- Added possibility to run activate-disks even though secondaries are
508
  offline. With this change it relaxes also the strictness on some other
509
  commands which use activate disks internally:
510
  * ``gnt-instance start|reboot|rename|backup|export``
511
- Made it possible to remove safely an instance if its secondaries are
512
  offline
513
- Made it possible to reinstall even though secondaries are offline
514

    
515

    
516
Version 2.6.0 rc1
517
-----------------
518

    
519
*(Released Mon, 25 Jun 2012)*
520

    
521
First release candidate for 2.6. The following changes were done from
522
rc1 to rc2:
523

    
524
- Fixed bugs with disk parameters and ``rbd`` templates as well as
525
  ``instance_os_add``
526
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
527
  behaviour. It supports now the modify operation
528
- ``hcheck`` implemented to analyze cluster health and possibility of
529
  improving health by rebalance
530
- ``hbal`` has been improved in dealing with split instances
531

    
532

    
533
Version 2.6.0 beta2
534
-------------------
535

    
536
*(Released Mon, 11 Jun 2012)*
537

    
538
Second beta release of 2.6. The following changes were done from beta2
539
to rc1:
540

    
541
- Fixed ``daemon-util`` with non-root user models
542
- Fixed creation of plain instances with ``--no-wait-for-sync``
543
- Fix wrong iv_names when running ``cfgupgrade``
544
- Export more information in RAPI group queries
545
- Fixed bug when changing instance network interfaces
546
- Extended burnin to do NIC changes
547
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
548
- Changed default for DRBD barriers
549
- Fixed DRBD error reporting for syncer rate
550
- Verify the options on disk parameters
551

    
552
And of course various fixes to documentation and improved unittests and
553
QA.
554

    
555

    
556
Version 2.6.0 beta1
557
-------------------
558

    
559
*(Released Wed, 23 May 2012)*
560

    
561
First beta release of 2.6. The following changes were done from beta1 to
562
beta2:
563

    
564
- integrated patch for distributions without ``start-stop-daemon``
565
- adapted example init.d script to work on Fedora
566
- fixed log handling in Haskell daemons
567
- adapted checks in the watcher for pycurl linked against libnss
568
- add partial support for ``xl`` instead of ``xm`` for Xen
569
- fixed a type issue in cluster verification
570
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
571
  clusters)
572

    
573
Plus integrated fixes from the 2.5 branch:
574

    
575
- fixed ``kvm-ifup`` to use ``/bin/bash``
576
- fixed parallel build failures
577
- KVM live migration when using a custom keymap
578

    
579

    
580
Version 2.5.2
581
-------------
582

    
583
*(Released Tue, 24 Jul 2012)*
584

    
585
A small bugfix release, with no new features:
586

    
587
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
588
  different default shell (e.g. Debian, Ubuntu)
589
- fixed KVM startup and live migration with a custom keymap (fixes Issue
590
  243 and Debian bug #650664)
591
- fixed compatibility with KVM versions that don't support multiple boot
592
  devices (fixes Issue 230 and Debian bug #624256)
593

    
594
Additionally, a few fixes were done to the build system (fixed parallel
595
build failures) and to the unittests (fixed race condition in test for
596
FileID functions, and the default enable/disable mode for QA test is now
597
customisable).
598

    
599

    
600
Version 2.5.1
601
-------------
602

    
603
*(Released Fri, 11 May 2012)*
604

    
605
A small bugfix release.
606

    
607
The main issues solved are on the topic of compatibility with newer LVM
608
releases:
609

    
610
- fixed parsing of ``lv_attr`` field
611
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
612
  the ``--force`` flag is needed
613

    
614
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
615
to accept kernel 3.x too (was hardcoded to 2.6.*).
616

    
617
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
618
of hook results and that also made display of other errors suboptimal
619
was fixed; the code behaves now like 2.4 and earlier.
620

    
621
Another change in 2.5, the cleanup of the OS scripts environment, is too
622
aggressive: it removed even the ``PATH`` variable, which requires the OS
623
scripts to *always* need to export it. Since this is a bit too strict,
624
we now export a minimal PATH, the same that we export for hooks.
625

    
626
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
627
integrated into this release.
628

    
629
Finally, a few other miscellaneous changes were done (no new features,
630
just small improvements):
631

    
632
- Fix ``gnt-group --help`` display
633
- Fix hardcoded Xen kernel path
634
- Fix grow-disk handling of invalid units
635
- Update synopsis for ``gnt-cluster repair-disk-sizes``
636
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
637

    
638

    
639
Version 2.5.0
640
-------------
641

    
642
*(Released Thu, 12 Apr 2012)*
643

    
644
Incompatible/important changes and bugfixes
645
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
646

    
647
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
648
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
649
  to match the underlying LUXI interface.
650
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
651
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
652
  not maintain backwards-compatibility as the underlying operation
653
  changed in an incompatible way. The RAPI client can talk to old
654
  servers, but it needs to be told so as the return value changed.
655
- When creating file-based instances via RAPI, the ``file_driver``
656
  parameter no longer defaults to ``loop`` and must be specified.
657
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
658
  ``link`` instead.
659
- Support for the undocumented and deprecated RAPI instance creation
660
  request format version 0 has been dropped. Use version 1, supported
661
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
662
- Pyparsing 1.4.6 or above is required, see :doc:`installation
663
  documentation <install>`.
664
- The "cluster-verify" hooks are now executed per group by the
665
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
666
  if you just run ``gnt-cluster verify``, which generates one opcode per
667
  group.
668
- The environment as passed to the OS scripts is cleared, and thus no
669
  environment variables defined in the node daemon's environment will be
670
  inherited by the scripts.
671
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
672
  deprecated.
673
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
674
  support operations involving multiple node groups.
675
- Offline nodes are ignored when failing over an instance.
676
- Support for KVM version 1.0, which changed the version reporting format
677
  from 3 to 2 digits.
678
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
679
  removal.
680
- ``Makefile`` is now compatible with Automake 1.11.2
681
- Includes all bugfixes made in the 2.4 series
682

    
683
New features
684
~~~~~~~~~~~~
685

    
686
- The ganeti-htools project has been merged into the ganeti-core source
687
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
688
- Implemented support for :doc:`shared storage <design-shared-storage>`.
689
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
690
  GPT-style partition tables (requires `parted
691
  <http://www.gnu.org/s/parted/>`_).
692
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
693
- Allowed adding tags on instance creation.
694
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
695
- Allow instances to be started in a paused state, enabling the user to
696
  see the complete console output on boot using the console.
697
- Added new hypervisor flag to control default reboot behaviour
698
  (``reboot_behavior``).
699
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
700
- Improved out-of-band management support:
701

    
702
  - Added ``gnt-node health`` command reporting the health status of
703
    nodes.
704
  - Added ``gnt-node power`` command to manage power status of nodes.
705
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
706

    
707
- Instance migration can fall back to failover if instance is not
708
  running.
709
- Filters can be used when listing nodes, instances, groups and locks;
710
  see :manpage:`ganeti(7)` manpage.
711
- Added post-execution status as variables to :doc:`hooks <hooks>`
712
  environment.
713
- Instance tags are exported/imported together with the instance.
714
- When given an explicit job ID, ``gnt-job info`` will work for archived
715
  jobs.
716
- Jobs can define dependencies on other jobs (not yet supported via
717
  RAPI or command line, but used by internal commands and usable via
718
  LUXI).
719

    
720
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
721
    dependencies.
722

    
723
- Instance failover is now available as a RAPI resource
724
  (``/2/instances/[instance_name]/failover``).
725
- ``gnt-instance info`` defaults to static information if primary node
726
  is offline.
727
- Opcodes have a new ``comment`` attribute.
728
- Added basic SPICE support to KVM hypervisor.
729
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
730

    
731
Node group improvements
732
~~~~~~~~~~~~~~~~~~~~~~~
733

    
734
- ``gnt-cluster verify`` has been modified to check groups separately,
735
  thereby improving performance.
736
- Node group support has been added to ``gnt-cluster verify-disks``,
737
  which now operates per node group.
738
- Watcher has been changed to work better with node groups.
739

    
740
  - One process and state file per node group.
741
  - Slow watcher in one group doesn't block other group's watcher.
742

    
743
- Added new command, ``gnt-group evacuate``, to move all instances in a
744
  node group to other groups.
745
- Added ``gnt-instance change-group`` to move an instance to another
746
  node group.
747
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
748
  per-group operations.
749
- Node groups can be tagged.
750
- Some operations switch from an exclusive to a shared lock as soon as
751
  possible.
752
- Instance's primary and secondary nodes' groups are now available as
753
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
754
  and ``snodes.group.uuid``).
755

    
756
Misc
757
~~~~
758

    
759
- Numerous updates to documentation and manpages.
760

    
761
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
762
    descriptions.
763
  - Some opcode/job results are now also documented, see :doc:`RAPI
764
    <rapi>`.
765

    
766
- A lockset's internal lock is now also visible in lock monitor.
767
- Log messages from job queue workers now contain information about the
768
  opcode they're processing.
769
- ``gnt-instance console`` no longer requires the instance lock.
770
- A short delay when waiting for job changes reduces the number of LUXI
771
  requests significantly.
772
- DRBD metadata volumes are overwritten with zeros during disk creation.
773
- Out-of-band commands no longer acquire the cluster lock in exclusive
774
  mode.
775
- ``devel/upload`` now uses correct permissions for directories.
776

    
777

    
778
Version 2.5.0 rc6
779
-----------------
780

    
781
*(Released Fri, 23 Mar 2012)*
782

    
783
This was the sixth release candidate of the 2.5 series.
784

    
785

    
786
Version 2.5.0 rc5
787
-----------------
788

    
789
*(Released Mon, 9 Jan 2012)*
790

    
791
This was the fifth release candidate of the 2.5 series.
792

    
793

    
794
Version 2.5.0 rc4
795
-----------------
796

    
797
*(Released Thu, 27 Oct 2011)*
798

    
799
This was the fourth release candidate of the 2.5 series.
800

    
801

    
802
Version 2.5.0 rc3
803
-----------------
804

    
805
*(Released Wed, 26 Oct 2011)*
806

    
807
This was the third release candidate of the 2.5 series.
808

    
809

    
810
Version 2.5.0 rc2
811
-----------------
812

    
813
*(Released Tue, 18 Oct 2011)*
814

    
815
This was the second release candidate of the 2.5 series.
816

    
817

    
818
Version 2.5.0 rc1
819
-----------------
820

    
821
*(Released Tue, 4 Oct 2011)*
822

    
823
This was the first release candidate of the 2.5 series.
824

    
825

    
826
Version 2.5.0 beta3
827
-------------------
828

    
829
*(Released Wed, 31 Aug 2011)*
830

    
831
This was the third beta release of the 2.5 series.
832

    
833

    
834
Version 2.5.0 beta2
835
-------------------
836

    
837
*(Released Mon, 22 Aug 2011)*
838

    
839
This was the second beta release of the 2.5 series.
840

    
841

    
842
Version 2.5.0 beta1
843
-------------------
844

    
845
*(Released Fri, 12 Aug 2011)*
846

    
847
This was the first beta release of the 2.5 series.
848

    
849

    
850
Version 2.4.5
851
-------------
852

    
853
*(Released Thu, 27 Oct 2011)*
854

    
855
- Fixed bug when parsing command line parameter values ending in
856
  backslash
857
- Fixed assertion error after unclean master shutdown
858
- Disable HTTP client pool for RPC, significantly reducing memory usage
859
  of master daemon
860
- Fixed queue archive creation with wrong permissions
861

    
862

    
863
Version 2.4.4
864
-------------
865

    
866
*(Released Tue, 23 Aug 2011)*
867

    
868
Small bug-fixes:
869

    
870
- Fixed documentation for importing with ``--src-dir`` option
871
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
872
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
873

    
874

    
875
Version 2.4.3
876
-------------
877

    
878
*(Released Fri, 5 Aug 2011)*
879

    
880
Many bug-fixes and a few small features:
881

    
882
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
883
  issues when you tried to add an instance with two MAC addresses in one
884
  request
885
- KVM: fixed per-instance stored UID value
886
- KVM: configure bridged NICs at migration start
887
- KVM: Fix a bug where instance will not start with never KVM versions
888
  (>= 0.14)
889
- Added OS search path to ``gnt-cluster info``
890
- Fixed an issue with ``file_storage_dir`` where you were forced to
891
  provide an absolute path, but the documentation states it is a
892
  relative path, the documentation was right
893
- Added a new parameter to instance stop/start called ``--no-remember``
894
  that will make the state change to not be remembered
895
- Implemented ``no_remember`` at RAPI level
896
- Improved the documentation
897
- Node evacuation: don't call IAllocator if node is already empty
898
- Fixed bug in DRBD8 replace disks on current nodes
899
- Fixed bug in recreate-disks for DRBD instances
900
- Moved assertion checking locks in ``gnt-instance replace-disks``
901
  causing it to abort with not owning the right locks for some situation
902
- Job queue: Fixed potential race condition when cancelling queued jobs
903
- Fixed off-by-one bug in job serial generation
904
- ``gnt-node volumes``: Fix instance names
905
- Fixed aliases in bash completion
906
- Fixed a bug in reopening log files after being sent a SIGHUP
907
- Added a flag to burnin to allow specifying VCPU count
908
- Bugfixes to non-root Ganeti configuration
909

    
910

    
911
Version 2.4.2
912
-------------
913

    
914
*(Released Thu, 12 May 2011)*
915

    
916
Many bug-fixes and a few new small features:
917

    
918
- Fixed a bug related to log opening failures
919
- Fixed a bug in instance listing with orphan instances
920
- Fixed a bug which prevented resetting the cluster-level node parameter
921
  ``oob_program`` to the default
922
- Many fixes related to the ``cluster-merge`` tool
923
- Fixed a race condition in the lock monitor, which caused failures
924
  during (at least) creation of many instances in parallel
925
- Improved output for gnt-job info
926
- Removed the quiet flag on some ssh calls which prevented debugging
927
  failures
928
- Improved the N+1 failure messages in cluster verify by actually
929
  showing the memory values (needed and available)
930
- Increased lock attempt timeouts so that when executing long operations
931
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
932
  too early and thus prevent the use of the 'fair' mechanism
933
- Changed instance query data (``gnt-instance info``) to not acquire
934
  locks unless needed, thus allowing its use on locked instance if only
935
  static information is asked for
936
- Improved behaviour with filesystems that do not support rename on an
937
  opened file
938
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
939
  kept locks on all nodes during the wipe, which is unneeded
940
- Fixed ``gnt-watcher`` handling of errors during hooks execution
941
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
942
  10GiB) which caused the wipe to fail right at the end in some cases
943
- Fixed master IP activation when doing master failover with no-voting
944
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
945
  the master node itself
946
- Fixed potential data-loss in under disk full conditions, where Ganeti
947
  wouldn't check correctly the return code and would consider
948
  partially-written files 'correct'
949
- Fixed bug related to multiple VGs and DRBD disk replacing
950
- Added new disk parameter ``metavg`` that allows placement of the meta
951
  device for DRBD in a different volume group
952
- Fixed error handling in the node daemon when the system libc doesn't
953
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
954
- Fixed lock release during replace-disks, which kept cluster-wide locks
955
  when doing disk replaces with an iallocator script
956
- Added check for missing bridges in cluster verify
957
- Handle EPIPE errors while writing to the terminal better, so that
958
  piping the output to e.g. ``less`` doesn't cause a backtrace
959
- Fixed rare case where a ^C during Luxi calls could have been
960
  interpreted as server errors, instead of simply terminating
961
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
962
  assign-nodes``)
963
- Added a few more parameters to the KVM hypervisor, allowing a second
964
  CDROM, custom disk type for CDROMs and a floppy image
965
- Removed redundant message in instance rename when the name is given
966
  already as a FQDN
967
- Added option to ``gnt-instance recreate-disks`` to allow creating the
968
  disks on new nodes, allowing recreation when the original instance
969
  nodes are completely gone
970
- Added option when converting disk templates to DRBD to skip waiting
971
  for the resync, in order to make the instance available sooner
972
- Added two new variables to the OS scripts environment (containing the
973
  instance's nodes)
974
- Made the root_path and optional parameter for the xen-pvm hypervisor,
975
  to allow use of ``pvgrub`` as bootloader
976
- Changed the instance memory modifications to only check out-of-memory
977
  conditions on memory increases, and turned the secondary node warnings
978
  into errors (they can still be overridden via ``--force``)
979
- Fixed the handling of a corner case when the Python installation gets
980
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
981
  to execute a command that doesn't exist
982
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
983
  node of the instance returned failures during instance shutdown; this
984
  adds the option ``--ignore-consistency`` to gnt-instance move
985

    
986
And as usual, various improvements to the error messages, documentation
987
and man pages.
988

    
989

    
990
Version 2.4.1
991
-------------
992

    
993
*(Released Wed, 09 Mar 2011)*
994

    
995
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
996
the RAPI users file if run twice (even with ``--dry-run``).
997

    
998
The release fixes that bug (nothing else changed).
999

    
1000

    
1001
Version 2.4.0
1002
-------------
1003

    
1004
*(Released Mon, 07 Mar 2011)*
1005

    
1006
Final 2.4.0 release. Just a few small fixes:
1007

    
1008
- Fixed RAPI node evacuate
1009
- Fixed the kvm-ifup script
1010
- Fixed internal error handling for special job cases
1011
- Updated man page to specify the escaping feature for options
1012

    
1013

    
1014
Version 2.4.0 rc3
1015
-----------------
1016

    
1017
*(Released Mon, 28 Feb 2011)*
1018

    
1019
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1020
that this feature wiped the disks of the wrong instance, leading to loss
1021
of data.
1022

    
1023
Other changes:
1024

    
1025
- Fixed title of query field containing instance name
1026
- Expanded the glossary in the documentation
1027
- Fixed one unittest (internal issue)
1028

    
1029

    
1030
Version 2.4.0 rc2
1031
-----------------
1032

    
1033
*(Released Mon, 21 Feb 2011)*
1034

    
1035
A number of bug fixes plus just a couple functionality changes.
1036

    
1037
On the user-visible side, the ``gnt-* list`` command output has changed
1038
with respect to "special" field states. The current rc1 style of display
1039
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1040
the default output mode special fields states are displayed as follows:
1041

    
1042
- Offline resource: ``*``
1043
- Unavailable/not applicable: ``-``
1044
- Data missing (RPC failure): ``?``
1045
- Unknown field: ``??``
1046

    
1047
Another user-visible change is the addition of ``--force-join`` to
1048
``gnt-node add``.
1049

    
1050
As for bug fixes:
1051

    
1052
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
1053
- Fixed regression in RAPI/instance reinstall where all parameters were
1054
  required (instead of optional)
1055
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1056
- Fixed iallocator usage (offline nodes were not considered offline)
1057
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1058
- Fixed hypervisor and OS parameter validation with respect to
1059
  non-vm_capable nodes
1060
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1061
  cosmetic)
1062
- Fixed ``tools/listrunner`` with respect to agent-based usage
1063

    
1064

    
1065
Version 2.4.0 rc1
1066
-----------------
1067

    
1068
*(Released Fri,  4 Feb 2011)*
1069

    
1070
Many changes and fixes since the beta1 release. While there were some
1071
internal changes, the code has been mostly stabilised for the RC
1072
release.
1073

    
1074
Note: the dumb allocator was removed in this release, as it was not kept
1075
up-to-date with the IAllocator protocol changes. It is recommended to
1076
use the ``hail`` command from the ganeti-htools package.
1077

    
1078
Note: the 2.4 and up versions of Ganeti are not compatible with the
1079
0.2.x branch of ganeti-htools. You need to upgrade to
1080
ganeti-htools-0.3.0 (or later).
1081

    
1082
Regressions fixed from 2.3
1083
~~~~~~~~~~~~~~~~~~~~~~~~~~
1084

    
1085
- Fixed the ``gnt-cluster verify-disks`` command
1086
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1087
  serially on nodes)
1088
- Fixed disk adoption breakage
1089
- Fixed wrong headers in instance listing for field aliases
1090

    
1091
Other bugs fixed
1092
~~~~~~~~~~~~~~~~
1093

    
1094
- Fixed corner case in KVM handling of NICs
1095
- Fixed many cases of wrong handling of non-vm_capable nodes
1096
- Fixed a bug where a missing instance symlink was not possible to
1097
  recreate with any ``gnt-*`` command (now ``gnt-instance
1098
  activate-disks`` does it)
1099
- Fixed the volume group name as reported by ``gnt-cluster
1100
  verify-disks``
1101
- Increased timeouts for the import-export code, hopefully leading to
1102
  fewer aborts due network or instance timeouts
1103
- Fixed bug in ``gnt-node list-storage``
1104
- Fixed bug where not all daemons were started on cluster
1105
  initialisation, but only at the first watcher run
1106
- Fixed many bugs in the OOB implementation
1107
- Fixed watcher behaviour in presence of instances with offline
1108
  secondaries
1109
- Fixed instance list output for instances running on the wrong node
1110
- a few fixes to the cluster-merge tool, but it still cannot merge
1111
  multi-node groups (currently it is not recommended to use this tool)
1112

    
1113

    
1114
Improvements
1115
~~~~~~~~~~~~
1116

    
1117
- Improved network configuration for the KVM hypervisor
1118
- Added e1000 as a supported NIC for Xen-HVM
1119
- Improved the lvmstrap tool to also be able to use partitions, as
1120
  opposed to full disks
1121
- Improved speed of disk wiping (the cluster parameter
1122
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1123
  of instance creations
1124
- Added documentation for the OS parameters
1125
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1126
  hypervisor is not responding
1127
- Added display of blacklisted and hidden OS information in
1128
  ``gnt-cluster info``
1129
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1130
  NIC and node parameters, which might create problems with currently
1131
  invalid (but undetected) configuration files, but prevents validation
1132
  failures when unrelated parameters are modified
1133
- Changed cluster initialisation to wait for the master daemon to become
1134
  available
1135
- Expanded the RAPI interface:
1136

    
1137
  - Added config redistribution resource
1138
  - Added activation/deactivation of instance disks
1139
  - Added export of console information
1140

    
1141
- Implemented log file reopening on SIGHUP, which allows using
1142
  logrotate(8) for the Ganeti log files
1143
- Added a basic OOB helper script as an example
1144

    
1145

    
1146
Version 2.4.0 beta1
1147
-------------------
1148

    
1149
*(Released Fri, 14 Jan 2011)*
1150

    
1151
User-visible
1152
~~~~~~~~~~~~
1153

    
1154
- Fixed timezone issues when formatting timestamps
1155
- Added support for node groups, available via ``gnt-group`` and other
1156
  commands
1157
- Added out-of-band framework and management, see :doc:`design
1158
  document <design-oob>`
1159
- Removed support for roman numbers from ``gnt-node list`` and
1160
  ``gnt-instance list``.
1161
- Allowed modification of master network interface via ``gnt-cluster
1162
  modify --master-netdev``
1163
- Accept offline secondaries while shutting down instance disks
1164
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1165
- Added support for multiple LVM volume groups
1166
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1167
  requested
1168
- Added commands to list available fields:
1169

    
1170
  - ``gnt-node list-fields``
1171
  - ``gnt-group list-fields``
1172
  - ``gnt-instance list-fields``
1173

    
1174
- Updated documentation and man pages
1175

    
1176
Integration
1177
~~~~~~~~~~~
1178

    
1179
- Moved ``rapi_users`` file into separate directory, now named
1180
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1181
  symlink
1182
- Added new tool for running commands on many machines,
1183
  ``tools/ganeti-listrunner``
1184
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1185
  improving the ``gnt-instance console`` output
1186
- Allowed customisation of disk index separator at ``configure`` time
1187
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1188
- Added support for non-partitioned md disks in ``lvmstrap``
1189
- Added script to gracefully power off KVM instances
1190
- Split ``utils`` module into smaller parts
1191
- Changed query operations to return more detailed information, e.g.
1192
  whether an information is unavailable due to an offline node. To use
1193
  this new functionality, the LUXI call ``Query`` must be used. Field
1194
  information is now stored by the master daemon and can be retrieved
1195
  using ``QueryFields``. Instances, nodes and groups can also be queried
1196
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1197
  exposed via RAPI). The following commands make use of this
1198
  infrastructure change:
1199

    
1200
  - ``gnt-group list``
1201
  - ``gnt-group list-fields``
1202
  - ``gnt-node list``
1203
  - ``gnt-node list-fields``
1204
  - ``gnt-instance list``
1205
  - ``gnt-instance list-fields``
1206
  - ``gnt-debug locks``
1207

    
1208
Remote API
1209
~~~~~~~~~~
1210

    
1211
- New RAPI resources (see :doc:`rapi`):
1212

    
1213
  - ``/2/modify``
1214
  - ``/2/groups``
1215
  - ``/2/groups/[group_name]``
1216
  - ``/2/groups/[group_name]/assign-nodes``
1217
  - ``/2/groups/[group_name]/modify``
1218
  - ``/2/groups/[group_name]/rename``
1219
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1220

    
1221
- RAPI changes:
1222

    
1223
  - Implemented ``no_install`` for instance creation
1224
  - Implemented OS parameters for instance reinstallation, allowing
1225
    use of special settings on reinstallation (e.g. for preserving data)
1226

    
1227
Misc
1228
~~~~
1229

    
1230
- Added IPv6 support in import/export
1231
- Pause DRBD synchronization while wiping disks on instance creation
1232
- Updated unittests and QA scripts
1233
- Improved network parameters passed to KVM
1234
- Converted man pages from docbook to reStructuredText
1235

    
1236

    
1237
Version 2.3.1
1238
-------------
1239

    
1240
*(Released Mon, 20 Dec 2010)*
1241

    
1242
Released version 2.3.1~rc1 without any changes.
1243

    
1244

    
1245
Version 2.3.1 rc1
1246
-----------------
1247

    
1248
*(Released Wed, 1 Dec 2010)*
1249

    
1250
- impexpd: Disable OpenSSL compression in socat if possible (backport
1251
  from master, commit e90739d625b, see :doc:`installation guide
1252
  <install-quick>` for details)
1253
- Changed unittest coverage report to exclude test scripts
1254
- Added script to check version format
1255

    
1256

    
1257
Version 2.3.0
1258
-------------
1259

    
1260
*(Released Wed, 1 Dec 2010)*
1261

    
1262
Released version 2.3.0~rc1 without any changes.
1263

    
1264

    
1265
Version 2.3.0 rc1
1266
-----------------
1267

    
1268
*(Released Fri, 19 Nov 2010)*
1269

    
1270
A number of bugfixes and documentation updates:
1271

    
1272
- Update ganeti-os-interface documentation
1273
- Fixed a bug related to duplicate MACs or similar items which should be
1274
  unique
1275
- Fix breakage in OS state modify
1276
- Reinstall instance: disallow offline secondaries (fixes bug related to
1277
  OS changing but reinstall failing)
1278
- plus all the other fixes between 2.2.1 and 2.2.2
1279

    
1280

    
1281
Version 2.3.0 rc0
1282
-----------------
1283

    
1284
*(Released Tue, 2 Nov 2010)*
1285

    
1286
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1287
- Fixed master failover race with watcher
1288
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1289
  configuration
1290
- Accept previously stopped instance for export with instance removal
1291
- Simplify and extend the environment variables for instance OS scripts
1292
- Added new node flags, ``master_capable`` and ``vm_capable``
1293
- Added optional instance disk wiping prior during allocation. This is a
1294
  cluster-wide option and can be set/modified using
1295
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1296
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1297
  :doc:`install-quick`
1298
- Added a new watcher option (``--ignore-pause``)
1299
- Added option to ignore offline node on instance start/stop
1300
  (``--ignore-offline``)
1301
- Allow overriding OS parameters with ``gnt-instance reinstall``
1302
- Added ability to change node's secondary IP address using ``gnt-node
1303
  modify``
1304
- Implemented privilege separation for all daemons except
1305
  ``ganeti-noded``, see ``configure`` options
1306
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1307
  verify``
1308
- Implemented job priorities (see ``ganeti(7)`` manpage)
1309
- Ignore failures while shutting down instances during failover from
1310
  offline node
1311
- Exit daemon's bootstrap process only once daemon is ready
1312
- Export more information via ``LUInstanceQuery``/remote API
1313
- Improved documentation, QA and unittests
1314
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1315
  restart if the file was created or changed
1316
- Added LUXI protocol version sent with each request and response,
1317
  allowing detection of server/client mismatches
1318
- Moved the Python scripts among gnt-* and ganeti-* into modules
1319
- Moved all code related to setting up SSH to an external script,
1320
  ``setup-ssh``
1321
- Infrastructure changes for node group support in future versions
1322

    
1323

    
1324
Version 2.2.2
1325
-------------
1326

    
1327
*(Released Fri, 19 Nov 2010)*
1328

    
1329
A few small bugs fixed, and some improvements to the build system:
1330

    
1331
- Fix documentation regarding conversion to drbd
1332
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1333
  -B``)
1334
- Fix error handling in node modify with multiple changes
1335
- Allow remote imports without checked names
1336

    
1337

    
1338
Version 2.2.1
1339
-------------
1340

    
1341
*(Released Tue, 19 Oct 2010)*
1342

    
1343
- Disable SSL session ID cache in RPC client
1344

    
1345

    
1346
Version 2.2.1 rc1
1347
-----------------
1348

    
1349
*(Released Thu, 14 Oct 2010)*
1350

    
1351
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1352
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1353
  with GnuTLS
1354
- Fix problems with interaction between Curl and Python's HTTP server,
1355
  resulting in increased speed in many RPC calls
1356
- Improve our release script to prevent breakage with older aclocal and
1357
  Python 2.6
1358

    
1359

    
1360
Version 2.2.1 rc0
1361
-----------------
1362

    
1363
*(Released Thu, 7 Oct 2010)*
1364

    
1365
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1366
  value retrieved from master
1367
- Added support for blacklisted or hidden OS definitions
1368
- Added simple lock monitor (accessible via (``gnt-debug locks``)
1369
- Added support for -mem-path in KVM hypervisor abstraction layer
1370
- Allow overriding instance parameters in tool for inter-cluster
1371
  instance moves (``tools/move-instance``)
1372
- Improved opcode summaries (e.g. in ``gnt-job list``)
1373
- Improve consistency of OS listing by sorting it
1374
- Documentation updates
1375

    
1376

    
1377
Version 2.2.0.1
1378
---------------
1379

    
1380
*(Released Fri, 8 Oct 2010)*
1381

    
1382
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
1383

    
1384

    
1385
Version 2.2.0
1386
-------------
1387

    
1388
*(Released Mon, 4 Oct 2010)*
1389

    
1390
- Fixed regression in ``gnt-instance rename``
1391

    
1392

    
1393
Version 2.2.0 rc2
1394
-----------------
1395

    
1396
*(Released Wed, 22 Sep 2010)*
1397

    
1398
- Fixed OS_VARIANT variable for OS scripts
1399
- Fixed cluster tag operations via RAPI
1400
- Made ``setup-ssh`` exit with non-zero code if an error occurred
1401
- Disabled RAPI CA checks in watcher
1402

    
1403

    
1404
Version 2.2.0 rc1
1405
-----------------
1406

    
1407
*(Released Mon, 23 Aug 2010)*
1408

    
1409
- Support DRBD versions of the format "a.b.c.d"
1410
- Updated manpages
1411
- Re-introduce support for usage from multiple threads in RAPI client
1412
- Instance renames and modify via RAPI
1413
- Work around race condition between processing and archival in job
1414
  queue
1415
- Mark opcodes following failed one as failed, too
1416
- Job field ``lock_status`` was removed due to difficulties making it
1417
  work with the changed job queue in Ganeti 2.2; a better way to monitor
1418
  locks is expected for a later 2.2.x release
1419
- Fixed dry-run behaviour with many commands
1420
- Support ``ssh-agent`` again when adding nodes
1421
- Many additional bugfixes
1422

    
1423

    
1424
Version 2.2.0 rc0
1425
-----------------
1426

    
1427
*(Released Fri, 30 Jul 2010)*
1428

    
1429
Important change: the internal RPC mechanism between Ganeti nodes has
1430
changed from using a home-grown http library (based on the Python base
1431
libraries) to use the PycURL library. This requires that PycURL is
1432
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
1433
against GnuTLS by default. cURL's support for GnuTLS had known issues
1434
before cURL 7.21.0 and we recommend using the latest cURL release or
1435
linking against OpenSSL. Most other distributions already link PycURL
1436
and cURL against OpenSSL. The command::
1437

    
1438
  python -c 'import pycurl; print pycurl.version'
1439

    
1440
can be used to determine the libraries PycURL and cURL are linked
1441
against.
1442

    
1443
Other significant changes:
1444

    
1445
- Rewrote much of the internals of the job queue, in order to achieve
1446
  better parallelism; this decouples job query operations from the job
1447
  processing, and it should allow much nicer behaviour of the master
1448
  daemon under load, and it also has uncovered some long-standing bugs
1449
  related to the job serialisation (now fixed)
1450
- Added a default iallocator setting to the cluster parameters,
1451
  eliminating the need to always pass nodes or an iallocator for
1452
  operations that require selection of new node(s)
1453
- Added experimental support for the LXC virtualization method
1454
- Added support for OS parameters, which allows the installation of
1455
  instances to pass parameter to OS scripts in order to customise the
1456
  instance
1457
- Added a hypervisor parameter controlling the migration type (live or
1458
  non-live), since hypervisors have various levels of reliability; this
1459
  has renamed the 'live' parameter to 'mode'
1460
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
1461
  logical volumes, meaning that cluster verify will ignore them and not
1462
  flag their presence as errors
1463
- The watcher will now reset the error count for failed instances after
1464
  8 hours, thus allowing self-healing if the problem that caused the
1465
  instances to be down/fail to start has cleared in the meantime
1466
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
1467
  check for, and warn, if the drbd module parameter ``usermode_helper``
1468
  is not consistent with the cluster-wide setting; this is needed to
1469
  make diagnose easier of failed drbd creations
1470
- Started adding base IPv6 support, but this is not yet
1471
  enabled/available for use
1472
- Rename operations (cluster, instance) will now return the new name,
1473
  which is especially useful if a short name was passed in
1474
- Added support for instance migration in RAPI
1475
- Added a tool to pre-configure nodes for the SSH setup, before joining
1476
  them to the cluster; this will allow in the future a simplified model
1477
  for node joining (but not yet fully enabled in 2.2); this needs the
1478
  paramiko python library
1479
- Fixed handling of name-resolving errors
1480
- Fixed consistency of job results on the error path
1481
- Fixed master-failover race condition when executed multiple times in
1482
  sequence
1483
- Fixed many bugs related to the job queue (mostly introduced during the
1484
  2.2 development cycle, so not all are impacting 2.1)
1485
- Fixed instance migration with missing disk symlinks
1486
- Fixed handling of unknown jobs in ``gnt-job archive``
1487
- And many other small fixes/improvements
1488

    
1489
Internal changes:
1490

    
1491
- Enhanced both the unittest and the QA coverage
1492
- Switched the opcode validation to a generic model, and extended the
1493
  validation to all opcode parameters
1494
- Changed more parts of the code that write shell scripts to use the
1495
  same class for this
1496
- Switched the master daemon to use the asyncore library for the Luxi
1497
  server endpoint
1498

    
1499

    
1500
Version 2.2.0 beta0
1501
-------------------
1502

    
1503
*(Released Thu, 17 Jun 2010)*
1504

    
1505
- Added tool (``move-instance``) and infrastructure to move instances
1506
  between separate clusters (see :doc:`separate documentation
1507
  <move-instance>` and :doc:`design document <design-2.2>`)
1508
- Added per-request RPC timeout
1509
- RAPI now requires a Content-Type header for requests with a body (e.g.
1510
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
1511
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
1512
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
1513
  reachable
1514
- Implemented initial support for running Ganeti daemons as separate
1515
  users, see configure-time flags ``--with-user-prefix`` and
1516
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
1517
  time)
1518
- Instances can be removed after export (``gnt-backup export
1519
  --remove-instance``)
1520
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
1521
  key (instead of 1024 bit)
1522
- Added new cluster configuration file for cluster domain secret
1523
- Import/export now use SSL instead of SSH
1524
- Added support for showing estimated time when exporting an instance,
1525
  see the ``ganeti-os-interface(7)`` manpage and look for
1526
  ``EXP_SIZE_FD``
1527

    
1528

    
1529
Version 2.1.8
1530
-------------
1531

    
1532
*(Released Tue, 16 Nov 2010)*
1533

    
1534
Some more bugfixes. Unless critical bugs occur, this will be the last
1535
2.1 release:
1536

    
1537
- Fix case of MAC special-values
1538
- Fix mac checker regex
1539
- backend: Fix typo causing "out of range" error
1540
- Add missing --units in gnt-instance list man page
1541

    
1542

    
1543
Version 2.1.7
1544
-------------
1545

    
1546
*(Released Tue, 24 Aug 2010)*
1547

    
1548
Bugfixes only:
1549
  - Don't ignore secondary node silently on non-mirrored disk templates
1550
    (issue 113)
1551
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
1552
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
1553
  - Properly document the usb_mouse parameter
1554
  - Fix path in ganeti-rapi(8) (issue 116)
1555
  - Adjust error message when the ganeti user's .ssh directory is
1556
    missing
1557
  - Add same-node-check when changing the disk template to drbd
1558

    
1559

    
1560
Version 2.1.6
1561
-------------
1562

    
1563
*(Released Fri, 16 Jul 2010)*
1564

    
1565
Bugfixes only:
1566
  - Add an option to only select some reboot types during qa/burnin.
1567
    (on some hypervisors consequent reboots are not supported)
1568
  - Fix infrequent race condition in master failover. Sometimes the old
1569
    master ip address would be still detected as up for a short time
1570
    after it was removed, causing failover to fail.
1571
  - Decrease mlockall warnings when the ctypes module is missing. On
1572
    Python 2.4 we support running even if no ctypes module is installed,
1573
    but we were too verbose about this issue.
1574
  - Fix building on old distributions, on which man doesn't have a
1575
    --warnings option.
1576
  - Fix RAPI not to ignore the MAC address on instance creation
1577
  - Implement the old instance creation format in the RAPI client.
1578

    
1579

    
1580
Version 2.1.5
1581
-------------
1582

    
1583
*(Released Thu, 01 Jul 2010)*
1584

    
1585
A small bugfix release:
1586
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
1587
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
1588
    a non-existing option
1589
  - Fix instance create: the --force-variant option was ignored
1590
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
1591
  - Fix modify node storage with non-FQDN arguments
1592
  - Fix RAPI client to authenticate under Python 2.6 when used
1593
    for more than 5 requests needing authentication
1594
  - Fix gnt-instance modify -t (storage) giving a wrong error message
1595
    when converting a non-shutdown drbd instance to plain
1596

    
1597

    
1598
Version 2.1.4
1599
-------------
1600

    
1601
*(Released Fri, 18 Jun 2010)*
1602

    
1603
A small bugfix release:
1604

    
1605
  - Fix live migration of KVM instances started with older Ganeti
1606
    versions which had fewer hypervisor parameters
1607
  - Fix gnt-instance grow-disk on down instances
1608
  - Fix an error-reporting bug during instance migration
1609
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
1610
    silently ignoring broken ones
1611
  - Fix an RPC error reporting bug affecting, for example, RAPI client
1612
    users
1613
  - Fix bug triggered by different API version os-es on different nodes
1614
  - Fix a bug in instance startup with custom hvparams: OS level
1615
    parameters would fail to be applied.
1616
  - Fix the RAPI client under Python 2.6 (but more work is needed to
1617
    make it work completely well with OpenSSL)
1618
  - Fix handling of errors when resolving names from DNS
1619

    
1620

    
1621
Version 2.1.3
1622
-------------
1623

    
1624
*(Released Thu, 3 Jun 2010)*
1625

    
1626
A medium sized development cycle. Some new features, and some
1627
fixes/small improvements/cleanups.
1628

    
1629
Significant features
1630
~~~~~~~~~~~~~~~~~~~~
1631

    
1632
The node deamon now tries to mlock itself into memory, unless the
1633
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1634
its logs, and falls back to console logging. This allows emergency
1635
features such as ``gnt-node powercycle`` to work even in the event of a
1636
broken node disk (tested offlining the disk hosting the node's
1637
filesystem and dropping its memory caches; don't try this at home)
1638

    
1639
KVM: add vhost-net acceleration support. It can be tested with a new
1640
enough version of the kernel and of qemu-kvm.
1641

    
1642
KVM: Add instance chrooting feature. If you use privilege dropping for
1643
your VMs you can also now force them to chroot to an empty directory,
1644
before starting the emulated guest.
1645

    
1646
KVM: Add maximum migration bandwith and maximum downtime tweaking
1647
support (requires a new-enough version of qemu-kvm).
1648

    
1649
Cluster verify will now warn if the master node doesn't have the master
1650
ip configured on it.
1651

    
1652
Add a new (incompatible) instance creation request format to RAPI which
1653
supports all parameters (previously only a subset was supported, and it
1654
wasn't possible to extend the old format to accomodate all the new
1655
features. The old format is still supported, and a client can check for
1656
this feature, before using it, by checking for its presence in the
1657
``features`` RAPI resource.
1658

    
1659
Now with ancient latin support. Try it passing the ``--roman`` option to
1660
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1661
(requires the python-roman module to be installed, in order to work).
1662

    
1663
Other changes
1664
~~~~~~~~~~~~~
1665

    
1666
As usual many internal code refactorings, documentation updates, and
1667
such. Among others:
1668

    
1669
  - Lots of improvements and cleanups to the experimental Remote API
1670
    (RAPI) client library.
1671
  - A new unit test suite for the core daemon libraries.
1672
  - A fix to creating missing directories makes sure the umask is not
1673
    applied anymore. This enforces the same directory permissions
1674
    everywhere.
1675
  - Better handling terminating daemons with ctrl+c (used when running
1676
    them in debugging mode).
1677
  - Fix a race condition in live migrating a KVM instance, when stat()
1678
    on the old proc status file returned EINVAL, which is an unexpected
1679
    value.
1680
  - Fixed manpage checking with newer man and utf-8 charachters. But now
1681
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1682

    
1683

    
1684
Version 2.1.2.1
1685
---------------
1686

    
1687
*(Released Fri, 7 May 2010)*
1688

    
1689
Fix a bug which prevented untagged KVM instances from starting.
1690

    
1691

    
1692
Version 2.1.2
1693
-------------
1694

    
1695
*(Released Fri, 7 May 2010)*
1696

    
1697
Another release with a long development cycle, during which many
1698
different features were added.
1699

    
1700
Significant features
1701
~~~~~~~~~~~~~~~~~~~~
1702

    
1703
The KVM hypervisor now can run the individual instances as non-root, to
1704
reduce the impact of a VM being hijacked due to bugs in the
1705
hypervisor. It is possible to run all instances as a single (non-root)
1706
user, to manually specify a user for each instance, or to dynamically
1707
allocate a user out of a cluster-wide pool to each instance, with the
1708
guarantee that no two instances will run under the same user ID on any
1709
given node.
1710

    
1711
An experimental RAPI client library, that can be used standalone
1712
(without the other Ganeti libraries), is provided in the source tree as
1713
``lib/rapi/client.py``. Note this client might change its interface in
1714
the future, as we iterate on its capabilities.
1715

    
1716
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1717
replace the cluster's certificates and crypto keys. This might help in
1718
case they have been compromised, or have simply expired.
1719

    
1720
A new disk option for instance creation has been added that allows one
1721
to "adopt" currently existing logical volumes, with data
1722
preservation. This should allow easier migration to Ganeti from
1723
unmanaged (or managed via other software) instances.
1724

    
1725
Another disk improvement is the possibility to convert between redundant
1726
(DRBD) and plain (LVM) disk configuration for an instance. This should
1727
allow better scalability (starting with one node and growing the
1728
cluster, or shrinking a two-node cluster to one node).
1729

    
1730
A new feature that could help with automated node failovers has been
1731
implemented: if a node sees itself as offline (by querying the master
1732
candidates), it will try to shutdown (hard) all instances and any active
1733
DRBD devices. This reduces the risk of duplicate instances if an
1734
external script automatically failovers the instances on such nodes. To
1735
enable this, the cluster parameter ``maintain_node_health`` should be
1736
enabled; in the future this option (per the name) will enable other
1737
automatic maintenance features.
1738

    
1739
Instance export/import now will reuse the original instance
1740
specifications for all parameters; that means exporting an instance,
1741
deleting it and the importing it back should give an almost identical
1742
instance. Note that the default import behaviour has changed from
1743
before, where it created only one NIC; now it recreates the original
1744
number of NICs.
1745

    
1746
Cluster verify has added a few new checks: SSL certificates validity,
1747
/etc/hosts consistency across the cluster, etc.
1748

    
1749
Other changes
1750
~~~~~~~~~~~~~
1751

    
1752
As usual, many internal changes were done, documentation fixes,
1753
etc. Among others:
1754

    
1755
- Fixed cluster initialization with disabled cluster storage (regression
1756
  introduced in 2.1.1)
1757
- File-based storage supports growing the disks
1758
- Fixed behaviour of node role changes
1759
- Fixed cluster verify for some corner cases, plus a general rewrite of
1760
  cluster verify to allow future extension with more checks
1761
- Fixed log spamming by watcher and node daemon (regression introduced
1762
  in 2.1.1)
1763
- Fixed possible validation issues when changing the list of enabled
1764
  hypervisors
1765
- Fixed cleanup of /etc/hosts during node removal
1766
- Fixed RAPI response for invalid methods
1767
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1768
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1769
  from ide disks, etc.)
1770
- Allow OS changes without re-installation (to record a changed OS
1771
  outside of Ganeti, or to allow OS renames)
1772
- Allow instance creation without OS installation (useful for example if
1773
  the OS will be installed manually, or restored from a backup not in
1774
  Ganeti format)
1775
- Implemented option to make cluster ``copyfile`` use the replication
1776
  network
1777
- Added list of enabled hypervisors to ssconf (possibly useful for
1778
  external scripts)
1779
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1780
  1.2 clusters
1781
- A partial form of node re-IP is possible via node readd, which now
1782
  allows changed node primary IP
1783
- Command line utilities now show an informational message if the job is
1784
  waiting for a lock
1785
- The logs of the master daemon now show the PID/UID/GID of the
1786
  connected client
1787

    
1788

    
1789
Version 2.1.1
1790
-------------
1791

    
1792
*(Released Fri, 12 Mar 2010)*
1793

    
1794
During the 2.1.0 long release candidate cycle, a lot of improvements and
1795
changes have accumulated with were released later as 2.1.1.
1796

    
1797
Major changes
1798
~~~~~~~~~~~~~
1799

    
1800
The node evacuate command (``gnt-node evacuate``) was significantly
1801
rewritten, and as such the IAllocator protocol was changed - a new
1802
request type has been added. This unfortunate change during a stable
1803
series is designed to improve performance of node evacuations; on
1804
clusters with more than about five nodes and which are well-balanced,
1805
evacuation should proceed in parallel for all instances of the node
1806
being evacuated. As such, any existing IAllocator scripts need to be
1807
updated, otherwise the above command will fail due to the unknown
1808
request. The provided "dumb" allocator has not been updated; but the
1809
ganeti-htools package supports the new protocol since version 0.2.4.
1810

    
1811
Another important change is increased validation of node and instance
1812
names. This might create problems in special cases, if invalid host
1813
names are being used.
1814

    
1815
Also, a new layer of hypervisor parameters has been added, that sits at
1816
OS level between the cluster defaults and the instance ones. This allows
1817
customisation of virtualization parameters depending on the installed
1818
OS. For example instances with OS 'X' may have a different KVM kernel
1819
(or any other parameter) than the cluster defaults. This is intended to
1820
help managing a multiple OSes on the same cluster, without manual
1821
modification of each instance's parameters.
1822

    
1823
A tool for merging clusters, ``cluster-merge``, has been added in the
1824
tools sub-directory.
1825

    
1826
Bug fixes
1827
~~~~~~~~~
1828

    
1829
- Improved the int/float conversions that should make the code more
1830
  robust in face of errors from the node daemons
1831
- Fixed the remove node code in case of internal configuration errors
1832
- Fixed the node daemon behaviour in face of inconsistent queue
1833
  directory (e.g. read-only file-system where we can't open the files
1834
  read-write, etc.)
1835
- Fixed the behaviour of gnt-node modify for master candidate demotion;
1836
  now it either aborts cleanly or, if given the new "auto_promote"
1837
  parameter, will automatically promote other nodes as needed
1838
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
1839
  completely prevent Ganeti from working
1840
- Fixed bug for instance export when not all disks were successfully
1841
  exported
1842
- Fixed behaviour of node add when the new node is slow in starting up
1843
  the node daemon
1844
- Fixed handling of signals in the LUXI client, which should improve
1845
  behaviour of command-line scripts
1846
- Added checks for invalid node/instance names in the configuration (now
1847
  flagged during cluster verify)
1848
- Fixed watcher behaviour for disk activation errors
1849
- Fixed two potentially endless loops in http library, which led to the
1850
  RAPI daemon hanging and consuming 100% CPU in some cases
1851
- Fixed bug in RAPI daemon related to hashed passwords
1852
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
1853
  instances
1854
- Enhanced compatibility with non-Debian OSes, but not using absolute
1855
  path in some commands and allowing customisation of the ssh
1856
  configuration directory
1857
- Fixed possible future issue with new Python versions by abiding to the
1858
  proper use of ``__slots__`` attribute on classes
1859
- Added checks that should prevent directory traversal attacks
1860
- Many documentation fixes based on feedback from users
1861

    
1862
New features
1863
~~~~~~~~~~~~
1864

    
1865
- Added an "early_release" more for instance replace disks and node
1866
  evacuate, where we release locks earlier and thus allow higher
1867
  parallelism within the cluster
1868
- Added watcher hooks, intended to allow the watcher to restart other
1869
  daemons (e.g. from the ganeti-nbma project), but they can be used of
1870
  course for any other purpose
1871
- Added a compile-time disable for DRBD barriers, to increase
1872
  performance if the administrator trusts the power supply or the
1873
  storage system to not lose writes
1874
- Added the option of using syslog for logging instead of, or in
1875
  addition to, Ganeti's own log files
1876
- Removed boot restriction for paravirtual NICs for KVM, recent versions
1877
  can indeed boot from a paravirtual NIC
1878
- Added a generic debug level for many operations; while this is not
1879
  used widely yet, it allows one to pass the debug value all the way to
1880
  the OS scripts
1881
- Enhanced the hooks environment for instance moves (failovers,
1882
  migrations) where the primary/secondary nodes changed during the
1883
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1884
- Enhanced data validations for many user-supplied values; one important
1885
  item is the restrictions imposed on instance and node names, which
1886
  might reject some (invalid) host names
1887
- Add a configure-time option to disable file-based storage, if it's not
1888
  needed; this allows greater security separation between the master
1889
  node and the other nodes from the point of view of the inter-node RPC
1890
  protocol
1891
- Added user notification in interactive tools if job is waiting in the
1892
  job queue or trying to acquire locks
1893
- Added log messages when a job is waiting for locks
1894
- Added filtering by node tags in instance operations which admit
1895
  multiple instances (start, stop, reboot, reinstall)
1896
- Added a new tool for cluster mergers, ``cluster-merge``
1897
- Parameters from command line which are of the form ``a=b,c=d`` can now
1898
  use backslash escapes to pass in values which contain commas,
1899
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1900
  ``b,c``
1901
- For KVM, the instance name is the first parameter passed to KVM, so
1902
  that it's more visible in the process list
1903

    
1904

    
1905
Version 2.1.0
1906
-------------
1907

    
1908
*(Released Tue, 2 Mar 2010)*
1909

    
1910
Ganeti 2.1 brings many improvements with it. Major changes:
1911

    
1912
- Added infrastructure to ease automated disk repairs
1913
- Added new daemon to export configuration data in a cheaper way than
1914
  using the remote API
1915
- Instance NICs can now be routed instead of being associated with a
1916
  networking bridge
1917
- Improved job locking logic to reduce impact of jobs acquiring multiple
1918
  locks waiting for other long-running jobs
1919

    
1920
In-depth implementation details can be found in the Ganeti 2.1 design
1921
document.
1922

    
1923
Details
1924
~~~~~~~
1925

    
1926
- Added chroot hypervisor
1927
- Added more options to xen-hvm hypervisor (``kernel_path`` and
1928
  ``device_model``)
1929
- Added more options to xen-pvm hypervisor (``use_bootloader``,
1930
  ``bootloader_path`` and ``bootloader_args``)
1931
- Added the ``use_localtime`` option for the xen-hvm and kvm
1932
  hypervisors, and the default value for this has changed to false (in
1933
  2.0 xen-hvm always enabled it)
1934
- Added luxi call to submit multiple jobs in one go
1935
- Added cluster initialization option to not modify ``/etc/hosts``
1936
  file on nodes
1937
- Added network interface parameters
1938
- Added dry run mode to some LUs
1939
- Added RAPI resources:
1940

    
1941
  - ``/2/instances/[instance_name]/info``
1942
  - ``/2/instances/[instance_name]/replace-disks``
1943
  - ``/2/nodes/[node_name]/evacuate``
1944
  - ``/2/nodes/[node_name]/migrate``
1945
  - ``/2/nodes/[node_name]/role``
1946
  - ``/2/nodes/[node_name]/storage``
1947
  - ``/2/nodes/[node_name]/storage/modify``
1948
  - ``/2/nodes/[node_name]/storage/repair``
1949

    
1950
- Added OpCodes to evacuate or migrate all instances on a node
1951
- Added new command to list storage elements on nodes (``gnt-node
1952
  list-storage``) and modify them (``gnt-node modify-storage``)
1953
- Added new ssconf files with master candidate IP address
1954
  (``ssconf_master_candidates_ips``), node primary IP address
1955
  (``ssconf_node_primary_ips``) and node secondary IP address
1956
  (``ssconf_node_secondary_ips``)
1957
- Added ``ganeti-confd`` and a client library to query the Ganeti
1958
  configuration via UDP
1959
- Added ability to run hooks after cluster initialization and before
1960
  cluster destruction
1961
- Added automatic mode for disk replace (``gnt-instance replace-disks
1962
  --auto``)
1963
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
1964
  after catastrophic data-loss
1965
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
1966
  groups
1967
- Added ``gnt-instance move`` command to move instances
1968
- Added ``gnt-cluster watcher`` command to control watcher
1969
- Added ``gnt-node powercycle`` command to powercycle nodes
1970
- Added new job status field ``lock_status``
1971
- Added parseable error codes to cluster verification (``gnt-cluster
1972
  verify --error-codes``) and made output less verbose (use
1973
  ``--verbose`` to restore previous behaviour)
1974
- Added UUIDs to the main config entities (cluster, nodes, instances)
1975
- Added support for OS variants
1976
- Added support for hashed passwords in the Ganeti remote API users file
1977
  (``rapi_users``)
1978
- Added option to specify maximum timeout on instance shutdown
1979
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
1980
- Added new helper script to start and stop Ganeti daemons
1981
  (``daemon-util``), with the intent to reduce the work necessary to
1982
  adjust Ganeti for non-Debian distributions and to start/stop daemons
1983
  from one place
1984
- Added more unittests
1985
- Fixed critical bug in ganeti-masterd startup
1986
- Removed the configure-time ``kvm-migration-port`` parameter, this is
1987
  now customisable at the cluster level for both the KVM and Xen
1988
  hypervisors using the new ``migration_port`` parameter
1989
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
1990
  reinstalling an instance
1991
- Allowed ``@`` in tag names
1992
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
1993
- Many documentation updates
1994
- Distribute hypervisor files on ``gnt-cluster redist-conf``
1995
- ``gnt-instance reinstall`` can now reinstall multiple instances
1996
- Updated many command line parameters
1997
- Introduced new OS API version 15
1998
- No longer support a default hypervisor
1999
- Treat virtual LVs as inexistent
2000
- Improved job locking logic to reduce lock contention
2001
- Match instance and node names case insensitively
2002
- Reimplemented bash completion script to be more complete
2003
- Improved burnin
2004

    
2005

    
2006
Version 2.0.6
2007
-------------
2008

    
2009
*(Released Thu, 4 Feb 2010)*
2010

    
2011
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2012
- Fix a string formatting bug
2013
- Improve safety of the code in some error paths
2014
- Improve data validation in the master of values returned from nodes
2015

    
2016

    
2017
Version 2.0.5
2018
-------------
2019

    
2020
*(Released Thu, 17 Dec 2009)*
2021

    
2022
- Fix security issue due to missing validation of iallocator names; this
2023
  allows local and remote execution of arbitrary executables
2024
- Fix failure of gnt-node list during instance removal
2025
- Ship the RAPI documentation in the archive
2026

    
2027

    
2028
Version 2.0.4
2029
-------------
2030

    
2031
*(Released Wed, 30 Sep 2009)*
2032

    
2033
- Fixed many wrong messages
2034
- Fixed a few bugs related to the locking library
2035
- Fixed MAC checking at instance creation time
2036
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
2037
- Fixed a few issues related to signal handling in both daemons and
2038
  scripts
2039
- Fixed the example startup script provided
2040
- Fixed insserv dependencies in the example startup script (patch from
2041
  Debian)
2042
- Fixed handling of drained nodes in the iallocator framework
2043
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2044
  #528618)
2045
- Fixed error related to invalid job IDs in job polling
2046
- Fixed job/opcode persistence on unclean master shutdown
2047
- Fixed handling of partial job processing after unclean master
2048
  shutdown
2049
- Fixed error reporting from LUs, previously all errors were converted
2050
  into execution errors
2051
- Fixed error reporting from burnin
2052
- Decreased significantly the memory usage of the job queue
2053
- Optimised slightly multi-job submission
2054
- Optimised slightly opcode loading
2055
- Backported the multi-job submit framework from the development
2056
  branch; multi-instance start and stop should be faster
2057
- Added script to clean archived jobs after 21 days; this will reduce
2058
  the size of the queue directory
2059
- Added some extra checks in disk size tracking
2060
- Added an example ethers hook script
2061
- Added a cluster parameter that prevents Ganeti from modifying of
2062
  /etc/hosts
2063
- Added more node information to RAPI responses
2064
- Added a ``gnt-job watch`` command that allows following the ouput of a
2065
  job
2066
- Added a bind-address option to ganeti-rapi
2067
- Added more checks to the configuration verify
2068
- Enhanced the burnin script such that some operations can be retried
2069
  automatically
2070
- Converted instance reinstall to multi-instance model
2071

    
2072

    
2073
Version 2.0.3
2074
-------------
2075

    
2076
*(Released Fri, 7 Aug 2009)*
2077

    
2078
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2079
  to allow using the pre-2.0.2 behaviour in activation, if any existing
2080
  instances have mismatched disk sizes in the configuration
2081
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
2082
  any configuration mismatches for disk sizes
2083
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2084
  failover to work on two-node clusters
2085
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2086
  unusable
2087
- Fixed detection of OS script errors in ``gnt-backup export``
2088
- Fixed exit code of ``gnt-backup export``
2089

    
2090

    
2091
Version 2.0.2
2092
-------------
2093

    
2094
*(Released Fri, 17 Jul 2009)*
2095

    
2096
- Added experimental support for stripped logical volumes; this should
2097
  enhance performance but comes with a higher complexity in the block
2098
  device handling; stripping is only enabled when passing
2099
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2100
  affected even in the non-stripped mode
2101
- Improved resiliency against transient failures at the end of DRBD
2102
  resyncs, and in general of DRBD resync checks
2103
- Fixed a couple of issues with exports and snapshot errors
2104
- Fixed a couple of issues in instance listing
2105
- Added display of the disk size in ``gnt-instance info``
2106
- Fixed checking for valid OSes in instance creation
2107
- Fixed handling of the "vcpus" parameter in instance listing and in
2108
  general of invalid parameters
2109
- Fixed http server library, and thus RAPI, to handle invalid
2110
  username/password combinations correctly; this means that now they
2111
  report unauthorized for queries too, not only for modifications,
2112
  allowing earlier detect of configuration problems
2113
- Added a new "role" node list field, equivalent to the master/master
2114
  candidate/drained/offline flags combinations
2115
- Fixed cluster modify and changes of candidate pool size
2116
- Fixed cluster verify error messages for wrong files on regular nodes
2117
- Fixed a couple of issues with node demotion from master candidate role
2118
- Fixed node readd issues
2119
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2120
- Added a new ``--no-voting`` option for masterfailover to fix failover
2121
  on two-nodes clusters when the former master node is unreachable
2122
- Added instance reinstall over RAPI
2123

    
2124

    
2125
Version 2.0.1
2126
-------------
2127

    
2128
*(Released Tue, 16 Jun 2009)*
2129

    
2130
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2131
  allow re-adding the start in single-user option (regression from 1.2)
2132
- the watcher writes the instance status to a file, to allow monitoring
2133
  to report the instance status (from the master) based on cached
2134
  results of the watcher's queries; while this can get stale if the
2135
  watcher is being locked due to other work on the cluster, this is
2136
  still an improvement
2137
- the watcher now also restarts the node daemon and the rapi daemon if
2138
  they died
2139
- fixed the watcher to handle full and drained queue cases
2140
- hooks export more instance data in the environment, which helps if
2141
  hook scripts need to take action based on the instance's properties
2142
  (no longer need to query back into ganeti)
2143
- instance failovers when the instance is stopped do not check for free
2144
  RAM, so that failing over a stopped instance is possible in low memory
2145
  situations
2146
- rapi uses queries for tags instead of jobs (for less job traffic), and
2147
  for cluster tags it won't talk to masterd at all but read them from
2148
  ssconf
2149
- a couple of error handling fixes in RAPI
2150
- drbd handling: improved the error handling of inconsistent disks after
2151
  resync to reduce the frequency of "there are some degraded disks for
2152
  this instance" messages
2153
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2154
  error handling path called a wrong function name)
2155

    
2156

    
2157
Version 2.0.0
2158
-------------
2159

    
2160
*(Released Wed, 27 May 2009)*
2161

    
2162
- no changes from rc5
2163

    
2164

    
2165
Version 2.0 rc5
2166
---------------
2167

    
2168
*(Released Wed, 20 May 2009)*
2169

    
2170
- fix a couple of bugs (validation, argument checks)
2171
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2172
- some small improvements to RAPI and IAllocator
2173
- make watcher automatically start the master daemon if down
2174

    
2175

    
2176
Version 2.0 rc4
2177
---------------
2178

    
2179
*(Released Mon, 27 Apr 2009)*
2180

    
2181
- change the OS list to not require locks; this helps with big clusters
2182
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2183
  volume group is broken
2184
- ``gnt-instance info``, without any arguments, doesn't run for all
2185
  instances anymore; either pass ``--all`` or pass the desired
2186
  instances; this helps against mistakes on big clusters where listing
2187
  the information for all instances takes a long time
2188
- miscellaneous doc and man pages fixes
2189

    
2190

    
2191
Version 2.0 rc3
2192
---------------
2193

    
2194
*(Released Wed, 8 Apr 2009)*
2195

    
2196
- Change the internal locking model of some ``gnt-node`` commands, in
2197
  order to reduce contention (and blocking of master daemon) when
2198
  batching many creation/reinstall jobs
2199
- Fixes to Xen soft reboot
2200
- No longer build documentation at build time, instead distribute it in
2201
  the archive, in order to reduce the need for the whole docbook/rst
2202
  toolchains
2203

    
2204

    
2205
Version 2.0 rc2
2206
---------------
2207

    
2208
*(Released Fri, 27 Mar 2009)*
2209

    
2210
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2211
- Fix watcher startup sequence, improves the behaviour of busy clusters
2212
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2213
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2214
  bind address and other places
2215
- Some documentation fixes and updates
2216

    
2217

    
2218
Version 2.0 rc1
2219
---------------
2220

    
2221
*(Released Mon, 2 Mar 2009)*
2222

    
2223
- More documentation updates, now all docs should be more-or-less
2224
  up-to-date
2225
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2226
  etc.)
2227
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2228
  and KVM)
2229
- Fix an issue related to $libdir/run/ganeti and cluster creation
2230

    
2231

    
2232
Version 2.0 beta2
2233
-----------------
2234

    
2235
*(Released Thu, 19 Feb 2009)*
2236

    
2237
- Xen PVM and KVM have switched the default value for the instance root
2238
  disk to the first partition on the first drive, instead of the whole
2239
  drive; this means that the OS installation scripts must be changed
2240
  accordingly
2241
- Man pages have been updated
2242
- RAPI has been switched by default to HTTPS, and the exported functions
2243
  should all work correctly
2244
- RAPI v1 has been removed
2245
- Many improvements to the KVM hypervisor
2246
- Block device errors are now better reported
2247
- Many other bugfixes and small improvements
2248

    
2249

    
2250
Version 2.0 beta1
2251
-----------------
2252

    
2253
*(Released Mon, 26 Jan 2009)*
2254

    
2255
- Version 2 is a general rewrite of the code and therefore the
2256
  differences are too many to list, see the design document for 2.0 in
2257
  the ``doc/`` subdirectory for more details
2258
- In this beta version there is not yet a migration path from 1.2 (there
2259
  will be one in the final 2.0 release)
2260
- A few significant changes are:
2261

    
2262
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2263
    various ``gnt-*`` commands are just front-ends to it
2264
  - all the commands are entered into, and executed from a job queue,
2265
    see the ``gnt-job(8)`` manpage
2266
  - the RAPI daemon supports read-write operations, secured by basic
2267
    HTTP authentication on top of HTTPS
2268
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2269
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2270
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2271
  - DRBD devices are using statically allocated minor numbers, which
2272
    will be assigned to existing instances during the migration process
2273
  - there is support for both Xen PVM and Xen HVM instances running on
2274
    the same cluster
2275
  - KVM virtualization is supported too
2276
  - file-based storage has been implemented, which means that it is
2277
    possible to run the cluster without LVM and DRBD storage, for
2278
    example using a shared filesystem exported from shared storage (and
2279
    still have live migration)
2280

    
2281

    
2282
Version 1.2.7
2283
-------------
2284

    
2285
*(Released Tue, 13 Jan 2009)*
2286

    
2287
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2288
- Reuse the old instance mac address by default on instance import, if
2289
  the instance name is the same.
2290
- Handle situations in which the node info rpc returns incomplete
2291
  results (issue 46)
2292
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2293
- Improved version of batcher:
2294

    
2295
  - state file support
2296
  - instance mac address support
2297
  - support for HVM clusters/instances
2298

    
2299
- Add an option to show the number of cpu sockets and nodes in
2300
  ``gnt-node list``
2301
- Support OSes that handle more than one version of the OS api (but do
2302
  not change the current API in any other way)
2303
- Fix ``gnt-node migrate``
2304
- ``gnt-debug`` man page
2305
- Fixes various more typos and small issues
2306
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2307

    
2308

    
2309
Version 1.2.6
2310
-------------
2311

    
2312
*(Released Wed, 24 Sep 2008)*
2313

    
2314
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2315
  type of disk exported to fully virtualized instances.
2316
- provide access to the serial console of HVM instances
2317
- instance auto_balance flag, set by default. If turned off it will
2318
  avoid warnings on cluster verify if there is not enough memory to fail
2319
  over an instance. in the future it will prevent automatically failing
2320
  it over when we will support that.
2321
- batcher tool for instance creation, see ``tools/README.batcher``
2322
- ``gnt-instance reinstall --select-os`` to interactively select a new
2323
  operating system when reinstalling an instance.
2324
- when changing the memory amount on instance modify a check has been
2325
  added that the instance will be able to start. also warnings are
2326
  emitted if the instance will not be able to fail over, if auto_balance
2327
  is true.
2328
- documentation fixes
2329
- sync fields between ``gnt-instance list/modify/add/import``
2330
- fix a race condition in drbd when the sync speed was set after giving
2331
  the device a remote peer.
2332

    
2333

    
2334
Version 1.2.5
2335
-------------
2336

    
2337
*(Released Tue, 22 Jul 2008)*
2338

    
2339
- note: the allowed size and number of tags per object were reduced
2340
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2341
- fixed twisted 8.x compatibility
2342
- fixed ``gnt-instance replace-disks`` with iallocator
2343
- add TCP keepalives on twisted connections to detect restarted nodes
2344
- disk increase support, see ``gnt-instance grow-disk``
2345
- implement bulk node/instance query for RAPI
2346
- add tags in node/instance listing (optional)
2347
- experimental migration (and live migration) support, read the man page
2348
  for ``gnt-instance migrate``
2349
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2350
  has some small improvements in handling its state file
2351

    
2352

    
2353
Version 1.2.4
2354
-------------
2355

    
2356
*(Released Fri, 13 Jun 2008)*
2357

    
2358
- Experimental readonly, REST-based remote API implementation;
2359
  automatically started on master node, TCP port 5080, if enabled by
2360
  ``--enable-rapi`` parameter to configure script.
2361
- Instance allocator support. Add and import instance accept a
2362
  ``--iallocator`` parameter, and call that instance allocator to decide
2363
  which node to use for the instance. The iallocator document describes
2364
  what's expected from an allocator script.
2365
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2366
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2367
  node is lost there is still enough memory to fail over the instances
2368
  that reside on it.
2369
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2370
  ``gnt-cluster verify``, to check for site-specific compliance. All the
2371
  hooks will run, and their output, if any, will be displayed. Any
2372
  failing hook will make the verification return an error value.
2373
- ``gnt-cluster verify`` now checks that its peers are reachable on the
2374
  primary and secondary interfaces
2375
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2376
  that is still declared as part of the cluster and has failed.
2377
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
2378
  specifying output fields, that just adds the chosen fields to the
2379
  default ones.
2380
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
2381
  export from the filesystem.
2382
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2383
  have been added. Using them you can enable/disable acpi and pae
2384
  support, and specify a path for a cd image to be exported to the
2385
  instance. These parameters as the name suggest only work on HVM
2386
  clusters.
2387
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2388
  PAE support will be set to the previously hardcoded values, but the
2389
  (previously hardcoded) path to the CDROM ISO image will be unset and
2390
  if required, needs to be set manually with ``gnt-instance modify``
2391
  after the upgrade.
2392
- The address to which an instance's VNC console is bound is now
2393
  selectable per-instance, rather than being cluster wide. Of course
2394
  this only applies to instances controlled via VNC, so currently just
2395
  applies to HVM clusters.
2396

    
2397

    
2398
Version 1.2.3
2399
-------------
2400

    
2401
*(Released Mon, 18 Feb 2008)*
2402

    
2403
- more tweaks to the disk activation code (especially helpful for DRBD)
2404
- change the default ``gnt-instance list`` output format, now there is
2405
  one combined status field (see the manpage for the exact values this
2406
  field will have)
2407
- some more fixes for the mac export to hooks change
2408
- make Ganeti not break with DRBD 8.2.x (which changed the version
2409
  format in ``/proc/drbd``) (issue 24)
2410
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2411
  template, allowing migration from DRBD0.7+MD to DRBD8
2412

    
2413

    
2414
Version 1.2.2
2415
-------------
2416

    
2417
*(Released Wed, 30 Jan 2008)*
2418

    
2419
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
2420
  support (issue 23)
2421
- add command aliases infrastructure and a few aliases
2422
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
2423
  man pages and the ``--help`` option of ``gnt-node
2424
  list``/``gnt-instance list``
2425
- fix ``gnt-backup list`` with down nodes (issue 21)
2426
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
2427
- fix the dist archive and add a check for including svn/git files in
2428
  the future
2429
- some developer-related changes: improve the burnin and the QA suite,
2430
  add an upload script for testing during development
2431

    
2432

    
2433
Version 1.2.1
2434
-------------
2435

    
2436
*(Released Wed, 16 Jan 2008)*
2437

    
2438
- experimental HVM support, read the install document, section
2439
  "Initializing the cluster"
2440
- allow for the PVM hypervisor per-instance kernel and initrd paths
2441
- add a new command ``gnt-cluster verify-disks`` which uses a new
2442
  algorithm to improve the reconnection of the DRBD pairs if the device
2443
  on the secondary node has gone away
2444
- make logical volume code auto-activate LVs at disk activation time
2445
- slightly improve the speed of activating disks
2446
- allow specification of the MAC address at instance creation time, and
2447
  changing it later via ``gnt-instance modify``
2448
- fix handling of external commands that generate lots of output on
2449
  stderr
2450
- update documentation with regard to minimum version of DRBD8 supported
2451

    
2452

    
2453
Version 1.2.0
2454
-------------
2455

    
2456
*(Released Tue, 4 Dec 2007)*
2457

    
2458
- Log the ``xm create`` output to the node daemon log on failure (to
2459
  help diagnosing the error)
2460
- In debug mode, log all external commands output if failed to the logs
2461
- Change parsing of lvm commands to ignore stderr
2462

    
2463

    
2464
Version 1.2 beta3
2465
-----------------
2466

    
2467
*(Released Wed, 28 Nov 2007)*
2468

    
2469
- Another round of updates to the DRBD 8 code to deal with more failures
2470
  in the replace secondary node operation
2471
- Some more logging of failures in disk operations (lvm, drbd)
2472
- A few documentation updates
2473
- QA updates
2474

    
2475

    
2476
Version 1.2 beta2
2477
-----------------
2478

    
2479
*(Released Tue, 13 Nov 2007)*
2480

    
2481
- Change configuration file format from Python's Pickle to JSON.
2482
  Upgrading is possible using the cfgupgrade utility.
2483
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
2484
  faster replace disks and is more stable (DRBD 8 has many improvements
2485
  compared to DRBD 0.7)
2486
- Added command line tags support (see man pages for ``gnt-instance``,
2487
  ``gnt-node``, ``gnt-cluster``)
2488
- Added instance rename support
2489
- Added multi-instance startup/shutdown
2490
- Added cluster rename support
2491
- Added ``gnt-node evacuate`` to simplify some node operations
2492
- Added instance reboot operation that can speedup reboot as compared to
2493
  stop and start
2494
- Soften the requirement that hostnames are in FQDN format
2495
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
2496
  reboots
2497
- Removed dependency on debian's patched fping that uses the
2498
  non-standard ``-S`` option
2499
- Now the OS definitions are searched for in multiple, configurable
2500
  paths (easier for distros to package)
2501
- Some changes to the hooks infrastructure (especially the new
2502
  post-configuration update hook)
2503
- Other small bugfixes
2504

    
2505
.. vim: set textwidth=72 syntax=rst :
2506
.. Local Variables:
2507
.. mode: rst
2508
.. fill-column: 72
2509
.. End: