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News
2
====
3

    
4

    
5
Version 2.8.0 beta1
6
-------------------
7

    
8
*(unreleased)*
9

    
10
- The minimum Python version needed to run Ganeti is now 2.6.
11
- The :doc:`Remote API <rapi>` daemon now supports a command line flag
12
  to always require authentication, ``--require-authentication``. It can
13
  be specified in ``$sysconfdir/default/ganeti``.
14

    
15

    
16
Version 2.7.0 beta1
17
-------------------
18

    
19
*(Released Wed, 6 Feb 2013)*
20

    
21
- ``gnt-instance batch-create`` has been changed to use the bulk create
22
  opcode from Ganeti. This lead to incompatible changes in the format of
23
  the JSON file. It's now not a custom dict anymore but a dict
24
  compatible with the ``OpInstanceCreate`` opcode.
25
- Parent directories for file storage need to be listed in
26
  ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
27
  write the file automatically based on old configuration values, but it
28
  can not distribute it across all nodes and the file contents should be
29
  verified. Use ``gnt-cluster copyfile
30
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
31
  upgraded. The reason for requiring this list of paths now is that
32
  before it would have been possible to inject new paths via RPC,
33
  allowing files to be created in arbitrary locations. The RPC protocol
34
  is protected using SSL/X.509 certificates, but as a design principle
35
  Ganeti does not permit arbitrary paths to be passed.
36
- The parsing of the variants file for OSes (see
37
  :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
38
  lines and comment lines (starting with ``#``) are ignored for better
39
  readability.
40
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
41
  longer available. ``gnt-node add`` now invokes a new tool on the
42
  destination node, named ``prepare-node-join``, to configure the SSH
43
  daemon. Paramiko is no longer necessary to configure nodes' SSH
44
  daemons via ``gnt-node add``.
45
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
46
  for RAPI users. It allows granting permissions to query for
47
  information to a specific user without giving
48
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
49
- A new tool named ``node-cleanup`` has been added. It cleans remains of
50
  a cluster from a machine by stopping all daemons, removing
51
  certificates and ssconf files. Unless the ``--no-backup`` option is
52
  given, copies of the certificates are made.
53
- Draining (``gnt-cluster queue drain``) and un-draining the job queue
54
  (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
55
  the flag is not reset after a master failover.
56
- Instance creations now support the use of opportunistic locking,
57
  potentially speeding up the (parallel) creation of multiple instances.
58
  This feature is currently only available via the :doc:`RAPI
59
  <rapi>` interface and when an instance allocator is used. If the
60
  ``opportunistic_locking`` parameter is set the opcode will try to
61
  acquire as many locks as possible, but will not wait for any locks
62
  held by other opcodes. If not enough resources can be found to
63
  allocate the instance, the temporary error code
64
  :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
65
  retried thereafter, with or without opportunistic locking.
66
- The functionality for allocating multiple instances at once has been
67
  overhauled and is now also available through :doc:`RAPI <rapi>`.
68
- Man pages can now be included when the documentation is built, in
69
  which case the output is in ``doc/man-html``. The configure-time
70
  option is ``--enable-manpages-in-doc``. Sphinx 1.0 or higher is
71
  required.
72
- A new htool called ``hroller`` helps scheduling parallel shutdown of
73
  nodes on clusters where all instances are shut down, but without ever
74
  rebooting both primary and secondary node for an instance at the same
75
  time.
76
- Queries not needing locks or RPC access to the node can now be
77
  performed by the confd daemon, making them independent from jobs, and
78
  thus faster to execute. This is selectable at configure time.
79
- The KVM hypervisor has been updated with many new hypervisor
80
  parameters, including a generic one for passing arbitrary command line
81
  values. See a complete list in :manpage:`gnt-instance(8)`.
82
- A new tool, called ``mon-collector``, is the stand-alone executor of
83
  the data collectors for a monitoring system. As of this version, it
84
  just includes the DRBD data collector, that can be executed by calling
85
  ``mon-collector`` using the ``drbd`` parameter. See
86
  :manpage:`mon-collector(7)`.
87
- New ``exclusive-storage`` node parameter added. When it's set to true,
88
  physical disks are assigned in an exclusive fashion to instances, as
89
  documented in :doc:`Partitioned Ganeti <design-partitioned>`.
90
  Currently, only instances using the ``plain`` disk template are
91
  supported.
92
- New network management functionality to support automatic allocation
93
  of IP addresses and managing of network parameters. See
94
  :manpage:`gnt-network(8)` for more details.
95
- New external storage backend, to allow managing arbitrary storage
96
  systems external to the cluster. See
97
  :manpage:`ganeti-extstorage-interface(7)`.
98
- Instance renames of LVM-based instances will now update the LV tags
99
  (which can be used to recover the instance-to-LV mapping in case of
100
  emergencies)
101

    
102

    
103
Version 2.6.2
104
-------------
105

    
106
*(Released Fri, 21 Dec 2012)*
107

    
108
Important behaviour change: hbal won't rebalance anymore instances which
109
have the ``auto_balance`` attribute set to false. This was the intention
110
all along, but until now it only skipped those from the N+1 memory
111
reservation (DRBD-specific).
112

    
113
A significant number of bug fixes in this release:
114

    
115
- Fixed disk adoption interaction with ipolicy checks.
116
- Fixed networking issues when instances are started, stopped or
117
  migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
118
- Fixed the warning in cluster verify for shared storage instances not
119
  being redundant.
120
- Fixed removal of storage directory on shared file storage (issue 262).
121
- Fixed validation of LVM volume group name in OpClusterSetParams
122
  (``gnt-cluster modify``) (issue 285).
123
- Fixed runtime memory increases (``gnt-instance modify -m``).
124
- Fixed live migration under Xen's ``xl`` mode.
125
- Fixed ``gnt-instance console`` with ``xl``.
126
- Fixed building with newer Haskell compiler/libraries.
127
- Fixed PID file writing in Haskell daemons (confd); this prevents
128
  restart issues if confd was launched manually (outside of
129
  ``daemon-util``) while another copy of it was running
130
- Fixed a type error when doing live migrations with KVM (issue 297) and
131
  the error messages for failing migrations have been improved.
132
- Fixed opcode validation for the out-of-band commands (``gnt-node
133
  power``).
134
- Fixed a type error when unsetting OS hypervisor parameters (issue
135
  311); now it's possible to unset all OS-specific hypervisor
136
  parameters.
137
- Fixed the ``dry-run`` mode for many operations: verification of
138
  results was over-zealous but didn't take into account the ``dry-run``
139
  operation, resulting in "wrong" failures.
140
- Fixed bash completion in ``gnt-job list`` when the job queue has
141
  hundreds of entries; especially with older ``bash`` versions, this
142
  results in significant CPU usage.
143

    
144
And lastly, a few other improvements have been made:
145

    
146
- Added option to force master-failover without voting (issue 282).
147
- Clarified error message on lock conflict (issue 287).
148
- Logging of newly submitted jobs has been improved (issue 290).
149
- Hostname checks have been made uniform between instance rename and
150
  create (issue 291).
151
- The ``--submit`` option is now supported by ``gnt-debug delay``.
152
- Shutting down the master daemon by sending SIGTERM now stops it from
153
  processing jobs waiting for locks; instead, those jobs will be started
154
  once again after the master daemon is started the next time (issue
155
  296).
156
- Support for Xen's ``xl`` program has been improved (besides the fixes
157
  above).
158
- Reduced logging noise in the Haskell confd daemon (only show one log
159
  entry for each config reload, instead of two).
160
- Several man page updates and typo fixes.
161

    
162

    
163
Version 2.6.1
164
-------------
165

    
166
*(Released Fri, 12 Oct 2012)*
167

    
168
A small bugfix release. Among the bugs fixed:
169

    
170
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
171
  made the command unusable.
172
- Commands that issue many jobs don't fail anymore just because some jobs
173
  take so long that other jobs are archived.
174
- Failures during ``gnt-instance reinstall`` are reflected by the exit
175
  status.
176
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
177
  DRBD is enabled.
178
- When ``always_failover`` is set, ``--allow-failover`` is not required
179
  in migrate commands anymore.
180
- ``bash_completion`` works even if extglob is disabled.
181
- Fixed bug with locks that made failover for RDB-based instances fail.
182
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
183
  a random node instead of one based on the allocator metric.
184
- Support for newer versions of pylint and pep8.
185
- Hail doesn't fail anymore when trying to add an instance of type
186
  ``file``, ``sharedfile`` or ``rbd``.
187
- Added new Makefile target to rebuild the whole distribution, so that
188
  all files are included.
189

    
190

    
191
Version 2.6.0
192
-------------
193

    
194
*(Released Fri, 27 Jul 2012)*
195

    
196

    
197
.. attention:: The ``LUXI`` protocol has been made more consistent
198
   regarding its handling of command arguments. This, however, leads to
199
   incompatibility issues with previous versions. Please ensure that you
200
   restart Ganeti daemons soon after the upgrade, otherwise most
201
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
202
   pausing/resuming the watcher, cancelling and archiving jobs, querying
203
   the cluster configuration) will fail.
204

    
205

    
206
New features
207
~~~~~~~~~~~~
208

    
209
Instance run status
210
+++++++++++++++++++
211

    
212
The current ``admin_up`` field, which used to denote whether an instance
213
should be running or not, has been removed. Instead, ``admin_state`` is
214
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
215

    
216
The rational behind this is that an instance being “down” can have
217
different meanings:
218

    
219
- it could be down during a reboot
220
- it could be temporarily be down for a reinstall
221
- or it could be down because it is deprecated and kept just for its
222
  disk
223

    
224
The previous Boolean state was making it difficult to do capacity
225
calculations: should Ganeti reserve memory for a down instance? Now, the
226
tri-state field makes it clear:
227

    
228
- in ``up`` and ``down`` state, all resources are reserved for the
229
  instance, and it can be at any time brought up if it is down
230
- in ``offline`` state, only disk space is reserved for it, but not
231
  memory or CPUs
232

    
233
The field can have an extra use: since the transition between ``up`` and
234
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
235
transition between ``offline`` and ``down`` is done via ``gnt-instance
236
modify``, it is possible to given different rights to users. For
237
example, owners of an instance could be allowed to start/stop it, but
238
not transition it out of the offline state.
239

    
240
Instance policies and specs
241
+++++++++++++++++++++++++++
242

    
243
In previous Ganeti versions, an instance creation request was not
244
limited on the minimum size and on the maximum size just by the cluster
245
resources. As such, any policy could be implemented only in third-party
246
clients (RAPI clients, or shell wrappers over ``gnt-*``
247
tools). Furthermore, calculating cluster capacity via ``hspace`` again
248
required external input with regards to instance sizes.
249

    
250
In order to improve these workflows and to allow for example better
251
per-node group differentiation, we introduced instance specs, which
252
allow declaring:
253

    
254
- minimum instance disk size, disk count, memory size, cpu count
255
- maximum values for the above metrics
256
- and “standard” values (used in ``hspace`` to calculate the standard
257
  sized instances)
258

    
259
The minimum/maximum values can be also customised at node-group level,
260
for example allowing more powerful hardware to support bigger instance
261
memory sizes.
262

    
263
Beside the instance specs, there are a few other settings belonging to
264
the instance policy framework. It is possible now to customise, per
265
cluster and node-group:
266

    
267
- the list of allowed disk templates
268
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
269
- the maximum ratio of instance to spindles (see below for more
270
  information) for local storage
271

    
272
All these together should allow all tools that talk to Ganeti to know
273
what are the ranges of allowed values for instances and the
274
over-subscription that is allowed.
275

    
276
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
277
instance configuration, and the physical CPU configuration from the
278
node. For the spindle ratios however, we didn't track before these
279
values, so new parameters have been added:
280

    
281
- a new node parameter ``spindle_count``, defaults to 1, customisable at
282
  node group or node level
283
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
284

    
285
Note that spindles in this context doesn't need to mean actual
286
mechanical hard-drives; it's just a relative number for both the node
287
I/O capacity and instance I/O consumption.
288

    
289
Instance migration behaviour
290
++++++++++++++++++++++++++++
291

    
292
While live-migration is in general desirable over failover, it is
293
possible that for some workloads it is actually worse, due to the
294
variable time of the “suspend” phase during live migration.
295

    
296
To allow the tools to work consistently over such instances (without
297
having to hard-code instance names), a new backend parameter
298
``always_failover`` has been added to control the migration/failover
299
behaviour. When set to True, all migration requests for an instance will
300
instead fall-back to failover.
301

    
302
Instance memory ballooning
303
++++++++++++++++++++++++++
304

    
305
Initial support for memory ballooning has been added. The memory for an
306
instance is no longer fixed (backend parameter ``memory``), but instead
307
can vary between minimum and maximum values (backend parameters
308
``minmem`` and ``maxmem``). Currently we only change an instance's
309
memory when:
310

    
311
- live migrating or failing over and instance and the target node
312
  doesn't have enough memory
313
- user requests changing the memory via ``gnt-instance modify
314
  --runtime-memory``
315

    
316
Instance CPU pinning
317
++++++++++++++++++++
318

    
319
In order to control the use of specific CPUs by instance, support for
320
controlling CPU pinning has been added for the Xen, HVM and LXC
321
hypervisors. This is controlled by a new hypervisor parameter
322
``cpu_mask``; details about possible values for this are in the
323
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
324
VCPU-to-CPU mapping) form will work well only when all nodes in your
325
cluster have the same amount of CPUs.
326

    
327
Disk parameters
328
+++++++++++++++
329

    
330
Another area in which Ganeti was not customisable were the parameters
331
used for storage configuration, e.g. how many stripes to use for LVM,
332
DRBD resync configuration, etc.
333

    
334
To improve this area, we've added disks parameters, which are
335
customisable at cluster and node group level, and which allow to
336
specify various parameters for disks (DRBD has the most parameters
337
currently), for example:
338

    
339
- DRBD resync algorithm and parameters (e.g. speed)
340
- the default VG for meta-data volumes for DRBD
341
- number of stripes for LVM (plain disk template)
342
- the RBD pool
343

    
344
These parameters can be modified via ``gnt-cluster modify -D …`` and
345
``gnt-group modify -D …``, and are used at either instance creation (in
346
case of LVM stripes, for example) or at disk “activation” time
347
(e.g. resync speed).
348

    
349
Rados block device support
350
++++++++++++++++++++++++++
351

    
352
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
353
denoted by the ``rbd`` disk template type. This is considered
354
experimental, feedback is welcome. For details on configuring it, see
355
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
356

    
357
Master IP setup
358
+++++++++++++++
359

    
360
The existing master IP functionality works well only in simple setups (a
361
single network shared by all nodes); however, if nodes belong to
362
different networks, then the ``/32`` setup and lack of routing
363
information is not enough.
364

    
365
To allow the master IP to function well in more complex cases, the
366
system was reworked as follows:
367

    
368
- a master IP netmask setting has been added
369
- the master IP activation/turn-down code was moved from the node daemon
370
  to a separate script
371
- whether to run the Ganeti-supplied master IP script or a user-supplied
372
  on is a ``gnt-cluster init`` setting
373

    
374
Details about the location of the standard and custom setup scripts are
375
in the man page :manpage:`gnt-cluster(8)`; for information about the
376
setup script protocol, look at the Ganeti-supplied script.
377

    
378
SPICE support
379
+++++++++++++
380

    
381
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
382
improved.
383

    
384
It is now possible to use TLS-protected connections, and when renewing
385
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
386
it is now possible to specify spice or spice CA certificates. Also, it
387
is possible to configure a password for SPICE sessions via the
388
hypervisor parameter ``spice_password_file``.
389

    
390
There are also new parameters to control the compression and streaming
391
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
392
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
393
for the spice parameters.
394

    
395
Lastly, it is now possible to see the SPICE connection information via
396
``gnt-instance console``.
397

    
398
OVF converter
399
+++++++++++++
400

    
401
A new tool (``tools/ovfconverter``) has been added that supports
402
conversion between Ganeti and the `Open Virtualization Format
403
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
404
from).
405

    
406
This relies on the ``qemu-img`` tool to convert the disk formats, so the
407
actual compatibility with other virtualization solutions depends on it.
408

    
409
Confd daemon changes
410
++++++++++++++++++++
411

    
412
The configuration query daemon (``ganeti-confd``) is now optional, and
413
has been rewritten in Haskell; whether to use the daemon at all, use the
414
Python (default) or the Haskell version is selectable at configure time
415
via the ``--enable-confd`` parameter, which can take one of the
416
``haskell``, ``python`` or ``no`` values. If not used, disabling the
417
daemon will result in a smaller footprint; for larger systems, we
418
welcome feedback on the Haskell version which might become the default
419
in future versions.
420

    
421
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
422
daemon running. The Python version doesn't implement the new call.
423

    
424

    
425
User interface changes
426
~~~~~~~~~~~~~~~~~~~~~~
427

    
428
We have replaced the ``--disks`` option of ``gnt-instance
429
replace-disks`` with a more flexible ``--disk`` option, which allows
430
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
431
disk size and mode can be changed upon recreation (via ``gnt-instance
432
recreate-disks``, which accepts the same ``--disk`` option).
433

    
434
As many people are used to a ``show`` command, we have added that as an
435
alias to ``info`` on all ``gnt-*`` commands.
436

    
437
The ``gnt-instance grow-disk`` command has a new mode in which it can
438
accept the target size of the disk, instead of the delta; this can be
439
more safe since two runs in absolute mode will be idempotent, and
440
sometimes it's also easier to specify the desired size directly.
441

    
442
Also the handling of instances with regard to offline secondaries has
443
been improved. Instance operations should not fail because one of it's
444
secondary nodes is offline, even though it's safe to proceed.
445

    
446
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
447
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
448
minors to instance name.
449

    
450
API changes
451
~~~~~~~~~~~
452

    
453
RAPI coverage has improved, with (for example) new resources for
454
recreate-disks, node power-cycle, etc.
455

    
456
Compatibility
457
~~~~~~~~~~~~~
458

    
459
There is partial support for ``xl`` in the Xen hypervisor; feedback is
460
welcome.
461

    
462
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
463
whether to still support Python 2.4 or move to Python 2.6 as minimum
464
required version.
465

    
466
Support for Fedora has been slightly improved; the provided example
467
init.d script should work better on it and the INSTALL file should
468
document the needed dependencies.
469

    
470
Internal changes
471
~~~~~~~~~~~~~~~~
472

    
473
The deprecated ``QueryLocks`` LUXI request has been removed. Use
474
``Query(what=QR_LOCK, ...)`` instead.
475

    
476
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
477
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
478
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
479
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
480
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
481

    
482
RAPI client: ``CertificateError`` now derives from
483
``GanetiApiError``. This should make it more easy to handle Ganeti
484
errors.
485

    
486
Deprecation warnings due to PyCrypto/paramiko import in
487
``tools/setup-ssh`` have been silenced, as usually they are safe; please
488
make sure to run an up-to-date paramiko version, if you use this tool.
489

    
490
The QA scripts now depend on Python 2.5 or above (the main code base
491
still works with Python 2.4).
492

    
493
The configuration file (``config.data``) is now written without
494
indentation for performance reasons; if you want to edit it, it can be
495
re-formatted via ``tools/fmtjson``.
496

    
497
A number of bugs has been fixed in the cluster merge tool.
498

    
499
``x509`` certification verification (used in import-export) has been
500
changed to allow the same clock skew as permitted by the cluster
501
verification. This will remove some rare but hard to diagnose errors in
502
import-export.
503

    
504

    
505
Version 2.6.0 rc4
506
-----------------
507

    
508
*(Released Thu, 19 Jul 2012)*
509

    
510
Very few changes from rc4 to the final release, only bugfixes:
511

    
512
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
513
  instance, fix CDROM booting for KVM instances)
514
- fixed node group modification of node parameters
515
- fixed issue in LUClusterVerifyGroup with multi-group clusters
516
- fixed generation of bash completion to ensure a stable ordering
517
- fixed a few typos
518

    
519

    
520
Version 2.6.0 rc3
521
-----------------
522

    
523
*(Released Fri, 13 Jul 2012)*
524

    
525
Third release candidate for 2.6. The following changes were done from
526
rc3 to rc4:
527

    
528
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
529
- Fixed an inconsistency in the LUXI protocol with the provided
530
  arguments (NOT backwards compatible)
531
- Fixed a bug with node groups ipolicy where ``min`` was greater than
532
  the cluster ``std`` value
533
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
534
  easier instance debugging on nodes (requires ``hconfd`` to work)
535

    
536

    
537
Version 2.6.0 rc2
538
-----------------
539

    
540
*(Released Tue, 03 Jul 2012)*
541

    
542
Second release candidate for 2.6. The following changes were done from
543
rc2 to rc3:
544

    
545
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
546
  master candidates
547
- Fixed a RAPI regression on missing beparams/memory
548
- Fixed redistribution of files on offline nodes
549
- Added possibility to run activate-disks even though secondaries are
550
  offline. With this change it relaxes also the strictness on some other
551
  commands which use activate disks internally:
552
  * ``gnt-instance start|reboot|rename|backup|export``
553
- Made it possible to remove safely an instance if its secondaries are
554
  offline
555
- Made it possible to reinstall even though secondaries are offline
556

    
557

    
558
Version 2.6.0 rc1
559
-----------------
560

    
561
*(Released Mon, 25 Jun 2012)*
562

    
563
First release candidate for 2.6. The following changes were done from
564
rc1 to rc2:
565

    
566
- Fixed bugs with disk parameters and ``rbd`` templates as well as
567
  ``instance_os_add``
568
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
569
  behaviour. It supports now the modify operation
570
- ``hcheck`` implemented to analyze cluster health and possibility of
571
  improving health by rebalance
572
- ``hbal`` has been improved in dealing with split instances
573

    
574

    
575
Version 2.6.0 beta2
576
-------------------
577

    
578
*(Released Mon, 11 Jun 2012)*
579

    
580
Second beta release of 2.6. The following changes were done from beta2
581
to rc1:
582

    
583
- Fixed ``daemon-util`` with non-root user models
584
- Fixed creation of plain instances with ``--no-wait-for-sync``
585
- Fix wrong iv_names when running ``cfgupgrade``
586
- Export more information in RAPI group queries
587
- Fixed bug when changing instance network interfaces
588
- Extended burnin to do NIC changes
589
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
590
- Changed default for DRBD barriers
591
- Fixed DRBD error reporting for syncer rate
592
- Verify the options on disk parameters
593

    
594
And of course various fixes to documentation and improved unittests and
595
QA.
596

    
597

    
598
Version 2.6.0 beta1
599
-------------------
600

    
601
*(Released Wed, 23 May 2012)*
602

    
603
First beta release of 2.6. The following changes were done from beta1 to
604
beta2:
605

    
606
- integrated patch for distributions without ``start-stop-daemon``
607
- adapted example init.d script to work on Fedora
608
- fixed log handling in Haskell daemons
609
- adapted checks in the watcher for pycurl linked against libnss
610
- add partial support for ``xl`` instead of ``xm`` for Xen
611
- fixed a type issue in cluster verification
612
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
613
  clusters)
614

    
615
Plus integrated fixes from the 2.5 branch:
616

    
617
- fixed ``kvm-ifup`` to use ``/bin/bash``
618
- fixed parallel build failures
619
- KVM live migration when using a custom keymap
620

    
621

    
622
Version 2.5.2
623
-------------
624

    
625
*(Released Tue, 24 Jul 2012)*
626

    
627
A small bugfix release, with no new features:
628

    
629
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
630
  different default shell (e.g. Debian, Ubuntu)
631
- fixed KVM startup and live migration with a custom keymap (fixes Issue
632
  243 and Debian bug #650664)
633
- fixed compatibility with KVM versions that don't support multiple boot
634
  devices (fixes Issue 230 and Debian bug #624256)
635

    
636
Additionally, a few fixes were done to the build system (fixed parallel
637
build failures) and to the unittests (fixed race condition in test for
638
FileID functions, and the default enable/disable mode for QA test is now
639
customisable).
640

    
641

    
642
Version 2.5.1
643
-------------
644

    
645
*(Released Fri, 11 May 2012)*
646

    
647
A small bugfix release.
648

    
649
The main issues solved are on the topic of compatibility with newer LVM
650
releases:
651

    
652
- fixed parsing of ``lv_attr`` field
653
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
654
  the ``--force`` flag is needed
655

    
656
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
657
to accept kernel 3.x too (was hardcoded to 2.6.*).
658

    
659
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
660
of hook results and that also made display of other errors suboptimal
661
was fixed; the code behaves now like 2.4 and earlier.
662

    
663
Another change in 2.5, the cleanup of the OS scripts environment, is too
664
aggressive: it removed even the ``PATH`` variable, which requires the OS
665
scripts to *always* need to export it. Since this is a bit too strict,
666
we now export a minimal PATH, the same that we export for hooks.
667

    
668
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
669
integrated into this release.
670

    
671
Finally, a few other miscellaneous changes were done (no new features,
672
just small improvements):
673

    
674
- Fix ``gnt-group --help`` display
675
- Fix hardcoded Xen kernel path
676
- Fix grow-disk handling of invalid units
677
- Update synopsis for ``gnt-cluster repair-disk-sizes``
678
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
679

    
680

    
681
Version 2.5.0
682
-------------
683

    
684
*(Released Thu, 12 Apr 2012)*
685

    
686
Incompatible/important changes and bugfixes
687
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
688

    
689
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
690
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
691
  to match the underlying LUXI interface.
692
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
693
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
694
  not maintain backwards-compatibility as the underlying operation
695
  changed in an incompatible way. The RAPI client can talk to old
696
  servers, but it needs to be told so as the return value changed.
697
- When creating file-based instances via RAPI, the ``file_driver``
698
  parameter no longer defaults to ``loop`` and must be specified.
699
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
700
  ``link`` instead.
701
- Support for the undocumented and deprecated RAPI instance creation
702
  request format version 0 has been dropped. Use version 1, supported
703
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
704
- Pyparsing 1.4.6 or above is required, see :doc:`installation
705
  documentation <install>`.
706
- The "cluster-verify" hooks are now executed per group by the
707
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
708
  if you just run ``gnt-cluster verify``, which generates one opcode per
709
  group.
710
- The environment as passed to the OS scripts is cleared, and thus no
711
  environment variables defined in the node daemon's environment will be
712
  inherited by the scripts.
713
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
714
  deprecated.
715
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
716
  support operations involving multiple node groups.
717
- Offline nodes are ignored when failing over an instance.
718
- Support for KVM version 1.0, which changed the version reporting format
719
  from 3 to 2 digits.
720
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
721
  removal.
722
- ``Makefile`` is now compatible with Automake 1.11.2
723
- Includes all bugfixes made in the 2.4 series
724

    
725
New features
726
~~~~~~~~~~~~
727

    
728
- The ganeti-htools project has been merged into the ganeti-core source
729
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
730
- Implemented support for :doc:`shared storage <design-shared-storage>`.
731
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
732
  GPT-style partition tables (requires `parted
733
  <http://www.gnu.org/s/parted/>`_).
734
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
735
- Allowed adding tags on instance creation.
736
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
737
- Allow instances to be started in a paused state, enabling the user to
738
  see the complete console output on boot using the console.
739
- Added new hypervisor flag to control default reboot behaviour
740
  (``reboot_behavior``).
741
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
742
- Improved out-of-band management support:
743

    
744
  - Added ``gnt-node health`` command reporting the health status of
745
    nodes.
746
  - Added ``gnt-node power`` command to manage power status of nodes.
747
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
748

    
749
- Instance migration can fall back to failover if instance is not
750
  running.
751
- Filters can be used when listing nodes, instances, groups and locks;
752
  see :manpage:`ganeti(7)` manpage.
753
- Added post-execution status as variables to :doc:`hooks <hooks>`
754
  environment.
755
- Instance tags are exported/imported together with the instance.
756
- When given an explicit job ID, ``gnt-job info`` will work for archived
757
  jobs.
758
- Jobs can define dependencies on other jobs (not yet supported via
759
  RAPI or command line, but used by internal commands and usable via
760
  LUXI).
761

    
762
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
763
    dependencies.
764

    
765
- Instance failover is now available as a RAPI resource
766
  (``/2/instances/[instance_name]/failover``).
767
- ``gnt-instance info`` defaults to static information if primary node
768
  is offline.
769
- Opcodes have a new ``comment`` attribute.
770
- Added basic SPICE support to KVM hypervisor.
771
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
772

    
773
Node group improvements
774
~~~~~~~~~~~~~~~~~~~~~~~
775

    
776
- ``gnt-cluster verify`` has been modified to check groups separately,
777
  thereby improving performance.
778
- Node group support has been added to ``gnt-cluster verify-disks``,
779
  which now operates per node group.
780
- Watcher has been changed to work better with node groups.
781

    
782
  - One process and state file per node group.
783
  - Slow watcher in one group doesn't block other group's watcher.
784

    
785
- Added new command, ``gnt-group evacuate``, to move all instances in a
786
  node group to other groups.
787
- Added ``gnt-instance change-group`` to move an instance to another
788
  node group.
789
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
790
  per-group operations.
791
- Node groups can be tagged.
792
- Some operations switch from an exclusive to a shared lock as soon as
793
  possible.
794
- Instance's primary and secondary nodes' groups are now available as
795
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
796
  and ``snodes.group.uuid``).
797

    
798
Misc
799
~~~~
800

    
801
- Numerous updates to documentation and manpages.
802

    
803
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
804
    descriptions.
805
  - Some opcode/job results are now also documented, see :doc:`RAPI
806
    <rapi>`.
807

    
808
- A lockset's internal lock is now also visible in lock monitor.
809
- Log messages from job queue workers now contain information about the
810
  opcode they're processing.
811
- ``gnt-instance console`` no longer requires the instance lock.
812
- A short delay when waiting for job changes reduces the number of LUXI
813
  requests significantly.
814
- DRBD metadata volumes are overwritten with zeros during disk creation.
815
- Out-of-band commands no longer acquire the cluster lock in exclusive
816
  mode.
817
- ``devel/upload`` now uses correct permissions for directories.
818

    
819

    
820
Version 2.5.0 rc6
821
-----------------
822

    
823
*(Released Fri, 23 Mar 2012)*
824

    
825
This was the sixth release candidate of the 2.5 series.
826

    
827

    
828
Version 2.5.0 rc5
829
-----------------
830

    
831
*(Released Mon, 9 Jan 2012)*
832

    
833
This was the fifth release candidate of the 2.5 series.
834

    
835

    
836
Version 2.5.0 rc4
837
-----------------
838

    
839
*(Released Thu, 27 Oct 2011)*
840

    
841
This was the fourth release candidate of the 2.5 series.
842

    
843

    
844
Version 2.5.0 rc3
845
-----------------
846

    
847
*(Released Wed, 26 Oct 2011)*
848

    
849
This was the third release candidate of the 2.5 series.
850

    
851

    
852
Version 2.5.0 rc2
853
-----------------
854

    
855
*(Released Tue, 18 Oct 2011)*
856

    
857
This was the second release candidate of the 2.5 series.
858

    
859

    
860
Version 2.5.0 rc1
861
-----------------
862

    
863
*(Released Tue, 4 Oct 2011)*
864

    
865
This was the first release candidate of the 2.5 series.
866

    
867

    
868
Version 2.5.0 beta3
869
-------------------
870

    
871
*(Released Wed, 31 Aug 2011)*
872

    
873
This was the third beta release of the 2.5 series.
874

    
875

    
876
Version 2.5.0 beta2
877
-------------------
878

    
879
*(Released Mon, 22 Aug 2011)*
880

    
881
This was the second beta release of the 2.5 series.
882

    
883

    
884
Version 2.5.0 beta1
885
-------------------
886

    
887
*(Released Fri, 12 Aug 2011)*
888

    
889
This was the first beta release of the 2.5 series.
890

    
891

    
892
Version 2.4.5
893
-------------
894

    
895
*(Released Thu, 27 Oct 2011)*
896

    
897
- Fixed bug when parsing command line parameter values ending in
898
  backslash
899
- Fixed assertion error after unclean master shutdown
900
- Disable HTTP client pool for RPC, significantly reducing memory usage
901
  of master daemon
902
- Fixed queue archive creation with wrong permissions
903

    
904

    
905
Version 2.4.4
906
-------------
907

    
908
*(Released Tue, 23 Aug 2011)*
909

    
910
Small bug-fixes:
911

    
912
- Fixed documentation for importing with ``--src-dir`` option
913
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
914
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
915

    
916

    
917
Version 2.4.3
918
-------------
919

    
920
*(Released Fri, 5 Aug 2011)*
921

    
922
Many bug-fixes and a few small features:
923

    
924
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
925
  issues when you tried to add an instance with two MAC addresses in one
926
  request
927
- KVM: fixed per-instance stored UID value
928
- KVM: configure bridged NICs at migration start
929
- KVM: Fix a bug where instance will not start with never KVM versions
930
  (>= 0.14)
931
- Added OS search path to ``gnt-cluster info``
932
- Fixed an issue with ``file_storage_dir`` where you were forced to
933
  provide an absolute path, but the documentation states it is a
934
  relative path, the documentation was right
935
- Added a new parameter to instance stop/start called ``--no-remember``
936
  that will make the state change to not be remembered
937
- Implemented ``no_remember`` at RAPI level
938
- Improved the documentation
939
- Node evacuation: don't call IAllocator if node is already empty
940
- Fixed bug in DRBD8 replace disks on current nodes
941
- Fixed bug in recreate-disks for DRBD instances
942
- Moved assertion checking locks in ``gnt-instance replace-disks``
943
  causing it to abort with not owning the right locks for some situation
944
- Job queue: Fixed potential race condition when cancelling queued jobs
945
- Fixed off-by-one bug in job serial generation
946
- ``gnt-node volumes``: Fix instance names
947
- Fixed aliases in bash completion
948
- Fixed a bug in reopening log files after being sent a SIGHUP
949
- Added a flag to burnin to allow specifying VCPU count
950
- Bugfixes to non-root Ganeti configuration
951

    
952

    
953
Version 2.4.2
954
-------------
955

    
956
*(Released Thu, 12 May 2011)*
957

    
958
Many bug-fixes and a few new small features:
959

    
960
- Fixed a bug related to log opening failures
961
- Fixed a bug in instance listing with orphan instances
962
- Fixed a bug which prevented resetting the cluster-level node parameter
963
  ``oob_program`` to the default
964
- Many fixes related to the ``cluster-merge`` tool
965
- Fixed a race condition in the lock monitor, which caused failures
966
  during (at least) creation of many instances in parallel
967
- Improved output for gnt-job info
968
- Removed the quiet flag on some ssh calls which prevented debugging
969
  failures
970
- Improved the N+1 failure messages in cluster verify by actually
971
  showing the memory values (needed and available)
972
- Increased lock attempt timeouts so that when executing long operations
973
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
974
  too early and thus prevent the use of the 'fair' mechanism
975
- Changed instance query data (``gnt-instance info``) to not acquire
976
  locks unless needed, thus allowing its use on locked instance if only
977
  static information is asked for
978
- Improved behaviour with filesystems that do not support rename on an
979
  opened file
980
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
981
  kept locks on all nodes during the wipe, which is unneeded
982
- Fixed ``gnt-watcher`` handling of errors during hooks execution
983
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
984
  10GiB) which caused the wipe to fail right at the end in some cases
985
- Fixed master IP activation when doing master failover with no-voting
986
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
987
  the master node itself
988
- Fixed potential data-loss in under disk full conditions, where Ganeti
989
  wouldn't check correctly the return code and would consider
990
  partially-written files 'correct'
991
- Fixed bug related to multiple VGs and DRBD disk replacing
992
- Added new disk parameter ``metavg`` that allows placement of the meta
993
  device for DRBD in a different volume group
994
- Fixed error handling in the node daemon when the system libc doesn't
995
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
996
- Fixed lock release during replace-disks, which kept cluster-wide locks
997
  when doing disk replaces with an iallocator script
998
- Added check for missing bridges in cluster verify
999
- Handle EPIPE errors while writing to the terminal better, so that
1000
  piping the output to e.g. ``less`` doesn't cause a backtrace
1001
- Fixed rare case where a ^C during Luxi calls could have been
1002
  interpreted as server errors, instead of simply terminating
1003
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
1004
  assign-nodes``)
1005
- Added a few more parameters to the KVM hypervisor, allowing a second
1006
  CDROM, custom disk type for CDROMs and a floppy image
1007
- Removed redundant message in instance rename when the name is given
1008
  already as a FQDN
1009
- Added option to ``gnt-instance recreate-disks`` to allow creating the
1010
  disks on new nodes, allowing recreation when the original instance
1011
  nodes are completely gone
1012
- Added option when converting disk templates to DRBD to skip waiting
1013
  for the resync, in order to make the instance available sooner
1014
- Added two new variables to the OS scripts environment (containing the
1015
  instance's nodes)
1016
- Made the root_path and optional parameter for the xen-pvm hypervisor,
1017
  to allow use of ``pvgrub`` as bootloader
1018
- Changed the instance memory modifications to only check out-of-memory
1019
  conditions on memory increases, and turned the secondary node warnings
1020
  into errors (they can still be overridden via ``--force``)
1021
- Fixed the handling of a corner case when the Python installation gets
1022
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
1023
  to execute a command that doesn't exist
1024
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
1025
  node of the instance returned failures during instance shutdown; this
1026
  adds the option ``--ignore-consistency`` to gnt-instance move
1027

    
1028
And as usual, various improvements to the error messages, documentation
1029
and man pages.
1030

    
1031

    
1032
Version 2.4.1
1033
-------------
1034

    
1035
*(Released Wed, 09 Mar 2011)*
1036

    
1037
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
1038
the RAPI users file if run twice (even with ``--dry-run``).
1039

    
1040
The release fixes that bug (nothing else changed).
1041

    
1042

    
1043
Version 2.4.0
1044
-------------
1045

    
1046
*(Released Mon, 07 Mar 2011)*
1047

    
1048
Final 2.4.0 release. Just a few small fixes:
1049

    
1050
- Fixed RAPI node evacuate
1051
- Fixed the kvm-ifup script
1052
- Fixed internal error handling for special job cases
1053
- Updated man page to specify the escaping feature for options
1054

    
1055

    
1056
Version 2.4.0 rc3
1057
-----------------
1058

    
1059
*(Released Mon, 28 Feb 2011)*
1060

    
1061
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1062
that this feature wiped the disks of the wrong instance, leading to loss
1063
of data.
1064

    
1065
Other changes:
1066

    
1067
- Fixed title of query field containing instance name
1068
- Expanded the glossary in the documentation
1069
- Fixed one unittest (internal issue)
1070

    
1071

    
1072
Version 2.4.0 rc2
1073
-----------------
1074

    
1075
*(Released Mon, 21 Feb 2011)*
1076

    
1077
A number of bug fixes plus just a couple functionality changes.
1078

    
1079
On the user-visible side, the ``gnt-* list`` command output has changed
1080
with respect to "special" field states. The current rc1 style of display
1081
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1082
the default output mode special fields states are displayed as follows:
1083

    
1084
- Offline resource: ``*``
1085
- Unavailable/not applicable: ``-``
1086
- Data missing (RPC failure): ``?``
1087
- Unknown field: ``??``
1088

    
1089
Another user-visible change is the addition of ``--force-join`` to
1090
``gnt-node add``.
1091

    
1092
As for bug fixes:
1093

    
1094
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
1095
- Fixed regression in RAPI/instance reinstall where all parameters were
1096
  required (instead of optional)
1097
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1098
- Fixed iallocator usage (offline nodes were not considered offline)
1099
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1100
- Fixed hypervisor and OS parameter validation with respect to
1101
  non-vm_capable nodes
1102
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1103
  cosmetic)
1104
- Fixed ``tools/listrunner`` with respect to agent-based usage
1105

    
1106

    
1107
Version 2.4.0 rc1
1108
-----------------
1109

    
1110
*(Released Fri,  4 Feb 2011)*
1111

    
1112
Many changes and fixes since the beta1 release. While there were some
1113
internal changes, the code has been mostly stabilised for the RC
1114
release.
1115

    
1116
Note: the dumb allocator was removed in this release, as it was not kept
1117
up-to-date with the IAllocator protocol changes. It is recommended to
1118
use the ``hail`` command from the ganeti-htools package.
1119

    
1120
Note: the 2.4 and up versions of Ganeti are not compatible with the
1121
0.2.x branch of ganeti-htools. You need to upgrade to
1122
ganeti-htools-0.3.0 (or later).
1123

    
1124
Regressions fixed from 2.3
1125
~~~~~~~~~~~~~~~~~~~~~~~~~~
1126

    
1127
- Fixed the ``gnt-cluster verify-disks`` command
1128
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1129
  serially on nodes)
1130
- Fixed disk adoption breakage
1131
- Fixed wrong headers in instance listing for field aliases
1132

    
1133
Other bugs fixed
1134
~~~~~~~~~~~~~~~~
1135

    
1136
- Fixed corner case in KVM handling of NICs
1137
- Fixed many cases of wrong handling of non-vm_capable nodes
1138
- Fixed a bug where a missing instance symlink was not possible to
1139
  recreate with any ``gnt-*`` command (now ``gnt-instance
1140
  activate-disks`` does it)
1141
- Fixed the volume group name as reported by ``gnt-cluster
1142
  verify-disks``
1143
- Increased timeouts for the import-export code, hopefully leading to
1144
  fewer aborts due network or instance timeouts
1145
- Fixed bug in ``gnt-node list-storage``
1146
- Fixed bug where not all daemons were started on cluster
1147
  initialisation, but only at the first watcher run
1148
- Fixed many bugs in the OOB implementation
1149
- Fixed watcher behaviour in presence of instances with offline
1150
  secondaries
1151
- Fixed instance list output for instances running on the wrong node
1152
- a few fixes to the cluster-merge tool, but it still cannot merge
1153
  multi-node groups (currently it is not recommended to use this tool)
1154

    
1155

    
1156
Improvements
1157
~~~~~~~~~~~~
1158

    
1159
- Improved network configuration for the KVM hypervisor
1160
- Added e1000 as a supported NIC for Xen-HVM
1161
- Improved the lvmstrap tool to also be able to use partitions, as
1162
  opposed to full disks
1163
- Improved speed of disk wiping (the cluster parameter
1164
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1165
  of instance creations
1166
- Added documentation for the OS parameters
1167
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1168
  hypervisor is not responding
1169
- Added display of blacklisted and hidden OS information in
1170
  ``gnt-cluster info``
1171
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1172
  NIC and node parameters, which might create problems with currently
1173
  invalid (but undetected) configuration files, but prevents validation
1174
  failures when unrelated parameters are modified
1175
- Changed cluster initialisation to wait for the master daemon to become
1176
  available
1177
- Expanded the RAPI interface:
1178

    
1179
  - Added config redistribution resource
1180
  - Added activation/deactivation of instance disks
1181
  - Added export of console information
1182

    
1183
- Implemented log file reopening on SIGHUP, which allows using
1184
  logrotate(8) for the Ganeti log files
1185
- Added a basic OOB helper script as an example
1186

    
1187

    
1188
Version 2.4.0 beta1
1189
-------------------
1190

    
1191
*(Released Fri, 14 Jan 2011)*
1192

    
1193
User-visible
1194
~~~~~~~~~~~~
1195

    
1196
- Fixed timezone issues when formatting timestamps
1197
- Added support for node groups, available via ``gnt-group`` and other
1198
  commands
1199
- Added out-of-band framework and management, see :doc:`design
1200
  document <design-oob>`
1201
- Removed support for roman numbers from ``gnt-node list`` and
1202
  ``gnt-instance list``.
1203
- Allowed modification of master network interface via ``gnt-cluster
1204
  modify --master-netdev``
1205
- Accept offline secondaries while shutting down instance disks
1206
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1207
- Added support for multiple LVM volume groups
1208
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1209
  requested
1210
- Added commands to list available fields:
1211

    
1212
  - ``gnt-node list-fields``
1213
  - ``gnt-group list-fields``
1214
  - ``gnt-instance list-fields``
1215

    
1216
- Updated documentation and man pages
1217

    
1218
Integration
1219
~~~~~~~~~~~
1220

    
1221
- Moved ``rapi_users`` file into separate directory, now named
1222
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1223
  symlink
1224
- Added new tool for running commands on many machines,
1225
  ``tools/ganeti-listrunner``
1226
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1227
  improving the ``gnt-instance console`` output
1228
- Allowed customisation of disk index separator at ``configure`` time
1229
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1230
- Added support for non-partitioned md disks in ``lvmstrap``
1231
- Added script to gracefully power off KVM instances
1232
- Split ``utils`` module into smaller parts
1233
- Changed query operations to return more detailed information, e.g.
1234
  whether an information is unavailable due to an offline node. To use
1235
  this new functionality, the LUXI call ``Query`` must be used. Field
1236
  information is now stored by the master daemon and can be retrieved
1237
  using ``QueryFields``. Instances, nodes and groups can also be queried
1238
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1239
  exposed via RAPI). The following commands make use of this
1240
  infrastructure change:
1241

    
1242
  - ``gnt-group list``
1243
  - ``gnt-group list-fields``
1244
  - ``gnt-node list``
1245
  - ``gnt-node list-fields``
1246
  - ``gnt-instance list``
1247
  - ``gnt-instance list-fields``
1248
  - ``gnt-debug locks``
1249

    
1250
Remote API
1251
~~~~~~~~~~
1252

    
1253
- New RAPI resources (see :doc:`rapi`):
1254

    
1255
  - ``/2/modify``
1256
  - ``/2/groups``
1257
  - ``/2/groups/[group_name]``
1258
  - ``/2/groups/[group_name]/assign-nodes``
1259
  - ``/2/groups/[group_name]/modify``
1260
  - ``/2/groups/[group_name]/rename``
1261
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1262

    
1263
- RAPI changes:
1264

    
1265
  - Implemented ``no_install`` for instance creation
1266
  - Implemented OS parameters for instance reinstallation, allowing
1267
    use of special settings on reinstallation (e.g. for preserving data)
1268

    
1269
Misc
1270
~~~~
1271

    
1272
- Added IPv6 support in import/export
1273
- Pause DRBD synchronization while wiping disks on instance creation
1274
- Updated unittests and QA scripts
1275
- Improved network parameters passed to KVM
1276
- Converted man pages from docbook to reStructuredText
1277

    
1278

    
1279
Version 2.3.1
1280
-------------
1281

    
1282
*(Released Mon, 20 Dec 2010)*
1283

    
1284
Released version 2.3.1~rc1 without any changes.
1285

    
1286

    
1287
Version 2.3.1 rc1
1288
-----------------
1289

    
1290
*(Released Wed, 1 Dec 2010)*
1291

    
1292
- impexpd: Disable OpenSSL compression in socat if possible (backport
1293
  from master, commit e90739d625b, see :doc:`installation guide
1294
  <install-quick>` for details)
1295
- Changed unittest coverage report to exclude test scripts
1296
- Added script to check version format
1297

    
1298

    
1299
Version 2.3.0
1300
-------------
1301

    
1302
*(Released Wed, 1 Dec 2010)*
1303

    
1304
Released version 2.3.0~rc1 without any changes.
1305

    
1306

    
1307
Version 2.3.0 rc1
1308
-----------------
1309

    
1310
*(Released Fri, 19 Nov 2010)*
1311

    
1312
A number of bugfixes and documentation updates:
1313

    
1314
- Update ganeti-os-interface documentation
1315
- Fixed a bug related to duplicate MACs or similar items which should be
1316
  unique
1317
- Fix breakage in OS state modify
1318
- Reinstall instance: disallow offline secondaries (fixes bug related to
1319
  OS changing but reinstall failing)
1320
- plus all the other fixes between 2.2.1 and 2.2.2
1321

    
1322

    
1323
Version 2.3.0 rc0
1324
-----------------
1325

    
1326
*(Released Tue, 2 Nov 2010)*
1327

    
1328
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1329
- Fixed master failover race with watcher
1330
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1331
  configuration
1332
- Accept previously stopped instance for export with instance removal
1333
- Simplify and extend the environment variables for instance OS scripts
1334
- Added new node flags, ``master_capable`` and ``vm_capable``
1335
- Added optional instance disk wiping prior during allocation. This is a
1336
  cluster-wide option and can be set/modified using
1337
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1338
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1339
  :doc:`install-quick`
1340
- Added a new watcher option (``--ignore-pause``)
1341
- Added option to ignore offline node on instance start/stop
1342
  (``--ignore-offline``)
1343
- Allow overriding OS parameters with ``gnt-instance reinstall``
1344
- Added ability to change node's secondary IP address using ``gnt-node
1345
  modify``
1346
- Implemented privilege separation for all daemons except
1347
  ``ganeti-noded``, see ``configure`` options
1348
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1349
  verify``
1350
- Implemented job priorities (see ``ganeti(7)`` manpage)
1351
- Ignore failures while shutting down instances during failover from
1352
  offline node
1353
- Exit daemon's bootstrap process only once daemon is ready
1354
- Export more information via ``LUInstanceQuery``/remote API
1355
- Improved documentation, QA and unittests
1356
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1357
  restart if the file was created or changed
1358
- Added LUXI protocol version sent with each request and response,
1359
  allowing detection of server/client mismatches
1360
- Moved the Python scripts among gnt-* and ganeti-* into modules
1361
- Moved all code related to setting up SSH to an external script,
1362
  ``setup-ssh``
1363
- Infrastructure changes for node group support in future versions
1364

    
1365

    
1366
Version 2.2.2
1367
-------------
1368

    
1369
*(Released Fri, 19 Nov 2010)*
1370

    
1371
A few small bugs fixed, and some improvements to the build system:
1372

    
1373
- Fix documentation regarding conversion to drbd
1374
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1375
  -B``)
1376
- Fix error handling in node modify with multiple changes
1377
- Allow remote imports without checked names
1378

    
1379

    
1380
Version 2.2.1
1381
-------------
1382

    
1383
*(Released Tue, 19 Oct 2010)*
1384

    
1385
- Disable SSL session ID cache in RPC client
1386

    
1387

    
1388
Version 2.2.1 rc1
1389
-----------------
1390

    
1391
*(Released Thu, 14 Oct 2010)*
1392

    
1393
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1394
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1395
  with GnuTLS
1396
- Fix problems with interaction between Curl and Python's HTTP server,
1397
  resulting in increased speed in many RPC calls
1398
- Improve our release script to prevent breakage with older aclocal and
1399
  Python 2.6
1400

    
1401

    
1402
Version 2.2.1 rc0
1403
-----------------
1404

    
1405
*(Released Thu, 7 Oct 2010)*
1406

    
1407
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1408
  value retrieved from master
1409
- Added support for blacklisted or hidden OS definitions
1410
- Added simple lock monitor (accessible via (``gnt-debug locks``)
1411
- Added support for -mem-path in KVM hypervisor abstraction layer
1412
- Allow overriding instance parameters in tool for inter-cluster
1413
  instance moves (``tools/move-instance``)
1414
- Improved opcode summaries (e.g. in ``gnt-job list``)
1415
- Improve consistency of OS listing by sorting it
1416
- Documentation updates
1417

    
1418

    
1419
Version 2.2.0.1
1420
---------------
1421

    
1422
*(Released Fri, 8 Oct 2010)*
1423

    
1424
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
1425

    
1426

    
1427
Version 2.2.0
1428
-------------
1429

    
1430
*(Released Mon, 4 Oct 2010)*
1431

    
1432
- Fixed regression in ``gnt-instance rename``
1433

    
1434

    
1435
Version 2.2.0 rc2
1436
-----------------
1437

    
1438
*(Released Wed, 22 Sep 2010)*
1439

    
1440
- Fixed OS_VARIANT variable for OS scripts
1441
- Fixed cluster tag operations via RAPI
1442
- Made ``setup-ssh`` exit with non-zero code if an error occurred
1443
- Disabled RAPI CA checks in watcher
1444

    
1445

    
1446
Version 2.2.0 rc1
1447
-----------------
1448

    
1449
*(Released Mon, 23 Aug 2010)*
1450

    
1451
- Support DRBD versions of the format "a.b.c.d"
1452
- Updated manpages
1453
- Re-introduce support for usage from multiple threads in RAPI client
1454
- Instance renames and modify via RAPI
1455
- Work around race condition between processing and archival in job
1456
  queue
1457
- Mark opcodes following failed one as failed, too
1458
- Job field ``lock_status`` was removed due to difficulties making it
1459
  work with the changed job queue in Ganeti 2.2; a better way to monitor
1460
  locks is expected for a later 2.2.x release
1461
- Fixed dry-run behaviour with many commands
1462
- Support ``ssh-agent`` again when adding nodes
1463
- Many additional bugfixes
1464

    
1465

    
1466
Version 2.2.0 rc0
1467
-----------------
1468

    
1469
*(Released Fri, 30 Jul 2010)*
1470

    
1471
Important change: the internal RPC mechanism between Ganeti nodes has
1472
changed from using a home-grown http library (based on the Python base
1473
libraries) to use the PycURL library. This requires that PycURL is
1474
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
1475
against GnuTLS by default. cURL's support for GnuTLS had known issues
1476
before cURL 7.21.0 and we recommend using the latest cURL release or
1477
linking against OpenSSL. Most other distributions already link PycURL
1478
and cURL against OpenSSL. The command::
1479

    
1480
  python -c 'import pycurl; print pycurl.version'
1481

    
1482
can be used to determine the libraries PycURL and cURL are linked
1483
against.
1484

    
1485
Other significant changes:
1486

    
1487
- Rewrote much of the internals of the job queue, in order to achieve
1488
  better parallelism; this decouples job query operations from the job
1489
  processing, and it should allow much nicer behaviour of the master
1490
  daemon under load, and it also has uncovered some long-standing bugs
1491
  related to the job serialisation (now fixed)
1492
- Added a default iallocator setting to the cluster parameters,
1493
  eliminating the need to always pass nodes or an iallocator for
1494
  operations that require selection of new node(s)
1495
- Added experimental support for the LXC virtualization method
1496
- Added support for OS parameters, which allows the installation of
1497
  instances to pass parameter to OS scripts in order to customise the
1498
  instance
1499
- Added a hypervisor parameter controlling the migration type (live or
1500
  non-live), since hypervisors have various levels of reliability; this
1501
  has renamed the 'live' parameter to 'mode'
1502
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
1503
  logical volumes, meaning that cluster verify will ignore them and not
1504
  flag their presence as errors
1505
- The watcher will now reset the error count for failed instances after
1506
  8 hours, thus allowing self-healing if the problem that caused the
1507
  instances to be down/fail to start has cleared in the meantime
1508
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
1509
  check for, and warn, if the drbd module parameter ``usermode_helper``
1510
  is not consistent with the cluster-wide setting; this is needed to
1511
  make diagnose easier of failed drbd creations
1512
- Started adding base IPv6 support, but this is not yet
1513
  enabled/available for use
1514
- Rename operations (cluster, instance) will now return the new name,
1515
  which is especially useful if a short name was passed in
1516
- Added support for instance migration in RAPI
1517
- Added a tool to pre-configure nodes for the SSH setup, before joining
1518
  them to the cluster; this will allow in the future a simplified model
1519
  for node joining (but not yet fully enabled in 2.2); this needs the
1520
  paramiko python library
1521
- Fixed handling of name-resolving errors
1522
- Fixed consistency of job results on the error path
1523
- Fixed master-failover race condition when executed multiple times in
1524
  sequence
1525
- Fixed many bugs related to the job queue (mostly introduced during the
1526
  2.2 development cycle, so not all are impacting 2.1)
1527
- Fixed instance migration with missing disk symlinks
1528
- Fixed handling of unknown jobs in ``gnt-job archive``
1529
- And many other small fixes/improvements
1530

    
1531
Internal changes:
1532

    
1533
- Enhanced both the unittest and the QA coverage
1534
- Switched the opcode validation to a generic model, and extended the
1535
  validation to all opcode parameters
1536
- Changed more parts of the code that write shell scripts to use the
1537
  same class for this
1538
- Switched the master daemon to use the asyncore library for the Luxi
1539
  server endpoint
1540

    
1541

    
1542
Version 2.2.0 beta0
1543
-------------------
1544

    
1545
*(Released Thu, 17 Jun 2010)*
1546

    
1547
- Added tool (``move-instance``) and infrastructure to move instances
1548
  between separate clusters (see :doc:`separate documentation
1549
  <move-instance>` and :doc:`design document <design-2.2>`)
1550
- Added per-request RPC timeout
1551
- RAPI now requires a Content-Type header for requests with a body (e.g.
1552
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
1553
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
1554
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
1555
  reachable
1556
- Implemented initial support for running Ganeti daemons as separate
1557
  users, see configure-time flags ``--with-user-prefix`` and
1558
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
1559
  time)
1560
- Instances can be removed after export (``gnt-backup export
1561
  --remove-instance``)
1562
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
1563
  key (instead of 1024 bit)
1564
- Added new cluster configuration file for cluster domain secret
1565
- Import/export now use SSL instead of SSH
1566
- Added support for showing estimated time when exporting an instance,
1567
  see the ``ganeti-os-interface(7)`` manpage and look for
1568
  ``EXP_SIZE_FD``
1569

    
1570

    
1571
Version 2.1.8
1572
-------------
1573

    
1574
*(Released Tue, 16 Nov 2010)*
1575

    
1576
Some more bugfixes. Unless critical bugs occur, this will be the last
1577
2.1 release:
1578

    
1579
- Fix case of MAC special-values
1580
- Fix mac checker regex
1581
- backend: Fix typo causing "out of range" error
1582
- Add missing --units in gnt-instance list man page
1583

    
1584

    
1585
Version 2.1.7
1586
-------------
1587

    
1588
*(Released Tue, 24 Aug 2010)*
1589

    
1590
Bugfixes only:
1591
  - Don't ignore secondary node silently on non-mirrored disk templates
1592
    (issue 113)
1593
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
1594
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
1595
  - Properly document the usb_mouse parameter
1596
  - Fix path in ganeti-rapi(8) (issue 116)
1597
  - Adjust error message when the ganeti user's .ssh directory is
1598
    missing
1599
  - Add same-node-check when changing the disk template to drbd
1600

    
1601

    
1602
Version 2.1.6
1603
-------------
1604

    
1605
*(Released Fri, 16 Jul 2010)*
1606

    
1607
Bugfixes only:
1608
  - Add an option to only select some reboot types during qa/burnin.
1609
    (on some hypervisors consequent reboots are not supported)
1610
  - Fix infrequent race condition in master failover. Sometimes the old
1611
    master ip address would be still detected as up for a short time
1612
    after it was removed, causing failover to fail.
1613
  - Decrease mlockall warnings when the ctypes module is missing. On
1614
    Python 2.4 we support running even if no ctypes module is installed,
1615
    but we were too verbose about this issue.
1616
  - Fix building on old distributions, on which man doesn't have a
1617
    --warnings option.
1618
  - Fix RAPI not to ignore the MAC address on instance creation
1619
  - Implement the old instance creation format in the RAPI client.
1620

    
1621

    
1622
Version 2.1.5
1623
-------------
1624

    
1625
*(Released Thu, 01 Jul 2010)*
1626

    
1627
A small bugfix release:
1628
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
1629
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
1630
    a non-existing option
1631
  - Fix instance create: the --force-variant option was ignored
1632
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
1633
  - Fix modify node storage with non-FQDN arguments
1634
  - Fix RAPI client to authenticate under Python 2.6 when used
1635
    for more than 5 requests needing authentication
1636
  - Fix gnt-instance modify -t (storage) giving a wrong error message
1637
    when converting a non-shutdown drbd instance to plain
1638

    
1639

    
1640
Version 2.1.4
1641
-------------
1642

    
1643
*(Released Fri, 18 Jun 2010)*
1644

    
1645
A small bugfix release:
1646

    
1647
  - Fix live migration of KVM instances started with older Ganeti
1648
    versions which had fewer hypervisor parameters
1649
  - Fix gnt-instance grow-disk on down instances
1650
  - Fix an error-reporting bug during instance migration
1651
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
1652
    silently ignoring broken ones
1653
  - Fix an RPC error reporting bug affecting, for example, RAPI client
1654
    users
1655
  - Fix bug triggered by different API version os-es on different nodes
1656
  - Fix a bug in instance startup with custom hvparams: OS level
1657
    parameters would fail to be applied.
1658
  - Fix the RAPI client under Python 2.6 (but more work is needed to
1659
    make it work completely well with OpenSSL)
1660
  - Fix handling of errors when resolving names from DNS
1661

    
1662

    
1663
Version 2.1.3
1664
-------------
1665

    
1666
*(Released Thu, 3 Jun 2010)*
1667

    
1668
A medium sized development cycle. Some new features, and some
1669
fixes/small improvements/cleanups.
1670

    
1671
Significant features
1672
~~~~~~~~~~~~~~~~~~~~
1673

    
1674
The node deamon now tries to mlock itself into memory, unless the
1675
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1676
its logs, and falls back to console logging. This allows emergency
1677
features such as ``gnt-node powercycle`` to work even in the event of a
1678
broken node disk (tested offlining the disk hosting the node's
1679
filesystem and dropping its memory caches; don't try this at home)
1680

    
1681
KVM: add vhost-net acceleration support. It can be tested with a new
1682
enough version of the kernel and of qemu-kvm.
1683

    
1684
KVM: Add instance chrooting feature. If you use privilege dropping for
1685
your VMs you can also now force them to chroot to an empty directory,
1686
before starting the emulated guest.
1687

    
1688
KVM: Add maximum migration bandwith and maximum downtime tweaking
1689
support (requires a new-enough version of qemu-kvm).
1690

    
1691
Cluster verify will now warn if the master node doesn't have the master
1692
ip configured on it.
1693

    
1694
Add a new (incompatible) instance creation request format to RAPI which
1695
supports all parameters (previously only a subset was supported, and it
1696
wasn't possible to extend the old format to accomodate all the new
1697
features. The old format is still supported, and a client can check for
1698
this feature, before using it, by checking for its presence in the
1699
``features`` RAPI resource.
1700

    
1701
Now with ancient latin support. Try it passing the ``--roman`` option to
1702
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1703
(requires the python-roman module to be installed, in order to work).
1704

    
1705
Other changes
1706
~~~~~~~~~~~~~
1707

    
1708
As usual many internal code refactorings, documentation updates, and
1709
such. Among others:
1710

    
1711
  - Lots of improvements and cleanups to the experimental Remote API
1712
    (RAPI) client library.
1713
  - A new unit test suite for the core daemon libraries.
1714
  - A fix to creating missing directories makes sure the umask is not
1715
    applied anymore. This enforces the same directory permissions
1716
    everywhere.
1717
  - Better handling terminating daemons with ctrl+c (used when running
1718
    them in debugging mode).
1719
  - Fix a race condition in live migrating a KVM instance, when stat()
1720
    on the old proc status file returned EINVAL, which is an unexpected
1721
    value.
1722
  - Fixed manpage checking with newer man and utf-8 charachters. But now
1723
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1724

    
1725

    
1726
Version 2.1.2.1
1727
---------------
1728

    
1729
*(Released Fri, 7 May 2010)*
1730

    
1731
Fix a bug which prevented untagged KVM instances from starting.
1732

    
1733

    
1734
Version 2.1.2
1735
-------------
1736

    
1737
*(Released Fri, 7 May 2010)*
1738

    
1739
Another release with a long development cycle, during which many
1740
different features were added.
1741

    
1742
Significant features
1743
~~~~~~~~~~~~~~~~~~~~
1744

    
1745
The KVM hypervisor now can run the individual instances as non-root, to
1746
reduce the impact of a VM being hijacked due to bugs in the
1747
hypervisor. It is possible to run all instances as a single (non-root)
1748
user, to manually specify a user for each instance, or to dynamically
1749
allocate a user out of a cluster-wide pool to each instance, with the
1750
guarantee that no two instances will run under the same user ID on any
1751
given node.
1752

    
1753
An experimental RAPI client library, that can be used standalone
1754
(without the other Ganeti libraries), is provided in the source tree as
1755
``lib/rapi/client.py``. Note this client might change its interface in
1756
the future, as we iterate on its capabilities.
1757

    
1758
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1759
replace the cluster's certificates and crypto keys. This might help in
1760
case they have been compromised, or have simply expired.
1761

    
1762
A new disk option for instance creation has been added that allows one
1763
to "adopt" currently existing logical volumes, with data
1764
preservation. This should allow easier migration to Ganeti from
1765
unmanaged (or managed via other software) instances.
1766

    
1767
Another disk improvement is the possibility to convert between redundant
1768
(DRBD) and plain (LVM) disk configuration for an instance. This should
1769
allow better scalability (starting with one node and growing the
1770
cluster, or shrinking a two-node cluster to one node).
1771

    
1772
A new feature that could help with automated node failovers has been
1773
implemented: if a node sees itself as offline (by querying the master
1774
candidates), it will try to shutdown (hard) all instances and any active
1775
DRBD devices. This reduces the risk of duplicate instances if an
1776
external script automatically failovers the instances on such nodes. To
1777
enable this, the cluster parameter ``maintain_node_health`` should be
1778
enabled; in the future this option (per the name) will enable other
1779
automatic maintenance features.
1780

    
1781
Instance export/import now will reuse the original instance
1782
specifications for all parameters; that means exporting an instance,
1783
deleting it and the importing it back should give an almost identical
1784
instance. Note that the default import behaviour has changed from
1785
before, where it created only one NIC; now it recreates the original
1786
number of NICs.
1787

    
1788
Cluster verify has added a few new checks: SSL certificates validity,
1789
/etc/hosts consistency across the cluster, etc.
1790

    
1791
Other changes
1792
~~~~~~~~~~~~~
1793

    
1794
As usual, many internal changes were done, documentation fixes,
1795
etc. Among others:
1796

    
1797
- Fixed cluster initialization with disabled cluster storage (regression
1798
  introduced in 2.1.1)
1799
- File-based storage supports growing the disks
1800
- Fixed behaviour of node role changes
1801
- Fixed cluster verify for some corner cases, plus a general rewrite of
1802
  cluster verify to allow future extension with more checks
1803
- Fixed log spamming by watcher and node daemon (regression introduced
1804
  in 2.1.1)
1805
- Fixed possible validation issues when changing the list of enabled
1806
  hypervisors
1807
- Fixed cleanup of /etc/hosts during node removal
1808
- Fixed RAPI response for invalid methods
1809
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1810
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1811
  from ide disks, etc.)
1812
- Allow OS changes without re-installation (to record a changed OS
1813
  outside of Ganeti, or to allow OS renames)
1814
- Allow instance creation without OS installation (useful for example if
1815
  the OS will be installed manually, or restored from a backup not in
1816
  Ganeti format)
1817
- Implemented option to make cluster ``copyfile`` use the replication
1818
  network
1819
- Added list of enabled hypervisors to ssconf (possibly useful for
1820
  external scripts)
1821
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1822
  1.2 clusters
1823
- A partial form of node re-IP is possible via node readd, which now
1824
  allows changed node primary IP
1825
- Command line utilities now show an informational message if the job is
1826
  waiting for a lock
1827
- The logs of the master daemon now show the PID/UID/GID of the
1828
  connected client
1829

    
1830

    
1831
Version 2.1.1
1832
-------------
1833

    
1834
*(Released Fri, 12 Mar 2010)*
1835

    
1836
During the 2.1.0 long release candidate cycle, a lot of improvements and
1837
changes have accumulated with were released later as 2.1.1.
1838

    
1839
Major changes
1840
~~~~~~~~~~~~~
1841

    
1842
The node evacuate command (``gnt-node evacuate``) was significantly
1843
rewritten, and as such the IAllocator protocol was changed - a new
1844
request type has been added. This unfortunate change during a stable
1845
series is designed to improve performance of node evacuations; on
1846
clusters with more than about five nodes and which are well-balanced,
1847
evacuation should proceed in parallel for all instances of the node
1848
being evacuated. As such, any existing IAllocator scripts need to be
1849
updated, otherwise the above command will fail due to the unknown
1850
request. The provided "dumb" allocator has not been updated; but the
1851
ganeti-htools package supports the new protocol since version 0.2.4.
1852

    
1853
Another important change is increased validation of node and instance
1854
names. This might create problems in special cases, if invalid host
1855
names are being used.
1856

    
1857
Also, a new layer of hypervisor parameters has been added, that sits at
1858
OS level between the cluster defaults and the instance ones. This allows
1859
customisation of virtualization parameters depending on the installed
1860
OS. For example instances with OS 'X' may have a different KVM kernel
1861
(or any other parameter) than the cluster defaults. This is intended to
1862
help managing a multiple OSes on the same cluster, without manual
1863
modification of each instance's parameters.
1864

    
1865
A tool for merging clusters, ``cluster-merge``, has been added in the
1866
tools sub-directory.
1867

    
1868
Bug fixes
1869
~~~~~~~~~
1870

    
1871
- Improved the int/float conversions that should make the code more
1872
  robust in face of errors from the node daemons
1873
- Fixed the remove node code in case of internal configuration errors
1874
- Fixed the node daemon behaviour in face of inconsistent queue
1875
  directory (e.g. read-only file-system where we can't open the files
1876
  read-write, etc.)
1877
- Fixed the behaviour of gnt-node modify for master candidate demotion;
1878
  now it either aborts cleanly or, if given the new "auto_promote"
1879
  parameter, will automatically promote other nodes as needed
1880
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
1881
  completely prevent Ganeti from working
1882
- Fixed bug for instance export when not all disks were successfully
1883
  exported
1884
- Fixed behaviour of node add when the new node is slow in starting up
1885
  the node daemon
1886
- Fixed handling of signals in the LUXI client, which should improve
1887
  behaviour of command-line scripts
1888
- Added checks for invalid node/instance names in the configuration (now
1889
  flagged during cluster verify)
1890
- Fixed watcher behaviour for disk activation errors
1891
- Fixed two potentially endless loops in http library, which led to the
1892
  RAPI daemon hanging and consuming 100% CPU in some cases
1893
- Fixed bug in RAPI daemon related to hashed passwords
1894
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
1895
  instances
1896
- Enhanced compatibility with non-Debian OSes, but not using absolute
1897
  path in some commands and allowing customisation of the ssh
1898
  configuration directory
1899
- Fixed possible future issue with new Python versions by abiding to the
1900
  proper use of ``__slots__`` attribute on classes
1901
- Added checks that should prevent directory traversal attacks
1902
- Many documentation fixes based on feedback from users
1903

    
1904
New features
1905
~~~~~~~~~~~~
1906

    
1907
- Added an "early_release" more for instance replace disks and node
1908
  evacuate, where we release locks earlier and thus allow higher
1909
  parallelism within the cluster
1910
- Added watcher hooks, intended to allow the watcher to restart other
1911
  daemons (e.g. from the ganeti-nbma project), but they can be used of
1912
  course for any other purpose
1913
- Added a compile-time disable for DRBD barriers, to increase
1914
  performance if the administrator trusts the power supply or the
1915
  storage system to not lose writes
1916
- Added the option of using syslog for logging instead of, or in
1917
  addition to, Ganeti's own log files
1918
- Removed boot restriction for paravirtual NICs for KVM, recent versions
1919
  can indeed boot from a paravirtual NIC
1920
- Added a generic debug level for many operations; while this is not
1921
  used widely yet, it allows one to pass the debug value all the way to
1922
  the OS scripts
1923
- Enhanced the hooks environment for instance moves (failovers,
1924
  migrations) where the primary/secondary nodes changed during the
1925
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1926
- Enhanced data validations for many user-supplied values; one important
1927
  item is the restrictions imposed on instance and node names, which
1928
  might reject some (invalid) host names
1929
- Add a configure-time option to disable file-based storage, if it's not
1930
  needed; this allows greater security separation between the master
1931
  node and the other nodes from the point of view of the inter-node RPC
1932
  protocol
1933
- Added user notification in interactive tools if job is waiting in the
1934
  job queue or trying to acquire locks
1935
- Added log messages when a job is waiting for locks
1936
- Added filtering by node tags in instance operations which admit
1937
  multiple instances (start, stop, reboot, reinstall)
1938
- Added a new tool for cluster mergers, ``cluster-merge``
1939
- Parameters from command line which are of the form ``a=b,c=d`` can now
1940
  use backslash escapes to pass in values which contain commas,
1941
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1942
  ``b,c``
1943
- For KVM, the instance name is the first parameter passed to KVM, so
1944
  that it's more visible in the process list
1945

    
1946

    
1947
Version 2.1.0
1948
-------------
1949

    
1950
*(Released Tue, 2 Mar 2010)*
1951

    
1952
Ganeti 2.1 brings many improvements with it. Major changes:
1953

    
1954
- Added infrastructure to ease automated disk repairs
1955
- Added new daemon to export configuration data in a cheaper way than
1956
  using the remote API
1957
- Instance NICs can now be routed instead of being associated with a
1958
  networking bridge
1959
- Improved job locking logic to reduce impact of jobs acquiring multiple
1960
  locks waiting for other long-running jobs
1961

    
1962
In-depth implementation details can be found in the Ganeti 2.1 design
1963
document.
1964

    
1965
Details
1966
~~~~~~~
1967

    
1968
- Added chroot hypervisor
1969
- Added more options to xen-hvm hypervisor (``kernel_path`` and
1970
  ``device_model``)
1971
- Added more options to xen-pvm hypervisor (``use_bootloader``,
1972
  ``bootloader_path`` and ``bootloader_args``)
1973
- Added the ``use_localtime`` option for the xen-hvm and kvm
1974
  hypervisors, and the default value for this has changed to false (in
1975
  2.0 xen-hvm always enabled it)
1976
- Added luxi call to submit multiple jobs in one go
1977
- Added cluster initialization option to not modify ``/etc/hosts``
1978
  file on nodes
1979
- Added network interface parameters
1980
- Added dry run mode to some LUs
1981
- Added RAPI resources:
1982

    
1983
  - ``/2/instances/[instance_name]/info``
1984
  - ``/2/instances/[instance_name]/replace-disks``
1985
  - ``/2/nodes/[node_name]/evacuate``
1986
  - ``/2/nodes/[node_name]/migrate``
1987
  - ``/2/nodes/[node_name]/role``
1988
  - ``/2/nodes/[node_name]/storage``
1989
  - ``/2/nodes/[node_name]/storage/modify``
1990
  - ``/2/nodes/[node_name]/storage/repair``
1991

    
1992
- Added OpCodes to evacuate or migrate all instances on a node
1993
- Added new command to list storage elements on nodes (``gnt-node
1994
  list-storage``) and modify them (``gnt-node modify-storage``)
1995
- Added new ssconf files with master candidate IP address
1996
  (``ssconf_master_candidates_ips``), node primary IP address
1997
  (``ssconf_node_primary_ips``) and node secondary IP address
1998
  (``ssconf_node_secondary_ips``)
1999
- Added ``ganeti-confd`` and a client library to query the Ganeti
2000
  configuration via UDP
2001
- Added ability to run hooks after cluster initialization and before
2002
  cluster destruction
2003
- Added automatic mode for disk replace (``gnt-instance replace-disks
2004
  --auto``)
2005
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
2006
  after catastrophic data-loss
2007
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
2008
  groups
2009
- Added ``gnt-instance move`` command to move instances
2010
- Added ``gnt-cluster watcher`` command to control watcher
2011
- Added ``gnt-node powercycle`` command to powercycle nodes
2012
- Added new job status field ``lock_status``
2013
- Added parseable error codes to cluster verification (``gnt-cluster
2014
  verify --error-codes``) and made output less verbose (use
2015
  ``--verbose`` to restore previous behaviour)
2016
- Added UUIDs to the main config entities (cluster, nodes, instances)
2017
- Added support for OS variants
2018
- Added support for hashed passwords in the Ganeti remote API users file
2019
  (``rapi_users``)
2020
- Added option to specify maximum timeout on instance shutdown
2021
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
2022
- Added new helper script to start and stop Ganeti daemons
2023
  (``daemon-util``), with the intent to reduce the work necessary to
2024
  adjust Ganeti for non-Debian distributions and to start/stop daemons
2025
  from one place
2026
- Added more unittests
2027
- Fixed critical bug in ganeti-masterd startup
2028
- Removed the configure-time ``kvm-migration-port`` parameter, this is
2029
  now customisable at the cluster level for both the KVM and Xen
2030
  hypervisors using the new ``migration_port`` parameter
2031
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
2032
  reinstalling an instance
2033
- Allowed ``@`` in tag names
2034
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
2035
- Many documentation updates
2036
- Distribute hypervisor files on ``gnt-cluster redist-conf``
2037
- ``gnt-instance reinstall`` can now reinstall multiple instances
2038
- Updated many command line parameters
2039
- Introduced new OS API version 15
2040
- No longer support a default hypervisor
2041
- Treat virtual LVs as inexistent
2042
- Improved job locking logic to reduce lock contention
2043
- Match instance and node names case insensitively
2044
- Reimplemented bash completion script to be more complete
2045
- Improved burnin
2046

    
2047

    
2048
Version 2.0.6
2049
-------------
2050

    
2051
*(Released Thu, 4 Feb 2010)*
2052

    
2053
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2054
- Fix a string formatting bug
2055
- Improve safety of the code in some error paths
2056
- Improve data validation in the master of values returned from nodes
2057

    
2058

    
2059
Version 2.0.5
2060
-------------
2061

    
2062
*(Released Thu, 17 Dec 2009)*
2063

    
2064
- Fix security issue due to missing validation of iallocator names; this
2065
  allows local and remote execution of arbitrary executables
2066
- Fix failure of gnt-node list during instance removal
2067
- Ship the RAPI documentation in the archive
2068

    
2069

    
2070
Version 2.0.4
2071
-------------
2072

    
2073
*(Released Wed, 30 Sep 2009)*
2074

    
2075
- Fixed many wrong messages
2076
- Fixed a few bugs related to the locking library
2077
- Fixed MAC checking at instance creation time
2078
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
2079
- Fixed a few issues related to signal handling in both daemons and
2080
  scripts
2081
- Fixed the example startup script provided
2082
- Fixed insserv dependencies in the example startup script (patch from
2083
  Debian)
2084
- Fixed handling of drained nodes in the iallocator framework
2085
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2086
  #528618)
2087
- Fixed error related to invalid job IDs in job polling
2088
- Fixed job/opcode persistence on unclean master shutdown
2089
- Fixed handling of partial job processing after unclean master
2090
  shutdown
2091
- Fixed error reporting from LUs, previously all errors were converted
2092
  into execution errors
2093
- Fixed error reporting from burnin
2094
- Decreased significantly the memory usage of the job queue
2095
- Optimised slightly multi-job submission
2096
- Optimised slightly opcode loading
2097
- Backported the multi-job submit framework from the development
2098
  branch; multi-instance start and stop should be faster
2099
- Added script to clean archived jobs after 21 days; this will reduce
2100
  the size of the queue directory
2101
- Added some extra checks in disk size tracking
2102
- Added an example ethers hook script
2103
- Added a cluster parameter that prevents Ganeti from modifying of
2104
  /etc/hosts
2105
- Added more node information to RAPI responses
2106
- Added a ``gnt-job watch`` command that allows following the ouput of a
2107
  job
2108
- Added a bind-address option to ganeti-rapi
2109
- Added more checks to the configuration verify
2110
- Enhanced the burnin script such that some operations can be retried
2111
  automatically
2112
- Converted instance reinstall to multi-instance model
2113

    
2114

    
2115
Version 2.0.3
2116
-------------
2117

    
2118
*(Released Fri, 7 Aug 2009)*
2119

    
2120
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2121
  to allow using the pre-2.0.2 behaviour in activation, if any existing
2122
  instances have mismatched disk sizes in the configuration
2123
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
2124
  any configuration mismatches for disk sizes
2125
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2126
  failover to work on two-node clusters
2127
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2128
  unusable
2129
- Fixed detection of OS script errors in ``gnt-backup export``
2130
- Fixed exit code of ``gnt-backup export``
2131

    
2132

    
2133
Version 2.0.2
2134
-------------
2135

    
2136
*(Released Fri, 17 Jul 2009)*
2137

    
2138
- Added experimental support for stripped logical volumes; this should
2139
  enhance performance but comes with a higher complexity in the block
2140
  device handling; stripping is only enabled when passing
2141
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2142
  affected even in the non-stripped mode
2143
- Improved resiliency against transient failures at the end of DRBD
2144
  resyncs, and in general of DRBD resync checks
2145
- Fixed a couple of issues with exports and snapshot errors
2146
- Fixed a couple of issues in instance listing
2147
- Added display of the disk size in ``gnt-instance info``
2148
- Fixed checking for valid OSes in instance creation
2149
- Fixed handling of the "vcpus" parameter in instance listing and in
2150
  general of invalid parameters
2151
- Fixed http server library, and thus RAPI, to handle invalid
2152
  username/password combinations correctly; this means that now they
2153
  report unauthorized for queries too, not only for modifications,
2154
  allowing earlier detect of configuration problems
2155
- Added a new "role" node list field, equivalent to the master/master
2156
  candidate/drained/offline flags combinations
2157
- Fixed cluster modify and changes of candidate pool size
2158
- Fixed cluster verify error messages for wrong files on regular nodes
2159
- Fixed a couple of issues with node demotion from master candidate role
2160
- Fixed node readd issues
2161
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2162
- Added a new ``--no-voting`` option for masterfailover to fix failover
2163
  on two-nodes clusters when the former master node is unreachable
2164
- Added instance reinstall over RAPI
2165

    
2166

    
2167
Version 2.0.1
2168
-------------
2169

    
2170
*(Released Tue, 16 Jun 2009)*
2171

    
2172
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2173
  allow re-adding the start in single-user option (regression from 1.2)
2174
- the watcher writes the instance status to a file, to allow monitoring
2175
  to report the instance status (from the master) based on cached
2176
  results of the watcher's queries; while this can get stale if the
2177
  watcher is being locked due to other work on the cluster, this is
2178
  still an improvement
2179
- the watcher now also restarts the node daemon and the rapi daemon if
2180
  they died
2181
- fixed the watcher to handle full and drained queue cases
2182
- hooks export more instance data in the environment, which helps if
2183
  hook scripts need to take action based on the instance's properties
2184
  (no longer need to query back into ganeti)
2185
- instance failovers when the instance is stopped do not check for free
2186
  RAM, so that failing over a stopped instance is possible in low memory
2187
  situations
2188
- rapi uses queries for tags instead of jobs (for less job traffic), and
2189
  for cluster tags it won't talk to masterd at all but read them from
2190
  ssconf
2191
- a couple of error handling fixes in RAPI
2192
- drbd handling: improved the error handling of inconsistent disks after
2193
  resync to reduce the frequency of "there are some degraded disks for
2194
  this instance" messages
2195
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2196
  error handling path called a wrong function name)
2197

    
2198

    
2199
Version 2.0.0
2200
-------------
2201

    
2202
*(Released Wed, 27 May 2009)*
2203

    
2204
- no changes from rc5
2205

    
2206

    
2207
Version 2.0 rc5
2208
---------------
2209

    
2210
*(Released Wed, 20 May 2009)*
2211

    
2212
- fix a couple of bugs (validation, argument checks)
2213
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2214
- some small improvements to RAPI and IAllocator
2215
- make watcher automatically start the master daemon if down
2216

    
2217

    
2218
Version 2.0 rc4
2219
---------------
2220

    
2221
*(Released Mon, 27 Apr 2009)*
2222

    
2223
- change the OS list to not require locks; this helps with big clusters
2224
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2225
  volume group is broken
2226
- ``gnt-instance info``, without any arguments, doesn't run for all
2227
  instances anymore; either pass ``--all`` or pass the desired
2228
  instances; this helps against mistakes on big clusters where listing
2229
  the information for all instances takes a long time
2230
- miscellaneous doc and man pages fixes
2231

    
2232

    
2233
Version 2.0 rc3
2234
---------------
2235

    
2236
*(Released Wed, 8 Apr 2009)*
2237

    
2238
- Change the internal locking model of some ``gnt-node`` commands, in
2239
  order to reduce contention (and blocking of master daemon) when
2240
  batching many creation/reinstall jobs
2241
- Fixes to Xen soft reboot
2242
- No longer build documentation at build time, instead distribute it in
2243
  the archive, in order to reduce the need for the whole docbook/rst
2244
  toolchains
2245

    
2246

    
2247
Version 2.0 rc2
2248
---------------
2249

    
2250
*(Released Fri, 27 Mar 2009)*
2251

    
2252
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2253
- Fix watcher startup sequence, improves the behaviour of busy clusters
2254
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2255
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2256
  bind address and other places
2257
- Some documentation fixes and updates
2258

    
2259

    
2260
Version 2.0 rc1
2261
---------------
2262

    
2263
*(Released Mon, 2 Mar 2009)*
2264

    
2265
- More documentation updates, now all docs should be more-or-less
2266
  up-to-date
2267
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2268
  etc.)
2269
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2270
  and KVM)
2271
- Fix an issue related to $libdir/run/ganeti and cluster creation
2272

    
2273

    
2274
Version 2.0 beta2
2275
-----------------
2276

    
2277
*(Released Thu, 19 Feb 2009)*
2278

    
2279
- Xen PVM and KVM have switched the default value for the instance root
2280
  disk to the first partition on the first drive, instead of the whole
2281
  drive; this means that the OS installation scripts must be changed
2282
  accordingly
2283
- Man pages have been updated
2284
- RAPI has been switched by default to HTTPS, and the exported functions
2285
  should all work correctly
2286
- RAPI v1 has been removed
2287
- Many improvements to the KVM hypervisor
2288
- Block device errors are now better reported
2289
- Many other bugfixes and small improvements
2290

    
2291

    
2292
Version 2.0 beta1
2293
-----------------
2294

    
2295
*(Released Mon, 26 Jan 2009)*
2296

    
2297
- Version 2 is a general rewrite of the code and therefore the
2298
  differences are too many to list, see the design document for 2.0 in
2299
  the ``doc/`` subdirectory for more details
2300
- In this beta version there is not yet a migration path from 1.2 (there
2301
  will be one in the final 2.0 release)
2302
- A few significant changes are:
2303

    
2304
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2305
    various ``gnt-*`` commands are just front-ends to it
2306
  - all the commands are entered into, and executed from a job queue,
2307
    see the ``gnt-job(8)`` manpage
2308
  - the RAPI daemon supports read-write operations, secured by basic
2309
    HTTP authentication on top of HTTPS
2310
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2311
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2312
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2313
  - DRBD devices are using statically allocated minor numbers, which
2314
    will be assigned to existing instances during the migration process
2315
  - there is support for both Xen PVM and Xen HVM instances running on
2316
    the same cluster
2317
  - KVM virtualization is supported too
2318
  - file-based storage has been implemented, which means that it is
2319
    possible to run the cluster without LVM and DRBD storage, for
2320
    example using a shared filesystem exported from shared storage (and
2321
    still have live migration)
2322

    
2323

    
2324
Version 1.2.7
2325
-------------
2326

    
2327
*(Released Tue, 13 Jan 2009)*
2328

    
2329
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2330
- Reuse the old instance mac address by default on instance import, if
2331
  the instance name is the same.
2332
- Handle situations in which the node info rpc returns incomplete
2333
  results (issue 46)
2334
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2335
- Improved version of batcher:
2336

    
2337
  - state file support
2338
  - instance mac address support
2339
  - support for HVM clusters/instances
2340

    
2341
- Add an option to show the number of cpu sockets and nodes in
2342
  ``gnt-node list``
2343
- Support OSes that handle more than one version of the OS api (but do
2344
  not change the current API in any other way)
2345
- Fix ``gnt-node migrate``
2346
- ``gnt-debug`` man page
2347
- Fixes various more typos and small issues
2348
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2349

    
2350

    
2351
Version 1.2.6
2352
-------------
2353

    
2354
*(Released Wed, 24 Sep 2008)*
2355

    
2356
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2357
  type of disk exported to fully virtualized instances.
2358
- provide access to the serial console of HVM instances
2359
- instance auto_balance flag, set by default. If turned off it will
2360
  avoid warnings on cluster verify if there is not enough memory to fail
2361
  over an instance. in the future it will prevent automatically failing
2362
  it over when we will support that.
2363
- batcher tool for instance creation, see ``tools/README.batcher``
2364
- ``gnt-instance reinstall --select-os`` to interactively select a new
2365
  operating system when reinstalling an instance.
2366
- when changing the memory amount on instance modify a check has been
2367
  added that the instance will be able to start. also warnings are
2368
  emitted if the instance will not be able to fail over, if auto_balance
2369
  is true.
2370
- documentation fixes
2371
- sync fields between ``gnt-instance list/modify/add/import``
2372
- fix a race condition in drbd when the sync speed was set after giving
2373
  the device a remote peer.
2374

    
2375

    
2376
Version 1.2.5
2377
-------------
2378

    
2379
*(Released Tue, 22 Jul 2008)*
2380

    
2381
- note: the allowed size and number of tags per object were reduced
2382
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2383
- fixed twisted 8.x compatibility
2384
- fixed ``gnt-instance replace-disks`` with iallocator
2385
- add TCP keepalives on twisted connections to detect restarted nodes
2386
- disk increase support, see ``gnt-instance grow-disk``
2387
- implement bulk node/instance query for RAPI
2388
- add tags in node/instance listing (optional)
2389
- experimental migration (and live migration) support, read the man page
2390
  for ``gnt-instance migrate``
2391
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2392
  has some small improvements in handling its state file
2393

    
2394

    
2395
Version 1.2.4
2396
-------------
2397

    
2398
*(Released Fri, 13 Jun 2008)*
2399

    
2400
- Experimental readonly, REST-based remote API implementation;
2401
  automatically started on master node, TCP port 5080, if enabled by
2402
  ``--enable-rapi`` parameter to configure script.
2403
- Instance allocator support. Add and import instance accept a
2404
  ``--iallocator`` parameter, and call that instance allocator to decide
2405
  which node to use for the instance. The iallocator document describes
2406
  what's expected from an allocator script.
2407
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2408
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2409
  node is lost there is still enough memory to fail over the instances
2410
  that reside on it.
2411
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2412
  ``gnt-cluster verify``, to check for site-specific compliance. All the
2413
  hooks will run, and their output, if any, will be displayed. Any
2414
  failing hook will make the verification return an error value.
2415
- ``gnt-cluster verify`` now checks that its peers are reachable on the
2416
  primary and secondary interfaces
2417
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2418
  that is still declared as part of the cluster and has failed.
2419
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
2420
  specifying output fields, that just adds the chosen fields to the
2421
  default ones.
2422
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
2423
  export from the filesystem.
2424
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2425
  have been added. Using them you can enable/disable acpi and pae
2426
  support, and specify a path for a cd image to be exported to the
2427
  instance. These parameters as the name suggest only work on HVM
2428
  clusters.
2429
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2430
  PAE support will be set to the previously hardcoded values, but the
2431
  (previously hardcoded) path to the CDROM ISO image will be unset and
2432
  if required, needs to be set manually with ``gnt-instance modify``
2433
  after the upgrade.
2434
- The address to which an instance's VNC console is bound is now
2435
  selectable per-instance, rather than being cluster wide. Of course
2436
  this only applies to instances controlled via VNC, so currently just
2437
  applies to HVM clusters.
2438

    
2439

    
2440
Version 1.2.3
2441
-------------
2442

    
2443
*(Released Mon, 18 Feb 2008)*
2444

    
2445
- more tweaks to the disk activation code (especially helpful for DRBD)
2446
- change the default ``gnt-instance list`` output format, now there is
2447
  one combined status field (see the manpage for the exact values this
2448
  field will have)
2449
- some more fixes for the mac export to hooks change
2450
- make Ganeti not break with DRBD 8.2.x (which changed the version
2451
  format in ``/proc/drbd``) (issue 24)
2452
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2453
  template, allowing migration from DRBD0.7+MD to DRBD8
2454

    
2455

    
2456
Version 1.2.2
2457
-------------
2458

    
2459
*(Released Wed, 30 Jan 2008)*
2460

    
2461
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
2462
  support (issue 23)
2463
- add command aliases infrastructure and a few aliases
2464
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
2465
  man pages and the ``--help`` option of ``gnt-node
2466
  list``/``gnt-instance list``
2467
- fix ``gnt-backup list`` with down nodes (issue 21)
2468
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
2469
- fix the dist archive and add a check for including svn/git files in
2470
  the future
2471
- some developer-related changes: improve the burnin and the QA suite,
2472
  add an upload script for testing during development
2473

    
2474

    
2475
Version 1.2.1
2476
-------------
2477

    
2478
*(Released Wed, 16 Jan 2008)*
2479

    
2480
- experimental HVM support, read the install document, section
2481
  "Initializing the cluster"
2482
- allow for the PVM hypervisor per-instance kernel and initrd paths
2483
- add a new command ``gnt-cluster verify-disks`` which uses a new
2484
  algorithm to improve the reconnection of the DRBD pairs if the device
2485
  on the secondary node has gone away
2486
- make logical volume code auto-activate LVs at disk activation time
2487
- slightly improve the speed of activating disks
2488
- allow specification of the MAC address at instance creation time, and
2489
  changing it later via ``gnt-instance modify``
2490
- fix handling of external commands that generate lots of output on
2491
  stderr
2492
- update documentation with regard to minimum version of DRBD8 supported
2493

    
2494

    
2495
Version 1.2.0
2496
-------------
2497

    
2498
*(Released Tue, 4 Dec 2007)*
2499

    
2500
- Log the ``xm create`` output to the node daemon log on failure (to
2501
  help diagnosing the error)
2502
- In debug mode, log all external commands output if failed to the logs
2503
- Change parsing of lvm commands to ignore stderr
2504

    
2505

    
2506
Version 1.2 beta3
2507
-----------------
2508

    
2509
*(Released Wed, 28 Nov 2007)*
2510

    
2511
- Another round of updates to the DRBD 8 code to deal with more failures
2512
  in the replace secondary node operation
2513
- Some more logging of failures in disk operations (lvm, drbd)
2514
- A few documentation updates
2515
- QA updates
2516

    
2517

    
2518
Version 1.2 beta2
2519
-----------------
2520

    
2521
*(Released Tue, 13 Nov 2007)*
2522

    
2523
- Change configuration file format from Python's Pickle to JSON.
2524
  Upgrading is possible using the cfgupgrade utility.
2525
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
2526
  faster replace disks and is more stable (DRBD 8 has many improvements
2527
  compared to DRBD 0.7)
2528
- Added command line tags support (see man pages for ``gnt-instance``,
2529
  ``gnt-node``, ``gnt-cluster``)
2530
- Added instance rename support
2531
- Added multi-instance startup/shutdown
2532
- Added cluster rename support
2533
- Added ``gnt-node evacuate`` to simplify some node operations
2534
- Added instance reboot operation that can speedup reboot as compared to
2535
  stop and start
2536
- Soften the requirement that hostnames are in FQDN format
2537
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
2538
  reboots
2539
- Removed dependency on debian's patched fping that uses the
2540
  non-standard ``-S`` option
2541
- Now the OS definitions are searched for in multiple, configurable
2542
  paths (easier for distros to package)
2543
- Some changes to the hooks infrastructure (especially the new
2544
  post-configuration update hook)
2545
- Other small bugfixes
2546

    
2547
.. vim: set textwidth=72 syntax=rst :
2548
.. Local Variables:
2549
.. mode: rst
2550
.. fill-column: 72
2551
.. End: