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1
News
2
====
3

    
4

    
5
Version 2.7.2
6
-------------
7

    
8
*(unreleased)*
9

    
10
- Change the connected groups format in ``gnt-network info`` output; it
11
  was previously displayed as a raw list by mistake.
12

    
13

    
14
Version 2.7.1
15
-------------
16

    
17
*(Released Thu, 25 Jul 2013)*
18

    
19
- Add logrotate functionality in daemon-util
20
- Add logrotate example file
21
- Add missing fields to network queries over rapi
22
- Fix network object timestamps
23
- Add support for querying network timestamps
24
- Fix a typo in the example crontab
25
- Fix a documentation typo
26

    
27

    
28
Version 2.7.0
29
-------------
30

    
31
*(Released Thu, 04 Jul 2013)*
32

    
33
Incompatible/important changes
34
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
35

    
36
- Instance policies for disk size were documented to be on a per-disk
37
  basis, but hail applied them to the sum of all disks. This has been
38
  fixed.
39
- ``hbal`` will now exit with status 0 if, during job execution over
40
  LUXI, early exit has been requested and all jobs are successful;
41
  before, exit status 1 was used, which cannot be differentiated from
42
  "job error" case
43
- Compatibility with newer versions of rbd has been fixed
44
- ``gnt-instance batch-create`` has been changed to use the bulk create
45
  opcode from Ganeti. This lead to incompatible changes in the format of
46
  the JSON file. It's now not a custom dict anymore but a dict
47
  compatible with the ``OpInstanceCreate`` opcode.
48
- Parent directories for file storage need to be listed in
49
  ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
50
  write the file automatically based on old configuration values, but it
51
  can not distribute it across all nodes and the file contents should be
52
  verified. Use ``gnt-cluster copyfile
53
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
54
  upgraded. The reason for requiring this list of paths now is that
55
  before it would have been possible to inject new paths via RPC,
56
  allowing files to be created in arbitrary locations. The RPC protocol
57
  is protected using SSL/X.509 certificates, but as a design principle
58
  Ganeti does not permit arbitrary paths to be passed.
59
- The parsing of the variants file for OSes (see
60
  :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
61
  lines and comment lines (starting with ``#``) are ignored for better
62
  readability.
63
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
64
  longer available. ``gnt-node add`` now invokes a new tool on the
65
  destination node, named ``prepare-node-join``, to configure the SSH
66
  daemon. Paramiko is no longer necessary to configure nodes' SSH
67
  daemons via ``gnt-node add``.
68
- Draining (``gnt-cluster queue drain``) and un-draining the job queue
69
  (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
70
  the flag is not reset after a master failover.
71
- Python 2.4 has *not* been tested with this release. Using 2.6 or above
72
  is recommended. 2.6 will be mandatory from the 2.8 series.
73

    
74

    
75
New features
76
~~~~~~~~~~~~
77

    
78
- New network management functionality to support automatic allocation
79
  of IP addresses and managing of network parameters. See
80
  :manpage:`gnt-network(8)` for more details.
81
- New external storage backend, to allow managing arbitrary storage
82
  systems external to the cluster. See
83
  :manpage:`ganeti-extstorage-interface(7)`.
84
- New ``exclusive-storage`` node parameter added, restricted to
85
  nodegroup level. When it's set to true, physical disks are assigned in
86
  an exclusive fashion to instances, as documented in :doc:`Partitioned
87
  Ganeti <design-partitioned>`.  Currently, only instances using the
88
  ``plain`` disk template are supported.
89
- The KVM hypervisor has been updated with many new hypervisor
90
  parameters, including a generic one for passing arbitrary command line
91
  values. See a complete list in :manpage:`gnt-instance(8)`. It is now
92
  compatible up to qemu 1.4.
93
- A new tool, called ``mon-collector``, is the stand-alone executor of
94
  the data collectors for a monitoring system. As of this version, it
95
  just includes the DRBD data collector, that can be executed by calling
96
  ``mon-collector`` using the ``drbd`` parameter. See
97
  :manpage:`mon-collector(7)`.
98
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
99
  for RAPI users. It allows granting permissions to query for
100
  information to a specific user without giving
101
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
102
- A new tool named ``node-cleanup`` has been added. It cleans remains of
103
  a cluster from a machine by stopping all daemons, removing
104
  certificates and ssconf files. Unless the ``--no-backup`` option is
105
  given, copies of the certificates are made.
106
- Instance creations now support the use of opportunistic locking,
107
  potentially speeding up the (parallel) creation of multiple instances.
108
  This feature is currently only available via the :doc:`RAPI
109
  <rapi>` interface and when an instance allocator is used. If the
110
  ``opportunistic_locking`` parameter is set the opcode will try to
111
  acquire as many locks as possible, but will not wait for any locks
112
  held by other opcodes. If not enough resources can be found to
113
  allocate the instance, the temporary error code
114
  :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
115
  retried thereafter, with or without opportunistic locking.
116
- New experimental linux-ha resource scripts.
117
- Restricted-commands support: ganeti can now be asked (via command line
118
  or rapi) to perform commands on a node. These are passed via ganeti
119
  RPC rather than ssh. This functionality is restricted to commands
120
  specified on the ``$sysconfdir/ganeti/restricted-commands`` for security
121
  reasons. The file is not copied automatically.
122

    
123

    
124
Misc changes
125
~~~~~~~~~~~~
126

    
127
- Diskless instances are now externally mirrored (Issue 237). This for
128
  now has only been tested in conjunction with explicit target nodes for
129
  migration/failover.
130
- Queries not needing locks or RPC access to the node can now be
131
  performed by the confd daemon, making them independent from jobs, and
132
  thus faster to execute. This is selectable at configure time.
133
- The functionality for allocating multiple instances at once has been
134
  overhauled and is now also available through :doc:`RAPI <rapi>`.
135

    
136
There are no significant changes from version 2.7.0~rc3.
137

    
138

    
139
Version 2.7.0 rc3
140
-----------------
141

    
142
*(Released Tue, 25 Jun 2013)*
143

    
144
- Fix permissions on the confd query socket (Issue 477)
145
- Fix permissions on the job archive dir (Issue 498)
146
- Fix handling of an internal exception in replace-disks (Issue 472)
147
- Fix gnt-node info handling of shortened names (Issue 497)
148
- Fix gnt-instance grow-disk when wiping is enabled
149
- Documentation improvements, and support for newer pandoc
150
- Fix hspace honoring ipolicy for disks (Issue 484)
151
- Improve handling of the ``kvm_extra`` HV parameter
152

    
153

    
154
Version 2.7.0 rc2
155
-----------------
156

    
157
*(Released Fri, 24 May 2013)*
158

    
159
- ``devel/upload`` now works when ``/var/run`` on the target nodes is a
160
  symlink.
161
- Disks added through ``gnt-instance modify`` or created through
162
  ``gnt-instance recreate-disks`` are wiped, if the
163
  ``prealloc_wipe_disks`` flag is set.
164
- If wiping newly created disks fails, the disks are removed. Also,
165
  partial failures in creating disks through ``gnt-instance modify``
166
  triggers a cleanup of the partially-created disks.
167
- Removing the master IP address doesn't fail if the address has been
168
  already removed.
169
- Fix ownership of the OS log dir
170
- Workaround missing SO_PEERCRED constant (Issue 191)
171

    
172

    
173
Version 2.7.0 rc1
174
-----------------
175

    
176
*(Released Fri, 3 May 2013)*
177

    
178
This was the first release candidate of the 2.7 series. Since beta3:
179

    
180
- Fix kvm compatibility with qemu 1.4 (Issue 389)
181
- Documentation updates (admin guide, upgrade notes, install
182
  instructions) (Issue 372)
183
- Fix gnt-group list nodes and instances count (Issue 436)
184
- Fix compilation without non-mandatory libraries (Issue 441)
185
- Fix xen-hvm hypervisor forcing nics to type 'ioemu' (Issue 247)
186
- Make confd logging more verbose at INFO level (Issue 435)
187
- Improve "networks" documentation in :manpage:`gnt-instance(8)`
188
- Fix failure path for instance storage type conversion (Issue 229)
189
- Update htools text backend documentation
190
- Improve the renew-crypto section of :manpage:`gnt-cluster(8)`
191
- Disable inter-cluster instance move for file-based instances, because
192
  it is dependant on instance export, which is not supported for
193
  file-based instances. (Issue 414)
194
- Fix gnt-job crashes on non-ascii characters (Issue 427)
195
- Fix volume group checks on non-vm-capable nodes (Issue 432)
196

    
197

    
198
Version 2.7.0 beta3
199
-------------------
200

    
201
*(Released Mon, 22 Apr 2013)*
202

    
203
This was the third beta release of the 2.7 series. Since beta2:
204

    
205
- Fix hail to verify disk instance policies on a per-disk basis (Issue 418).
206
- Fix data loss on wrong usage of ``gnt-instance move``
207
- Properly export errors in confd-based job queries
208
- Add ``users-setup`` tool
209
- Fix iallocator protocol to report 0 as a disk size for diskless
210
  instances. This avoids hail breaking when a diskless instance is
211
  present.
212
- Fix job queue directory permission problem that made confd job queries
213
  fail. This requires running an ``ensure-dirs --full-run`` on upgrade
214
  for access to archived jobs (Issue 406).
215
- Limit the sizes of networks supported by ``gnt-network`` to something
216
  between a ``/16`` and a ``/30`` to prevent memory bloat and crashes.
217
- Fix bugs in instance disk template conversion
218
- Fix GHC 7 compatibility
219
- Fix ``burnin`` install path (Issue 426).
220
- Allow very small disk grows (Issue 347).
221
- Fix a ``ganeti-noded`` memory bloat introduced in 2.5, by making sure
222
  that noded doesn't import masterd code (Issue 419).
223
- Make sure the default metavg at cluster init is the same as the vg, if
224
  unspecified (Issue 358).
225
- Fix cleanup of partially created disks (part of Issue 416)
226

    
227

    
228
Version 2.7.0 beta2
229
-------------------
230

    
231
*(Released Tue, 2 Apr 2013)*
232

    
233
This was the second beta release of the 2.7 series. Since beta1:
234

    
235
- Networks no longer have a "type" slot, since this information was
236
  unused in Ganeti: instead of it tags should be used.
237
- The rapi client now has a ``target_node`` option to MigrateInstance.
238
- Fix early exit return code for hbal (Issue 386).
239
- Fix ``gnt-instance migrate/failover -n`` (Issue 396).
240
- Fix ``rbd showmapped`` output parsing (Issue 312).
241
- Networks are now referenced indexed by UUID, rather than name. This
242
  will require running cfgupgrade, from 2.7.0beta1, if networks are in
243
  use.
244
- The OS environment now includes network information.
245
- Deleting of a network is now disallowed if any instance nic is using
246
  it, to prevent dangling references.
247
- External storage is now documented in man pages.
248
- The exclusive_storage flag can now only be set at nodegroup level.
249
- Hbal can now submit an explicit priority with its jobs.
250
- Many network related locking fixes.
251
- Bump up the required pylint version to 0.25.1.
252
- Fix the ``no_remember`` option in RAPI client.
253
- Many ipolicy related tests, qa, and fixes.
254
- Many documentation improvements and fixes.
255
- Fix building with ``--disable-file-storage``.
256
- Fix ``-q`` option in htools, which was broken if passed more than
257
  once.
258
- Some haskell/python interaction improvements and fixes.
259
- Fix iallocator in case of missing LVM storage.
260
- Fix confd config load in case of ``--no-lvm-storage``.
261
- The confd/query functionality is now mentioned in the security
262
  documentation.
263

    
264

    
265
Version 2.7.0 beta1
266
-------------------
267

    
268
*(Released Wed, 6 Feb 2013)*
269

    
270
This was the first beta release of the 2.7 series. All important changes
271
are listed in the latest 2.7 entry.
272

    
273

    
274
Version 2.6.2
275
-------------
276

    
277
*(Released Fri, 21 Dec 2012)*
278

    
279
Important behaviour change: hbal won't rebalance anymore instances which
280
have the ``auto_balance`` attribute set to false. This was the intention
281
all along, but until now it only skipped those from the N+1 memory
282
reservation (DRBD-specific).
283

    
284
A significant number of bug fixes in this release:
285

    
286
- Fixed disk adoption interaction with ipolicy checks.
287
- Fixed networking issues when instances are started, stopped or
288
  migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
289
- Fixed the warning in cluster verify for shared storage instances not
290
  being redundant.
291
- Fixed removal of storage directory on shared file storage (issue 262).
292
- Fixed validation of LVM volume group name in OpClusterSetParams
293
  (``gnt-cluster modify``) (issue 285).
294
- Fixed runtime memory increases (``gnt-instance modify -m``).
295
- Fixed live migration under Xen's ``xl`` mode.
296
- Fixed ``gnt-instance console`` with ``xl``.
297
- Fixed building with newer Haskell compiler/libraries.
298
- Fixed PID file writing in Haskell daemons (confd); this prevents
299
  restart issues if confd was launched manually (outside of
300
  ``daemon-util``) while another copy of it was running
301
- Fixed a type error when doing live migrations with KVM (issue 297) and
302
  the error messages for failing migrations have been improved.
303
- Fixed opcode validation for the out-of-band commands (``gnt-node
304
  power``).
305
- Fixed a type error when unsetting OS hypervisor parameters (issue
306
  311); now it's possible to unset all OS-specific hypervisor
307
  parameters.
308
- Fixed the ``dry-run`` mode for many operations: verification of
309
  results was over-zealous but didn't take into account the ``dry-run``
310
  operation, resulting in "wrong" failures.
311
- Fixed bash completion in ``gnt-job list`` when the job queue has
312
  hundreds of entries; especially with older ``bash`` versions, this
313
  results in significant CPU usage.
314

    
315
And lastly, a few other improvements have been made:
316

    
317
- Added option to force master-failover without voting (issue 282).
318
- Clarified error message on lock conflict (issue 287).
319
- Logging of newly submitted jobs has been improved (issue 290).
320
- Hostname checks have been made uniform between instance rename and
321
  create (issue 291).
322
- The ``--submit`` option is now supported by ``gnt-debug delay``.
323
- Shutting down the master daemon by sending SIGTERM now stops it from
324
  processing jobs waiting for locks; instead, those jobs will be started
325
  once again after the master daemon is started the next time (issue
326
  296).
327
- Support for Xen's ``xl`` program has been improved (besides the fixes
328
  above).
329
- Reduced logging noise in the Haskell confd daemon (only show one log
330
  entry for each config reload, instead of two).
331
- Several man page updates and typo fixes.
332

    
333

    
334
Version 2.6.1
335
-------------
336

    
337
*(Released Fri, 12 Oct 2012)*
338

    
339
A small bugfix release. Among the bugs fixed:
340

    
341
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
342
  made the command unusable.
343
- Commands that issue many jobs don't fail anymore just because some jobs
344
  take so long that other jobs are archived.
345
- Failures during ``gnt-instance reinstall`` are reflected by the exit
346
  status.
347
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
348
  DRBD is enabled.
349
- When ``always_failover`` is set, ``--allow-failover`` is not required
350
  in migrate commands anymore.
351
- ``bash_completion`` works even if extglob is disabled.
352
- Fixed bug with locks that made failover for RDB-based instances fail.
353
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
354
  a random node instead of one based on the allocator metric.
355
- Support for newer versions of pylint and pep8.
356
- Hail doesn't fail anymore when trying to add an instance of type
357
  ``file``, ``sharedfile`` or ``rbd``.
358
- Added new Makefile target to rebuild the whole distribution, so that
359
  all files are included.
360

    
361

    
362
Version 2.6.0
363
-------------
364

    
365
*(Released Fri, 27 Jul 2012)*
366

    
367

    
368
.. attention:: The ``LUXI`` protocol has been made more consistent
369
   regarding its handling of command arguments. This, however, leads to
370
   incompatibility issues with previous versions. Please ensure that you
371
   restart Ganeti daemons soon after the upgrade, otherwise most
372
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
373
   pausing/resuming the watcher, cancelling and archiving jobs, querying
374
   the cluster configuration) will fail.
375

    
376

    
377
New features
378
~~~~~~~~~~~~
379

    
380
Instance run status
381
+++++++++++++++++++
382

    
383
The current ``admin_up`` field, which used to denote whether an instance
384
should be running or not, has been removed. Instead, ``admin_state`` is
385
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
386

    
387
The rational behind this is that an instance being “down” can have
388
different meanings:
389

    
390
- it could be down during a reboot
391
- it could be temporarily be down for a reinstall
392
- or it could be down because it is deprecated and kept just for its
393
  disk
394

    
395
The previous Boolean state was making it difficult to do capacity
396
calculations: should Ganeti reserve memory for a down instance? Now, the
397
tri-state field makes it clear:
398

    
399
- in ``up`` and ``down`` state, all resources are reserved for the
400
  instance, and it can be at any time brought up if it is down
401
- in ``offline`` state, only disk space is reserved for it, but not
402
  memory or CPUs
403

    
404
The field can have an extra use: since the transition between ``up`` and
405
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
406
transition between ``offline`` and ``down`` is done via ``gnt-instance
407
modify``, it is possible to given different rights to users. For
408
example, owners of an instance could be allowed to start/stop it, but
409
not transition it out of the offline state.
410

    
411
Instance policies and specs
412
+++++++++++++++++++++++++++
413

    
414
In previous Ganeti versions, an instance creation request was not
415
limited on the minimum size and on the maximum size just by the cluster
416
resources. As such, any policy could be implemented only in third-party
417
clients (RAPI clients, or shell wrappers over ``gnt-*``
418
tools). Furthermore, calculating cluster capacity via ``hspace`` again
419
required external input with regards to instance sizes.
420

    
421
In order to improve these workflows and to allow for example better
422
per-node group differentiation, we introduced instance specs, which
423
allow declaring:
424

    
425
- minimum instance disk size, disk count, memory size, cpu count
426
- maximum values for the above metrics
427
- and “standard” values (used in ``hspace`` to calculate the standard
428
  sized instances)
429

    
430
The minimum/maximum values can be also customised at node-group level,
431
for example allowing more powerful hardware to support bigger instance
432
memory sizes.
433

    
434
Beside the instance specs, there are a few other settings belonging to
435
the instance policy framework. It is possible now to customise, per
436
cluster and node-group:
437

    
438
- the list of allowed disk templates
439
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
440
- the maximum ratio of instance to spindles (see below for more
441
  information) for local storage
442

    
443
All these together should allow all tools that talk to Ganeti to know
444
what are the ranges of allowed values for instances and the
445
over-subscription that is allowed.
446

    
447
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
448
instance configuration, and the physical CPU configuration from the
449
node. For the spindle ratios however, we didn't track before these
450
values, so new parameters have been added:
451

    
452
- a new node parameter ``spindle_count``, defaults to 1, customisable at
453
  node group or node level
454
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
455

    
456
Note that spindles in this context doesn't need to mean actual
457
mechanical hard-drives; it's just a relative number for both the node
458
I/O capacity and instance I/O consumption.
459

    
460
Instance migration behaviour
461
++++++++++++++++++++++++++++
462

    
463
While live-migration is in general desirable over failover, it is
464
possible that for some workloads it is actually worse, due to the
465
variable time of the “suspend” phase during live migration.
466

    
467
To allow the tools to work consistently over such instances (without
468
having to hard-code instance names), a new backend parameter
469
``always_failover`` has been added to control the migration/failover
470
behaviour. When set to True, all migration requests for an instance will
471
instead fall-back to failover.
472

    
473
Instance memory ballooning
474
++++++++++++++++++++++++++
475

    
476
Initial support for memory ballooning has been added. The memory for an
477
instance is no longer fixed (backend parameter ``memory``), but instead
478
can vary between minimum and maximum values (backend parameters
479
``minmem`` and ``maxmem``). Currently we only change an instance's
480
memory when:
481

    
482
- live migrating or failing over and instance and the target node
483
  doesn't have enough memory
484
- user requests changing the memory via ``gnt-instance modify
485
  --runtime-memory``
486

    
487
Instance CPU pinning
488
++++++++++++++++++++
489

    
490
In order to control the use of specific CPUs by instance, support for
491
controlling CPU pinning has been added for the Xen, HVM and LXC
492
hypervisors. This is controlled by a new hypervisor parameter
493
``cpu_mask``; details about possible values for this are in the
494
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
495
VCPU-to-CPU mapping) form will work well only when all nodes in your
496
cluster have the same amount of CPUs.
497

    
498
Disk parameters
499
+++++++++++++++
500

    
501
Another area in which Ganeti was not customisable were the parameters
502
used for storage configuration, e.g. how many stripes to use for LVM,
503
DRBD resync configuration, etc.
504

    
505
To improve this area, we've added disks parameters, which are
506
customisable at cluster and node group level, and which allow to
507
specify various parameters for disks (DRBD has the most parameters
508
currently), for example:
509

    
510
- DRBD resync algorithm and parameters (e.g. speed)
511
- the default VG for meta-data volumes for DRBD
512
- number of stripes for LVM (plain disk template)
513
- the RBD pool
514

    
515
These parameters can be modified via ``gnt-cluster modify -D …`` and
516
``gnt-group modify -D …``, and are used at either instance creation (in
517
case of LVM stripes, for example) or at disk “activation” time
518
(e.g. resync speed).
519

    
520
Rados block device support
521
++++++++++++++++++++++++++
522

    
523
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
524
denoted by the ``rbd`` disk template type. This is considered
525
experimental, feedback is welcome. For details on configuring it, see
526
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
527

    
528
Master IP setup
529
+++++++++++++++
530

    
531
The existing master IP functionality works well only in simple setups (a
532
single network shared by all nodes); however, if nodes belong to
533
different networks, then the ``/32`` setup and lack of routing
534
information is not enough.
535

    
536
To allow the master IP to function well in more complex cases, the
537
system was reworked as follows:
538

    
539
- a master IP netmask setting has been added
540
- the master IP activation/turn-down code was moved from the node daemon
541
  to a separate script
542
- whether to run the Ganeti-supplied master IP script or a user-supplied
543
  on is a ``gnt-cluster init`` setting
544

    
545
Details about the location of the standard and custom setup scripts are
546
in the man page :manpage:`gnt-cluster(8)`; for information about the
547
setup script protocol, look at the Ganeti-supplied script.
548

    
549
SPICE support
550
+++++++++++++
551

    
552
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
553
improved.
554

    
555
It is now possible to use TLS-protected connections, and when renewing
556
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
557
it is now possible to specify spice or spice CA certificates. Also, it
558
is possible to configure a password for SPICE sessions via the
559
hypervisor parameter ``spice_password_file``.
560

    
561
There are also new parameters to control the compression and streaming
562
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
563
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
564
for the spice parameters.
565

    
566
Lastly, it is now possible to see the SPICE connection information via
567
``gnt-instance console``.
568

    
569
OVF converter
570
+++++++++++++
571

    
572
A new tool (``tools/ovfconverter``) has been added that supports
573
conversion between Ganeti and the `Open Virtualization Format
574
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
575
from).
576

    
577
This relies on the ``qemu-img`` tool to convert the disk formats, so the
578
actual compatibility with other virtualization solutions depends on it.
579

    
580
Confd daemon changes
581
++++++++++++++++++++
582

    
583
The configuration query daemon (``ganeti-confd``) is now optional, and
584
has been rewritten in Haskell; whether to use the daemon at all, use the
585
Python (default) or the Haskell version is selectable at configure time
586
via the ``--enable-confd`` parameter, which can take one of the
587
``haskell``, ``python`` or ``no`` values. If not used, disabling the
588
daemon will result in a smaller footprint; for larger systems, we
589
welcome feedback on the Haskell version which might become the default
590
in future versions.
591

    
592
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
593
daemon running. The Python version doesn't implement the new call.
594

    
595

    
596
User interface changes
597
~~~~~~~~~~~~~~~~~~~~~~
598

    
599
We have replaced the ``--disks`` option of ``gnt-instance
600
replace-disks`` with a more flexible ``--disk`` option, which allows
601
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
602
disk size and mode can be changed upon recreation (via ``gnt-instance
603
recreate-disks``, which accepts the same ``--disk`` option).
604

    
605
As many people are used to a ``show`` command, we have added that as an
606
alias to ``info`` on all ``gnt-*`` commands.
607

    
608
The ``gnt-instance grow-disk`` command has a new mode in which it can
609
accept the target size of the disk, instead of the delta; this can be
610
more safe since two runs in absolute mode will be idempotent, and
611
sometimes it's also easier to specify the desired size directly.
612

    
613
Also the handling of instances with regard to offline secondaries has
614
been improved. Instance operations should not fail because one of it's
615
secondary nodes is offline, even though it's safe to proceed.
616

    
617
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
618
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
619
minors to instance name.
620

    
621
API changes
622
~~~~~~~~~~~
623

    
624
RAPI coverage has improved, with (for example) new resources for
625
recreate-disks, node power-cycle, etc.
626

    
627
Compatibility
628
~~~~~~~~~~~~~
629

    
630
There is partial support for ``xl`` in the Xen hypervisor; feedback is
631
welcome.
632

    
633
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
634
whether to still support Python 2.4 or move to Python 2.6 as minimum
635
required version.
636

    
637
Support for Fedora has been slightly improved; the provided example
638
init.d script should work better on it and the INSTALL file should
639
document the needed dependencies.
640

    
641
Internal changes
642
~~~~~~~~~~~~~~~~
643

    
644
The deprecated ``QueryLocks`` LUXI request has been removed. Use
645
``Query(what=QR_LOCK, ...)`` instead.
646

    
647
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
648
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
649
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
650
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
651
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
652

    
653
RAPI client: ``CertificateError`` now derives from
654
``GanetiApiError``. This should make it more easy to handle Ganeti
655
errors.
656

    
657
Deprecation warnings due to PyCrypto/paramiko import in
658
``tools/setup-ssh`` have been silenced, as usually they are safe; please
659
make sure to run an up-to-date paramiko version, if you use this tool.
660

    
661
The QA scripts now depend on Python 2.5 or above (the main code base
662
still works with Python 2.4).
663

    
664
The configuration file (``config.data``) is now written without
665
indentation for performance reasons; if you want to edit it, it can be
666
re-formatted via ``tools/fmtjson``.
667

    
668
A number of bugs has been fixed in the cluster merge tool.
669

    
670
``x509`` certification verification (used in import-export) has been
671
changed to allow the same clock skew as permitted by the cluster
672
verification. This will remove some rare but hard to diagnose errors in
673
import-export.
674

    
675

    
676
Version 2.6.0 rc4
677
-----------------
678

    
679
*(Released Thu, 19 Jul 2012)*
680

    
681
Very few changes from rc4 to the final release, only bugfixes:
682

    
683
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
684
  instance, fix CDROM booting for KVM instances)
685
- fixed node group modification of node parameters
686
- fixed issue in LUClusterVerifyGroup with multi-group clusters
687
- fixed generation of bash completion to ensure a stable ordering
688
- fixed a few typos
689

    
690

    
691
Version 2.6.0 rc3
692
-----------------
693

    
694
*(Released Fri, 13 Jul 2012)*
695

    
696
Third release candidate for 2.6. The following changes were done from
697
rc3 to rc4:
698

    
699
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
700
- Fixed an inconsistency in the LUXI protocol with the provided
701
  arguments (NOT backwards compatible)
702
- Fixed a bug with node groups ipolicy where ``min`` was greater than
703
  the cluster ``std`` value
704
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
705
  easier instance debugging on nodes (requires ``hconfd`` to work)
706

    
707

    
708
Version 2.6.0 rc2
709
-----------------
710

    
711
*(Released Tue, 03 Jul 2012)*
712

    
713
Second release candidate for 2.6. The following changes were done from
714
rc2 to rc3:
715

    
716
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
717
  master candidates
718
- Fixed a RAPI regression on missing beparams/memory
719
- Fixed redistribution of files on offline nodes
720
- Added possibility to run activate-disks even though secondaries are
721
  offline. With this change it relaxes also the strictness on some other
722
  commands which use activate disks internally:
723
  * ``gnt-instance start|reboot|rename|backup|export``
724
- Made it possible to remove safely an instance if its secondaries are
725
  offline
726
- Made it possible to reinstall even though secondaries are offline
727

    
728

    
729
Version 2.6.0 rc1
730
-----------------
731

    
732
*(Released Mon, 25 Jun 2012)*
733

    
734
First release candidate for 2.6. The following changes were done from
735
rc1 to rc2:
736

    
737
- Fixed bugs with disk parameters and ``rbd`` templates as well as
738
  ``instance_os_add``
739
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
740
  behaviour. It supports now the modify operation
741
- ``hcheck`` implemented to analyze cluster health and possibility of
742
  improving health by rebalance
743
- ``hbal`` has been improved in dealing with split instances
744

    
745

    
746
Version 2.6.0 beta2
747
-------------------
748

    
749
*(Released Mon, 11 Jun 2012)*
750

    
751
Second beta release of 2.6. The following changes were done from beta2
752
to rc1:
753

    
754
- Fixed ``daemon-util`` with non-root user models
755
- Fixed creation of plain instances with ``--no-wait-for-sync``
756
- Fix wrong iv_names when running ``cfgupgrade``
757
- Export more information in RAPI group queries
758
- Fixed bug when changing instance network interfaces
759
- Extended burnin to do NIC changes
760
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
761
- Changed default for DRBD barriers
762
- Fixed DRBD error reporting for syncer rate
763
- Verify the options on disk parameters
764

    
765
And of course various fixes to documentation and improved unittests and
766
QA.
767

    
768

    
769
Version 2.6.0 beta1
770
-------------------
771

    
772
*(Released Wed, 23 May 2012)*
773

    
774
First beta release of 2.6. The following changes were done from beta1 to
775
beta2:
776

    
777
- integrated patch for distributions without ``start-stop-daemon``
778
- adapted example init.d script to work on Fedora
779
- fixed log handling in Haskell daemons
780
- adapted checks in the watcher for pycurl linked against libnss
781
- add partial support for ``xl`` instead of ``xm`` for Xen
782
- fixed a type issue in cluster verification
783
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
784
  clusters)
785

    
786
Plus integrated fixes from the 2.5 branch:
787

    
788
- fixed ``kvm-ifup`` to use ``/bin/bash``
789
- fixed parallel build failures
790
- KVM live migration when using a custom keymap
791

    
792

    
793
Version 2.5.2
794
-------------
795

    
796
*(Released Tue, 24 Jul 2012)*
797

    
798
A small bugfix release, with no new features:
799

    
800
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
801
  different default shell (e.g. Debian, Ubuntu)
802
- fixed KVM startup and live migration with a custom keymap (fixes Issue
803
  243 and Debian bug #650664)
804
- fixed compatibility with KVM versions that don't support multiple boot
805
  devices (fixes Issue 230 and Debian bug #624256)
806

    
807
Additionally, a few fixes were done to the build system (fixed parallel
808
build failures) and to the unittests (fixed race condition in test for
809
FileID functions, and the default enable/disable mode for QA test is now
810
customisable).
811

    
812

    
813
Version 2.5.1
814
-------------
815

    
816
*(Released Fri, 11 May 2012)*
817

    
818
A small bugfix release.
819

    
820
The main issues solved are on the topic of compatibility with newer LVM
821
releases:
822

    
823
- fixed parsing of ``lv_attr`` field
824
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
825
  the ``--force`` flag is needed
826

    
827
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
828
to accept kernel 3.x too (was hardcoded to 2.6.*).
829

    
830
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
831
of hook results and that also made display of other errors suboptimal
832
was fixed; the code behaves now like 2.4 and earlier.
833

    
834
Another change in 2.5, the cleanup of the OS scripts environment, is too
835
aggressive: it removed even the ``PATH`` variable, which requires the OS
836
scripts to *always* need to export it. Since this is a bit too strict,
837
we now export a minimal PATH, the same that we export for hooks.
838

    
839
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
840
integrated into this release.
841

    
842
Finally, a few other miscellaneous changes were done (no new features,
843
just small improvements):
844

    
845
- Fix ``gnt-group --help`` display
846
- Fix hardcoded Xen kernel path
847
- Fix grow-disk handling of invalid units
848
- Update synopsis for ``gnt-cluster repair-disk-sizes``
849
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
850

    
851

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

    
855
*(Released Thu, 12 Apr 2012)*
856

    
857
Incompatible/important changes and bugfixes
858
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
859

    
860
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
861
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
862
  to match the underlying LUXI interface.
863
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
864
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
865
  not maintain backwards-compatibility as the underlying operation
866
  changed in an incompatible way. The RAPI client can talk to old
867
  servers, but it needs to be told so as the return value changed.
868
- When creating file-based instances via RAPI, the ``file_driver``
869
  parameter no longer defaults to ``loop`` and must be specified.
870
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
871
  ``link`` instead.
872
- Support for the undocumented and deprecated RAPI instance creation
873
  request format version 0 has been dropped. Use version 1, supported
874
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
875
- Pyparsing 1.4.6 or above is required, see :doc:`installation
876
  documentation <install>`.
877
- The "cluster-verify" hooks are now executed per group by the
878
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
879
  if you just run ``gnt-cluster verify``, which generates one opcode per
880
  group.
881
- The environment as passed to the OS scripts is cleared, and thus no
882
  environment variables defined in the node daemon's environment will be
883
  inherited by the scripts.
884
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
885
  deprecated.
886
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
887
  support operations involving multiple node groups.
888
- Offline nodes are ignored when failing over an instance.
889
- Support for KVM version 1.0, which changed the version reporting format
890
  from 3 to 2 digits.
891
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
892
  removal.
893
- ``Makefile`` is now compatible with Automake 1.11.2
894
- Includes all bugfixes made in the 2.4 series
895

    
896
New features
897
~~~~~~~~~~~~
898

    
899
- The ganeti-htools project has been merged into the ganeti-core source
900
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
901
- Implemented support for :doc:`shared storage <design-shared-storage>`.
902
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
903
  GPT-style partition tables (requires `parted
904
  <http://www.gnu.org/s/parted/>`_).
905
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
906
- Allowed adding tags on instance creation.
907
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
908
- Allow instances to be started in a paused state, enabling the user to
909
  see the complete console output on boot using the console.
910
- Added new hypervisor flag to control default reboot behaviour
911
  (``reboot_behavior``).
912
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
913
- Improved out-of-band management support:
914

    
915
  - Added ``gnt-node health`` command reporting the health status of
916
    nodes.
917
  - Added ``gnt-node power`` command to manage power status of nodes.
918
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
919

    
920
- Instance migration can fall back to failover if instance is not
921
  running.
922
- Filters can be used when listing nodes, instances, groups and locks;
923
  see :manpage:`ganeti(7)` manpage.
924
- Added post-execution status as variables to :doc:`hooks <hooks>`
925
  environment.
926
- Instance tags are exported/imported together with the instance.
927
- When given an explicit job ID, ``gnt-job info`` will work for archived
928
  jobs.
929
- Jobs can define dependencies on other jobs (not yet supported via
930
  RAPI or command line, but used by internal commands and usable via
931
  LUXI).
932

    
933
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
934
    dependencies.
935

    
936
- Instance failover is now available as a RAPI resource
937
  (``/2/instances/[instance_name]/failover``).
938
- ``gnt-instance info`` defaults to static information if primary node
939
  is offline.
940
- Opcodes have a new ``comment`` attribute.
941
- Added basic SPICE support to KVM hypervisor.
942
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
943

    
944
Node group improvements
945
~~~~~~~~~~~~~~~~~~~~~~~
946

    
947
- ``gnt-cluster verify`` has been modified to check groups separately,
948
  thereby improving performance.
949
- Node group support has been added to ``gnt-cluster verify-disks``,
950
  which now operates per node group.
951
- Watcher has been changed to work better with node groups.
952

    
953
  - One process and state file per node group.
954
  - Slow watcher in one group doesn't block other group's watcher.
955

    
956
- Added new command, ``gnt-group evacuate``, to move all instances in a
957
  node group to other groups.
958
- Added ``gnt-instance change-group`` to move an instance to another
959
  node group.
960
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
961
  per-group operations.
962
- Node groups can be tagged.
963
- Some operations switch from an exclusive to a shared lock as soon as
964
  possible.
965
- Instance's primary and secondary nodes' groups are now available as
966
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
967
  and ``snodes.group.uuid``).
968

    
969
Misc
970
~~~~
971

    
972
- Numerous updates to documentation and manpages.
973

    
974
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
975
    descriptions.
976
  - Some opcode/job results are now also documented, see :doc:`RAPI
977
    <rapi>`.
978

    
979
- A lockset's internal lock is now also visible in lock monitor.
980
- Log messages from job queue workers now contain information about the
981
  opcode they're processing.
982
- ``gnt-instance console`` no longer requires the instance lock.
983
- A short delay when waiting for job changes reduces the number of LUXI
984
  requests significantly.
985
- DRBD metadata volumes are overwritten with zeros during disk creation.
986
- Out-of-band commands no longer acquire the cluster lock in exclusive
987
  mode.
988
- ``devel/upload`` now uses correct permissions for directories.
989

    
990

    
991
Version 2.5.0 rc6
992
-----------------
993

    
994
*(Released Fri, 23 Mar 2012)*
995

    
996
This was the sixth release candidate of the 2.5 series.
997

    
998

    
999
Version 2.5.0 rc5
1000
-----------------
1001

    
1002
*(Released Mon, 9 Jan 2012)*
1003

    
1004
This was the fifth release candidate of the 2.5 series.
1005

    
1006

    
1007
Version 2.5.0 rc4
1008
-----------------
1009

    
1010
*(Released Thu, 27 Oct 2011)*
1011

    
1012
This was the fourth release candidate of the 2.5 series.
1013

    
1014

    
1015
Version 2.5.0 rc3
1016
-----------------
1017

    
1018
*(Released Wed, 26 Oct 2011)*
1019

    
1020
This was the third release candidate of the 2.5 series.
1021

    
1022

    
1023
Version 2.5.0 rc2
1024
-----------------
1025

    
1026
*(Released Tue, 18 Oct 2011)*
1027

    
1028
This was the second release candidate of the 2.5 series.
1029

    
1030

    
1031
Version 2.5.0 rc1
1032
-----------------
1033

    
1034
*(Released Tue, 4 Oct 2011)*
1035

    
1036
This was the first release candidate of the 2.5 series.
1037

    
1038

    
1039
Version 2.5.0 beta3
1040
-------------------
1041

    
1042
*(Released Wed, 31 Aug 2011)*
1043

    
1044
This was the third beta release of the 2.5 series.
1045

    
1046

    
1047
Version 2.5.0 beta2
1048
-------------------
1049

    
1050
*(Released Mon, 22 Aug 2011)*
1051

    
1052
This was the second beta release of the 2.5 series.
1053

    
1054

    
1055
Version 2.5.0 beta1
1056
-------------------
1057

    
1058
*(Released Fri, 12 Aug 2011)*
1059

    
1060
This was the first beta release of the 2.5 series.
1061

    
1062

    
1063
Version 2.4.5
1064
-------------
1065

    
1066
*(Released Thu, 27 Oct 2011)*
1067

    
1068
- Fixed bug when parsing command line parameter values ending in
1069
  backslash
1070
- Fixed assertion error after unclean master shutdown
1071
- Disable HTTP client pool for RPC, significantly reducing memory usage
1072
  of master daemon
1073
- Fixed queue archive creation with wrong permissions
1074

    
1075

    
1076
Version 2.4.4
1077
-------------
1078

    
1079
*(Released Tue, 23 Aug 2011)*
1080

    
1081
Small bug-fixes:
1082

    
1083
- Fixed documentation for importing with ``--src-dir`` option
1084
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
1085
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
1086

    
1087

    
1088
Version 2.4.3
1089
-------------
1090

    
1091
*(Released Fri, 5 Aug 2011)*
1092

    
1093
Many bug-fixes and a few small features:
1094

    
1095
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
1096
  issues when you tried to add an instance with two MAC addresses in one
1097
  request
1098
- KVM: fixed per-instance stored UID value
1099
- KVM: configure bridged NICs at migration start
1100
- KVM: Fix a bug where instance will not start with never KVM versions
1101
  (>= 0.14)
1102
- Added OS search path to ``gnt-cluster info``
1103
- Fixed an issue with ``file_storage_dir`` where you were forced to
1104
  provide an absolute path, but the documentation states it is a
1105
  relative path, the documentation was right
1106
- Added a new parameter to instance stop/start called ``--no-remember``
1107
  that will make the state change to not be remembered
1108
- Implemented ``no_remember`` at RAPI level
1109
- Improved the documentation
1110
- Node evacuation: don't call IAllocator if node is already empty
1111
- Fixed bug in DRBD8 replace disks on current nodes
1112
- Fixed bug in recreate-disks for DRBD instances
1113
- Moved assertion checking locks in ``gnt-instance replace-disks``
1114
  causing it to abort with not owning the right locks for some situation
1115
- Job queue: Fixed potential race condition when cancelling queued jobs
1116
- Fixed off-by-one bug in job serial generation
1117
- ``gnt-node volumes``: Fix instance names
1118
- Fixed aliases in bash completion
1119
- Fixed a bug in reopening log files after being sent a SIGHUP
1120
- Added a flag to burnin to allow specifying VCPU count
1121
- Bugfixes to non-root Ganeti configuration
1122

    
1123

    
1124
Version 2.4.2
1125
-------------
1126

    
1127
*(Released Thu, 12 May 2011)*
1128

    
1129
Many bug-fixes and a few new small features:
1130

    
1131
- Fixed a bug related to log opening failures
1132
- Fixed a bug in instance listing with orphan instances
1133
- Fixed a bug which prevented resetting the cluster-level node parameter
1134
  ``oob_program`` to the default
1135
- Many fixes related to the ``cluster-merge`` tool
1136
- Fixed a race condition in the lock monitor, which caused failures
1137
  during (at least) creation of many instances in parallel
1138
- Improved output for gnt-job info
1139
- Removed the quiet flag on some ssh calls which prevented debugging
1140
  failures
1141
- Improved the N+1 failure messages in cluster verify by actually
1142
  showing the memory values (needed and available)
1143
- Increased lock attempt timeouts so that when executing long operations
1144
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
1145
  too early and thus prevent the use of the 'fair' mechanism
1146
- Changed instance query data (``gnt-instance info``) to not acquire
1147
  locks unless needed, thus allowing its use on locked instance if only
1148
  static information is asked for
1149
- Improved behaviour with filesystems that do not support rename on an
1150
  opened file
1151
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
1152
  kept locks on all nodes during the wipe, which is unneeded
1153
- Fixed ``gnt-watcher`` handling of errors during hooks execution
1154
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
1155
  10GiB) which caused the wipe to fail right at the end in some cases
1156
- Fixed master IP activation when doing master failover with no-voting
1157
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
1158
  the master node itself
1159
- Fixed potential data-loss in under disk full conditions, where Ganeti
1160
  wouldn't check correctly the return code and would consider
1161
  partially-written files 'correct'
1162
- Fixed bug related to multiple VGs and DRBD disk replacing
1163
- Added new disk parameter ``metavg`` that allows placement of the meta
1164
  device for DRBD in a different volume group
1165
- Fixed error handling in the node daemon when the system libc doesn't
1166
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
1167
- Fixed lock release during replace-disks, which kept cluster-wide locks
1168
  when doing disk replaces with an iallocator script
1169
- Added check for missing bridges in cluster verify
1170
- Handle EPIPE errors while writing to the terminal better, so that
1171
  piping the output to e.g. ``less`` doesn't cause a backtrace
1172
- Fixed rare case where a ^C during Luxi calls could have been
1173
  interpreted as server errors, instead of simply terminating
1174
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
1175
  assign-nodes``)
1176
- Added a few more parameters to the KVM hypervisor, allowing a second
1177
  CDROM, custom disk type for CDROMs and a floppy image
1178
- Removed redundant message in instance rename when the name is given
1179
  already as a FQDN
1180
- Added option to ``gnt-instance recreate-disks`` to allow creating the
1181
  disks on new nodes, allowing recreation when the original instance
1182
  nodes are completely gone
1183
- Added option when converting disk templates to DRBD to skip waiting
1184
  for the resync, in order to make the instance available sooner
1185
- Added two new variables to the OS scripts environment (containing the
1186
  instance's nodes)
1187
- Made the root_path and optional parameter for the xen-pvm hypervisor,
1188
  to allow use of ``pvgrub`` as bootloader
1189
- Changed the instance memory modifications to only check out-of-memory
1190
  conditions on memory increases, and turned the secondary node warnings
1191
  into errors (they can still be overridden via ``--force``)
1192
- Fixed the handling of a corner case when the Python installation gets
1193
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
1194
  to execute a command that doesn't exist
1195
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
1196
  node of the instance returned failures during instance shutdown; this
1197
  adds the option ``--ignore-consistency`` to gnt-instance move
1198

    
1199
And as usual, various improvements to the error messages, documentation
1200
and man pages.
1201

    
1202

    
1203
Version 2.4.1
1204
-------------
1205

    
1206
*(Released Wed, 09 Mar 2011)*
1207

    
1208
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
1209
the RAPI users file if run twice (even with ``--dry-run``).
1210

    
1211
The release fixes that bug (nothing else changed).
1212

    
1213

    
1214
Version 2.4.0
1215
-------------
1216

    
1217
*(Released Mon, 07 Mar 2011)*
1218

    
1219
Final 2.4.0 release. Just a few small fixes:
1220

    
1221
- Fixed RAPI node evacuate
1222
- Fixed the kvm-ifup script
1223
- Fixed internal error handling for special job cases
1224
- Updated man page to specify the escaping feature for options
1225

    
1226

    
1227
Version 2.4.0 rc3
1228
-----------------
1229

    
1230
*(Released Mon, 28 Feb 2011)*
1231

    
1232
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1233
that this feature wiped the disks of the wrong instance, leading to loss
1234
of data.
1235

    
1236
Other changes:
1237

    
1238
- Fixed title of query field containing instance name
1239
- Expanded the glossary in the documentation
1240
- Fixed one unittest (internal issue)
1241

    
1242

    
1243
Version 2.4.0 rc2
1244
-----------------
1245

    
1246
*(Released Mon, 21 Feb 2011)*
1247

    
1248
A number of bug fixes plus just a couple functionality changes.
1249

    
1250
On the user-visible side, the ``gnt-* list`` command output has changed
1251
with respect to "special" field states. The current rc1 style of display
1252
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1253
the default output mode special fields states are displayed as follows:
1254

    
1255
- Offline resource: ``*``
1256
- Unavailable/not applicable: ``-``
1257
- Data missing (RPC failure): ``?``
1258
- Unknown field: ``??``
1259

    
1260
Another user-visible change is the addition of ``--force-join`` to
1261
``gnt-node add``.
1262

    
1263
As for bug fixes:
1264

    
1265
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
1266
- Fixed regression in RAPI/instance reinstall where all parameters were
1267
  required (instead of optional)
1268
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1269
- Fixed iallocator usage (offline nodes were not considered offline)
1270
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1271
- Fixed hypervisor and OS parameter validation with respect to
1272
  non-vm_capable nodes
1273
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1274
  cosmetic)
1275
- Fixed ``tools/listrunner`` with respect to agent-based usage
1276

    
1277

    
1278
Version 2.4.0 rc1
1279
-----------------
1280

    
1281
*(Released Fri,  4 Feb 2011)*
1282

    
1283
Many changes and fixes since the beta1 release. While there were some
1284
internal changes, the code has been mostly stabilised for the RC
1285
release.
1286

    
1287
Note: the dumb allocator was removed in this release, as it was not kept
1288
up-to-date with the IAllocator protocol changes. It is recommended to
1289
use the ``hail`` command from the ganeti-htools package.
1290

    
1291
Note: the 2.4 and up versions of Ganeti are not compatible with the
1292
0.2.x branch of ganeti-htools. You need to upgrade to
1293
ganeti-htools-0.3.0 (or later).
1294

    
1295
Regressions fixed from 2.3
1296
~~~~~~~~~~~~~~~~~~~~~~~~~~
1297

    
1298
- Fixed the ``gnt-cluster verify-disks`` command
1299
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1300
  serially on nodes)
1301
- Fixed disk adoption breakage
1302
- Fixed wrong headers in instance listing for field aliases
1303

    
1304
Other bugs fixed
1305
~~~~~~~~~~~~~~~~
1306

    
1307
- Fixed corner case in KVM handling of NICs
1308
- Fixed many cases of wrong handling of non-vm_capable nodes
1309
- Fixed a bug where a missing instance symlink was not possible to
1310
  recreate with any ``gnt-*`` command (now ``gnt-instance
1311
  activate-disks`` does it)
1312
- Fixed the volume group name as reported by ``gnt-cluster
1313
  verify-disks``
1314
- Increased timeouts for the import-export code, hopefully leading to
1315
  fewer aborts due network or instance timeouts
1316
- Fixed bug in ``gnt-node list-storage``
1317
- Fixed bug where not all daemons were started on cluster
1318
  initialisation, but only at the first watcher run
1319
- Fixed many bugs in the OOB implementation
1320
- Fixed watcher behaviour in presence of instances with offline
1321
  secondaries
1322
- Fixed instance list output for instances running on the wrong node
1323
- a few fixes to the cluster-merge tool, but it still cannot merge
1324
  multi-node groups (currently it is not recommended to use this tool)
1325

    
1326

    
1327
Improvements
1328
~~~~~~~~~~~~
1329

    
1330
- Improved network configuration for the KVM hypervisor
1331
- Added e1000 as a supported NIC for Xen-HVM
1332
- Improved the lvmstrap tool to also be able to use partitions, as
1333
  opposed to full disks
1334
- Improved speed of disk wiping (the cluster parameter
1335
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1336
  of instance creations
1337
- Added documentation for the OS parameters
1338
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1339
  hypervisor is not responding
1340
- Added display of blacklisted and hidden OS information in
1341
  ``gnt-cluster info``
1342
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1343
  NIC and node parameters, which might create problems with currently
1344
  invalid (but undetected) configuration files, but prevents validation
1345
  failures when unrelated parameters are modified
1346
- Changed cluster initialisation to wait for the master daemon to become
1347
  available
1348
- Expanded the RAPI interface:
1349

    
1350
  - Added config redistribution resource
1351
  - Added activation/deactivation of instance disks
1352
  - Added export of console information
1353

    
1354
- Implemented log file reopening on SIGHUP, which allows using
1355
  logrotate(8) for the Ganeti log files
1356
- Added a basic OOB helper script as an example
1357

    
1358

    
1359
Version 2.4.0 beta1
1360
-------------------
1361

    
1362
*(Released Fri, 14 Jan 2011)*
1363

    
1364
User-visible
1365
~~~~~~~~~~~~
1366

    
1367
- Fixed timezone issues when formatting timestamps
1368
- Added support for node groups, available via ``gnt-group`` and other
1369
  commands
1370
- Added out-of-band framework and management, see :doc:`design
1371
  document <design-oob>`
1372
- Removed support for roman numbers from ``gnt-node list`` and
1373
  ``gnt-instance list``.
1374
- Allowed modification of master network interface via ``gnt-cluster
1375
  modify --master-netdev``
1376
- Accept offline secondaries while shutting down instance disks
1377
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1378
- Added support for multiple LVM volume groups
1379
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1380
  requested
1381
- Added commands to list available fields:
1382

    
1383
  - ``gnt-node list-fields``
1384
  - ``gnt-group list-fields``
1385
  - ``gnt-instance list-fields``
1386

    
1387
- Updated documentation and man pages
1388

    
1389
Integration
1390
~~~~~~~~~~~
1391

    
1392
- Moved ``rapi_users`` file into separate directory, now named
1393
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1394
  symlink
1395
- Added new tool for running commands on many machines,
1396
  ``tools/ganeti-listrunner``
1397
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1398
  improving the ``gnt-instance console`` output
1399
- Allowed customisation of disk index separator at ``configure`` time
1400
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1401
- Added support for non-partitioned md disks in ``lvmstrap``
1402
- Added script to gracefully power off KVM instances
1403
- Split ``utils`` module into smaller parts
1404
- Changed query operations to return more detailed information, e.g.
1405
  whether an information is unavailable due to an offline node. To use
1406
  this new functionality, the LUXI call ``Query`` must be used. Field
1407
  information is now stored by the master daemon and can be retrieved
1408
  using ``QueryFields``. Instances, nodes and groups can also be queried
1409
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1410
  exposed via RAPI). The following commands make use of this
1411
  infrastructure change:
1412

    
1413
  - ``gnt-group list``
1414
  - ``gnt-group list-fields``
1415
  - ``gnt-node list``
1416
  - ``gnt-node list-fields``
1417
  - ``gnt-instance list``
1418
  - ``gnt-instance list-fields``
1419
  - ``gnt-debug locks``
1420

    
1421
Remote API
1422
~~~~~~~~~~
1423

    
1424
- New RAPI resources (see :doc:`rapi`):
1425

    
1426
  - ``/2/modify``
1427
  - ``/2/groups``
1428
  - ``/2/groups/[group_name]``
1429
  - ``/2/groups/[group_name]/assign-nodes``
1430
  - ``/2/groups/[group_name]/modify``
1431
  - ``/2/groups/[group_name]/rename``
1432
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1433

    
1434
- RAPI changes:
1435

    
1436
  - Implemented ``no_install`` for instance creation
1437
  - Implemented OS parameters for instance reinstallation, allowing
1438
    use of special settings on reinstallation (e.g. for preserving data)
1439

    
1440
Misc
1441
~~~~
1442

    
1443
- Added IPv6 support in import/export
1444
- Pause DRBD synchronization while wiping disks on instance creation
1445
- Updated unittests and QA scripts
1446
- Improved network parameters passed to KVM
1447
- Converted man pages from docbook to reStructuredText
1448

    
1449

    
1450
Version 2.3.1
1451
-------------
1452

    
1453
*(Released Mon, 20 Dec 2010)*
1454

    
1455
Released version 2.3.1~rc1 without any changes.
1456

    
1457

    
1458
Version 2.3.1 rc1
1459
-----------------
1460

    
1461
*(Released Wed, 1 Dec 2010)*
1462

    
1463
- impexpd: Disable OpenSSL compression in socat if possible (backport
1464
  from master, commit e90739d625b, see :doc:`installation guide
1465
  <install-quick>` for details)
1466
- Changed unittest coverage report to exclude test scripts
1467
- Added script to check version format
1468

    
1469

    
1470
Version 2.3.0
1471
-------------
1472

    
1473
*(Released Wed, 1 Dec 2010)*
1474

    
1475
Released version 2.3.0~rc1 without any changes.
1476

    
1477

    
1478
Version 2.3.0 rc1
1479
-----------------
1480

    
1481
*(Released Fri, 19 Nov 2010)*
1482

    
1483
A number of bugfixes and documentation updates:
1484

    
1485
- Update ganeti-os-interface documentation
1486
- Fixed a bug related to duplicate MACs or similar items which should be
1487
  unique
1488
- Fix breakage in OS state modify
1489
- Reinstall instance: disallow offline secondaries (fixes bug related to
1490
  OS changing but reinstall failing)
1491
- plus all the other fixes between 2.2.1 and 2.2.2
1492

    
1493

    
1494
Version 2.3.0 rc0
1495
-----------------
1496

    
1497
*(Released Tue, 2 Nov 2010)*
1498

    
1499
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1500
- Fixed master failover race with watcher
1501
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1502
  configuration
1503
- Accept previously stopped instance for export with instance removal
1504
- Simplify and extend the environment variables for instance OS scripts
1505
- Added new node flags, ``master_capable`` and ``vm_capable``
1506
- Added optional instance disk wiping prior during allocation. This is a
1507
  cluster-wide option and can be set/modified using
1508
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1509
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1510
  :doc:`install-quick`
1511
- Added a new watcher option (``--ignore-pause``)
1512
- Added option to ignore offline node on instance start/stop
1513
  (``--ignore-offline``)
1514
- Allow overriding OS parameters with ``gnt-instance reinstall``
1515
- Added ability to change node's secondary IP address using ``gnt-node
1516
  modify``
1517
- Implemented privilege separation for all daemons except
1518
  ``ganeti-noded``, see ``configure`` options
1519
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1520
  verify``
1521
- Implemented job priorities (see ``ganeti(7)`` manpage)
1522
- Ignore failures while shutting down instances during failover from
1523
  offline node
1524
- Exit daemon's bootstrap process only once daemon is ready
1525
- Export more information via ``LUInstanceQuery``/remote API
1526
- Improved documentation, QA and unittests
1527
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1528
  restart if the file was created or changed
1529
- Added LUXI protocol version sent with each request and response,
1530
  allowing detection of server/client mismatches
1531
- Moved the Python scripts among gnt-* and ganeti-* into modules
1532
- Moved all code related to setting up SSH to an external script,
1533
  ``setup-ssh``
1534
- Infrastructure changes for node group support in future versions
1535

    
1536

    
1537
Version 2.2.2
1538
-------------
1539

    
1540
*(Released Fri, 19 Nov 2010)*
1541

    
1542
A few small bugs fixed, and some improvements to the build system:
1543

    
1544
- Fix documentation regarding conversion to drbd
1545
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1546
  -B``)
1547
- Fix error handling in node modify with multiple changes
1548
- Allow remote imports without checked names
1549

    
1550

    
1551
Version 2.2.1
1552
-------------
1553

    
1554
*(Released Tue, 19 Oct 2010)*
1555

    
1556
- Disable SSL session ID cache in RPC client
1557

    
1558

    
1559
Version 2.2.1 rc1
1560
-----------------
1561

    
1562
*(Released Thu, 14 Oct 2010)*
1563

    
1564
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1565
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1566
  with GnuTLS
1567
- Fix problems with interaction between Curl and Python's HTTP server,
1568
  resulting in increased speed in many RPC calls
1569
- Improve our release script to prevent breakage with older aclocal and
1570
  Python 2.6
1571

    
1572

    
1573
Version 2.2.1 rc0
1574
-----------------
1575

    
1576
*(Released Thu, 7 Oct 2010)*
1577

    
1578
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1579
  value retrieved from master
1580
- Added support for blacklisted or hidden OS definitions
1581
- Added simple lock monitor (accessible via (``gnt-debug locks``)
1582
- Added support for -mem-path in KVM hypervisor abstraction layer
1583
- Allow overriding instance parameters in tool for inter-cluster
1584
  instance moves (``tools/move-instance``)
1585
- Improved opcode summaries (e.g. in ``gnt-job list``)
1586
- Improve consistency of OS listing by sorting it
1587
- Documentation updates
1588

    
1589

    
1590
Version 2.2.0.1
1591
---------------
1592

    
1593
*(Released Fri, 8 Oct 2010)*
1594

    
1595
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
1596

    
1597

    
1598
Version 2.2.0
1599
-------------
1600

    
1601
*(Released Mon, 4 Oct 2010)*
1602

    
1603
- Fixed regression in ``gnt-instance rename``
1604

    
1605

    
1606
Version 2.2.0 rc2
1607
-----------------
1608

    
1609
*(Released Wed, 22 Sep 2010)*
1610

    
1611
- Fixed OS_VARIANT variable for OS scripts
1612
- Fixed cluster tag operations via RAPI
1613
- Made ``setup-ssh`` exit with non-zero code if an error occurred
1614
- Disabled RAPI CA checks in watcher
1615

    
1616

    
1617
Version 2.2.0 rc1
1618
-----------------
1619

    
1620
*(Released Mon, 23 Aug 2010)*
1621

    
1622
- Support DRBD versions of the format "a.b.c.d"
1623
- Updated manpages
1624
- Re-introduce support for usage from multiple threads in RAPI client
1625
- Instance renames and modify via RAPI
1626
- Work around race condition between processing and archival in job
1627
  queue
1628
- Mark opcodes following failed one as failed, too
1629
- Job field ``lock_status`` was removed due to difficulties making it
1630
  work with the changed job queue in Ganeti 2.2; a better way to monitor
1631
  locks is expected for a later 2.2.x release
1632
- Fixed dry-run behaviour with many commands
1633
- Support ``ssh-agent`` again when adding nodes
1634
- Many additional bugfixes
1635

    
1636

    
1637
Version 2.2.0 rc0
1638
-----------------
1639

    
1640
*(Released Fri, 30 Jul 2010)*
1641

    
1642
Important change: the internal RPC mechanism between Ganeti nodes has
1643
changed from using a home-grown http library (based on the Python base
1644
libraries) to use the PycURL library. This requires that PycURL is
1645
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
1646
against GnuTLS by default. cURL's support for GnuTLS had known issues
1647
before cURL 7.21.0 and we recommend using the latest cURL release or
1648
linking against OpenSSL. Most other distributions already link PycURL
1649
and cURL against OpenSSL. The command::
1650

    
1651
  python -c 'import pycurl; print pycurl.version'
1652

    
1653
can be used to determine the libraries PycURL and cURL are linked
1654
against.
1655

    
1656
Other significant changes:
1657

    
1658
- Rewrote much of the internals of the job queue, in order to achieve
1659
  better parallelism; this decouples job query operations from the job
1660
  processing, and it should allow much nicer behaviour of the master
1661
  daemon under load, and it also has uncovered some long-standing bugs
1662
  related to the job serialisation (now fixed)
1663
- Added a default iallocator setting to the cluster parameters,
1664
  eliminating the need to always pass nodes or an iallocator for
1665
  operations that require selection of new node(s)
1666
- Added experimental support for the LXC virtualization method
1667
- Added support for OS parameters, which allows the installation of
1668
  instances to pass parameter to OS scripts in order to customise the
1669
  instance
1670
- Added a hypervisor parameter controlling the migration type (live or
1671
  non-live), since hypervisors have various levels of reliability; this
1672
  has renamed the 'live' parameter to 'mode'
1673
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
1674
  logical volumes, meaning that cluster verify will ignore them and not
1675
  flag their presence as errors
1676
- The watcher will now reset the error count for failed instances after
1677
  8 hours, thus allowing self-healing if the problem that caused the
1678
  instances to be down/fail to start has cleared in the meantime
1679
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
1680
  check for, and warn, if the drbd module parameter ``usermode_helper``
1681
  is not consistent with the cluster-wide setting; this is needed to
1682
  make diagnose easier of failed drbd creations
1683
- Started adding base IPv6 support, but this is not yet
1684
  enabled/available for use
1685
- Rename operations (cluster, instance) will now return the new name,
1686
  which is especially useful if a short name was passed in
1687
- Added support for instance migration in RAPI
1688
- Added a tool to pre-configure nodes for the SSH setup, before joining
1689
  them to the cluster; this will allow in the future a simplified model
1690
  for node joining (but not yet fully enabled in 2.2); this needs the
1691
  paramiko python library
1692
- Fixed handling of name-resolving errors
1693
- Fixed consistency of job results on the error path
1694
- Fixed master-failover race condition when executed multiple times in
1695
  sequence
1696
- Fixed many bugs related to the job queue (mostly introduced during the
1697
  2.2 development cycle, so not all are impacting 2.1)
1698
- Fixed instance migration with missing disk symlinks
1699
- Fixed handling of unknown jobs in ``gnt-job archive``
1700
- And many other small fixes/improvements
1701

    
1702
Internal changes:
1703

    
1704
- Enhanced both the unittest and the QA coverage
1705
- Switched the opcode validation to a generic model, and extended the
1706
  validation to all opcode parameters
1707
- Changed more parts of the code that write shell scripts to use the
1708
  same class for this
1709
- Switched the master daemon to use the asyncore library for the Luxi
1710
  server endpoint
1711

    
1712

    
1713
Version 2.2.0 beta0
1714
-------------------
1715

    
1716
*(Released Thu, 17 Jun 2010)*
1717

    
1718
- Added tool (``move-instance``) and infrastructure to move instances
1719
  between separate clusters (see :doc:`separate documentation
1720
  <move-instance>` and :doc:`design document <design-2.2>`)
1721
- Added per-request RPC timeout
1722
- RAPI now requires a Content-Type header for requests with a body (e.g.
1723
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
1724
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
1725
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
1726
  reachable
1727
- Implemented initial support for running Ganeti daemons as separate
1728
  users, see configure-time flags ``--with-user-prefix`` and
1729
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
1730
  time)
1731
- Instances can be removed after export (``gnt-backup export
1732
  --remove-instance``)
1733
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
1734
  key (instead of 1024 bit)
1735
- Added new cluster configuration file for cluster domain secret
1736
- Import/export now use SSL instead of SSH
1737
- Added support for showing estimated time when exporting an instance,
1738
  see the ``ganeti-os-interface(7)`` manpage and look for
1739
  ``EXP_SIZE_FD``
1740

    
1741

    
1742
Version 2.1.8
1743
-------------
1744

    
1745
*(Released Tue, 16 Nov 2010)*
1746

    
1747
Some more bugfixes. Unless critical bugs occur, this will be the last
1748
2.1 release:
1749

    
1750
- Fix case of MAC special-values
1751
- Fix mac checker regex
1752
- backend: Fix typo causing "out of range" error
1753
- Add missing --units in gnt-instance list man page
1754

    
1755

    
1756
Version 2.1.7
1757
-------------
1758

    
1759
*(Released Tue, 24 Aug 2010)*
1760

    
1761
Bugfixes only:
1762
  - Don't ignore secondary node silently on non-mirrored disk templates
1763
    (issue 113)
1764
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
1765
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
1766
  - Properly document the usb_mouse parameter
1767
  - Fix path in ganeti-rapi(8) (issue 116)
1768
  - Adjust error message when the ganeti user's .ssh directory is
1769
    missing
1770
  - Add same-node-check when changing the disk template to drbd
1771

    
1772

    
1773
Version 2.1.6
1774
-------------
1775

    
1776
*(Released Fri, 16 Jul 2010)*
1777

    
1778
Bugfixes only:
1779
  - Add an option to only select some reboot types during qa/burnin.
1780
    (on some hypervisors consequent reboots are not supported)
1781
  - Fix infrequent race condition in master failover. Sometimes the old
1782
    master ip address would be still detected as up for a short time
1783
    after it was removed, causing failover to fail.
1784
  - Decrease mlockall warnings when the ctypes module is missing. On
1785
    Python 2.4 we support running even if no ctypes module is installed,
1786
    but we were too verbose about this issue.
1787
  - Fix building on old distributions, on which man doesn't have a
1788
    --warnings option.
1789
  - Fix RAPI not to ignore the MAC address on instance creation
1790
  - Implement the old instance creation format in the RAPI client.
1791

    
1792

    
1793
Version 2.1.5
1794
-------------
1795

    
1796
*(Released Thu, 01 Jul 2010)*
1797

    
1798
A small bugfix release:
1799
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
1800
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
1801
    a non-existing option
1802
  - Fix instance create: the --force-variant option was ignored
1803
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
1804
  - Fix modify node storage with non-FQDN arguments
1805
  - Fix RAPI client to authenticate under Python 2.6 when used
1806
    for more than 5 requests needing authentication
1807
  - Fix gnt-instance modify -t (storage) giving a wrong error message
1808
    when converting a non-shutdown drbd instance to plain
1809

    
1810

    
1811
Version 2.1.4
1812
-------------
1813

    
1814
*(Released Fri, 18 Jun 2010)*
1815

    
1816
A small bugfix release:
1817

    
1818
  - Fix live migration of KVM instances started with older Ganeti
1819
    versions which had fewer hypervisor parameters
1820
  - Fix gnt-instance grow-disk on down instances
1821
  - Fix an error-reporting bug during instance migration
1822
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
1823
    silently ignoring broken ones
1824
  - Fix an RPC error reporting bug affecting, for example, RAPI client
1825
    users
1826
  - Fix bug triggered by different API version os-es on different nodes
1827
  - Fix a bug in instance startup with custom hvparams: OS level
1828
    parameters would fail to be applied.
1829
  - Fix the RAPI client under Python 2.6 (but more work is needed to
1830
    make it work completely well with OpenSSL)
1831
  - Fix handling of errors when resolving names from DNS
1832

    
1833

    
1834
Version 2.1.3
1835
-------------
1836

    
1837
*(Released Thu, 3 Jun 2010)*
1838

    
1839
A medium sized development cycle. Some new features, and some
1840
fixes/small improvements/cleanups.
1841

    
1842
Significant features
1843
~~~~~~~~~~~~~~~~~~~~
1844

    
1845
The node deamon now tries to mlock itself into memory, unless the
1846
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1847
its logs, and falls back to console logging. This allows emergency
1848
features such as ``gnt-node powercycle`` to work even in the event of a
1849
broken node disk (tested offlining the disk hosting the node's
1850
filesystem and dropping its memory caches; don't try this at home)
1851

    
1852
KVM: add vhost-net acceleration support. It can be tested with a new
1853
enough version of the kernel and of qemu-kvm.
1854

    
1855
KVM: Add instance chrooting feature. If you use privilege dropping for
1856
your VMs you can also now force them to chroot to an empty directory,
1857
before starting the emulated guest.
1858

    
1859
KVM: Add maximum migration bandwith and maximum downtime tweaking
1860
support (requires a new-enough version of qemu-kvm).
1861

    
1862
Cluster verify will now warn if the master node doesn't have the master
1863
ip configured on it.
1864

    
1865
Add a new (incompatible) instance creation request format to RAPI which
1866
supports all parameters (previously only a subset was supported, and it
1867
wasn't possible to extend the old format to accomodate all the new
1868
features. The old format is still supported, and a client can check for
1869
this feature, before using it, by checking for its presence in the
1870
``features`` RAPI resource.
1871

    
1872
Now with ancient latin support. Try it passing the ``--roman`` option to
1873
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1874
(requires the python-roman module to be installed, in order to work).
1875

    
1876
Other changes
1877
~~~~~~~~~~~~~
1878

    
1879
As usual many internal code refactorings, documentation updates, and
1880
such. Among others:
1881

    
1882
  - Lots of improvements and cleanups to the experimental Remote API
1883
    (RAPI) client library.
1884
  - A new unit test suite for the core daemon libraries.
1885
  - A fix to creating missing directories makes sure the umask is not
1886
    applied anymore. This enforces the same directory permissions
1887
    everywhere.
1888
  - Better handling terminating daemons with ctrl+c (used when running
1889
    them in debugging mode).
1890
  - Fix a race condition in live migrating a KVM instance, when stat()
1891
    on the old proc status file returned EINVAL, which is an unexpected
1892
    value.
1893
  - Fixed manpage checking with newer man and utf-8 charachters. But now
1894
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1895

    
1896

    
1897
Version 2.1.2.1
1898
---------------
1899

    
1900
*(Released Fri, 7 May 2010)*
1901

    
1902
Fix a bug which prevented untagged KVM instances from starting.
1903

    
1904

    
1905
Version 2.1.2
1906
-------------
1907

    
1908
*(Released Fri, 7 May 2010)*
1909

    
1910
Another release with a long development cycle, during which many
1911
different features were added.
1912

    
1913
Significant features
1914
~~~~~~~~~~~~~~~~~~~~
1915

    
1916
The KVM hypervisor now can run the individual instances as non-root, to
1917
reduce the impact of a VM being hijacked due to bugs in the
1918
hypervisor. It is possible to run all instances as a single (non-root)
1919
user, to manually specify a user for each instance, or to dynamically
1920
allocate a user out of a cluster-wide pool to each instance, with the
1921
guarantee that no two instances will run under the same user ID on any
1922
given node.
1923

    
1924
An experimental RAPI client library, that can be used standalone
1925
(without the other Ganeti libraries), is provided in the source tree as
1926
``lib/rapi/client.py``. Note this client might change its interface in
1927
the future, as we iterate on its capabilities.
1928

    
1929
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1930
replace the cluster's certificates and crypto keys. This might help in
1931
case they have been compromised, or have simply expired.
1932

    
1933
A new disk option for instance creation has been added that allows one
1934
to "adopt" currently existing logical volumes, with data
1935
preservation. This should allow easier migration to Ganeti from
1936
unmanaged (or managed via other software) instances.
1937

    
1938
Another disk improvement is the possibility to convert between redundant
1939
(DRBD) and plain (LVM) disk configuration for an instance. This should
1940
allow better scalability (starting with one node and growing the
1941
cluster, or shrinking a two-node cluster to one node).
1942

    
1943
A new feature that could help with automated node failovers has been
1944
implemented: if a node sees itself as offline (by querying the master
1945
candidates), it will try to shutdown (hard) all instances and any active
1946
DRBD devices. This reduces the risk of duplicate instances if an
1947
external script automatically failovers the instances on such nodes. To
1948
enable this, the cluster parameter ``maintain_node_health`` should be
1949
enabled; in the future this option (per the name) will enable other
1950
automatic maintenance features.
1951

    
1952
Instance export/import now will reuse the original instance
1953
specifications for all parameters; that means exporting an instance,
1954
deleting it and the importing it back should give an almost identical
1955
instance. Note that the default import behaviour has changed from
1956
before, where it created only one NIC; now it recreates the original
1957
number of NICs.
1958

    
1959
Cluster verify has added a few new checks: SSL certificates validity,
1960
/etc/hosts consistency across the cluster, etc.
1961

    
1962
Other changes
1963
~~~~~~~~~~~~~
1964

    
1965
As usual, many internal changes were done, documentation fixes,
1966
etc. Among others:
1967

    
1968
- Fixed cluster initialization with disabled cluster storage (regression
1969
  introduced in 2.1.1)
1970
- File-based storage supports growing the disks
1971
- Fixed behaviour of node role changes
1972
- Fixed cluster verify for some corner cases, plus a general rewrite of
1973
  cluster verify to allow future extension with more checks
1974
- Fixed log spamming by watcher and node daemon (regression introduced
1975
  in 2.1.1)
1976
- Fixed possible validation issues when changing the list of enabled
1977
  hypervisors
1978
- Fixed cleanup of /etc/hosts during node removal
1979
- Fixed RAPI response for invalid methods
1980
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1981
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1982
  from ide disks, etc.)
1983
- Allow OS changes without re-installation (to record a changed OS
1984
  outside of Ganeti, or to allow OS renames)
1985
- Allow instance creation without OS installation (useful for example if
1986
  the OS will be installed manually, or restored from a backup not in
1987
  Ganeti format)
1988
- Implemented option to make cluster ``copyfile`` use the replication
1989
  network
1990
- Added list of enabled hypervisors to ssconf (possibly useful for
1991
  external scripts)
1992
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1993
  1.2 clusters
1994
- A partial form of node re-IP is possible via node readd, which now
1995
  allows changed node primary IP
1996
- Command line utilities now show an informational message if the job is
1997
  waiting for a lock
1998
- The logs of the master daemon now show the PID/UID/GID of the
1999
  connected client
2000

    
2001

    
2002
Version 2.1.1
2003
-------------
2004

    
2005
*(Released Fri, 12 Mar 2010)*
2006

    
2007
During the 2.1.0 long release candidate cycle, a lot of improvements and
2008
changes have accumulated with were released later as 2.1.1.
2009

    
2010
Major changes
2011
~~~~~~~~~~~~~
2012

    
2013
The node evacuate command (``gnt-node evacuate``) was significantly
2014
rewritten, and as such the IAllocator protocol was changed - a new
2015
request type has been added. This unfortunate change during a stable
2016
series is designed to improve performance of node evacuations; on
2017
clusters with more than about five nodes and which are well-balanced,
2018
evacuation should proceed in parallel for all instances of the node
2019
being evacuated. As such, any existing IAllocator scripts need to be
2020
updated, otherwise the above command will fail due to the unknown
2021
request. The provided "dumb" allocator has not been updated; but the
2022
ganeti-htools package supports the new protocol since version 0.2.4.
2023

    
2024
Another important change is increased validation of node and instance
2025
names. This might create problems in special cases, if invalid host
2026
names are being used.
2027

    
2028
Also, a new layer of hypervisor parameters has been added, that sits at
2029
OS level between the cluster defaults and the instance ones. This allows
2030
customisation of virtualization parameters depending on the installed
2031
OS. For example instances with OS 'X' may have a different KVM kernel
2032
(or any other parameter) than the cluster defaults. This is intended to
2033
help managing a multiple OSes on the same cluster, without manual
2034
modification of each instance's parameters.
2035

    
2036
A tool for merging clusters, ``cluster-merge``, has been added in the
2037
tools sub-directory.
2038

    
2039
Bug fixes
2040
~~~~~~~~~
2041

    
2042
- Improved the int/float conversions that should make the code more
2043
  robust in face of errors from the node daemons
2044
- Fixed the remove node code in case of internal configuration errors
2045
- Fixed the node daemon behaviour in face of inconsistent queue
2046
  directory (e.g. read-only file-system where we can't open the files
2047
  read-write, etc.)
2048
- Fixed the behaviour of gnt-node modify for master candidate demotion;
2049
  now it either aborts cleanly or, if given the new "auto_promote"
2050
  parameter, will automatically promote other nodes as needed
2051
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
2052
  completely prevent Ganeti from working
2053
- Fixed bug for instance export when not all disks were successfully
2054
  exported
2055
- Fixed behaviour of node add when the new node is slow in starting up
2056
  the node daemon
2057
- Fixed handling of signals in the LUXI client, which should improve
2058
  behaviour of command-line scripts
2059
- Added checks for invalid node/instance names in the configuration (now
2060
  flagged during cluster verify)
2061
- Fixed watcher behaviour for disk activation errors
2062
- Fixed two potentially endless loops in http library, which led to the
2063
  RAPI daemon hanging and consuming 100% CPU in some cases
2064
- Fixed bug in RAPI daemon related to hashed passwords
2065
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
2066
  instances
2067
- Enhanced compatibility with non-Debian OSes, but not using absolute
2068
  path in some commands and allowing customisation of the ssh
2069
  configuration directory
2070
- Fixed possible future issue with new Python versions by abiding to the
2071
  proper use of ``__slots__`` attribute on classes
2072
- Added checks that should prevent directory traversal attacks
2073
- Many documentation fixes based on feedback from users
2074

    
2075
New features
2076
~~~~~~~~~~~~
2077

    
2078
- Added an "early_release" more for instance replace disks and node
2079
  evacuate, where we release locks earlier and thus allow higher
2080
  parallelism within the cluster
2081
- Added watcher hooks, intended to allow the watcher to restart other
2082
  daemons (e.g. from the ganeti-nbma project), but they can be used of
2083
  course for any other purpose
2084
- Added a compile-time disable for DRBD barriers, to increase
2085
  performance if the administrator trusts the power supply or the
2086
  storage system to not lose writes
2087
- Added the option of using syslog for logging instead of, or in
2088
  addition to, Ganeti's own log files
2089
- Removed boot restriction for paravirtual NICs for KVM, recent versions
2090
  can indeed boot from a paravirtual NIC
2091
- Added a generic debug level for many operations; while this is not
2092
  used widely yet, it allows one to pass the debug value all the way to
2093
  the OS scripts
2094
- Enhanced the hooks environment for instance moves (failovers,
2095
  migrations) where the primary/secondary nodes changed during the
2096
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
2097
- Enhanced data validations for many user-supplied values; one important
2098
  item is the restrictions imposed on instance and node names, which
2099
  might reject some (invalid) host names
2100
- Add a configure-time option to disable file-based storage, if it's not
2101
  needed; this allows greater security separation between the master
2102
  node and the other nodes from the point of view of the inter-node RPC
2103
  protocol
2104
- Added user notification in interactive tools if job is waiting in the
2105
  job queue or trying to acquire locks
2106
- Added log messages when a job is waiting for locks
2107
- Added filtering by node tags in instance operations which admit
2108
  multiple instances (start, stop, reboot, reinstall)
2109
- Added a new tool for cluster mergers, ``cluster-merge``
2110
- Parameters from command line which are of the form ``a=b,c=d`` can now
2111
  use backslash escapes to pass in values which contain commas,
2112
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
2113
  ``b,c``
2114
- For KVM, the instance name is the first parameter passed to KVM, so
2115
  that it's more visible in the process list
2116

    
2117

    
2118
Version 2.1.0
2119
-------------
2120

    
2121
*(Released Tue, 2 Mar 2010)*
2122

    
2123
Ganeti 2.1 brings many improvements with it. Major changes:
2124

    
2125
- Added infrastructure to ease automated disk repairs
2126
- Added new daemon to export configuration data in a cheaper way than
2127
  using the remote API
2128
- Instance NICs can now be routed instead of being associated with a
2129
  networking bridge
2130
- Improved job locking logic to reduce impact of jobs acquiring multiple
2131
  locks waiting for other long-running jobs
2132

    
2133
In-depth implementation details can be found in the Ganeti 2.1 design
2134
document.
2135

    
2136
Details
2137
~~~~~~~
2138

    
2139
- Added chroot hypervisor
2140
- Added more options to xen-hvm hypervisor (``kernel_path`` and
2141
  ``device_model``)
2142
- Added more options to xen-pvm hypervisor (``use_bootloader``,
2143
  ``bootloader_path`` and ``bootloader_args``)
2144
- Added the ``use_localtime`` option for the xen-hvm and kvm
2145
  hypervisors, and the default value for this has changed to false (in
2146
  2.0 xen-hvm always enabled it)
2147
- Added luxi call to submit multiple jobs in one go
2148
- Added cluster initialization option to not modify ``/etc/hosts``
2149
  file on nodes
2150
- Added network interface parameters
2151
- Added dry run mode to some LUs
2152
- Added RAPI resources:
2153

    
2154
  - ``/2/instances/[instance_name]/info``
2155
  - ``/2/instances/[instance_name]/replace-disks``
2156
  - ``/2/nodes/[node_name]/evacuate``
2157
  - ``/2/nodes/[node_name]/migrate``
2158
  - ``/2/nodes/[node_name]/role``
2159
  - ``/2/nodes/[node_name]/storage``
2160
  - ``/2/nodes/[node_name]/storage/modify``
2161
  - ``/2/nodes/[node_name]/storage/repair``
2162

    
2163
- Added OpCodes to evacuate or migrate all instances on a node
2164
- Added new command to list storage elements on nodes (``gnt-node
2165
  list-storage``) and modify them (``gnt-node modify-storage``)
2166
- Added new ssconf files with master candidate IP address
2167
  (``ssconf_master_candidates_ips``), node primary IP address
2168
  (``ssconf_node_primary_ips``) and node secondary IP address
2169
  (``ssconf_node_secondary_ips``)
2170
- Added ``ganeti-confd`` and a client library to query the Ganeti
2171
  configuration via UDP
2172
- Added ability to run hooks after cluster initialization and before
2173
  cluster destruction
2174
- Added automatic mode for disk replace (``gnt-instance replace-disks
2175
  --auto``)
2176
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
2177
  after catastrophic data-loss
2178
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
2179
  groups
2180
- Added ``gnt-instance move`` command to move instances
2181
- Added ``gnt-cluster watcher`` command to control watcher
2182
- Added ``gnt-node powercycle`` command to powercycle nodes
2183
- Added new job status field ``lock_status``
2184
- Added parseable error codes to cluster verification (``gnt-cluster
2185
  verify --error-codes``) and made output less verbose (use
2186
  ``--verbose`` to restore previous behaviour)
2187
- Added UUIDs to the main config entities (cluster, nodes, instances)
2188
- Added support for OS variants
2189
- Added support for hashed passwords in the Ganeti remote API users file
2190
  (``rapi_users``)
2191
- Added option to specify maximum timeout on instance shutdown
2192
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
2193
- Added new helper script to start and stop Ganeti daemons
2194
  (``daemon-util``), with the intent to reduce the work necessary to
2195
  adjust Ganeti for non-Debian distributions and to start/stop daemons
2196
  from one place
2197
- Added more unittests
2198
- Fixed critical bug in ganeti-masterd startup
2199
- Removed the configure-time ``kvm-migration-port`` parameter, this is
2200
  now customisable at the cluster level for both the KVM and Xen
2201
  hypervisors using the new ``migration_port`` parameter
2202
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
2203
  reinstalling an instance
2204
- Allowed ``@`` in tag names
2205
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
2206
- Many documentation updates
2207
- Distribute hypervisor files on ``gnt-cluster redist-conf``
2208
- ``gnt-instance reinstall`` can now reinstall multiple instances
2209
- Updated many command line parameters
2210
- Introduced new OS API version 15
2211
- No longer support a default hypervisor
2212
- Treat virtual LVs as inexistent
2213
- Improved job locking logic to reduce lock contention
2214
- Match instance and node names case insensitively
2215
- Reimplemented bash completion script to be more complete
2216
- Improved burnin
2217

    
2218

    
2219
Version 2.0.6
2220
-------------
2221

    
2222
*(Released Thu, 4 Feb 2010)*
2223

    
2224
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2225
- Fix a string formatting bug
2226
- Improve safety of the code in some error paths
2227
- Improve data validation in the master of values returned from nodes
2228

    
2229

    
2230
Version 2.0.5
2231
-------------
2232

    
2233
*(Released Thu, 17 Dec 2009)*
2234

    
2235
- Fix security issue due to missing validation of iallocator names; this
2236
  allows local and remote execution of arbitrary executables
2237
- Fix failure of gnt-node list during instance removal
2238
- Ship the RAPI documentation in the archive
2239

    
2240

    
2241
Version 2.0.4
2242
-------------
2243

    
2244
*(Released Wed, 30 Sep 2009)*
2245

    
2246
- Fixed many wrong messages
2247
- Fixed a few bugs related to the locking library
2248
- Fixed MAC checking at instance creation time
2249
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
2250
- Fixed a few issues related to signal handling in both daemons and
2251
  scripts
2252
- Fixed the example startup script provided
2253
- Fixed insserv dependencies in the example startup script (patch from
2254
  Debian)
2255
- Fixed handling of drained nodes in the iallocator framework
2256
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2257
  #528618)
2258
- Fixed error related to invalid job IDs in job polling
2259
- Fixed job/opcode persistence on unclean master shutdown
2260
- Fixed handling of partial job processing after unclean master
2261
  shutdown
2262
- Fixed error reporting from LUs, previously all errors were converted
2263
  into execution errors
2264
- Fixed error reporting from burnin
2265
- Decreased significantly the memory usage of the job queue
2266
- Optimised slightly multi-job submission
2267
- Optimised slightly opcode loading
2268
- Backported the multi-job submit framework from the development
2269
  branch; multi-instance start and stop should be faster
2270
- Added script to clean archived jobs after 21 days; this will reduce
2271
  the size of the queue directory
2272
- Added some extra checks in disk size tracking
2273
- Added an example ethers hook script
2274
- Added a cluster parameter that prevents Ganeti from modifying of
2275
  /etc/hosts
2276
- Added more node information to RAPI responses
2277
- Added a ``gnt-job watch`` command that allows following the ouput of a
2278
  job
2279
- Added a bind-address option to ganeti-rapi
2280
- Added more checks to the configuration verify
2281
- Enhanced the burnin script such that some operations can be retried
2282
  automatically
2283
- Converted instance reinstall to multi-instance model
2284

    
2285

    
2286
Version 2.0.3
2287
-------------
2288

    
2289
*(Released Fri, 7 Aug 2009)*
2290

    
2291
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2292
  to allow using the pre-2.0.2 behaviour in activation, if any existing
2293
  instances have mismatched disk sizes in the configuration
2294
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
2295
  any configuration mismatches for disk sizes
2296
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2297
  failover to work on two-node clusters
2298
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2299
  unusable
2300
- Fixed detection of OS script errors in ``gnt-backup export``
2301
- Fixed exit code of ``gnt-backup export``
2302

    
2303

    
2304
Version 2.0.2
2305
-------------
2306

    
2307
*(Released Fri, 17 Jul 2009)*
2308

    
2309
- Added experimental support for stripped logical volumes; this should
2310
  enhance performance but comes with a higher complexity in the block
2311
  device handling; stripping is only enabled when passing
2312
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2313
  affected even in the non-stripped mode
2314
- Improved resiliency against transient failures at the end of DRBD
2315
  resyncs, and in general of DRBD resync checks
2316
- Fixed a couple of issues with exports and snapshot errors
2317
- Fixed a couple of issues in instance listing
2318
- Added display of the disk size in ``gnt-instance info``
2319
- Fixed checking for valid OSes in instance creation
2320
- Fixed handling of the "vcpus" parameter in instance listing and in
2321
  general of invalid parameters
2322
- Fixed http server library, and thus RAPI, to handle invalid
2323
  username/password combinations correctly; this means that now they
2324
  report unauthorized for queries too, not only for modifications,
2325
  allowing earlier detect of configuration problems
2326
- Added a new "role" node list field, equivalent to the master/master
2327
  candidate/drained/offline flags combinations
2328
- Fixed cluster modify and changes of candidate pool size
2329
- Fixed cluster verify error messages for wrong files on regular nodes
2330
- Fixed a couple of issues with node demotion from master candidate role
2331
- Fixed node readd issues
2332
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2333
- Added a new ``--no-voting`` option for masterfailover to fix failover
2334
  on two-nodes clusters when the former master node is unreachable
2335
- Added instance reinstall over RAPI
2336

    
2337

    
2338
Version 2.0.1
2339
-------------
2340

    
2341
*(Released Tue, 16 Jun 2009)*
2342

    
2343
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2344
  allow re-adding the start in single-user option (regression from 1.2)
2345
- the watcher writes the instance status to a file, to allow monitoring
2346
  to report the instance status (from the master) based on cached
2347
  results of the watcher's queries; while this can get stale if the
2348
  watcher is being locked due to other work on the cluster, this is
2349
  still an improvement
2350
- the watcher now also restarts the node daemon and the rapi daemon if
2351
  they died
2352
- fixed the watcher to handle full and drained queue cases
2353
- hooks export more instance data in the environment, which helps if
2354
  hook scripts need to take action based on the instance's properties
2355
  (no longer need to query back into ganeti)
2356
- instance failovers when the instance is stopped do not check for free
2357
  RAM, so that failing over a stopped instance is possible in low memory
2358
  situations
2359
- rapi uses queries for tags instead of jobs (for less job traffic), and
2360
  for cluster tags it won't talk to masterd at all but read them from
2361
  ssconf
2362
- a couple of error handling fixes in RAPI
2363
- drbd handling: improved the error handling of inconsistent disks after
2364
  resync to reduce the frequency of "there are some degraded disks for
2365
  this instance" messages
2366
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2367
  error handling path called a wrong function name)
2368

    
2369

    
2370
Version 2.0.0
2371
-------------
2372

    
2373
*(Released Wed, 27 May 2009)*
2374

    
2375
- no changes from rc5
2376

    
2377

    
2378
Version 2.0 rc5
2379
---------------
2380

    
2381
*(Released Wed, 20 May 2009)*
2382

    
2383
- fix a couple of bugs (validation, argument checks)
2384
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2385
- some small improvements to RAPI and IAllocator
2386
- make watcher automatically start the master daemon if down
2387

    
2388

    
2389
Version 2.0 rc4
2390
---------------
2391

    
2392
*(Released Mon, 27 Apr 2009)*
2393

    
2394
- change the OS list to not require locks; this helps with big clusters
2395
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2396
  volume group is broken
2397
- ``gnt-instance info``, without any arguments, doesn't run for all
2398
  instances anymore; either pass ``--all`` or pass the desired
2399
  instances; this helps against mistakes on big clusters where listing
2400
  the information for all instances takes a long time
2401
- miscellaneous doc and man pages fixes
2402

    
2403

    
2404
Version 2.0 rc3
2405
---------------
2406

    
2407
*(Released Wed, 8 Apr 2009)*
2408

    
2409
- Change the internal locking model of some ``gnt-node`` commands, in
2410
  order to reduce contention (and blocking of master daemon) when
2411
  batching many creation/reinstall jobs
2412
- Fixes to Xen soft reboot
2413
- No longer build documentation at build time, instead distribute it in
2414
  the archive, in order to reduce the need for the whole docbook/rst
2415
  toolchains
2416

    
2417

    
2418
Version 2.0 rc2
2419
---------------
2420

    
2421
*(Released Fri, 27 Mar 2009)*
2422

    
2423
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2424
- Fix watcher startup sequence, improves the behaviour of busy clusters
2425
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2426
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2427
  bind address and other places
2428
- Some documentation fixes and updates
2429

    
2430

    
2431
Version 2.0 rc1
2432
---------------
2433

    
2434
*(Released Mon, 2 Mar 2009)*
2435

    
2436
- More documentation updates, now all docs should be more-or-less
2437
  up-to-date
2438
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2439
  etc.)
2440
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2441
  and KVM)
2442
- Fix an issue related to $libdir/run/ganeti and cluster creation
2443

    
2444

    
2445
Version 2.0 beta2
2446
-----------------
2447

    
2448
*(Released Thu, 19 Feb 2009)*
2449

    
2450
- Xen PVM and KVM have switched the default value for the instance root
2451
  disk to the first partition on the first drive, instead of the whole
2452
  drive; this means that the OS installation scripts must be changed
2453
  accordingly
2454
- Man pages have been updated
2455
- RAPI has been switched by default to HTTPS, and the exported functions
2456
  should all work correctly
2457
- RAPI v1 has been removed
2458
- Many improvements to the KVM hypervisor
2459
- Block device errors are now better reported
2460
- Many other bugfixes and small improvements
2461

    
2462

    
2463
Version 2.0 beta1
2464
-----------------
2465

    
2466
*(Released Mon, 26 Jan 2009)*
2467

    
2468
- Version 2 is a general rewrite of the code and therefore the
2469
  differences are too many to list, see the design document for 2.0 in
2470
  the ``doc/`` subdirectory for more details
2471
- In this beta version there is not yet a migration path from 1.2 (there
2472
  will be one in the final 2.0 release)
2473
- A few significant changes are:
2474

    
2475
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2476
    various ``gnt-*`` commands are just front-ends to it
2477
  - all the commands are entered into, and executed from a job queue,
2478
    see the ``gnt-job(8)`` manpage
2479
  - the RAPI daemon supports read-write operations, secured by basic
2480
    HTTP authentication on top of HTTPS
2481
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2482
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2483
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2484
  - DRBD devices are using statically allocated minor numbers, which
2485
    will be assigned to existing instances during the migration process
2486
  - there is support for both Xen PVM and Xen HVM instances running on
2487
    the same cluster
2488
  - KVM virtualization is supported too
2489
  - file-based storage has been implemented, which means that it is
2490
    possible to run the cluster without LVM and DRBD storage, for
2491
    example using a shared filesystem exported from shared storage (and
2492
    still have live migration)
2493

    
2494

    
2495
Version 1.2.7
2496
-------------
2497

    
2498
*(Released Tue, 13 Jan 2009)*
2499

    
2500
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2501
- Reuse the old instance mac address by default on instance import, if
2502
  the instance name is the same.
2503
- Handle situations in which the node info rpc returns incomplete
2504
  results (issue 46)
2505
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2506
- Improved version of batcher:
2507

    
2508
  - state file support
2509
  - instance mac address support
2510
  - support for HVM clusters/instances
2511

    
2512
- Add an option to show the number of cpu sockets and nodes in
2513
  ``gnt-node list``
2514
- Support OSes that handle more than one version of the OS api (but do
2515
  not change the current API in any other way)
2516
- Fix ``gnt-node migrate``
2517
- ``gnt-debug`` man page
2518
- Fixes various more typos and small issues
2519
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2520

    
2521

    
2522
Version 1.2.6
2523
-------------
2524

    
2525
*(Released Wed, 24 Sep 2008)*
2526

    
2527
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2528
  type of disk exported to fully virtualized instances.
2529
- provide access to the serial console of HVM instances
2530
- instance auto_balance flag, set by default. If turned off it will
2531
  avoid warnings on cluster verify if there is not enough memory to fail
2532
  over an instance. in the future it will prevent automatically failing
2533
  it over when we will support that.
2534
- batcher tool for instance creation, see ``tools/README.batcher``
2535
- ``gnt-instance reinstall --select-os`` to interactively select a new
2536
  operating system when reinstalling an instance.
2537
- when changing the memory amount on instance modify a check has been
2538
  added that the instance will be able to start. also warnings are
2539
  emitted if the instance will not be able to fail over, if auto_balance
2540
  is true.
2541
- documentation fixes
2542
- sync fields between ``gnt-instance list/modify/add/import``
2543
- fix a race condition in drbd when the sync speed was set after giving
2544
  the device a remote peer.
2545

    
2546

    
2547
Version 1.2.5
2548
-------------
2549

    
2550
*(Released Tue, 22 Jul 2008)*
2551

    
2552
- note: the allowed size and number of tags per object were reduced
2553
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2554
- fixed twisted 8.x compatibility
2555
- fixed ``gnt-instance replace-disks`` with iallocator
2556
- add TCP keepalives on twisted connections to detect restarted nodes
2557
- disk increase support, see ``gnt-instance grow-disk``
2558
- implement bulk node/instance query for RAPI
2559
- add tags in node/instance listing (optional)
2560
- experimental migration (and live migration) support, read the man page
2561
  for ``gnt-instance migrate``
2562
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2563
  has some small improvements in handling its state file
2564

    
2565

    
2566
Version 1.2.4
2567
-------------
2568

    
2569
*(Released Fri, 13 Jun 2008)*
2570

    
2571
- Experimental readonly, REST-based remote API implementation;
2572
  automatically started on master node, TCP port 5080, if enabled by
2573
  ``--enable-rapi`` parameter to configure script.
2574
- Instance allocator support. Add and import instance accept a
2575
  ``--iallocator`` parameter, and call that instance allocator to decide
2576
  which node to use for the instance. The iallocator document describes
2577
  what's expected from an allocator script.
2578
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2579
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2580
  node is lost there is still enough memory to fail over the instances
2581
  that reside on it.
2582
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2583
  ``gnt-cluster verify``, to check for site-specific compliance. All the
2584
  hooks will run, and their output, if any, will be displayed. Any
2585
  failing hook will make the verification return an error value.
2586
- ``gnt-cluster verify`` now checks that its peers are reachable on the
2587
  primary and secondary interfaces
2588
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2589
  that is still declared as part of the cluster and has failed.
2590
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
2591
  specifying output fields, that just adds the chosen fields to the
2592
  default ones.
2593
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
2594
  export from the filesystem.
2595
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2596
  have been added. Using them you can enable/disable acpi and pae
2597
  support, and specify a path for a cd image to be exported to the
2598
  instance. These parameters as the name suggest only work on HVM
2599
  clusters.
2600
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2601
  PAE support will be set to the previously hardcoded values, but the
2602
  (previously hardcoded) path to the CDROM ISO image will be unset and
2603
  if required, needs to be set manually with ``gnt-instance modify``
2604
  after the upgrade.
2605
- The address to which an instance's VNC console is bound is now
2606
  selectable per-instance, rather than being cluster wide. Of course
2607
  this only applies to instances controlled via VNC, so currently just
2608
  applies to HVM clusters.
2609

    
2610

    
2611
Version 1.2.3
2612
-------------
2613

    
2614
*(Released Mon, 18 Feb 2008)*
2615

    
2616
- more tweaks to the disk activation code (especially helpful for DRBD)
2617
- change the default ``gnt-instance list`` output format, now there is
2618
  one combined status field (see the manpage for the exact values this
2619
  field will have)
2620
- some more fixes for the mac export to hooks change
2621
- make Ganeti not break with DRBD 8.2.x (which changed the version
2622
  format in ``/proc/drbd``) (issue 24)
2623
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2624
  template, allowing migration from DRBD0.7+MD to DRBD8
2625

    
2626

    
2627
Version 1.2.2
2628
-------------
2629

    
2630
*(Released Wed, 30 Jan 2008)*
2631

    
2632
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
2633
  support (issue 23)
2634
- add command aliases infrastructure and a few aliases
2635
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
2636
  man pages and the ``--help`` option of ``gnt-node
2637
  list``/``gnt-instance list``
2638
- fix ``gnt-backup list`` with down nodes (issue 21)
2639
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
2640
- fix the dist archive and add a check for including svn/git files in
2641
  the future
2642
- some developer-related changes: improve the burnin and the QA suite,
2643
  add an upload script for testing during development
2644

    
2645

    
2646
Version 1.2.1
2647
-------------
2648

    
2649
*(Released Wed, 16 Jan 2008)*
2650

    
2651
- experimental HVM support, read the install document, section
2652
  "Initializing the cluster"
2653
- allow for the PVM hypervisor per-instance kernel and initrd paths
2654
- add a new command ``gnt-cluster verify-disks`` which uses a new
2655
  algorithm to improve the reconnection of the DRBD pairs if the device
2656
  on the secondary node has gone away
2657
- make logical volume code auto-activate LVs at disk activation time
2658
- slightly improve the speed of activating disks
2659
- allow specification of the MAC address at instance creation time, and
2660
  changing it later via ``gnt-instance modify``
2661
- fix handling of external commands that generate lots of output on
2662
  stderr
2663
- update documentation with regard to minimum version of DRBD8 supported
2664

    
2665

    
2666
Version 1.2.0
2667
-------------
2668

    
2669
*(Released Tue, 4 Dec 2007)*
2670

    
2671
- Log the ``xm create`` output to the node daemon log on failure (to
2672
  help diagnosing the error)
2673
- In debug mode, log all external commands output if failed to the logs
2674
- Change parsing of lvm commands to ignore stderr
2675

    
2676

    
2677
Version 1.2 beta3
2678
-----------------
2679

    
2680
*(Released Wed, 28 Nov 2007)*
2681

    
2682
- Another round of updates to the DRBD 8 code to deal with more failures
2683
  in the replace secondary node operation
2684
- Some more logging of failures in disk operations (lvm, drbd)
2685
- A few documentation updates
2686
- QA updates
2687

    
2688

    
2689
Version 1.2 beta2
2690
-----------------
2691

    
2692
*(Released Tue, 13 Nov 2007)*
2693

    
2694
- Change configuration file format from Python's Pickle to JSON.
2695
  Upgrading is possible using the cfgupgrade utility.
2696
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
2697
  faster replace disks and is more stable (DRBD 8 has many improvements
2698
  compared to DRBD 0.7)
2699
- Added command line tags support (see man pages for ``gnt-instance``,
2700
  ``gnt-node``, ``gnt-cluster``)
2701
- Added instance rename support
2702
- Added multi-instance startup/shutdown
2703
- Added cluster rename support
2704
- Added ``gnt-node evacuate`` to simplify some node operations
2705
- Added instance reboot operation that can speedup reboot as compared to
2706
  stop and start
2707
- Soften the requirement that hostnames are in FQDN format
2708
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
2709
  reboots
2710
- Removed dependency on debian's patched fping that uses the
2711
  non-standard ``-S`` option
2712
- Now the OS definitions are searched for in multiple, configurable
2713
  paths (easier for distros to package)
2714
- Some changes to the hooks infrastructure (especially the new
2715
  post-configuration update hook)
2716
- Other small bugfixes
2717

    
2718
.. vim: set textwidth=72 syntax=rst :
2719
.. Local Variables:
2720
.. mode: rst
2721
.. fill-column: 72
2722
.. End: