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News
2
====
3

    
4

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

    
8
*(unreleased)*
9

    
10
- The minimum Python version needed to run Ganeti is now 2.6.
11
- The :doc:`Remote API <rapi>` daemon now supports a command line flag
12
  to always require authentication, ``--require-authentication``. It can
13
  be specified in ``$sysconfdir/default/ganeti``.
14
- A new cluster attribute 'enabled_disk_templates' is introduced. It will
15
  be used to manage the disk templates to be used by instances in the cluster.
16
  Initially, it will be set to a list that includes plain, drbd, if they were
17
  enabled by specifying a volume group name, and file and sharedfile, if those
18
  were enabled at configure time. Additionally, it will include all disk
19
  templates that are currently used by instances. The order of disk templates
20
  will be based on Ganeti's history of supporting them. In the future, the
21
  first entry of the list will be used as a default disk template on instance
22
  creation.
23
- ``cfgupgrade`` now supports a ``--downgrade`` option to bring the
24
  configuration back to the previous stable version.
25

    
26

    
27
Version 2.7.0 rc1
28
-----------------
29

    
30
*(unreleased)*
31

    
32
- Fix hail to verify disk instance policies on a per-disk basis (Issue 418).
33

    
34

    
35
Version 2.7.0 beta2
36
-------------------
37

    
38
*(Released Tue, 2 Apr 2013)*
39

    
40
- Networks no longer have a "type" slot, since this information was
41
  unused in Ganeti: instead of it tags should be used.
42
- Diskless instances are now externally mirrored (Issue 237). This for
43
  now has only been tested in conjunction with explicit target nodes for
44
  migration/failover.
45
- The rapi client now has a ``target_node`` option to MigrateInstance.
46
- Fix early exit return code for hbal (Issue 386).
47
- Fix ``gnt-instance migrate/failover -n`` (Issue 396).
48
- Fix ``rbd showmapped`` output parsing (Issue 312).
49
- Networks are now referenced indexed by UUID, rather than name. This
50
  will require running cfgupgrade, from 2.7.0beta1, if networks are in
51
  use.
52
- The OS environment now includes network information.
53
- Deleting of a network is now disallowed if any instance nic is using
54
  it, to prevent dangling references.
55
- External storage is now documented in man pages.
56
- The exclusive_storage flag can now only be set at nodegroup level.
57
- Hbal can now submit an explicit priority with its jobs.
58
- Many network related locking fixes.
59
- Bump up the required pylint version to 0.25.1.
60
- Fix the ``no_remember`` option in RAPI client.
61
- Many ipolicy related tests, qa, and fixes.
62
- Many documentation improvements and fixes.
63
- Fix building with ``--disable-file-storage``.
64
- Fix ``-q`` option in htools, which was broken if passed more than
65
  once.
66
- Some haskell/python interaction improvements and fixes.
67
- Fix iallocator in case of missing LVM storage.
68
- Fix confd config load in case of ``--no-lvm-storage``.
69
- The confd/query functionality is now mentioned in the security
70
  documentation.
71

    
72

    
73
Version 2.7.0 beta1
74
-------------------
75

    
76
*(Released Wed, 6 Feb 2013)*
77

    
78
- ``gnt-instance batch-create`` has been changed to use the bulk create
79
  opcode from Ganeti. This lead to incompatible changes in the format of
80
  the JSON file. It's now not a custom dict anymore but a dict
81
  compatible with the ``OpInstanceCreate`` opcode.
82
- Parent directories for file storage need to be listed in
83
  ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
84
  write the file automatically based on old configuration values, but it
85
  can not distribute it across all nodes and the file contents should be
86
  verified. Use ``gnt-cluster copyfile
87
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
88
  upgraded. The reason for requiring this list of paths now is that
89
  before it would have been possible to inject new paths via RPC,
90
  allowing files to be created in arbitrary locations. The RPC protocol
91
  is protected using SSL/X.509 certificates, but as a design principle
92
  Ganeti does not permit arbitrary paths to be passed.
93
- The parsing of the variants file for OSes (see
94
  :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
95
  lines and comment lines (starting with ``#``) are ignored for better
96
  readability.
97
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
98
  longer available. ``gnt-node add`` now invokes a new tool on the
99
  destination node, named ``prepare-node-join``, to configure the SSH
100
  daemon. Paramiko is no longer necessary to configure nodes' SSH
101
  daemons via ``gnt-node add``.
102
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
103
  for RAPI users. It allows granting permissions to query for
104
  information to a specific user without giving
105
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
106
- A new tool named ``node-cleanup`` has been added. It cleans remains of
107
  a cluster from a machine by stopping all daemons, removing
108
  certificates and ssconf files. Unless the ``--no-backup`` option is
109
  given, copies of the certificates are made.
110
- Draining (``gnt-cluster queue drain``) and un-draining the job queue
111
  (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
112
  the flag is not reset after a master failover.
113
- Instance creations now support the use of opportunistic locking,
114
  potentially speeding up the (parallel) creation of multiple instances.
115
  This feature is currently only available via the :doc:`RAPI
116
  <rapi>` interface and when an instance allocator is used. If the
117
  ``opportunistic_locking`` parameter is set the opcode will try to
118
  acquire as many locks as possible, but will not wait for any locks
119
  held by other opcodes. If not enough resources can be found to
120
  allocate the instance, the temporary error code
121
  :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
122
  retried thereafter, with or without opportunistic locking.
123
- The functionality for allocating multiple instances at once has been
124
  overhauled and is now also available through :doc:`RAPI <rapi>`.
125
- Man pages can now be included when the documentation is built, in
126
  which case the output is in ``doc/man-html``. The configure-time
127
  option is ``--enable-manpages-in-doc``. Sphinx 1.0 or higher is
128
  required.
129
- A new htool called ``hroller`` helps scheduling parallel shutdown of
130
  nodes on clusters where all instances are shut down, but without ever
131
  rebooting both primary and secondary node for an instance at the same
132
  time.
133
- Queries not needing locks or RPC access to the node can now be
134
  performed by the confd daemon, making them independent from jobs, and
135
  thus faster to execute. This is selectable at configure time.
136
- The KVM hypervisor has been updated with many new hypervisor
137
  parameters, including a generic one for passing arbitrary command line
138
  values. See a complete list in :manpage:`gnt-instance(8)`.
139
- A new tool, called ``mon-collector``, is the stand-alone executor of
140
  the data collectors for a monitoring system. As of this version, it
141
  just includes the DRBD data collector, that can be executed by calling
142
  ``mon-collector`` using the ``drbd`` parameter. See
143
  :manpage:`mon-collector(7)`.
144
- New ``exclusive-storage`` node parameter added. When it's set to true,
145
  physical disks are assigned in an exclusive fashion to instances, as
146
  documented in :doc:`Partitioned Ganeti <design-partitioned>`.
147
  Currently, only instances using the ``plain`` disk template are
148
  supported.
149
- New network management functionality to support automatic allocation
150
  of IP addresses and managing of network parameters. See
151
  :manpage:`gnt-network(8)` for more details.
152
- New external storage backend, to allow managing arbitrary storage
153
  systems external to the cluster. See
154
  :manpage:`ganeti-extstorage-interface(7)`.
155
- Instance renames of LVM-based instances will now update the LV tags
156
  (which can be used to recover the instance-to-LV mapping in case of
157
  emergencies)
158
- ``hbal`` will now exit with status 0 if, during job execution over
159
  LUXI, early exit has been requested and all jobs are successful;
160
  before, exit status 1 was used, which cannot be differentiated from
161
  "job error" case
162

    
163

    
164
Version 2.6.2
165
-------------
166

    
167
*(Released Fri, 21 Dec 2012)*
168

    
169
Important behaviour change: hbal won't rebalance anymore instances which
170
have the ``auto_balance`` attribute set to false. This was the intention
171
all along, but until now it only skipped those from the N+1 memory
172
reservation (DRBD-specific).
173

    
174
A significant number of bug fixes in this release:
175

    
176
- Fixed disk adoption interaction with ipolicy checks.
177
- Fixed networking issues when instances are started, stopped or
178
  migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
179
- Fixed the warning in cluster verify for shared storage instances not
180
  being redundant.
181
- Fixed removal of storage directory on shared file storage (issue 262).
182
- Fixed validation of LVM volume group name in OpClusterSetParams
183
  (``gnt-cluster modify``) (issue 285).
184
- Fixed runtime memory increases (``gnt-instance modify -m``).
185
- Fixed live migration under Xen's ``xl`` mode.
186
- Fixed ``gnt-instance console`` with ``xl``.
187
- Fixed building with newer Haskell compiler/libraries.
188
- Fixed PID file writing in Haskell daemons (confd); this prevents
189
  restart issues if confd was launched manually (outside of
190
  ``daemon-util``) while another copy of it was running
191
- Fixed a type error when doing live migrations with KVM (issue 297) and
192
  the error messages for failing migrations have been improved.
193
- Fixed opcode validation for the out-of-band commands (``gnt-node
194
  power``).
195
- Fixed a type error when unsetting OS hypervisor parameters (issue
196
  311); now it's possible to unset all OS-specific hypervisor
197
  parameters.
198
- Fixed the ``dry-run`` mode for many operations: verification of
199
  results was over-zealous but didn't take into account the ``dry-run``
200
  operation, resulting in "wrong" failures.
201
- Fixed bash completion in ``gnt-job list`` when the job queue has
202
  hundreds of entries; especially with older ``bash`` versions, this
203
  results in significant CPU usage.
204

    
205
And lastly, a few other improvements have been made:
206

    
207
- Added option to force master-failover without voting (issue 282).
208
- Clarified error message on lock conflict (issue 287).
209
- Logging of newly submitted jobs has been improved (issue 290).
210
- Hostname checks have been made uniform between instance rename and
211
  create (issue 291).
212
- The ``--submit`` option is now supported by ``gnt-debug delay``.
213
- Shutting down the master daemon by sending SIGTERM now stops it from
214
  processing jobs waiting for locks; instead, those jobs will be started
215
  once again after the master daemon is started the next time (issue
216
  296).
217
- Support for Xen's ``xl`` program has been improved (besides the fixes
218
  above).
219
- Reduced logging noise in the Haskell confd daemon (only show one log
220
  entry for each config reload, instead of two).
221
- Several man page updates and typo fixes.
222

    
223

    
224
Version 2.6.1
225
-------------
226

    
227
*(Released Fri, 12 Oct 2012)*
228

    
229
A small bugfix release. Among the bugs fixed:
230

    
231
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
232
  made the command unusable.
233
- Commands that issue many jobs don't fail anymore just because some jobs
234
  take so long that other jobs are archived.
235
- Failures during ``gnt-instance reinstall`` are reflected by the exit
236
  status.
237
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
238
  DRBD is enabled.
239
- When ``always_failover`` is set, ``--allow-failover`` is not required
240
  in migrate commands anymore.
241
- ``bash_completion`` works even if extglob is disabled.
242
- Fixed bug with locks that made failover for RDB-based instances fail.
243
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
244
  a random node instead of one based on the allocator metric.
245
- Support for newer versions of pylint and pep8.
246
- Hail doesn't fail anymore when trying to add an instance of type
247
  ``file``, ``sharedfile`` or ``rbd``.
248
- Added new Makefile target to rebuild the whole distribution, so that
249
  all files are included.
250

    
251

    
252
Version 2.6.0
253
-------------
254

    
255
*(Released Fri, 27 Jul 2012)*
256

    
257

    
258
.. attention:: The ``LUXI`` protocol has been made more consistent
259
   regarding its handling of command arguments. This, however, leads to
260
   incompatibility issues with previous versions. Please ensure that you
261
   restart Ganeti daemons soon after the upgrade, otherwise most
262
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
263
   pausing/resuming the watcher, cancelling and archiving jobs, querying
264
   the cluster configuration) will fail.
265

    
266

    
267
New features
268
~~~~~~~~~~~~
269

    
270
Instance run status
271
+++++++++++++++++++
272

    
273
The current ``admin_up`` field, which used to denote whether an instance
274
should be running or not, has been removed. Instead, ``admin_state`` is
275
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
276

    
277
The rational behind this is that an instance being “down” can have
278
different meanings:
279

    
280
- it could be down during a reboot
281
- it could be temporarily be down for a reinstall
282
- or it could be down because it is deprecated and kept just for its
283
  disk
284

    
285
The previous Boolean state was making it difficult to do capacity
286
calculations: should Ganeti reserve memory for a down instance? Now, the
287
tri-state field makes it clear:
288

    
289
- in ``up`` and ``down`` state, all resources are reserved for the
290
  instance, and it can be at any time brought up if it is down
291
- in ``offline`` state, only disk space is reserved for it, but not
292
  memory or CPUs
293

    
294
The field can have an extra use: since the transition between ``up`` and
295
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
296
transition between ``offline`` and ``down`` is done via ``gnt-instance
297
modify``, it is possible to given different rights to users. For
298
example, owners of an instance could be allowed to start/stop it, but
299
not transition it out of the offline state.
300

    
301
Instance policies and specs
302
+++++++++++++++++++++++++++
303

    
304
In previous Ganeti versions, an instance creation request was not
305
limited on the minimum size and on the maximum size just by the cluster
306
resources. As such, any policy could be implemented only in third-party
307
clients (RAPI clients, or shell wrappers over ``gnt-*``
308
tools). Furthermore, calculating cluster capacity via ``hspace`` again
309
required external input with regards to instance sizes.
310

    
311
In order to improve these workflows and to allow for example better
312
per-node group differentiation, we introduced instance specs, which
313
allow declaring:
314

    
315
- minimum instance disk size, disk count, memory size, cpu count
316
- maximum values for the above metrics
317
- and “standard” values (used in ``hspace`` to calculate the standard
318
  sized instances)
319

    
320
The minimum/maximum values can be also customised at node-group level,
321
for example allowing more powerful hardware to support bigger instance
322
memory sizes.
323

    
324
Beside the instance specs, there are a few other settings belonging to
325
the instance policy framework. It is possible now to customise, per
326
cluster and node-group:
327

    
328
- the list of allowed disk templates
329
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
330
- the maximum ratio of instance to spindles (see below for more
331
  information) for local storage
332

    
333
All these together should allow all tools that talk to Ganeti to know
334
what are the ranges of allowed values for instances and the
335
over-subscription that is allowed.
336

    
337
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
338
instance configuration, and the physical CPU configuration from the
339
node. For the spindle ratios however, we didn't track before these
340
values, so new parameters have been added:
341

    
342
- a new node parameter ``spindle_count``, defaults to 1, customisable at
343
  node group or node level
344
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
345

    
346
Note that spindles in this context doesn't need to mean actual
347
mechanical hard-drives; it's just a relative number for both the node
348
I/O capacity and instance I/O consumption.
349

    
350
Instance migration behaviour
351
++++++++++++++++++++++++++++
352

    
353
While live-migration is in general desirable over failover, it is
354
possible that for some workloads it is actually worse, due to the
355
variable time of the “suspend” phase during live migration.
356

    
357
To allow the tools to work consistently over such instances (without
358
having to hard-code instance names), a new backend parameter
359
``always_failover`` has been added to control the migration/failover
360
behaviour. When set to True, all migration requests for an instance will
361
instead fall-back to failover.
362

    
363
Instance memory ballooning
364
++++++++++++++++++++++++++
365

    
366
Initial support for memory ballooning has been added. The memory for an
367
instance is no longer fixed (backend parameter ``memory``), but instead
368
can vary between minimum and maximum values (backend parameters
369
``minmem`` and ``maxmem``). Currently we only change an instance's
370
memory when:
371

    
372
- live migrating or failing over and instance and the target node
373
  doesn't have enough memory
374
- user requests changing the memory via ``gnt-instance modify
375
  --runtime-memory``
376

    
377
Instance CPU pinning
378
++++++++++++++++++++
379

    
380
In order to control the use of specific CPUs by instance, support for
381
controlling CPU pinning has been added for the Xen, HVM and LXC
382
hypervisors. This is controlled by a new hypervisor parameter
383
``cpu_mask``; details about possible values for this are in the
384
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
385
VCPU-to-CPU mapping) form will work well only when all nodes in your
386
cluster have the same amount of CPUs.
387

    
388
Disk parameters
389
+++++++++++++++
390

    
391
Another area in which Ganeti was not customisable were the parameters
392
used for storage configuration, e.g. how many stripes to use for LVM,
393
DRBD resync configuration, etc.
394

    
395
To improve this area, we've added disks parameters, which are
396
customisable at cluster and node group level, and which allow to
397
specify various parameters for disks (DRBD has the most parameters
398
currently), for example:
399

    
400
- DRBD resync algorithm and parameters (e.g. speed)
401
- the default VG for meta-data volumes for DRBD
402
- number of stripes for LVM (plain disk template)
403
- the RBD pool
404

    
405
These parameters can be modified via ``gnt-cluster modify -D …`` and
406
``gnt-group modify -D …``, and are used at either instance creation (in
407
case of LVM stripes, for example) or at disk “activation” time
408
(e.g. resync speed).
409

    
410
Rados block device support
411
++++++++++++++++++++++++++
412

    
413
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
414
denoted by the ``rbd`` disk template type. This is considered
415
experimental, feedback is welcome. For details on configuring it, see
416
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
417

    
418
Master IP setup
419
+++++++++++++++
420

    
421
The existing master IP functionality works well only in simple setups (a
422
single network shared by all nodes); however, if nodes belong to
423
different networks, then the ``/32`` setup and lack of routing
424
information is not enough.
425

    
426
To allow the master IP to function well in more complex cases, the
427
system was reworked as follows:
428

    
429
- a master IP netmask setting has been added
430
- the master IP activation/turn-down code was moved from the node daemon
431
  to a separate script
432
- whether to run the Ganeti-supplied master IP script or a user-supplied
433
  on is a ``gnt-cluster init`` setting
434

    
435
Details about the location of the standard and custom setup scripts are
436
in the man page :manpage:`gnt-cluster(8)`; for information about the
437
setup script protocol, look at the Ganeti-supplied script.
438

    
439
SPICE support
440
+++++++++++++
441

    
442
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
443
improved.
444

    
445
It is now possible to use TLS-protected connections, and when renewing
446
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
447
it is now possible to specify spice or spice CA certificates. Also, it
448
is possible to configure a password for SPICE sessions via the
449
hypervisor parameter ``spice_password_file``.
450

    
451
There are also new parameters to control the compression and streaming
452
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
453
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
454
for the spice parameters.
455

    
456
Lastly, it is now possible to see the SPICE connection information via
457
``gnt-instance console``.
458

    
459
OVF converter
460
+++++++++++++
461

    
462
A new tool (``tools/ovfconverter``) has been added that supports
463
conversion between Ganeti and the `Open Virtualization Format
464
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
465
from).
466

    
467
This relies on the ``qemu-img`` tool to convert the disk formats, so the
468
actual compatibility with other virtualization solutions depends on it.
469

    
470
Confd daemon changes
471
++++++++++++++++++++
472

    
473
The configuration query daemon (``ganeti-confd``) is now optional, and
474
has been rewritten in Haskell; whether to use the daemon at all, use the
475
Python (default) or the Haskell version is selectable at configure time
476
via the ``--enable-confd`` parameter, which can take one of the
477
``haskell``, ``python`` or ``no`` values. If not used, disabling the
478
daemon will result in a smaller footprint; for larger systems, we
479
welcome feedback on the Haskell version which might become the default
480
in future versions.
481

    
482
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
483
daemon running. The Python version doesn't implement the new call.
484

    
485

    
486
User interface changes
487
~~~~~~~~~~~~~~~~~~~~~~
488

    
489
We have replaced the ``--disks`` option of ``gnt-instance
490
replace-disks`` with a more flexible ``--disk`` option, which allows
491
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
492
disk size and mode can be changed upon recreation (via ``gnt-instance
493
recreate-disks``, which accepts the same ``--disk`` option).
494

    
495
As many people are used to a ``show`` command, we have added that as an
496
alias to ``info`` on all ``gnt-*`` commands.
497

    
498
The ``gnt-instance grow-disk`` command has a new mode in which it can
499
accept the target size of the disk, instead of the delta; this can be
500
more safe since two runs in absolute mode will be idempotent, and
501
sometimes it's also easier to specify the desired size directly.
502

    
503
Also the handling of instances with regard to offline secondaries has
504
been improved. Instance operations should not fail because one of it's
505
secondary nodes is offline, even though it's safe to proceed.
506

    
507
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
508
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
509
minors to instance name.
510

    
511
API changes
512
~~~~~~~~~~~
513

    
514
RAPI coverage has improved, with (for example) new resources for
515
recreate-disks, node power-cycle, etc.
516

    
517
Compatibility
518
~~~~~~~~~~~~~
519

    
520
There is partial support for ``xl`` in the Xen hypervisor; feedback is
521
welcome.
522

    
523
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
524
whether to still support Python 2.4 or move to Python 2.6 as minimum
525
required version.
526

    
527
Support for Fedora has been slightly improved; the provided example
528
init.d script should work better on it and the INSTALL file should
529
document the needed dependencies.
530

    
531
Internal changes
532
~~~~~~~~~~~~~~~~
533

    
534
The deprecated ``QueryLocks`` LUXI request has been removed. Use
535
``Query(what=QR_LOCK, ...)`` instead.
536

    
537
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
538
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
539
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
540
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
541
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
542

    
543
RAPI client: ``CertificateError`` now derives from
544
``GanetiApiError``. This should make it more easy to handle Ganeti
545
errors.
546

    
547
Deprecation warnings due to PyCrypto/paramiko import in
548
``tools/setup-ssh`` have been silenced, as usually they are safe; please
549
make sure to run an up-to-date paramiko version, if you use this tool.
550

    
551
The QA scripts now depend on Python 2.5 or above (the main code base
552
still works with Python 2.4).
553

    
554
The configuration file (``config.data``) is now written without
555
indentation for performance reasons; if you want to edit it, it can be
556
re-formatted via ``tools/fmtjson``.
557

    
558
A number of bugs has been fixed in the cluster merge tool.
559

    
560
``x509`` certification verification (used in import-export) has been
561
changed to allow the same clock skew as permitted by the cluster
562
verification. This will remove some rare but hard to diagnose errors in
563
import-export.
564

    
565

    
566
Version 2.6.0 rc4
567
-----------------
568

    
569
*(Released Thu, 19 Jul 2012)*
570

    
571
Very few changes from rc4 to the final release, only bugfixes:
572

    
573
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
574
  instance, fix CDROM booting for KVM instances)
575
- fixed node group modification of node parameters
576
- fixed issue in LUClusterVerifyGroup with multi-group clusters
577
- fixed generation of bash completion to ensure a stable ordering
578
- fixed a few typos
579

    
580

    
581
Version 2.6.0 rc3
582
-----------------
583

    
584
*(Released Fri, 13 Jul 2012)*
585

    
586
Third release candidate for 2.6. The following changes were done from
587
rc3 to rc4:
588

    
589
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
590
- Fixed an inconsistency in the LUXI protocol with the provided
591
  arguments (NOT backwards compatible)
592
- Fixed a bug with node groups ipolicy where ``min`` was greater than
593
  the cluster ``std`` value
594
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
595
  easier instance debugging on nodes (requires ``hconfd`` to work)
596

    
597

    
598
Version 2.6.0 rc2
599
-----------------
600

    
601
*(Released Tue, 03 Jul 2012)*
602

    
603
Second release candidate for 2.6. The following changes were done from
604
rc2 to rc3:
605

    
606
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
607
  master candidates
608
- Fixed a RAPI regression on missing beparams/memory
609
- Fixed redistribution of files on offline nodes
610
- Added possibility to run activate-disks even though secondaries are
611
  offline. With this change it relaxes also the strictness on some other
612
  commands which use activate disks internally:
613
  * ``gnt-instance start|reboot|rename|backup|export``
614
- Made it possible to remove safely an instance if its secondaries are
615
  offline
616
- Made it possible to reinstall even though secondaries are offline
617

    
618

    
619
Version 2.6.0 rc1
620
-----------------
621

    
622
*(Released Mon, 25 Jun 2012)*
623

    
624
First release candidate for 2.6. The following changes were done from
625
rc1 to rc2:
626

    
627
- Fixed bugs with disk parameters and ``rbd`` templates as well as
628
  ``instance_os_add``
629
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
630
  behaviour. It supports now the modify operation
631
- ``hcheck`` implemented to analyze cluster health and possibility of
632
  improving health by rebalance
633
- ``hbal`` has been improved in dealing with split instances
634

    
635

    
636
Version 2.6.0 beta2
637
-------------------
638

    
639
*(Released Mon, 11 Jun 2012)*
640

    
641
Second beta release of 2.6. The following changes were done from beta2
642
to rc1:
643

    
644
- Fixed ``daemon-util`` with non-root user models
645
- Fixed creation of plain instances with ``--no-wait-for-sync``
646
- Fix wrong iv_names when running ``cfgupgrade``
647
- Export more information in RAPI group queries
648
- Fixed bug when changing instance network interfaces
649
- Extended burnin to do NIC changes
650
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
651
- Changed default for DRBD barriers
652
- Fixed DRBD error reporting for syncer rate
653
- Verify the options on disk parameters
654

    
655
And of course various fixes to documentation and improved unittests and
656
QA.
657

    
658

    
659
Version 2.6.0 beta1
660
-------------------
661

    
662
*(Released Wed, 23 May 2012)*
663

    
664
First beta release of 2.6. The following changes were done from beta1 to
665
beta2:
666

    
667
- integrated patch for distributions without ``start-stop-daemon``
668
- adapted example init.d script to work on Fedora
669
- fixed log handling in Haskell daemons
670
- adapted checks in the watcher for pycurl linked against libnss
671
- add partial support for ``xl`` instead of ``xm`` for Xen
672
- fixed a type issue in cluster verification
673
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
674
  clusters)
675

    
676
Plus integrated fixes from the 2.5 branch:
677

    
678
- fixed ``kvm-ifup`` to use ``/bin/bash``
679
- fixed parallel build failures
680
- KVM live migration when using a custom keymap
681

    
682

    
683
Version 2.5.2
684
-------------
685

    
686
*(Released Tue, 24 Jul 2012)*
687

    
688
A small bugfix release, with no new features:
689

    
690
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
691
  different default shell (e.g. Debian, Ubuntu)
692
- fixed KVM startup and live migration with a custom keymap (fixes Issue
693
  243 and Debian bug #650664)
694
- fixed compatibility with KVM versions that don't support multiple boot
695
  devices (fixes Issue 230 and Debian bug #624256)
696

    
697
Additionally, a few fixes were done to the build system (fixed parallel
698
build failures) and to the unittests (fixed race condition in test for
699
FileID functions, and the default enable/disable mode for QA test is now
700
customisable).
701

    
702

    
703
Version 2.5.1
704
-------------
705

    
706
*(Released Fri, 11 May 2012)*
707

    
708
A small bugfix release.
709

    
710
The main issues solved are on the topic of compatibility with newer LVM
711
releases:
712

    
713
- fixed parsing of ``lv_attr`` field
714
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
715
  the ``--force`` flag is needed
716

    
717
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
718
to accept kernel 3.x too (was hardcoded to 2.6.*).
719

    
720
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
721
of hook results and that also made display of other errors suboptimal
722
was fixed; the code behaves now like 2.4 and earlier.
723

    
724
Another change in 2.5, the cleanup of the OS scripts environment, is too
725
aggressive: it removed even the ``PATH`` variable, which requires the OS
726
scripts to *always* need to export it. Since this is a bit too strict,
727
we now export a minimal PATH, the same that we export for hooks.
728

    
729
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
730
integrated into this release.
731

    
732
Finally, a few other miscellaneous changes were done (no new features,
733
just small improvements):
734

    
735
- Fix ``gnt-group --help`` display
736
- Fix hardcoded Xen kernel path
737
- Fix grow-disk handling of invalid units
738
- Update synopsis for ``gnt-cluster repair-disk-sizes``
739
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
740

    
741

    
742
Version 2.5.0
743
-------------
744

    
745
*(Released Thu, 12 Apr 2012)*
746

    
747
Incompatible/important changes and bugfixes
748
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
749

    
750
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
751
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
752
  to match the underlying LUXI interface.
753
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
754
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
755
  not maintain backwards-compatibility as the underlying operation
756
  changed in an incompatible way. The RAPI client can talk to old
757
  servers, but it needs to be told so as the return value changed.
758
- When creating file-based instances via RAPI, the ``file_driver``
759
  parameter no longer defaults to ``loop`` and must be specified.
760
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
761
  ``link`` instead.
762
- Support for the undocumented and deprecated RAPI instance creation
763
  request format version 0 has been dropped. Use version 1, supported
764
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
765
- Pyparsing 1.4.6 or above is required, see :doc:`installation
766
  documentation <install>`.
767
- The "cluster-verify" hooks are now executed per group by the
768
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
769
  if you just run ``gnt-cluster verify``, which generates one opcode per
770
  group.
771
- The environment as passed to the OS scripts is cleared, and thus no
772
  environment variables defined in the node daemon's environment will be
773
  inherited by the scripts.
774
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
775
  deprecated.
776
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
777
  support operations involving multiple node groups.
778
- Offline nodes are ignored when failing over an instance.
779
- Support for KVM version 1.0, which changed the version reporting format
780
  from 3 to 2 digits.
781
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
782
  removal.
783
- ``Makefile`` is now compatible with Automake 1.11.2
784
- Includes all bugfixes made in the 2.4 series
785

    
786
New features
787
~~~~~~~~~~~~
788

    
789
- The ganeti-htools project has been merged into the ganeti-core source
790
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
791
- Implemented support for :doc:`shared storage <design-shared-storage>`.
792
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
793
  GPT-style partition tables (requires `parted
794
  <http://www.gnu.org/s/parted/>`_).
795
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
796
- Allowed adding tags on instance creation.
797
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
798
- Allow instances to be started in a paused state, enabling the user to
799
  see the complete console output on boot using the console.
800
- Added new hypervisor flag to control default reboot behaviour
801
  (``reboot_behavior``).
802
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
803
- Improved out-of-band management support:
804

    
805
  - Added ``gnt-node health`` command reporting the health status of
806
    nodes.
807
  - Added ``gnt-node power`` command to manage power status of nodes.
808
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
809

    
810
- Instance migration can fall back to failover if instance is not
811
  running.
812
- Filters can be used when listing nodes, instances, groups and locks;
813
  see :manpage:`ganeti(7)` manpage.
814
- Added post-execution status as variables to :doc:`hooks <hooks>`
815
  environment.
816
- Instance tags are exported/imported together with the instance.
817
- When given an explicit job ID, ``gnt-job info`` will work for archived
818
  jobs.
819
- Jobs can define dependencies on other jobs (not yet supported via
820
  RAPI or command line, but used by internal commands and usable via
821
  LUXI).
822

    
823
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
824
    dependencies.
825

    
826
- Instance failover is now available as a RAPI resource
827
  (``/2/instances/[instance_name]/failover``).
828
- ``gnt-instance info`` defaults to static information if primary node
829
  is offline.
830
- Opcodes have a new ``comment`` attribute.
831
- Added basic SPICE support to KVM hypervisor.
832
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
833

    
834
Node group improvements
835
~~~~~~~~~~~~~~~~~~~~~~~
836

    
837
- ``gnt-cluster verify`` has been modified to check groups separately,
838
  thereby improving performance.
839
- Node group support has been added to ``gnt-cluster verify-disks``,
840
  which now operates per node group.
841
- Watcher has been changed to work better with node groups.
842

    
843
  - One process and state file per node group.
844
  - Slow watcher in one group doesn't block other group's watcher.
845

    
846
- Added new command, ``gnt-group evacuate``, to move all instances in a
847
  node group to other groups.
848
- Added ``gnt-instance change-group`` to move an instance to another
849
  node group.
850
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
851
  per-group operations.
852
- Node groups can be tagged.
853
- Some operations switch from an exclusive to a shared lock as soon as
854
  possible.
855
- Instance's primary and secondary nodes' groups are now available as
856
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
857
  and ``snodes.group.uuid``).
858

    
859
Misc
860
~~~~
861

    
862
- Numerous updates to documentation and manpages.
863

    
864
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
865
    descriptions.
866
  - Some opcode/job results are now also documented, see :doc:`RAPI
867
    <rapi>`.
868

    
869
- A lockset's internal lock is now also visible in lock monitor.
870
- Log messages from job queue workers now contain information about the
871
  opcode they're processing.
872
- ``gnt-instance console`` no longer requires the instance lock.
873
- A short delay when waiting for job changes reduces the number of LUXI
874
  requests significantly.
875
- DRBD metadata volumes are overwritten with zeros during disk creation.
876
- Out-of-band commands no longer acquire the cluster lock in exclusive
877
  mode.
878
- ``devel/upload`` now uses correct permissions for directories.
879

    
880

    
881
Version 2.5.0 rc6
882
-----------------
883

    
884
*(Released Fri, 23 Mar 2012)*
885

    
886
This was the sixth release candidate of the 2.5 series.
887

    
888

    
889
Version 2.5.0 rc5
890
-----------------
891

    
892
*(Released Mon, 9 Jan 2012)*
893

    
894
This was the fifth release candidate of the 2.5 series.
895

    
896

    
897
Version 2.5.0 rc4
898
-----------------
899

    
900
*(Released Thu, 27 Oct 2011)*
901

    
902
This was the fourth release candidate of the 2.5 series.
903

    
904

    
905
Version 2.5.0 rc3
906
-----------------
907

    
908
*(Released Wed, 26 Oct 2011)*
909

    
910
This was the third release candidate of the 2.5 series.
911

    
912

    
913
Version 2.5.0 rc2
914
-----------------
915

    
916
*(Released Tue, 18 Oct 2011)*
917

    
918
This was the second release candidate of the 2.5 series.
919

    
920

    
921
Version 2.5.0 rc1
922
-----------------
923

    
924
*(Released Tue, 4 Oct 2011)*
925

    
926
This was the first release candidate of the 2.5 series.
927

    
928

    
929
Version 2.5.0 beta3
930
-------------------
931

    
932
*(Released Wed, 31 Aug 2011)*
933

    
934
This was the third beta release of the 2.5 series.
935

    
936

    
937
Version 2.5.0 beta2
938
-------------------
939

    
940
*(Released Mon, 22 Aug 2011)*
941

    
942
This was the second beta release of the 2.5 series.
943

    
944

    
945
Version 2.5.0 beta1
946
-------------------
947

    
948
*(Released Fri, 12 Aug 2011)*
949

    
950
This was the first beta release of the 2.5 series.
951

    
952

    
953
Version 2.4.5
954
-------------
955

    
956
*(Released Thu, 27 Oct 2011)*
957

    
958
- Fixed bug when parsing command line parameter values ending in
959
  backslash
960
- Fixed assertion error after unclean master shutdown
961
- Disable HTTP client pool for RPC, significantly reducing memory usage
962
  of master daemon
963
- Fixed queue archive creation with wrong permissions
964

    
965

    
966
Version 2.4.4
967
-------------
968

    
969
*(Released Tue, 23 Aug 2011)*
970

    
971
Small bug-fixes:
972

    
973
- Fixed documentation for importing with ``--src-dir`` option
974
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
975
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
976

    
977

    
978
Version 2.4.3
979
-------------
980

    
981
*(Released Fri, 5 Aug 2011)*
982

    
983
Many bug-fixes and a few small features:
984

    
985
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
986
  issues when you tried to add an instance with two MAC addresses in one
987
  request
988
- KVM: fixed per-instance stored UID value
989
- KVM: configure bridged NICs at migration start
990
- KVM: Fix a bug where instance will not start with never KVM versions
991
  (>= 0.14)
992
- Added OS search path to ``gnt-cluster info``
993
- Fixed an issue with ``file_storage_dir`` where you were forced to
994
  provide an absolute path, but the documentation states it is a
995
  relative path, the documentation was right
996
- Added a new parameter to instance stop/start called ``--no-remember``
997
  that will make the state change to not be remembered
998
- Implemented ``no_remember`` at RAPI level
999
- Improved the documentation
1000
- Node evacuation: don't call IAllocator if node is already empty
1001
- Fixed bug in DRBD8 replace disks on current nodes
1002
- Fixed bug in recreate-disks for DRBD instances
1003
- Moved assertion checking locks in ``gnt-instance replace-disks``
1004
  causing it to abort with not owning the right locks for some situation
1005
- Job queue: Fixed potential race condition when cancelling queued jobs
1006
- Fixed off-by-one bug in job serial generation
1007
- ``gnt-node volumes``: Fix instance names
1008
- Fixed aliases in bash completion
1009
- Fixed a bug in reopening log files after being sent a SIGHUP
1010
- Added a flag to burnin to allow specifying VCPU count
1011
- Bugfixes to non-root Ganeti configuration
1012

    
1013

    
1014
Version 2.4.2
1015
-------------
1016

    
1017
*(Released Thu, 12 May 2011)*
1018

    
1019
Many bug-fixes and a few new small features:
1020

    
1021
- Fixed a bug related to log opening failures
1022
- Fixed a bug in instance listing with orphan instances
1023
- Fixed a bug which prevented resetting the cluster-level node parameter
1024
  ``oob_program`` to the default
1025
- Many fixes related to the ``cluster-merge`` tool
1026
- Fixed a race condition in the lock monitor, which caused failures
1027
  during (at least) creation of many instances in parallel
1028
- Improved output for gnt-job info
1029
- Removed the quiet flag on some ssh calls which prevented debugging
1030
  failures
1031
- Improved the N+1 failure messages in cluster verify by actually
1032
  showing the memory values (needed and available)
1033
- Increased lock attempt timeouts so that when executing long operations
1034
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
1035
  too early and thus prevent the use of the 'fair' mechanism
1036
- Changed instance query data (``gnt-instance info``) to not acquire
1037
  locks unless needed, thus allowing its use on locked instance if only
1038
  static information is asked for
1039
- Improved behaviour with filesystems that do not support rename on an
1040
  opened file
1041
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
1042
  kept locks on all nodes during the wipe, which is unneeded
1043
- Fixed ``gnt-watcher`` handling of errors during hooks execution
1044
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
1045
  10GiB) which caused the wipe to fail right at the end in some cases
1046
- Fixed master IP activation when doing master failover with no-voting
1047
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
1048
  the master node itself
1049
- Fixed potential data-loss in under disk full conditions, where Ganeti
1050
  wouldn't check correctly the return code and would consider
1051
  partially-written files 'correct'
1052
- Fixed bug related to multiple VGs and DRBD disk replacing
1053
- Added new disk parameter ``metavg`` that allows placement of the meta
1054
  device for DRBD in a different volume group
1055
- Fixed error handling in the node daemon when the system libc doesn't
1056
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
1057
- Fixed lock release during replace-disks, which kept cluster-wide locks
1058
  when doing disk replaces with an iallocator script
1059
- Added check for missing bridges in cluster verify
1060
- Handle EPIPE errors while writing to the terminal better, so that
1061
  piping the output to e.g. ``less`` doesn't cause a backtrace
1062
- Fixed rare case where a ^C during Luxi calls could have been
1063
  interpreted as server errors, instead of simply terminating
1064
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
1065
  assign-nodes``)
1066
- Added a few more parameters to the KVM hypervisor, allowing a second
1067
  CDROM, custom disk type for CDROMs and a floppy image
1068
- Removed redundant message in instance rename when the name is given
1069
  already as a FQDN
1070
- Added option to ``gnt-instance recreate-disks`` to allow creating the
1071
  disks on new nodes, allowing recreation when the original instance
1072
  nodes are completely gone
1073
- Added option when converting disk templates to DRBD to skip waiting
1074
  for the resync, in order to make the instance available sooner
1075
- Added two new variables to the OS scripts environment (containing the
1076
  instance's nodes)
1077
- Made the root_path and optional parameter for the xen-pvm hypervisor,
1078
  to allow use of ``pvgrub`` as bootloader
1079
- Changed the instance memory modifications to only check out-of-memory
1080
  conditions on memory increases, and turned the secondary node warnings
1081
  into errors (they can still be overridden via ``--force``)
1082
- Fixed the handling of a corner case when the Python installation gets
1083
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
1084
  to execute a command that doesn't exist
1085
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
1086
  node of the instance returned failures during instance shutdown; this
1087
  adds the option ``--ignore-consistency`` to gnt-instance move
1088

    
1089
And as usual, various improvements to the error messages, documentation
1090
and man pages.
1091

    
1092

    
1093
Version 2.4.1
1094
-------------
1095

    
1096
*(Released Wed, 09 Mar 2011)*
1097

    
1098
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
1099
the RAPI users file if run twice (even with ``--dry-run``).
1100

    
1101
The release fixes that bug (nothing else changed).
1102

    
1103

    
1104
Version 2.4.0
1105
-------------
1106

    
1107
*(Released Mon, 07 Mar 2011)*
1108

    
1109
Final 2.4.0 release. Just a few small fixes:
1110

    
1111
- Fixed RAPI node evacuate
1112
- Fixed the kvm-ifup script
1113
- Fixed internal error handling for special job cases
1114
- Updated man page to specify the escaping feature for options
1115

    
1116

    
1117
Version 2.4.0 rc3
1118
-----------------
1119

    
1120
*(Released Mon, 28 Feb 2011)*
1121

    
1122
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1123
that this feature wiped the disks of the wrong instance, leading to loss
1124
of data.
1125

    
1126
Other changes:
1127

    
1128
- Fixed title of query field containing instance name
1129
- Expanded the glossary in the documentation
1130
- Fixed one unittest (internal issue)
1131

    
1132

    
1133
Version 2.4.0 rc2
1134
-----------------
1135

    
1136
*(Released Mon, 21 Feb 2011)*
1137

    
1138
A number of bug fixes plus just a couple functionality changes.
1139

    
1140
On the user-visible side, the ``gnt-* list`` command output has changed
1141
with respect to "special" field states. The current rc1 style of display
1142
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1143
the default output mode special fields states are displayed as follows:
1144

    
1145
- Offline resource: ``*``
1146
- Unavailable/not applicable: ``-``
1147
- Data missing (RPC failure): ``?``
1148
- Unknown field: ``??``
1149

    
1150
Another user-visible change is the addition of ``--force-join`` to
1151
``gnt-node add``.
1152

    
1153
As for bug fixes:
1154

    
1155
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
1156
- Fixed regression in RAPI/instance reinstall where all parameters were
1157
  required (instead of optional)
1158
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1159
- Fixed iallocator usage (offline nodes were not considered offline)
1160
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1161
- Fixed hypervisor and OS parameter validation with respect to
1162
  non-vm_capable nodes
1163
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1164
  cosmetic)
1165
- Fixed ``tools/listrunner`` with respect to agent-based usage
1166

    
1167

    
1168
Version 2.4.0 rc1
1169
-----------------
1170

    
1171
*(Released Fri,  4 Feb 2011)*
1172

    
1173
Many changes and fixes since the beta1 release. While there were some
1174
internal changes, the code has been mostly stabilised for the RC
1175
release.
1176

    
1177
Note: the dumb allocator was removed in this release, as it was not kept
1178
up-to-date with the IAllocator protocol changes. It is recommended to
1179
use the ``hail`` command from the ganeti-htools package.
1180

    
1181
Note: the 2.4 and up versions of Ganeti are not compatible with the
1182
0.2.x branch of ganeti-htools. You need to upgrade to
1183
ganeti-htools-0.3.0 (or later).
1184

    
1185
Regressions fixed from 2.3
1186
~~~~~~~~~~~~~~~~~~~~~~~~~~
1187

    
1188
- Fixed the ``gnt-cluster verify-disks`` command
1189
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1190
  serially on nodes)
1191
- Fixed disk adoption breakage
1192
- Fixed wrong headers in instance listing for field aliases
1193

    
1194
Other bugs fixed
1195
~~~~~~~~~~~~~~~~
1196

    
1197
- Fixed corner case in KVM handling of NICs
1198
- Fixed many cases of wrong handling of non-vm_capable nodes
1199
- Fixed a bug where a missing instance symlink was not possible to
1200
  recreate with any ``gnt-*`` command (now ``gnt-instance
1201
  activate-disks`` does it)
1202
- Fixed the volume group name as reported by ``gnt-cluster
1203
  verify-disks``
1204
- Increased timeouts for the import-export code, hopefully leading to
1205
  fewer aborts due network or instance timeouts
1206
- Fixed bug in ``gnt-node list-storage``
1207
- Fixed bug where not all daemons were started on cluster
1208
  initialisation, but only at the first watcher run
1209
- Fixed many bugs in the OOB implementation
1210
- Fixed watcher behaviour in presence of instances with offline
1211
  secondaries
1212
- Fixed instance list output for instances running on the wrong node
1213
- a few fixes to the cluster-merge tool, but it still cannot merge
1214
  multi-node groups (currently it is not recommended to use this tool)
1215

    
1216

    
1217
Improvements
1218
~~~~~~~~~~~~
1219

    
1220
- Improved network configuration for the KVM hypervisor
1221
- Added e1000 as a supported NIC for Xen-HVM
1222
- Improved the lvmstrap tool to also be able to use partitions, as
1223
  opposed to full disks
1224
- Improved speed of disk wiping (the cluster parameter
1225
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1226
  of instance creations
1227
- Added documentation for the OS parameters
1228
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1229
  hypervisor is not responding
1230
- Added display of blacklisted and hidden OS information in
1231
  ``gnt-cluster info``
1232
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1233
  NIC and node parameters, which might create problems with currently
1234
  invalid (but undetected) configuration files, but prevents validation
1235
  failures when unrelated parameters are modified
1236
- Changed cluster initialisation to wait for the master daemon to become
1237
  available
1238
- Expanded the RAPI interface:
1239

    
1240
  - Added config redistribution resource
1241
  - Added activation/deactivation of instance disks
1242
  - Added export of console information
1243

    
1244
- Implemented log file reopening on SIGHUP, which allows using
1245
  logrotate(8) for the Ganeti log files
1246
- Added a basic OOB helper script as an example
1247

    
1248

    
1249
Version 2.4.0 beta1
1250
-------------------
1251

    
1252
*(Released Fri, 14 Jan 2011)*
1253

    
1254
User-visible
1255
~~~~~~~~~~~~
1256

    
1257
- Fixed timezone issues when formatting timestamps
1258
- Added support for node groups, available via ``gnt-group`` and other
1259
  commands
1260
- Added out-of-band framework and management, see :doc:`design
1261
  document <design-oob>`
1262
- Removed support for roman numbers from ``gnt-node list`` and
1263
  ``gnt-instance list``.
1264
- Allowed modification of master network interface via ``gnt-cluster
1265
  modify --master-netdev``
1266
- Accept offline secondaries while shutting down instance disks
1267
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1268
- Added support for multiple LVM volume groups
1269
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1270
  requested
1271
- Added commands to list available fields:
1272

    
1273
  - ``gnt-node list-fields``
1274
  - ``gnt-group list-fields``
1275
  - ``gnt-instance list-fields``
1276

    
1277
- Updated documentation and man pages
1278

    
1279
Integration
1280
~~~~~~~~~~~
1281

    
1282
- Moved ``rapi_users`` file into separate directory, now named
1283
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1284
  symlink
1285
- Added new tool for running commands on many machines,
1286
  ``tools/ganeti-listrunner``
1287
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1288
  improving the ``gnt-instance console`` output
1289
- Allowed customisation of disk index separator at ``configure`` time
1290
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1291
- Added support for non-partitioned md disks in ``lvmstrap``
1292
- Added script to gracefully power off KVM instances
1293
- Split ``utils`` module into smaller parts
1294
- Changed query operations to return more detailed information, e.g.
1295
  whether an information is unavailable due to an offline node. To use
1296
  this new functionality, the LUXI call ``Query`` must be used. Field
1297
  information is now stored by the master daemon and can be retrieved
1298
  using ``QueryFields``. Instances, nodes and groups can also be queried
1299
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1300
  exposed via RAPI). The following commands make use of this
1301
  infrastructure change:
1302

    
1303
  - ``gnt-group list``
1304
  - ``gnt-group list-fields``
1305
  - ``gnt-node list``
1306
  - ``gnt-node list-fields``
1307
  - ``gnt-instance list``
1308
  - ``gnt-instance list-fields``
1309
  - ``gnt-debug locks``
1310

    
1311
Remote API
1312
~~~~~~~~~~
1313

    
1314
- New RAPI resources (see :doc:`rapi`):
1315

    
1316
  - ``/2/modify``
1317
  - ``/2/groups``
1318
  - ``/2/groups/[group_name]``
1319
  - ``/2/groups/[group_name]/assign-nodes``
1320
  - ``/2/groups/[group_name]/modify``
1321
  - ``/2/groups/[group_name]/rename``
1322
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1323

    
1324
- RAPI changes:
1325

    
1326
  - Implemented ``no_install`` for instance creation
1327
  - Implemented OS parameters for instance reinstallation, allowing
1328
    use of special settings on reinstallation (e.g. for preserving data)
1329

    
1330
Misc
1331
~~~~
1332

    
1333
- Added IPv6 support in import/export
1334
- Pause DRBD synchronization while wiping disks on instance creation
1335
- Updated unittests and QA scripts
1336
- Improved network parameters passed to KVM
1337
- Converted man pages from docbook to reStructuredText
1338

    
1339

    
1340
Version 2.3.1
1341
-------------
1342

    
1343
*(Released Mon, 20 Dec 2010)*
1344

    
1345
Released version 2.3.1~rc1 without any changes.
1346

    
1347

    
1348
Version 2.3.1 rc1
1349
-----------------
1350

    
1351
*(Released Wed, 1 Dec 2010)*
1352

    
1353
- impexpd: Disable OpenSSL compression in socat if possible (backport
1354
  from master, commit e90739d625b, see :doc:`installation guide
1355
  <install-quick>` for details)
1356
- Changed unittest coverage report to exclude test scripts
1357
- Added script to check version format
1358

    
1359

    
1360
Version 2.3.0
1361
-------------
1362

    
1363
*(Released Wed, 1 Dec 2010)*
1364

    
1365
Released version 2.3.0~rc1 without any changes.
1366

    
1367

    
1368
Version 2.3.0 rc1
1369
-----------------
1370

    
1371
*(Released Fri, 19 Nov 2010)*
1372

    
1373
A number of bugfixes and documentation updates:
1374

    
1375
- Update ganeti-os-interface documentation
1376
- Fixed a bug related to duplicate MACs or similar items which should be
1377
  unique
1378
- Fix breakage in OS state modify
1379
- Reinstall instance: disallow offline secondaries (fixes bug related to
1380
  OS changing but reinstall failing)
1381
- plus all the other fixes between 2.2.1 and 2.2.2
1382

    
1383

    
1384
Version 2.3.0 rc0
1385
-----------------
1386

    
1387
*(Released Tue, 2 Nov 2010)*
1388

    
1389
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1390
- Fixed master failover race with watcher
1391
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1392
  configuration
1393
- Accept previously stopped instance for export with instance removal
1394
- Simplify and extend the environment variables for instance OS scripts
1395
- Added new node flags, ``master_capable`` and ``vm_capable``
1396
- Added optional instance disk wiping prior during allocation. This is a
1397
  cluster-wide option and can be set/modified using
1398
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1399
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1400
  :doc:`install-quick`
1401
- Added a new watcher option (``--ignore-pause``)
1402
- Added option to ignore offline node on instance start/stop
1403
  (``--ignore-offline``)
1404
- Allow overriding OS parameters with ``gnt-instance reinstall``
1405
- Added ability to change node's secondary IP address using ``gnt-node
1406
  modify``
1407
- Implemented privilege separation for all daemons except
1408
  ``ganeti-noded``, see ``configure`` options
1409
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1410
  verify``
1411
- Implemented job priorities (see ``ganeti(7)`` manpage)
1412
- Ignore failures while shutting down instances during failover from
1413
  offline node
1414
- Exit daemon's bootstrap process only once daemon is ready
1415
- Export more information via ``LUInstanceQuery``/remote API
1416
- Improved documentation, QA and unittests
1417
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1418
  restart if the file was created or changed
1419
- Added LUXI protocol version sent with each request and response,
1420
  allowing detection of server/client mismatches
1421
- Moved the Python scripts among gnt-* and ganeti-* into modules
1422
- Moved all code related to setting up SSH to an external script,
1423
  ``setup-ssh``
1424
- Infrastructure changes for node group support in future versions
1425

    
1426

    
1427
Version 2.2.2
1428
-------------
1429

    
1430
*(Released Fri, 19 Nov 2010)*
1431

    
1432
A few small bugs fixed, and some improvements to the build system:
1433

    
1434
- Fix documentation regarding conversion to drbd
1435
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1436
  -B``)
1437
- Fix error handling in node modify with multiple changes
1438
- Allow remote imports without checked names
1439

    
1440

    
1441
Version 2.2.1
1442
-------------
1443

    
1444
*(Released Tue, 19 Oct 2010)*
1445

    
1446
- Disable SSL session ID cache in RPC client
1447

    
1448

    
1449
Version 2.2.1 rc1
1450
-----------------
1451

    
1452
*(Released Thu, 14 Oct 2010)*
1453

    
1454
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1455
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1456
  with GnuTLS
1457
- Fix problems with interaction between Curl and Python's HTTP server,
1458
  resulting in increased speed in many RPC calls
1459
- Improve our release script to prevent breakage with older aclocal and
1460
  Python 2.6
1461

    
1462

    
1463
Version 2.2.1 rc0
1464
-----------------
1465

    
1466
*(Released Thu, 7 Oct 2010)*
1467

    
1468
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1469
  value retrieved from master
1470
- Added support for blacklisted or hidden OS definitions
1471
- Added simple lock monitor (accessible via (``gnt-debug locks``)
1472
- Added support for -mem-path in KVM hypervisor abstraction layer
1473
- Allow overriding instance parameters in tool for inter-cluster
1474
  instance moves (``tools/move-instance``)
1475
- Improved opcode summaries (e.g. in ``gnt-job list``)
1476
- Improve consistency of OS listing by sorting it
1477
- Documentation updates
1478

    
1479

    
1480
Version 2.2.0.1
1481
---------------
1482

    
1483
*(Released Fri, 8 Oct 2010)*
1484

    
1485
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
1486

    
1487

    
1488
Version 2.2.0
1489
-------------
1490

    
1491
*(Released Mon, 4 Oct 2010)*
1492

    
1493
- Fixed regression in ``gnt-instance rename``
1494

    
1495

    
1496
Version 2.2.0 rc2
1497
-----------------
1498

    
1499
*(Released Wed, 22 Sep 2010)*
1500

    
1501
- Fixed OS_VARIANT variable for OS scripts
1502
- Fixed cluster tag operations via RAPI
1503
- Made ``setup-ssh`` exit with non-zero code if an error occurred
1504
- Disabled RAPI CA checks in watcher
1505

    
1506

    
1507
Version 2.2.0 rc1
1508
-----------------
1509

    
1510
*(Released Mon, 23 Aug 2010)*
1511

    
1512
- Support DRBD versions of the format "a.b.c.d"
1513
- Updated manpages
1514
- Re-introduce support for usage from multiple threads in RAPI client
1515
- Instance renames and modify via RAPI
1516
- Work around race condition between processing and archival in job
1517
  queue
1518
- Mark opcodes following failed one as failed, too
1519
- Job field ``lock_status`` was removed due to difficulties making it
1520
  work with the changed job queue in Ganeti 2.2; a better way to monitor
1521
  locks is expected for a later 2.2.x release
1522
- Fixed dry-run behaviour with many commands
1523
- Support ``ssh-agent`` again when adding nodes
1524
- Many additional bugfixes
1525

    
1526

    
1527
Version 2.2.0 rc0
1528
-----------------
1529

    
1530
*(Released Fri, 30 Jul 2010)*
1531

    
1532
Important change: the internal RPC mechanism between Ganeti nodes has
1533
changed from using a home-grown http library (based on the Python base
1534
libraries) to use the PycURL library. This requires that PycURL is
1535
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
1536
against GnuTLS by default. cURL's support for GnuTLS had known issues
1537
before cURL 7.21.0 and we recommend using the latest cURL release or
1538
linking against OpenSSL. Most other distributions already link PycURL
1539
and cURL against OpenSSL. The command::
1540

    
1541
  python -c 'import pycurl; print pycurl.version'
1542

    
1543
can be used to determine the libraries PycURL and cURL are linked
1544
against.
1545

    
1546
Other significant changes:
1547

    
1548
- Rewrote much of the internals of the job queue, in order to achieve
1549
  better parallelism; this decouples job query operations from the job
1550
  processing, and it should allow much nicer behaviour of the master
1551
  daemon under load, and it also has uncovered some long-standing bugs
1552
  related to the job serialisation (now fixed)
1553
- Added a default iallocator setting to the cluster parameters,
1554
  eliminating the need to always pass nodes or an iallocator for
1555
  operations that require selection of new node(s)
1556
- Added experimental support for the LXC virtualization method
1557
- Added support for OS parameters, which allows the installation of
1558
  instances to pass parameter to OS scripts in order to customise the
1559
  instance
1560
- Added a hypervisor parameter controlling the migration type (live or
1561
  non-live), since hypervisors have various levels of reliability; this
1562
  has renamed the 'live' parameter to 'mode'
1563
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
1564
  logical volumes, meaning that cluster verify will ignore them and not
1565
  flag their presence as errors
1566
- The watcher will now reset the error count for failed instances after
1567
  8 hours, thus allowing self-healing if the problem that caused the
1568
  instances to be down/fail to start has cleared in the meantime
1569
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
1570
  check for, and warn, if the drbd module parameter ``usermode_helper``
1571
  is not consistent with the cluster-wide setting; this is needed to
1572
  make diagnose easier of failed drbd creations
1573
- Started adding base IPv6 support, but this is not yet
1574
  enabled/available for use
1575
- Rename operations (cluster, instance) will now return the new name,
1576
  which is especially useful if a short name was passed in
1577
- Added support for instance migration in RAPI
1578
- Added a tool to pre-configure nodes for the SSH setup, before joining
1579
  them to the cluster; this will allow in the future a simplified model
1580
  for node joining (but not yet fully enabled in 2.2); this needs the
1581
  paramiko python library
1582
- Fixed handling of name-resolving errors
1583
- Fixed consistency of job results on the error path
1584
- Fixed master-failover race condition when executed multiple times in
1585
  sequence
1586
- Fixed many bugs related to the job queue (mostly introduced during the
1587
  2.2 development cycle, so not all are impacting 2.1)
1588
- Fixed instance migration with missing disk symlinks
1589
- Fixed handling of unknown jobs in ``gnt-job archive``
1590
- And many other small fixes/improvements
1591

    
1592
Internal changes:
1593

    
1594
- Enhanced both the unittest and the QA coverage
1595
- Switched the opcode validation to a generic model, and extended the
1596
  validation to all opcode parameters
1597
- Changed more parts of the code that write shell scripts to use the
1598
  same class for this
1599
- Switched the master daemon to use the asyncore library for the Luxi
1600
  server endpoint
1601

    
1602

    
1603
Version 2.2.0 beta0
1604
-------------------
1605

    
1606
*(Released Thu, 17 Jun 2010)*
1607

    
1608
- Added tool (``move-instance``) and infrastructure to move instances
1609
  between separate clusters (see :doc:`separate documentation
1610
  <move-instance>` and :doc:`design document <design-2.2>`)
1611
- Added per-request RPC timeout
1612
- RAPI now requires a Content-Type header for requests with a body (e.g.
1613
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
1614
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
1615
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
1616
  reachable
1617
- Implemented initial support for running Ganeti daemons as separate
1618
  users, see configure-time flags ``--with-user-prefix`` and
1619
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
1620
  time)
1621
- Instances can be removed after export (``gnt-backup export
1622
  --remove-instance``)
1623
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
1624
  key (instead of 1024 bit)
1625
- Added new cluster configuration file for cluster domain secret
1626
- Import/export now use SSL instead of SSH
1627
- Added support for showing estimated time when exporting an instance,
1628
  see the ``ganeti-os-interface(7)`` manpage and look for
1629
  ``EXP_SIZE_FD``
1630

    
1631

    
1632
Version 2.1.8
1633
-------------
1634

    
1635
*(Released Tue, 16 Nov 2010)*
1636

    
1637
Some more bugfixes. Unless critical bugs occur, this will be the last
1638
2.1 release:
1639

    
1640
- Fix case of MAC special-values
1641
- Fix mac checker regex
1642
- backend: Fix typo causing "out of range" error
1643
- Add missing --units in gnt-instance list man page
1644

    
1645

    
1646
Version 2.1.7
1647
-------------
1648

    
1649
*(Released Tue, 24 Aug 2010)*
1650

    
1651
Bugfixes only:
1652
  - Don't ignore secondary node silently on non-mirrored disk templates
1653
    (issue 113)
1654
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
1655
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
1656
  - Properly document the usb_mouse parameter
1657
  - Fix path in ganeti-rapi(8) (issue 116)
1658
  - Adjust error message when the ganeti user's .ssh directory is
1659
    missing
1660
  - Add same-node-check when changing the disk template to drbd
1661

    
1662

    
1663
Version 2.1.6
1664
-------------
1665

    
1666
*(Released Fri, 16 Jul 2010)*
1667

    
1668
Bugfixes only:
1669
  - Add an option to only select some reboot types during qa/burnin.
1670
    (on some hypervisors consequent reboots are not supported)
1671
  - Fix infrequent race condition in master failover. Sometimes the old
1672
    master ip address would be still detected as up for a short time
1673
    after it was removed, causing failover to fail.
1674
  - Decrease mlockall warnings when the ctypes module is missing. On
1675
    Python 2.4 we support running even if no ctypes module is installed,
1676
    but we were too verbose about this issue.
1677
  - Fix building on old distributions, on which man doesn't have a
1678
    --warnings option.
1679
  - Fix RAPI not to ignore the MAC address on instance creation
1680
  - Implement the old instance creation format in the RAPI client.
1681

    
1682

    
1683
Version 2.1.5
1684
-------------
1685

    
1686
*(Released Thu, 01 Jul 2010)*
1687

    
1688
A small bugfix release:
1689
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
1690
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
1691
    a non-existing option
1692
  - Fix instance create: the --force-variant option was ignored
1693
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
1694
  - Fix modify node storage with non-FQDN arguments
1695
  - Fix RAPI client to authenticate under Python 2.6 when used
1696
    for more than 5 requests needing authentication
1697
  - Fix gnt-instance modify -t (storage) giving a wrong error message
1698
    when converting a non-shutdown drbd instance to plain
1699

    
1700

    
1701
Version 2.1.4
1702
-------------
1703

    
1704
*(Released Fri, 18 Jun 2010)*
1705

    
1706
A small bugfix release:
1707

    
1708
  - Fix live migration of KVM instances started with older Ganeti
1709
    versions which had fewer hypervisor parameters
1710
  - Fix gnt-instance grow-disk on down instances
1711
  - Fix an error-reporting bug during instance migration
1712
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
1713
    silently ignoring broken ones
1714
  - Fix an RPC error reporting bug affecting, for example, RAPI client
1715
    users
1716
  - Fix bug triggered by different API version os-es on different nodes
1717
  - Fix a bug in instance startup with custom hvparams: OS level
1718
    parameters would fail to be applied.
1719
  - Fix the RAPI client under Python 2.6 (but more work is needed to
1720
    make it work completely well with OpenSSL)
1721
  - Fix handling of errors when resolving names from DNS
1722

    
1723

    
1724
Version 2.1.3
1725
-------------
1726

    
1727
*(Released Thu, 3 Jun 2010)*
1728

    
1729
A medium sized development cycle. Some new features, and some
1730
fixes/small improvements/cleanups.
1731

    
1732
Significant features
1733
~~~~~~~~~~~~~~~~~~~~
1734

    
1735
The node deamon now tries to mlock itself into memory, unless the
1736
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1737
its logs, and falls back to console logging. This allows emergency
1738
features such as ``gnt-node powercycle`` to work even in the event of a
1739
broken node disk (tested offlining the disk hosting the node's
1740
filesystem and dropping its memory caches; don't try this at home)
1741

    
1742
KVM: add vhost-net acceleration support. It can be tested with a new
1743
enough version of the kernel and of qemu-kvm.
1744

    
1745
KVM: Add instance chrooting feature. If you use privilege dropping for
1746
your VMs you can also now force them to chroot to an empty directory,
1747
before starting the emulated guest.
1748

    
1749
KVM: Add maximum migration bandwith and maximum downtime tweaking
1750
support (requires a new-enough version of qemu-kvm).
1751

    
1752
Cluster verify will now warn if the master node doesn't have the master
1753
ip configured on it.
1754

    
1755
Add a new (incompatible) instance creation request format to RAPI which
1756
supports all parameters (previously only a subset was supported, and it
1757
wasn't possible to extend the old format to accomodate all the new
1758
features. The old format is still supported, and a client can check for
1759
this feature, before using it, by checking for its presence in the
1760
``features`` RAPI resource.
1761

    
1762
Now with ancient latin support. Try it passing the ``--roman`` option to
1763
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1764
(requires the python-roman module to be installed, in order to work).
1765

    
1766
Other changes
1767
~~~~~~~~~~~~~
1768

    
1769
As usual many internal code refactorings, documentation updates, and
1770
such. Among others:
1771

    
1772
  - Lots of improvements and cleanups to the experimental Remote API
1773
    (RAPI) client library.
1774
  - A new unit test suite for the core daemon libraries.
1775
  - A fix to creating missing directories makes sure the umask is not
1776
    applied anymore. This enforces the same directory permissions
1777
    everywhere.
1778
  - Better handling terminating daemons with ctrl+c (used when running
1779
    them in debugging mode).
1780
  - Fix a race condition in live migrating a KVM instance, when stat()
1781
    on the old proc status file returned EINVAL, which is an unexpected
1782
    value.
1783
  - Fixed manpage checking with newer man and utf-8 charachters. But now
1784
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1785

    
1786

    
1787
Version 2.1.2.1
1788
---------------
1789

    
1790
*(Released Fri, 7 May 2010)*
1791

    
1792
Fix a bug which prevented untagged KVM instances from starting.
1793

    
1794

    
1795
Version 2.1.2
1796
-------------
1797

    
1798
*(Released Fri, 7 May 2010)*
1799

    
1800
Another release with a long development cycle, during which many
1801
different features were added.
1802

    
1803
Significant features
1804
~~~~~~~~~~~~~~~~~~~~
1805

    
1806
The KVM hypervisor now can run the individual instances as non-root, to
1807
reduce the impact of a VM being hijacked due to bugs in the
1808
hypervisor. It is possible to run all instances as a single (non-root)
1809
user, to manually specify a user for each instance, or to dynamically
1810
allocate a user out of a cluster-wide pool to each instance, with the
1811
guarantee that no two instances will run under the same user ID on any
1812
given node.
1813

    
1814
An experimental RAPI client library, that can be used standalone
1815
(without the other Ganeti libraries), is provided in the source tree as
1816
``lib/rapi/client.py``. Note this client might change its interface in
1817
the future, as we iterate on its capabilities.
1818

    
1819
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1820
replace the cluster's certificates and crypto keys. This might help in
1821
case they have been compromised, or have simply expired.
1822

    
1823
A new disk option for instance creation has been added that allows one
1824
to "adopt" currently existing logical volumes, with data
1825
preservation. This should allow easier migration to Ganeti from
1826
unmanaged (or managed via other software) instances.
1827

    
1828
Another disk improvement is the possibility to convert between redundant
1829
(DRBD) and plain (LVM) disk configuration for an instance. This should
1830
allow better scalability (starting with one node and growing the
1831
cluster, or shrinking a two-node cluster to one node).
1832

    
1833
A new feature that could help with automated node failovers has been
1834
implemented: if a node sees itself as offline (by querying the master
1835
candidates), it will try to shutdown (hard) all instances and any active
1836
DRBD devices. This reduces the risk of duplicate instances if an
1837
external script automatically failovers the instances on such nodes. To
1838
enable this, the cluster parameter ``maintain_node_health`` should be
1839
enabled; in the future this option (per the name) will enable other
1840
automatic maintenance features.
1841

    
1842
Instance export/import now will reuse the original instance
1843
specifications for all parameters; that means exporting an instance,
1844
deleting it and the importing it back should give an almost identical
1845
instance. Note that the default import behaviour has changed from
1846
before, where it created only one NIC; now it recreates the original
1847
number of NICs.
1848

    
1849
Cluster verify has added a few new checks: SSL certificates validity,
1850
/etc/hosts consistency across the cluster, etc.
1851

    
1852
Other changes
1853
~~~~~~~~~~~~~
1854

    
1855
As usual, many internal changes were done, documentation fixes,
1856
etc. Among others:
1857

    
1858
- Fixed cluster initialization with disabled cluster storage (regression
1859
  introduced in 2.1.1)
1860
- File-based storage supports growing the disks
1861
- Fixed behaviour of node role changes
1862
- Fixed cluster verify for some corner cases, plus a general rewrite of
1863
  cluster verify to allow future extension with more checks
1864
- Fixed log spamming by watcher and node daemon (regression introduced
1865
  in 2.1.1)
1866
- Fixed possible validation issues when changing the list of enabled
1867
  hypervisors
1868
- Fixed cleanup of /etc/hosts during node removal
1869
- Fixed RAPI response for invalid methods
1870
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1871
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1872
  from ide disks, etc.)
1873
- Allow OS changes without re-installation (to record a changed OS
1874
  outside of Ganeti, or to allow OS renames)
1875
- Allow instance creation without OS installation (useful for example if
1876
  the OS will be installed manually, or restored from a backup not in
1877
  Ganeti format)
1878
- Implemented option to make cluster ``copyfile`` use the replication
1879
  network
1880
- Added list of enabled hypervisors to ssconf (possibly useful for
1881
  external scripts)
1882
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1883
  1.2 clusters
1884
- A partial form of node re-IP is possible via node readd, which now
1885
  allows changed node primary IP
1886
- Command line utilities now show an informational message if the job is
1887
  waiting for a lock
1888
- The logs of the master daemon now show the PID/UID/GID of the
1889
  connected client
1890

    
1891

    
1892
Version 2.1.1
1893
-------------
1894

    
1895
*(Released Fri, 12 Mar 2010)*
1896

    
1897
During the 2.1.0 long release candidate cycle, a lot of improvements and
1898
changes have accumulated with were released later as 2.1.1.
1899

    
1900
Major changes
1901
~~~~~~~~~~~~~
1902

    
1903
The node evacuate command (``gnt-node evacuate``) was significantly
1904
rewritten, and as such the IAllocator protocol was changed - a new
1905
request type has been added. This unfortunate change during a stable
1906
series is designed to improve performance of node evacuations; on
1907
clusters with more than about five nodes and which are well-balanced,
1908
evacuation should proceed in parallel for all instances of the node
1909
being evacuated. As such, any existing IAllocator scripts need to be
1910
updated, otherwise the above command will fail due to the unknown
1911
request. The provided "dumb" allocator has not been updated; but the
1912
ganeti-htools package supports the new protocol since version 0.2.4.
1913

    
1914
Another important change is increased validation of node and instance
1915
names. This might create problems in special cases, if invalid host
1916
names are being used.
1917

    
1918
Also, a new layer of hypervisor parameters has been added, that sits at
1919
OS level between the cluster defaults and the instance ones. This allows
1920
customisation of virtualization parameters depending on the installed
1921
OS. For example instances with OS 'X' may have a different KVM kernel
1922
(or any other parameter) than the cluster defaults. This is intended to
1923
help managing a multiple OSes on the same cluster, without manual
1924
modification of each instance's parameters.
1925

    
1926
A tool for merging clusters, ``cluster-merge``, has been added in the
1927
tools sub-directory.
1928

    
1929
Bug fixes
1930
~~~~~~~~~
1931

    
1932
- Improved the int/float conversions that should make the code more
1933
  robust in face of errors from the node daemons
1934
- Fixed the remove node code in case of internal configuration errors
1935
- Fixed the node daemon behaviour in face of inconsistent queue
1936
  directory (e.g. read-only file-system where we can't open the files
1937
  read-write, etc.)
1938
- Fixed the behaviour of gnt-node modify for master candidate demotion;
1939
  now it either aborts cleanly or, if given the new "auto_promote"
1940
  parameter, will automatically promote other nodes as needed
1941
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
1942
  completely prevent Ganeti from working
1943
- Fixed bug for instance export when not all disks were successfully
1944
  exported
1945
- Fixed behaviour of node add when the new node is slow in starting up
1946
  the node daemon
1947
- Fixed handling of signals in the LUXI client, which should improve
1948
  behaviour of command-line scripts
1949
- Added checks for invalid node/instance names in the configuration (now
1950
  flagged during cluster verify)
1951
- Fixed watcher behaviour for disk activation errors
1952
- Fixed two potentially endless loops in http library, which led to the
1953
  RAPI daemon hanging and consuming 100% CPU in some cases
1954
- Fixed bug in RAPI daemon related to hashed passwords
1955
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
1956
  instances
1957
- Enhanced compatibility with non-Debian OSes, but not using absolute
1958
  path in some commands and allowing customisation of the ssh
1959
  configuration directory
1960
- Fixed possible future issue with new Python versions by abiding to the
1961
  proper use of ``__slots__`` attribute on classes
1962
- Added checks that should prevent directory traversal attacks
1963
- Many documentation fixes based on feedback from users
1964

    
1965
New features
1966
~~~~~~~~~~~~
1967

    
1968
- Added an "early_release" more for instance replace disks and node
1969
  evacuate, where we release locks earlier and thus allow higher
1970
  parallelism within the cluster
1971
- Added watcher hooks, intended to allow the watcher to restart other
1972
  daemons (e.g. from the ganeti-nbma project), but they can be used of
1973
  course for any other purpose
1974
- Added a compile-time disable for DRBD barriers, to increase
1975
  performance if the administrator trusts the power supply or the
1976
  storage system to not lose writes
1977
- Added the option of using syslog for logging instead of, or in
1978
  addition to, Ganeti's own log files
1979
- Removed boot restriction for paravirtual NICs for KVM, recent versions
1980
  can indeed boot from a paravirtual NIC
1981
- Added a generic debug level for many operations; while this is not
1982
  used widely yet, it allows one to pass the debug value all the way to
1983
  the OS scripts
1984
- Enhanced the hooks environment for instance moves (failovers,
1985
  migrations) where the primary/secondary nodes changed during the
1986
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1987
- Enhanced data validations for many user-supplied values; one important
1988
  item is the restrictions imposed on instance and node names, which
1989
  might reject some (invalid) host names
1990
- Add a configure-time option to disable file-based storage, if it's not
1991
  needed; this allows greater security separation between the master
1992
  node and the other nodes from the point of view of the inter-node RPC
1993
  protocol
1994
- Added user notification in interactive tools if job is waiting in the
1995
  job queue or trying to acquire locks
1996
- Added log messages when a job is waiting for locks
1997
- Added filtering by node tags in instance operations which admit
1998
  multiple instances (start, stop, reboot, reinstall)
1999
- Added a new tool for cluster mergers, ``cluster-merge``
2000
- Parameters from command line which are of the form ``a=b,c=d`` can now
2001
  use backslash escapes to pass in values which contain commas,
2002
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
2003
  ``b,c``
2004
- For KVM, the instance name is the first parameter passed to KVM, so
2005
  that it's more visible in the process list
2006

    
2007

    
2008
Version 2.1.0
2009
-------------
2010

    
2011
*(Released Tue, 2 Mar 2010)*
2012

    
2013
Ganeti 2.1 brings many improvements with it. Major changes:
2014

    
2015
- Added infrastructure to ease automated disk repairs
2016
- Added new daemon to export configuration data in a cheaper way than
2017
  using the remote API
2018
- Instance NICs can now be routed instead of being associated with a
2019
  networking bridge
2020
- Improved job locking logic to reduce impact of jobs acquiring multiple
2021
  locks waiting for other long-running jobs
2022

    
2023
In-depth implementation details can be found in the Ganeti 2.1 design
2024
document.
2025

    
2026
Details
2027
~~~~~~~
2028

    
2029
- Added chroot hypervisor
2030
- Added more options to xen-hvm hypervisor (``kernel_path`` and
2031
  ``device_model``)
2032
- Added more options to xen-pvm hypervisor (``use_bootloader``,
2033
  ``bootloader_path`` and ``bootloader_args``)
2034
- Added the ``use_localtime`` option for the xen-hvm and kvm
2035
  hypervisors, and the default value for this has changed to false (in
2036
  2.0 xen-hvm always enabled it)
2037
- Added luxi call to submit multiple jobs in one go
2038
- Added cluster initialization option to not modify ``/etc/hosts``
2039
  file on nodes
2040
- Added network interface parameters
2041
- Added dry run mode to some LUs
2042
- Added RAPI resources:
2043

    
2044
  - ``/2/instances/[instance_name]/info``
2045
  - ``/2/instances/[instance_name]/replace-disks``
2046
  - ``/2/nodes/[node_name]/evacuate``
2047
  - ``/2/nodes/[node_name]/migrate``
2048
  - ``/2/nodes/[node_name]/role``
2049
  - ``/2/nodes/[node_name]/storage``
2050
  - ``/2/nodes/[node_name]/storage/modify``
2051
  - ``/2/nodes/[node_name]/storage/repair``
2052

    
2053
- Added OpCodes to evacuate or migrate all instances on a node
2054
- Added new command to list storage elements on nodes (``gnt-node
2055
  list-storage``) and modify them (``gnt-node modify-storage``)
2056
- Added new ssconf files with master candidate IP address
2057
  (``ssconf_master_candidates_ips``), node primary IP address
2058
  (``ssconf_node_primary_ips``) and node secondary IP address
2059
  (``ssconf_node_secondary_ips``)
2060
- Added ``ganeti-confd`` and a client library to query the Ganeti
2061
  configuration via UDP
2062
- Added ability to run hooks after cluster initialization and before
2063
  cluster destruction
2064
- Added automatic mode for disk replace (``gnt-instance replace-disks
2065
  --auto``)
2066
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
2067
  after catastrophic data-loss
2068
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
2069
  groups
2070
- Added ``gnt-instance move`` command to move instances
2071
- Added ``gnt-cluster watcher`` command to control watcher
2072
- Added ``gnt-node powercycle`` command to powercycle nodes
2073
- Added new job status field ``lock_status``
2074
- Added parseable error codes to cluster verification (``gnt-cluster
2075
  verify --error-codes``) and made output less verbose (use
2076
  ``--verbose`` to restore previous behaviour)
2077
- Added UUIDs to the main config entities (cluster, nodes, instances)
2078
- Added support for OS variants
2079
- Added support for hashed passwords in the Ganeti remote API users file
2080
  (``rapi_users``)
2081
- Added option to specify maximum timeout on instance shutdown
2082
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
2083
- Added new helper script to start and stop Ganeti daemons
2084
  (``daemon-util``), with the intent to reduce the work necessary to
2085
  adjust Ganeti for non-Debian distributions and to start/stop daemons
2086
  from one place
2087
- Added more unittests
2088
- Fixed critical bug in ganeti-masterd startup
2089
- Removed the configure-time ``kvm-migration-port`` parameter, this is
2090
  now customisable at the cluster level for both the KVM and Xen
2091
  hypervisors using the new ``migration_port`` parameter
2092
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
2093
  reinstalling an instance
2094
- Allowed ``@`` in tag names
2095
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
2096
- Many documentation updates
2097
- Distribute hypervisor files on ``gnt-cluster redist-conf``
2098
- ``gnt-instance reinstall`` can now reinstall multiple instances
2099
- Updated many command line parameters
2100
- Introduced new OS API version 15
2101
- No longer support a default hypervisor
2102
- Treat virtual LVs as inexistent
2103
- Improved job locking logic to reduce lock contention
2104
- Match instance and node names case insensitively
2105
- Reimplemented bash completion script to be more complete
2106
- Improved burnin
2107

    
2108

    
2109
Version 2.0.6
2110
-------------
2111

    
2112
*(Released Thu, 4 Feb 2010)*
2113

    
2114
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2115
- Fix a string formatting bug
2116
- Improve safety of the code in some error paths
2117
- Improve data validation in the master of values returned from nodes
2118

    
2119

    
2120
Version 2.0.5
2121
-------------
2122

    
2123
*(Released Thu, 17 Dec 2009)*
2124

    
2125
- Fix security issue due to missing validation of iallocator names; this
2126
  allows local and remote execution of arbitrary executables
2127
- Fix failure of gnt-node list during instance removal
2128
- Ship the RAPI documentation in the archive
2129

    
2130

    
2131
Version 2.0.4
2132
-------------
2133

    
2134
*(Released Wed, 30 Sep 2009)*
2135

    
2136
- Fixed many wrong messages
2137
- Fixed a few bugs related to the locking library
2138
- Fixed MAC checking at instance creation time
2139
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
2140
- Fixed a few issues related to signal handling in both daemons and
2141
  scripts
2142
- Fixed the example startup script provided
2143
- Fixed insserv dependencies in the example startup script (patch from
2144
  Debian)
2145
- Fixed handling of drained nodes in the iallocator framework
2146
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2147
  #528618)
2148
- Fixed error related to invalid job IDs in job polling
2149
- Fixed job/opcode persistence on unclean master shutdown
2150
- Fixed handling of partial job processing after unclean master
2151
  shutdown
2152
- Fixed error reporting from LUs, previously all errors were converted
2153
  into execution errors
2154
- Fixed error reporting from burnin
2155
- Decreased significantly the memory usage of the job queue
2156
- Optimised slightly multi-job submission
2157
- Optimised slightly opcode loading
2158
- Backported the multi-job submit framework from the development
2159
  branch; multi-instance start and stop should be faster
2160
- Added script to clean archived jobs after 21 days; this will reduce
2161
  the size of the queue directory
2162
- Added some extra checks in disk size tracking
2163
- Added an example ethers hook script
2164
- Added a cluster parameter that prevents Ganeti from modifying of
2165
  /etc/hosts
2166
- Added more node information to RAPI responses
2167
- Added a ``gnt-job watch`` command that allows following the ouput of a
2168
  job
2169
- Added a bind-address option to ganeti-rapi
2170
- Added more checks to the configuration verify
2171
- Enhanced the burnin script such that some operations can be retried
2172
  automatically
2173
- Converted instance reinstall to multi-instance model
2174

    
2175

    
2176
Version 2.0.3
2177
-------------
2178

    
2179
*(Released Fri, 7 Aug 2009)*
2180

    
2181
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2182
  to allow using the pre-2.0.2 behaviour in activation, if any existing
2183
  instances have mismatched disk sizes in the configuration
2184
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
2185
  any configuration mismatches for disk sizes
2186
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2187
  failover to work on two-node clusters
2188
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2189
  unusable
2190
- Fixed detection of OS script errors in ``gnt-backup export``
2191
- Fixed exit code of ``gnt-backup export``
2192

    
2193

    
2194
Version 2.0.2
2195
-------------
2196

    
2197
*(Released Fri, 17 Jul 2009)*
2198

    
2199
- Added experimental support for stripped logical volumes; this should
2200
  enhance performance but comes with a higher complexity in the block
2201
  device handling; stripping is only enabled when passing
2202
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2203
  affected even in the non-stripped mode
2204
- Improved resiliency against transient failures at the end of DRBD
2205
  resyncs, and in general of DRBD resync checks
2206
- Fixed a couple of issues with exports and snapshot errors
2207
- Fixed a couple of issues in instance listing
2208
- Added display of the disk size in ``gnt-instance info``
2209
- Fixed checking for valid OSes in instance creation
2210
- Fixed handling of the "vcpus" parameter in instance listing and in
2211
  general of invalid parameters
2212
- Fixed http server library, and thus RAPI, to handle invalid
2213
  username/password combinations correctly; this means that now they
2214
  report unauthorized for queries too, not only for modifications,
2215
  allowing earlier detect of configuration problems
2216
- Added a new "role" node list field, equivalent to the master/master
2217
  candidate/drained/offline flags combinations
2218
- Fixed cluster modify and changes of candidate pool size
2219
- Fixed cluster verify error messages for wrong files on regular nodes
2220
- Fixed a couple of issues with node demotion from master candidate role
2221
- Fixed node readd issues
2222
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2223
- Added a new ``--no-voting`` option for masterfailover to fix failover
2224
  on two-nodes clusters when the former master node is unreachable
2225
- Added instance reinstall over RAPI
2226

    
2227

    
2228
Version 2.0.1
2229
-------------
2230

    
2231
*(Released Tue, 16 Jun 2009)*
2232

    
2233
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2234
  allow re-adding the start in single-user option (regression from 1.2)
2235
- the watcher writes the instance status to a file, to allow monitoring
2236
  to report the instance status (from the master) based on cached
2237
  results of the watcher's queries; while this can get stale if the
2238
  watcher is being locked due to other work on the cluster, this is
2239
  still an improvement
2240
- the watcher now also restarts the node daemon and the rapi daemon if
2241
  they died
2242
- fixed the watcher to handle full and drained queue cases
2243
- hooks export more instance data in the environment, which helps if
2244
  hook scripts need to take action based on the instance's properties
2245
  (no longer need to query back into ganeti)
2246
- instance failovers when the instance is stopped do not check for free
2247
  RAM, so that failing over a stopped instance is possible in low memory
2248
  situations
2249
- rapi uses queries for tags instead of jobs (for less job traffic), and
2250
  for cluster tags it won't talk to masterd at all but read them from
2251
  ssconf
2252
- a couple of error handling fixes in RAPI
2253
- drbd handling: improved the error handling of inconsistent disks after
2254
  resync to reduce the frequency of "there are some degraded disks for
2255
  this instance" messages
2256
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2257
  error handling path called a wrong function name)
2258

    
2259

    
2260
Version 2.0.0
2261
-------------
2262

    
2263
*(Released Wed, 27 May 2009)*
2264

    
2265
- no changes from rc5
2266

    
2267

    
2268
Version 2.0 rc5
2269
---------------
2270

    
2271
*(Released Wed, 20 May 2009)*
2272

    
2273
- fix a couple of bugs (validation, argument checks)
2274
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2275
- some small improvements to RAPI and IAllocator
2276
- make watcher automatically start the master daemon if down
2277

    
2278

    
2279
Version 2.0 rc4
2280
---------------
2281

    
2282
*(Released Mon, 27 Apr 2009)*
2283

    
2284
- change the OS list to not require locks; this helps with big clusters
2285
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2286
  volume group is broken
2287
- ``gnt-instance info``, without any arguments, doesn't run for all
2288
  instances anymore; either pass ``--all`` or pass the desired
2289
  instances; this helps against mistakes on big clusters where listing
2290
  the information for all instances takes a long time
2291
- miscellaneous doc and man pages fixes
2292

    
2293

    
2294
Version 2.0 rc3
2295
---------------
2296

    
2297
*(Released Wed, 8 Apr 2009)*
2298

    
2299
- Change the internal locking model of some ``gnt-node`` commands, in
2300
  order to reduce contention (and blocking of master daemon) when
2301
  batching many creation/reinstall jobs
2302
- Fixes to Xen soft reboot
2303
- No longer build documentation at build time, instead distribute it in
2304
  the archive, in order to reduce the need for the whole docbook/rst
2305
  toolchains
2306

    
2307

    
2308
Version 2.0 rc2
2309
---------------
2310

    
2311
*(Released Fri, 27 Mar 2009)*
2312

    
2313
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2314
- Fix watcher startup sequence, improves the behaviour of busy clusters
2315
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2316
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2317
  bind address and other places
2318
- Some documentation fixes and updates
2319

    
2320

    
2321
Version 2.0 rc1
2322
---------------
2323

    
2324
*(Released Mon, 2 Mar 2009)*
2325

    
2326
- More documentation updates, now all docs should be more-or-less
2327
  up-to-date
2328
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2329
  etc.)
2330
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2331
  and KVM)
2332
- Fix an issue related to $libdir/run/ganeti and cluster creation
2333

    
2334

    
2335
Version 2.0 beta2
2336
-----------------
2337

    
2338
*(Released Thu, 19 Feb 2009)*
2339

    
2340
- Xen PVM and KVM have switched the default value for the instance root
2341
  disk to the first partition on the first drive, instead of the whole
2342
  drive; this means that the OS installation scripts must be changed
2343
  accordingly
2344
- Man pages have been updated
2345
- RAPI has been switched by default to HTTPS, and the exported functions
2346
  should all work correctly
2347
- RAPI v1 has been removed
2348
- Many improvements to the KVM hypervisor
2349
- Block device errors are now better reported
2350
- Many other bugfixes and small improvements
2351

    
2352

    
2353
Version 2.0 beta1
2354
-----------------
2355

    
2356
*(Released Mon, 26 Jan 2009)*
2357

    
2358
- Version 2 is a general rewrite of the code and therefore the
2359
  differences are too many to list, see the design document for 2.0 in
2360
  the ``doc/`` subdirectory for more details
2361
- In this beta version there is not yet a migration path from 1.2 (there
2362
  will be one in the final 2.0 release)
2363
- A few significant changes are:
2364

    
2365
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2366
    various ``gnt-*`` commands are just front-ends to it
2367
  - all the commands are entered into, and executed from a job queue,
2368
    see the ``gnt-job(8)`` manpage
2369
  - the RAPI daemon supports read-write operations, secured by basic
2370
    HTTP authentication on top of HTTPS
2371
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2372
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2373
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2374
  - DRBD devices are using statically allocated minor numbers, which
2375
    will be assigned to existing instances during the migration process
2376
  - there is support for both Xen PVM and Xen HVM instances running on
2377
    the same cluster
2378
  - KVM virtualization is supported too
2379
  - file-based storage has been implemented, which means that it is
2380
    possible to run the cluster without LVM and DRBD storage, for
2381
    example using a shared filesystem exported from shared storage (and
2382
    still have live migration)
2383

    
2384

    
2385
Version 1.2.7
2386
-------------
2387

    
2388
*(Released Tue, 13 Jan 2009)*
2389

    
2390
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2391
- Reuse the old instance mac address by default on instance import, if
2392
  the instance name is the same.
2393
- Handle situations in which the node info rpc returns incomplete
2394
  results (issue 46)
2395
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2396
- Improved version of batcher:
2397

    
2398
  - state file support
2399
  - instance mac address support
2400
  - support for HVM clusters/instances
2401

    
2402
- Add an option to show the number of cpu sockets and nodes in
2403
  ``gnt-node list``
2404
- Support OSes that handle more than one version of the OS api (but do
2405
  not change the current API in any other way)
2406
- Fix ``gnt-node migrate``
2407
- ``gnt-debug`` man page
2408
- Fixes various more typos and small issues
2409
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2410

    
2411

    
2412
Version 1.2.6
2413
-------------
2414

    
2415
*(Released Wed, 24 Sep 2008)*
2416

    
2417
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2418
  type of disk exported to fully virtualized instances.
2419
- provide access to the serial console of HVM instances
2420
- instance auto_balance flag, set by default. If turned off it will
2421
  avoid warnings on cluster verify if there is not enough memory to fail
2422
  over an instance. in the future it will prevent automatically failing
2423
  it over when we will support that.
2424
- batcher tool for instance creation, see ``tools/README.batcher``
2425
- ``gnt-instance reinstall --select-os`` to interactively select a new
2426
  operating system when reinstalling an instance.
2427
- when changing the memory amount on instance modify a check has been
2428
  added that the instance will be able to start. also warnings are
2429
  emitted if the instance will not be able to fail over, if auto_balance
2430
  is true.
2431
- documentation fixes
2432
- sync fields between ``gnt-instance list/modify/add/import``
2433
- fix a race condition in drbd when the sync speed was set after giving
2434
  the device a remote peer.
2435

    
2436

    
2437
Version 1.2.5
2438
-------------
2439

    
2440
*(Released Tue, 22 Jul 2008)*
2441

    
2442
- note: the allowed size and number of tags per object were reduced
2443
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2444
- fixed twisted 8.x compatibility
2445
- fixed ``gnt-instance replace-disks`` with iallocator
2446
- add TCP keepalives on twisted connections to detect restarted nodes
2447
- disk increase support, see ``gnt-instance grow-disk``
2448
- implement bulk node/instance query for RAPI
2449
- add tags in node/instance listing (optional)
2450
- experimental migration (and live migration) support, read the man page
2451
  for ``gnt-instance migrate``
2452
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2453
  has some small improvements in handling its state file
2454

    
2455

    
2456
Version 1.2.4
2457
-------------
2458

    
2459
*(Released Fri, 13 Jun 2008)*
2460

    
2461
- Experimental readonly, REST-based remote API implementation;
2462
  automatically started on master node, TCP port 5080, if enabled by
2463
  ``--enable-rapi`` parameter to configure script.
2464
- Instance allocator support. Add and import instance accept a
2465
  ``--iallocator`` parameter, and call that instance allocator to decide
2466
  which node to use for the instance. The iallocator document describes
2467
  what's expected from an allocator script.
2468
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2469
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2470
  node is lost there is still enough memory to fail over the instances
2471
  that reside on it.
2472
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2473
  ``gnt-cluster verify``, to check for site-specific compliance. All the
2474
  hooks will run, and their output, if any, will be displayed. Any
2475
  failing hook will make the verification return an error value.
2476
- ``gnt-cluster verify`` now checks that its peers are reachable on the
2477
  primary and secondary interfaces
2478
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2479
  that is still declared as part of the cluster and has failed.
2480
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
2481
  specifying output fields, that just adds the chosen fields to the
2482
  default ones.
2483
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
2484
  export from the filesystem.
2485
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2486
  have been added. Using them you can enable/disable acpi and pae
2487
  support, and specify a path for a cd image to be exported to the
2488
  instance. These parameters as the name suggest only work on HVM
2489
  clusters.
2490
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2491
  PAE support will be set to the previously hardcoded values, but the
2492
  (previously hardcoded) path to the CDROM ISO image will be unset and
2493
  if required, needs to be set manually with ``gnt-instance modify``
2494
  after the upgrade.
2495
- The address to which an instance's VNC console is bound is now
2496
  selectable per-instance, rather than being cluster wide. Of course
2497
  this only applies to instances controlled via VNC, so currently just
2498
  applies to HVM clusters.
2499

    
2500

    
2501
Version 1.2.3
2502
-------------
2503

    
2504
*(Released Mon, 18 Feb 2008)*
2505

    
2506
- more tweaks to the disk activation code (especially helpful for DRBD)
2507
- change the default ``gnt-instance list`` output format, now there is
2508
  one combined status field (see the manpage for the exact values this
2509
  field will have)
2510
- some more fixes for the mac export to hooks change
2511
- make Ganeti not break with DRBD 8.2.x (which changed the version
2512
  format in ``/proc/drbd``) (issue 24)
2513
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2514
  template, allowing migration from DRBD0.7+MD to DRBD8
2515

    
2516

    
2517
Version 1.2.2
2518
-------------
2519

    
2520
*(Released Wed, 30 Jan 2008)*
2521

    
2522
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
2523
  support (issue 23)
2524
- add command aliases infrastructure and a few aliases
2525
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
2526
  man pages and the ``--help`` option of ``gnt-node
2527
  list``/``gnt-instance list``
2528
- fix ``gnt-backup list`` with down nodes (issue 21)
2529
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
2530
- fix the dist archive and add a check for including svn/git files in
2531
  the future
2532
- some developer-related changes: improve the burnin and the QA suite,
2533
  add an upload script for testing during development
2534

    
2535

    
2536
Version 1.2.1
2537
-------------
2538

    
2539
*(Released Wed, 16 Jan 2008)*
2540

    
2541
- experimental HVM support, read the install document, section
2542
  "Initializing the cluster"
2543
- allow for the PVM hypervisor per-instance kernel and initrd paths
2544
- add a new command ``gnt-cluster verify-disks`` which uses a new
2545
  algorithm to improve the reconnection of the DRBD pairs if the device
2546
  on the secondary node has gone away
2547
- make logical volume code auto-activate LVs at disk activation time
2548
- slightly improve the speed of activating disks
2549
- allow specification of the MAC address at instance creation time, and
2550
  changing it later via ``gnt-instance modify``
2551
- fix handling of external commands that generate lots of output on
2552
  stderr
2553
- update documentation with regard to minimum version of DRBD8 supported
2554

    
2555

    
2556
Version 1.2.0
2557
-------------
2558

    
2559
*(Released Tue, 4 Dec 2007)*
2560

    
2561
- Log the ``xm create`` output to the node daemon log on failure (to
2562
  help diagnosing the error)
2563
- In debug mode, log all external commands output if failed to the logs
2564
- Change parsing of lvm commands to ignore stderr
2565

    
2566

    
2567
Version 1.2 beta3
2568
-----------------
2569

    
2570
*(Released Wed, 28 Nov 2007)*
2571

    
2572
- Another round of updates to the DRBD 8 code to deal with more failures
2573
  in the replace secondary node operation
2574
- Some more logging of failures in disk operations (lvm, drbd)
2575
- A few documentation updates
2576
- QA updates
2577

    
2578

    
2579
Version 1.2 beta2
2580
-----------------
2581

    
2582
*(Released Tue, 13 Nov 2007)*
2583

    
2584
- Change configuration file format from Python's Pickle to JSON.
2585
  Upgrading is possible using the cfgupgrade utility.
2586
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
2587
  faster replace disks and is more stable (DRBD 8 has many improvements
2588
  compared to DRBD 0.7)
2589
- Added command line tags support (see man pages for ``gnt-instance``,
2590
  ``gnt-node``, ``gnt-cluster``)
2591
- Added instance rename support
2592
- Added multi-instance startup/shutdown
2593
- Added cluster rename support
2594
- Added ``gnt-node evacuate`` to simplify some node operations
2595
- Added instance reboot operation that can speedup reboot as compared to
2596
  stop and start
2597
- Soften the requirement that hostnames are in FQDN format
2598
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
2599
  reboots
2600
- Removed dependency on debian's patched fping that uses the
2601
  non-standard ``-S`` option
2602
- Now the OS definitions are searched for in multiple, configurable
2603
  paths (easier for distros to package)
2604
- Some changes to the hooks infrastructure (especially the new
2605
  post-configuration update hook)
2606
- Other small bugfixes
2607

    
2608
.. vim: set textwidth=72 syntax=rst :
2609
.. Local Variables:
2610
.. mode: rst
2611
.. fill-column: 72
2612
.. End: