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1
News
2
====
3

    
4

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

    
8
*(unreleased)*
9

    
10
- ``gnt-instance batch-create`` has been changed to use the bulk create
11
  opcode from Ganeti. This lead to incompatible changes in the format of
12
  the JSON file. It's now not a custom dict anymore but a dict
13
  compatible with the ``OpInstanceCreate`` opcode.
14
- Parent directories for file storage need now to be listed in
15
  ``$sysconfdir/ganeti/file-storage-paths``. ``cfgupgrade`` will write
16
  the file automatically based on old configuration values, but it can
17
  not distribute it across all nodes and the file contents should be
18
  verified. Use ``gnt-cluster copyfile
19
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
20
  upgraded. The reason for requiring this list of paths now is that
21
  before it would have been possible to inject new paths via RPC,
22
  allowing files to be created in arbitrary locations. The RPC protocol
23
  is protected using SSL/X.509 certificates, but as a design principle
24
  Ganeti does not permit arbitrary paths to be passed.
25
- The parsing of the variants file for OSes (see
26
  :manpage:`ganeti-os-interface(8)` has been slightly changed: now empty
27
  lines and comment lines are ignored for better readability.
28
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced.
29
  ``gnt-node add`` now invokes a new tool on the destination node, named
30
  ``prepare-node-join``, to configure the SSH daemon. Paramiko is no
31
  longer necessary to configure nodes' SSH daemons via ``gnt-node add``.
32
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
33
  for RAPI users. It allows granting permissions to query for
34
  information to a specific user without giving
35
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
36

    
37

    
38
Version 2.6.1
39
-------------
40

    
41
*(Released Fri, 12 Oct 2012)*
42

    
43
A small bugfix release. Among the bugs fixed:
44

    
45
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
46
  made the command unusable.
47
- Commands that issue many jobs don't fail anymore just because some jobs
48
  take so long that other jobs are archived.
49
- Failures during ``gnt-instance reinstall`` are reflected by the exit
50
  status.
51
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
52
  DRBD is enabled.
53
- When ``always_failover`` is set, ``--allow-failover`` is not required
54
  in migrate commands anymore.
55
- ``bash_completion`` works even if extglob is disabled.
56
- Fixed bug with locks that made failover for RDB-based instances fail.
57
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
58
  a random node instead of one based on the allocator metric.
59
- Support for newer versions of pylint and pep8.
60
- Hail doesn't fail anymore when trying to add an instance of type
61
  ``file``, ``sharedfile`` or ``rbd``.
62
- Added new Makefile target to rebuild the whole distribution, so that
63
  all files are included.
64

    
65

    
66
Version 2.6.0
67
-------------
68

    
69
*(Released Fri, 27 Jul 2012)*
70

    
71

    
72
.. attention:: The ``LUXI`` protocol has been made more consistent
73
   regarding its handling of command arguments. This, however, leads to
74
   incompatibility issues with previous versions. Please ensure that you
75
   restart Ganeti daemons soon after the upgrade, otherwise most
76
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
77
   pausing/resuming the watcher, cancelling and archiving jobs, querying
78
   the cluster configuration) will fail.
79

    
80

    
81
New features
82
~~~~~~~~~~~~
83

    
84
Instance run status
85
+++++++++++++++++++
86

    
87
The current ``admin_up`` field, which used to denote whether an instance
88
should be running or not, has been removed. Instead, ``admin_state`` is
89
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
90

    
91
The rational behind this is that an instance being “down” can have
92
different meanings:
93

    
94
- it could be down during a reboot
95
- it could be temporarily be down for a reinstall
96
- or it could be down because it is deprecated and kept just for its
97
  disk
98

    
99
The previous Boolean state was making it difficult to do capacity
100
calculations: should Ganeti reserve memory for a down instance? Now, the
101
tri-state field makes it clear:
102

    
103
- in ``up`` and ``down`` state, all resources are reserved for the
104
  instance, and it can be at any time brought up if it is down
105
- in ``offline`` state, only disk space is reserved for it, but not
106
  memory or CPUs
107

    
108
The field can have an extra use: since the transition between ``up`` and
109
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
110
transition between ``offline`` and ``down`` is done via ``gnt-instance
111
modify``, it is possible to given different rights to users. For
112
example, owners of an instance could be allowed to start/stop it, but
113
not transition it out of the offline state.
114

    
115
Instance policies and specs
116
+++++++++++++++++++++++++++
117

    
118
In previous Ganeti versions, an instance creation request was not
119
limited on the minimum size and on the maximum size just by the cluster
120
resources. As such, any policy could be implemented only in third-party
121
clients (RAPI clients, or shell wrappers over ``gnt-*``
122
tools). Furthermore, calculating cluster capacity via ``hspace`` again
123
required external input with regards to instance sizes.
124

    
125
In order to improve these workflows and to allow for example better
126
per-node group differentiation, we introduced instance specs, which
127
allow declaring:
128

    
129
- minimum instance disk size, disk count, memory size, cpu count
130
- maximum values for the above metrics
131
- and “standard” values (used in ``hspace`` to calculate the standard
132
  sized instances)
133

    
134
The minimum/maximum values can be also customised at node-group level,
135
for example allowing more powerful hardware to support bigger instance
136
memory sizes.
137

    
138
Beside the instance specs, there are a few other settings belonging to
139
the instance policy framework. It is possible now to customise, per
140
cluster and node-group:
141

    
142
- the list of allowed disk templates
143
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
144
- the maximum ratio of instance to spindles (see below for more
145
  information) for local storage
146

    
147
All these together should allow all tools that talk to Ganeti to know
148
what are the ranges of allowed values for instances and the
149
over-subscription that is allowed.
150

    
151
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
152
instance configuration, and the physical CPU configuration from the
153
node. For the spindle ratios however, we didn't track before these
154
values, so new parameters have been added:
155

    
156
- a new node parameter ``spindle_count``, defaults to 1, customisable at
157
  node group or node level
158
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
159

    
160
Note that spindles in this context doesn't need to mean actual
161
mechanical hard-drives; it's just a relative number for both the node
162
I/O capacity and instance I/O consumption.
163

    
164
Instance migration behaviour
165
++++++++++++++++++++++++++++
166

    
167
While live-migration is in general desirable over failover, it is
168
possible that for some workloads it is actually worse, due to the
169
variable time of the “suspend” phase during live migration.
170

    
171
To allow the tools to work consistently over such instances (without
172
having to hard-code instance names), a new backend parameter
173
``always_failover`` has been added to control the migration/failover
174
behaviour. When set to True, all migration requests for an instance will
175
instead fall-back to failover.
176

    
177
Instance memory ballooning
178
++++++++++++++++++++++++++
179

    
180
Initial support for memory ballooning has been added. The memory for an
181
instance is no longer fixed (backend parameter ``memory``), but instead
182
can vary between minimum and maximum values (backend parameters
183
``minmem`` and ``maxmem``). Currently we only change an instance's
184
memory when:
185

    
186
- live migrating or failing over and instance and the target node
187
  doesn't have enough memory
188
- user requests changing the memory via ``gnt-instance modify
189
  --runtime-memory``
190

    
191
Instance CPU pinning
192
++++++++++++++++++++
193

    
194
In order to control the use of specific CPUs by instance, support for
195
controlling CPU pinning has been added for the Xen, HVM and LXC
196
hypervisors. This is controlled by a new hypervisor parameter
197
``cpu_mask``; details about possible values for this are in the
198
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
199
VCPU-to-CPU mapping) form will work well only when all nodes in your
200
cluster have the same amount of CPUs.
201

    
202
Disk parameters
203
+++++++++++++++
204

    
205
Another area in which Ganeti was not customisable were the parameters
206
used for storage configuration, e.g. how many stripes to use for LVM,
207
DRBD resync configuration, etc.
208

    
209
To improve this area, we've added disks parameters, which are
210
customisable at cluster and node group level, and which allow to
211
specify various parameters for disks (DRBD has the most parameters
212
currently), for example:
213

    
214
- DRBD resync algorithm and parameters (e.g. speed)
215
- the default VG for meta-data volumes for DRBD
216
- number of stripes for LVM (plain disk template)
217
- the RBD pool
218

    
219
These parameters can be modified via ``gnt-cluster modify -D …`` and
220
``gnt-group modify -D …``, and are used at either instance creation (in
221
case of LVM stripes, for example) or at disk “activation” time
222
(e.g. resync speed).
223

    
224
Rados block device support
225
++++++++++++++++++++++++++
226

    
227
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
228
denoted by the ``rbd`` disk template type. This is considered
229
experimental, feedback is welcome. For details on configuring it, see
230
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
231

    
232
Master IP setup
233
+++++++++++++++
234

    
235
The existing master IP functionality works well only in simple setups (a
236
single network shared by all nodes); however, if nodes belong to
237
different networks, then the ``/32`` setup and lack of routing
238
information is not enough.
239

    
240
To allow the master IP to function well in more complex cases, the
241
system was reworked as follows:
242

    
243
- a master IP netmask setting has been added
244
- the master IP activation/turn-down code was moved from the node daemon
245
  to a separate script
246
- whether to run the Ganeti-supplied master IP script or a user-supplied
247
  on is a ``gnt-cluster init`` setting
248

    
249
Details about the location of the standard and custom setup scripts are
250
in the man page :manpage:`gnt-cluster(8)`; for information about the
251
setup script protocol, look at the Ganeti-supplied script.
252

    
253
SPICE support
254
+++++++++++++
255

    
256
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
257
improved.
258

    
259
It is now possible to use TLS-protected connections, and when renewing
260
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
261
it is now possible to specify spice or spice CA certificates. Also, it
262
is possible to configure a password for SPICE sessions via the
263
hypervisor parameter ``spice_password_file``.
264

    
265
There are also new parameters to control the compression and streaming
266
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
267
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
268
for the spice parameters.
269

    
270
Lastly, it is now possible to see the SPICE connection information via
271
``gnt-instance console``.
272

    
273
OVF converter
274
+++++++++++++
275

    
276
A new tool (``tools/ovfconverter``) has been added that supports
277
conversion between Ganeti and the `Open Virtualization Format
278
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
279
from).
280

    
281
This relies on the ``qemu-img`` tool to convert the disk formats, so the
282
actual compatibility with other virtualization solutions depends on it.
283

    
284
Confd daemon changes
285
++++++++++++++++++++
286

    
287
The configuration query daemon (``ganeti-confd``) is now optional, and
288
has been rewritten in Haskell; whether to use the daemon at all, use the
289
Python (default) or the Haskell version is selectable at configure time
290
via the ``--enable-confd`` parameter, which can take one of the
291
``haskell``, ``python`` or ``no`` values. If not used, disabling the
292
daemon will result in a smaller footprint; for larger systems, we
293
welcome feedback on the Haskell version which might become the default
294
in future versions.
295

    
296
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
297
daemon running. The Python version doesn't implement the new call.
298

    
299

    
300
User interface changes
301
~~~~~~~~~~~~~~~~~~~~~~
302

    
303
We have replaced the ``--disks`` option of ``gnt-instance
304
replace-disks`` with a more flexible ``--disk`` option, which allows
305
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
306
disk size and mode can be changed upon recreation (via ``gnt-instance
307
recreate-disks``, which accepts the same ``--disk`` option).
308

    
309
As many people are used to a ``show`` command, we have added that as an
310
alias to ``info`` on all ``gnt-*`` commands.
311

    
312
The ``gnt-instance grow-disk`` command has a new mode in which it can
313
accept the target size of the disk, instead of the delta; this can be
314
more safe since two runs in absolute mode will be idempotent, and
315
sometimes it's also easier to specify the desired size directly.
316

    
317
Also the handling of instances with regard to offline secondaries has
318
been improved. Instance operations should not fail because one of it's
319
secondary nodes is offline, even though it's safe to proceed.
320

    
321
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
322
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
323
minors to instance name.
324

    
325
API changes
326
~~~~~~~~~~~
327

    
328
RAPI coverage has improved, with (for example) new resources for
329
recreate-disks, node power-cycle, etc.
330

    
331
Compatibility
332
~~~~~~~~~~~~~
333

    
334
There is partial support for ``xl`` in the Xen hypervisor; feedback is
335
welcome.
336

    
337
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
338
whether to still support Python 2.4 or move to Python 2.6 as minimum
339
required version.
340

    
341
Support for Fedora has been slightly improved; the provided example
342
init.d script should work better on it and the INSTALL file should
343
document the needed dependencies.
344

    
345
Internal changes
346
~~~~~~~~~~~~~~~~
347

    
348
The deprecated ``QueryLocks`` LUXI request has been removed. Use
349
``Query(what=QR_LOCK, ...)`` instead.
350

    
351
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
352
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
353
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
354
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
355
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
356

    
357
RAPI client: ``CertificateError`` now derives from
358
``GanetiApiError``. This should make it more easy to handle Ganeti
359
errors.
360

    
361
Deprecation warnings due to PyCrypto/paramiko import in
362
``tools/setup-ssh`` have been silenced, as usually they are safe; please
363
make sure to run an up-to-date paramiko version, if you use this tool.
364

    
365
The QA scripts now depend on Python 2.5 or above (the main code base
366
still works with Python 2.4).
367

    
368
The configuration file (``config.data``) is now written without
369
indentation for performance reasons; if you want to edit it, it can be
370
re-formatted via ``tools/fmtjson``.
371

    
372
A number of bugs has been fixed in the cluster merge tool.
373

    
374
``x509`` certification verification (used in import-export) has been
375
changed to allow the same clock skew as permitted by the cluster
376
verification. This will remove some rare but hard to diagnose errors in
377
import-export.
378

    
379

    
380
Version 2.6.0 rc4
381
-----------------
382

    
383
*(Released Thu, 19 Jul 2012)*
384

    
385
Very few changes from rc4 to the final release, only bugfixes:
386

    
387
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
388
  instance, fix CDROM booting for KVM instances)
389
- fixed node group modification of node parameters
390
- fixed issue in LUClusterVerifyGroup with multi-group clusters
391
- fixed generation of bash completion to ensure a stable ordering
392
- fixed a few typos
393

    
394

    
395
Version 2.6.0 rc3
396
-----------------
397

    
398
*(Released Fri, 13 Jul 2012)*
399

    
400
Third release candidate for 2.6. The following changes were done from
401
rc3 to rc4:
402

    
403
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
404
- Fixed an inconsistency in the LUXI protocol with the provided
405
  arguments (NOT backwards compatible)
406
- Fixed a bug with node groups ipolicy where ``min`` was greater than
407
  the cluster ``std`` value
408
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
409
  easier instance debugging on nodes (requires ``hconfd`` to work)
410

    
411

    
412
Version 2.6.0 rc2
413
-----------------
414

    
415
*(Released Tue, 03 Jul 2012)*
416

    
417
Second release candidate for 2.6. The following changes were done from
418
rc2 to rc3:
419

    
420
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
421
  master candidates
422
- Fixed a RAPI regression on missing beparams/memory
423
- Fixed redistribution of files on offline nodes
424
- Added possibility to run activate-disks even though secondaries are
425
  offline. With this change it relaxes also the strictness on some other
426
  commands which use activate disks internally:
427
  * ``gnt-instance start|reboot|rename|backup|export``
428
- Made it possible to remove safely an instance if its secondaries are
429
  offline
430
- Made it possible to reinstall even though secondaries are offline
431

    
432

    
433
Version 2.6.0 rc1
434
-----------------
435

    
436
*(Released Mon, 25 Jun 2012)*
437

    
438
First release candidate for 2.6. The following changes were done from
439
rc1 to rc2:
440

    
441
- Fixed bugs with disk parameters and ``rbd`` templates as well as
442
  ``instance_os_add``
443
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
444
  behaviour. It supports now the modify operation
445
- ``hcheck`` implemented to analyze cluster health and possibility of
446
  improving health by rebalance
447
- ``hbal`` has been improved in dealing with split instances
448

    
449

    
450
Version 2.6.0 beta2
451
-------------------
452

    
453
*(Released Mon, 11 Jun 2012)*
454

    
455
Second beta release of 2.6. The following changes were done from beta2
456
to rc1:
457

    
458
- Fixed ``daemon-util`` with non-root user models
459
- Fixed creation of plain instances with ``--no-wait-for-sync``
460
- Fix wrong iv_names when running ``cfgupgrade``
461
- Export more information in RAPI group queries
462
- Fixed bug when changing instance network interfaces
463
- Extended burnin to do NIC changes
464
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
465
- Changed default for DRBD barriers
466
- Fixed DRBD error reporting for syncer rate
467
- Verify the options on disk parameters
468

    
469
And of course various fixes to documentation and improved unittests and
470
QA.
471

    
472

    
473
Version 2.6.0 beta1
474
-------------------
475

    
476
*(Released Wed, 23 May 2012)*
477

    
478
First beta release of 2.6. The following changes were done from beta1 to
479
beta2:
480

    
481
- integrated patch for distributions without ``start-stop-daemon``
482
- adapted example init.d script to work on Fedora
483
- fixed log handling in Haskell daemons
484
- adapted checks in the watcher for pycurl linked against libnss
485
- add partial support for ``xl`` instead of ``xm`` for Xen
486
- fixed a type issue in cluster verification
487
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
488
  clusters)
489

    
490
Plus integrated fixes from the 2.5 branch:
491

    
492
- fixed ``kvm-ifup`` to use ``/bin/bash``
493
- fixed parallel build failures
494
- KVM live migration when using a custom keymap
495

    
496

    
497
Version 2.5.2
498
-------------
499

    
500
*(Released Tue, 24 Jul 2012)*
501

    
502
A small bugfix release, with no new features:
503

    
504
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
505
  different default shell (e.g. Debian, Ubuntu)
506
- fixed KVM startup and live migration with a custom keymap (fixes Issue
507
  243 and Debian bug #650664)
508
- fixed compatibility with KVM versions that don't support multiple boot
509
  devices (fixes Issue 230 and Debian bug #624256)
510

    
511
Additionally, a few fixes were done to the build system (fixed parallel
512
build failures) and to the unittests (fixed race condition in test for
513
FileID functions, and the default enable/disable mode for QA test is now
514
customisable).
515

    
516

    
517
Version 2.5.1
518
-------------
519

    
520
*(Released Fri, 11 May 2012)*
521

    
522
A small bugfix release.
523

    
524
The main issues solved are on the topic of compatibility with newer LVM
525
releases:
526

    
527
- fixed parsing of ``lv_attr`` field
528
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
529
  the ``--force`` flag is needed
530

    
531
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
532
to accept kernel 3.x too (was hardcoded to 2.6.*).
533

    
534
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
535
of hook results and that also made display of other errors suboptimal
536
was fixed; the code behaves now like 2.4 and earlier.
537

    
538
Another change in 2.5, the cleanup of the OS scripts environment, is too
539
aggressive: it removed even the ``PATH`` variable, which requires the OS
540
scripts to *always* need to export it. Since this is a bit too strict,
541
we now export a minimal PATH, the same that we export for hooks.
542

    
543
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
544
integrated into this release.
545

    
546
Finally, a few other miscellaneous changes were done (no new features,
547
just small improvements):
548

    
549
- Fix ``gnt-group --help`` display
550
- Fix hardcoded Xen kernel path
551
- Fix grow-disk handling of invalid units
552
- Update synopsis for ``gnt-cluster repair-disk-sizes``
553
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
554

    
555

    
556
Version 2.5.0
557
-------------
558

    
559
*(Released Thu, 12 Apr 2012)*
560

    
561
Incompatible/important changes and bugfixes
562
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
563

    
564
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
565
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
566
  to match the underlying LUXI interface.
567
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
568
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
569
  not maintain backwards-compatibility as the underlying operation
570
  changed in an incompatible way. The RAPI client can talk to old
571
  servers, but it needs to be told so as the return value changed.
572
- When creating file-based instances via RAPI, the ``file_driver``
573
  parameter no longer defaults to ``loop`` and must be specified.
574
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
575
  ``link`` instead.
576
- Support for the undocumented and deprecated RAPI instance creation
577
  request format version 0 has been dropped. Use version 1, supported
578
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
579
- Pyparsing 1.4.6 or above is required, see :doc:`installation
580
  documentation <install>`.
581
- The "cluster-verify" hooks are now executed per group by the
582
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
583
  if you just run ``gnt-cluster verify``, which generates one opcode per
584
  group.
585
- The environment as passed to the OS scripts is cleared, and thus no
586
  environment variables defined in the node daemon's environment will be
587
  inherited by the scripts.
588
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
589
  deprecated.
590
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
591
  support operations involving multiple node groups.
592
- Offline nodes are ignored when failing over an instance.
593
- Support for KVM version 1.0, which changed the version reporting format
594
  from 3 to 2 digits.
595
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
596
  removal.
597
- ``Makefile`` is now compatible with Automake 1.11.2
598
- Includes all bugfixes made in the 2.4 series
599

    
600
New features
601
~~~~~~~~~~~~
602

    
603
- The ganeti-htools project has been merged into the ganeti-core source
604
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
605
- Implemented support for :doc:`shared storage <design-shared-storage>`.
606
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
607
  GPT-style partition tables (requires `parted
608
  <http://www.gnu.org/s/parted/>`_).
609
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
610
- Allowed adding tags on instance creation.
611
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
612
- Allow instances to be started in a paused state, enabling the user to
613
  see the complete console output on boot using the console.
614
- Added new hypervisor flag to control default reboot behaviour
615
  (``reboot_behavior``).
616
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
617
- Improved out-of-band management support:
618

    
619
  - Added ``gnt-node health`` command reporting the health status of
620
    nodes.
621
  - Added ``gnt-node power`` command to manage power status of nodes.
622
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
623

    
624
- Instance migration can fall back to failover if instance is not
625
  running.
626
- Filters can be used when listing nodes, instances, groups and locks;
627
  see *ganeti(7)* manpage.
628
- Added post-execution status as variables to :doc:`hooks <hooks>`
629
  environment.
630
- Instance tags are exported/imported together with the instance.
631
- When given an explicit job ID, ``gnt-job info`` will work for archived
632
  jobs.
633
- Jobs can define dependencies on other jobs (not yet supported via
634
  RAPI or command line, but used by internal commands and usable via
635
  LUXI).
636

    
637
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
638
    dependencies.
639

    
640
- Instance failover is now available as a RAPI resource
641
  (``/2/instances/[instance_name]/failover``).
642
- ``gnt-instance info`` defaults to static information if primary node
643
  is offline.
644
- Opcodes have a new ``comment`` attribute.
645
- Added basic SPICE support to KVM hypervisor.
646
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
647

    
648
Node group improvements
649
~~~~~~~~~~~~~~~~~~~~~~~
650

    
651
- ``gnt-cluster verify`` has been modified to check groups separately,
652
  thereby improving performance.
653
- Node group support has been added to ``gnt-cluster verify-disks``,
654
  which now operates per node group.
655
- Watcher has been changed to work better with node groups.
656

    
657
  - One process and state file per node group.
658
  - Slow watcher in one group doesn't block other group's watcher.
659

    
660
- Added new command, ``gnt-group evacuate``, to move all instances in a
661
  node group to other groups.
662
- Added ``gnt-instance change-group`` to move an instance to another
663
  node group.
664
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
665
  per-group operations.
666
- Node groups can be tagged.
667
- Some operations switch from an exclusive to a shared lock as soon as
668
  possible.
669
- Instance's primary and secondary nodes' groups are now available as
670
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
671
  and ``snodes.group.uuid``).
672

    
673
Misc
674
~~~~
675

    
676
- Numerous updates to documentation and manpages.
677

    
678
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
679
    descriptions.
680
  - Some opcode/job results are now also documented, see :doc:`RAPI
681
    <rapi>`.
682

    
683
- A lockset's internal lock is now also visible in lock monitor.
684
- Log messages from job queue workers now contain information about the
685
  opcode they're processing.
686
- ``gnt-instance console`` no longer requires the instance lock.
687
- A short delay when waiting for job changes reduces the number of LUXI
688
  requests significantly.
689
- DRBD metadata volumes are overwritten with zeros during disk creation.
690
- Out-of-band commands no longer acquire the cluster lock in exclusive
691
  mode.
692
- ``devel/upload`` now uses correct permissions for directories.
693

    
694

    
695
Version 2.5.0 rc6
696
-----------------
697

    
698
*(Released Fri, 23 Mar 2012)*
699

    
700
This was the sixth release candidate of the 2.5 series.
701

    
702

    
703
Version 2.5.0 rc5
704
-----------------
705

    
706
*(Released Mon, 9 Jan 2012)*
707

    
708
This was the fifth release candidate of the 2.5 series.
709

    
710

    
711
Version 2.5.0 rc4
712
-----------------
713

    
714
*(Released Thu, 27 Oct 2011)*
715

    
716
This was the fourth release candidate of the 2.5 series.
717

    
718

    
719
Version 2.5.0 rc3
720
-----------------
721

    
722
*(Released Wed, 26 Oct 2011)*
723

    
724
This was the third release candidate of the 2.5 series.
725

    
726

    
727
Version 2.5.0 rc2
728
-----------------
729

    
730
*(Released Tue, 18 Oct 2011)*
731

    
732
This was the second release candidate of the 2.5 series.
733

    
734

    
735
Version 2.5.0 rc1
736
-----------------
737

    
738
*(Released Tue, 4 Oct 2011)*
739

    
740
This was the first release candidate of the 2.5 series.
741

    
742

    
743
Version 2.5.0 beta3
744
-------------------
745

    
746
*(Released Wed, 31 Aug 2011)*
747

    
748
This was the third beta release of the 2.5 series.
749

    
750

    
751
Version 2.5.0 beta2
752
-------------------
753

    
754
*(Released Mon, 22 Aug 2011)*
755

    
756
This was the second beta release of the 2.5 series.
757

    
758

    
759
Version 2.5.0 beta1
760
-------------------
761

    
762
*(Released Fri, 12 Aug 2011)*
763

    
764
This was the first beta release of the 2.5 series.
765

    
766

    
767
Version 2.4.5
768
-------------
769

    
770
*(Released Thu, 27 Oct 2011)*
771

    
772
- Fixed bug when parsing command line parameter values ending in
773
  backslash
774
- Fixed assertion error after unclean master shutdown
775
- Disable HTTP client pool for RPC, significantly reducing memory usage
776
  of master daemon
777
- Fixed queue archive creation with wrong permissions
778

    
779

    
780
Version 2.4.4
781
-------------
782

    
783
*(Released Tue, 23 Aug 2011)*
784

    
785
Small bug-fixes:
786

    
787
- Fixed documentation for importing with ``--src-dir`` option
788
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
789
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
790

    
791

    
792
Version 2.4.3
793
-------------
794

    
795
*(Released Fri, 5 Aug 2011)*
796

    
797
Many bug-fixes and a few small features:
798

    
799
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
800
  issues when you tried to add an instance with two MAC addresses in one
801
  request
802
- KVM: fixed per-instance stored UID value
803
- KVM: configure bridged NICs at migration start
804
- KVM: Fix a bug where instance will not start with never KVM versions
805
  (>= 0.14)
806
- Added OS search path to ``gnt-cluster info``
807
- Fixed an issue with ``file_storage_dir`` where you were forced to
808
  provide an absolute path, but the documentation states it is a
809
  relative path, the documentation was right
810
- Added a new parameter to instance stop/start called ``--no-remember``
811
  that will make the state change to not be remembered
812
- Implemented ``no_remember`` at RAPI level
813
- Improved the documentation
814
- Node evacuation: don't call IAllocator if node is already empty
815
- Fixed bug in DRBD8 replace disks on current nodes
816
- Fixed bug in recreate-disks for DRBD instances
817
- Moved assertion checking locks in ``gnt-instance replace-disks``
818
  causing it to abort with not owning the right locks for some situation
819
- Job queue: Fixed potential race condition when cancelling queued jobs
820
- Fixed off-by-one bug in job serial generation
821
- ``gnt-node volumes``: Fix instance names
822
- Fixed aliases in bash completion
823
- Fixed a bug in reopening log files after being sent a SIGHUP
824
- Added a flag to burnin to allow specifying VCPU count
825
- Bugfixes to non-root Ganeti configuration
826

    
827

    
828
Version 2.4.2
829
-------------
830

    
831
*(Released Thu, 12 May 2011)*
832

    
833
Many bug-fixes and a few new small features:
834

    
835
- Fixed a bug related to log opening failures
836
- Fixed a bug in instance listing with orphan instances
837
- Fixed a bug which prevented resetting the cluster-level node parameter
838
  ``oob_program`` to the default
839
- Many fixes related to the ``cluster-merge`` tool
840
- Fixed a race condition in the lock monitor, which caused failures
841
  during (at least) creation of many instances in parallel
842
- Improved output for gnt-job info
843
- Removed the quiet flag on some ssh calls which prevented debugging
844
  failures
845
- Improved the N+1 failure messages in cluster verify by actually
846
  showing the memory values (needed and available)
847
- Increased lock attempt timeouts so that when executing long operations
848
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
849
  too early and thus prevent the use of the 'fair' mechanism
850
- Changed instance query data (``gnt-instance info``) to not acquire
851
  locks unless needed, thus allowing its use on locked instance if only
852
  static information is asked for
853
- Improved behaviour with filesystems that do not support rename on an
854
  opened file
855
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
856
  kept locks on all nodes during the wipe, which is unneeded
857
- Fixed ``gnt-watcher`` handling of errors during hooks execution
858
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
859
  10GiB) which caused the wipe to fail right at the end in some cases
860
- Fixed master IP activation when doing master failover with no-voting
861
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
862
  the master node itself
863
- Fixed potential data-loss in under disk full conditions, where Ganeti
864
  wouldn't check correctly the return code and would consider
865
  partially-written files 'correct'
866
- Fixed bug related to multiple VGs and DRBD disk replacing
867
- Added new disk parameter ``metavg`` that allows placement of the meta
868
  device for DRBD in a different volume group
869
- Fixed error handling in the node daemon when the system libc doesn't
870
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
871
- Fixed lock release during replace-disks, which kept cluster-wide locks
872
  when doing disk replaces with an iallocator script
873
- Added check for missing bridges in cluster verify
874
- Handle EPIPE errors while writing to the terminal better, so that
875
  piping the output to e.g. ``less`` doesn't cause a backtrace
876
- Fixed rare case where a ^C during Luxi calls could have been
877
  interpreted as server errors, instead of simply terminating
878
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
879
  assign-nodes``)
880
- Added a few more parameters to the KVM hypervisor, allowing a second
881
  CDROM, custom disk type for CDROMs and a floppy image
882
- Removed redundant message in instance rename when the name is given
883
  already as a FQDN
884
- Added option to ``gnt-instance recreate-disks`` to allow creating the
885
  disks on new nodes, allowing recreation when the original instance
886
  nodes are completely gone
887
- Added option when converting disk templates to DRBD to skip waiting
888
  for the resync, in order to make the instance available sooner
889
- Added two new variables to the OS scripts environment (containing the
890
  instance's nodes)
891
- Made the root_path and optional parameter for the xen-pvm hypervisor,
892
  to allow use of ``pvgrub`` as bootloader
893
- Changed the instance memory modifications to only check out-of-memory
894
  conditions on memory increases, and turned the secondary node warnings
895
  into errors (they can still be overridden via ``--force``)
896
- Fixed the handling of a corner case when the Python installation gets
897
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
898
  to execute a command that doesn't exist
899
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
900
  node of the instance returned failures during instance shutdown; this
901
  adds the option ``--ignore-consistency`` to gnt-instance move
902

    
903
And as usual, various improvements to the error messages, documentation
904
and man pages.
905

    
906

    
907
Version 2.4.1
908
-------------
909

    
910
*(Released Wed, 09 Mar 2011)*
911

    
912
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
913
the RAPI users file if run twice (even with ``--dry-run``).
914

    
915
The release fixes that bug (nothing else changed).
916

    
917

    
918
Version 2.4.0
919
-------------
920

    
921
*(Released Mon, 07 Mar 2011)*
922

    
923
Final 2.4.0 release. Just a few small fixes:
924

    
925
- Fixed RAPI node evacuate
926
- Fixed the kvm-ifup script
927
- Fixed internal error handling for special job cases
928
- Updated man page to specify the escaping feature for options
929

    
930

    
931
Version 2.4.0 rc3
932
-----------------
933

    
934
*(Released Mon, 28 Feb 2011)*
935

    
936
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
937
that this feature wiped the disks of the wrong instance, leading to loss
938
of data.
939

    
940
Other changes:
941

    
942
- Fixed title of query field containing instance name
943
- Expanded the glossary in the documentation
944
- Fixed one unittest (internal issue)
945

    
946

    
947
Version 2.4.0 rc2
948
-----------------
949

    
950
*(Released Mon, 21 Feb 2011)*
951

    
952
A number of bug fixes plus just a couple functionality changes.
953

    
954
On the user-visible side, the ``gnt-* list`` command output has changed
955
with respect to "special" field states. The current rc1 style of display
956
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
957
the default output mode special fields states are displayed as follows:
958

    
959
- Offline resource: ``*``
960
- Unavailable/not applicable: ``-``
961
- Data missing (RPC failure): ``?``
962
- Unknown field: ``??``
963

    
964
Another user-visible change is the addition of ``--force-join`` to
965
``gnt-node add``.
966

    
967
As for bug fixes:
968

    
969
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
970
- Fixed regression in RAPI/instance reinstall where all parameters were
971
  required (instead of optional)
972
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
973
- Fixed iallocator usage (offline nodes were not considered offline)
974
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
975
- Fixed hypervisor and OS parameter validation with respect to
976
  non-vm_capable nodes
977
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
978
  cosmetic)
979
- Fixed ``tools/listrunner`` with respect to agent-based usage
980

    
981

    
982
Version 2.4.0 rc1
983
-----------------
984

    
985
*(Released Fri,  4 Feb 2011)*
986

    
987
Many changes and fixes since the beta1 release. While there were some
988
internal changes, the code has been mostly stabilised for the RC
989
release.
990

    
991
Note: the dumb allocator was removed in this release, as it was not kept
992
up-to-date with the IAllocator protocol changes. It is recommended to
993
use the ``hail`` command from the ganeti-htools package.
994

    
995
Note: the 2.4 and up versions of Ganeti are not compatible with the
996
0.2.x branch of ganeti-htools. You need to upgrade to
997
ganeti-htools-0.3.0 (or later).
998

    
999
Regressions fixed from 2.3
1000
~~~~~~~~~~~~~~~~~~~~~~~~~~
1001

    
1002
- Fixed the ``gnt-cluster verify-disks`` command
1003
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1004
  serially on nodes)
1005
- Fixed disk adoption breakage
1006
- Fixed wrong headers in instance listing for field aliases
1007

    
1008
Other bugs fixed
1009
~~~~~~~~~~~~~~~~
1010

    
1011
- Fixed corner case in KVM handling of NICs
1012
- Fixed many cases of wrong handling of non-vm_capable nodes
1013
- Fixed a bug where a missing instance symlink was not possible to
1014
  recreate with any ``gnt-*`` command (now ``gnt-instance
1015
  activate-disks`` does it)
1016
- Fixed the volume group name as reported by ``gnt-cluster
1017
  verify-disks``
1018
- Increased timeouts for the import-export code, hopefully leading to
1019
  fewer aborts due network or instance timeouts
1020
- Fixed bug in ``gnt-node list-storage``
1021
- Fixed bug where not all daemons were started on cluster
1022
  initialisation, but only at the first watcher run
1023
- Fixed many bugs in the OOB implementation
1024
- Fixed watcher behaviour in presence of instances with offline
1025
  secondaries
1026
- Fixed instance list output for instances running on the wrong node
1027
- a few fixes to the cluster-merge tool, but it still cannot merge
1028
  multi-node groups (currently it is not recommended to use this tool)
1029

    
1030

    
1031
Improvements
1032
~~~~~~~~~~~~
1033

    
1034
- Improved network configuration for the KVM hypervisor
1035
- Added e1000 as a supported NIC for Xen-HVM
1036
- Improved the lvmstrap tool to also be able to use partitions, as
1037
  opposed to full disks
1038
- Improved speed of disk wiping (the cluster parameter
1039
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1040
  of instance creations
1041
- Added documentation for the OS parameters
1042
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1043
  hypervisor is not responding
1044
- Added display of blacklisted and hidden OS information in
1045
  ``gnt-cluster info``
1046
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1047
  NIC and node parameters, which might create problems with currently
1048
  invalid (but undetected) configuration files, but prevents validation
1049
  failures when unrelated parameters are modified
1050
- Changed cluster initialisation to wait for the master daemon to become
1051
  available
1052
- Expanded the RAPI interface:
1053

    
1054
  - Added config redistribution resource
1055
  - Added activation/deactivation of instance disks
1056
  - Added export of console information
1057

    
1058
- Implemented log file reopening on SIGHUP, which allows using
1059
  logrotate(8) for the Ganeti log files
1060
- Added a basic OOB helper script as an example
1061

    
1062

    
1063
Version 2.4.0 beta1
1064
-------------------
1065

    
1066
*(Released Fri, 14 Jan 2011)*
1067

    
1068
User-visible
1069
~~~~~~~~~~~~
1070

    
1071
- Fixed timezone issues when formatting timestamps
1072
- Added support for node groups, available via ``gnt-group`` and other
1073
  commands
1074
- Added out-of-band framework and management, see :doc:`design
1075
  document <design-oob>`
1076
- Removed support for roman numbers from ``gnt-node list`` and
1077
  ``gnt-instance list``.
1078
- Allowed modification of master network interface via ``gnt-cluster
1079
  modify --master-netdev``
1080
- Accept offline secondaries while shutting down instance disks
1081
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1082
- Added support for multiple LVM volume groups
1083
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1084
  requested
1085
- Added commands to list available fields:
1086

    
1087
  - ``gnt-node list-fields``
1088
  - ``gnt-group list-fields``
1089
  - ``gnt-instance list-fields``
1090

    
1091
- Updated documentation and man pages
1092

    
1093
Integration
1094
~~~~~~~~~~~
1095

    
1096
- Moved ``rapi_users`` file into separate directory, now named
1097
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1098
  symlink
1099
- Added new tool for running commands on many machines,
1100
  ``tools/ganeti-listrunner``
1101
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1102
  improving the ``gnt-instance console`` output
1103
- Allowed customisation of disk index separator at ``configure`` time
1104
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1105
- Added support for non-partitioned md disks in ``lvmstrap``
1106
- Added script to gracefully power off KVM instances
1107
- Split ``utils`` module into smaller parts
1108
- Changed query operations to return more detailed information, e.g.
1109
  whether an information is unavailable due to an offline node. To use
1110
  this new functionality, the LUXI call ``Query`` must be used. Field
1111
  information is now stored by the master daemon and can be retrieved
1112
  using ``QueryFields``. Instances, nodes and groups can also be queried
1113
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1114
  exposed via RAPI). The following commands make use of this
1115
  infrastructure change:
1116

    
1117
  - ``gnt-group list``
1118
  - ``gnt-group list-fields``
1119
  - ``gnt-node list``
1120
  - ``gnt-node list-fields``
1121
  - ``gnt-instance list``
1122
  - ``gnt-instance list-fields``
1123
  - ``gnt-debug locks``
1124

    
1125
Remote API
1126
~~~~~~~~~~
1127

    
1128
- New RAPI resources (see :doc:`rapi`):
1129

    
1130
  - ``/2/modify``
1131
  - ``/2/groups``
1132
  - ``/2/groups/[group_name]``
1133
  - ``/2/groups/[group_name]/assign-nodes``
1134
  - ``/2/groups/[group_name]/modify``
1135
  - ``/2/groups/[group_name]/rename``
1136
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1137

    
1138
- RAPI changes:
1139

    
1140
  - Implemented ``no_install`` for instance creation
1141
  - Implemented OS parameters for instance reinstallation, allowing
1142
    use of special settings on reinstallation (e.g. for preserving data)
1143

    
1144
Misc
1145
~~~~
1146

    
1147
- Added IPv6 support in import/export
1148
- Pause DRBD synchronization while wiping disks on instance creation
1149
- Updated unittests and QA scripts
1150
- Improved network parameters passed to KVM
1151
- Converted man pages from docbook to reStructuredText
1152

    
1153

    
1154
Version 2.3.1
1155
-------------
1156

    
1157
*(Released Mon, 20 Dec 2010)*
1158

    
1159
Released version 2.3.1~rc1 without any changes.
1160

    
1161

    
1162
Version 2.3.1 rc1
1163
-----------------
1164

    
1165
*(Released Wed, 1 Dec 2010)*
1166

    
1167
- impexpd: Disable OpenSSL compression in socat if possible (backport
1168
  from master, commit e90739d625b, see :doc:`installation guide
1169
  <install-quick>` for details)
1170
- Changed unittest coverage report to exclude test scripts
1171
- Added script to check version format
1172

    
1173

    
1174
Version 2.3.0
1175
-------------
1176

    
1177
*(Released Wed, 1 Dec 2010)*
1178

    
1179
Released version 2.3.0~rc1 without any changes.
1180

    
1181

    
1182
Version 2.3.0 rc1
1183
-----------------
1184

    
1185
*(Released Fri, 19 Nov 2010)*
1186

    
1187
A number of bugfixes and documentation updates:
1188

    
1189
- Update ganeti-os-interface documentation
1190
- Fixed a bug related to duplicate MACs or similar items which should be
1191
  unique
1192
- Fix breakage in OS state modify
1193
- Reinstall instance: disallow offline secondaries (fixes bug related to
1194
  OS changing but reinstall failing)
1195
- plus all the other fixes between 2.2.1 and 2.2.2
1196

    
1197

    
1198
Version 2.3.0 rc0
1199
-----------------
1200

    
1201
*(Released Tue, 2 Nov 2010)*
1202

    
1203
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1204
- Fixed master failover race with watcher
1205
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1206
  configuration
1207
- Accept previously stopped instance for export with instance removal
1208
- Simplify and extend the environment variables for instance OS scripts
1209
- Added new node flags, ``master_capable`` and ``vm_capable``
1210
- Added optional instance disk wiping prior during allocation. This is a
1211
  cluster-wide option and can be set/modified using
1212
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1213
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1214
  :doc:`install-quick`
1215
- Added a new watcher option (``--ignore-pause``)
1216
- Added option to ignore offline node on instance start/stop
1217
  (``--ignore-offline``)
1218
- Allow overriding OS parameters with ``gnt-instance reinstall``
1219
- Added ability to change node's secondary IP address using ``gnt-node
1220
  modify``
1221
- Implemented privilege separation for all daemons except
1222
  ``ganeti-noded``, see ``configure`` options
1223
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1224
  verify``
1225
- Implemented job priorities (see ``ganeti(7)`` manpage)
1226
- Ignore failures while shutting down instances during failover from
1227
  offline node
1228
- Exit daemon's bootstrap process only once daemon is ready
1229
- Export more information via ``LUInstanceQuery``/remote API
1230
- Improved documentation, QA and unittests
1231
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1232
  restart if the file was created or changed
1233
- Added LUXI protocol version sent with each request and response,
1234
  allowing detection of server/client mismatches
1235
- Moved the Python scripts among gnt-* and ganeti-* into modules
1236
- Moved all code related to setting up SSH to an external script,
1237
  ``setup-ssh``
1238
- Infrastructure changes for node group support in future versions
1239

    
1240

    
1241
Version 2.2.2
1242
-------------
1243

    
1244
*(Released Fri, 19 Nov 2010)*
1245

    
1246
A few small bugs fixed, and some improvements to the build system:
1247

    
1248
- Fix documentation regarding conversion to drbd
1249
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1250
  -B``)
1251
- Fix error handling in node modify with multiple changes
1252
- Allow remote imports without checked names
1253

    
1254

    
1255
Version 2.2.1
1256
-------------
1257

    
1258
*(Released Tue, 19 Oct 2010)*
1259

    
1260
- Disable SSL session ID cache in RPC client
1261

    
1262

    
1263
Version 2.2.1 rc1
1264
-----------------
1265

    
1266
*(Released Thu, 14 Oct 2010)*
1267

    
1268
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1269
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1270
  with GnuTLS
1271
- Fix problems with interaction between Curl and Python's HTTP server,
1272
  resulting in increased speed in many RPC calls
1273
- Improve our release script to prevent breakage with older aclocal and
1274
  Python 2.6
1275

    
1276

    
1277
Version 2.2.1 rc0
1278
-----------------
1279

    
1280
*(Released Thu, 7 Oct 2010)*
1281

    
1282
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1283
  value retrieved from master
1284
- Added support for blacklisted or hidden OS definitions
1285
- Added simple lock monitor (accessible via (``gnt-debug locks``)
1286
- Added support for -mem-path in KVM hypervisor abstraction layer
1287
- Allow overriding instance parameters in tool for inter-cluster
1288
  instance moves (``tools/move-instance``)
1289
- Improved opcode summaries (e.g. in ``gnt-job list``)
1290
- Improve consistency of OS listing by sorting it
1291
- Documentation updates
1292

    
1293

    
1294
Version 2.2.0.1
1295
---------------
1296

    
1297
*(Released Fri, 8 Oct 2010)*
1298

    
1299
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
1300

    
1301

    
1302
Version 2.2.0
1303
-------------
1304

    
1305
*(Released Mon, 4 Oct 2010)*
1306

    
1307
- Fixed regression in ``gnt-instance rename``
1308

    
1309

    
1310
Version 2.2.0 rc2
1311
-----------------
1312

    
1313
*(Released Wed, 22 Sep 2010)*
1314

    
1315
- Fixed OS_VARIANT variable for OS scripts
1316
- Fixed cluster tag operations via RAPI
1317
- Made ``setup-ssh`` exit with non-zero code if an error occurred
1318
- Disabled RAPI CA checks in watcher
1319

    
1320

    
1321
Version 2.2.0 rc1
1322
-----------------
1323

    
1324
*(Released Mon, 23 Aug 2010)*
1325

    
1326
- Support DRBD versions of the format "a.b.c.d"
1327
- Updated manpages
1328
- Re-introduce support for usage from multiple threads in RAPI client
1329
- Instance renames and modify via RAPI
1330
- Work around race condition between processing and archival in job
1331
  queue
1332
- Mark opcodes following failed one as failed, too
1333
- Job field ``lock_status`` was removed due to difficulties making it
1334
  work with the changed job queue in Ganeti 2.2; a better way to monitor
1335
  locks is expected for a later 2.2.x release
1336
- Fixed dry-run behaviour with many commands
1337
- Support ``ssh-agent`` again when adding nodes
1338
- Many additional bugfixes
1339

    
1340

    
1341
Version 2.2.0 rc0
1342
-----------------
1343

    
1344
*(Released Fri, 30 Jul 2010)*
1345

    
1346
Important change: the internal RPC mechanism between Ganeti nodes has
1347
changed from using a home-grown http library (based on the Python base
1348
libraries) to use the PycURL library. This requires that PycURL is
1349
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
1350
against GnuTLS by default. cURL's support for GnuTLS had known issues
1351
before cURL 7.21.0 and we recommend using the latest cURL release or
1352
linking against OpenSSL. Most other distributions already link PycURL
1353
and cURL against OpenSSL. The command::
1354

    
1355
  python -c 'import pycurl; print pycurl.version'
1356

    
1357
can be used to determine the libraries PycURL and cURL are linked
1358
against.
1359

    
1360
Other significant changes:
1361

    
1362
- Rewrote much of the internals of the job queue, in order to achieve
1363
  better parallelism; this decouples job query operations from the job
1364
  processing, and it should allow much nicer behaviour of the master
1365
  daemon under load, and it also has uncovered some long-standing bugs
1366
  related to the job serialisation (now fixed)
1367
- Added a default iallocator setting to the cluster parameters,
1368
  eliminating the need to always pass nodes or an iallocator for
1369
  operations that require selection of new node(s)
1370
- Added experimental support for the LXC virtualization method
1371
- Added support for OS parameters, which allows the installation of
1372
  instances to pass parameter to OS scripts in order to customise the
1373
  instance
1374
- Added a hypervisor parameter controlling the migration type (live or
1375
  non-live), since hypervisors have various levels of reliability; this
1376
  has renamed the 'live' parameter to 'mode'
1377
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
1378
  logical volumes, meaning that cluster verify will ignore them and not
1379
  flag their presence as errors
1380
- The watcher will now reset the error count for failed instances after
1381
  8 hours, thus allowing self-healing if the problem that caused the
1382
  instances to be down/fail to start has cleared in the meantime
1383
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
1384
  check for, and warn, if the drbd module parameter ``usermode_helper``
1385
  is not consistent with the cluster-wide setting; this is needed to
1386
  make diagnose easier of failed drbd creations
1387
- Started adding base IPv6 support, but this is not yet
1388
  enabled/available for use
1389
- Rename operations (cluster, instance) will now return the new name,
1390
  which is especially useful if a short name was passed in
1391
- Added support for instance migration in RAPI
1392
- Added a tool to pre-configure nodes for the SSH setup, before joining
1393
  them to the cluster; this will allow in the future a simplified model
1394
  for node joining (but not yet fully enabled in 2.2); this needs the
1395
  paramiko python library
1396
- Fixed handling of name-resolving errors
1397
- Fixed consistency of job results on the error path
1398
- Fixed master-failover race condition when executed multiple times in
1399
  sequence
1400
- Fixed many bugs related to the job queue (mostly introduced during the
1401
  2.2 development cycle, so not all are impacting 2.1)
1402
- Fixed instance migration with missing disk symlinks
1403
- Fixed handling of unknown jobs in ``gnt-job archive``
1404
- And many other small fixes/improvements
1405

    
1406
Internal changes:
1407

    
1408
- Enhanced both the unittest and the QA coverage
1409
- Switched the opcode validation to a generic model, and extended the
1410
  validation to all opcode parameters
1411
- Changed more parts of the code that write shell scripts to use the
1412
  same class for this
1413
- Switched the master daemon to use the asyncore library for the Luxi
1414
  server endpoint
1415

    
1416

    
1417
Version 2.2.0 beta0
1418
-------------------
1419

    
1420
*(Released Thu, 17 Jun 2010)*
1421

    
1422
- Added tool (``move-instance``) and infrastructure to move instances
1423
  between separate clusters (see :doc:`separate documentation
1424
  <move-instance>` and :doc:`design document <design-2.2>`)
1425
- Added per-request RPC timeout
1426
- RAPI now requires a Content-Type header for requests with a body (e.g.
1427
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
1428
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
1429
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
1430
  reachable
1431
- Implemented initial support for running Ganeti daemons as separate
1432
  users, see configure-time flags ``--with-user-prefix`` and
1433
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
1434
  time)
1435
- Instances can be removed after export (``gnt-backup export
1436
  --remove-instance``)
1437
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
1438
  key (instead of 1024 bit)
1439
- Added new cluster configuration file for cluster domain secret
1440
- Import/export now use SSL instead of SSH
1441
- Added support for showing estimated time when exporting an instance,
1442
  see the ``ganeti-os-interface(7)`` manpage and look for
1443
  ``EXP_SIZE_FD``
1444

    
1445

    
1446
Version 2.1.8
1447
-------------
1448

    
1449
*(Released Tue, 16 Nov 2010)*
1450

    
1451
Some more bugfixes. Unless critical bugs occur, this will be the last
1452
2.1 release:
1453

    
1454
- Fix case of MAC special-values
1455
- Fix mac checker regex
1456
- backend: Fix typo causing "out of range" error
1457
- Add missing --units in gnt-instance list man page
1458

    
1459

    
1460
Version 2.1.7
1461
-------------
1462

    
1463
*(Released Tue, 24 Aug 2010)*
1464

    
1465
Bugfixes only:
1466
  - Don't ignore secondary node silently on non-mirrored disk templates
1467
    (issue 113)
1468
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
1469
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
1470
  - Properly document the usb_mouse parameter
1471
  - Fix path in ganeti-rapi(8) (issue 116)
1472
  - Adjust error message when the ganeti user's .ssh directory is
1473
    missing
1474
  - Add same-node-check when changing the disk template to drbd
1475

    
1476

    
1477
Version 2.1.6
1478
-------------
1479

    
1480
*(Released Fri, 16 Jul 2010)*
1481

    
1482
Bugfixes only:
1483
  - Add an option to only select some reboot types during qa/burnin.
1484
    (on some hypervisors consequent reboots are not supported)
1485
  - Fix infrequent race condition in master failover. Sometimes the old
1486
    master ip address would be still detected as up for a short time
1487
    after it was removed, causing failover to fail.
1488
  - Decrease mlockall warnings when the ctypes module is missing. On
1489
    Python 2.4 we support running even if no ctypes module is installed,
1490
    but we were too verbose about this issue.
1491
  - Fix building on old distributions, on which man doesn't have a
1492
    --warnings option.
1493
  - Fix RAPI not to ignore the MAC address on instance creation
1494
  - Implement the old instance creation format in the RAPI client.
1495

    
1496

    
1497
Version 2.1.5
1498
-------------
1499

    
1500
*(Released Thu, 01 Jul 2010)*
1501

    
1502
A small bugfix release:
1503
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
1504
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
1505
    a non-existing option
1506
  - Fix instance create: the --force-variant option was ignored
1507
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
1508
  - Fix modify node storage with non-FQDN arguments
1509
  - Fix RAPI client to authenticate under Python 2.6 when used
1510
    for more than 5 requests needing authentication
1511
  - Fix gnt-instance modify -t (storage) giving a wrong error message
1512
    when converting a non-shutdown drbd instance to plain
1513

    
1514

    
1515
Version 2.1.4
1516
-------------
1517

    
1518
*(Released Fri, 18 Jun 2010)*
1519

    
1520
A small bugfix release:
1521

    
1522
  - Fix live migration of KVM instances started with older Ganeti
1523
    versions which had fewer hypervisor parameters
1524
  - Fix gnt-instance grow-disk on down instances
1525
  - Fix an error-reporting bug during instance migration
1526
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
1527
    silently ignoring broken ones
1528
  - Fix an RPC error reporting bug affecting, for example, RAPI client
1529
    users
1530
  - Fix bug triggered by different API version os-es on different nodes
1531
  - Fix a bug in instance startup with custom hvparams: OS level
1532
    parameters would fail to be applied.
1533
  - Fix the RAPI client under Python 2.6 (but more work is needed to
1534
    make it work completely well with OpenSSL)
1535
  - Fix handling of errors when resolving names from DNS
1536

    
1537

    
1538
Version 2.1.3
1539
-------------
1540

    
1541
*(Released Thu, 3 Jun 2010)*
1542

    
1543
A medium sized development cycle. Some new features, and some
1544
fixes/small improvements/cleanups.
1545

    
1546
Significant features
1547
~~~~~~~~~~~~~~~~~~~~
1548

    
1549
The node deamon now tries to mlock itself into memory, unless the
1550
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1551
its logs, and falls back to console logging. This allows emergency
1552
features such as ``gnt-node powercycle`` to work even in the event of a
1553
broken node disk (tested offlining the disk hosting the node's
1554
filesystem and dropping its memory caches; don't try this at home)
1555

    
1556
KVM: add vhost-net acceleration support. It can be tested with a new
1557
enough version of the kernel and of qemu-kvm.
1558

    
1559
KVM: Add instance chrooting feature. If you use privilege dropping for
1560
your VMs you can also now force them to chroot to an empty directory,
1561
before starting the emulated guest.
1562

    
1563
KVM: Add maximum migration bandwith and maximum downtime tweaking
1564
support (requires a new-enough version of qemu-kvm).
1565

    
1566
Cluster verify will now warn if the master node doesn't have the master
1567
ip configured on it.
1568

    
1569
Add a new (incompatible) instance creation request format to RAPI which
1570
supports all parameters (previously only a subset was supported, and it
1571
wasn't possible to extend the old format to accomodate all the new
1572
features. The old format is still supported, and a client can check for
1573
this feature, before using it, by checking for its presence in the
1574
``features`` RAPI resource.
1575

    
1576
Now with ancient latin support. Try it passing the ``--roman`` option to
1577
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1578
(requires the python-roman module to be installed, in order to work).
1579

    
1580
Other changes
1581
~~~~~~~~~~~~~
1582

    
1583
As usual many internal code refactorings, documentation updates, and
1584
such. Among others:
1585

    
1586
  - Lots of improvements and cleanups to the experimental Remote API
1587
    (RAPI) client library.
1588
  - A new unit test suite for the core daemon libraries.
1589
  - A fix to creating missing directories makes sure the umask is not
1590
    applied anymore. This enforces the same directory permissions
1591
    everywhere.
1592
  - Better handling terminating daemons with ctrl+c (used when running
1593
    them in debugging mode).
1594
  - Fix a race condition in live migrating a KVM instance, when stat()
1595
    on the old proc status file returned EINVAL, which is an unexpected
1596
    value.
1597
  - Fixed manpage checking with newer man and utf-8 charachters. But now
1598
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1599

    
1600

    
1601
Version 2.1.2.1
1602
---------------
1603

    
1604
*(Released Fri, 7 May 2010)*
1605

    
1606
Fix a bug which prevented untagged KVM instances from starting.
1607

    
1608

    
1609
Version 2.1.2
1610
-------------
1611

    
1612
*(Released Fri, 7 May 2010)*
1613

    
1614
Another release with a long development cycle, during which many
1615
different features were added.
1616

    
1617
Significant features
1618
~~~~~~~~~~~~~~~~~~~~
1619

    
1620
The KVM hypervisor now can run the individual instances as non-root, to
1621
reduce the impact of a VM being hijacked due to bugs in the
1622
hypervisor. It is possible to run all instances as a single (non-root)
1623
user, to manually specify a user for each instance, or to dynamically
1624
allocate a user out of a cluster-wide pool to each instance, with the
1625
guarantee that no two instances will run under the same user ID on any
1626
given node.
1627

    
1628
An experimental RAPI client library, that can be used standalone
1629
(without the other Ganeti libraries), is provided in the source tree as
1630
``lib/rapi/client.py``. Note this client might change its interface in
1631
the future, as we iterate on its capabilities.
1632

    
1633
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1634
replace the cluster's certificates and crypto keys. This might help in
1635
case they have been compromised, or have simply expired.
1636

    
1637
A new disk option for instance creation has been added that allows one
1638
to "adopt" currently existing logical volumes, with data
1639
preservation. This should allow easier migration to Ganeti from
1640
unmanaged (or managed via other software) instances.
1641

    
1642
Another disk improvement is the possibility to convert between redundant
1643
(DRBD) and plain (LVM) disk configuration for an instance. This should
1644
allow better scalability (starting with one node and growing the
1645
cluster, or shrinking a two-node cluster to one node).
1646

    
1647
A new feature that could help with automated node failovers has been
1648
implemented: if a node sees itself as offline (by querying the master
1649
candidates), it will try to shutdown (hard) all instances and any active
1650
DRBD devices. This reduces the risk of duplicate instances if an
1651
external script automatically failovers the instances on such nodes. To
1652
enable this, the cluster parameter ``maintain_node_health`` should be
1653
enabled; in the future this option (per the name) will enable other
1654
automatic maintenance features.
1655

    
1656
Instance export/import now will reuse the original instance
1657
specifications for all parameters; that means exporting an instance,
1658
deleting it and the importing it back should give an almost identical
1659
instance. Note that the default import behaviour has changed from
1660
before, where it created only one NIC; now it recreates the original
1661
number of NICs.
1662

    
1663
Cluster verify has added a few new checks: SSL certificates validity,
1664
/etc/hosts consistency across the cluster, etc.
1665

    
1666
Other changes
1667
~~~~~~~~~~~~~
1668

    
1669
As usual, many internal changes were done, documentation fixes,
1670
etc. Among others:
1671

    
1672
- Fixed cluster initialization with disabled cluster storage (regression
1673
  introduced in 2.1.1)
1674
- File-based storage supports growing the disks
1675
- Fixed behaviour of node role changes
1676
- Fixed cluster verify for some corner cases, plus a general rewrite of
1677
  cluster verify to allow future extension with more checks
1678
- Fixed log spamming by watcher and node daemon (regression introduced
1679
  in 2.1.1)
1680
- Fixed possible validation issues when changing the list of enabled
1681
  hypervisors
1682
- Fixed cleanup of /etc/hosts during node removal
1683
- Fixed RAPI response for invalid methods
1684
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1685
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1686
  from ide disks, etc.)
1687
- Allow OS changes without re-installation (to record a changed OS
1688
  outside of Ganeti, or to allow OS renames)
1689
- Allow instance creation without OS installation (useful for example if
1690
  the OS will be installed manually, or restored from a backup not in
1691
  Ganeti format)
1692
- Implemented option to make cluster ``copyfile`` use the replication
1693
  network
1694
- Added list of enabled hypervisors to ssconf (possibly useful for
1695
  external scripts)
1696
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1697
  1.2 clusters
1698
- A partial form of node re-IP is possible via node readd, which now
1699
  allows changed node primary IP
1700
- Command line utilities now show an informational message if the job is
1701
  waiting for a lock
1702
- The logs of the master daemon now show the PID/UID/GID of the
1703
  connected client
1704

    
1705

    
1706
Version 2.1.1
1707
-------------
1708

    
1709
*(Released Fri, 12 Mar 2010)*
1710

    
1711
During the 2.1.0 long release candidate cycle, a lot of improvements and
1712
changes have accumulated with were released later as 2.1.1.
1713

    
1714
Major changes
1715
~~~~~~~~~~~~~
1716

    
1717
The node evacuate command (``gnt-node evacuate``) was significantly
1718
rewritten, and as such the IAllocator protocol was changed - a new
1719
request type has been added. This unfortunate change during a stable
1720
series is designed to improve performance of node evacuations; on
1721
clusters with more than about five nodes and which are well-balanced,
1722
evacuation should proceed in parallel for all instances of the node
1723
being evacuated. As such, any existing IAllocator scripts need to be
1724
updated, otherwise the above command will fail due to the unknown
1725
request. The provided "dumb" allocator has not been updated; but the
1726
ganeti-htools package supports the new protocol since version 0.2.4.
1727

    
1728
Another important change is increased validation of node and instance
1729
names. This might create problems in special cases, if invalid host
1730
names are being used.
1731

    
1732
Also, a new layer of hypervisor parameters has been added, that sits at
1733
OS level between the cluster defaults and the instance ones. This allows
1734
customisation of virtualization parameters depending on the installed
1735
OS. For example instances with OS 'X' may have a different KVM kernel
1736
(or any other parameter) than the cluster defaults. This is intended to
1737
help managing a multiple OSes on the same cluster, without manual
1738
modification of each instance's parameters.
1739

    
1740
A tool for merging clusters, ``cluster-merge``, has been added in the
1741
tools sub-directory.
1742

    
1743
Bug fixes
1744
~~~~~~~~~
1745

    
1746
- Improved the int/float conversions that should make the code more
1747
  robust in face of errors from the node daemons
1748
- Fixed the remove node code in case of internal configuration errors
1749
- Fixed the node daemon behaviour in face of inconsistent queue
1750
  directory (e.g. read-only file-system where we can't open the files
1751
  read-write, etc.)
1752
- Fixed the behaviour of gnt-node modify for master candidate demotion;
1753
  now it either aborts cleanly or, if given the new "auto_promote"
1754
  parameter, will automatically promote other nodes as needed
1755
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
1756
  completely prevent Ganeti from working
1757
- Fixed bug for instance export when not all disks were successfully
1758
  exported
1759
- Fixed behaviour of node add when the new node is slow in starting up
1760
  the node daemon
1761
- Fixed handling of signals in the LUXI client, which should improve
1762
  behaviour of command-line scripts
1763
- Added checks for invalid node/instance names in the configuration (now
1764
  flagged during cluster verify)
1765
- Fixed watcher behaviour for disk activation errors
1766
- Fixed two potentially endless loops in http library, which led to the
1767
  RAPI daemon hanging and consuming 100% CPU in some cases
1768
- Fixed bug in RAPI daemon related to hashed passwords
1769
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
1770
  instances
1771
- Enhanced compatibility with non-Debian OSes, but not using absolute
1772
  path in some commands and allowing customisation of the ssh
1773
  configuration directory
1774
- Fixed possible future issue with new Python versions by abiding to the
1775
  proper use of ``__slots__`` attribute on classes
1776
- Added checks that should prevent directory traversal attacks
1777
- Many documentation fixes based on feedback from users
1778

    
1779
New features
1780
~~~~~~~~~~~~
1781

    
1782
- Added an "early_release" more for instance replace disks and node
1783
  evacuate, where we release locks earlier and thus allow higher
1784
  parallelism within the cluster
1785
- Added watcher hooks, intended to allow the watcher to restart other
1786
  daemons (e.g. from the ganeti-nbma project), but they can be used of
1787
  course for any other purpose
1788
- Added a compile-time disable for DRBD barriers, to increase
1789
  performance if the administrator trusts the power supply or the
1790
  storage system to not lose writes
1791
- Added the option of using syslog for logging instead of, or in
1792
  addition to, Ganeti's own log files
1793
- Removed boot restriction for paravirtual NICs for KVM, recent versions
1794
  can indeed boot from a paravirtual NIC
1795
- Added a generic debug level for many operations; while this is not
1796
  used widely yet, it allows one to pass the debug value all the way to
1797
  the OS scripts
1798
- Enhanced the hooks environment for instance moves (failovers,
1799
  migrations) where the primary/secondary nodes changed during the
1800
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1801
- Enhanced data validations for many user-supplied values; one important
1802
  item is the restrictions imposed on instance and node names, which
1803
  might reject some (invalid) host names
1804
- Add a configure-time option to disable file-based storage, if it's not
1805
  needed; this allows greater security separation between the master
1806
  node and the other nodes from the point of view of the inter-node RPC
1807
  protocol
1808
- Added user notification in interactive tools if job is waiting in the
1809
  job queue or trying to acquire locks
1810
- Added log messages when a job is waiting for locks
1811
- Added filtering by node tags in instance operations which admit
1812
  multiple instances (start, stop, reboot, reinstall)
1813
- Added a new tool for cluster mergers, ``cluster-merge``
1814
- Parameters from command line which are of the form ``a=b,c=d`` can now
1815
  use backslash escapes to pass in values which contain commas,
1816
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1817
  ``b,c``
1818
- For KVM, the instance name is the first parameter passed to KVM, so
1819
  that it's more visible in the process list
1820

    
1821

    
1822
Version 2.1.0
1823
-------------
1824

    
1825
*(Released Tue, 2 Mar 2010)*
1826

    
1827
Ganeti 2.1 brings many improvements with it. Major changes:
1828

    
1829
- Added infrastructure to ease automated disk repairs
1830
- Added new daemon to export configuration data in a cheaper way than
1831
  using the remote API
1832
- Instance NICs can now be routed instead of being associated with a
1833
  networking bridge
1834
- Improved job locking logic to reduce impact of jobs acquiring multiple
1835
  locks waiting for other long-running jobs
1836

    
1837
In-depth implementation details can be found in the Ganeti 2.1 design
1838
document.
1839

    
1840
Details
1841
~~~~~~~
1842

    
1843
- Added chroot hypervisor
1844
- Added more options to xen-hvm hypervisor (``kernel_path`` and
1845
  ``device_model``)
1846
- Added more options to xen-pvm hypervisor (``use_bootloader``,
1847
  ``bootloader_path`` and ``bootloader_args``)
1848
- Added the ``use_localtime`` option for the xen-hvm and kvm
1849
  hypervisors, and the default value for this has changed to false (in
1850
  2.0 xen-hvm always enabled it)
1851
- Added luxi call to submit multiple jobs in one go
1852
- Added cluster initialization option to not modify ``/etc/hosts``
1853
  file on nodes
1854
- Added network interface parameters
1855
- Added dry run mode to some LUs
1856
- Added RAPI resources:
1857

    
1858
  - ``/2/instances/[instance_name]/info``
1859
  - ``/2/instances/[instance_name]/replace-disks``
1860
  - ``/2/nodes/[node_name]/evacuate``
1861
  - ``/2/nodes/[node_name]/migrate``
1862
  - ``/2/nodes/[node_name]/role``
1863
  - ``/2/nodes/[node_name]/storage``
1864
  - ``/2/nodes/[node_name]/storage/modify``
1865
  - ``/2/nodes/[node_name]/storage/repair``
1866

    
1867
- Added OpCodes to evacuate or migrate all instances on a node
1868
- Added new command to list storage elements on nodes (``gnt-node
1869
  list-storage``) and modify them (``gnt-node modify-storage``)
1870
- Added new ssconf files with master candidate IP address
1871
  (``ssconf_master_candidates_ips``), node primary IP address
1872
  (``ssconf_node_primary_ips``) and node secondary IP address
1873
  (``ssconf_node_secondary_ips``)
1874
- Added ``ganeti-confd`` and a client library to query the Ganeti
1875
  configuration via UDP
1876
- Added ability to run hooks after cluster initialization and before
1877
  cluster destruction
1878
- Added automatic mode for disk replace (``gnt-instance replace-disks
1879
  --auto``)
1880
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
1881
  after catastrophic data-loss
1882
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
1883
  groups
1884
- Added ``gnt-instance move`` command to move instances
1885
- Added ``gnt-cluster watcher`` command to control watcher
1886
- Added ``gnt-node powercycle`` command to powercycle nodes
1887
- Added new job status field ``lock_status``
1888
- Added parseable error codes to cluster verification (``gnt-cluster
1889
  verify --error-codes``) and made output less verbose (use
1890
  ``--verbose`` to restore previous behaviour)
1891
- Added UUIDs to the main config entities (cluster, nodes, instances)
1892
- Added support for OS variants
1893
- Added support for hashed passwords in the Ganeti remote API users file
1894
  (``rapi_users``)
1895
- Added option to specify maximum timeout on instance shutdown
1896
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
1897
- Added new helper script to start and stop Ganeti daemons
1898
  (``daemon-util``), with the intent to reduce the work necessary to
1899
  adjust Ganeti for non-Debian distributions and to start/stop daemons
1900
  from one place
1901
- Added more unittests
1902
- Fixed critical bug in ganeti-masterd startup
1903
- Removed the configure-time ``kvm-migration-port`` parameter, this is
1904
  now customisable at the cluster level for both the KVM and Xen
1905
  hypervisors using the new ``migration_port`` parameter
1906
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
1907
  reinstalling an instance
1908
- Allowed ``@`` in tag names
1909
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
1910
- Many documentation updates
1911
- Distribute hypervisor files on ``gnt-cluster redist-conf``
1912
- ``gnt-instance reinstall`` can now reinstall multiple instances
1913
- Updated many command line parameters
1914
- Introduced new OS API version 15
1915
- No longer support a default hypervisor
1916
- Treat virtual LVs as inexistent
1917
- Improved job locking logic to reduce lock contention
1918
- Match instance and node names case insensitively
1919
- Reimplemented bash completion script to be more complete
1920
- Improved burnin
1921

    
1922

    
1923
Version 2.0.6
1924
-------------
1925

    
1926
*(Released Thu, 4 Feb 2010)*
1927

    
1928
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
1929
- Fix a string formatting bug
1930
- Improve safety of the code in some error paths
1931
- Improve data validation in the master of values returned from nodes
1932

    
1933

    
1934
Version 2.0.5
1935
-------------
1936

    
1937
*(Released Thu, 17 Dec 2009)*
1938

    
1939
- Fix security issue due to missing validation of iallocator names; this
1940
  allows local and remote execution of arbitrary executables
1941
- Fix failure of gnt-node list during instance removal
1942
- Ship the RAPI documentation in the archive
1943

    
1944

    
1945
Version 2.0.4
1946
-------------
1947

    
1948
*(Released Wed, 30 Sep 2009)*
1949

    
1950
- Fixed many wrong messages
1951
- Fixed a few bugs related to the locking library
1952
- Fixed MAC checking at instance creation time
1953
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
1954
- Fixed a few issues related to signal handling in both daemons and
1955
  scripts
1956
- Fixed the example startup script provided
1957
- Fixed insserv dependencies in the example startup script (patch from
1958
  Debian)
1959
- Fixed handling of drained nodes in the iallocator framework
1960
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
1961
  #528618)
1962
- Fixed error related to invalid job IDs in job polling
1963
- Fixed job/opcode persistence on unclean master shutdown
1964
- Fixed handling of partial job processing after unclean master
1965
  shutdown
1966
- Fixed error reporting from LUs, previously all errors were converted
1967
  into execution errors
1968
- Fixed error reporting from burnin
1969
- Decreased significantly the memory usage of the job queue
1970
- Optimised slightly multi-job submission
1971
- Optimised slightly opcode loading
1972
- Backported the multi-job submit framework from the development
1973
  branch; multi-instance start and stop should be faster
1974
- Added script to clean archived jobs after 21 days; this will reduce
1975
  the size of the queue directory
1976
- Added some extra checks in disk size tracking
1977
- Added an example ethers hook script
1978
- Added a cluster parameter that prevents Ganeti from modifying of
1979
  /etc/hosts
1980
- Added more node information to RAPI responses
1981
- Added a ``gnt-job watch`` command that allows following the ouput of a
1982
  job
1983
- Added a bind-address option to ganeti-rapi
1984
- Added more checks to the configuration verify
1985
- Enhanced the burnin script such that some operations can be retried
1986
  automatically
1987
- Converted instance reinstall to multi-instance model
1988

    
1989

    
1990
Version 2.0.3
1991
-------------
1992

    
1993
*(Released Fri, 7 Aug 2009)*
1994

    
1995
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
1996
  to allow using the pre-2.0.2 behaviour in activation, if any existing
1997
  instances have mismatched disk sizes in the configuration
1998
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
1999
  any configuration mismatches for disk sizes
2000
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2001
  failover to work on two-node clusters
2002
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2003
  unusable
2004
- Fixed detection of OS script errors in ``gnt-backup export``
2005
- Fixed exit code of ``gnt-backup export``
2006

    
2007

    
2008
Version 2.0.2
2009
-------------
2010

    
2011
*(Released Fri, 17 Jul 2009)*
2012

    
2013
- Added experimental support for stripped logical volumes; this should
2014
  enhance performance but comes with a higher complexity in the block
2015
  device handling; stripping is only enabled when passing
2016
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2017
  affected even in the non-stripped mode
2018
- Improved resiliency against transient failures at the end of DRBD
2019
  resyncs, and in general of DRBD resync checks
2020
- Fixed a couple of issues with exports and snapshot errors
2021
- Fixed a couple of issues in instance listing
2022
- Added display of the disk size in ``gnt-instance info``
2023
- Fixed checking for valid OSes in instance creation
2024
- Fixed handling of the "vcpus" parameter in instance listing and in
2025
  general of invalid parameters
2026
- Fixed http server library, and thus RAPI, to handle invalid
2027
  username/password combinations correctly; this means that now they
2028
  report unauthorized for queries too, not only for modifications,
2029
  allowing earlier detect of configuration problems
2030
- Added a new "role" node list field, equivalent to the master/master
2031
  candidate/drained/offline flags combinations
2032
- Fixed cluster modify and changes of candidate pool size
2033
- Fixed cluster verify error messages for wrong files on regular nodes
2034
- Fixed a couple of issues with node demotion from master candidate role
2035
- Fixed node readd issues
2036
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2037
- Added a new ``--no-voting`` option for masterfailover to fix failover
2038
  on two-nodes clusters when the former master node is unreachable
2039
- Added instance reinstall over RAPI
2040

    
2041

    
2042
Version 2.0.1
2043
-------------
2044

    
2045
*(Released Tue, 16 Jun 2009)*
2046

    
2047
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2048
  allow re-adding the start in single-user option (regression from 1.2)
2049
- the watcher writes the instance status to a file, to allow monitoring
2050
  to report the instance status (from the master) based on cached
2051
  results of the watcher's queries; while this can get stale if the
2052
  watcher is being locked due to other work on the cluster, this is
2053
  still an improvement
2054
- the watcher now also restarts the node daemon and the rapi daemon if
2055
  they died
2056
- fixed the watcher to handle full and drained queue cases
2057
- hooks export more instance data in the environment, which helps if
2058
  hook scripts need to take action based on the instance's properties
2059
  (no longer need to query back into ganeti)
2060
- instance failovers when the instance is stopped do not check for free
2061
  RAM, so that failing over a stopped instance is possible in low memory
2062
  situations
2063
- rapi uses queries for tags instead of jobs (for less job traffic), and
2064
  for cluster tags it won't talk to masterd at all but read them from
2065
  ssconf
2066
- a couple of error handling fixes in RAPI
2067
- drbd handling: improved the error handling of inconsistent disks after
2068
  resync to reduce the frequency of "there are some degraded disks for
2069
  this instance" messages
2070
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2071
  error handling path called a wrong function name)
2072

    
2073

    
2074
Version 2.0.0
2075
-------------
2076

    
2077
*(Released Wed, 27 May 2009)*
2078

    
2079
- no changes from rc5
2080

    
2081

    
2082
Version 2.0 rc5
2083
---------------
2084

    
2085
*(Released Wed, 20 May 2009)*
2086

    
2087
- fix a couple of bugs (validation, argument checks)
2088
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2089
- some small improvements to RAPI and IAllocator
2090
- make watcher automatically start the master daemon if down
2091

    
2092

    
2093
Version 2.0 rc4
2094
---------------
2095

    
2096
*(Released Mon, 27 Apr 2009)*
2097

    
2098
- change the OS list to not require locks; this helps with big clusters
2099
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2100
  volume group is broken
2101
- ``gnt-instance info``, without any arguments, doesn't run for all
2102
  instances anymore; either pass ``--all`` or pass the desired
2103
  instances; this helps against mistakes on big clusters where listing
2104
  the information for all instances takes a long time
2105
- miscellaneous doc and man pages fixes
2106

    
2107

    
2108
Version 2.0 rc3
2109
---------------
2110

    
2111
*(Released Wed, 8 Apr 2009)*
2112

    
2113
- Change the internal locking model of some ``gnt-node`` commands, in
2114
  order to reduce contention (and blocking of master daemon) when
2115
  batching many creation/reinstall jobs
2116
- Fixes to Xen soft reboot
2117
- No longer build documentation at build time, instead distribute it in
2118
  the archive, in order to reduce the need for the whole docbook/rst
2119
  toolchains
2120

    
2121

    
2122
Version 2.0 rc2
2123
---------------
2124

    
2125
*(Released Fri, 27 Mar 2009)*
2126

    
2127
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2128
- Fix watcher startup sequence, improves the behaviour of busy clusters
2129
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2130
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2131
  bind address and other places
2132
- Some documentation fixes and updates
2133

    
2134

    
2135
Version 2.0 rc1
2136
---------------
2137

    
2138
*(Released Mon, 2 Mar 2009)*
2139

    
2140
- More documentation updates, now all docs should be more-or-less
2141
  up-to-date
2142
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2143
  etc.)
2144
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2145
  and KVM)
2146
- Fix an issue related to $libdir/run/ganeti and cluster creation
2147

    
2148

    
2149
Version 2.0 beta2
2150
-----------------
2151

    
2152
*(Released Thu, 19 Feb 2009)*
2153

    
2154
- Xen PVM and KVM have switched the default value for the instance root
2155
  disk to the first partition on the first drive, instead of the whole
2156
  drive; this means that the OS installation scripts must be changed
2157
  accordingly
2158
- Man pages have been updated
2159
- RAPI has been switched by default to HTTPS, and the exported functions
2160
  should all work correctly
2161
- RAPI v1 has been removed
2162
- Many improvements to the KVM hypervisor
2163
- Block device errors are now better reported
2164
- Many other bugfixes and small improvements
2165

    
2166

    
2167
Version 2.0 beta1
2168
-----------------
2169

    
2170
*(Released Mon, 26 Jan 2009)*
2171

    
2172
- Version 2 is a general rewrite of the code and therefore the
2173
  differences are too many to list, see the design document for 2.0 in
2174
  the ``doc/`` subdirectory for more details
2175
- In this beta version there is not yet a migration path from 1.2 (there
2176
  will be one in the final 2.0 release)
2177
- A few significant changes are:
2178

    
2179
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2180
    various ``gnt-*`` commands are just front-ends to it
2181
  - all the commands are entered into, and executed from a job queue,
2182
    see the ``gnt-job(8)`` manpage
2183
  - the RAPI daemon supports read-write operations, secured by basic
2184
    HTTP authentication on top of HTTPS
2185
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2186
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2187
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2188
  - DRBD devices are using statically allocated minor numbers, which
2189
    will be assigned to existing instances during the migration process
2190
  - there is support for both Xen PVM and Xen HVM instances running on
2191
    the same cluster
2192
  - KVM virtualization is supported too
2193
  - file-based storage has been implemented, which means that it is
2194
    possible to run the cluster without LVM and DRBD storage, for
2195
    example using a shared filesystem exported from shared storage (and
2196
    still have live migration)
2197

    
2198

    
2199
Version 1.2.7
2200
-------------
2201

    
2202
*(Released Tue, 13 Jan 2009)*
2203

    
2204
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2205
- Reuse the old instance mac address by default on instance import, if
2206
  the instance name is the same.
2207
- Handle situations in which the node info rpc returns incomplete
2208
  results (issue 46)
2209
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2210
- Improved version of batcher:
2211

    
2212
  - state file support
2213
  - instance mac address support
2214
  - support for HVM clusters/instances
2215

    
2216
- Add an option to show the number of cpu sockets and nodes in
2217
  ``gnt-node list``
2218
- Support OSes that handle more than one version of the OS api (but do
2219
  not change the current API in any other way)
2220
- Fix ``gnt-node migrate``
2221
- ``gnt-debug`` man page
2222
- Fixes various more typos and small issues
2223
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2224

    
2225

    
2226
Version 1.2.6
2227
-------------
2228

    
2229
*(Released Wed, 24 Sep 2008)*
2230

    
2231
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2232
  type of disk exported to fully virtualized instances.
2233
- provide access to the serial console of HVM instances
2234
- instance auto_balance flag, set by default. If turned off it will
2235
  avoid warnings on cluster verify if there is not enough memory to fail
2236
  over an instance. in the future it will prevent automatically failing
2237
  it over when we will support that.
2238
- batcher tool for instance creation, see ``tools/README.batcher``
2239
- ``gnt-instance reinstall --select-os`` to interactively select a new
2240
  operating system when reinstalling an instance.
2241
- when changing the memory amount on instance modify a check has been
2242
  added that the instance will be able to start. also warnings are
2243
  emitted if the instance will not be able to fail over, if auto_balance
2244
  is true.
2245
- documentation fixes
2246
- sync fields between ``gnt-instance list/modify/add/import``
2247
- fix a race condition in drbd when the sync speed was set after giving
2248
  the device a remote peer.
2249

    
2250

    
2251
Version 1.2.5
2252
-------------
2253

    
2254
*(Released Tue, 22 Jul 2008)*
2255

    
2256
- note: the allowed size and number of tags per object were reduced
2257
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2258
- fixed twisted 8.x compatibility
2259
- fixed ``gnt-instance replace-disks`` with iallocator
2260
- add TCP keepalives on twisted connections to detect restarted nodes
2261
- disk increase support, see ``gnt-instance grow-disk``
2262
- implement bulk node/instance query for RAPI
2263
- add tags in node/instance listing (optional)
2264
- experimental migration (and live migration) support, read the man page
2265
  for ``gnt-instance migrate``
2266
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2267
  has some small improvements in handling its state file
2268

    
2269

    
2270
Version 1.2.4
2271
-------------
2272

    
2273
*(Released Fri, 13 Jun 2008)*
2274

    
2275
- Experimental readonly, REST-based remote API implementation;
2276
  automatically started on master node, TCP port 5080, if enabled by
2277
  ``--enable-rapi`` parameter to configure script.
2278
- Instance allocator support. Add and import instance accept a
2279
  ``--iallocator`` parameter, and call that instance allocator to decide
2280
  which node to use for the instance. The iallocator document describes
2281
  what's expected from an allocator script.
2282
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2283
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2284
  node is lost there is still enough memory to fail over the instances
2285
  that reside on it.
2286
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2287
  ``gnt-cluster verify``, to check for site-specific compliance. All the
2288
  hooks will run, and their output, if any, will be displayed. Any
2289
  failing hook will make the verification return an error value.
2290
- ``gnt-cluster verify`` now checks that its peers are reachable on the
2291
  primary and secondary interfaces
2292
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2293
  that is still declared as part of the cluster and has failed.
2294
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
2295
  specifying output fields, that just adds the chosen fields to the
2296
  default ones.
2297
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
2298
  export from the filesystem.
2299
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2300
  have been added. Using them you can enable/disable acpi and pae
2301
  support, and specify a path for a cd image to be exported to the
2302
  instance. These parameters as the name suggest only work on HVM
2303
  clusters.
2304
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2305
  PAE support will be set to the previously hardcoded values, but the
2306
  (previously hardcoded) path to the CDROM ISO image will be unset and
2307
  if required, needs to be set manually with ``gnt-instance modify``
2308
  after the upgrade.
2309
- The address to which an instance's VNC console is bound is now
2310
  selectable per-instance, rather than being cluster wide. Of course
2311
  this only applies to instances controlled via VNC, so currently just
2312
  applies to HVM clusters.
2313

    
2314

    
2315
Version 1.2.3
2316
-------------
2317

    
2318
*(Released Mon, 18 Feb 2008)*
2319

    
2320
- more tweaks to the disk activation code (especially helpful for DRBD)
2321
- change the default ``gnt-instance list`` output format, now there is
2322
  one combined status field (see the manpage for the exact values this
2323
  field will have)
2324
- some more fixes for the mac export to hooks change
2325
- make Ganeti not break with DRBD 8.2.x (which changed the version
2326
  format in ``/proc/drbd``) (issue 24)
2327
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2328
  template, allowing migration from DRBD0.7+MD to DRBD8
2329

    
2330

    
2331
Version 1.2.2
2332
-------------
2333

    
2334
*(Released Wed, 30 Jan 2008)*
2335

    
2336
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
2337
  support (issue 23)
2338
- add command aliases infrastructure and a few aliases
2339
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
2340
  man pages and the ``--help`` option of ``gnt-node
2341
  list``/``gnt-instance list``
2342
- fix ``gnt-backup list`` with down nodes (issue 21)
2343
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
2344
- fix the dist archive and add a check for including svn/git files in
2345
  the future
2346
- some developer-related changes: improve the burnin and the QA suite,
2347
  add an upload script for testing during development
2348

    
2349

    
2350
Version 1.2.1
2351
-------------
2352

    
2353
*(Released Wed, 16 Jan 2008)*
2354

    
2355
- experimental HVM support, read the install document, section
2356
  "Initializing the cluster"
2357
- allow for the PVM hypervisor per-instance kernel and initrd paths
2358
- add a new command ``gnt-cluster verify-disks`` which uses a new
2359
  algorithm to improve the reconnection of the DRBD pairs if the device
2360
  on the secondary node has gone away
2361
- make logical volume code auto-activate LVs at disk activation time
2362
- slightly improve the speed of activating disks
2363
- allow specification of the MAC address at instance creation time, and
2364
  changing it later via ``gnt-instance modify``
2365
- fix handling of external commands that generate lots of output on
2366
  stderr
2367
- update documentation with regard to minimum version of DRBD8 supported
2368

    
2369

    
2370
Version 1.2.0
2371
-------------
2372

    
2373
*(Released Tue, 4 Dec 2007)*
2374

    
2375
- Log the ``xm create`` output to the node daemon log on failure (to
2376
  help diagnosing the error)
2377
- In debug mode, log all external commands output if failed to the logs
2378
- Change parsing of lvm commands to ignore stderr
2379

    
2380

    
2381
Version 1.2 beta3
2382
-----------------
2383

    
2384
*(Released Wed, 28 Nov 2007)*
2385

    
2386
- Another round of updates to the DRBD 8 code to deal with more failures
2387
  in the replace secondary node operation
2388
- Some more logging of failures in disk operations (lvm, drbd)
2389
- A few documentation updates
2390
- QA updates
2391

    
2392

    
2393
Version 1.2 beta2
2394
-----------------
2395

    
2396
*(Released Tue, 13 Nov 2007)*
2397

    
2398
- Change configuration file format from Python's Pickle to JSON.
2399
  Upgrading is possible using the cfgupgrade utility.
2400
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
2401
  faster replace disks and is more stable (DRBD 8 has many improvements
2402
  compared to DRBD 0.7)
2403
- Added command line tags support (see man pages for ``gnt-instance``,
2404
  ``gnt-node``, ``gnt-cluster``)
2405
- Added instance rename support
2406
- Added multi-instance startup/shutdown
2407
- Added cluster rename support
2408
- Added ``gnt-node evacuate`` to simplify some node operations
2409
- Added instance reboot operation that can speedup reboot as compared to
2410
  stop and start
2411
- Soften the requirement that hostnames are in FQDN format
2412
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
2413
  reboots
2414
- Removed dependency on debian's patched fping that uses the
2415
  non-standard ``-S`` option
2416
- Now the OS definitions are searched for in multiple, configurable
2417
  paths (easier for distros to package)
2418
- Some changes to the hooks infrastructure (especially the new
2419
  post-configuration update hook)
2420
- Other small bugfixes
2421

    
2422
.. vim: set textwidth=72 syntax=rst :
2423
.. Local Variables:
2424
.. mode: rst
2425
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2426
.. End: