Statistics
| Branch: | Tag: | Revision:

root / NEWS @ 35d29085

History | View | Annotate | Download (98 kB)

1
News
2
====
3

    
4
Version 2.7.0 rc1
5
-----------------
6

    
7
*(Unreleased)*
8

    
9
- Fix hail to verify disk instance policies on a per-disk basis (Issue 418).
10

    
11

    
12
Version 2.7.0 beta2
13
-------------------
14

    
15
*(Released Tue, 2 Apr 2013)*
16

    
17
- Networks no longer have a "type" slot, since this information was
18
  unused in Ganeti: instead of it tags should be used.
19
- Diskless instances are now externally mirrored (Issue 237). This for
20
  now has only been tested in conjunction with explicit target nodes for
21
  migration/failover.
22
- The rapi client now has a ``target_node`` option to MigrateInstance.
23
- Fix early exit return code for hbal (Issue 386).
24
- Fix ``gnt-instance migrate/failover -n`` (Issue 396).
25
- Fix ``rbd showmapped`` output parsing (Issue 312).
26
- Networks are now referenced indexed by UUID, rather than name. This
27
  will require running cfgupgrade, from 2.7.0beta1, if networks are in
28
  use.
29
- The OS environment now includes network information.
30
- Deleting of a network is now disallowed if any instance nic is using
31
  it, to prevent dangling references.
32
- External storage is now documented in man pages.
33
- The exclusive_storage flag can now only be set at nodegroup level.
34
- Hbal can now submit an explicit priority with its jobs.
35
- Many network related locking fixes.
36
- Bump up the required pylint version to 0.25.1.
37
- Fix the ``no_remember`` option in RAPI client.
38
- Many ipolicy related tests, qa, and fixes.
39
- Many documentation improvements and fixes.
40
- Fix building with ``--disable-file-storage``.
41
- Fix ``-q`` option in htools, which was broken if passed more than
42
  once.
43
- Some haskell/python interaction improvements and fixes.
44
- Fix iallocator in case of missing LVM storage.
45
- Fix confd config load in case of ``--no-lvm-storage``.
46
- The confd/query functionality is now mentioned in the security
47
  documentation.
48

    
49

    
50
Version 2.7.0 beta1
51
-------------------
52

    
53
*(Released Wed, 6 Feb 2013)*
54

    
55
- ``gnt-instance batch-create`` has been changed to use the bulk create
56
  opcode from Ganeti. This lead to incompatible changes in the format of
57
  the JSON file. It's now not a custom dict anymore but a dict
58
  compatible with the ``OpInstanceCreate`` opcode.
59
- Parent directories for file storage need to be listed in
60
  ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
61
  write the file automatically based on old configuration values, but it
62
  can not distribute it across all nodes and the file contents should be
63
  verified. Use ``gnt-cluster copyfile
64
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
65
  upgraded. The reason for requiring this list of paths now is that
66
  before it would have been possible to inject new paths via RPC,
67
  allowing files to be created in arbitrary locations. The RPC protocol
68
  is protected using SSL/X.509 certificates, but as a design principle
69
  Ganeti does not permit arbitrary paths to be passed.
70
- The parsing of the variants file for OSes (see
71
  :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
72
  lines and comment lines (starting with ``#``) are ignored for better
73
  readability.
74
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
75
  longer available. ``gnt-node add`` now invokes a new tool on the
76
  destination node, named ``prepare-node-join``, to configure the SSH
77
  daemon. Paramiko is no longer necessary to configure nodes' SSH
78
  daemons via ``gnt-node add``.
79
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
80
  for RAPI users. It allows granting permissions to query for
81
  information to a specific user without giving
82
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
83
- A new tool named ``node-cleanup`` has been added. It cleans remains of
84
  a cluster from a machine by stopping all daemons, removing
85
  certificates and ssconf files. Unless the ``--no-backup`` option is
86
  given, copies of the certificates are made.
87
- Draining (``gnt-cluster queue drain``) and un-draining the job queue
88
  (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
89
  the flag is not reset after a master failover.
90
- Instance creations now support the use of opportunistic locking,
91
  potentially speeding up the (parallel) creation of multiple instances.
92
  This feature is currently only available via the :doc:`RAPI
93
  <rapi>` interface and when an instance allocator is used. If the
94
  ``opportunistic_locking`` parameter is set the opcode will try to
95
  acquire as many locks as possible, but will not wait for any locks
96
  held by other opcodes. If not enough resources can be found to
97
  allocate the instance, the temporary error code
98
  :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
99
  retried thereafter, with or without opportunistic locking.
100
- The functionality for allocating multiple instances at once has been
101
  overhauled and is now also available through :doc:`RAPI <rapi>`.
102
- Man pages can now be included when the documentation is built, in
103
  which case the output is in ``doc/man-html``. The configure-time
104
  option is ``--enable-manpages-in-doc``. Sphinx 1.0 or higher is
105
  required.
106
- A new htool called ``hroller`` helps scheduling parallel shutdown of
107
  nodes on clusters where all instances are shut down, but without ever
108
  rebooting both primary and secondary node for an instance at the same
109
  time.
110
- Queries not needing locks or RPC access to the node can now be
111
  performed by the confd daemon, making them independent from jobs, and
112
  thus faster to execute. This is selectable at configure time.
113
- The KVM hypervisor has been updated with many new hypervisor
114
  parameters, including a generic one for passing arbitrary command line
115
  values. See a complete list in :manpage:`gnt-instance(8)`.
116
- A new tool, called ``mon-collector``, is the stand-alone executor of
117
  the data collectors for a monitoring system. As of this version, it
118
  just includes the DRBD data collector, that can be executed by calling
119
  ``mon-collector`` using the ``drbd`` parameter. See
120
  :manpage:`mon-collector(7)`.
121
- New ``exclusive-storage`` node parameter added. When it's set to true,
122
  physical disks are assigned in an exclusive fashion to instances, as
123
  documented in :doc:`Partitioned Ganeti <design-partitioned>`.
124
  Currently, only instances using the ``plain`` disk template are
125
  supported.
126
- New network management functionality to support automatic allocation
127
  of IP addresses and managing of network parameters. See
128
  :manpage:`gnt-network(8)` for more details.
129
- New external storage backend, to allow managing arbitrary storage
130
  systems external to the cluster. See
131
  :manpage:`ganeti-extstorage-interface(7)`.
132
- Instance renames of LVM-based instances will now update the LV tags
133
  (which can be used to recover the instance-to-LV mapping in case of
134
  emergencies)
135
- ``hbal`` will now exit with status 0 if, during job execution over
136
  LUXI, early exit has been requested and all jobs are successful;
137
  before, exit status 1 was used, which cannot be differentiated from
138
  "job error" case
139

    
140

    
141
Version 2.6.2
142
-------------
143

    
144
*(Released Fri, 21 Dec 2012)*
145

    
146
Important behaviour change: hbal won't rebalance anymore instances which
147
have the ``auto_balance`` attribute set to false. This was the intention
148
all along, but until now it only skipped those from the N+1 memory
149
reservation (DRBD-specific).
150

    
151
A significant number of bug fixes in this release:
152

    
153
- Fixed disk adoption interaction with ipolicy checks.
154
- Fixed networking issues when instances are started, stopped or
155
  migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
156
- Fixed the warning in cluster verify for shared storage instances not
157
  being redundant.
158
- Fixed removal of storage directory on shared file storage (issue 262).
159
- Fixed validation of LVM volume group name in OpClusterSetParams
160
  (``gnt-cluster modify``) (issue 285).
161
- Fixed runtime memory increases (``gnt-instance modify -m``).
162
- Fixed live migration under Xen's ``xl`` mode.
163
- Fixed ``gnt-instance console`` with ``xl``.
164
- Fixed building with newer Haskell compiler/libraries.
165
- Fixed PID file writing in Haskell daemons (confd); this prevents
166
  restart issues if confd was launched manually (outside of
167
  ``daemon-util``) while another copy of it was running
168
- Fixed a type error when doing live migrations with KVM (issue 297) and
169
  the error messages for failing migrations have been improved.
170
- Fixed opcode validation for the out-of-band commands (``gnt-node
171
  power``).
172
- Fixed a type error when unsetting OS hypervisor parameters (issue
173
  311); now it's possible to unset all OS-specific hypervisor
174
  parameters.
175
- Fixed the ``dry-run`` mode for many operations: verification of
176
  results was over-zealous but didn't take into account the ``dry-run``
177
  operation, resulting in "wrong" failures.
178
- Fixed bash completion in ``gnt-job list`` when the job queue has
179
  hundreds of entries; especially with older ``bash`` versions, this
180
  results in significant CPU usage.
181

    
182
And lastly, a few other improvements have been made:
183

    
184
- Added option to force master-failover without voting (issue 282).
185
- Clarified error message on lock conflict (issue 287).
186
- Logging of newly submitted jobs has been improved (issue 290).
187
- Hostname checks have been made uniform between instance rename and
188
  create (issue 291).
189
- The ``--submit`` option is now supported by ``gnt-debug delay``.
190
- Shutting down the master daemon by sending SIGTERM now stops it from
191
  processing jobs waiting for locks; instead, those jobs will be started
192
  once again after the master daemon is started the next time (issue
193
  296).
194
- Support for Xen's ``xl`` program has been improved (besides the fixes
195
  above).
196
- Reduced logging noise in the Haskell confd daemon (only show one log
197
  entry for each config reload, instead of two).
198
- Several man page updates and typo fixes.
199

    
200

    
201
Version 2.6.1
202
-------------
203

    
204
*(Released Fri, 12 Oct 2012)*
205

    
206
A small bugfix release. Among the bugs fixed:
207

    
208
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
209
  made the command unusable.
210
- Commands that issue many jobs don't fail anymore just because some jobs
211
  take so long that other jobs are archived.
212
- Failures during ``gnt-instance reinstall`` are reflected by the exit
213
  status.
214
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
215
  DRBD is enabled.
216
- When ``always_failover`` is set, ``--allow-failover`` is not required
217
  in migrate commands anymore.
218
- ``bash_completion`` works even if extglob is disabled.
219
- Fixed bug with locks that made failover for RDB-based instances fail.
220
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
221
  a random node instead of one based on the allocator metric.
222
- Support for newer versions of pylint and pep8.
223
- Hail doesn't fail anymore when trying to add an instance of type
224
  ``file``, ``sharedfile`` or ``rbd``.
225
- Added new Makefile target to rebuild the whole distribution, so that
226
  all files are included.
227

    
228

    
229
Version 2.6.0
230
-------------
231

    
232
*(Released Fri, 27 Jul 2012)*
233

    
234

    
235
.. attention:: The ``LUXI`` protocol has been made more consistent
236
   regarding its handling of command arguments. This, however, leads to
237
   incompatibility issues with previous versions. Please ensure that you
238
   restart Ganeti daemons soon after the upgrade, otherwise most
239
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
240
   pausing/resuming the watcher, cancelling and archiving jobs, querying
241
   the cluster configuration) will fail.
242

    
243

    
244
New features
245
~~~~~~~~~~~~
246

    
247
Instance run status
248
+++++++++++++++++++
249

    
250
The current ``admin_up`` field, which used to denote whether an instance
251
should be running or not, has been removed. Instead, ``admin_state`` is
252
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
253

    
254
The rational behind this is that an instance being “down” can have
255
different meanings:
256

    
257
- it could be down during a reboot
258
- it could be temporarily be down for a reinstall
259
- or it could be down because it is deprecated and kept just for its
260
  disk
261

    
262
The previous Boolean state was making it difficult to do capacity
263
calculations: should Ganeti reserve memory for a down instance? Now, the
264
tri-state field makes it clear:
265

    
266
- in ``up`` and ``down`` state, all resources are reserved for the
267
  instance, and it can be at any time brought up if it is down
268
- in ``offline`` state, only disk space is reserved for it, but not
269
  memory or CPUs
270

    
271
The field can have an extra use: since the transition between ``up`` and
272
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
273
transition between ``offline`` and ``down`` is done via ``gnt-instance
274
modify``, it is possible to given different rights to users. For
275
example, owners of an instance could be allowed to start/stop it, but
276
not transition it out of the offline state.
277

    
278
Instance policies and specs
279
+++++++++++++++++++++++++++
280

    
281
In previous Ganeti versions, an instance creation request was not
282
limited on the minimum size and on the maximum size just by the cluster
283
resources. As such, any policy could be implemented only in third-party
284
clients (RAPI clients, or shell wrappers over ``gnt-*``
285
tools). Furthermore, calculating cluster capacity via ``hspace`` again
286
required external input with regards to instance sizes.
287

    
288
In order to improve these workflows and to allow for example better
289
per-node group differentiation, we introduced instance specs, which
290
allow declaring:
291

    
292
- minimum instance disk size, disk count, memory size, cpu count
293
- maximum values for the above metrics
294
- and “standard” values (used in ``hspace`` to calculate the standard
295
  sized instances)
296

    
297
The minimum/maximum values can be also customised at node-group level,
298
for example allowing more powerful hardware to support bigger instance
299
memory sizes.
300

    
301
Beside the instance specs, there are a few other settings belonging to
302
the instance policy framework. It is possible now to customise, per
303
cluster and node-group:
304

    
305
- the list of allowed disk templates
306
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
307
- the maximum ratio of instance to spindles (see below for more
308
  information) for local storage
309

    
310
All these together should allow all tools that talk to Ganeti to know
311
what are the ranges of allowed values for instances and the
312
over-subscription that is allowed.
313

    
314
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
315
instance configuration, and the physical CPU configuration from the
316
node. For the spindle ratios however, we didn't track before these
317
values, so new parameters have been added:
318

    
319
- a new node parameter ``spindle_count``, defaults to 1, customisable at
320
  node group or node level
321
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
322

    
323
Note that spindles in this context doesn't need to mean actual
324
mechanical hard-drives; it's just a relative number for both the node
325
I/O capacity and instance I/O consumption.
326

    
327
Instance migration behaviour
328
++++++++++++++++++++++++++++
329

    
330
While live-migration is in general desirable over failover, it is
331
possible that for some workloads it is actually worse, due to the
332
variable time of the “suspend” phase during live migration.
333

    
334
To allow the tools to work consistently over such instances (without
335
having to hard-code instance names), a new backend parameter
336
``always_failover`` has been added to control the migration/failover
337
behaviour. When set to True, all migration requests for an instance will
338
instead fall-back to failover.
339

    
340
Instance memory ballooning
341
++++++++++++++++++++++++++
342

    
343
Initial support for memory ballooning has been added. The memory for an
344
instance is no longer fixed (backend parameter ``memory``), but instead
345
can vary between minimum and maximum values (backend parameters
346
``minmem`` and ``maxmem``). Currently we only change an instance's
347
memory when:
348

    
349
- live migrating or failing over and instance and the target node
350
  doesn't have enough memory
351
- user requests changing the memory via ``gnt-instance modify
352
  --runtime-memory``
353

    
354
Instance CPU pinning
355
++++++++++++++++++++
356

    
357
In order to control the use of specific CPUs by instance, support for
358
controlling CPU pinning has been added for the Xen, HVM and LXC
359
hypervisors. This is controlled by a new hypervisor parameter
360
``cpu_mask``; details about possible values for this are in the
361
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
362
VCPU-to-CPU mapping) form will work well only when all nodes in your
363
cluster have the same amount of CPUs.
364

    
365
Disk parameters
366
+++++++++++++++
367

    
368
Another area in which Ganeti was not customisable were the parameters
369
used for storage configuration, e.g. how many stripes to use for LVM,
370
DRBD resync configuration, etc.
371

    
372
To improve this area, we've added disks parameters, which are
373
customisable at cluster and node group level, and which allow to
374
specify various parameters for disks (DRBD has the most parameters
375
currently), for example:
376

    
377
- DRBD resync algorithm and parameters (e.g. speed)
378
- the default VG for meta-data volumes for DRBD
379
- number of stripes for LVM (plain disk template)
380
- the RBD pool
381

    
382
These parameters can be modified via ``gnt-cluster modify -D …`` and
383
``gnt-group modify -D …``, and are used at either instance creation (in
384
case of LVM stripes, for example) or at disk “activation” time
385
(e.g. resync speed).
386

    
387
Rados block device support
388
++++++++++++++++++++++++++
389

    
390
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
391
denoted by the ``rbd`` disk template type. This is considered
392
experimental, feedback is welcome. For details on configuring it, see
393
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
394

    
395
Master IP setup
396
+++++++++++++++
397

    
398
The existing master IP functionality works well only in simple setups (a
399
single network shared by all nodes); however, if nodes belong to
400
different networks, then the ``/32`` setup and lack of routing
401
information is not enough.
402

    
403
To allow the master IP to function well in more complex cases, the
404
system was reworked as follows:
405

    
406
- a master IP netmask setting has been added
407
- the master IP activation/turn-down code was moved from the node daemon
408
  to a separate script
409
- whether to run the Ganeti-supplied master IP script or a user-supplied
410
  on is a ``gnt-cluster init`` setting
411

    
412
Details about the location of the standard and custom setup scripts are
413
in the man page :manpage:`gnt-cluster(8)`; for information about the
414
setup script protocol, look at the Ganeti-supplied script.
415

    
416
SPICE support
417
+++++++++++++
418

    
419
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
420
improved.
421

    
422
It is now possible to use TLS-protected connections, and when renewing
423
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
424
it is now possible to specify spice or spice CA certificates. Also, it
425
is possible to configure a password for SPICE sessions via the
426
hypervisor parameter ``spice_password_file``.
427

    
428
There are also new parameters to control the compression and streaming
429
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
430
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
431
for the spice parameters.
432

    
433
Lastly, it is now possible to see the SPICE connection information via
434
``gnt-instance console``.
435

    
436
OVF converter
437
+++++++++++++
438

    
439
A new tool (``tools/ovfconverter``) has been added that supports
440
conversion between Ganeti and the `Open Virtualization Format
441
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
442
from).
443

    
444
This relies on the ``qemu-img`` tool to convert the disk formats, so the
445
actual compatibility with other virtualization solutions depends on it.
446

    
447
Confd daemon changes
448
++++++++++++++++++++
449

    
450
The configuration query daemon (``ganeti-confd``) is now optional, and
451
has been rewritten in Haskell; whether to use the daemon at all, use the
452
Python (default) or the Haskell version is selectable at configure time
453
via the ``--enable-confd`` parameter, which can take one of the
454
``haskell``, ``python`` or ``no`` values. If not used, disabling the
455
daemon will result in a smaller footprint; for larger systems, we
456
welcome feedback on the Haskell version which might become the default
457
in future versions.
458

    
459
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
460
daemon running. The Python version doesn't implement the new call.
461

    
462

    
463
User interface changes
464
~~~~~~~~~~~~~~~~~~~~~~
465

    
466
We have replaced the ``--disks`` option of ``gnt-instance
467
replace-disks`` with a more flexible ``--disk`` option, which allows
468
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
469
disk size and mode can be changed upon recreation (via ``gnt-instance
470
recreate-disks``, which accepts the same ``--disk`` option).
471

    
472
As many people are used to a ``show`` command, we have added that as an
473
alias to ``info`` on all ``gnt-*`` commands.
474

    
475
The ``gnt-instance grow-disk`` command has a new mode in which it can
476
accept the target size of the disk, instead of the delta; this can be
477
more safe since two runs in absolute mode will be idempotent, and
478
sometimes it's also easier to specify the desired size directly.
479

    
480
Also the handling of instances with regard to offline secondaries has
481
been improved. Instance operations should not fail because one of it's
482
secondary nodes is offline, even though it's safe to proceed.
483

    
484
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
485
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
486
minors to instance name.
487

    
488
API changes
489
~~~~~~~~~~~
490

    
491
RAPI coverage has improved, with (for example) new resources for
492
recreate-disks, node power-cycle, etc.
493

    
494
Compatibility
495
~~~~~~~~~~~~~
496

    
497
There is partial support for ``xl`` in the Xen hypervisor; feedback is
498
welcome.
499

    
500
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
501
whether to still support Python 2.4 or move to Python 2.6 as minimum
502
required version.
503

    
504
Support for Fedora has been slightly improved; the provided example
505
init.d script should work better on it and the INSTALL file should
506
document the needed dependencies.
507

    
508
Internal changes
509
~~~~~~~~~~~~~~~~
510

    
511
The deprecated ``QueryLocks`` LUXI request has been removed. Use
512
``Query(what=QR_LOCK, ...)`` instead.
513

    
514
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
515
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
516
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
517
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
518
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
519

    
520
RAPI client: ``CertificateError`` now derives from
521
``GanetiApiError``. This should make it more easy to handle Ganeti
522
errors.
523

    
524
Deprecation warnings due to PyCrypto/paramiko import in
525
``tools/setup-ssh`` have been silenced, as usually they are safe; please
526
make sure to run an up-to-date paramiko version, if you use this tool.
527

    
528
The QA scripts now depend on Python 2.5 or above (the main code base
529
still works with Python 2.4).
530

    
531
The configuration file (``config.data``) is now written without
532
indentation for performance reasons; if you want to edit it, it can be
533
re-formatted via ``tools/fmtjson``.
534

    
535
A number of bugs has been fixed in the cluster merge tool.
536

    
537
``x509`` certification verification (used in import-export) has been
538
changed to allow the same clock skew as permitted by the cluster
539
verification. This will remove some rare but hard to diagnose errors in
540
import-export.
541

    
542

    
543
Version 2.6.0 rc4
544
-----------------
545

    
546
*(Released Thu, 19 Jul 2012)*
547

    
548
Very few changes from rc4 to the final release, only bugfixes:
549

    
550
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
551
  instance, fix CDROM booting for KVM instances)
552
- fixed node group modification of node parameters
553
- fixed issue in LUClusterVerifyGroup with multi-group clusters
554
- fixed generation of bash completion to ensure a stable ordering
555
- fixed a few typos
556

    
557

    
558
Version 2.6.0 rc3
559
-----------------
560

    
561
*(Released Fri, 13 Jul 2012)*
562

    
563
Third release candidate for 2.6. The following changes were done from
564
rc3 to rc4:
565

    
566
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
567
- Fixed an inconsistency in the LUXI protocol with the provided
568
  arguments (NOT backwards compatible)
569
- Fixed a bug with node groups ipolicy where ``min`` was greater than
570
  the cluster ``std`` value
571
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
572
  easier instance debugging on nodes (requires ``hconfd`` to work)
573

    
574

    
575
Version 2.6.0 rc2
576
-----------------
577

    
578
*(Released Tue, 03 Jul 2012)*
579

    
580
Second release candidate for 2.6. The following changes were done from
581
rc2 to rc3:
582

    
583
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
584
  master candidates
585
- Fixed a RAPI regression on missing beparams/memory
586
- Fixed redistribution of files on offline nodes
587
- Added possibility to run activate-disks even though secondaries are
588
  offline. With this change it relaxes also the strictness on some other
589
  commands which use activate disks internally:
590
  * ``gnt-instance start|reboot|rename|backup|export``
591
- Made it possible to remove safely an instance if its secondaries are
592
  offline
593
- Made it possible to reinstall even though secondaries are offline
594

    
595

    
596
Version 2.6.0 rc1
597
-----------------
598

    
599
*(Released Mon, 25 Jun 2012)*
600

    
601
First release candidate for 2.6. The following changes were done from
602
rc1 to rc2:
603

    
604
- Fixed bugs with disk parameters and ``rbd`` templates as well as
605
  ``instance_os_add``
606
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
607
  behaviour. It supports now the modify operation
608
- ``hcheck`` implemented to analyze cluster health and possibility of
609
  improving health by rebalance
610
- ``hbal`` has been improved in dealing with split instances
611

    
612

    
613
Version 2.6.0 beta2
614
-------------------
615

    
616
*(Released Mon, 11 Jun 2012)*
617

    
618
Second beta release of 2.6. The following changes were done from beta2
619
to rc1:
620

    
621
- Fixed ``daemon-util`` with non-root user models
622
- Fixed creation of plain instances with ``--no-wait-for-sync``
623
- Fix wrong iv_names when running ``cfgupgrade``
624
- Export more information in RAPI group queries
625
- Fixed bug when changing instance network interfaces
626
- Extended burnin to do NIC changes
627
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
628
- Changed default for DRBD barriers
629
- Fixed DRBD error reporting for syncer rate
630
- Verify the options on disk parameters
631

    
632
And of course various fixes to documentation and improved unittests and
633
QA.
634

    
635

    
636
Version 2.6.0 beta1
637
-------------------
638

    
639
*(Released Wed, 23 May 2012)*
640

    
641
First beta release of 2.6. The following changes were done from beta1 to
642
beta2:
643

    
644
- integrated patch for distributions without ``start-stop-daemon``
645
- adapted example init.d script to work on Fedora
646
- fixed log handling in Haskell daemons
647
- adapted checks in the watcher for pycurl linked against libnss
648
- add partial support for ``xl`` instead of ``xm`` for Xen
649
- fixed a type issue in cluster verification
650
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
651
  clusters)
652

    
653
Plus integrated fixes from the 2.5 branch:
654

    
655
- fixed ``kvm-ifup`` to use ``/bin/bash``
656
- fixed parallel build failures
657
- KVM live migration when using a custom keymap
658

    
659

    
660
Version 2.5.2
661
-------------
662

    
663
*(Released Tue, 24 Jul 2012)*
664

    
665
A small bugfix release, with no new features:
666

    
667
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
668
  different default shell (e.g. Debian, Ubuntu)
669
- fixed KVM startup and live migration with a custom keymap (fixes Issue
670
  243 and Debian bug #650664)
671
- fixed compatibility with KVM versions that don't support multiple boot
672
  devices (fixes Issue 230 and Debian bug #624256)
673

    
674
Additionally, a few fixes were done to the build system (fixed parallel
675
build failures) and to the unittests (fixed race condition in test for
676
FileID functions, and the default enable/disable mode for QA test is now
677
customisable).
678

    
679

    
680
Version 2.5.1
681
-------------
682

    
683
*(Released Fri, 11 May 2012)*
684

    
685
A small bugfix release.
686

    
687
The main issues solved are on the topic of compatibility with newer LVM
688
releases:
689

    
690
- fixed parsing of ``lv_attr`` field
691
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
692
  the ``--force`` flag is needed
693

    
694
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
695
to accept kernel 3.x too (was hardcoded to 2.6.*).
696

    
697
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
698
of hook results and that also made display of other errors suboptimal
699
was fixed; the code behaves now like 2.4 and earlier.
700

    
701
Another change in 2.5, the cleanup of the OS scripts environment, is too
702
aggressive: it removed even the ``PATH`` variable, which requires the OS
703
scripts to *always* need to export it. Since this is a bit too strict,
704
we now export a minimal PATH, the same that we export for hooks.
705

    
706
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
707
integrated into this release.
708

    
709
Finally, a few other miscellaneous changes were done (no new features,
710
just small improvements):
711

    
712
- Fix ``gnt-group --help`` display
713
- Fix hardcoded Xen kernel path
714
- Fix grow-disk handling of invalid units
715
- Update synopsis for ``gnt-cluster repair-disk-sizes``
716
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
717

    
718

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

    
722
*(Released Thu, 12 Apr 2012)*
723

    
724
Incompatible/important changes and bugfixes
725
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
726

    
727
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
728
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
729
  to match the underlying LUXI interface.
730
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
731
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
732
  not maintain backwards-compatibility as the underlying operation
733
  changed in an incompatible way. The RAPI client can talk to old
734
  servers, but it needs to be told so as the return value changed.
735
- When creating file-based instances via RAPI, the ``file_driver``
736
  parameter no longer defaults to ``loop`` and must be specified.
737
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
738
  ``link`` instead.
739
- Support for the undocumented and deprecated RAPI instance creation
740
  request format version 0 has been dropped. Use version 1, supported
741
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
742
- Pyparsing 1.4.6 or above is required, see :doc:`installation
743
  documentation <install>`.
744
- The "cluster-verify" hooks are now executed per group by the
745
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
746
  if you just run ``gnt-cluster verify``, which generates one opcode per
747
  group.
748
- The environment as passed to the OS scripts is cleared, and thus no
749
  environment variables defined in the node daemon's environment will be
750
  inherited by the scripts.
751
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
752
  deprecated.
753
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
754
  support operations involving multiple node groups.
755
- Offline nodes are ignored when failing over an instance.
756
- Support for KVM version 1.0, which changed the version reporting format
757
  from 3 to 2 digits.
758
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
759
  removal.
760
- ``Makefile`` is now compatible with Automake 1.11.2
761
- Includes all bugfixes made in the 2.4 series
762

    
763
New features
764
~~~~~~~~~~~~
765

    
766
- The ganeti-htools project has been merged into the ganeti-core source
767
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
768
- Implemented support for :doc:`shared storage <design-shared-storage>`.
769
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
770
  GPT-style partition tables (requires `parted
771
  <http://www.gnu.org/s/parted/>`_).
772
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
773
- Allowed adding tags on instance creation.
774
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
775
- Allow instances to be started in a paused state, enabling the user to
776
  see the complete console output on boot using the console.
777
- Added new hypervisor flag to control default reboot behaviour
778
  (``reboot_behavior``).
779
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
780
- Improved out-of-band management support:
781

    
782
  - Added ``gnt-node health`` command reporting the health status of
783
    nodes.
784
  - Added ``gnt-node power`` command to manage power status of nodes.
785
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
786

    
787
- Instance migration can fall back to failover if instance is not
788
  running.
789
- Filters can be used when listing nodes, instances, groups and locks;
790
  see :manpage:`ganeti(7)` manpage.
791
- Added post-execution status as variables to :doc:`hooks <hooks>`
792
  environment.
793
- Instance tags are exported/imported together with the instance.
794
- When given an explicit job ID, ``gnt-job info`` will work for archived
795
  jobs.
796
- Jobs can define dependencies on other jobs (not yet supported via
797
  RAPI or command line, but used by internal commands and usable via
798
  LUXI).
799

    
800
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
801
    dependencies.
802

    
803
- Instance failover is now available as a RAPI resource
804
  (``/2/instances/[instance_name]/failover``).
805
- ``gnt-instance info`` defaults to static information if primary node
806
  is offline.
807
- Opcodes have a new ``comment`` attribute.
808
- Added basic SPICE support to KVM hypervisor.
809
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
810

    
811
Node group improvements
812
~~~~~~~~~~~~~~~~~~~~~~~
813

    
814
- ``gnt-cluster verify`` has been modified to check groups separately,
815
  thereby improving performance.
816
- Node group support has been added to ``gnt-cluster verify-disks``,
817
  which now operates per node group.
818
- Watcher has been changed to work better with node groups.
819

    
820
  - One process and state file per node group.
821
  - Slow watcher in one group doesn't block other group's watcher.
822

    
823
- Added new command, ``gnt-group evacuate``, to move all instances in a
824
  node group to other groups.
825
- Added ``gnt-instance change-group`` to move an instance to another
826
  node group.
827
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
828
  per-group operations.
829
- Node groups can be tagged.
830
- Some operations switch from an exclusive to a shared lock as soon as
831
  possible.
832
- Instance's primary and secondary nodes' groups are now available as
833
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
834
  and ``snodes.group.uuid``).
835

    
836
Misc
837
~~~~
838

    
839
- Numerous updates to documentation and manpages.
840

    
841
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
842
    descriptions.
843
  - Some opcode/job results are now also documented, see :doc:`RAPI
844
    <rapi>`.
845

    
846
- A lockset's internal lock is now also visible in lock monitor.
847
- Log messages from job queue workers now contain information about the
848
  opcode they're processing.
849
- ``gnt-instance console`` no longer requires the instance lock.
850
- A short delay when waiting for job changes reduces the number of LUXI
851
  requests significantly.
852
- DRBD metadata volumes are overwritten with zeros during disk creation.
853
- Out-of-band commands no longer acquire the cluster lock in exclusive
854
  mode.
855
- ``devel/upload`` now uses correct permissions for directories.
856

    
857

    
858
Version 2.5.0 rc6
859
-----------------
860

    
861
*(Released Fri, 23 Mar 2012)*
862

    
863
This was the sixth release candidate of the 2.5 series.
864

    
865

    
866
Version 2.5.0 rc5
867
-----------------
868

    
869
*(Released Mon, 9 Jan 2012)*
870

    
871
This was the fifth release candidate of the 2.5 series.
872

    
873

    
874
Version 2.5.0 rc4
875
-----------------
876

    
877
*(Released Thu, 27 Oct 2011)*
878

    
879
This was the fourth release candidate of the 2.5 series.
880

    
881

    
882
Version 2.5.0 rc3
883
-----------------
884

    
885
*(Released Wed, 26 Oct 2011)*
886

    
887
This was the third release candidate of the 2.5 series.
888

    
889

    
890
Version 2.5.0 rc2
891
-----------------
892

    
893
*(Released Tue, 18 Oct 2011)*
894

    
895
This was the second release candidate of the 2.5 series.
896

    
897

    
898
Version 2.5.0 rc1
899
-----------------
900

    
901
*(Released Tue, 4 Oct 2011)*
902

    
903
This was the first release candidate of the 2.5 series.
904

    
905

    
906
Version 2.5.0 beta3
907
-------------------
908

    
909
*(Released Wed, 31 Aug 2011)*
910

    
911
This was the third beta release of the 2.5 series.
912

    
913

    
914
Version 2.5.0 beta2
915
-------------------
916

    
917
*(Released Mon, 22 Aug 2011)*
918

    
919
This was the second beta release of the 2.5 series.
920

    
921

    
922
Version 2.5.0 beta1
923
-------------------
924

    
925
*(Released Fri, 12 Aug 2011)*
926

    
927
This was the first beta release of the 2.5 series.
928

    
929

    
930
Version 2.4.5
931
-------------
932

    
933
*(Released Thu, 27 Oct 2011)*
934

    
935
- Fixed bug when parsing command line parameter values ending in
936
  backslash
937
- Fixed assertion error after unclean master shutdown
938
- Disable HTTP client pool for RPC, significantly reducing memory usage
939
  of master daemon
940
- Fixed queue archive creation with wrong permissions
941

    
942

    
943
Version 2.4.4
944
-------------
945

    
946
*(Released Tue, 23 Aug 2011)*
947

    
948
Small bug-fixes:
949

    
950
- Fixed documentation for importing with ``--src-dir`` option
951
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
952
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
953

    
954

    
955
Version 2.4.3
956
-------------
957

    
958
*(Released Fri, 5 Aug 2011)*
959

    
960
Many bug-fixes and a few small features:
961

    
962
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
963
  issues when you tried to add an instance with two MAC addresses in one
964
  request
965
- KVM: fixed per-instance stored UID value
966
- KVM: configure bridged NICs at migration start
967
- KVM: Fix a bug where instance will not start with never KVM versions
968
  (>= 0.14)
969
- Added OS search path to ``gnt-cluster info``
970
- Fixed an issue with ``file_storage_dir`` where you were forced to
971
  provide an absolute path, but the documentation states it is a
972
  relative path, the documentation was right
973
- Added a new parameter to instance stop/start called ``--no-remember``
974
  that will make the state change to not be remembered
975
- Implemented ``no_remember`` at RAPI level
976
- Improved the documentation
977
- Node evacuation: don't call IAllocator if node is already empty
978
- Fixed bug in DRBD8 replace disks on current nodes
979
- Fixed bug in recreate-disks for DRBD instances
980
- Moved assertion checking locks in ``gnt-instance replace-disks``
981
  causing it to abort with not owning the right locks for some situation
982
- Job queue: Fixed potential race condition when cancelling queued jobs
983
- Fixed off-by-one bug in job serial generation
984
- ``gnt-node volumes``: Fix instance names
985
- Fixed aliases in bash completion
986
- Fixed a bug in reopening log files after being sent a SIGHUP
987
- Added a flag to burnin to allow specifying VCPU count
988
- Bugfixes to non-root Ganeti configuration
989

    
990

    
991
Version 2.4.2
992
-------------
993

    
994
*(Released Thu, 12 May 2011)*
995

    
996
Many bug-fixes and a few new small features:
997

    
998
- Fixed a bug related to log opening failures
999
- Fixed a bug in instance listing with orphan instances
1000
- Fixed a bug which prevented resetting the cluster-level node parameter
1001
  ``oob_program`` to the default
1002
- Many fixes related to the ``cluster-merge`` tool
1003
- Fixed a race condition in the lock monitor, which caused failures
1004
  during (at least) creation of many instances in parallel
1005
- Improved output for gnt-job info
1006
- Removed the quiet flag on some ssh calls which prevented debugging
1007
  failures
1008
- Improved the N+1 failure messages in cluster verify by actually
1009
  showing the memory values (needed and available)
1010
- Increased lock attempt timeouts so that when executing long operations
1011
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
1012
  too early and thus prevent the use of the 'fair' mechanism
1013
- Changed instance query data (``gnt-instance info``) to not acquire
1014
  locks unless needed, thus allowing its use on locked instance if only
1015
  static information is asked for
1016
- Improved behaviour with filesystems that do not support rename on an
1017
  opened file
1018
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
1019
  kept locks on all nodes during the wipe, which is unneeded
1020
- Fixed ``gnt-watcher`` handling of errors during hooks execution
1021
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
1022
  10GiB) which caused the wipe to fail right at the end in some cases
1023
- Fixed master IP activation when doing master failover with no-voting
1024
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
1025
  the master node itself
1026
- Fixed potential data-loss in under disk full conditions, where Ganeti
1027
  wouldn't check correctly the return code and would consider
1028
  partially-written files 'correct'
1029
- Fixed bug related to multiple VGs and DRBD disk replacing
1030
- Added new disk parameter ``metavg`` that allows placement of the meta
1031
  device for DRBD in a different volume group
1032
- Fixed error handling in the node daemon when the system libc doesn't
1033
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
1034
- Fixed lock release during replace-disks, which kept cluster-wide locks
1035
  when doing disk replaces with an iallocator script
1036
- Added check for missing bridges in cluster verify
1037
- Handle EPIPE errors while writing to the terminal better, so that
1038
  piping the output to e.g. ``less`` doesn't cause a backtrace
1039
- Fixed rare case where a ^C during Luxi calls could have been
1040
  interpreted as server errors, instead of simply terminating
1041
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
1042
  assign-nodes``)
1043
- Added a few more parameters to the KVM hypervisor, allowing a second
1044
  CDROM, custom disk type for CDROMs and a floppy image
1045
- Removed redundant message in instance rename when the name is given
1046
  already as a FQDN
1047
- Added option to ``gnt-instance recreate-disks`` to allow creating the
1048
  disks on new nodes, allowing recreation when the original instance
1049
  nodes are completely gone
1050
- Added option when converting disk templates to DRBD to skip waiting
1051
  for the resync, in order to make the instance available sooner
1052
- Added two new variables to the OS scripts environment (containing the
1053
  instance's nodes)
1054
- Made the root_path and optional parameter for the xen-pvm hypervisor,
1055
  to allow use of ``pvgrub`` as bootloader
1056
- Changed the instance memory modifications to only check out-of-memory
1057
  conditions on memory increases, and turned the secondary node warnings
1058
  into errors (they can still be overridden via ``--force``)
1059
- Fixed the handling of a corner case when the Python installation gets
1060
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
1061
  to execute a command that doesn't exist
1062
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
1063
  node of the instance returned failures during instance shutdown; this
1064
  adds the option ``--ignore-consistency`` to gnt-instance move
1065

    
1066
And as usual, various improvements to the error messages, documentation
1067
and man pages.
1068

    
1069

    
1070
Version 2.4.1
1071
-------------
1072

    
1073
*(Released Wed, 09 Mar 2011)*
1074

    
1075
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
1076
the RAPI users file if run twice (even with ``--dry-run``).
1077

    
1078
The release fixes that bug (nothing else changed).
1079

    
1080

    
1081
Version 2.4.0
1082
-------------
1083

    
1084
*(Released Mon, 07 Mar 2011)*
1085

    
1086
Final 2.4.0 release. Just a few small fixes:
1087

    
1088
- Fixed RAPI node evacuate
1089
- Fixed the kvm-ifup script
1090
- Fixed internal error handling for special job cases
1091
- Updated man page to specify the escaping feature for options
1092

    
1093

    
1094
Version 2.4.0 rc3
1095
-----------------
1096

    
1097
*(Released Mon, 28 Feb 2011)*
1098

    
1099
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1100
that this feature wiped the disks of the wrong instance, leading to loss
1101
of data.
1102

    
1103
Other changes:
1104

    
1105
- Fixed title of query field containing instance name
1106
- Expanded the glossary in the documentation
1107
- Fixed one unittest (internal issue)
1108

    
1109

    
1110
Version 2.4.0 rc2
1111
-----------------
1112

    
1113
*(Released Mon, 21 Feb 2011)*
1114

    
1115
A number of bug fixes plus just a couple functionality changes.
1116

    
1117
On the user-visible side, the ``gnt-* list`` command output has changed
1118
with respect to "special" field states. The current rc1 style of display
1119
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1120
the default output mode special fields states are displayed as follows:
1121

    
1122
- Offline resource: ``*``
1123
- Unavailable/not applicable: ``-``
1124
- Data missing (RPC failure): ``?``
1125
- Unknown field: ``??``
1126

    
1127
Another user-visible change is the addition of ``--force-join`` to
1128
``gnt-node add``.
1129

    
1130
As for bug fixes:
1131

    
1132
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
1133
- Fixed regression in RAPI/instance reinstall where all parameters were
1134
  required (instead of optional)
1135
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1136
- Fixed iallocator usage (offline nodes were not considered offline)
1137
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1138
- Fixed hypervisor and OS parameter validation with respect to
1139
  non-vm_capable nodes
1140
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1141
  cosmetic)
1142
- Fixed ``tools/listrunner`` with respect to agent-based usage
1143

    
1144

    
1145
Version 2.4.0 rc1
1146
-----------------
1147

    
1148
*(Released Fri,  4 Feb 2011)*
1149

    
1150
Many changes and fixes since the beta1 release. While there were some
1151
internal changes, the code has been mostly stabilised for the RC
1152
release.
1153

    
1154
Note: the dumb allocator was removed in this release, as it was not kept
1155
up-to-date with the IAllocator protocol changes. It is recommended to
1156
use the ``hail`` command from the ganeti-htools package.
1157

    
1158
Note: the 2.4 and up versions of Ganeti are not compatible with the
1159
0.2.x branch of ganeti-htools. You need to upgrade to
1160
ganeti-htools-0.3.0 (or later).
1161

    
1162
Regressions fixed from 2.3
1163
~~~~~~~~~~~~~~~~~~~~~~~~~~
1164

    
1165
- Fixed the ``gnt-cluster verify-disks`` command
1166
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1167
  serially on nodes)
1168
- Fixed disk adoption breakage
1169
- Fixed wrong headers in instance listing for field aliases
1170

    
1171
Other bugs fixed
1172
~~~~~~~~~~~~~~~~
1173

    
1174
- Fixed corner case in KVM handling of NICs
1175
- Fixed many cases of wrong handling of non-vm_capable nodes
1176
- Fixed a bug where a missing instance symlink was not possible to
1177
  recreate with any ``gnt-*`` command (now ``gnt-instance
1178
  activate-disks`` does it)
1179
- Fixed the volume group name as reported by ``gnt-cluster
1180
  verify-disks``
1181
- Increased timeouts for the import-export code, hopefully leading to
1182
  fewer aborts due network or instance timeouts
1183
- Fixed bug in ``gnt-node list-storage``
1184
- Fixed bug where not all daemons were started on cluster
1185
  initialisation, but only at the first watcher run
1186
- Fixed many bugs in the OOB implementation
1187
- Fixed watcher behaviour in presence of instances with offline
1188
  secondaries
1189
- Fixed instance list output for instances running on the wrong node
1190
- a few fixes to the cluster-merge tool, but it still cannot merge
1191
  multi-node groups (currently it is not recommended to use this tool)
1192

    
1193

    
1194
Improvements
1195
~~~~~~~~~~~~
1196

    
1197
- Improved network configuration for the KVM hypervisor
1198
- Added e1000 as a supported NIC for Xen-HVM
1199
- Improved the lvmstrap tool to also be able to use partitions, as
1200
  opposed to full disks
1201
- Improved speed of disk wiping (the cluster parameter
1202
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1203
  of instance creations
1204
- Added documentation for the OS parameters
1205
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1206
  hypervisor is not responding
1207
- Added display of blacklisted and hidden OS information in
1208
  ``gnt-cluster info``
1209
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1210
  NIC and node parameters, which might create problems with currently
1211
  invalid (but undetected) configuration files, but prevents validation
1212
  failures when unrelated parameters are modified
1213
- Changed cluster initialisation to wait for the master daemon to become
1214
  available
1215
- Expanded the RAPI interface:
1216

    
1217
  - Added config redistribution resource
1218
  - Added activation/deactivation of instance disks
1219
  - Added export of console information
1220

    
1221
- Implemented log file reopening on SIGHUP, which allows using
1222
  logrotate(8) for the Ganeti log files
1223
- Added a basic OOB helper script as an example
1224

    
1225

    
1226
Version 2.4.0 beta1
1227
-------------------
1228

    
1229
*(Released Fri, 14 Jan 2011)*
1230

    
1231
User-visible
1232
~~~~~~~~~~~~
1233

    
1234
- Fixed timezone issues when formatting timestamps
1235
- Added support for node groups, available via ``gnt-group`` and other
1236
  commands
1237
- Added out-of-band framework and management, see :doc:`design
1238
  document <design-oob>`
1239
- Removed support for roman numbers from ``gnt-node list`` and
1240
  ``gnt-instance list``.
1241
- Allowed modification of master network interface via ``gnt-cluster
1242
  modify --master-netdev``
1243
- Accept offline secondaries while shutting down instance disks
1244
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1245
- Added support for multiple LVM volume groups
1246
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1247
  requested
1248
- Added commands to list available fields:
1249

    
1250
  - ``gnt-node list-fields``
1251
  - ``gnt-group list-fields``
1252
  - ``gnt-instance list-fields``
1253

    
1254
- Updated documentation and man pages
1255

    
1256
Integration
1257
~~~~~~~~~~~
1258

    
1259
- Moved ``rapi_users`` file into separate directory, now named
1260
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1261
  symlink
1262
- Added new tool for running commands on many machines,
1263
  ``tools/ganeti-listrunner``
1264
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1265
  improving the ``gnt-instance console`` output
1266
- Allowed customisation of disk index separator at ``configure`` time
1267
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1268
- Added support for non-partitioned md disks in ``lvmstrap``
1269
- Added script to gracefully power off KVM instances
1270
- Split ``utils`` module into smaller parts
1271
- Changed query operations to return more detailed information, e.g.
1272
  whether an information is unavailable due to an offline node. To use
1273
  this new functionality, the LUXI call ``Query`` must be used. Field
1274
  information is now stored by the master daemon and can be retrieved
1275
  using ``QueryFields``. Instances, nodes and groups can also be queried
1276
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1277
  exposed via RAPI). The following commands make use of this
1278
  infrastructure change:
1279

    
1280
  - ``gnt-group list``
1281
  - ``gnt-group list-fields``
1282
  - ``gnt-node list``
1283
  - ``gnt-node list-fields``
1284
  - ``gnt-instance list``
1285
  - ``gnt-instance list-fields``
1286
  - ``gnt-debug locks``
1287

    
1288
Remote API
1289
~~~~~~~~~~
1290

    
1291
- New RAPI resources (see :doc:`rapi`):
1292

    
1293
  - ``/2/modify``
1294
  - ``/2/groups``
1295
  - ``/2/groups/[group_name]``
1296
  - ``/2/groups/[group_name]/assign-nodes``
1297
  - ``/2/groups/[group_name]/modify``
1298
  - ``/2/groups/[group_name]/rename``
1299
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1300

    
1301
- RAPI changes:
1302

    
1303
  - Implemented ``no_install`` for instance creation
1304
  - Implemented OS parameters for instance reinstallation, allowing
1305
    use of special settings on reinstallation (e.g. for preserving data)
1306

    
1307
Misc
1308
~~~~
1309

    
1310
- Added IPv6 support in import/export
1311
- Pause DRBD synchronization while wiping disks on instance creation
1312
- Updated unittests and QA scripts
1313
- Improved network parameters passed to KVM
1314
- Converted man pages from docbook to reStructuredText
1315

    
1316

    
1317
Version 2.3.1
1318
-------------
1319

    
1320
*(Released Mon, 20 Dec 2010)*
1321

    
1322
Released version 2.3.1~rc1 without any changes.
1323

    
1324

    
1325
Version 2.3.1 rc1
1326
-----------------
1327

    
1328
*(Released Wed, 1 Dec 2010)*
1329

    
1330
- impexpd: Disable OpenSSL compression in socat if possible (backport
1331
  from master, commit e90739d625b, see :doc:`installation guide
1332
  <install-quick>` for details)
1333
- Changed unittest coverage report to exclude test scripts
1334
- Added script to check version format
1335

    
1336

    
1337
Version 2.3.0
1338
-------------
1339

    
1340
*(Released Wed, 1 Dec 2010)*
1341

    
1342
Released version 2.3.0~rc1 without any changes.
1343

    
1344

    
1345
Version 2.3.0 rc1
1346
-----------------
1347

    
1348
*(Released Fri, 19 Nov 2010)*
1349

    
1350
A number of bugfixes and documentation updates:
1351

    
1352
- Update ganeti-os-interface documentation
1353
- Fixed a bug related to duplicate MACs or similar items which should be
1354
  unique
1355
- Fix breakage in OS state modify
1356
- Reinstall instance: disallow offline secondaries (fixes bug related to
1357
  OS changing but reinstall failing)
1358
- plus all the other fixes between 2.2.1 and 2.2.2
1359

    
1360

    
1361
Version 2.3.0 rc0
1362
-----------------
1363

    
1364
*(Released Tue, 2 Nov 2010)*
1365

    
1366
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1367
- Fixed master failover race with watcher
1368
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1369
  configuration
1370
- Accept previously stopped instance for export with instance removal
1371
- Simplify and extend the environment variables for instance OS scripts
1372
- Added new node flags, ``master_capable`` and ``vm_capable``
1373
- Added optional instance disk wiping prior during allocation. This is a
1374
  cluster-wide option and can be set/modified using
1375
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1376
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1377
  :doc:`install-quick`
1378
- Added a new watcher option (``--ignore-pause``)
1379
- Added option to ignore offline node on instance start/stop
1380
  (``--ignore-offline``)
1381
- Allow overriding OS parameters with ``gnt-instance reinstall``
1382
- Added ability to change node's secondary IP address using ``gnt-node
1383
  modify``
1384
- Implemented privilege separation for all daemons except
1385
  ``ganeti-noded``, see ``configure`` options
1386
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1387
  verify``
1388
- Implemented job priorities (see ``ganeti(7)`` manpage)
1389
- Ignore failures while shutting down instances during failover from
1390
  offline node
1391
- Exit daemon's bootstrap process only once daemon is ready
1392
- Export more information via ``LUInstanceQuery``/remote API
1393
- Improved documentation, QA and unittests
1394
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1395
  restart if the file was created or changed
1396
- Added LUXI protocol version sent with each request and response,
1397
  allowing detection of server/client mismatches
1398
- Moved the Python scripts among gnt-* and ganeti-* into modules
1399
- Moved all code related to setting up SSH to an external script,
1400
  ``setup-ssh``
1401
- Infrastructure changes for node group support in future versions
1402

    
1403

    
1404
Version 2.2.2
1405
-------------
1406

    
1407
*(Released Fri, 19 Nov 2010)*
1408

    
1409
A few small bugs fixed, and some improvements to the build system:
1410

    
1411
- Fix documentation regarding conversion to drbd
1412
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1413
  -B``)
1414
- Fix error handling in node modify with multiple changes
1415
- Allow remote imports without checked names
1416

    
1417

    
1418
Version 2.2.1
1419
-------------
1420

    
1421
*(Released Tue, 19 Oct 2010)*
1422

    
1423
- Disable SSL session ID cache in RPC client
1424

    
1425

    
1426
Version 2.2.1 rc1
1427
-----------------
1428

    
1429
*(Released Thu, 14 Oct 2010)*
1430

    
1431
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1432
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1433
  with GnuTLS
1434
- Fix problems with interaction between Curl and Python's HTTP server,
1435
  resulting in increased speed in many RPC calls
1436
- Improve our release script to prevent breakage with older aclocal and
1437
  Python 2.6
1438

    
1439

    
1440
Version 2.2.1 rc0
1441
-----------------
1442

    
1443
*(Released Thu, 7 Oct 2010)*
1444

    
1445
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1446
  value retrieved from master
1447
- Added support for blacklisted or hidden OS definitions
1448
- Added simple lock monitor (accessible via (``gnt-debug locks``)
1449
- Added support for -mem-path in KVM hypervisor abstraction layer
1450
- Allow overriding instance parameters in tool for inter-cluster
1451
  instance moves (``tools/move-instance``)
1452
- Improved opcode summaries (e.g. in ``gnt-job list``)
1453
- Improve consistency of OS listing by sorting it
1454
- Documentation updates
1455

    
1456

    
1457
Version 2.2.0.1
1458
---------------
1459

    
1460
*(Released Fri, 8 Oct 2010)*
1461

    
1462
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
1463

    
1464

    
1465
Version 2.2.0
1466
-------------
1467

    
1468
*(Released Mon, 4 Oct 2010)*
1469

    
1470
- Fixed regression in ``gnt-instance rename``
1471

    
1472

    
1473
Version 2.2.0 rc2
1474
-----------------
1475

    
1476
*(Released Wed, 22 Sep 2010)*
1477

    
1478
- Fixed OS_VARIANT variable for OS scripts
1479
- Fixed cluster tag operations via RAPI
1480
- Made ``setup-ssh`` exit with non-zero code if an error occurred
1481
- Disabled RAPI CA checks in watcher
1482

    
1483

    
1484
Version 2.2.0 rc1
1485
-----------------
1486

    
1487
*(Released Mon, 23 Aug 2010)*
1488

    
1489
- Support DRBD versions of the format "a.b.c.d"
1490
- Updated manpages
1491
- Re-introduce support for usage from multiple threads in RAPI client
1492
- Instance renames and modify via RAPI
1493
- Work around race condition between processing and archival in job
1494
  queue
1495
- Mark opcodes following failed one as failed, too
1496
- Job field ``lock_status`` was removed due to difficulties making it
1497
  work with the changed job queue in Ganeti 2.2; a better way to monitor
1498
  locks is expected for a later 2.2.x release
1499
- Fixed dry-run behaviour with many commands
1500
- Support ``ssh-agent`` again when adding nodes
1501
- Many additional bugfixes
1502

    
1503

    
1504
Version 2.2.0 rc0
1505
-----------------
1506

    
1507
*(Released Fri, 30 Jul 2010)*
1508

    
1509
Important change: the internal RPC mechanism between Ganeti nodes has
1510
changed from using a home-grown http library (based on the Python base
1511
libraries) to use the PycURL library. This requires that PycURL is
1512
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
1513
against GnuTLS by default. cURL's support for GnuTLS had known issues
1514
before cURL 7.21.0 and we recommend using the latest cURL release or
1515
linking against OpenSSL. Most other distributions already link PycURL
1516
and cURL against OpenSSL. The command::
1517

    
1518
  python -c 'import pycurl; print pycurl.version'
1519

    
1520
can be used to determine the libraries PycURL and cURL are linked
1521
against.
1522

    
1523
Other significant changes:
1524

    
1525
- Rewrote much of the internals of the job queue, in order to achieve
1526
  better parallelism; this decouples job query operations from the job
1527
  processing, and it should allow much nicer behaviour of the master
1528
  daemon under load, and it also has uncovered some long-standing bugs
1529
  related to the job serialisation (now fixed)
1530
- Added a default iallocator setting to the cluster parameters,
1531
  eliminating the need to always pass nodes or an iallocator for
1532
  operations that require selection of new node(s)
1533
- Added experimental support for the LXC virtualization method
1534
- Added support for OS parameters, which allows the installation of
1535
  instances to pass parameter to OS scripts in order to customise the
1536
  instance
1537
- Added a hypervisor parameter controlling the migration type (live or
1538
  non-live), since hypervisors have various levels of reliability; this
1539
  has renamed the 'live' parameter to 'mode'
1540
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
1541
  logical volumes, meaning that cluster verify will ignore them and not
1542
  flag their presence as errors
1543
- The watcher will now reset the error count for failed instances after
1544
  8 hours, thus allowing self-healing if the problem that caused the
1545
  instances to be down/fail to start has cleared in the meantime
1546
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
1547
  check for, and warn, if the drbd module parameter ``usermode_helper``
1548
  is not consistent with the cluster-wide setting; this is needed to
1549
  make diagnose easier of failed drbd creations
1550
- Started adding base IPv6 support, but this is not yet
1551
  enabled/available for use
1552
- Rename operations (cluster, instance) will now return the new name,
1553
  which is especially useful if a short name was passed in
1554
- Added support for instance migration in RAPI
1555
- Added a tool to pre-configure nodes for the SSH setup, before joining
1556
  them to the cluster; this will allow in the future a simplified model
1557
  for node joining (but not yet fully enabled in 2.2); this needs the
1558
  paramiko python library
1559
- Fixed handling of name-resolving errors
1560
- Fixed consistency of job results on the error path
1561
- Fixed master-failover race condition when executed multiple times in
1562
  sequence
1563
- Fixed many bugs related to the job queue (mostly introduced during the
1564
  2.2 development cycle, so not all are impacting 2.1)
1565
- Fixed instance migration with missing disk symlinks
1566
- Fixed handling of unknown jobs in ``gnt-job archive``
1567
- And many other small fixes/improvements
1568

    
1569
Internal changes:
1570

    
1571
- Enhanced both the unittest and the QA coverage
1572
- Switched the opcode validation to a generic model, and extended the
1573
  validation to all opcode parameters
1574
- Changed more parts of the code that write shell scripts to use the
1575
  same class for this
1576
- Switched the master daemon to use the asyncore library for the Luxi
1577
  server endpoint
1578

    
1579

    
1580
Version 2.2.0 beta0
1581
-------------------
1582

    
1583
*(Released Thu, 17 Jun 2010)*
1584

    
1585
- Added tool (``move-instance``) and infrastructure to move instances
1586
  between separate clusters (see :doc:`separate documentation
1587
  <move-instance>` and :doc:`design document <design-2.2>`)
1588
- Added per-request RPC timeout
1589
- RAPI now requires a Content-Type header for requests with a body (e.g.
1590
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
1591
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
1592
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
1593
  reachable
1594
- Implemented initial support for running Ganeti daemons as separate
1595
  users, see configure-time flags ``--with-user-prefix`` and
1596
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
1597
  time)
1598
- Instances can be removed after export (``gnt-backup export
1599
  --remove-instance``)
1600
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
1601
  key (instead of 1024 bit)
1602
- Added new cluster configuration file for cluster domain secret
1603
- Import/export now use SSL instead of SSH
1604
- Added support for showing estimated time when exporting an instance,
1605
  see the ``ganeti-os-interface(7)`` manpage and look for
1606
  ``EXP_SIZE_FD``
1607

    
1608

    
1609
Version 2.1.8
1610
-------------
1611

    
1612
*(Released Tue, 16 Nov 2010)*
1613

    
1614
Some more bugfixes. Unless critical bugs occur, this will be the last
1615
2.1 release:
1616

    
1617
- Fix case of MAC special-values
1618
- Fix mac checker regex
1619
- backend: Fix typo causing "out of range" error
1620
- Add missing --units in gnt-instance list man page
1621

    
1622

    
1623
Version 2.1.7
1624
-------------
1625

    
1626
*(Released Tue, 24 Aug 2010)*
1627

    
1628
Bugfixes only:
1629
  - Don't ignore secondary node silently on non-mirrored disk templates
1630
    (issue 113)
1631
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
1632
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
1633
  - Properly document the usb_mouse parameter
1634
  - Fix path in ganeti-rapi(8) (issue 116)
1635
  - Adjust error message when the ganeti user's .ssh directory is
1636
    missing
1637
  - Add same-node-check when changing the disk template to drbd
1638

    
1639

    
1640
Version 2.1.6
1641
-------------
1642

    
1643
*(Released Fri, 16 Jul 2010)*
1644

    
1645
Bugfixes only:
1646
  - Add an option to only select some reboot types during qa/burnin.
1647
    (on some hypervisors consequent reboots are not supported)
1648
  - Fix infrequent race condition in master failover. Sometimes the old
1649
    master ip address would be still detected as up for a short time
1650
    after it was removed, causing failover to fail.
1651
  - Decrease mlockall warnings when the ctypes module is missing. On
1652
    Python 2.4 we support running even if no ctypes module is installed,
1653
    but we were too verbose about this issue.
1654
  - Fix building on old distributions, on which man doesn't have a
1655
    --warnings option.
1656
  - Fix RAPI not to ignore the MAC address on instance creation
1657
  - Implement the old instance creation format in the RAPI client.
1658

    
1659

    
1660
Version 2.1.5
1661
-------------
1662

    
1663
*(Released Thu, 01 Jul 2010)*
1664

    
1665
A small bugfix release:
1666
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
1667
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
1668
    a non-existing option
1669
  - Fix instance create: the --force-variant option was ignored
1670
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
1671
  - Fix modify node storage with non-FQDN arguments
1672
  - Fix RAPI client to authenticate under Python 2.6 when used
1673
    for more than 5 requests needing authentication
1674
  - Fix gnt-instance modify -t (storage) giving a wrong error message
1675
    when converting a non-shutdown drbd instance to plain
1676

    
1677

    
1678
Version 2.1.4
1679
-------------
1680

    
1681
*(Released Fri, 18 Jun 2010)*
1682

    
1683
A small bugfix release:
1684

    
1685
  - Fix live migration of KVM instances started with older Ganeti
1686
    versions which had fewer hypervisor parameters
1687
  - Fix gnt-instance grow-disk on down instances
1688
  - Fix an error-reporting bug during instance migration
1689
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
1690
    silently ignoring broken ones
1691
  - Fix an RPC error reporting bug affecting, for example, RAPI client
1692
    users
1693
  - Fix bug triggered by different API version os-es on different nodes
1694
  - Fix a bug in instance startup with custom hvparams: OS level
1695
    parameters would fail to be applied.
1696
  - Fix the RAPI client under Python 2.6 (but more work is needed to
1697
    make it work completely well with OpenSSL)
1698
  - Fix handling of errors when resolving names from DNS
1699

    
1700

    
1701
Version 2.1.3
1702
-------------
1703

    
1704
*(Released Thu, 3 Jun 2010)*
1705

    
1706
A medium sized development cycle. Some new features, and some
1707
fixes/small improvements/cleanups.
1708

    
1709
Significant features
1710
~~~~~~~~~~~~~~~~~~~~
1711

    
1712
The node deamon now tries to mlock itself into memory, unless the
1713
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1714
its logs, and falls back to console logging. This allows emergency
1715
features such as ``gnt-node powercycle`` to work even in the event of a
1716
broken node disk (tested offlining the disk hosting the node's
1717
filesystem and dropping its memory caches; don't try this at home)
1718

    
1719
KVM: add vhost-net acceleration support. It can be tested with a new
1720
enough version of the kernel and of qemu-kvm.
1721

    
1722
KVM: Add instance chrooting feature. If you use privilege dropping for
1723
your VMs you can also now force them to chroot to an empty directory,
1724
before starting the emulated guest.
1725

    
1726
KVM: Add maximum migration bandwith and maximum downtime tweaking
1727
support (requires a new-enough version of qemu-kvm).
1728

    
1729
Cluster verify will now warn if the master node doesn't have the master
1730
ip configured on it.
1731

    
1732
Add a new (incompatible) instance creation request format to RAPI which
1733
supports all parameters (previously only a subset was supported, and it
1734
wasn't possible to extend the old format to accomodate all the new
1735
features. The old format is still supported, and a client can check for
1736
this feature, before using it, by checking for its presence in the
1737
``features`` RAPI resource.
1738

    
1739
Now with ancient latin support. Try it passing the ``--roman`` option to
1740
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1741
(requires the python-roman module to be installed, in order to work).
1742

    
1743
Other changes
1744
~~~~~~~~~~~~~
1745

    
1746
As usual many internal code refactorings, documentation updates, and
1747
such. Among others:
1748

    
1749
  - Lots of improvements and cleanups to the experimental Remote API
1750
    (RAPI) client library.
1751
  - A new unit test suite for the core daemon libraries.
1752
  - A fix to creating missing directories makes sure the umask is not
1753
    applied anymore. This enforces the same directory permissions
1754
    everywhere.
1755
  - Better handling terminating daemons with ctrl+c (used when running
1756
    them in debugging mode).
1757
  - Fix a race condition in live migrating a KVM instance, when stat()
1758
    on the old proc status file returned EINVAL, which is an unexpected
1759
    value.
1760
  - Fixed manpage checking with newer man and utf-8 charachters. But now
1761
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1762

    
1763

    
1764
Version 2.1.2.1
1765
---------------
1766

    
1767
*(Released Fri, 7 May 2010)*
1768

    
1769
Fix a bug which prevented untagged KVM instances from starting.
1770

    
1771

    
1772
Version 2.1.2
1773
-------------
1774

    
1775
*(Released Fri, 7 May 2010)*
1776

    
1777
Another release with a long development cycle, during which many
1778
different features were added.
1779

    
1780
Significant features
1781
~~~~~~~~~~~~~~~~~~~~
1782

    
1783
The KVM hypervisor now can run the individual instances as non-root, to
1784
reduce the impact of a VM being hijacked due to bugs in the
1785
hypervisor. It is possible to run all instances as a single (non-root)
1786
user, to manually specify a user for each instance, or to dynamically
1787
allocate a user out of a cluster-wide pool to each instance, with the
1788
guarantee that no two instances will run under the same user ID on any
1789
given node.
1790

    
1791
An experimental RAPI client library, that can be used standalone
1792
(without the other Ganeti libraries), is provided in the source tree as
1793
``lib/rapi/client.py``. Note this client might change its interface in
1794
the future, as we iterate on its capabilities.
1795

    
1796
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1797
replace the cluster's certificates and crypto keys. This might help in
1798
case they have been compromised, or have simply expired.
1799

    
1800
A new disk option for instance creation has been added that allows one
1801
to "adopt" currently existing logical volumes, with data
1802
preservation. This should allow easier migration to Ganeti from
1803
unmanaged (or managed via other software) instances.
1804

    
1805
Another disk improvement is the possibility to convert between redundant
1806
(DRBD) and plain (LVM) disk configuration for an instance. This should
1807
allow better scalability (starting with one node and growing the
1808
cluster, or shrinking a two-node cluster to one node).
1809

    
1810
A new feature that could help with automated node failovers has been
1811
implemented: if a node sees itself as offline (by querying the master
1812
candidates), it will try to shutdown (hard) all instances and any active
1813
DRBD devices. This reduces the risk of duplicate instances if an
1814
external script automatically failovers the instances on such nodes. To
1815
enable this, the cluster parameter ``maintain_node_health`` should be
1816
enabled; in the future this option (per the name) will enable other
1817
automatic maintenance features.
1818

    
1819
Instance export/import now will reuse the original instance
1820
specifications for all parameters; that means exporting an instance,
1821
deleting it and the importing it back should give an almost identical
1822
instance. Note that the default import behaviour has changed from
1823
before, where it created only one NIC; now it recreates the original
1824
number of NICs.
1825

    
1826
Cluster verify has added a few new checks: SSL certificates validity,
1827
/etc/hosts consistency across the cluster, etc.
1828

    
1829
Other changes
1830
~~~~~~~~~~~~~
1831

    
1832
As usual, many internal changes were done, documentation fixes,
1833
etc. Among others:
1834

    
1835
- Fixed cluster initialization with disabled cluster storage (regression
1836
  introduced in 2.1.1)
1837
- File-based storage supports growing the disks
1838
- Fixed behaviour of node role changes
1839
- Fixed cluster verify for some corner cases, plus a general rewrite of
1840
  cluster verify to allow future extension with more checks
1841
- Fixed log spamming by watcher and node daemon (regression introduced
1842
  in 2.1.1)
1843
- Fixed possible validation issues when changing the list of enabled
1844
  hypervisors
1845
- Fixed cleanup of /etc/hosts during node removal
1846
- Fixed RAPI response for invalid methods
1847
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1848
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1849
  from ide disks, etc.)
1850
- Allow OS changes without re-installation (to record a changed OS
1851
  outside of Ganeti, or to allow OS renames)
1852
- Allow instance creation without OS installation (useful for example if
1853
  the OS will be installed manually, or restored from a backup not in
1854
  Ganeti format)
1855
- Implemented option to make cluster ``copyfile`` use the replication
1856
  network
1857
- Added list of enabled hypervisors to ssconf (possibly useful for
1858
  external scripts)
1859
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1860
  1.2 clusters
1861
- A partial form of node re-IP is possible via node readd, which now
1862
  allows changed node primary IP
1863
- Command line utilities now show an informational message if the job is
1864
  waiting for a lock
1865
- The logs of the master daemon now show the PID/UID/GID of the
1866
  connected client
1867

    
1868

    
1869
Version 2.1.1
1870
-------------
1871

    
1872
*(Released Fri, 12 Mar 2010)*
1873

    
1874
During the 2.1.0 long release candidate cycle, a lot of improvements and
1875
changes have accumulated with were released later as 2.1.1.
1876

    
1877
Major changes
1878
~~~~~~~~~~~~~
1879

    
1880
The node evacuate command (``gnt-node evacuate``) was significantly
1881
rewritten, and as such the IAllocator protocol was changed - a new
1882
request type has been added. This unfortunate change during a stable
1883
series is designed to improve performance of node evacuations; on
1884
clusters with more than about five nodes and which are well-balanced,
1885
evacuation should proceed in parallel for all instances of the node
1886
being evacuated. As such, any existing IAllocator scripts need to be
1887
updated, otherwise the above command will fail due to the unknown
1888
request. The provided "dumb" allocator has not been updated; but the
1889
ganeti-htools package supports the new protocol since version 0.2.4.
1890

    
1891
Another important change is increased validation of node and instance
1892
names. This might create problems in special cases, if invalid host
1893
names are being used.
1894

    
1895
Also, a new layer of hypervisor parameters has been added, that sits at
1896
OS level between the cluster defaults and the instance ones. This allows
1897
customisation of virtualization parameters depending on the installed
1898
OS. For example instances with OS 'X' may have a different KVM kernel
1899
(or any other parameter) than the cluster defaults. This is intended to
1900
help managing a multiple OSes on the same cluster, without manual
1901
modification of each instance's parameters.
1902

    
1903
A tool for merging clusters, ``cluster-merge``, has been added in the
1904
tools sub-directory.
1905

    
1906
Bug fixes
1907
~~~~~~~~~
1908

    
1909
- Improved the int/float conversions that should make the code more
1910
  robust in face of errors from the node daemons
1911
- Fixed the remove node code in case of internal configuration errors
1912
- Fixed the node daemon behaviour in face of inconsistent queue
1913
  directory (e.g. read-only file-system where we can't open the files
1914
  read-write, etc.)
1915
- Fixed the behaviour of gnt-node modify for master candidate demotion;
1916
  now it either aborts cleanly or, if given the new "auto_promote"
1917
  parameter, will automatically promote other nodes as needed
1918
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
1919
  completely prevent Ganeti from working
1920
- Fixed bug for instance export when not all disks were successfully
1921
  exported
1922
- Fixed behaviour of node add when the new node is slow in starting up
1923
  the node daemon
1924
- Fixed handling of signals in the LUXI client, which should improve
1925
  behaviour of command-line scripts
1926
- Added checks for invalid node/instance names in the configuration (now
1927
  flagged during cluster verify)
1928
- Fixed watcher behaviour for disk activation errors
1929
- Fixed two potentially endless loops in http library, which led to the
1930
  RAPI daemon hanging and consuming 100% CPU in some cases
1931
- Fixed bug in RAPI daemon related to hashed passwords
1932
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
1933
  instances
1934
- Enhanced compatibility with non-Debian OSes, but not using absolute
1935
  path in some commands and allowing customisation of the ssh
1936
  configuration directory
1937
- Fixed possible future issue with new Python versions by abiding to the
1938
  proper use of ``__slots__`` attribute on classes
1939
- Added checks that should prevent directory traversal attacks
1940
- Many documentation fixes based on feedback from users
1941

    
1942
New features
1943
~~~~~~~~~~~~
1944

    
1945
- Added an "early_release" more for instance replace disks and node
1946
  evacuate, where we release locks earlier and thus allow higher
1947
  parallelism within the cluster
1948
- Added watcher hooks, intended to allow the watcher to restart other
1949
  daemons (e.g. from the ganeti-nbma project), but they can be used of
1950
  course for any other purpose
1951
- Added a compile-time disable for DRBD barriers, to increase
1952
  performance if the administrator trusts the power supply or the
1953
  storage system to not lose writes
1954
- Added the option of using syslog for logging instead of, or in
1955
  addition to, Ganeti's own log files
1956
- Removed boot restriction for paravirtual NICs for KVM, recent versions
1957
  can indeed boot from a paravirtual NIC
1958
- Added a generic debug level for many operations; while this is not
1959
  used widely yet, it allows one to pass the debug value all the way to
1960
  the OS scripts
1961
- Enhanced the hooks environment for instance moves (failovers,
1962
  migrations) where the primary/secondary nodes changed during the
1963
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1964
- Enhanced data validations for many user-supplied values; one important
1965
  item is the restrictions imposed on instance and node names, which
1966
  might reject some (invalid) host names
1967
- Add a configure-time option to disable file-based storage, if it's not
1968
  needed; this allows greater security separation between the master
1969
  node and the other nodes from the point of view of the inter-node RPC
1970
  protocol
1971
- Added user notification in interactive tools if job is waiting in the
1972
  job queue or trying to acquire locks
1973
- Added log messages when a job is waiting for locks
1974
- Added filtering by node tags in instance operations which admit
1975
  multiple instances (start, stop, reboot, reinstall)
1976
- Added a new tool for cluster mergers, ``cluster-merge``
1977
- Parameters from command line which are of the form ``a=b,c=d`` can now
1978
  use backslash escapes to pass in values which contain commas,
1979
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1980
  ``b,c``
1981
- For KVM, the instance name is the first parameter passed to KVM, so
1982
  that it's more visible in the process list
1983

    
1984

    
1985
Version 2.1.0
1986
-------------
1987

    
1988
*(Released Tue, 2 Mar 2010)*
1989

    
1990
Ganeti 2.1 brings many improvements with it. Major changes:
1991

    
1992
- Added infrastructure to ease automated disk repairs
1993
- Added new daemon to export configuration data in a cheaper way than
1994
  using the remote API
1995
- Instance NICs can now be routed instead of being associated with a
1996
  networking bridge
1997
- Improved job locking logic to reduce impact of jobs acquiring multiple
1998
  locks waiting for other long-running jobs
1999

    
2000
In-depth implementation details can be found in the Ganeti 2.1 design
2001
document.
2002

    
2003
Details
2004
~~~~~~~
2005

    
2006
- Added chroot hypervisor
2007
- Added more options to xen-hvm hypervisor (``kernel_path`` and
2008
  ``device_model``)
2009
- Added more options to xen-pvm hypervisor (``use_bootloader``,
2010
  ``bootloader_path`` and ``bootloader_args``)
2011
- Added the ``use_localtime`` option for the xen-hvm and kvm
2012
  hypervisors, and the default value for this has changed to false (in
2013
  2.0 xen-hvm always enabled it)
2014
- Added luxi call to submit multiple jobs in one go
2015
- Added cluster initialization option to not modify ``/etc/hosts``
2016
  file on nodes
2017
- Added network interface parameters
2018
- Added dry run mode to some LUs
2019
- Added RAPI resources:
2020

    
2021
  - ``/2/instances/[instance_name]/info``
2022
  - ``/2/instances/[instance_name]/replace-disks``
2023
  - ``/2/nodes/[node_name]/evacuate``
2024
  - ``/2/nodes/[node_name]/migrate``
2025
  - ``/2/nodes/[node_name]/role``
2026
  - ``/2/nodes/[node_name]/storage``
2027
  - ``/2/nodes/[node_name]/storage/modify``
2028
  - ``/2/nodes/[node_name]/storage/repair``
2029

    
2030
- Added OpCodes to evacuate or migrate all instances on a node
2031
- Added new command to list storage elements on nodes (``gnt-node
2032
  list-storage``) and modify them (``gnt-node modify-storage``)
2033
- Added new ssconf files with master candidate IP address
2034
  (``ssconf_master_candidates_ips``), node primary IP address
2035
  (``ssconf_node_primary_ips``) and node secondary IP address
2036
  (``ssconf_node_secondary_ips``)
2037
- Added ``ganeti-confd`` and a client library to query the Ganeti
2038
  configuration via UDP
2039
- Added ability to run hooks after cluster initialization and before
2040
  cluster destruction
2041
- Added automatic mode for disk replace (``gnt-instance replace-disks
2042
  --auto``)
2043
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
2044
  after catastrophic data-loss
2045
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
2046
  groups
2047
- Added ``gnt-instance move`` command to move instances
2048
- Added ``gnt-cluster watcher`` command to control watcher
2049
- Added ``gnt-node powercycle`` command to powercycle nodes
2050
- Added new job status field ``lock_status``
2051
- Added parseable error codes to cluster verification (``gnt-cluster
2052
  verify --error-codes``) and made output less verbose (use
2053
  ``--verbose`` to restore previous behaviour)
2054
- Added UUIDs to the main config entities (cluster, nodes, instances)
2055
- Added support for OS variants
2056
- Added support for hashed passwords in the Ganeti remote API users file
2057
  (``rapi_users``)
2058
- Added option to specify maximum timeout on instance shutdown
2059
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
2060
- Added new helper script to start and stop Ganeti daemons
2061
  (``daemon-util``), with the intent to reduce the work necessary to
2062
  adjust Ganeti for non-Debian distributions and to start/stop daemons
2063
  from one place
2064
- Added more unittests
2065
- Fixed critical bug in ganeti-masterd startup
2066
- Removed the configure-time ``kvm-migration-port`` parameter, this is
2067
  now customisable at the cluster level for both the KVM and Xen
2068
  hypervisors using the new ``migration_port`` parameter
2069
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
2070
  reinstalling an instance
2071
- Allowed ``@`` in tag names
2072
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
2073
- Many documentation updates
2074
- Distribute hypervisor files on ``gnt-cluster redist-conf``
2075
- ``gnt-instance reinstall`` can now reinstall multiple instances
2076
- Updated many command line parameters
2077
- Introduced new OS API version 15
2078
- No longer support a default hypervisor
2079
- Treat virtual LVs as inexistent
2080
- Improved job locking logic to reduce lock contention
2081
- Match instance and node names case insensitively
2082
- Reimplemented bash completion script to be more complete
2083
- Improved burnin
2084

    
2085

    
2086
Version 2.0.6
2087
-------------
2088

    
2089
*(Released Thu, 4 Feb 2010)*
2090

    
2091
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2092
- Fix a string formatting bug
2093
- Improve safety of the code in some error paths
2094
- Improve data validation in the master of values returned from nodes
2095

    
2096

    
2097
Version 2.0.5
2098
-------------
2099

    
2100
*(Released Thu, 17 Dec 2009)*
2101

    
2102
- Fix security issue due to missing validation of iallocator names; this
2103
  allows local and remote execution of arbitrary executables
2104
- Fix failure of gnt-node list during instance removal
2105
- Ship the RAPI documentation in the archive
2106

    
2107

    
2108
Version 2.0.4
2109
-------------
2110

    
2111
*(Released Wed, 30 Sep 2009)*
2112

    
2113
- Fixed many wrong messages
2114
- Fixed a few bugs related to the locking library
2115
- Fixed MAC checking at instance creation time
2116
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
2117
- Fixed a few issues related to signal handling in both daemons and
2118
  scripts
2119
- Fixed the example startup script provided
2120
- Fixed insserv dependencies in the example startup script (patch from
2121
  Debian)
2122
- Fixed handling of drained nodes in the iallocator framework
2123
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2124
  #528618)
2125
- Fixed error related to invalid job IDs in job polling
2126
- Fixed job/opcode persistence on unclean master shutdown
2127
- Fixed handling of partial job processing after unclean master
2128
  shutdown
2129
- Fixed error reporting from LUs, previously all errors were converted
2130
  into execution errors
2131
- Fixed error reporting from burnin
2132
- Decreased significantly the memory usage of the job queue
2133
- Optimised slightly multi-job submission
2134
- Optimised slightly opcode loading
2135
- Backported the multi-job submit framework from the development
2136
  branch; multi-instance start and stop should be faster
2137
- Added script to clean archived jobs after 21 days; this will reduce
2138
  the size of the queue directory
2139
- Added some extra checks in disk size tracking
2140
- Added an example ethers hook script
2141
- Added a cluster parameter that prevents Ganeti from modifying of
2142
  /etc/hosts
2143
- Added more node information to RAPI responses
2144
- Added a ``gnt-job watch`` command that allows following the ouput of a
2145
  job
2146
- Added a bind-address option to ganeti-rapi
2147
- Added more checks to the configuration verify
2148
- Enhanced the burnin script such that some operations can be retried
2149
  automatically
2150
- Converted instance reinstall to multi-instance model
2151

    
2152

    
2153
Version 2.0.3
2154
-------------
2155

    
2156
*(Released Fri, 7 Aug 2009)*
2157

    
2158
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2159
  to allow using the pre-2.0.2 behaviour in activation, if any existing
2160
  instances have mismatched disk sizes in the configuration
2161
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
2162
  any configuration mismatches for disk sizes
2163
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2164
  failover to work on two-node clusters
2165
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2166
  unusable
2167
- Fixed detection of OS script errors in ``gnt-backup export``
2168
- Fixed exit code of ``gnt-backup export``
2169

    
2170

    
2171
Version 2.0.2
2172
-------------
2173

    
2174
*(Released Fri, 17 Jul 2009)*
2175

    
2176
- Added experimental support for stripped logical volumes; this should
2177
  enhance performance but comes with a higher complexity in the block
2178
  device handling; stripping is only enabled when passing
2179
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2180
  affected even in the non-stripped mode
2181
- Improved resiliency against transient failures at the end of DRBD
2182
  resyncs, and in general of DRBD resync checks
2183
- Fixed a couple of issues with exports and snapshot errors
2184
- Fixed a couple of issues in instance listing
2185
- Added display of the disk size in ``gnt-instance info``
2186
- Fixed checking for valid OSes in instance creation
2187
- Fixed handling of the "vcpus" parameter in instance listing and in
2188
  general of invalid parameters
2189
- Fixed http server library, and thus RAPI, to handle invalid
2190
  username/password combinations correctly; this means that now they
2191
  report unauthorized for queries too, not only for modifications,
2192
  allowing earlier detect of configuration problems
2193
- Added a new "role" node list field, equivalent to the master/master
2194
  candidate/drained/offline flags combinations
2195
- Fixed cluster modify and changes of candidate pool size
2196
- Fixed cluster verify error messages for wrong files on regular nodes
2197
- Fixed a couple of issues with node demotion from master candidate role
2198
- Fixed node readd issues
2199
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2200
- Added a new ``--no-voting`` option for masterfailover to fix failover
2201
  on two-nodes clusters when the former master node is unreachable
2202
- Added instance reinstall over RAPI
2203

    
2204

    
2205
Version 2.0.1
2206
-------------
2207

    
2208
*(Released Tue, 16 Jun 2009)*
2209

    
2210
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2211
  allow re-adding the start in single-user option (regression from 1.2)
2212
- the watcher writes the instance status to a file, to allow monitoring
2213
  to report the instance status (from the master) based on cached
2214
  results of the watcher's queries; while this can get stale if the
2215
  watcher is being locked due to other work on the cluster, this is
2216
  still an improvement
2217
- the watcher now also restarts the node daemon and the rapi daemon if
2218
  they died
2219
- fixed the watcher to handle full and drained queue cases
2220
- hooks export more instance data in the environment, which helps if
2221
  hook scripts need to take action based on the instance's properties
2222
  (no longer need to query back into ganeti)
2223
- instance failovers when the instance is stopped do not check for free
2224
  RAM, so that failing over a stopped instance is possible in low memory
2225
  situations
2226
- rapi uses queries for tags instead of jobs (for less job traffic), and
2227
  for cluster tags it won't talk to masterd at all but read them from
2228
  ssconf
2229
- a couple of error handling fixes in RAPI
2230
- drbd handling: improved the error handling of inconsistent disks after
2231
  resync to reduce the frequency of "there are some degraded disks for
2232
  this instance" messages
2233
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2234
  error handling path called a wrong function name)
2235

    
2236

    
2237
Version 2.0.0
2238
-------------
2239

    
2240
*(Released Wed, 27 May 2009)*
2241

    
2242
- no changes from rc5
2243

    
2244

    
2245
Version 2.0 rc5
2246
---------------
2247

    
2248
*(Released Wed, 20 May 2009)*
2249

    
2250
- fix a couple of bugs (validation, argument checks)
2251
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2252
- some small improvements to RAPI and IAllocator
2253
- make watcher automatically start the master daemon if down
2254

    
2255

    
2256
Version 2.0 rc4
2257
---------------
2258

    
2259
*(Released Mon, 27 Apr 2009)*
2260

    
2261
- change the OS list to not require locks; this helps with big clusters
2262
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2263
  volume group is broken
2264
- ``gnt-instance info``, without any arguments, doesn't run for all
2265
  instances anymore; either pass ``--all`` or pass the desired
2266
  instances; this helps against mistakes on big clusters where listing
2267
  the information for all instances takes a long time
2268
- miscellaneous doc and man pages fixes
2269

    
2270

    
2271
Version 2.0 rc3
2272
---------------
2273

    
2274
*(Released Wed, 8 Apr 2009)*
2275

    
2276
- Change the internal locking model of some ``gnt-node`` commands, in
2277
  order to reduce contention (and blocking of master daemon) when
2278
  batching many creation/reinstall jobs
2279
- Fixes to Xen soft reboot
2280
- No longer build documentation at build time, instead distribute it in
2281
  the archive, in order to reduce the need for the whole docbook/rst
2282
  toolchains
2283

    
2284

    
2285
Version 2.0 rc2
2286
---------------
2287

    
2288
*(Released Fri, 27 Mar 2009)*
2289

    
2290
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2291
- Fix watcher startup sequence, improves the behaviour of busy clusters
2292
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2293
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2294
  bind address and other places
2295
- Some documentation fixes and updates
2296

    
2297

    
2298
Version 2.0 rc1
2299
---------------
2300

    
2301
*(Released Mon, 2 Mar 2009)*
2302

    
2303
- More documentation updates, now all docs should be more-or-less
2304
  up-to-date
2305
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2306
  etc.)
2307
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2308
  and KVM)
2309
- Fix an issue related to $libdir/run/ganeti and cluster creation
2310

    
2311

    
2312
Version 2.0 beta2
2313
-----------------
2314

    
2315
*(Released Thu, 19 Feb 2009)*
2316

    
2317
- Xen PVM and KVM have switched the default value for the instance root
2318
  disk to the first partition on the first drive, instead of the whole
2319
  drive; this means that the OS installation scripts must be changed
2320
  accordingly
2321
- Man pages have been updated
2322
- RAPI has been switched by default to HTTPS, and the exported functions
2323
  should all work correctly
2324
- RAPI v1 has been removed
2325
- Many improvements to the KVM hypervisor
2326
- Block device errors are now better reported
2327
- Many other bugfixes and small improvements
2328

    
2329

    
2330
Version 2.0 beta1
2331
-----------------
2332

    
2333
*(Released Mon, 26 Jan 2009)*
2334

    
2335
- Version 2 is a general rewrite of the code and therefore the
2336
  differences are too many to list, see the design document for 2.0 in
2337
  the ``doc/`` subdirectory for more details
2338
- In this beta version there is not yet a migration path from 1.2 (there
2339
  will be one in the final 2.0 release)
2340
- A few significant changes are:
2341

    
2342
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2343
    various ``gnt-*`` commands are just front-ends to it
2344
  - all the commands are entered into, and executed from a job queue,
2345
    see the ``gnt-job(8)`` manpage
2346
  - the RAPI daemon supports read-write operations, secured by basic
2347
    HTTP authentication on top of HTTPS
2348
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2349
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2350
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2351
  - DRBD devices are using statically allocated minor numbers, which
2352
    will be assigned to existing instances during the migration process
2353
  - there is support for both Xen PVM and Xen HVM instances running on
2354
    the same cluster
2355
  - KVM virtualization is supported too
2356
  - file-based storage has been implemented, which means that it is
2357
    possible to run the cluster without LVM and DRBD storage, for
2358
    example using a shared filesystem exported from shared storage (and
2359
    still have live migration)
2360

    
2361

    
2362
Version 1.2.7
2363
-------------
2364

    
2365
*(Released Tue, 13 Jan 2009)*
2366

    
2367
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2368
- Reuse the old instance mac address by default on instance import, if
2369
  the instance name is the same.
2370
- Handle situations in which the node info rpc returns incomplete
2371
  results (issue 46)
2372
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2373
- Improved version of batcher:
2374

    
2375
  - state file support
2376
  - instance mac address support
2377
  - support for HVM clusters/instances
2378

    
2379
- Add an option to show the number of cpu sockets and nodes in
2380
  ``gnt-node list``
2381
- Support OSes that handle more than one version of the OS api (but do
2382
  not change the current API in any other way)
2383
- Fix ``gnt-node migrate``
2384
- ``gnt-debug`` man page
2385
- Fixes various more typos and small issues
2386
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2387

    
2388

    
2389
Version 1.2.6
2390
-------------
2391

    
2392
*(Released Wed, 24 Sep 2008)*
2393

    
2394
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2395
  type of disk exported to fully virtualized instances.
2396
- provide access to the serial console of HVM instances
2397
- instance auto_balance flag, set by default. If turned off it will
2398
  avoid warnings on cluster verify if there is not enough memory to fail
2399
  over an instance. in the future it will prevent automatically failing
2400
  it over when we will support that.
2401
- batcher tool for instance creation, see ``tools/README.batcher``
2402
- ``gnt-instance reinstall --select-os`` to interactively select a new
2403
  operating system when reinstalling an instance.
2404
- when changing the memory amount on instance modify a check has been
2405
  added that the instance will be able to start. also warnings are
2406
  emitted if the instance will not be able to fail over, if auto_balance
2407
  is true.
2408
- documentation fixes
2409
- sync fields between ``gnt-instance list/modify/add/import``
2410
- fix a race condition in drbd when the sync speed was set after giving
2411
  the device a remote peer.
2412

    
2413

    
2414
Version 1.2.5
2415
-------------
2416

    
2417
*(Released Tue, 22 Jul 2008)*
2418

    
2419
- note: the allowed size and number of tags per object were reduced
2420
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2421
- fixed twisted 8.x compatibility
2422
- fixed ``gnt-instance replace-disks`` with iallocator
2423
- add TCP keepalives on twisted connections to detect restarted nodes
2424
- disk increase support, see ``gnt-instance grow-disk``
2425
- implement bulk node/instance query for RAPI
2426
- add tags in node/instance listing (optional)
2427
- experimental migration (and live migration) support, read the man page
2428
  for ``gnt-instance migrate``
2429
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2430
  has some small improvements in handling its state file
2431

    
2432

    
2433
Version 1.2.4
2434
-------------
2435

    
2436
*(Released Fri, 13 Jun 2008)*
2437

    
2438
- Experimental readonly, REST-based remote API implementation;
2439
  automatically started on master node, TCP port 5080, if enabled by
2440
  ``--enable-rapi`` parameter to configure script.
2441
- Instance allocator support. Add and import instance accept a
2442
  ``--iallocator`` parameter, and call that instance allocator to decide
2443
  which node to use for the instance. The iallocator document describes
2444
  what's expected from an allocator script.
2445
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2446
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2447
  node is lost there is still enough memory to fail over the instances
2448
  that reside on it.
2449
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2450
  ``gnt-cluster verify``, to check for site-specific compliance. All the
2451
  hooks will run, and their output, if any, will be displayed. Any
2452
  failing hook will make the verification return an error value.
2453
- ``gnt-cluster verify`` now checks that its peers are reachable on the
2454
  primary and secondary interfaces
2455
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2456
  that is still declared as part of the cluster and has failed.
2457
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
2458
  specifying output fields, that just adds the chosen fields to the
2459
  default ones.
2460
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
2461
  export from the filesystem.
2462
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2463
  have been added. Using them you can enable/disable acpi and pae
2464
  support, and specify a path for a cd image to be exported to the
2465
  instance. These parameters as the name suggest only work on HVM
2466
  clusters.
2467
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2468
  PAE support will be set to the previously hardcoded values, but the
2469
  (previously hardcoded) path to the CDROM ISO image will be unset and
2470
  if required, needs to be set manually with ``gnt-instance modify``
2471
  after the upgrade.
2472
- The address to which an instance's VNC console is bound is now
2473
  selectable per-instance, rather than being cluster wide. Of course
2474
  this only applies to instances controlled via VNC, so currently just
2475
  applies to HVM clusters.
2476

    
2477

    
2478
Version 1.2.3
2479
-------------
2480

    
2481
*(Released Mon, 18 Feb 2008)*
2482

    
2483
- more tweaks to the disk activation code (especially helpful for DRBD)
2484
- change the default ``gnt-instance list`` output format, now there is
2485
  one combined status field (see the manpage for the exact values this
2486
  field will have)
2487
- some more fixes for the mac export to hooks change
2488
- make Ganeti not break with DRBD 8.2.x (which changed the version
2489
  format in ``/proc/drbd``) (issue 24)
2490
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2491
  template, allowing migration from DRBD0.7+MD to DRBD8
2492

    
2493

    
2494
Version 1.2.2
2495
-------------
2496

    
2497
*(Released Wed, 30 Jan 2008)*
2498

    
2499
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
2500
  support (issue 23)
2501
- add command aliases infrastructure and a few aliases
2502
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
2503
  man pages and the ``--help`` option of ``gnt-node
2504
  list``/``gnt-instance list``
2505
- fix ``gnt-backup list`` with down nodes (issue 21)
2506
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
2507
- fix the dist archive and add a check for including svn/git files in
2508
  the future
2509
- some developer-related changes: improve the burnin and the QA suite,
2510
  add an upload script for testing during development
2511

    
2512

    
2513
Version 1.2.1
2514
-------------
2515

    
2516
*(Released Wed, 16 Jan 2008)*
2517

    
2518
- experimental HVM support, read the install document, section
2519
  "Initializing the cluster"
2520
- allow for the PVM hypervisor per-instance kernel and initrd paths
2521
- add a new command ``gnt-cluster verify-disks`` which uses a new
2522
  algorithm to improve the reconnection of the DRBD pairs if the device
2523
  on the secondary node has gone away
2524
- make logical volume code auto-activate LVs at disk activation time
2525
- slightly improve the speed of activating disks
2526
- allow specification of the MAC address at instance creation time, and
2527
  changing it later via ``gnt-instance modify``
2528
- fix handling of external commands that generate lots of output on
2529
  stderr
2530
- update documentation with regard to minimum version of DRBD8 supported
2531

    
2532

    
2533
Version 1.2.0
2534
-------------
2535

    
2536
*(Released Tue, 4 Dec 2007)*
2537

    
2538
- Log the ``xm create`` output to the node daemon log on failure (to
2539
  help diagnosing the error)
2540
- In debug mode, log all external commands output if failed to the logs
2541
- Change parsing of lvm commands to ignore stderr
2542

    
2543

    
2544
Version 1.2 beta3
2545
-----------------
2546

    
2547
*(Released Wed, 28 Nov 2007)*
2548

    
2549
- Another round of updates to the DRBD 8 code to deal with more failures
2550
  in the replace secondary node operation
2551
- Some more logging of failures in disk operations (lvm, drbd)
2552
- A few documentation updates
2553
- QA updates
2554

    
2555

    
2556
Version 1.2 beta2
2557
-----------------
2558

    
2559
*(Released Tue, 13 Nov 2007)*
2560

    
2561
- Change configuration file format from Python's Pickle to JSON.
2562
  Upgrading is possible using the cfgupgrade utility.
2563
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
2564
  faster replace disks and is more stable (DRBD 8 has many improvements
2565
  compared to DRBD 0.7)
2566
- Added command line tags support (see man pages for ``gnt-instance``,
2567
  ``gnt-node``, ``gnt-cluster``)
2568
- Added instance rename support
2569
- Added multi-instance startup/shutdown
2570
- Added cluster rename support
2571
- Added ``gnt-node evacuate`` to simplify some node operations
2572
- Added instance reboot operation that can speedup reboot as compared to
2573
  stop and start
2574
- Soften the requirement that hostnames are in FQDN format
2575
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
2576
  reboots
2577
- Removed dependency on debian's patched fping that uses the
2578
  non-standard ``-S`` option
2579
- Now the OS definitions are searched for in multiple, configurable
2580
  paths (easier for distros to package)
2581
- Some changes to the hooks infrastructure (especially the new
2582
  post-configuration update hook)
2583
- Other small bugfixes
2584

    
2585
.. vim: set textwidth=72 syntax=rst :
2586
.. Local Variables:
2587
.. mode: rst
2588
.. fill-column: 72
2589
.. End: