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1
News
2
====
3

    
4

    
5
Version 2.7.0 rc2
6
-----------------
7

    
8
*(unreleased)*
9

    
10
- ``devel/upload`` now works when ``/var/run`` on the target nodes is a
11
  symlink.
12
- Disks added through ``gnt-instance modify`` or created through
13
  ``gnt-instance recreate-disks`` are wiped, if the
14
  ``prealloc_wipe_disks`` flag is set.
15
- If wiping newly created disks fails, the disks are removed. Also,
16
  partial failures in creating disks through ``gnt-instance modify``
17
  triggers a cleanup of the partially-created disks.
18
- Removing the master IP address doesn't fail if the address has been
19
  already removed.
20

    
21

    
22
Version 2.7.0 rc1
23
-----------------
24

    
25
*(Released Fri, 3 May 2013)*
26

    
27
Incompatible/important changes
28
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
29

    
30
- Instance policies for disk size were documented to be on a per-disk
31
  basis, but hail applied them to the sum of all disks. This has been
32
  fixed.
33
- ``hbal`` will now exit with status 0 if, during job execution over
34
  LUXI, early exit has been requested and all jobs are successful;
35
  before, exit status 1 was used, which cannot be differentiated from
36
  "job error" case
37
- Compatibility with newer versions of rbd has been fixed
38
- ``gnt-instance batch-create`` has been changed to use the bulk create
39
  opcode from Ganeti. This lead to incompatible changes in the format of
40
  the JSON file. It's now not a custom dict anymore but a dict
41
  compatible with the ``OpInstanceCreate`` opcode.
42
- Parent directories for file storage need to be listed in
43
  ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
44
  write the file automatically based on old configuration values, but it
45
  can not distribute it across all nodes and the file contents should be
46
  verified. Use ``gnt-cluster copyfile
47
  $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
48
  upgraded. The reason for requiring this list of paths now is that
49
  before it would have been possible to inject new paths via RPC,
50
  allowing files to be created in arbitrary locations. The RPC protocol
51
  is protected using SSL/X.509 certificates, but as a design principle
52
  Ganeti does not permit arbitrary paths to be passed.
53
- The parsing of the variants file for OSes (see
54
  :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
55
  lines and comment lines (starting with ``#``) are ignored for better
56
  readability.
57
- The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
58
  longer available. ``gnt-node add`` now invokes a new tool on the
59
  destination node, named ``prepare-node-join``, to configure the SSH
60
  daemon. Paramiko is no longer necessary to configure nodes' SSH
61
  daemons via ``gnt-node add``.
62
- Draining (``gnt-cluster queue drain``) and un-draining the job queue
63
  (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
64
  the flag is not reset after a master failover.
65
- Python 2.4 has *not* been tested with this release. Using 2.6 or above
66
  is recommended. 2.6 will be mandatory from the 2.8 series.
67

    
68

    
69
New features
70
~~~~~~~~~~~~
71

    
72
- New network management functionality to support automatic allocation
73
  of IP addresses and managing of network parameters. See
74
  :manpage:`gnt-network(8)` for more details.
75
- New external storage backend, to allow managing arbitrary storage
76
  systems external to the cluster. See
77
  :manpage:`ganeti-extstorage-interface(7)`.
78
- New ``exclusive-storage`` node parameter added, restricted to
79
  nodegroup level. When it's set to true, physical disks are assigned in
80
  an exclusive fashion to instances, as documented in :doc:`Partitioned
81
  Ganeti <design-partitioned>`.  Currently, only instances using the
82
  ``plain`` disk template are supported.
83
- The KVM hypervisor has been updated with many new hypervisor
84
  parameters, including a generic one for passing arbitrary command line
85
  values. See a complete list in :manpage:`gnt-instance(8)`. It is now
86
  compatible up to qemu 1.4.
87
- A new tool, called ``mon-collector``, is the stand-alone executor of
88
  the data collectors for a monitoring system. As of this version, it
89
  just includes the DRBD data collector, that can be executed by calling
90
  ``mon-collector`` using the ``drbd`` parameter. See
91
  :manpage:`mon-collector(7)`.
92
- A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
93
  for RAPI users. It allows granting permissions to query for
94
  information to a specific user without giving
95
  :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
96
- A new tool named ``node-cleanup`` has been added. It cleans remains of
97
  a cluster from a machine by stopping all daemons, removing
98
  certificates and ssconf files. Unless the ``--no-backup`` option is
99
  given, copies of the certificates are made.
100
- Instance creations now support the use of opportunistic locking,
101
  potentially speeding up the (parallel) creation of multiple instances.
102
  This feature is currently only available via the :doc:`RAPI
103
  <rapi>` interface and when an instance allocator is used. If the
104
  ``opportunistic_locking`` parameter is set the opcode will try to
105
  acquire as many locks as possible, but will not wait for any locks
106
  held by other opcodes. If not enough resources can be found to
107
  allocate the instance, the temporary error code
108
  :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
109
  retried thereafter, with or without opportunistic locking.
110
- New experimental linux-ha resource scripts.
111
- Restricted-commands support: ganeti can now be asked (via command line
112
  or rapi) to perform commands on a node. These are passed via ganeti
113
  RPC rather than ssh. This functionality is restricted to commands
114
  specified on the ``$sysconfdir/ganeti/restricted-commands`` for security
115
  reasons. The file is not copied automatically.
116

    
117

    
118
Misc changes
119
~~~~~~~~~~~~
120

    
121
- Diskless instances are now externally mirrored (Issue 237). This for
122
  now has only been tested in conjunction with explicit target nodes for
123
  migration/failover.
124
- Queries not needing locks or RPC access to the node can now be
125
  performed by the confd daemon, making them independent from jobs, and
126
  thus faster to execute. This is selectable at configure time.
127
- The functionality for allocating multiple instances at once has been
128
  overhauled and is now also available through :doc:`RAPI <rapi>`.
129

    
130

    
131
Since beta3:
132

    
133
- Fix kvm compatibility with qemu 1.4 (Issue 389)
134
- Documentation updates (admin guide, upgrade notes, install
135
  instructions) (Issue 372)
136
- Fix gnt-group list nodes and instances count (Issue 436)
137
- Fix compilation without non-mandatory libraries (Issue 441)
138
- Fix xen-hvm hypervisor forcing nics to type 'ioemu' (Issue 247)
139
- Make confd logging more verbose at INFO level (Issue 435)
140
- Improve "networks" documentation in :manpage:`gnt-instance(8)`
141
- Fix failure path for instance storage type conversion (Issue 229)
142
- Update htools text backend documentation
143
- Improve the renew-crypto section of :manpage:`gnt-cluster(8)`
144
- Disable inter-cluster instance move for file-based instances, because
145
  it is dependant on instance export, which is not supported for
146
  file-based instances. (Issue 414)
147
- Fix gnt-job crashes on non-ascii characters (Issue 427)
148
- Fix volume group checks on non-vm-capable nodes (Issue 432)
149

    
150

    
151
Version 2.7.0 beta3
152
-------------------
153

    
154
*(Released Mon, 22 Apr 2013)*
155

    
156
This was the third beta release of the 2.7 series. Since beta2:
157

    
158
- Fix hail to verify disk instance policies on a per-disk basis (Issue 418).
159
- Fix data loss on wrong usage of ``gnt-instance move``
160
- Properly export errors in confd-based job queries
161
- Add ``users-setup`` tool
162
- Fix iallocator protocol to report 0 as a disk size for diskless
163
  instances. This avoids hail breaking when a diskless instance is
164
  present.
165
- Fix job queue directory permission problem that made confd job queries
166
  fail. This requires running an ``ensure-dirs --full-run`` on upgrade
167
  for access to archived jobs (Issue 406).
168
- Limit the sizes of networks supported by ``gnt-network`` to something
169
  between a ``/16`` and a ``/30`` to prevent memory bloat and crashes.
170
- Fix bugs in instance disk template conversion
171
- Fix GHC 7 compatibility
172
- Fix ``burnin`` install path (Issue 426).
173
- Allow very small disk grows (Issue 347).
174
- Fix a ``ganeti-noded`` memory bloat introduced in 2.5, by making sure
175
  that noded doesn't import masterd code (Issue 419).
176
- Make sure the default metavg at cluster init is the same as the vg, if
177
  unspecified (Issue 358).
178
- Fix cleanup of partially created disks (part of Issue 416)
179

    
180

    
181
Version 2.7.0 beta2
182
-------------------
183

    
184
*(Released Tue, 2 Apr 2013)*
185

    
186
This was the second beta release of the 2.7 series. Since beta1:
187

    
188
- Networks no longer have a "type" slot, since this information was
189
  unused in Ganeti: instead of it tags should be used.
190
- The rapi client now has a ``target_node`` option to MigrateInstance.
191
- Fix early exit return code for hbal (Issue 386).
192
- Fix ``gnt-instance migrate/failover -n`` (Issue 396).
193
- Fix ``rbd showmapped`` output parsing (Issue 312).
194
- Networks are now referenced indexed by UUID, rather than name. This
195
  will require running cfgupgrade, from 2.7.0beta1, if networks are in
196
  use.
197
- The OS environment now includes network information.
198
- Deleting of a network is now disallowed if any instance nic is using
199
  it, to prevent dangling references.
200
- External storage is now documented in man pages.
201
- The exclusive_storage flag can now only be set at nodegroup level.
202
- Hbal can now submit an explicit priority with its jobs.
203
- Many network related locking fixes.
204
- Bump up the required pylint version to 0.25.1.
205
- Fix the ``no_remember`` option in RAPI client.
206
- Many ipolicy related tests, qa, and fixes.
207
- Many documentation improvements and fixes.
208
- Fix building with ``--disable-file-storage``.
209
- Fix ``-q`` option in htools, which was broken if passed more than
210
  once.
211
- Some haskell/python interaction improvements and fixes.
212
- Fix iallocator in case of missing LVM storage.
213
- Fix confd config load in case of ``--no-lvm-storage``.
214
- The confd/query functionality is now mentioned in the security
215
  documentation.
216

    
217

    
218
Version 2.7.0 beta1
219
-------------------
220

    
221
*(Released Wed, 6 Feb 2013)*
222

    
223
This was the first beta release of the 2.7 series. All important changes
224
are listed in the latest 2.7 entry.
225

    
226

    
227
Version 2.6.2
228
-------------
229

    
230
*(Released Fri, 21 Dec 2012)*
231

    
232
Important behaviour change: hbal won't rebalance anymore instances which
233
have the ``auto_balance`` attribute set to false. This was the intention
234
all along, but until now it only skipped those from the N+1 memory
235
reservation (DRBD-specific).
236

    
237
A significant number of bug fixes in this release:
238

    
239
- Fixed disk adoption interaction with ipolicy checks.
240
- Fixed networking issues when instances are started, stopped or
241
  migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
242
- Fixed the warning in cluster verify for shared storage instances not
243
  being redundant.
244
- Fixed removal of storage directory on shared file storage (issue 262).
245
- Fixed validation of LVM volume group name in OpClusterSetParams
246
  (``gnt-cluster modify``) (issue 285).
247
- Fixed runtime memory increases (``gnt-instance modify -m``).
248
- Fixed live migration under Xen's ``xl`` mode.
249
- Fixed ``gnt-instance console`` with ``xl``.
250
- Fixed building with newer Haskell compiler/libraries.
251
- Fixed PID file writing in Haskell daemons (confd); this prevents
252
  restart issues if confd was launched manually (outside of
253
  ``daemon-util``) while another copy of it was running
254
- Fixed a type error when doing live migrations with KVM (issue 297) and
255
  the error messages for failing migrations have been improved.
256
- Fixed opcode validation for the out-of-band commands (``gnt-node
257
  power``).
258
- Fixed a type error when unsetting OS hypervisor parameters (issue
259
  311); now it's possible to unset all OS-specific hypervisor
260
  parameters.
261
- Fixed the ``dry-run`` mode for many operations: verification of
262
  results was over-zealous but didn't take into account the ``dry-run``
263
  operation, resulting in "wrong" failures.
264
- Fixed bash completion in ``gnt-job list`` when the job queue has
265
  hundreds of entries; especially with older ``bash`` versions, this
266
  results in significant CPU usage.
267

    
268
And lastly, a few other improvements have been made:
269

    
270
- Added option to force master-failover without voting (issue 282).
271
- Clarified error message on lock conflict (issue 287).
272
- Logging of newly submitted jobs has been improved (issue 290).
273
- Hostname checks have been made uniform between instance rename and
274
  create (issue 291).
275
- The ``--submit`` option is now supported by ``gnt-debug delay``.
276
- Shutting down the master daemon by sending SIGTERM now stops it from
277
  processing jobs waiting for locks; instead, those jobs will be started
278
  once again after the master daemon is started the next time (issue
279
  296).
280
- Support for Xen's ``xl`` program has been improved (besides the fixes
281
  above).
282
- Reduced logging noise in the Haskell confd daemon (only show one log
283
  entry for each config reload, instead of two).
284
- Several man page updates and typo fixes.
285

    
286

    
287
Version 2.6.1
288
-------------
289

    
290
*(Released Fri, 12 Oct 2012)*
291

    
292
A small bugfix release. Among the bugs fixed:
293

    
294
- Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
295
  made the command unusable.
296
- Commands that issue many jobs don't fail anymore just because some jobs
297
  take so long that other jobs are archived.
298
- Failures during ``gnt-instance reinstall`` are reflected by the exit
299
  status.
300
- Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
301
  DRBD is enabled.
302
- When ``always_failover`` is set, ``--allow-failover`` is not required
303
  in migrate commands anymore.
304
- ``bash_completion`` works even if extglob is disabled.
305
- Fixed bug with locks that made failover for RDB-based instances fail.
306
- Fixed bug in non-mirrored instance allocation that made Ganeti choose
307
  a random node instead of one based on the allocator metric.
308
- Support for newer versions of pylint and pep8.
309
- Hail doesn't fail anymore when trying to add an instance of type
310
  ``file``, ``sharedfile`` or ``rbd``.
311
- Added new Makefile target to rebuild the whole distribution, so that
312
  all files are included.
313

    
314

    
315
Version 2.6.0
316
-------------
317

    
318
*(Released Fri, 27 Jul 2012)*
319

    
320

    
321
.. attention:: The ``LUXI`` protocol has been made more consistent
322
   regarding its handling of command arguments. This, however, leads to
323
   incompatibility issues with previous versions. Please ensure that you
324
   restart Ganeti daemons soon after the upgrade, otherwise most
325
   ``LUXI`` calls (job submission, setting/resetting the drain flag,
326
   pausing/resuming the watcher, cancelling and archiving jobs, querying
327
   the cluster configuration) will fail.
328

    
329

    
330
New features
331
~~~~~~~~~~~~
332

    
333
Instance run status
334
+++++++++++++++++++
335

    
336
The current ``admin_up`` field, which used to denote whether an instance
337
should be running or not, has been removed. Instead, ``admin_state`` is
338
introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
339

    
340
The rational behind this is that an instance being “down” can have
341
different meanings:
342

    
343
- it could be down during a reboot
344
- it could be temporarily be down for a reinstall
345
- or it could be down because it is deprecated and kept just for its
346
  disk
347

    
348
The previous Boolean state was making it difficult to do capacity
349
calculations: should Ganeti reserve memory for a down instance? Now, the
350
tri-state field makes it clear:
351

    
352
- in ``up`` and ``down`` state, all resources are reserved for the
353
  instance, and it can be at any time brought up if it is down
354
- in ``offline`` state, only disk space is reserved for it, but not
355
  memory or CPUs
356

    
357
The field can have an extra use: since the transition between ``up`` and
358
``down`` and vice-versus is done via ``gnt-instance start/stop``, but
359
transition between ``offline`` and ``down`` is done via ``gnt-instance
360
modify``, it is possible to given different rights to users. For
361
example, owners of an instance could be allowed to start/stop it, but
362
not transition it out of the offline state.
363

    
364
Instance policies and specs
365
+++++++++++++++++++++++++++
366

    
367
In previous Ganeti versions, an instance creation request was not
368
limited on the minimum size and on the maximum size just by the cluster
369
resources. As such, any policy could be implemented only in third-party
370
clients (RAPI clients, or shell wrappers over ``gnt-*``
371
tools). Furthermore, calculating cluster capacity via ``hspace`` again
372
required external input with regards to instance sizes.
373

    
374
In order to improve these workflows and to allow for example better
375
per-node group differentiation, we introduced instance specs, which
376
allow declaring:
377

    
378
- minimum instance disk size, disk count, memory size, cpu count
379
- maximum values for the above metrics
380
- and “standard” values (used in ``hspace`` to calculate the standard
381
  sized instances)
382

    
383
The minimum/maximum values can be also customised at node-group level,
384
for example allowing more powerful hardware to support bigger instance
385
memory sizes.
386

    
387
Beside the instance specs, there are a few other settings belonging to
388
the instance policy framework. It is possible now to customise, per
389
cluster and node-group:
390

    
391
- the list of allowed disk templates
392
- the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
393
- the maximum ratio of instance to spindles (see below for more
394
  information) for local storage
395

    
396
All these together should allow all tools that talk to Ganeti to know
397
what are the ranges of allowed values for instances and the
398
over-subscription that is allowed.
399

    
400
For the VCPU/PCPU ratio, we already have the VCPU configuration from the
401
instance configuration, and the physical CPU configuration from the
402
node. For the spindle ratios however, we didn't track before these
403
values, so new parameters have been added:
404

    
405
- a new node parameter ``spindle_count``, defaults to 1, customisable at
406
  node group or node level
407
- at new backend parameter (for instances), ``spindle_use`` defaults to 1
408

    
409
Note that spindles in this context doesn't need to mean actual
410
mechanical hard-drives; it's just a relative number for both the node
411
I/O capacity and instance I/O consumption.
412

    
413
Instance migration behaviour
414
++++++++++++++++++++++++++++
415

    
416
While live-migration is in general desirable over failover, it is
417
possible that for some workloads it is actually worse, due to the
418
variable time of the “suspend” phase during live migration.
419

    
420
To allow the tools to work consistently over such instances (without
421
having to hard-code instance names), a new backend parameter
422
``always_failover`` has been added to control the migration/failover
423
behaviour. When set to True, all migration requests for an instance will
424
instead fall-back to failover.
425

    
426
Instance memory ballooning
427
++++++++++++++++++++++++++
428

    
429
Initial support for memory ballooning has been added. The memory for an
430
instance is no longer fixed (backend parameter ``memory``), but instead
431
can vary between minimum and maximum values (backend parameters
432
``minmem`` and ``maxmem``). Currently we only change an instance's
433
memory when:
434

    
435
- live migrating or failing over and instance and the target node
436
  doesn't have enough memory
437
- user requests changing the memory via ``gnt-instance modify
438
  --runtime-memory``
439

    
440
Instance CPU pinning
441
++++++++++++++++++++
442

    
443
In order to control the use of specific CPUs by instance, support for
444
controlling CPU pinning has been added for the Xen, HVM and LXC
445
hypervisors. This is controlled by a new hypervisor parameter
446
``cpu_mask``; details about possible values for this are in the
447
:manpage:`gnt-instance(8)`. Note that use of the most specific (precise
448
VCPU-to-CPU mapping) form will work well only when all nodes in your
449
cluster have the same amount of CPUs.
450

    
451
Disk parameters
452
+++++++++++++++
453

    
454
Another area in which Ganeti was not customisable were the parameters
455
used for storage configuration, e.g. how many stripes to use for LVM,
456
DRBD resync configuration, etc.
457

    
458
To improve this area, we've added disks parameters, which are
459
customisable at cluster and node group level, and which allow to
460
specify various parameters for disks (DRBD has the most parameters
461
currently), for example:
462

    
463
- DRBD resync algorithm and parameters (e.g. speed)
464
- the default VG for meta-data volumes for DRBD
465
- number of stripes for LVM (plain disk template)
466
- the RBD pool
467

    
468
These parameters can be modified via ``gnt-cluster modify -D …`` and
469
``gnt-group modify -D …``, and are used at either instance creation (in
470
case of LVM stripes, for example) or at disk “activation” time
471
(e.g. resync speed).
472

    
473
Rados block device support
474
++++++++++++++++++++++++++
475

    
476
A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
477
denoted by the ``rbd`` disk template type. This is considered
478
experimental, feedback is welcome. For details on configuring it, see
479
the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
480

    
481
Master IP setup
482
+++++++++++++++
483

    
484
The existing master IP functionality works well only in simple setups (a
485
single network shared by all nodes); however, if nodes belong to
486
different networks, then the ``/32`` setup and lack of routing
487
information is not enough.
488

    
489
To allow the master IP to function well in more complex cases, the
490
system was reworked as follows:
491

    
492
- a master IP netmask setting has been added
493
- the master IP activation/turn-down code was moved from the node daemon
494
  to a separate script
495
- whether to run the Ganeti-supplied master IP script or a user-supplied
496
  on is a ``gnt-cluster init`` setting
497

    
498
Details about the location of the standard and custom setup scripts are
499
in the man page :manpage:`gnt-cluster(8)`; for information about the
500
setup script protocol, look at the Ganeti-supplied script.
501

    
502
SPICE support
503
+++++++++++++
504

    
505
The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
506
improved.
507

    
508
It is now possible to use TLS-protected connections, and when renewing
509
or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
510
it is now possible to specify spice or spice CA certificates. Also, it
511
is possible to configure a password for SPICE sessions via the
512
hypervisor parameter ``spice_password_file``.
513

    
514
There are also new parameters to control the compression and streaming
515
options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
516
etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
517
for the spice parameters.
518

    
519
Lastly, it is now possible to see the SPICE connection information via
520
``gnt-instance console``.
521

    
522
OVF converter
523
+++++++++++++
524

    
525
A new tool (``tools/ovfconverter``) has been added that supports
526
conversion between Ganeti and the `Open Virtualization Format
527
<http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
528
from).
529

    
530
This relies on the ``qemu-img`` tool to convert the disk formats, so the
531
actual compatibility with other virtualization solutions depends on it.
532

    
533
Confd daemon changes
534
++++++++++++++++++++
535

    
536
The configuration query daemon (``ganeti-confd``) is now optional, and
537
has been rewritten in Haskell; whether to use the daemon at all, use the
538
Python (default) or the Haskell version is selectable at configure time
539
via the ``--enable-confd`` parameter, which can take one of the
540
``haskell``, ``python`` or ``no`` values. If not used, disabling the
541
daemon will result in a smaller footprint; for larger systems, we
542
welcome feedback on the Haskell version which might become the default
543
in future versions.
544

    
545
If you want to use ``gnt-node list-drbd`` you need to have the Haskell
546
daemon running. The Python version doesn't implement the new call.
547

    
548

    
549
User interface changes
550
~~~~~~~~~~~~~~~~~~~~~~
551

    
552
We have replaced the ``--disks`` option of ``gnt-instance
553
replace-disks`` with a more flexible ``--disk`` option, which allows
554
adding and removing disks at arbitrary indices (Issue 188). Furthermore,
555
disk size and mode can be changed upon recreation (via ``gnt-instance
556
recreate-disks``, which accepts the same ``--disk`` option).
557

    
558
As many people are used to a ``show`` command, we have added that as an
559
alias to ``info`` on all ``gnt-*`` commands.
560

    
561
The ``gnt-instance grow-disk`` command has a new mode in which it can
562
accept the target size of the disk, instead of the delta; this can be
563
more safe since two runs in absolute mode will be idempotent, and
564
sometimes it's also easier to specify the desired size directly.
565

    
566
Also the handling of instances with regard to offline secondaries has
567
been improved. Instance operations should not fail because one of it's
568
secondary nodes is offline, even though it's safe to proceed.
569

    
570
A new command ``list-drbd`` has been added to the ``gnt-node`` script to
571
support debugging of DRBD issues on nodes. It provides a mapping of DRBD
572
minors to instance name.
573

    
574
API changes
575
~~~~~~~~~~~
576

    
577
RAPI coverage has improved, with (for example) new resources for
578
recreate-disks, node power-cycle, etc.
579

    
580
Compatibility
581
~~~~~~~~~~~~~
582

    
583
There is partial support for ``xl`` in the Xen hypervisor; feedback is
584
welcome.
585

    
586
Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
587
whether to still support Python 2.4 or move to Python 2.6 as minimum
588
required version.
589

    
590
Support for Fedora has been slightly improved; the provided example
591
init.d script should work better on it and the INSTALL file should
592
document the needed dependencies.
593

    
594
Internal changes
595
~~~~~~~~~~~~~~~~
596

    
597
The deprecated ``QueryLocks`` LUXI request has been removed. Use
598
``Query(what=QR_LOCK, ...)`` instead.
599

    
600
The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
601
:pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
602
:pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
603
:pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
604
future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
605

    
606
RAPI client: ``CertificateError`` now derives from
607
``GanetiApiError``. This should make it more easy to handle Ganeti
608
errors.
609

    
610
Deprecation warnings due to PyCrypto/paramiko import in
611
``tools/setup-ssh`` have been silenced, as usually they are safe; please
612
make sure to run an up-to-date paramiko version, if you use this tool.
613

    
614
The QA scripts now depend on Python 2.5 or above (the main code base
615
still works with Python 2.4).
616

    
617
The configuration file (``config.data``) is now written without
618
indentation for performance reasons; if you want to edit it, it can be
619
re-formatted via ``tools/fmtjson``.
620

    
621
A number of bugs has been fixed in the cluster merge tool.
622

    
623
``x509`` certification verification (used in import-export) has been
624
changed to allow the same clock skew as permitted by the cluster
625
verification. This will remove some rare but hard to diagnose errors in
626
import-export.
627

    
628

    
629
Version 2.6.0 rc4
630
-----------------
631

    
632
*(Released Thu, 19 Jul 2012)*
633

    
634
Very few changes from rc4 to the final release, only bugfixes:
635

    
636
- integrated fixes from release 2.5.2 (fix general boot flag for KVM
637
  instance, fix CDROM booting for KVM instances)
638
- fixed node group modification of node parameters
639
- fixed issue in LUClusterVerifyGroup with multi-group clusters
640
- fixed generation of bash completion to ensure a stable ordering
641
- fixed a few typos
642

    
643

    
644
Version 2.6.0 rc3
645
-----------------
646

    
647
*(Released Fri, 13 Jul 2012)*
648

    
649
Third release candidate for 2.6. The following changes were done from
650
rc3 to rc4:
651

    
652
- Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
653
- Fixed an inconsistency in the LUXI protocol with the provided
654
  arguments (NOT backwards compatible)
655
- Fixed a bug with node groups ipolicy where ``min`` was greater than
656
  the cluster ``std`` value
657
- Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
658
  easier instance debugging on nodes (requires ``hconfd`` to work)
659

    
660

    
661
Version 2.6.0 rc2
662
-----------------
663

    
664
*(Released Tue, 03 Jul 2012)*
665

    
666
Second release candidate for 2.6. The following changes were done from
667
rc2 to rc3:
668

    
669
- Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
670
  master candidates
671
- Fixed a RAPI regression on missing beparams/memory
672
- Fixed redistribution of files on offline nodes
673
- Added possibility to run activate-disks even though secondaries are
674
  offline. With this change it relaxes also the strictness on some other
675
  commands which use activate disks internally:
676
  * ``gnt-instance start|reboot|rename|backup|export``
677
- Made it possible to remove safely an instance if its secondaries are
678
  offline
679
- Made it possible to reinstall even though secondaries are offline
680

    
681

    
682
Version 2.6.0 rc1
683
-----------------
684

    
685
*(Released Mon, 25 Jun 2012)*
686

    
687
First release candidate for 2.6. The following changes were done from
688
rc1 to rc2:
689

    
690
- Fixed bugs with disk parameters and ``rbd`` templates as well as
691
  ``instance_os_add``
692
- Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
693
  behaviour. It supports now the modify operation
694
- ``hcheck`` implemented to analyze cluster health and possibility of
695
  improving health by rebalance
696
- ``hbal`` has been improved in dealing with split instances
697

    
698

    
699
Version 2.6.0 beta2
700
-------------------
701

    
702
*(Released Mon, 11 Jun 2012)*
703

    
704
Second beta release of 2.6. The following changes were done from beta2
705
to rc1:
706

    
707
- Fixed ``daemon-util`` with non-root user models
708
- Fixed creation of plain instances with ``--no-wait-for-sync``
709
- Fix wrong iv_names when running ``cfgupgrade``
710
- Export more information in RAPI group queries
711
- Fixed bug when changing instance network interfaces
712
- Extended burnin to do NIC changes
713
- query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
714
- Changed default for DRBD barriers
715
- Fixed DRBD error reporting for syncer rate
716
- Verify the options on disk parameters
717

    
718
And of course various fixes to documentation and improved unittests and
719
QA.
720

    
721

    
722
Version 2.6.0 beta1
723
-------------------
724

    
725
*(Released Wed, 23 May 2012)*
726

    
727
First beta release of 2.6. The following changes were done from beta1 to
728
beta2:
729

    
730
- integrated patch for distributions without ``start-stop-daemon``
731
- adapted example init.d script to work on Fedora
732
- fixed log handling in Haskell daemons
733
- adapted checks in the watcher for pycurl linked against libnss
734
- add partial support for ``xl`` instead of ``xm`` for Xen
735
- fixed a type issue in cluster verification
736
- fixed ssconf handling in the Haskell code (was breaking confd in IPv6
737
  clusters)
738

    
739
Plus integrated fixes from the 2.5 branch:
740

    
741
- fixed ``kvm-ifup`` to use ``/bin/bash``
742
- fixed parallel build failures
743
- KVM live migration when using a custom keymap
744

    
745

    
746
Version 2.5.2
747
-------------
748

    
749
*(Released Tue, 24 Jul 2012)*
750

    
751
A small bugfix release, with no new features:
752

    
753
- fixed bash-isms in kvm-ifup, for compatibility with systems which use a
754
  different default shell (e.g. Debian, Ubuntu)
755
- fixed KVM startup and live migration with a custom keymap (fixes Issue
756
  243 and Debian bug #650664)
757
- fixed compatibility with KVM versions that don't support multiple boot
758
  devices (fixes Issue 230 and Debian bug #624256)
759

    
760
Additionally, a few fixes were done to the build system (fixed parallel
761
build failures) and to the unittests (fixed race condition in test for
762
FileID functions, and the default enable/disable mode for QA test is now
763
customisable).
764

    
765

    
766
Version 2.5.1
767
-------------
768

    
769
*(Released Fri, 11 May 2012)*
770

    
771
A small bugfix release.
772

    
773
The main issues solved are on the topic of compatibility with newer LVM
774
releases:
775

    
776
- fixed parsing of ``lv_attr`` field
777
- adapted to new ``vgreduce --removemissing`` behaviour where sometimes
778
  the ``--force`` flag is needed
779

    
780
Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
781
to accept kernel 3.x too (was hardcoded to 2.6.*).
782

    
783
A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
784
of hook results and that also made display of other errors suboptimal
785
was fixed; the code behaves now like 2.4 and earlier.
786

    
787
Another change in 2.5, the cleanup of the OS scripts environment, is too
788
aggressive: it removed even the ``PATH`` variable, which requires the OS
789
scripts to *always* need to export it. Since this is a bit too strict,
790
we now export a minimal PATH, the same that we export for hooks.
791

    
792
The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
793
integrated into this release.
794

    
795
Finally, a few other miscellaneous changes were done (no new features,
796
just small improvements):
797

    
798
- Fix ``gnt-group --help`` display
799
- Fix hardcoded Xen kernel path
800
- Fix grow-disk handling of invalid units
801
- Update synopsis for ``gnt-cluster repair-disk-sizes``
802
- Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
803

    
804

    
805
Version 2.5.0
806
-------------
807

    
808
*(Released Thu, 12 Apr 2012)*
809

    
810
Incompatible/important changes and bugfixes
811
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
812

    
813
- The default of the ``/2/instances/[instance_name]/rename`` RAPI
814
  resource's ``ip_check`` parameter changed from ``True`` to ``False``
815
  to match the underlying LUXI interface.
816
- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
817
  body parameters, see :doc:`RAPI documentation <rapi>`. The server does
818
  not maintain backwards-compatibility as the underlying operation
819
  changed in an incompatible way. The RAPI client can talk to old
820
  servers, but it needs to be told so as the return value changed.
821
- When creating file-based instances via RAPI, the ``file_driver``
822
  parameter no longer defaults to ``loop`` and must be specified.
823
- The deprecated ``bridge`` NIC parameter is no longer supported. Use
824
  ``link`` instead.
825
- Support for the undocumented and deprecated RAPI instance creation
826
  request format version 0 has been dropped. Use version 1, supported
827
  since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
828
- Pyparsing 1.4.6 or above is required, see :doc:`installation
829
  documentation <install>`.
830
- The "cluster-verify" hooks are now executed per group by the
831
  ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
832
  if you just run ``gnt-cluster verify``, which generates one opcode per
833
  group.
834
- The environment as passed to the OS scripts is cleared, and thus no
835
  environment variables defined in the node daemon's environment will be
836
  inherited by the scripts.
837
- The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
838
  deprecated.
839
- :doc:`New iallocator modes <design-multi-reloc>` have been added to
840
  support operations involving multiple node groups.
841
- Offline nodes are ignored when failing over an instance.
842
- Support for KVM version 1.0, which changed the version reporting format
843
  from 3 to 2 digits.
844
- TCP/IP ports used by DRBD disks are returned to a pool upon instance
845
  removal.
846
- ``Makefile`` is now compatible with Automake 1.11.2
847
- Includes all bugfixes made in the 2.4 series
848

    
849
New features
850
~~~~~~~~~~~~
851

    
852
- The ganeti-htools project has been merged into the ganeti-core source
853
  tree and will be built as part of Ganeti (see :doc:`install-quick`).
854
- Implemented support for :doc:`shared storage <design-shared-storage>`.
855
- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
856
  GPT-style partition tables (requires `parted
857
  <http://www.gnu.org/s/parted/>`_).
858
- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
859
- Allowed adding tags on instance creation.
860
- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
861
- Allow instances to be started in a paused state, enabling the user to
862
  see the complete console output on boot using the console.
863
- Added new hypervisor flag to control default reboot behaviour
864
  (``reboot_behavior``).
865
- Added support for KVM keymaps (hypervisor parameter ``keymap``).
866
- Improved out-of-band management support:
867

    
868
  - Added ``gnt-node health`` command reporting the health status of
869
    nodes.
870
  - Added ``gnt-node power`` command to manage power status of nodes.
871
  - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
872

    
873
- Instance migration can fall back to failover if instance is not
874
  running.
875
- Filters can be used when listing nodes, instances, groups and locks;
876
  see :manpage:`ganeti(7)` manpage.
877
- Added post-execution status as variables to :doc:`hooks <hooks>`
878
  environment.
879
- Instance tags are exported/imported together with the instance.
880
- When given an explicit job ID, ``gnt-job info`` will work for archived
881
  jobs.
882
- Jobs can define dependencies on other jobs (not yet supported via
883
  RAPI or command line, but used by internal commands and usable via
884
  LUXI).
885

    
886
  - Lock monitor (``gnt-debug locks``) shows jobs waiting for
887
    dependencies.
888

    
889
- Instance failover is now available as a RAPI resource
890
  (``/2/instances/[instance_name]/failover``).
891
- ``gnt-instance info`` defaults to static information if primary node
892
  is offline.
893
- Opcodes have a new ``comment`` attribute.
894
- Added basic SPICE support to KVM hypervisor.
895
- ``tools/ganeti-listrunner`` allows passing of arguments to executable.
896

    
897
Node group improvements
898
~~~~~~~~~~~~~~~~~~~~~~~
899

    
900
- ``gnt-cluster verify`` has been modified to check groups separately,
901
  thereby improving performance.
902
- Node group support has been added to ``gnt-cluster verify-disks``,
903
  which now operates per node group.
904
- Watcher has been changed to work better with node groups.
905

    
906
  - One process and state file per node group.
907
  - Slow watcher in one group doesn't block other group's watcher.
908

    
909
- Added new command, ``gnt-group evacuate``, to move all instances in a
910
  node group to other groups.
911
- Added ``gnt-instance change-group`` to move an instance to another
912
  node group.
913
- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
914
  per-group operations.
915
- Node groups can be tagged.
916
- Some operations switch from an exclusive to a shared lock as soon as
917
  possible.
918
- Instance's primary and secondary nodes' groups are now available as
919
  query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
920
  and ``snodes.group.uuid``).
921

    
922
Misc
923
~~~~
924

    
925
- Numerous updates to documentation and manpages.
926

    
927
  - :doc:`RAPI <rapi>` documentation now has detailed parameter
928
    descriptions.
929
  - Some opcode/job results are now also documented, see :doc:`RAPI
930
    <rapi>`.
931

    
932
- A lockset's internal lock is now also visible in lock monitor.
933
- Log messages from job queue workers now contain information about the
934
  opcode they're processing.
935
- ``gnt-instance console`` no longer requires the instance lock.
936
- A short delay when waiting for job changes reduces the number of LUXI
937
  requests significantly.
938
- DRBD metadata volumes are overwritten with zeros during disk creation.
939
- Out-of-band commands no longer acquire the cluster lock in exclusive
940
  mode.
941
- ``devel/upload`` now uses correct permissions for directories.
942

    
943

    
944
Version 2.5.0 rc6
945
-----------------
946

    
947
*(Released Fri, 23 Mar 2012)*
948

    
949
This was the sixth release candidate of the 2.5 series.
950

    
951

    
952
Version 2.5.0 rc5
953
-----------------
954

    
955
*(Released Mon, 9 Jan 2012)*
956

    
957
This was the fifth release candidate of the 2.5 series.
958

    
959

    
960
Version 2.5.0 rc4
961
-----------------
962

    
963
*(Released Thu, 27 Oct 2011)*
964

    
965
This was the fourth release candidate of the 2.5 series.
966

    
967

    
968
Version 2.5.0 rc3
969
-----------------
970

    
971
*(Released Wed, 26 Oct 2011)*
972

    
973
This was the third release candidate of the 2.5 series.
974

    
975

    
976
Version 2.5.0 rc2
977
-----------------
978

    
979
*(Released Tue, 18 Oct 2011)*
980

    
981
This was the second release candidate of the 2.5 series.
982

    
983

    
984
Version 2.5.0 rc1
985
-----------------
986

    
987
*(Released Tue, 4 Oct 2011)*
988

    
989
This was the first release candidate of the 2.5 series.
990

    
991

    
992
Version 2.5.0 beta3
993
-------------------
994

    
995
*(Released Wed, 31 Aug 2011)*
996

    
997
This was the third beta release of the 2.5 series.
998

    
999

    
1000
Version 2.5.0 beta2
1001
-------------------
1002

    
1003
*(Released Mon, 22 Aug 2011)*
1004

    
1005
This was the second beta release of the 2.5 series.
1006

    
1007

    
1008
Version 2.5.0 beta1
1009
-------------------
1010

    
1011
*(Released Fri, 12 Aug 2011)*
1012

    
1013
This was the first beta release of the 2.5 series.
1014

    
1015

    
1016
Version 2.4.5
1017
-------------
1018

    
1019
*(Released Thu, 27 Oct 2011)*
1020

    
1021
- Fixed bug when parsing command line parameter values ending in
1022
  backslash
1023
- Fixed assertion error after unclean master shutdown
1024
- Disable HTTP client pool for RPC, significantly reducing memory usage
1025
  of master daemon
1026
- Fixed queue archive creation with wrong permissions
1027

    
1028

    
1029
Version 2.4.4
1030
-------------
1031

    
1032
*(Released Tue, 23 Aug 2011)*
1033

    
1034
Small bug-fixes:
1035

    
1036
- Fixed documentation for importing with ``--src-dir`` option
1037
- Fixed a bug in ``ensure-dirs`` with queue/archive permissions
1038
- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
1039

    
1040

    
1041
Version 2.4.3
1042
-------------
1043

    
1044
*(Released Fri, 5 Aug 2011)*
1045

    
1046
Many bug-fixes and a few small features:
1047

    
1048
- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
1049
  issues when you tried to add an instance with two MAC addresses in one
1050
  request
1051
- KVM: fixed per-instance stored UID value
1052
- KVM: configure bridged NICs at migration start
1053
- KVM: Fix a bug where instance will not start with never KVM versions
1054
  (>= 0.14)
1055
- Added OS search path to ``gnt-cluster info``
1056
- Fixed an issue with ``file_storage_dir`` where you were forced to
1057
  provide an absolute path, but the documentation states it is a
1058
  relative path, the documentation was right
1059
- Added a new parameter to instance stop/start called ``--no-remember``
1060
  that will make the state change to not be remembered
1061
- Implemented ``no_remember`` at RAPI level
1062
- Improved the documentation
1063
- Node evacuation: don't call IAllocator if node is already empty
1064
- Fixed bug in DRBD8 replace disks on current nodes
1065
- Fixed bug in recreate-disks for DRBD instances
1066
- Moved assertion checking locks in ``gnt-instance replace-disks``
1067
  causing it to abort with not owning the right locks for some situation
1068
- Job queue: Fixed potential race condition when cancelling queued jobs
1069
- Fixed off-by-one bug in job serial generation
1070
- ``gnt-node volumes``: Fix instance names
1071
- Fixed aliases in bash completion
1072
- Fixed a bug in reopening log files after being sent a SIGHUP
1073
- Added a flag to burnin to allow specifying VCPU count
1074
- Bugfixes to non-root Ganeti configuration
1075

    
1076

    
1077
Version 2.4.2
1078
-------------
1079

    
1080
*(Released Thu, 12 May 2011)*
1081

    
1082
Many bug-fixes and a few new small features:
1083

    
1084
- Fixed a bug related to log opening failures
1085
- Fixed a bug in instance listing with orphan instances
1086
- Fixed a bug which prevented resetting the cluster-level node parameter
1087
  ``oob_program`` to the default
1088
- Many fixes related to the ``cluster-merge`` tool
1089
- Fixed a race condition in the lock monitor, which caused failures
1090
  during (at least) creation of many instances in parallel
1091
- Improved output for gnt-job info
1092
- Removed the quiet flag on some ssh calls which prevented debugging
1093
  failures
1094
- Improved the N+1 failure messages in cluster verify by actually
1095
  showing the memory values (needed and available)
1096
- Increased lock attempt timeouts so that when executing long operations
1097
  (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
1098
  too early and thus prevent the use of the 'fair' mechanism
1099
- Changed instance query data (``gnt-instance info``) to not acquire
1100
  locks unless needed, thus allowing its use on locked instance if only
1101
  static information is asked for
1102
- Improved behaviour with filesystems that do not support rename on an
1103
  opened file
1104
- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
1105
  kept locks on all nodes during the wipe, which is unneeded
1106
- Fixed ``gnt-watcher`` handling of errors during hooks execution
1107
- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
1108
  10GiB) which caused the wipe to fail right at the end in some cases
1109
- Fixed master IP activation when doing master failover with no-voting
1110
- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
1111
  the master node itself
1112
- Fixed potential data-loss in under disk full conditions, where Ganeti
1113
  wouldn't check correctly the return code and would consider
1114
  partially-written files 'correct'
1115
- Fixed bug related to multiple VGs and DRBD disk replacing
1116
- Added new disk parameter ``metavg`` that allows placement of the meta
1117
  device for DRBD in a different volume group
1118
- Fixed error handling in the node daemon when the system libc doesn't
1119
  have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
1120
- Fixed lock release during replace-disks, which kept cluster-wide locks
1121
  when doing disk replaces with an iallocator script
1122
- Added check for missing bridges in cluster verify
1123
- Handle EPIPE errors while writing to the terminal better, so that
1124
  piping the output to e.g. ``less`` doesn't cause a backtrace
1125
- Fixed rare case where a ^C during Luxi calls could have been
1126
  interpreted as server errors, instead of simply terminating
1127
- Fixed a race condition in LUGroupAssignNodes (``gnt-group
1128
  assign-nodes``)
1129
- Added a few more parameters to the KVM hypervisor, allowing a second
1130
  CDROM, custom disk type for CDROMs and a floppy image
1131
- Removed redundant message in instance rename when the name is given
1132
  already as a FQDN
1133
- Added option to ``gnt-instance recreate-disks`` to allow creating the
1134
  disks on new nodes, allowing recreation when the original instance
1135
  nodes are completely gone
1136
- Added option when converting disk templates to DRBD to skip waiting
1137
  for the resync, in order to make the instance available sooner
1138
- Added two new variables to the OS scripts environment (containing the
1139
  instance's nodes)
1140
- Made the root_path and optional parameter for the xen-pvm hypervisor,
1141
  to allow use of ``pvgrub`` as bootloader
1142
- Changed the instance memory modifications to only check out-of-memory
1143
  conditions on memory increases, and turned the secondary node warnings
1144
  into errors (they can still be overridden via ``--force``)
1145
- Fixed the handling of a corner case when the Python installation gets
1146
  corrupted (e.g. a bad disk) while ganeti-noded is running and we try
1147
  to execute a command that doesn't exist
1148
- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
1149
  node of the instance returned failures during instance shutdown; this
1150
  adds the option ``--ignore-consistency`` to gnt-instance move
1151

    
1152
And as usual, various improvements to the error messages, documentation
1153
and man pages.
1154

    
1155

    
1156
Version 2.4.1
1157
-------------
1158

    
1159
*(Released Wed, 09 Mar 2011)*
1160

    
1161
Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
1162
the RAPI users file if run twice (even with ``--dry-run``).
1163

    
1164
The release fixes that bug (nothing else changed).
1165

    
1166

    
1167
Version 2.4.0
1168
-------------
1169

    
1170
*(Released Mon, 07 Mar 2011)*
1171

    
1172
Final 2.4.0 release. Just a few small fixes:
1173

    
1174
- Fixed RAPI node evacuate
1175
- Fixed the kvm-ifup script
1176
- Fixed internal error handling for special job cases
1177
- Updated man page to specify the escaping feature for options
1178

    
1179

    
1180
Version 2.4.0 rc3
1181
-----------------
1182

    
1183
*(Released Mon, 28 Feb 2011)*
1184

    
1185
A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1186
that this feature wiped the disks of the wrong instance, leading to loss
1187
of data.
1188

    
1189
Other changes:
1190

    
1191
- Fixed title of query field containing instance name
1192
- Expanded the glossary in the documentation
1193
- Fixed one unittest (internal issue)
1194

    
1195

    
1196
Version 2.4.0 rc2
1197
-----------------
1198

    
1199
*(Released Mon, 21 Feb 2011)*
1200

    
1201
A number of bug fixes plus just a couple functionality changes.
1202

    
1203
On the user-visible side, the ``gnt-* list`` command output has changed
1204
with respect to "special" field states. The current rc1 style of display
1205
can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1206
the default output mode special fields states are displayed as follows:
1207

    
1208
- Offline resource: ``*``
1209
- Unavailable/not applicable: ``-``
1210
- Data missing (RPC failure): ``?``
1211
- Unknown field: ``??``
1212

    
1213
Another user-visible change is the addition of ``--force-join`` to
1214
``gnt-node add``.
1215

    
1216
As for bug fixes:
1217

    
1218
- ``tools/cluster-merge`` has seen many fixes and is now enabled again
1219
- Fixed regression in RAPI/instance reinstall where all parameters were
1220
  required (instead of optional)
1221
- Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1222
- Fixed iallocator usage (offline nodes were not considered offline)
1223
- Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1224
- Fixed hypervisor and OS parameter validation with respect to
1225
  non-vm_capable nodes
1226
- Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1227
  cosmetic)
1228
- Fixed ``tools/listrunner`` with respect to agent-based usage
1229

    
1230

    
1231
Version 2.4.0 rc1
1232
-----------------
1233

    
1234
*(Released Fri,  4 Feb 2011)*
1235

    
1236
Many changes and fixes since the beta1 release. While there were some
1237
internal changes, the code has been mostly stabilised for the RC
1238
release.
1239

    
1240
Note: the dumb allocator was removed in this release, as it was not kept
1241
up-to-date with the IAllocator protocol changes. It is recommended to
1242
use the ``hail`` command from the ganeti-htools package.
1243

    
1244
Note: the 2.4 and up versions of Ganeti are not compatible with the
1245
0.2.x branch of ganeti-htools. You need to upgrade to
1246
ganeti-htools-0.3.0 (or later).
1247

    
1248
Regressions fixed from 2.3
1249
~~~~~~~~~~~~~~~~~~~~~~~~~~
1250

    
1251
- Fixed the ``gnt-cluster verify-disks`` command
1252
- Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1253
  serially on nodes)
1254
- Fixed disk adoption breakage
1255
- Fixed wrong headers in instance listing for field aliases
1256

    
1257
Other bugs fixed
1258
~~~~~~~~~~~~~~~~
1259

    
1260
- Fixed corner case in KVM handling of NICs
1261
- Fixed many cases of wrong handling of non-vm_capable nodes
1262
- Fixed a bug where a missing instance symlink was not possible to
1263
  recreate with any ``gnt-*`` command (now ``gnt-instance
1264
  activate-disks`` does it)
1265
- Fixed the volume group name as reported by ``gnt-cluster
1266
  verify-disks``
1267
- Increased timeouts for the import-export code, hopefully leading to
1268
  fewer aborts due network or instance timeouts
1269
- Fixed bug in ``gnt-node list-storage``
1270
- Fixed bug where not all daemons were started on cluster
1271
  initialisation, but only at the first watcher run
1272
- Fixed many bugs in the OOB implementation
1273
- Fixed watcher behaviour in presence of instances with offline
1274
  secondaries
1275
- Fixed instance list output for instances running on the wrong node
1276
- a few fixes to the cluster-merge tool, but it still cannot merge
1277
  multi-node groups (currently it is not recommended to use this tool)
1278

    
1279

    
1280
Improvements
1281
~~~~~~~~~~~~
1282

    
1283
- Improved network configuration for the KVM hypervisor
1284
- Added e1000 as a supported NIC for Xen-HVM
1285
- Improved the lvmstrap tool to also be able to use partitions, as
1286
  opposed to full disks
1287
- Improved speed of disk wiping (the cluster parameter
1288
  ``prealloc_wipe_disks``, so that it has a low impact on the total time
1289
  of instance creations
1290
- Added documentation for the OS parameters
1291
- Changed ``gnt-instance deactivate-disks`` so that it can work if the
1292
  hypervisor is not responding
1293
- Added display of blacklisted and hidden OS information in
1294
  ``gnt-cluster info``
1295
- Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1296
  NIC and node parameters, which might create problems with currently
1297
  invalid (but undetected) configuration files, but prevents validation
1298
  failures when unrelated parameters are modified
1299
- Changed cluster initialisation to wait for the master daemon to become
1300
  available
1301
- Expanded the RAPI interface:
1302

    
1303
  - Added config redistribution resource
1304
  - Added activation/deactivation of instance disks
1305
  - Added export of console information
1306

    
1307
- Implemented log file reopening on SIGHUP, which allows using
1308
  logrotate(8) for the Ganeti log files
1309
- Added a basic OOB helper script as an example
1310

    
1311

    
1312
Version 2.4.0 beta1
1313
-------------------
1314

    
1315
*(Released Fri, 14 Jan 2011)*
1316

    
1317
User-visible
1318
~~~~~~~~~~~~
1319

    
1320
- Fixed timezone issues when formatting timestamps
1321
- Added support for node groups, available via ``gnt-group`` and other
1322
  commands
1323
- Added out-of-band framework and management, see :doc:`design
1324
  document <design-oob>`
1325
- Removed support for roman numbers from ``gnt-node list`` and
1326
  ``gnt-instance list``.
1327
- Allowed modification of master network interface via ``gnt-cluster
1328
  modify --master-netdev``
1329
- Accept offline secondaries while shutting down instance disks
1330
- Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1331
- Added support for multiple LVM volume groups
1332
- Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1333
  requested
1334
- Added commands to list available fields:
1335

    
1336
  - ``gnt-node list-fields``
1337
  - ``gnt-group list-fields``
1338
  - ``gnt-instance list-fields``
1339

    
1340
- Updated documentation and man pages
1341

    
1342
Integration
1343
~~~~~~~~~~~
1344

    
1345
- Moved ``rapi_users`` file into separate directory, now named
1346
  ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1347
  symlink
1348
- Added new tool for running commands on many machines,
1349
  ``tools/ganeti-listrunner``
1350
- Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1351
  improving the ``gnt-instance console`` output
1352
- Allowed customisation of disk index separator at ``configure`` time
1353
- Export node group allocation policy to :doc:`iallocator <iallocator>`
1354
- Added support for non-partitioned md disks in ``lvmstrap``
1355
- Added script to gracefully power off KVM instances
1356
- Split ``utils`` module into smaller parts
1357
- Changed query operations to return more detailed information, e.g.
1358
  whether an information is unavailable due to an offline node. To use
1359
  this new functionality, the LUXI call ``Query`` must be used. Field
1360
  information is now stored by the master daemon and can be retrieved
1361
  using ``QueryFields``. Instances, nodes and groups can also be queried
1362
  using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1363
  exposed via RAPI). The following commands make use of this
1364
  infrastructure change:
1365

    
1366
  - ``gnt-group list``
1367
  - ``gnt-group list-fields``
1368
  - ``gnt-node list``
1369
  - ``gnt-node list-fields``
1370
  - ``gnt-instance list``
1371
  - ``gnt-instance list-fields``
1372
  - ``gnt-debug locks``
1373

    
1374
Remote API
1375
~~~~~~~~~~
1376

    
1377
- New RAPI resources (see :doc:`rapi`):
1378

    
1379
  - ``/2/modify``
1380
  - ``/2/groups``
1381
  - ``/2/groups/[group_name]``
1382
  - ``/2/groups/[group_name]/assign-nodes``
1383
  - ``/2/groups/[group_name]/modify``
1384
  - ``/2/groups/[group_name]/rename``
1385
  - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1386

    
1387
- RAPI changes:
1388

    
1389
  - Implemented ``no_install`` for instance creation
1390
  - Implemented OS parameters for instance reinstallation, allowing
1391
    use of special settings on reinstallation (e.g. for preserving data)
1392

    
1393
Misc
1394
~~~~
1395

    
1396
- Added IPv6 support in import/export
1397
- Pause DRBD synchronization while wiping disks on instance creation
1398
- Updated unittests and QA scripts
1399
- Improved network parameters passed to KVM
1400
- Converted man pages from docbook to reStructuredText
1401

    
1402

    
1403
Version 2.3.1
1404
-------------
1405

    
1406
*(Released Mon, 20 Dec 2010)*
1407

    
1408
Released version 2.3.1~rc1 without any changes.
1409

    
1410

    
1411
Version 2.3.1 rc1
1412
-----------------
1413

    
1414
*(Released Wed, 1 Dec 2010)*
1415

    
1416
- impexpd: Disable OpenSSL compression in socat if possible (backport
1417
  from master, commit e90739d625b, see :doc:`installation guide
1418
  <install-quick>` for details)
1419
- Changed unittest coverage report to exclude test scripts
1420
- Added script to check version format
1421

    
1422

    
1423
Version 2.3.0
1424
-------------
1425

    
1426
*(Released Wed, 1 Dec 2010)*
1427

    
1428
Released version 2.3.0~rc1 without any changes.
1429

    
1430

    
1431
Version 2.3.0 rc1
1432
-----------------
1433

    
1434
*(Released Fri, 19 Nov 2010)*
1435

    
1436
A number of bugfixes and documentation updates:
1437

    
1438
- Update ganeti-os-interface documentation
1439
- Fixed a bug related to duplicate MACs or similar items which should be
1440
  unique
1441
- Fix breakage in OS state modify
1442
- Reinstall instance: disallow offline secondaries (fixes bug related to
1443
  OS changing but reinstall failing)
1444
- plus all the other fixes between 2.2.1 and 2.2.2
1445

    
1446

    
1447
Version 2.3.0 rc0
1448
-----------------
1449

    
1450
*(Released Tue, 2 Nov 2010)*
1451

    
1452
- Fixed clearing of the default iallocator using ``gnt-cluster modify``
1453
- Fixed master failover race with watcher
1454
- Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1455
  configuration
1456
- Accept previously stopped instance for export with instance removal
1457
- Simplify and extend the environment variables for instance OS scripts
1458
- Added new node flags, ``master_capable`` and ``vm_capable``
1459
- Added optional instance disk wiping prior during allocation. This is a
1460
  cluster-wide option and can be set/modified using
1461
  ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1462
- Added IPv6 support, see :doc:`design document <design-2.3>` and
1463
  :doc:`install-quick`
1464
- Added a new watcher option (``--ignore-pause``)
1465
- Added option to ignore offline node on instance start/stop
1466
  (``--ignore-offline``)
1467
- Allow overriding OS parameters with ``gnt-instance reinstall``
1468
- Added ability to change node's secondary IP address using ``gnt-node
1469
  modify``
1470
- Implemented privilege separation for all daemons except
1471
  ``ganeti-noded``, see ``configure`` options
1472
- Complain if an instance's disk is marked faulty in ``gnt-cluster
1473
  verify``
1474
- Implemented job priorities (see ``ganeti(7)`` manpage)
1475
- Ignore failures while shutting down instances during failover from
1476
  offline node
1477
- Exit daemon's bootstrap process only once daemon is ready
1478
- Export more information via ``LUInstanceQuery``/remote API
1479
- Improved documentation, QA and unittests
1480
- RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1481
  restart if the file was created or changed
1482
- Added LUXI protocol version sent with each request and response,
1483
  allowing detection of server/client mismatches
1484
- Moved the Python scripts among gnt-* and ganeti-* into modules
1485
- Moved all code related to setting up SSH to an external script,
1486
  ``setup-ssh``
1487
- Infrastructure changes for node group support in future versions
1488

    
1489

    
1490
Version 2.2.2
1491
-------------
1492

    
1493
*(Released Fri, 19 Nov 2010)*
1494

    
1495
A few small bugs fixed, and some improvements to the build system:
1496

    
1497
- Fix documentation regarding conversion to drbd
1498
- Fix validation of parameters in cluster modify (``gnt-cluster modify
1499
  -B``)
1500
- Fix error handling in node modify with multiple changes
1501
- Allow remote imports without checked names
1502

    
1503

    
1504
Version 2.2.1
1505
-------------
1506

    
1507
*(Released Tue, 19 Oct 2010)*
1508

    
1509
- Disable SSL session ID cache in RPC client
1510

    
1511

    
1512
Version 2.2.1 rc1
1513
-----------------
1514

    
1515
*(Released Thu, 14 Oct 2010)*
1516

    
1517
- Fix interaction between Curl/GnuTLS and the Python's HTTP server
1518
  (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1519
  with GnuTLS
1520
- Fix problems with interaction between Curl and Python's HTTP server,
1521
  resulting in increased speed in many RPC calls
1522
- Improve our release script to prevent breakage with older aclocal and
1523
  Python 2.6
1524

    
1525

    
1526
Version 2.2.1 rc0
1527
-----------------
1528

    
1529
*(Released Thu, 7 Oct 2010)*
1530

    
1531
- Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1532
  value retrieved from master
1533
- Added support for blacklisted or hidden OS definitions
1534
- Added simple lock monitor (accessible via (``gnt-debug locks``)
1535
- Added support for -mem-path in KVM hypervisor abstraction layer
1536
- Allow overriding instance parameters in tool for inter-cluster
1537
  instance moves (``tools/move-instance``)
1538
- Improved opcode summaries (e.g. in ``gnt-job list``)
1539
- Improve consistency of OS listing by sorting it
1540
- Documentation updates
1541

    
1542

    
1543
Version 2.2.0.1
1544
---------------
1545

    
1546
*(Released Fri, 8 Oct 2010)*
1547

    
1548
- Rebuild with a newer autotools version, to fix python 2.6 compatibility
1549

    
1550

    
1551
Version 2.2.0
1552
-------------
1553

    
1554
*(Released Mon, 4 Oct 2010)*
1555

    
1556
- Fixed regression in ``gnt-instance rename``
1557

    
1558

    
1559
Version 2.2.0 rc2
1560
-----------------
1561

    
1562
*(Released Wed, 22 Sep 2010)*
1563

    
1564
- Fixed OS_VARIANT variable for OS scripts
1565
- Fixed cluster tag operations via RAPI
1566
- Made ``setup-ssh`` exit with non-zero code if an error occurred
1567
- Disabled RAPI CA checks in watcher
1568

    
1569

    
1570
Version 2.2.0 rc1
1571
-----------------
1572

    
1573
*(Released Mon, 23 Aug 2010)*
1574

    
1575
- Support DRBD versions of the format "a.b.c.d"
1576
- Updated manpages
1577
- Re-introduce support for usage from multiple threads in RAPI client
1578
- Instance renames and modify via RAPI
1579
- Work around race condition between processing and archival in job
1580
  queue
1581
- Mark opcodes following failed one as failed, too
1582
- Job field ``lock_status`` was removed due to difficulties making it
1583
  work with the changed job queue in Ganeti 2.2; a better way to monitor
1584
  locks is expected for a later 2.2.x release
1585
- Fixed dry-run behaviour with many commands
1586
- Support ``ssh-agent`` again when adding nodes
1587
- Many additional bugfixes
1588

    
1589

    
1590
Version 2.2.0 rc0
1591
-----------------
1592

    
1593
*(Released Fri, 30 Jul 2010)*
1594

    
1595
Important change: the internal RPC mechanism between Ganeti nodes has
1596
changed from using a home-grown http library (based on the Python base
1597
libraries) to use the PycURL library. This requires that PycURL is
1598
installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
1599
against GnuTLS by default. cURL's support for GnuTLS had known issues
1600
before cURL 7.21.0 and we recommend using the latest cURL release or
1601
linking against OpenSSL. Most other distributions already link PycURL
1602
and cURL against OpenSSL. The command::
1603

    
1604
  python -c 'import pycurl; print pycurl.version'
1605

    
1606
can be used to determine the libraries PycURL and cURL are linked
1607
against.
1608

    
1609
Other significant changes:
1610

    
1611
- Rewrote much of the internals of the job queue, in order to achieve
1612
  better parallelism; this decouples job query operations from the job
1613
  processing, and it should allow much nicer behaviour of the master
1614
  daemon under load, and it also has uncovered some long-standing bugs
1615
  related to the job serialisation (now fixed)
1616
- Added a default iallocator setting to the cluster parameters,
1617
  eliminating the need to always pass nodes or an iallocator for
1618
  operations that require selection of new node(s)
1619
- Added experimental support for the LXC virtualization method
1620
- Added support for OS parameters, which allows the installation of
1621
  instances to pass parameter to OS scripts in order to customise the
1622
  instance
1623
- Added a hypervisor parameter controlling the migration type (live or
1624
  non-live), since hypervisors have various levels of reliability; this
1625
  has renamed the 'live' parameter to 'mode'
1626
- Added a cluster parameter ``reserved_lvs`` that denotes reserved
1627
  logical volumes, meaning that cluster verify will ignore them and not
1628
  flag their presence as errors
1629
- The watcher will now reset the error count for failed instances after
1630
  8 hours, thus allowing self-healing if the problem that caused the
1631
  instances to be down/fail to start has cleared in the meantime
1632
- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
1633
  check for, and warn, if the drbd module parameter ``usermode_helper``
1634
  is not consistent with the cluster-wide setting; this is needed to
1635
  make diagnose easier of failed drbd creations
1636
- Started adding base IPv6 support, but this is not yet
1637
  enabled/available for use
1638
- Rename operations (cluster, instance) will now return the new name,
1639
  which is especially useful if a short name was passed in
1640
- Added support for instance migration in RAPI
1641
- Added a tool to pre-configure nodes for the SSH setup, before joining
1642
  them to the cluster; this will allow in the future a simplified model
1643
  for node joining (but not yet fully enabled in 2.2); this needs the
1644
  paramiko python library
1645
- Fixed handling of name-resolving errors
1646
- Fixed consistency of job results on the error path
1647
- Fixed master-failover race condition when executed multiple times in
1648
  sequence
1649
- Fixed many bugs related to the job queue (mostly introduced during the
1650
  2.2 development cycle, so not all are impacting 2.1)
1651
- Fixed instance migration with missing disk symlinks
1652
- Fixed handling of unknown jobs in ``gnt-job archive``
1653
- And many other small fixes/improvements
1654

    
1655
Internal changes:
1656

    
1657
- Enhanced both the unittest and the QA coverage
1658
- Switched the opcode validation to a generic model, and extended the
1659
  validation to all opcode parameters
1660
- Changed more parts of the code that write shell scripts to use the
1661
  same class for this
1662
- Switched the master daemon to use the asyncore library for the Luxi
1663
  server endpoint
1664

    
1665

    
1666
Version 2.2.0 beta0
1667
-------------------
1668

    
1669
*(Released Thu, 17 Jun 2010)*
1670

    
1671
- Added tool (``move-instance``) and infrastructure to move instances
1672
  between separate clusters (see :doc:`separate documentation
1673
  <move-instance>` and :doc:`design document <design-2.2>`)
1674
- Added per-request RPC timeout
1675
- RAPI now requires a Content-Type header for requests with a body (e.g.
1676
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
1677
  :rfc:`2616` (HTTP/1.1), section 7.2.1)
1678
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
1679
  reachable
1680
- Implemented initial support for running Ganeti daemons as separate
1681
  users, see configure-time flags ``--with-user-prefix`` and
1682
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
1683
  time)
1684
- Instances can be removed after export (``gnt-backup export
1685
  --remove-instance``)
1686
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
1687
  key (instead of 1024 bit)
1688
- Added new cluster configuration file for cluster domain secret
1689
- Import/export now use SSL instead of SSH
1690
- Added support for showing estimated time when exporting an instance,
1691
  see the ``ganeti-os-interface(7)`` manpage and look for
1692
  ``EXP_SIZE_FD``
1693

    
1694

    
1695
Version 2.1.8
1696
-------------
1697

    
1698
*(Released Tue, 16 Nov 2010)*
1699

    
1700
Some more bugfixes. Unless critical bugs occur, this will be the last
1701
2.1 release:
1702

    
1703
- Fix case of MAC special-values
1704
- Fix mac checker regex
1705
- backend: Fix typo causing "out of range" error
1706
- Add missing --units in gnt-instance list man page
1707

    
1708

    
1709
Version 2.1.7
1710
-------------
1711

    
1712
*(Released Tue, 24 Aug 2010)*
1713

    
1714
Bugfixes only:
1715
  - Don't ignore secondary node silently on non-mirrored disk templates
1716
    (issue 113)
1717
  - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
1718
  - Fix usb_mouse parameter breaking with vnc_console (issue 109)
1719
  - Properly document the usb_mouse parameter
1720
  - Fix path in ganeti-rapi(8) (issue 116)
1721
  - Adjust error message when the ganeti user's .ssh directory is
1722
    missing
1723
  - Add same-node-check when changing the disk template to drbd
1724

    
1725

    
1726
Version 2.1.6
1727
-------------
1728

    
1729
*(Released Fri, 16 Jul 2010)*
1730

    
1731
Bugfixes only:
1732
  - Add an option to only select some reboot types during qa/burnin.
1733
    (on some hypervisors consequent reboots are not supported)
1734
  - Fix infrequent race condition in master failover. Sometimes the old
1735
    master ip address would be still detected as up for a short time
1736
    after it was removed, causing failover to fail.
1737
  - Decrease mlockall warnings when the ctypes module is missing. On
1738
    Python 2.4 we support running even if no ctypes module is installed,
1739
    but we were too verbose about this issue.
1740
  - Fix building on old distributions, on which man doesn't have a
1741
    --warnings option.
1742
  - Fix RAPI not to ignore the MAC address on instance creation
1743
  - Implement the old instance creation format in the RAPI client.
1744

    
1745

    
1746
Version 2.1.5
1747
-------------
1748

    
1749
*(Released Thu, 01 Jul 2010)*
1750

    
1751
A small bugfix release:
1752
  - Fix disk adoption: broken by strict --disk option checking in 2.1.4
1753
  - Fix batch-create: broken in the whole 2.1 series due to a lookup on
1754
    a non-existing option
1755
  - Fix instance create: the --force-variant option was ignored
1756
  - Improve pylint 0.21 compatibility and warnings with Python 2.6
1757
  - Fix modify node storage with non-FQDN arguments
1758
  - Fix RAPI client to authenticate under Python 2.6 when used
1759
    for more than 5 requests needing authentication
1760
  - Fix gnt-instance modify -t (storage) giving a wrong error message
1761
    when converting a non-shutdown drbd instance to plain
1762

    
1763

    
1764
Version 2.1.4
1765
-------------
1766

    
1767
*(Released Fri, 18 Jun 2010)*
1768

    
1769
A small bugfix release:
1770

    
1771
  - Fix live migration of KVM instances started with older Ganeti
1772
    versions which had fewer hypervisor parameters
1773
  - Fix gnt-instance grow-disk on down instances
1774
  - Fix an error-reporting bug during instance migration
1775
  - Better checking of the ``--net`` and ``--disk`` values, to avoid
1776
    silently ignoring broken ones
1777
  - Fix an RPC error reporting bug affecting, for example, RAPI client
1778
    users
1779
  - Fix bug triggered by different API version os-es on different nodes
1780
  - Fix a bug in instance startup with custom hvparams: OS level
1781
    parameters would fail to be applied.
1782
  - Fix the RAPI client under Python 2.6 (but more work is needed to
1783
    make it work completely well with OpenSSL)
1784
  - Fix handling of errors when resolving names from DNS
1785

    
1786

    
1787
Version 2.1.3
1788
-------------
1789

    
1790
*(Released Thu, 3 Jun 2010)*
1791

    
1792
A medium sized development cycle. Some new features, and some
1793
fixes/small improvements/cleanups.
1794

    
1795
Significant features
1796
~~~~~~~~~~~~~~~~~~~~
1797

    
1798
The node deamon now tries to mlock itself into memory, unless the
1799
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1800
its logs, and falls back to console logging. This allows emergency
1801
features such as ``gnt-node powercycle`` to work even in the event of a
1802
broken node disk (tested offlining the disk hosting the node's
1803
filesystem and dropping its memory caches; don't try this at home)
1804

    
1805
KVM: add vhost-net acceleration support. It can be tested with a new
1806
enough version of the kernel and of qemu-kvm.
1807

    
1808
KVM: Add instance chrooting feature. If you use privilege dropping for
1809
your VMs you can also now force them to chroot to an empty directory,
1810
before starting the emulated guest.
1811

    
1812
KVM: Add maximum migration bandwith and maximum downtime tweaking
1813
support (requires a new-enough version of qemu-kvm).
1814

    
1815
Cluster verify will now warn if the master node doesn't have the master
1816
ip configured on it.
1817

    
1818
Add a new (incompatible) instance creation request format to RAPI which
1819
supports all parameters (previously only a subset was supported, and it
1820
wasn't possible to extend the old format to accomodate all the new
1821
features. The old format is still supported, and a client can check for
1822
this feature, before using it, by checking for its presence in the
1823
``features`` RAPI resource.
1824

    
1825
Now with ancient latin support. Try it passing the ``--roman`` option to
1826
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1827
(requires the python-roman module to be installed, in order to work).
1828

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

    
1832
As usual many internal code refactorings, documentation updates, and
1833
such. Among others:
1834

    
1835
  - Lots of improvements and cleanups to the experimental Remote API
1836
    (RAPI) client library.
1837
  - A new unit test suite for the core daemon libraries.
1838
  - A fix to creating missing directories makes sure the umask is not
1839
    applied anymore. This enforces the same directory permissions
1840
    everywhere.
1841
  - Better handling terminating daemons with ctrl+c (used when running
1842
    them in debugging mode).
1843
  - Fix a race condition in live migrating a KVM instance, when stat()
1844
    on the old proc status file returned EINVAL, which is an unexpected
1845
    value.
1846
  - Fixed manpage checking with newer man and utf-8 charachters. But now
1847
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1848

    
1849

    
1850
Version 2.1.2.1
1851
---------------
1852

    
1853
*(Released Fri, 7 May 2010)*
1854

    
1855
Fix a bug which prevented untagged KVM instances from starting.
1856

    
1857

    
1858
Version 2.1.2
1859
-------------
1860

    
1861
*(Released Fri, 7 May 2010)*
1862

    
1863
Another release with a long development cycle, during which many
1864
different features were added.
1865

    
1866
Significant features
1867
~~~~~~~~~~~~~~~~~~~~
1868

    
1869
The KVM hypervisor now can run the individual instances as non-root, to
1870
reduce the impact of a VM being hijacked due to bugs in the
1871
hypervisor. It is possible to run all instances as a single (non-root)
1872
user, to manually specify a user for each instance, or to dynamically
1873
allocate a user out of a cluster-wide pool to each instance, with the
1874
guarantee that no two instances will run under the same user ID on any
1875
given node.
1876

    
1877
An experimental RAPI client library, that can be used standalone
1878
(without the other Ganeti libraries), is provided in the source tree as
1879
``lib/rapi/client.py``. Note this client might change its interface in
1880
the future, as we iterate on its capabilities.
1881

    
1882
A new command, ``gnt-cluster renew-crypto`` has been added to easily
1883
replace the cluster's certificates and crypto keys. This might help in
1884
case they have been compromised, or have simply expired.
1885

    
1886
A new disk option for instance creation has been added that allows one
1887
to "adopt" currently existing logical volumes, with data
1888
preservation. This should allow easier migration to Ganeti from
1889
unmanaged (or managed via other software) instances.
1890

    
1891
Another disk improvement is the possibility to convert between redundant
1892
(DRBD) and plain (LVM) disk configuration for an instance. This should
1893
allow better scalability (starting with one node and growing the
1894
cluster, or shrinking a two-node cluster to one node).
1895

    
1896
A new feature that could help with automated node failovers has been
1897
implemented: if a node sees itself as offline (by querying the master
1898
candidates), it will try to shutdown (hard) all instances and any active
1899
DRBD devices. This reduces the risk of duplicate instances if an
1900
external script automatically failovers the instances on such nodes. To
1901
enable this, the cluster parameter ``maintain_node_health`` should be
1902
enabled; in the future this option (per the name) will enable other
1903
automatic maintenance features.
1904

    
1905
Instance export/import now will reuse the original instance
1906
specifications for all parameters; that means exporting an instance,
1907
deleting it and the importing it back should give an almost identical
1908
instance. Note that the default import behaviour has changed from
1909
before, where it created only one NIC; now it recreates the original
1910
number of NICs.
1911

    
1912
Cluster verify has added a few new checks: SSL certificates validity,
1913
/etc/hosts consistency across the cluster, etc.
1914

    
1915
Other changes
1916
~~~~~~~~~~~~~
1917

    
1918
As usual, many internal changes were done, documentation fixes,
1919
etc. Among others:
1920

    
1921
- Fixed cluster initialization with disabled cluster storage (regression
1922
  introduced in 2.1.1)
1923
- File-based storage supports growing the disks
1924
- Fixed behaviour of node role changes
1925
- Fixed cluster verify for some corner cases, plus a general rewrite of
1926
  cluster verify to allow future extension with more checks
1927
- Fixed log spamming by watcher and node daemon (regression introduced
1928
  in 2.1.1)
1929
- Fixed possible validation issues when changing the list of enabled
1930
  hypervisors
1931
- Fixed cleanup of /etc/hosts during node removal
1932
- Fixed RAPI response for invalid methods
1933
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1934
- Multiple small improvements to the KVM hypervisor (VNC usage, booting
1935
  from ide disks, etc.)
1936
- Allow OS changes without re-installation (to record a changed OS
1937
  outside of Ganeti, or to allow OS renames)
1938
- Allow instance creation without OS installation (useful for example if
1939
  the OS will be installed manually, or restored from a backup not in
1940
  Ganeti format)
1941
- Implemented option to make cluster ``copyfile`` use the replication
1942
  network
1943
- Added list of enabled hypervisors to ssconf (possibly useful for
1944
  external scripts)
1945
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1946
  1.2 clusters
1947
- A partial form of node re-IP is possible via node readd, which now
1948
  allows changed node primary IP
1949
- Command line utilities now show an informational message if the job is
1950
  waiting for a lock
1951
- The logs of the master daemon now show the PID/UID/GID of the
1952
  connected client
1953

    
1954

    
1955
Version 2.1.1
1956
-------------
1957

    
1958
*(Released Fri, 12 Mar 2010)*
1959

    
1960
During the 2.1.0 long release candidate cycle, a lot of improvements and
1961
changes have accumulated with were released later as 2.1.1.
1962

    
1963
Major changes
1964
~~~~~~~~~~~~~
1965

    
1966
The node evacuate command (``gnt-node evacuate``) was significantly
1967
rewritten, and as such the IAllocator protocol was changed - a new
1968
request type has been added. This unfortunate change during a stable
1969
series is designed to improve performance of node evacuations; on
1970
clusters with more than about five nodes and which are well-balanced,
1971
evacuation should proceed in parallel for all instances of the node
1972
being evacuated. As such, any existing IAllocator scripts need to be
1973
updated, otherwise the above command will fail due to the unknown
1974
request. The provided "dumb" allocator has not been updated; but the
1975
ganeti-htools package supports the new protocol since version 0.2.4.
1976

    
1977
Another important change is increased validation of node and instance
1978
names. This might create problems in special cases, if invalid host
1979
names are being used.
1980

    
1981
Also, a new layer of hypervisor parameters has been added, that sits at
1982
OS level between the cluster defaults and the instance ones. This allows
1983
customisation of virtualization parameters depending on the installed
1984
OS. For example instances with OS 'X' may have a different KVM kernel
1985
(or any other parameter) than the cluster defaults. This is intended to
1986
help managing a multiple OSes on the same cluster, without manual
1987
modification of each instance's parameters.
1988

    
1989
A tool for merging clusters, ``cluster-merge``, has been added in the
1990
tools sub-directory.
1991

    
1992
Bug fixes
1993
~~~~~~~~~
1994

    
1995
- Improved the int/float conversions that should make the code more
1996
  robust in face of errors from the node daemons
1997
- Fixed the remove node code in case of internal configuration errors
1998
- Fixed the node daemon behaviour in face of inconsistent queue
1999
  directory (e.g. read-only file-system where we can't open the files
2000
  read-write, etc.)
2001
- Fixed the behaviour of gnt-node modify for master candidate demotion;
2002
  now it either aborts cleanly or, if given the new "auto_promote"
2003
  parameter, will automatically promote other nodes as needed
2004
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would
2005
  completely prevent Ganeti from working
2006
- Fixed bug for instance export when not all disks were successfully
2007
  exported
2008
- Fixed behaviour of node add when the new node is slow in starting up
2009
  the node daemon
2010
- Fixed handling of signals in the LUXI client, which should improve
2011
  behaviour of command-line scripts
2012
- Added checks for invalid node/instance names in the configuration (now
2013
  flagged during cluster verify)
2014
- Fixed watcher behaviour for disk activation errors
2015
- Fixed two potentially endless loops in http library, which led to the
2016
  RAPI daemon hanging and consuming 100% CPU in some cases
2017
- Fixed bug in RAPI daemon related to hashed passwords
2018
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM
2019
  instances
2020
- Enhanced compatibility with non-Debian OSes, but not using absolute
2021
  path in some commands and allowing customisation of the ssh
2022
  configuration directory
2023
- Fixed possible future issue with new Python versions by abiding to the
2024
  proper use of ``__slots__`` attribute on classes
2025
- Added checks that should prevent directory traversal attacks
2026
- Many documentation fixes based on feedback from users
2027

    
2028
New features
2029
~~~~~~~~~~~~
2030

    
2031
- Added an "early_release" more for instance replace disks and node
2032
  evacuate, where we release locks earlier and thus allow higher
2033
  parallelism within the cluster
2034
- Added watcher hooks, intended to allow the watcher to restart other
2035
  daemons (e.g. from the ganeti-nbma project), but they can be used of
2036
  course for any other purpose
2037
- Added a compile-time disable for DRBD barriers, to increase
2038
  performance if the administrator trusts the power supply or the
2039
  storage system to not lose writes
2040
- Added the option of using syslog for logging instead of, or in
2041
  addition to, Ganeti's own log files
2042
- Removed boot restriction for paravirtual NICs for KVM, recent versions
2043
  can indeed boot from a paravirtual NIC
2044
- Added a generic debug level for many operations; while this is not
2045
  used widely yet, it allows one to pass the debug value all the way to
2046
  the OS scripts
2047
- Enhanced the hooks environment for instance moves (failovers,
2048
  migrations) where the primary/secondary nodes changed during the
2049
  operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
2050
- Enhanced data validations for many user-supplied values; one important
2051
  item is the restrictions imposed on instance and node names, which
2052
  might reject some (invalid) host names
2053
- Add a configure-time option to disable file-based storage, if it's not
2054
  needed; this allows greater security separation between the master
2055
  node and the other nodes from the point of view of the inter-node RPC
2056
  protocol
2057
- Added user notification in interactive tools if job is waiting in the
2058
  job queue or trying to acquire locks
2059
- Added log messages when a job is waiting for locks
2060
- Added filtering by node tags in instance operations which admit
2061
  multiple instances (start, stop, reboot, reinstall)
2062
- Added a new tool for cluster mergers, ``cluster-merge``
2063
- Parameters from command line which are of the form ``a=b,c=d`` can now
2064
  use backslash escapes to pass in values which contain commas,
2065
  e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
2066
  ``b,c``
2067
- For KVM, the instance name is the first parameter passed to KVM, so
2068
  that it's more visible in the process list
2069

    
2070

    
2071
Version 2.1.0
2072
-------------
2073

    
2074
*(Released Tue, 2 Mar 2010)*
2075

    
2076
Ganeti 2.1 brings many improvements with it. Major changes:
2077

    
2078
- Added infrastructure to ease automated disk repairs
2079
- Added new daemon to export configuration data in a cheaper way than
2080
  using the remote API
2081
- Instance NICs can now be routed instead of being associated with a
2082
  networking bridge
2083
- Improved job locking logic to reduce impact of jobs acquiring multiple
2084
  locks waiting for other long-running jobs
2085

    
2086
In-depth implementation details can be found in the Ganeti 2.1 design
2087
document.
2088

    
2089
Details
2090
~~~~~~~
2091

    
2092
- Added chroot hypervisor
2093
- Added more options to xen-hvm hypervisor (``kernel_path`` and
2094
  ``device_model``)
2095
- Added more options to xen-pvm hypervisor (``use_bootloader``,
2096
  ``bootloader_path`` and ``bootloader_args``)
2097
- Added the ``use_localtime`` option for the xen-hvm and kvm
2098
  hypervisors, and the default value for this has changed to false (in
2099
  2.0 xen-hvm always enabled it)
2100
- Added luxi call to submit multiple jobs in one go
2101
- Added cluster initialization option to not modify ``/etc/hosts``
2102
  file on nodes
2103
- Added network interface parameters
2104
- Added dry run mode to some LUs
2105
- Added RAPI resources:
2106

    
2107
  - ``/2/instances/[instance_name]/info``
2108
  - ``/2/instances/[instance_name]/replace-disks``
2109
  - ``/2/nodes/[node_name]/evacuate``
2110
  - ``/2/nodes/[node_name]/migrate``
2111
  - ``/2/nodes/[node_name]/role``
2112
  - ``/2/nodes/[node_name]/storage``
2113
  - ``/2/nodes/[node_name]/storage/modify``
2114
  - ``/2/nodes/[node_name]/storage/repair``
2115

    
2116
- Added OpCodes to evacuate or migrate all instances on a node
2117
- Added new command to list storage elements on nodes (``gnt-node
2118
  list-storage``) and modify them (``gnt-node modify-storage``)
2119
- Added new ssconf files with master candidate IP address
2120
  (``ssconf_master_candidates_ips``), node primary IP address
2121
  (``ssconf_node_primary_ips``) and node secondary IP address
2122
  (``ssconf_node_secondary_ips``)
2123
- Added ``ganeti-confd`` and a client library to query the Ganeti
2124
  configuration via UDP
2125
- Added ability to run hooks after cluster initialization and before
2126
  cluster destruction
2127
- Added automatic mode for disk replace (``gnt-instance replace-disks
2128
  --auto``)
2129
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
2130
  after catastrophic data-loss
2131
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
2132
  groups
2133
- Added ``gnt-instance move`` command to move instances
2134
- Added ``gnt-cluster watcher`` command to control watcher
2135
- Added ``gnt-node powercycle`` command to powercycle nodes
2136
- Added new job status field ``lock_status``
2137
- Added parseable error codes to cluster verification (``gnt-cluster
2138
  verify --error-codes``) and made output less verbose (use
2139
  ``--verbose`` to restore previous behaviour)
2140
- Added UUIDs to the main config entities (cluster, nodes, instances)
2141
- Added support for OS variants
2142
- Added support for hashed passwords in the Ganeti remote API users file
2143
  (``rapi_users``)
2144
- Added option to specify maximum timeout on instance shutdown
2145
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
2146
- Added new helper script to start and stop Ganeti daemons
2147
  (``daemon-util``), with the intent to reduce the work necessary to
2148
  adjust Ganeti for non-Debian distributions and to start/stop daemons
2149
  from one place
2150
- Added more unittests
2151
- Fixed critical bug in ganeti-masterd startup
2152
- Removed the configure-time ``kvm-migration-port`` parameter, this is
2153
  now customisable at the cluster level for both the KVM and Xen
2154
  hypervisors using the new ``migration_port`` parameter
2155
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
2156
  reinstalling an instance
2157
- Allowed ``@`` in tag names
2158
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
2159
- Many documentation updates
2160
- Distribute hypervisor files on ``gnt-cluster redist-conf``
2161
- ``gnt-instance reinstall`` can now reinstall multiple instances
2162
- Updated many command line parameters
2163
- Introduced new OS API version 15
2164
- No longer support a default hypervisor
2165
- Treat virtual LVs as inexistent
2166
- Improved job locking logic to reduce lock contention
2167
- Match instance and node names case insensitively
2168
- Reimplemented bash completion script to be more complete
2169
- Improved burnin
2170

    
2171

    
2172
Version 2.0.6
2173
-------------
2174

    
2175
*(Released Thu, 4 Feb 2010)*
2176

    
2177
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2178
- Fix a string formatting bug
2179
- Improve safety of the code in some error paths
2180
- Improve data validation in the master of values returned from nodes
2181

    
2182

    
2183
Version 2.0.5
2184
-------------
2185

    
2186
*(Released Thu, 17 Dec 2009)*
2187

    
2188
- Fix security issue due to missing validation of iallocator names; this
2189
  allows local and remote execution of arbitrary executables
2190
- Fix failure of gnt-node list during instance removal
2191
- Ship the RAPI documentation in the archive
2192

    
2193

    
2194
Version 2.0.4
2195
-------------
2196

    
2197
*(Released Wed, 30 Sep 2009)*
2198

    
2199
- Fixed many wrong messages
2200
- Fixed a few bugs related to the locking library
2201
- Fixed MAC checking at instance creation time
2202
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
2203
- Fixed a few issues related to signal handling in both daemons and
2204
  scripts
2205
- Fixed the example startup script provided
2206
- Fixed insserv dependencies in the example startup script (patch from
2207
  Debian)
2208
- Fixed handling of drained nodes in the iallocator framework
2209
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2210
  #528618)
2211
- Fixed error related to invalid job IDs in job polling
2212
- Fixed job/opcode persistence on unclean master shutdown
2213
- Fixed handling of partial job processing after unclean master
2214
  shutdown
2215
- Fixed error reporting from LUs, previously all errors were converted
2216
  into execution errors
2217
- Fixed error reporting from burnin
2218
- Decreased significantly the memory usage of the job queue
2219
- Optimised slightly multi-job submission
2220
- Optimised slightly opcode loading
2221
- Backported the multi-job submit framework from the development
2222
  branch; multi-instance start and stop should be faster
2223
- Added script to clean archived jobs after 21 days; this will reduce
2224
  the size of the queue directory
2225
- Added some extra checks in disk size tracking
2226
- Added an example ethers hook script
2227
- Added a cluster parameter that prevents Ganeti from modifying of
2228
  /etc/hosts
2229
- Added more node information to RAPI responses
2230
- Added a ``gnt-job watch`` command that allows following the ouput of a
2231
  job
2232
- Added a bind-address option to ganeti-rapi
2233
- Added more checks to the configuration verify
2234
- Enhanced the burnin script such that some operations can be retried
2235
  automatically
2236
- Converted instance reinstall to multi-instance model
2237

    
2238

    
2239
Version 2.0.3
2240
-------------
2241

    
2242
*(Released Fri, 7 Aug 2009)*
2243

    
2244
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2245
  to allow using the pre-2.0.2 behaviour in activation, if any existing
2246
  instances have mismatched disk sizes in the configuration
2247
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
2248
  any configuration mismatches for disk sizes
2249
- Added ``gnt-master cluste-failover --no-voting`` to allow master
2250
  failover to work on two-node clusters
2251
- Fixed the ``--net`` option of ``gnt-backup import``, which was
2252
  unusable
2253
- Fixed detection of OS script errors in ``gnt-backup export``
2254
- Fixed exit code of ``gnt-backup export``
2255

    
2256

    
2257
Version 2.0.2
2258
-------------
2259

    
2260
*(Released Fri, 17 Jul 2009)*
2261

    
2262
- Added experimental support for stripped logical volumes; this should
2263
  enhance performance but comes with a higher complexity in the block
2264
  device handling; stripping is only enabled when passing
2265
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2266
  affected even in the non-stripped mode
2267
- Improved resiliency against transient failures at the end of DRBD
2268
  resyncs, and in general of DRBD resync checks
2269
- Fixed a couple of issues with exports and snapshot errors
2270
- Fixed a couple of issues in instance listing
2271
- Added display of the disk size in ``gnt-instance info``
2272
- Fixed checking for valid OSes in instance creation
2273
- Fixed handling of the "vcpus" parameter in instance listing and in
2274
  general of invalid parameters
2275
- Fixed http server library, and thus RAPI, to handle invalid
2276
  username/password combinations correctly; this means that now they
2277
  report unauthorized for queries too, not only for modifications,
2278
  allowing earlier detect of configuration problems
2279
- Added a new "role" node list field, equivalent to the master/master
2280
  candidate/drained/offline flags combinations
2281
- Fixed cluster modify and changes of candidate pool size
2282
- Fixed cluster verify error messages for wrong files on regular nodes
2283
- Fixed a couple of issues with node demotion from master candidate role
2284
- Fixed node readd issues
2285
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2286
- Added a new ``--no-voting`` option for masterfailover to fix failover
2287
  on two-nodes clusters when the former master node is unreachable
2288
- Added instance reinstall over RAPI
2289

    
2290

    
2291
Version 2.0.1
2292
-------------
2293

    
2294
*(Released Tue, 16 Jun 2009)*
2295

    
2296
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2297
  allow re-adding the start in single-user option (regression from 1.2)
2298
- the watcher writes the instance status to a file, to allow monitoring
2299
  to report the instance status (from the master) based on cached
2300
  results of the watcher's queries; while this can get stale if the
2301
  watcher is being locked due to other work on the cluster, this is
2302
  still an improvement
2303
- the watcher now also restarts the node daemon and the rapi daemon if
2304
  they died
2305
- fixed the watcher to handle full and drained queue cases
2306
- hooks export more instance data in the environment, which helps if
2307
  hook scripts need to take action based on the instance's properties
2308
  (no longer need to query back into ganeti)
2309
- instance failovers when the instance is stopped do not check for free
2310
  RAM, so that failing over a stopped instance is possible in low memory
2311
  situations
2312
- rapi uses queries for tags instead of jobs (for less job traffic), and
2313
  for cluster tags it won't talk to masterd at all but read them from
2314
  ssconf
2315
- a couple of error handling fixes in RAPI
2316
- drbd handling: improved the error handling of inconsistent disks after
2317
  resync to reduce the frequency of "there are some degraded disks for
2318
  this instance" messages
2319
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
2320
  error handling path called a wrong function name)
2321

    
2322

    
2323
Version 2.0.0
2324
-------------
2325

    
2326
*(Released Wed, 27 May 2009)*
2327

    
2328
- no changes from rc5
2329

    
2330

    
2331
Version 2.0 rc5
2332
---------------
2333

    
2334
*(Released Wed, 20 May 2009)*
2335

    
2336
- fix a couple of bugs (validation, argument checks)
2337
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2338
- some small improvements to RAPI and IAllocator
2339
- make watcher automatically start the master daemon if down
2340

    
2341

    
2342
Version 2.0 rc4
2343
---------------
2344

    
2345
*(Released Mon, 27 Apr 2009)*
2346

    
2347
- change the OS list to not require locks; this helps with big clusters
2348
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2349
  volume group is broken
2350
- ``gnt-instance info``, without any arguments, doesn't run for all
2351
  instances anymore; either pass ``--all`` or pass the desired
2352
  instances; this helps against mistakes on big clusters where listing
2353
  the information for all instances takes a long time
2354
- miscellaneous doc and man pages fixes
2355

    
2356

    
2357
Version 2.0 rc3
2358
---------------
2359

    
2360
*(Released Wed, 8 Apr 2009)*
2361

    
2362
- Change the internal locking model of some ``gnt-node`` commands, in
2363
  order to reduce contention (and blocking of master daemon) when
2364
  batching many creation/reinstall jobs
2365
- Fixes to Xen soft reboot
2366
- No longer build documentation at build time, instead distribute it in
2367
  the archive, in order to reduce the need for the whole docbook/rst
2368
  toolchains
2369

    
2370

    
2371
Version 2.0 rc2
2372
---------------
2373

    
2374
*(Released Fri, 27 Mar 2009)*
2375

    
2376
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2377
- Fix watcher startup sequence, improves the behaviour of busy clusters
2378
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2379
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2380
  bind address and other places
2381
- Some documentation fixes and updates
2382

    
2383

    
2384
Version 2.0 rc1
2385
---------------
2386

    
2387
*(Released Mon, 2 Mar 2009)*
2388

    
2389
- More documentation updates, now all docs should be more-or-less
2390
  up-to-date
2391
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
2392
  etc.)
2393
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2394
  and KVM)
2395
- Fix an issue related to $libdir/run/ganeti and cluster creation
2396

    
2397

    
2398
Version 2.0 beta2
2399
-----------------
2400

    
2401
*(Released Thu, 19 Feb 2009)*
2402

    
2403
- Xen PVM and KVM have switched the default value for the instance root
2404
  disk to the first partition on the first drive, instead of the whole
2405
  drive; this means that the OS installation scripts must be changed
2406
  accordingly
2407
- Man pages have been updated
2408
- RAPI has been switched by default to HTTPS, and the exported functions
2409
  should all work correctly
2410
- RAPI v1 has been removed
2411
- Many improvements to the KVM hypervisor
2412
- Block device errors are now better reported
2413
- Many other bugfixes and small improvements
2414

    
2415

    
2416
Version 2.0 beta1
2417
-----------------
2418

    
2419
*(Released Mon, 26 Jan 2009)*
2420

    
2421
- Version 2 is a general rewrite of the code and therefore the
2422
  differences are too many to list, see the design document for 2.0 in
2423
  the ``doc/`` subdirectory for more details
2424
- In this beta version there is not yet a migration path from 1.2 (there
2425
  will be one in the final 2.0 release)
2426
- A few significant changes are:
2427

    
2428
  - all commands are executed by a daemon (``ganeti-masterd``) and the
2429
    various ``gnt-*`` commands are just front-ends to it
2430
  - all the commands are entered into, and executed from a job queue,
2431
    see the ``gnt-job(8)`` manpage
2432
  - the RAPI daemon supports read-write operations, secured by basic
2433
    HTTP authentication on top of HTTPS
2434
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
2435
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
2436
    to migrate to DRBD 8 first while still running Ganeti 1.2)
2437
  - DRBD devices are using statically allocated minor numbers, which
2438
    will be assigned to existing instances during the migration process
2439
  - there is support for both Xen PVM and Xen HVM instances running on
2440
    the same cluster
2441
  - KVM virtualization is supported too
2442
  - file-based storage has been implemented, which means that it is
2443
    possible to run the cluster without LVM and DRBD storage, for
2444
    example using a shared filesystem exported from shared storage (and
2445
    still have live migration)
2446

    
2447

    
2448
Version 1.2.7
2449
-------------
2450

    
2451
*(Released Tue, 13 Jan 2009)*
2452

    
2453
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
2454
- Reuse the old instance mac address by default on instance import, if
2455
  the instance name is the same.
2456
- Handle situations in which the node info rpc returns incomplete
2457
  results (issue 46)
2458
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2459
- Improved version of batcher:
2460

    
2461
  - state file support
2462
  - instance mac address support
2463
  - support for HVM clusters/instances
2464

    
2465
- Add an option to show the number of cpu sockets and nodes in
2466
  ``gnt-node list``
2467
- Support OSes that handle more than one version of the OS api (but do
2468
  not change the current API in any other way)
2469
- Fix ``gnt-node migrate``
2470
- ``gnt-debug`` man page
2471
- Fixes various more typos and small issues
2472
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2473

    
2474

    
2475
Version 1.2.6
2476
-------------
2477

    
2478
*(Released Wed, 24 Sep 2008)*
2479

    
2480
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2481
  type of disk exported to fully virtualized instances.
2482
- provide access to the serial console of HVM instances
2483
- instance auto_balance flag, set by default. If turned off it will
2484
  avoid warnings on cluster verify if there is not enough memory to fail
2485
  over an instance. in the future it will prevent automatically failing
2486
  it over when we will support that.
2487
- batcher tool for instance creation, see ``tools/README.batcher``
2488
- ``gnt-instance reinstall --select-os`` to interactively select a new
2489
  operating system when reinstalling an instance.
2490
- when changing the memory amount on instance modify a check has been
2491
  added that the instance will be able to start. also warnings are
2492
  emitted if the instance will not be able to fail over, if auto_balance
2493
  is true.
2494
- documentation fixes
2495
- sync fields between ``gnt-instance list/modify/add/import``
2496
- fix a race condition in drbd when the sync speed was set after giving
2497
  the device a remote peer.
2498

    
2499

    
2500
Version 1.2.5
2501
-------------
2502

    
2503
*(Released Tue, 22 Jul 2008)*
2504

    
2505
- note: the allowed size and number of tags per object were reduced
2506
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2507
- fixed twisted 8.x compatibility
2508
- fixed ``gnt-instance replace-disks`` with iallocator
2509
- add TCP keepalives on twisted connections to detect restarted nodes
2510
- disk increase support, see ``gnt-instance grow-disk``
2511
- implement bulk node/instance query for RAPI
2512
- add tags in node/instance listing (optional)
2513
- experimental migration (and live migration) support, read the man page
2514
  for ``gnt-instance migrate``
2515
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2516
  has some small improvements in handling its state file
2517

    
2518

    
2519
Version 1.2.4
2520
-------------
2521

    
2522
*(Released Fri, 13 Jun 2008)*
2523

    
2524
- Experimental readonly, REST-based remote API implementation;
2525
  automatically started on master node, TCP port 5080, if enabled by
2526
  ``--enable-rapi`` parameter to configure script.
2527
- Instance allocator support. Add and import instance accept a
2528
  ``--iallocator`` parameter, and call that instance allocator to decide
2529
  which node to use for the instance. The iallocator document describes
2530
  what's expected from an allocator script.
2531
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2532
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2533
  node is lost there is still enough memory to fail over the instances
2534
  that reside on it.
2535
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2536
  ``gnt-cluster verify``, to check for site-specific compliance. All the
2537
  hooks will run, and their output, if any, will be displayed. Any
2538
  failing hook will make the verification return an error value.
2539
- ``gnt-cluster verify`` now checks that its peers are reachable on the
2540
  primary and secondary interfaces
2541
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2542
  that is still declared as part of the cluster and has failed.
2543
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
2544
  specifying output fields, that just adds the chosen fields to the
2545
  default ones.
2546
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
2547
  export from the filesystem.
2548
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2549
  have been added. Using them you can enable/disable acpi and pae
2550
  support, and specify a path for a cd image to be exported to the
2551
  instance. These parameters as the name suggest only work on HVM
2552
  clusters.
2553
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2554
  PAE support will be set to the previously hardcoded values, but the
2555
  (previously hardcoded) path to the CDROM ISO image will be unset and
2556
  if required, needs to be set manually with ``gnt-instance modify``
2557
  after the upgrade.
2558
- The address to which an instance's VNC console is bound is now
2559
  selectable per-instance, rather than being cluster wide. Of course
2560
  this only applies to instances controlled via VNC, so currently just
2561
  applies to HVM clusters.
2562

    
2563

    
2564
Version 1.2.3
2565
-------------
2566

    
2567
*(Released Mon, 18 Feb 2008)*
2568

    
2569
- more tweaks to the disk activation code (especially helpful for DRBD)
2570
- change the default ``gnt-instance list`` output format, now there is
2571
  one combined status field (see the manpage for the exact values this
2572
  field will have)
2573
- some more fixes for the mac export to hooks change
2574
- make Ganeti not break with DRBD 8.2.x (which changed the version
2575
  format in ``/proc/drbd``) (issue 24)
2576
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2577
  template, allowing migration from DRBD0.7+MD to DRBD8
2578

    
2579

    
2580
Version 1.2.2
2581
-------------
2582

    
2583
*(Released Wed, 30 Jan 2008)*
2584

    
2585
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
2586
  support (issue 23)
2587
- add command aliases infrastructure and a few aliases
2588
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
2589
  man pages and the ``--help`` option of ``gnt-node
2590
  list``/``gnt-instance list``
2591
- fix ``gnt-backup list`` with down nodes (issue 21)
2592
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
2593
- fix the dist archive and add a check for including svn/git files in
2594
  the future
2595
- some developer-related changes: improve the burnin and the QA suite,
2596
  add an upload script for testing during development
2597

    
2598

    
2599
Version 1.2.1
2600
-------------
2601

    
2602
*(Released Wed, 16 Jan 2008)*
2603

    
2604
- experimental HVM support, read the install document, section
2605
  "Initializing the cluster"
2606
- allow for the PVM hypervisor per-instance kernel and initrd paths
2607
- add a new command ``gnt-cluster verify-disks`` which uses a new
2608
  algorithm to improve the reconnection of the DRBD pairs if the device
2609
  on the secondary node has gone away
2610
- make logical volume code auto-activate LVs at disk activation time
2611
- slightly improve the speed of activating disks
2612
- allow specification of the MAC address at instance creation time, and
2613
  changing it later via ``gnt-instance modify``
2614
- fix handling of external commands that generate lots of output on
2615
  stderr
2616
- update documentation with regard to minimum version of DRBD8 supported
2617

    
2618

    
2619
Version 1.2.0
2620
-------------
2621

    
2622
*(Released Tue, 4 Dec 2007)*
2623

    
2624
- Log the ``xm create`` output to the node daemon log on failure (to
2625
  help diagnosing the error)
2626
- In debug mode, log all external commands output if failed to the logs
2627
- Change parsing of lvm commands to ignore stderr
2628

    
2629

    
2630
Version 1.2 beta3
2631
-----------------
2632

    
2633
*(Released Wed, 28 Nov 2007)*
2634

    
2635
- Another round of updates to the DRBD 8 code to deal with more failures
2636
  in the replace secondary node operation
2637
- Some more logging of failures in disk operations (lvm, drbd)
2638
- A few documentation updates
2639
- QA updates
2640

    
2641

    
2642
Version 1.2 beta2
2643
-----------------
2644

    
2645
*(Released Tue, 13 Nov 2007)*
2646

    
2647
- Change configuration file format from Python's Pickle to JSON.
2648
  Upgrading is possible using the cfgupgrade utility.
2649
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
2650
  faster replace disks and is more stable (DRBD 8 has many improvements
2651
  compared to DRBD 0.7)
2652
- Added command line tags support (see man pages for ``gnt-instance``,
2653
  ``gnt-node``, ``gnt-cluster``)
2654
- Added instance rename support
2655
- Added multi-instance startup/shutdown
2656
- Added cluster rename support
2657
- Added ``gnt-node evacuate`` to simplify some node operations
2658
- Added instance reboot operation that can speedup reboot as compared to
2659
  stop and start
2660
- Soften the requirement that hostnames are in FQDN format
2661
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
2662
  reboots
2663
- Removed dependency on debian's patched fping that uses the
2664
  non-standard ``-S`` option
2665
- Now the OS definitions are searched for in multiple, configurable
2666
  paths (easier for distros to package)
2667
- Some changes to the hooks infrastructure (especially the new
2668
  post-configuration update hook)
2669
- Other small bugfixes
2670

    
2671
.. vim: set textwidth=72 syntax=rst :
2672
.. Local Variables:
2673
.. mode: rst
2674
.. fill-column: 72
2675
.. End: