NEWS 36.4 KB
Newer Older
Michael Hanselmann's avatar
Michael Hanselmann committed
1
2
News
====
3

4
5
6
Version 2.2.0
-------------

7
8
9
10
- Added tool (``move-instance``) and infrastructure to move instances
  between separate clusters (see :doc:`separate documentation
  <move-instance>` and :doc:`design document <design-2.2>`)
- Added per-request RPC timeout
11
12
13
- RAPI now requires a Content-Type header for requests with a body (e.g.
  ``PUT`` or ``POST``) which must be set to ``application/json`` (see
  RFC2616 (HTTP/1.1), section 7.2.1)
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
  reachable
- Implemented initial support for running Ganeti daemons as separate
  users, see configure-time flags ``--with-user-prefix`` and
  ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
  time)
- Instances can be removed after export (``gnt-backup export
  --remove-instance``)
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA
  key (instead of 1024 bit)
- Added new cluster configuration file for cluster domain secret
- Import/export now use SSL instead of SSH
- Added support for showing estimated time when exporting an instance,
  see the ``ganeti-os-interface(7)`` manpage and look for
  ``EXP_SIZE_FD``
29

30

Guido Trotter's avatar
Guido Trotter committed
31
32
33
Version 2.1.3
-------------

34
*(Released Thu, 3 Jun 2010)*
Guido Trotter's avatar
Guido Trotter committed
35
36
37
38
39
40
41
42
43
44
45
46

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

Significant features
~~~~~~~~~~~~~~~~~~~~

The node deamon now tries to mlock itself into memory, unless the
``--no-mlock`` flag is passed. It also doesn't fail if it can't write
its logs, and falls back to console logging. This allows emergency
features such as ``gnt-node powercycle`` to work even in the event of a
broken node disk (tested offlining the disk hosting the node's
47
filesystem and dropping its memory caches; don't try this at home)
Guido Trotter's avatar
Guido Trotter committed
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69

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

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

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

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

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

Now with ancient latin support. Try it passing the ``--roman`` option to
70
71
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
(requires the python-roman module to be installed, in order to work).
Guido Trotter's avatar
Guido Trotter committed
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89

Other changes
~~~~~~~~~~~~~

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

  - Lots of improvements and cleanups to the experimental Remote API
    (RAPI) client library.
  - A new unit test suite for the core daemon libraries.
  - A fix to creating missing directories makes sure the umask is not
    applied anymore. This enforces the same directory permissions
    everywhere.
  - Better handling terminating daemons with ctrl+c (used when running
    them in debugging mode).
  - Fix a race condition in live migrating a KVM instance, when stat()
    on the old proc status file returned EINVAL, which is an unexpected
    value.
Guido Trotter's avatar
Guido Trotter committed
90
91
  - Fixed manpage checking with newer man and utf-8 charachters. But now
    you need the en_US.UTF-8 locale enabled to build Ganeti from git.
Guido Trotter's avatar
Guido Trotter committed
92
93


Guido Trotter's avatar
Guido Trotter committed
94
95
96
97
98
99
100
Version 2.1.2.1
---------------

*(Released Fri, 7 May 2010)*

Fix a bug which prevented untagged KVM instances from starting.

Guido Trotter's avatar
Guido Trotter committed
101

Iustin Pop's avatar
Iustin Pop committed
102
103
104
Version 2.1.2
-------------

Iustin Pop's avatar
Iustin Pop committed
105
*(Released Fri, 7 May 2010)*
Iustin Pop's avatar
Iustin Pop committed
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198

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

Significant features
~~~~~~~~~~~~~~~~~~~~

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

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

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

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

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

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

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

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

Other changes
~~~~~~~~~~~~~

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

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


199
200
201
Version 2.1.1
-------------

Iustin Pop's avatar
Iustin Pop committed
202
203
*(Released Fri, 12 Mar 2010)*

204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
During the 2.1.0 long release candidate cycle, a lot of improvements and
changes have accumulated with were released later as 2.1.1.

Major changes
~~~~~~~~~~~~~

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

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

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

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

Bug fixes
~~~~~~~~~

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

New features
~~~~~~~~~~~~

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


315
316
317
Version 2.1.0
-------------

Iustin Pop's avatar
Iustin Pop committed
318
319
*(Released Tue, 2 Mar 2010)*

320
321
322
323
324
325
326
327
328
329
Ganeti 2.1 brings many improvements with it. Major changes:

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

330
In-depth implementation details can be found in the Ganeti 2.1 design
331
332
333
334
335
336
337
338
339
340
document.

Details
~~~~~~~

- Added chroot hypervisor
- Added more options to xen-hvm hypervisor (``kernel_path`` and
  ``device_model``)
- Added more options to xen-pvm hypervisor (``use_bootloader``,
  ``bootloader_path`` and ``bootloader_args``)
341
342
343
- Added the ``use_localtime`` option for the xen-hvm and kvm
  hypervisors, and the default value for this has changed to false (in
  2.0 xen-hvm always enabled it)
344
- Added luxi call to submit multiple jobs in one go
345
- Added cluster initialization option to not modify ``/etc/hosts``
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
  file on nodes
- Added network interface parameters
- Added dry run mode to some LUs
- Added RAPI resources:

  - ``/2/instances/[instance_name]/info``
  - ``/2/instances/[instance_name]/replace-disks``
  - ``/2/nodes/[node_name]/evacuate``
  - ``/2/nodes/[node_name]/migrate``
  - ``/2/nodes/[node_name]/role``
  - ``/2/nodes/[node_name]/storage``
  - ``/2/nodes/[node_name]/storage/modify``
  - ``/2/nodes/[node_name]/storage/repair``

- Added OpCodes to evacuate or migrate all instances on a node
Iustin Pop's avatar
Iustin Pop committed
361
362
- Added new command to list storage elements on nodes (``gnt-node
  list-storage``) and modify them (``gnt-node modify-storage``)
363
364
365
366
367
368
369
370
371
372
- Added new ssconf files with master candidate IP address
  (``ssconf_master_candidates_ips``), node primary IP address
  (``ssconf_node_primary_ips``) and node secondary IP address
  (``ssconf_node_secondary_ips``)
- Added ``ganeti-confd`` and a client library to query the Ganeti
  configuration via UDP
- Added ability to run hooks after cluster initialization and before
  cluster destruction
- Added automatic mode for disk replace (``gnt-instance replace-disks
  --auto``)
373
374
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks
  after catastrophic data-loss
Iustin Pop's avatar
Iustin Pop committed
375
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume
376
377
378
379
380
381
382
383
  groups
- Added ``gnt-instance move`` command to move instances
- Added ``gnt-cluster watcher`` command to control watcher
- Added ``gnt-node powercycle`` command to powercycle nodes
- Added new job status field ``lock_status``
- Added parseable error codes to cluster verification (``gnt-cluster
  verify --error-codes``) and made output less verbose (use
  ``--verbose`` to restore previous behaviour)
384
- Added UUIDs to the main config entities (cluster, nodes, instances)
385
- Added support for OS variants
Michael Hanselmann's avatar
Michael Hanselmann committed
386
387
388
389
- Added support for hashed passwords in the Ganeti remote API users file
  (``rapi_users``)
- Added option to specify maximum timeout on instance shutdown
- Added ``--no-ssh-init`` option to ``gnt-cluster init``
390
391
392
393
- Added new helper script to start and stop Ganeti daemons
  (``daemon-util``), with the intent to reduce the work necessary to
  adjust Ganeti for non-Debian distributions and to start/stop daemons
  from one place
394
395
- Added more unittests
- Fixed critical bug in ganeti-masterd startup
396
397
398
- Removed the configure-time ``kvm-migration-port`` parameter, this is
  now customisable at the cluster level for both the KVM and Xen
  hypervisors using the new ``migration_port`` parameter
399
400
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
  reinstalling an instance
Michael Hanselmann's avatar
Michael Hanselmann committed
401
- Allowed ``@`` in tag names
Michael Hanselmann's avatar
Michael Hanselmann committed
402
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
403
404
405
406
407
408
409
410
411
412
413
414
415
- Many documentation updates
- Distribute hypervisor files on ``gnt-cluster redist-conf``
- ``gnt-instance reinstall`` can now reinstall multiple instances
- Updated many command line parameters
- Introduced new OS API version 15
- No longer support a default hypervisor
- Treat virtual LVs as inexistent
- Improved job locking logic to reduce lock contention
- Match instance and node names case insensitively
- Reimplemented bash completion script to be more complete
- Improved burnin


416
Version 2.0.6
417
418
-------------

Iustin Pop's avatar
Iustin Pop committed
419
420
*(Released Thu, 4 Feb 2010)*

421
422
423
424
425
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
- Fix a string formatting bug
- Improve safety of the code in some error paths
- Improve data validation in the master of values returned from nodes

426

427
Version 2.0.5
428
429
-------------

Iustin Pop's avatar
Iustin Pop committed
430
431
*(Released Thu, 17 Dec 2009)*

432
433
434
435
436
- Fix security issue due to missing validation of iallocator names; this
  allows local and remote execution of arbitrary executables
- Fix failure of gnt-node list during instance removal
- Ship the RAPI documentation in the archive

437

438
Version 2.0.4
439
440
-------------

Iustin Pop's avatar
Iustin Pop committed
441
442
*(Released Wed, 30 Sep 2009)*

443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
- Fixed many wrong messages
- Fixed a few bugs related to the locking library
- Fixed MAC checking at instance creation time
- Fixed a DRBD parsing bug related to gaps in /proc/drbd
- Fixed a few issues related to signal handling in both daemons and
  scripts
- Fixed the example startup script provided
- Fixed insserv dependencies in the example startup script (patch from
  Debian)
- Fixed handling of drained nodes in the iallocator framework
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
  #528618)
- Fixed error related to invalid job IDs in job polling
- Fixed job/opcode persistence on unclean master shutdown
- Fixed handling of partial job processing after unclean master
  shutdown
- Fixed error reporting from LUs, previously all errors were converted
  into execution errors
- Fixed error reporting from burnin
- Decreased significantly the memory usage of the job queue
- Optimised slightly multi-job submission
- Optimised slightly opcode loading
- Backported the multi-job submit framework from the development
  branch; multi-instance start and stop should be faster
- Added script to clean archived jobs after 21 days; this will reduce
  the size of the queue directory
- Added some extra checks in disk size tracking
- Added an example ethers hook script
- Added a cluster parameter that prevents Ganeti from modifying of
  /etc/hosts
- Added more node information to RAPI responses
Michael Hanselmann's avatar
Michael Hanselmann committed
474
- Added a ``gnt-job watch`` command that allows following the ouput of a
475
476
477
478
479
480
  job
- Added a bind-address option to ganeti-rapi
- Added more checks to the configuration verify
- Enhanced the burnin script such that some operations can be retried
  automatically
- Converted instance reinstall to multi-instance model
Michael Hanselmann's avatar
Michael Hanselmann committed
481

Michael Hanselmann's avatar
Michael Hanselmann committed
482

483
Version 2.0.3
Michael Hanselmann's avatar
Michael Hanselmann committed
484
485
-------------

Iustin Pop's avatar
Iustin Pop committed
486
487
*(Released Fri, 7 Aug 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
488
489
490
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
  to allow using the pre-2.0.2 behaviour in activation, if any existing
  instances have mismatched disk sizes in the configuration
491
492
- Added ``gnt-cluster repair-disk-sizes`` command to check and update
  any configuration mismatches for disk sizes
Michael Hanselmann's avatar
Michael Hanselmann committed
493
494
- Added ``gnt-master cluste-failover --no-voting`` to allow master
  failover to work on two-node clusters
Michael Hanselmann's avatar
Michael Hanselmann committed
495
496
- Fixed the ``--net`` option of ``gnt-backup import``, which was
  unusable
Michael Hanselmann's avatar
Michael Hanselmann committed
497
498
499
- Fixed detection of OS script errors in ``gnt-backup export``
- Fixed exit code of ``gnt-backup export``

500

501
Version 2.0.2
Michael Hanselmann's avatar
Michael Hanselmann committed
502
503
-------------

Iustin Pop's avatar
Iustin Pop committed
504
505
*(Released Fri, 17 Jul 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
506
507
508
509
510
511
512
513
514
515
516
- Added experimental support for stripped logical volumes; this should
  enhance performance but comes with a higher complexity in the block
  device handling; stripping is only enabled when passing
  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
  affected even in the non-stripped mode
- Improved resiliency against transient failures at the end of DRBD
  resyncs, and in general of DRBD resync checks
- Fixed a couple of issues with exports and snapshot errors
- Fixed a couple of issues in instance listing
- Added display of the disk size in ``gnt-instance info``
- Fixed checking for valid OSes in instance creation
Michael Hanselmann's avatar
Michael Hanselmann committed
517
- Fixed handling of the "vcpus" parameter in instance listing and in
Michael Hanselmann's avatar
Michael Hanselmann committed
518
519
520
521
522
  general of invalid parameters
- Fixed http server library, and thus RAPI, to handle invalid
  username/password combinations correctly; this means that now they
  report unauthorized for queries too, not only for modifications,
  allowing earlier detect of configuration problems
Michael Hanselmann's avatar
Michael Hanselmann committed
523
- Added a new "role" node list field, equivalent to the master/master
Michael Hanselmann's avatar
Michael Hanselmann committed
524
525
526
527
528
529
  candidate/drained/offline flags combinations
- Fixed cluster modify and changes of candidate pool size
- Fixed cluster verify error messages for wrong files on regular nodes
- Fixed a couple of issues with node demotion from master candidate role
- Fixed node readd issues
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
Michael Hanselmann's avatar
Michael Hanselmann committed
530
531
- Added a new ``--no-voting`` option for masterfailover to fix failover
  on two-nodes clusters when the former master node is unreachable
Michael Hanselmann's avatar
Michael Hanselmann committed
532
533
- Added instance reinstall over RAPI

534

535
Version 2.0.1
Michael Hanselmann's avatar
Michael Hanselmann committed
536
537
-------------

Iustin Pop's avatar
Iustin Pop committed
538
539
*(Released Tue, 16 Jun 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
540
541
542
543
544
545
546
547
548
549
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
  allow re-adding the start in single-user option (regression from 1.2)
- the watcher writes the instance status to a file, to allow monitoring
  to report the instance status (from the master) based on cached
  results of the watcher's queries; while this can get stale if the
  watcher is being locked due to other work on the cluster, this is
  still an improvement
- the watcher now also restarts the node daemon and the rapi daemon if
  they died
- fixed the watcher to handle full and drained queue cases
550
551
552
- hooks export more instance data in the environment, which helps if
  hook scripts need to take action based on the instance's properties
  (no longer need to query back into ganeti)
Michael Hanselmann's avatar
Michael Hanselmann committed
553
554
555
556
557
558
559
560
561
562
563
564
565
- instance failovers when the instance is stopped do not check for free
  RAM, so that failing over a stopped instance is possible in low memory
  situations
- rapi uses queries for tags instead of jobs (for less job traffic), and
  for cluster tags it won't talk to masterd at all but read them from
  ssconf
- a couple of error handling fixes in RAPI
- drbd handling: improved the error handling of inconsistent disks after
  resync to reduce the frequency of "there are some degraded disks for
  this instance" messages
- fixed a bug in live migration when DRBD doesn't want to reconnect (the
  error handling path called a wrong function name)

566

Iustin Pop's avatar
Iustin Pop committed
567
Version 2.0.0 final
Michael Hanselmann's avatar
Michael Hanselmann committed
568
569
-------------------

Iustin Pop's avatar
Iustin Pop committed
570
571
*(Released Wed, 27 May 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
572
573
- no changes from rc5

Iustin Pop's avatar
Iustin Pop committed
574

Iustin Pop's avatar
Iustin Pop committed
575
Version 2.0 release candidate 5
Michael Hanselmann's avatar
Michael Hanselmann committed
576
577
-------------------------------

Iustin Pop's avatar
Iustin Pop committed
578
579
*(Released Wed, 20 May 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
580
581
582
583
584
- fix a couple of bugs (validation, argument checks)
- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
- some small improvements to RAPI and IAllocator
- make watcher automatically start the master daemon if down

Iustin Pop's avatar
Iustin Pop committed
585

Iustin Pop's avatar
Iustin Pop committed
586
Version 2.0 release candidate 4
Michael Hanselmann's avatar
Michael Hanselmann committed
587
588
-------------------------------

Iustin Pop's avatar
Iustin Pop committed
589
590
*(Released Mon, 27 Apr 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
591
592
593
594
595
596
597
598
599
- change the OS list to not require locks; this helps with big clusters
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
  volume group is broken
- ``gnt-instance info``, without any arguments, doesn't run for all
  instances anymore; either pass ``--all`` or pass the desired
  instances; this helps against mistakes on big clusters where listing
  the information for all instances takes a long time
- miscellaneous doc and man pages fixes

Iustin Pop's avatar
Iustin Pop committed
600

Iustin Pop's avatar
Iustin Pop committed
601
Version 2.0 release candidate 3
Michael Hanselmann's avatar
Michael Hanselmann committed
602
603
-------------------------------

Iustin Pop's avatar
Iustin Pop committed
604
605
*(Released Wed, 8 Apr 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
606
607
608
609
610
611
612
613
- Change the internal locking model of some ``gnt-node`` commands, in
  order to reduce contention (and blocking of master daemon) when
  batching many creation/reinstall jobs
- Fixes to Xen soft reboot
- No longer build documentation at build time, instead distribute it in
  the archive, in order to reduce the need for the whole docbook/rst
  toolchains

Iustin Pop's avatar
Iustin Pop committed
614

Iustin Pop's avatar
Iustin Pop committed
615
Version 2.0 release candidate 2
Michael Hanselmann's avatar
Michael Hanselmann committed
616
617
-------------------------------

Iustin Pop's avatar
Iustin Pop committed
618
619
*(Released Fri, 27 Mar 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
620
621
622
623
624
625
626
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
- Fix watcher startup sequence, improves the behaviour of busy clusters
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
  bind address and other places
- Some documentation fixes and updates

Iustin Pop's avatar
Iustin Pop committed
627

Iustin Pop's avatar
Iustin Pop committed
628
Version 2.0 release candidate 1
Michael Hanselmann's avatar
Michael Hanselmann committed
629
630
-------------------------------

Iustin Pop's avatar
Iustin Pop committed
631
632
*(Released Mon, 2 Mar 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
633
634
635
636
637
638
639
640
- More documentation updates, now all docs should be more-or-less
  up-to-date
- A couple of small fixes (mixed hypervisor clusters, offline nodes,
  etc.)
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
  and KVM)
- Fix an issue related to $libdir/run/ganeti and cluster creation

Iustin Pop's avatar
Iustin Pop committed
641

Iustin Pop's avatar
Iustin Pop committed
642
Version 2.0 beta 2
Michael Hanselmann's avatar
Michael Hanselmann committed
643
644
------------------

Iustin Pop's avatar
Iustin Pop committed
645
646
*(Released Thu, 19 Feb 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
647
648
649
650
651
652
653
654
655
656
657
658
- Xen PVM and KVM have switched the default value for the instance root
  disk to the first partition on the first drive, instead of the whole
  drive; this means that the OS installation scripts must be changed
  accordingly
- Man pages have been updated
- RAPI has been switched by default to HTTPS, and the exported functions
  should all work correctly
- RAPI v1 has been removed
- Many improvements to the KVM hypervisor
- Block device errors are now better reported
- Many other bugfixes and small improvements

Iustin Pop's avatar
Iustin Pop committed
659

660
Version 2.0 beta 1
Michael Hanselmann's avatar
Michael Hanselmann committed
661
662
------------------

Iustin Pop's avatar
Iustin Pop committed
663
664
*(Released Mon, 26 Jan 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
665
666
667
668
669
670
671
672
673
- Version 2 is a general rewrite of the code and therefore the
  differences are too many to list, see the design document for 2.0 in
  the ``doc/`` subdirectory for more details
- In this beta version there is not yet a migration path from 1.2 (there
  will be one in the final 2.0 release)
- A few significant changes are:

  - all commands are executed by a daemon (``ganeti-masterd``) and the
    various ``gnt-*`` commands are just front-ends to it
674
675
676
677
  - all the commands are entered into, and executed from a job queue,
    see the ``gnt-job(8)`` manpage
  - the RAPI daemon supports read-write operations, secured by basic
    HTTP authentication on top of HTTPS
Michael Hanselmann's avatar
Michael Hanselmann committed
678
679
680
681
682
683
684
685
686
687
688
689
690
  - DRBD version 0.7 support has been removed, DRBD 8 is the only
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
    to migrate to DRBD 8 first while still running Ganeti 1.2)
  - DRBD devices are using statically allocated minor numbers, which
    will be assigned to existing instances during the migration process
  - there is support for both Xen PVM and Xen HVM instances running on
    the same cluster
  - KVM virtualization is supported too
  - file-based storage has been implemented, which means that it is
    possible to run the cluster without LVM and DRBD storage, for
    example using a shared filesystem exported from shared storage (and
    still have live migration)

691
692

Version 1.2.7
Michael Hanselmann's avatar
Michael Hanselmann committed
693
694
-------------

Iustin Pop's avatar
Iustin Pop committed
695
696
*(Released Tue, 13 Jan 2009)*

Michael Hanselmann's avatar
Michael Hanselmann committed
697
698
699
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
- Reuse the old instance mac address by default on instance import, if
  the instance name is the same.
700
701
- Handle situations in which the node info rpc returns incomplete
  results (issue 46)
Michael Hanselmann's avatar
Michael Hanselmann committed
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
- Improved version of batcher:

  - state file support
  - instance mac address support
  - support for HVM clusters/instances

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

718
719

Version 1.2.6
Michael Hanselmann's avatar
Michael Hanselmann committed
720
721
-------------

Iustin Pop's avatar
Iustin Pop committed
722
723
*(Released Wed, 24 Sep 2008)*

Michael Hanselmann's avatar
Michael Hanselmann committed
724
725
726
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
  type of disk exported to fully virtualized instances.
- provide access to the serial console of HVM instances
727
728
729
730
- instance auto_balance flag, set by default. If turned off it will
  avoid warnings on cluster verify if there is not enough memory to fail
  over an instance. in the future it will prevent automatically failing
  it over when we will support that.
Michael Hanselmann's avatar
Michael Hanselmann committed
731
732
733
734
735
736
737
738
739
740
741
742
- batcher tool for instance creation, see ``tools/README.batcher``
- ``gnt-instance reinstall --select-os`` to interactively select a new
  operating system when reinstalling an instance.
- when changing the memory amount on instance modify a check has been
  added that the instance will be able to start. also warnings are
  emitted if the instance will not be able to fail over, if auto_balance
  is true.
- documentation fixes
- sync fields between ``gnt-instance list/modify/add/import``
- fix a race condition in drbd when the sync speed was set after giving
  the device a remote peer.

743
744

Version 1.2.5
Michael Hanselmann's avatar
Michael Hanselmann committed
745
746
-------------

Iustin Pop's avatar
Iustin Pop committed
747
748
*(Released Tue, 22 Jul 2008)*

Michael Hanselmann's avatar
Michael Hanselmann committed
749
750
751
752
753
754
755
756
757
758
759
760
761
- note: the allowed size and number of tags per object were reduced
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
- fixed twisted 8.x compatibility
- fixed ``gnt-instance replace-disks`` with iallocator
- add TCP keepalives on twisted connections to detect restarted nodes
- disk increase support, see ``gnt-instance grow-disk``
- implement bulk node/instance query for RAPI
- add tags in node/instance listing (optional)
- experimental migration (and live migration) support, read the man page
  for ``gnt-instance migrate``
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
  has some small improvements in handling its state file

762
763

Version 1.2.4
Michael Hanselmann's avatar
Michael Hanselmann committed
764
765
-------------

Iustin Pop's avatar
Iustin Pop committed
766
767
*(Released Fri, 13 Jun 2008)*

Michael Hanselmann's avatar
Michael Hanselmann committed
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
- Experimental readonly, REST-based remote API implementation;
  automatically started on master node, TCP port 5080, if enabled by
  ``--enable-rapi`` parameter to configure script.
- Instance allocator support. Add and import instance accept a
  ``--iallocator`` parameter, and call that instance allocator to decide
  which node to use for the instance. The iallocator document describes
  what's expected from an allocator script.
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
  node is lost there is still enough memory to fail over the instances
  that reside on it.
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
  ``gnt-cluster verify``, to check for site-specific compliance. All the
  hooks will run, and their output, if any, will be displayed. Any
  failing hook will make the verification return an error value.
- ``gnt-cluster verify`` now checks that its peers are reachable on the
  primary and secondary interfaces
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
  that is still declared as part of the cluster and has failed.
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
  specifying output fields, that just adds the chosen fields to the
  default ones.
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
  export from the filesystem.
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
  have been added. Using them you can enable/disable acpi and pae
  support, and specify a path for a cd image to be exported to the
  instance. These parameters as the name suggest only work on HVM
  clusters.
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
  PAE support will be set to the previously hardcoded values, but the
  (previously hardcoded) path to the CDROM ISO image will be unset and
  if required, needs to be set manually with ``gnt-instance modify``
  after the upgrade.
- The address to which an instance's VNC console is bound is now
  selectable per-instance, rather than being cluster wide. Of course
  this only applies to instances controlled via VNC, so currently just
  applies to HVM clusters.

807

808
Version 1.2.3
Michael Hanselmann's avatar
Michael Hanselmann committed
809
810
-------------

Iustin Pop's avatar
Iustin Pop committed
811
812
*(Released Mon, 18 Feb 2008)*

Michael Hanselmann's avatar
Michael Hanselmann committed
813
814
815
816
817
818
819
820
821
822
- more tweaks to the disk activation code (especially helpful for DRBD)
- change the default ``gnt-instance list`` output format, now there is
  one combined status field (see the manpage for the exact values this
  field will have)
- some more fixes for the mac export to hooks change
- make Ganeti not break with DRBD 8.2.x (which changed the version
  format in ``/proc/drbd``) (issue 24)
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
  template, allowing migration from DRBD0.7+MD to DRBD8

823

824
Version 1.2.2
Michael Hanselmann's avatar
Michael Hanselmann committed
825
826
-------------

Iustin Pop's avatar
Iustin Pop committed
827
828
*(Released Wed, 30 Jan 2008)*

Michael Hanselmann's avatar
Michael Hanselmann committed
829
830
831
832
833
834
835
836
837
838
839
840
841
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
  support (issue 23)
- add command aliases infrastructure and a few aliases
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
  man pages and the ``--help`` option of ``gnt-node
  list``/``gnt-instance list``
- fix ``gnt-backup list`` with down nodes (issue 21)
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
- fix the dist archive and add a check for including svn/git files in
  the future
- some developer-related changes: improve the burnin and the QA suite,
  add an upload script for testing during development

842

843
Version 1.2.1
Michael Hanselmann's avatar
Michael Hanselmann committed
844
845
-------------

Iustin Pop's avatar
Iustin Pop committed
846
847
*(Released Wed, 16 Jan 2008)*

Michael Hanselmann's avatar
Michael Hanselmann committed
848
849
850
851
852
853
854
855
856
857
858
859
860
861
- experimental HVM support, read the install document, section
  "Initializing the cluster"
- allow for the PVM hypervisor per-instance kernel and initrd paths
- add a new command ``gnt-cluster verify-disks`` which uses a new
  algorithm to improve the reconnection of the DRBD pairs if the device
  on the secondary node has gone away
- make logical volume code auto-activate LVs at disk activation time
- slightly improve the speed of activating disks
- allow specification of the MAC address at instance creation time, and
  changing it later via ``gnt-instance modify``
- fix handling of external commands that generate lots of output on
  stderr
- update documentation with regard to minimum version of DRBD8 supported

862

863
Version 1.2.0
Michael Hanselmann's avatar
Michael Hanselmann committed
864
865
-------------

Iustin Pop's avatar
Iustin Pop committed
866
867
*(Released Tue, 4 Dec 2007)*

868
869
- Log the ``xm create`` output to the node daemon log on failure (to
  help diagnosing the error)
Michael Hanselmann's avatar
Michael Hanselmann committed
870
871
872
- In debug mode, log all external commands output if failed to the logs
- Change parsing of lvm commands to ignore stderr

873

874
Version 1.2b3
Michael Hanselmann's avatar
Michael Hanselmann committed
875
876
-------------

Iustin Pop's avatar
Iustin Pop committed
877
878
*(Released Wed, 28 Nov 2007)*

Michael Hanselmann's avatar
Michael Hanselmann committed
879
880
881
882
883
884
- Another round of updates to the DRBD 8 code to deal with more failures
  in the replace secondary node operation
- Some more logging of failures in disk operations (lvm, drbd)
- A few documentation updates
- QA updates

885

886
Version 1.2b2
Michael Hanselmann's avatar
Michael Hanselmann committed
887
888
-------------

Iustin Pop's avatar
Iustin Pop committed
889
890
*(Released Tue, 13 Nov 2007)*

Michael Hanselmann's avatar
Michael Hanselmann committed
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
- Change configuration file format from Python's Pickle to JSON.
  Upgrading is possible using the cfgupgrade utility.
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
  faster replace disks and is more stable (DRBD 8 has many improvements
  compared to DRBD 0.7)
- Added command line tags support (see man pages for ``gnt-instance``,
  ``gnt-node``, ``gnt-cluster``)
- Added instance rename support
- Added multi-instance startup/shutdown
- Added cluster rename support
- Added ``gnt-node evacuate`` to simplify some node operations
- Added instance reboot operation that can speedup reboot as compared to
  stop and start
- Soften the requirement that hostnames are in FQDN format
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
  reboots
- Removed dependency on debian's patched fping that uses the
  non-standard ``-S`` option
909
910
- Now the OS definitions are searched for in multiple, configurable
  paths (easier for distros to package)
Michael Hanselmann's avatar
Michael Hanselmann committed
911
912
913
- Some changes to the hooks infrastructure (especially the new
  post-configuration update hook)
- Other small bugfixes
914
915

.. vim: set textwidth=72 :
Iustin Pop's avatar
Iustin Pop committed
916
917
918
919
.. Local Variables:
.. mode: rst
.. fill-column: 72
.. End: