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1
News
2
====
3

    
4
Version 2.0.3
5
-------------
6

    
7
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
8
  to allow using the pre-2.0.2 behaviour in activation, if any existing
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  instances have mismatched disk sizes in the configuration
10
- Added ``gnt-cluster repair-disk-sizes`` command to check and update any
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  configuration mismatches for disk sizes
12
- Added ``gnt-master cluste-failover --no-voting`` to allow master
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  failover to work on two-node clusters
14
- Fixed the ‘--net’ option of ``gnt-backup import``, which was unusable
15
- Fixed detection of OS script errors in ``gnt-backup export``
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- Fixed exit code of ``gnt-backup export``
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Version 2.0.2
20
-------------
21

    
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- Added experimental support for stripped logical volumes; this should
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  enhance performance but comes with a higher complexity in the block
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  device handling; stripping is only enabled when passing
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  ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
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  affected even in the non-stripped mode
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- Improved resiliency against transient failures at the end of DRBD
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  resyncs, and in general of DRBD resync checks
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- Fixed a couple of issues with exports and snapshot errors
30
- Fixed a couple of issues in instance listing
31
- Added display of the disk size in ``gnt-instance info``
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- Fixed checking for valid OSes in instance creation
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- Fixed handling of the ‘vcpus’ parameter in instance listing and in
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  general of invalid parameters
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- Fixed http server library, and thus RAPI, to handle invalid
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  username/password combinations correctly; this means that now they
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  report unauthorized for queries too, not only for modifications,
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  allowing earlier detect of configuration problems
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- Added a new ‘role’ node list field, equivalent to the master/master
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  candidate/drained/offline flags combinations
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- Fixed cluster modify and changes of candidate pool size
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- Fixed cluster verify error messages for wrong files on regular nodes
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- Fixed a couple of issues with node demotion from master candidate role
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- Fixed node readd issues
45
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
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- Added a new ‘--no-voting’ option for masterfailover to fix failover on
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  two-nodes clusters when the former master node is unreachable
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- Added instance reinstall over RAPI
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Version 2.0.1
52
-------------
53

    
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- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
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  allow re-adding the start in single-user option (regression from 1.2)
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- the watcher writes the instance status to a file, to allow monitoring
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  to report the instance status (from the master) based on cached
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  results of the watcher's queries; while this can get stale if the
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  watcher is being locked due to other work on the cluster, this is
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  still an improvement
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- the watcher now also restarts the node daemon and the rapi daemon if
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  they died
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- fixed the watcher to handle full and drained queue cases
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- hooks export more instance data in the environment, which helps if hook
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  scripts need to take action based on the instance's properties (no
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  longer need to query back into ganeti)
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- instance failovers when the instance is stopped do not check for free
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  RAM, so that failing over a stopped instance is possible in low memory
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  situations
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- rapi uses queries for tags instead of jobs (for less job traffic), and
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  for cluster tags it won't talk to masterd at all but read them from
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  ssconf
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- a couple of error handling fixes in RAPI
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- drbd handling: improved the error handling of inconsistent disks after
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  resync to reduce the frequency of "there are some degraded disks for
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  this instance" messages
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- fixed a bug in live migration when DRBD doesn't want to reconnect (the
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  error handling path called a wrong function name)
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Version 2.0.0 final
82
-------------------
83

    
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- no changes from rc5
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Version 2.0 release candidate 5
88
-------------------------------
89

    
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- fix a couple of bugs (validation, argument checks)
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- fix ``gnt-cluster getmaster`` on non-master nodes (regression)
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- some small improvements to RAPI and IAllocator
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- make watcher automatically start the master daemon if down
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Version 2.0 release candidate 4
97
-------------------------------
98

    
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- change the OS list to not require locks; this helps with big clusters
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- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
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  volume group is broken
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- ``gnt-instance info``, without any arguments, doesn't run for all
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  instances anymore; either pass ``--all`` or pass the desired
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  instances; this helps against mistakes on big clusters where listing
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  the information for all instances takes a long time
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- miscellaneous doc and man pages fixes
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Version 2.0 release candidate 3
110
-------------------------------
111

    
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- Change the internal locking model of some ``gnt-node`` commands, in
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  order to reduce contention (and blocking of master daemon) when
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  batching many creation/reinstall jobs
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- Fixes to Xen soft reboot
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- No longer build documentation at build time, instead distribute it in
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  the archive, in order to reduce the need for the whole docbook/rst
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  toolchains
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Version 2.0 release candidate 2
122
-------------------------------
123

    
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- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
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- Fix watcher startup sequence, improves the behaviour of busy clusters
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- Some other fixes in ``gnt-cluster verify``, ``gnt-instance
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  replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
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  bind address and other places
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- Some documentation fixes and updates
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Version 2.0 release candidate 1
133
-------------------------------
134

    
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- More documentation updates, now all docs should be more-or-less
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  up-to-date
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- A couple of small fixes (mixed hypervisor clusters, offline nodes,
138
  etc.)
139
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
140
  and KVM)
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- Fix an issue related to $libdir/run/ganeti and cluster creation
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Version 2.0 beta 2
145
------------------
146

    
147
- Xen PVM and KVM have switched the default value for the instance root
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  disk to the first partition on the first drive, instead of the whole
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  drive; this means that the OS installation scripts must be changed
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  accordingly
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- Man pages have been updated
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- RAPI has been switched by default to HTTPS, and the exported functions
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  should all work correctly
154
- RAPI v1 has been removed
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- Many improvements to the KVM hypervisor
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- Block device errors are now better reported
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- Many other bugfixes and small improvements
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Version 2.0 beta 1
161
------------------
162

    
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- Version 2 is a general rewrite of the code and therefore the
164
  differences are too many to list, see the design document for 2.0 in
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  the ``doc/`` subdirectory for more details
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- In this beta version there is not yet a migration path from 1.2 (there
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  will be one in the final 2.0 release)
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- A few significant changes are:
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  - all commands are executed by a daemon (``ganeti-masterd``) and the
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    various ``gnt-*`` commands are just front-ends to it
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  - all the commands are entered into, and executed from a job queue, see
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    the ``gnt-job(8)`` manpage
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  - the RAPI daemon supports read-write operations, secured by basic HTTP
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    authentication on top of HTTPS
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  - DRBD version 0.7 support has been removed, DRBD 8 is the only
177
    supported version (when migrating from Ganeti 1.2 to 2.0, you need
178
    to migrate to DRBD 8 first while still running Ganeti 1.2)
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  - DRBD devices are using statically allocated minor numbers, which
180
    will be assigned to existing instances during the migration process
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  - there is support for both Xen PVM and Xen HVM instances running on
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    the same cluster
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  - KVM virtualization is supported too
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  - file-based storage has been implemented, which means that it is
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    possible to run the cluster without LVM and DRBD storage, for
186
    example using a shared filesystem exported from shared storage (and
187
    still have live migration)
188

    
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190
Version 1.2.7
191
-------------
192

    
193
- Change the default reboot type in ``gnt-instance reboot`` to "hard"
194
- Reuse the old instance mac address by default on instance import, if
195
  the instance name is the same.
196
- Handle situations in which the node info rpc returns incomplete results
197
  (issue 46)
198
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
199
- Improved version of batcher:
200

    
201
  - state file support
202
  - instance mac address support
203
  - support for HVM clusters/instances
204

    
205
- Add an option to show the number of cpu sockets and nodes in
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  ``gnt-node list``
207
- Support OSes that handle more than one version of the OS api (but do
208
  not change the current API in any other way)
209
- Fix ``gnt-node migrate``
210
- ``gnt-debug`` man page
211
- Fixes various more typos and small issues
212
- Increase disk resync maximum speed to 60MB/s (from 30MB/s)
213

    
214

    
215
Version 1.2.6
216
-------------
217

    
218
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
219
  type of disk exported to fully virtualized instances.
220
- provide access to the serial console of HVM instances
221
- instance auto_balance flag, set by default. If turned off it will avoid
222
  warnings on cluster verify if there is not enough memory to fail over
223
  an instance. in the future it will prevent automatically failing it
224
  over when we will support that.
225
- batcher tool for instance creation, see ``tools/README.batcher``
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- ``gnt-instance reinstall --select-os`` to interactively select a new
227
  operating system when reinstalling an instance.
228
- when changing the memory amount on instance modify a check has been
229
  added that the instance will be able to start. also warnings are
230
  emitted if the instance will not be able to fail over, if auto_balance
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  is true.
232
- documentation fixes
233
- sync fields between ``gnt-instance list/modify/add/import``
234
- fix a race condition in drbd when the sync speed was set after giving
235
  the device a remote peer.
236

    
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238
Version 1.2.5
239
-------------
240

    
241
- note: the allowed size and number of tags per object were reduced
242
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
243
- fixed twisted 8.x compatibility
244
- fixed ``gnt-instance replace-disks`` with iallocator
245
- add TCP keepalives on twisted connections to detect restarted nodes
246
- disk increase support, see ``gnt-instance grow-disk``
247
- implement bulk node/instance query for RAPI
248
- add tags in node/instance listing (optional)
249
- experimental migration (and live migration) support, read the man page
250
  for ``gnt-instance migrate``
251
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also
252
  has some small improvements in handling its state file
253

    
254

    
255
Version 1.2.4
256
-------------
257

    
258
- Experimental readonly, REST-based remote API implementation;
259
  automatically started on master node, TCP port 5080, if enabled by
260
  ``--enable-rapi`` parameter to configure script.
261
- Instance allocator support. Add and import instance accept a
262
  ``--iallocator`` parameter, and call that instance allocator to decide
263
  which node to use for the instance. The iallocator document describes
264
  what's expected from an allocator script.
265
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
266
  ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
267
  node is lost there is still enough memory to fail over the instances
268
  that reside on it.
269
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
270
  ``gnt-cluster verify``, to check for site-specific compliance. All the
271
  hooks will run, and their output, if any, will be displayed. Any
272
  failing hook will make the verification return an error value.
273
- ``gnt-cluster verify`` now checks that its peers are reachable on the
274
  primary and secondary interfaces
275
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node
276
  that is still declared as part of the cluster and has failed.
277
- ``gnt-* list`` commands now accept a new ``-o +field`` way of
278
  specifying output fields, that just adds the chosen fields to the
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  default ones.
280
- ``gnt-backup`` now has a new ``remove`` command to delete an existing
281
  export from the filesystem.
282
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
283
  have been added. Using them you can enable/disable acpi and pae
284
  support, and specify a path for a cd image to be exported to the
285
  instance. These parameters as the name suggest only work on HVM
286
  clusters.
287
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
288
  PAE support will be set to the previously hardcoded values, but the
289
  (previously hardcoded) path to the CDROM ISO image will be unset and
290
  if required, needs to be set manually with ``gnt-instance modify``
291
  after the upgrade.
292
- The address to which an instance's VNC console is bound is now
293
  selectable per-instance, rather than being cluster wide. Of course
294
  this only applies to instances controlled via VNC, so currently just
295
  applies to HVM clusters.
296

    
297

    
298
Version 1.2.3
299
-------------
300

    
301
- more tweaks to the disk activation code (especially helpful for DRBD)
302
- change the default ``gnt-instance list`` output format, now there is
303
  one combined status field (see the manpage for the exact values this
304
  field will have)
305
- some more fixes for the mac export to hooks change
306
- make Ganeti not break with DRBD 8.2.x (which changed the version
307
  format in ``/proc/drbd``) (issue 24)
308
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk
309
  template, allowing migration from DRBD0.7+MD to DRBD8
310

    
311

    
312
Version 1.2.2
313
-------------
314

    
315
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
316
  support (issue 23)
317
- add command aliases infrastructure and a few aliases
318
- allow listing of VCPUs in the ``gnt-instance list`` and improve the
319
  man pages and the ``--help`` option of ``gnt-node
320
  list``/``gnt-instance list``
321
- fix ``gnt-backup list`` with down nodes (issue 21)
322
- change the tools location (move from $pkgdatadir to $pkglibdir/tools)
323
- fix the dist archive and add a check for including svn/git files in
324
  the future
325
- some developer-related changes: improve the burnin and the QA suite,
326
  add an upload script for testing during development
327

    
328

    
329
Version 1.2.1
330
-------------
331

    
332
- experimental HVM support, read the install document, section
333
  "Initializing the cluster"
334
- allow for the PVM hypervisor per-instance kernel and initrd paths
335
- add a new command ``gnt-cluster verify-disks`` which uses a new
336
  algorithm to improve the reconnection of the DRBD pairs if the device
337
  on the secondary node has gone away
338
- make logical volume code auto-activate LVs at disk activation time
339
- slightly improve the speed of activating disks
340
- allow specification of the MAC address at instance creation time, and
341
  changing it later via ``gnt-instance modify``
342
- fix handling of external commands that generate lots of output on
343
  stderr
344
- update documentation with regard to minimum version of DRBD8 supported
345

    
346

    
347
Version 1.2.0
348
-------------
349

    
350
- Log the ``xm create`` output to the node daemon log on failure (to help
351
  diagnosing the error)
352
- In debug mode, log all external commands output if failed to the logs
353
- Change parsing of lvm commands to ignore stderr
354

    
355

    
356
Version 1.2b3
357
-------------
358

    
359
- Another round of updates to the DRBD 8 code to deal with more failures
360
  in the replace secondary node operation
361
- Some more logging of failures in disk operations (lvm, drbd)
362
- A few documentation updates
363
- QA updates
364

    
365

    
366
Version 1.2b2
367
-------------
368

    
369
- Change configuration file format from Python's Pickle to JSON.
370
  Upgrading is possible using the cfgupgrade utility.
371
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
372
  faster replace disks and is more stable (DRBD 8 has many improvements
373
  compared to DRBD 0.7)
374
- Added command line tags support (see man pages for ``gnt-instance``,
375
  ``gnt-node``, ``gnt-cluster``)
376
- Added instance rename support
377
- Added multi-instance startup/shutdown
378
- Added cluster rename support
379
- Added ``gnt-node evacuate`` to simplify some node operations
380
- Added instance reboot operation that can speedup reboot as compared to
381
  stop and start
382
- Soften the requirement that hostnames are in FQDN format
383
- The ``ganeti-watcher`` now activates drbd pairs after secondary node
384
  reboots
385
- Removed dependency on debian's patched fping that uses the
386
  non-standard ``-S`` option
387
- Now the OS definitions are searched for in multiple, configurable paths
388
  (easier for distros to package)
389
- Some changes to the hooks infrastructure (especially the new
390
  post-configuration update hook)
391
- Other small bugfixes
392

    
393
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