10 - DRBD 8.4 support. Depending on the installed DRBD version, Ganeti now uses
11 the correct command syntax. It is possible to use different DRBD versions
12 on different nodes as long as they are compatible to each other. This
13 enables rolling upgrades of DRBD with no downtime. As permanent operation
14 of different DRBD versions within a node group is discouraged,
15 ``gnt-cluster verify`` will emit a warning if it detects such a situation.
16 - hroller now also plans for capacity to move non-redundant instances off
17 any node to be rebooted; the old behavior of completely ignoring any
18 non-redundant instances can be restored by adding the --ignore-non-redundant
20 - The cluster option '--no-lvm-storage' was removed in favor of the new option
21 '--enabled-disk-templates'.
22 - On instance creation, disk templates no longer need to be specified
23 with '-t'. The default disk template will be taken from the list of
24 enabled disk templates.
25 - New "inst-status-xen" data collector for the monitoring daemon, providing
26 information about the state of the xen instances on the nodes.
27 - New "lv" data collector for the monitoring daemon, collecting data about the
28 logical volumes on the nodes, and pairing them with the name of the instances
30 - New "diskstats" data collector, collecting the data from /proc/diskstats and
31 presenting them over the monitoring daemon interface.
32 - The monitoring daemon is now running as root, in order to be able to collect
33 information only available to root (such as the state of Xen instances).
34 - The ConfD client is now IPv6 compatible.
35 - File storage is no longer dis/enabled at configure time, but using the
36 option '--enabled-disk-templates' at cluster initialization and
38 - The default directory for file storage is not anymore specified at
39 configure time, but taken from the cluster's configuration. It can be
40 set at cluster initialization with '--file-storage-dir'.
41 - Cluster verification now includes stricter checks regarding the
42 default file storage dir. It now checks that the file storage
43 directory is explicitely allowed in the 'file-storage-paths' file and
44 that the directory exists on all nodes.
50 *(Released Mon, 24 Jun 2013)*
52 Incompatible/important changes
53 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
55 - Instance policy can contain multiple instance specs, as described in
56 the “Constrained instance sizes” section of :doc:`Partitioned Ganeti
57 <design-partitioned>`. As a consequence, it's not possible to partially change
58 or override instance specs. Bounding specs (min and max) can be specified as a
59 whole using the new option ``--ipolicy-bounds-specs``, while standard
60 specs use the new option ``--ipolicy-std-specs``.
61 - The output of the info command of gnt-cluster, gnt-group, gnt-node,
62 gnt-instance is a valid YAML object.
63 - hail now honors network restrictions when allocating nodes. This led to an
64 update of the IAllocator protocol. See the IAllocator documentation for
70 - The :doc:`Remote API <rapi>` daemon now supports a command line flag
71 to always require authentication, ``--require-authentication``. It can
72 be specified in ``$sysconfdir/default/ganeti``.
73 - A new cluster attribute 'enabled_disk_templates' is introduced. It will
74 be used to manage the disk templates to be used by instances in the cluster.
75 Initially, it will be set to a list that includes plain, drbd, if they were
76 enabled by specifying a volume group name, and file and sharedfile, if those
77 were enabled at configure time. Additionally, it will include all disk
78 templates that are currently used by instances. The order of disk templates
79 will be based on Ganeti's history of supporting them. In the future, the
80 first entry of the list will be used as a default disk template on instance
82 - ``cfgupgrade`` now supports a ``--downgrade`` option to bring the
83 configuration back to the previous stable version.
84 - Disk templates in group ipolicy can be restored to the default value.
85 - Initial support for diskless instances and virtual clusters in QA.
86 - More QA and unit tests for instance policies.
87 - Every opcode now contains a reason trail (visible through ``gnt-job info``)
88 describing why the opcode itself was executed.
89 - The monitoring daemon is now available. It allows users to query the cluster
90 for obtaining information about the status of the system. The daemon is only
91 responsible for providing the information over the network: the actual data
92 gathering is performed by data collectors (currently, only the DRBD status
93 collector is available).
94 - In order to help developers work on Ganeti, a new script
95 (``devel/build_chroot``) is provided, for building a chroot that contains all
96 the required development libraries and tools for compiling Ganeti on a Debian
98 - A new tool, ``harep``, for performing self-repair and recreation of instances
99 in Ganeti has been added.
100 - Split queries are enabled for tags, network, exports, cluster info, groups,
102 - New command ``show-ispecs-cmd`` for ``gnt-cluster`` and ``gnt-group``.
103 It prints the command line to set the current policies, to ease
108 The following new dependencies have been added:
111 - The ``curl`` library is not optional anymore for compiling the Haskell code.
112 - ``snap-server`` library (if monitoring is enabled).
115 - The minimum Python version needed to run Ganeti is now 2.6.
116 - ``yaml`` library (only for running the QA).
122 *(Released Thu, 04 Jul 2013)*
124 Incompatible/important changes
125 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
127 - Instance policies for disk size were documented to be on a per-disk
128 basis, but hail applied them to the sum of all disks. This has been
130 - ``hbal`` will now exit with status 0 if, during job execution over
131 LUXI, early exit has been requested and all jobs are successful;
132 before, exit status 1 was used, which cannot be differentiated from
134 - Compatibility with newer versions of rbd has been fixed
135 - ``gnt-instance batch-create`` has been changed to use the bulk create
136 opcode from Ganeti. This lead to incompatible changes in the format of
137 the JSON file. It's now not a custom dict anymore but a dict
138 compatible with the ``OpInstanceCreate`` opcode.
139 - Parent directories for file storage need to be listed in
140 ``$sysconfdir/ganeti/file-storage-paths`` now. ``cfgupgrade`` will
141 write the file automatically based on old configuration values, but it
142 can not distribute it across all nodes and the file contents should be
143 verified. Use ``gnt-cluster copyfile
144 $sysconfdir/ganeti/file-storage-paths`` once the cluster has been
145 upgraded. The reason for requiring this list of paths now is that
146 before it would have been possible to inject new paths via RPC,
147 allowing files to be created in arbitrary locations. The RPC protocol
148 is protected using SSL/X.509 certificates, but as a design principle
149 Ganeti does not permit arbitrary paths to be passed.
150 - The parsing of the variants file for OSes (see
151 :manpage:`ganeti-os-interface(7)`) has been slightly changed: now empty
152 lines and comment lines (starting with ``#``) are ignored for better
154 - The ``setup-ssh`` tool added in Ganeti 2.2 has been replaced and is no
155 longer available. ``gnt-node add`` now invokes a new tool on the
156 destination node, named ``prepare-node-join``, to configure the SSH
157 daemon. Paramiko is no longer necessary to configure nodes' SSH
158 daemons via ``gnt-node add``.
159 - Draining (``gnt-cluster queue drain``) and un-draining the job queue
160 (``gnt-cluster queue undrain``) now affects all nodes in a cluster and
161 the flag is not reset after a master failover.
162 - Python 2.4 has *not* been tested with this release. Using 2.6 or above
163 is recommended. 2.6 will be mandatory from the 2.8 series.
169 - New network management functionality to support automatic allocation
170 of IP addresses and managing of network parameters. See
171 :manpage:`gnt-network(8)` for more details.
172 - New external storage backend, to allow managing arbitrary storage
173 systems external to the cluster. See
174 :manpage:`ganeti-extstorage-interface(7)`.
175 - New ``exclusive-storage`` node parameter added, restricted to
176 nodegroup level. When it's set to true, physical disks are assigned in
177 an exclusive fashion to instances, as documented in :doc:`Partitioned
178 Ganeti <design-partitioned>`. Currently, only instances using the
179 ``plain`` disk template are supported.
180 - The KVM hypervisor has been updated with many new hypervisor
181 parameters, including a generic one for passing arbitrary command line
182 values. See a complete list in :manpage:`gnt-instance(8)`. It is now
183 compatible up to qemu 1.4.
184 - A new tool, called ``mon-collector``, is the stand-alone executor of
185 the data collectors for a monitoring system. As of this version, it
186 just includes the DRBD data collector, that can be executed by calling
187 ``mon-collector`` using the ``drbd`` parameter. See
188 :manpage:`mon-collector(7)`.
189 - A new user option, :pyeval:`rapi.RAPI_ACCESS_READ`, has been added
190 for RAPI users. It allows granting permissions to query for
191 information to a specific user without giving
192 :pyeval:`rapi.RAPI_ACCESS_WRITE` permissions.
193 - A new tool named ``node-cleanup`` has been added. It cleans remains of
194 a cluster from a machine by stopping all daemons, removing
195 certificates and ssconf files. Unless the ``--no-backup`` option is
196 given, copies of the certificates are made.
197 - Instance creations now support the use of opportunistic locking,
198 potentially speeding up the (parallel) creation of multiple instances.
199 This feature is currently only available via the :doc:`RAPI
200 <rapi>` interface and when an instance allocator is used. If the
201 ``opportunistic_locking`` parameter is set the opcode will try to
202 acquire as many locks as possible, but will not wait for any locks
203 held by other opcodes. If not enough resources can be found to
204 allocate the instance, the temporary error code
205 :pyeval:`errors.ECODE_TEMP_NORES` is returned. The operation can be
206 retried thereafter, with or without opportunistic locking.
207 - New experimental linux-ha resource scripts.
208 - Restricted-commands support: ganeti can now be asked (via command line
209 or rapi) to perform commands on a node. These are passed via ganeti
210 RPC rather than ssh. This functionality is restricted to commands
211 specified on the ``$sysconfdir/ganeti/restricted-commands`` for security
212 reasons. The file is not copied automatically.
218 - Diskless instances are now externally mirrored (Issue 237). This for
219 now has only been tested in conjunction with explicit target nodes for
221 - Queries not needing locks or RPC access to the node can now be
222 performed by the confd daemon, making them independent from jobs, and
223 thus faster to execute. This is selectable at configure time.
224 - The functionality for allocating multiple instances at once has been
225 overhauled and is now also available through :doc:`RAPI <rapi>`.
227 There are no significant changes from version 2.7.0~rc3.
233 *(Released Tue, 25 Jun 2013)*
235 - Fix permissions on the confd query socket (Issue 477)
236 - Fix permissions on the job archive dir (Issue 498)
237 - Fix handling of an internal exception in replace-disks (Issue 472)
238 - Fix gnt-node info handling of shortened names (Issue 497)
239 - Fix gnt-instance grow-disk when wiping is enabled
240 - Documentation improvements, and support for newer pandoc
241 - Fix hspace honoring ipolicy for disks (Issue 484)
242 - Improve handling of the ``kvm_extra`` HV parameter
248 *(Released Fri, 24 May 2013)*
250 - ``devel/upload`` now works when ``/var/run`` on the target nodes is a
252 - Disks added through ``gnt-instance modify`` or created through
253 ``gnt-instance recreate-disks`` are wiped, if the
254 ``prealloc_wipe_disks`` flag is set.
255 - If wiping newly created disks fails, the disks are removed. Also,
256 partial failures in creating disks through ``gnt-instance modify``
257 triggers a cleanup of the partially-created disks.
258 - Removing the master IP address doesn't fail if the address has been
260 - Fix ownership of the OS log dir
261 - Workaround missing SO_PEERCRED constant (Issue 191)
267 *(Released Fri, 3 May 2013)*
269 This was the first release candidate of the 2.7 series. Since beta3:
271 - Fix kvm compatibility with qemu 1.4 (Issue 389)
272 - Documentation updates (admin guide, upgrade notes, install
273 instructions) (Issue 372)
274 - Fix gnt-group list nodes and instances count (Issue 436)
275 - Fix compilation without non-mandatory libraries (Issue 441)
276 - Fix xen-hvm hypervisor forcing nics to type 'ioemu' (Issue 247)
277 - Make confd logging more verbose at INFO level (Issue 435)
278 - Improve "networks" documentation in :manpage:`gnt-instance(8)`
279 - Fix failure path for instance storage type conversion (Issue 229)
280 - Update htools text backend documentation
281 - Improve the renew-crypto section of :manpage:`gnt-cluster(8)`
282 - Disable inter-cluster instance move for file-based instances, because
283 it is dependant on instance export, which is not supported for
284 file-based instances. (Issue 414)
285 - Fix gnt-job crashes on non-ascii characters (Issue 427)
286 - Fix volume group checks on non-vm-capable nodes (Issue 432)
292 *(Released Mon, 22 Apr 2013)*
294 This was the third beta release of the 2.7 series. Since beta2:
296 - Fix hail to verify disk instance policies on a per-disk basis (Issue 418).
297 - Fix data loss on wrong usage of ``gnt-instance move``
298 - Properly export errors in confd-based job queries
299 - Add ``users-setup`` tool
300 - Fix iallocator protocol to report 0 as a disk size for diskless
301 instances. This avoids hail breaking when a diskless instance is
303 - Fix job queue directory permission problem that made confd job queries
304 fail. This requires running an ``ensure-dirs --full-run`` on upgrade
305 for access to archived jobs (Issue 406).
306 - Limit the sizes of networks supported by ``gnt-network`` to something
307 between a ``/16`` and a ``/30`` to prevent memory bloat and crashes.
308 - Fix bugs in instance disk template conversion
309 - Fix GHC 7 compatibility
310 - Fix ``burnin`` install path (Issue 426).
311 - Allow very small disk grows (Issue 347).
312 - Fix a ``ganeti-noded`` memory bloat introduced in 2.5, by making sure
313 that noded doesn't import masterd code (Issue 419).
314 - Make sure the default metavg at cluster init is the same as the vg, if
315 unspecified (Issue 358).
316 - Fix cleanup of partially created disks (part of Issue 416)
322 *(Released Tue, 2 Apr 2013)*
324 This was the second beta release of the 2.7 series. Since beta1:
326 - Networks no longer have a "type" slot, since this information was
327 unused in Ganeti: instead of it tags should be used.
328 - The rapi client now has a ``target_node`` option to MigrateInstance.
329 - Fix early exit return code for hbal (Issue 386).
330 - Fix ``gnt-instance migrate/failover -n`` (Issue 396).
331 - Fix ``rbd showmapped`` output parsing (Issue 312).
332 - Networks are now referenced indexed by UUID, rather than name. This
333 will require running cfgupgrade, from 2.7.0beta1, if networks are in
335 - The OS environment now includes network information.
336 - Deleting of a network is now disallowed if any instance nic is using
337 it, to prevent dangling references.
338 - External storage is now documented in man pages.
339 - The exclusive_storage flag can now only be set at nodegroup level.
340 - Hbal can now submit an explicit priority with its jobs.
341 - Many network related locking fixes.
342 - Bump up the required pylint version to 0.25.1.
343 - Fix the ``no_remember`` option in RAPI client.
344 - Many ipolicy related tests, qa, and fixes.
345 - Many documentation improvements and fixes.
346 - Fix building with ``--disable-file-storage``.
347 - Fix ``-q`` option in htools, which was broken if passed more than
349 - Some haskell/python interaction improvements and fixes.
350 - Fix iallocator in case of missing LVM storage.
351 - Fix confd config load in case of ``--no-lvm-storage``.
352 - The confd/query functionality is now mentioned in the security
359 *(Released Wed, 6 Feb 2013)*
361 This was the first beta release of the 2.7 series. All important changes
362 are listed in the latest 2.7 entry.
368 *(Released Fri, 21 Dec 2012)*
370 Important behaviour change: hbal won't rebalance anymore instances which
371 have the ``auto_balance`` attribute set to false. This was the intention
372 all along, but until now it only skipped those from the N+1 memory
373 reservation (DRBD-specific).
375 A significant number of bug fixes in this release:
377 - Fixed disk adoption interaction with ipolicy checks.
378 - Fixed networking issues when instances are started, stopped or
379 migrated, by forcing the tap device's MAC prefix to "fe" (issue 217).
380 - Fixed the warning in cluster verify for shared storage instances not
382 - Fixed removal of storage directory on shared file storage (issue 262).
383 - Fixed validation of LVM volume group name in OpClusterSetParams
384 (``gnt-cluster modify``) (issue 285).
385 - Fixed runtime memory increases (``gnt-instance modify -m``).
386 - Fixed live migration under Xen's ``xl`` mode.
387 - Fixed ``gnt-instance console`` with ``xl``.
388 - Fixed building with newer Haskell compiler/libraries.
389 - Fixed PID file writing in Haskell daemons (confd); this prevents
390 restart issues if confd was launched manually (outside of
391 ``daemon-util``) while another copy of it was running
392 - Fixed a type error when doing live migrations with KVM (issue 297) and
393 the error messages for failing migrations have been improved.
394 - Fixed opcode validation for the out-of-band commands (``gnt-node
396 - Fixed a type error when unsetting OS hypervisor parameters (issue
397 311); now it's possible to unset all OS-specific hypervisor
399 - Fixed the ``dry-run`` mode for many operations: verification of
400 results was over-zealous but didn't take into account the ``dry-run``
401 operation, resulting in "wrong" failures.
402 - Fixed bash completion in ``gnt-job list`` when the job queue has
403 hundreds of entries; especially with older ``bash`` versions, this
404 results in significant CPU usage.
406 And lastly, a few other improvements have been made:
408 - Added option to force master-failover without voting (issue 282).
409 - Clarified error message on lock conflict (issue 287).
410 - Logging of newly submitted jobs has been improved (issue 290).
411 - Hostname checks have been made uniform between instance rename and
413 - The ``--submit`` option is now supported by ``gnt-debug delay``.
414 - Shutting down the master daemon by sending SIGTERM now stops it from
415 processing jobs waiting for locks; instead, those jobs will be started
416 once again after the master daemon is started the next time (issue
418 - Support for Xen's ``xl`` program has been improved (besides the fixes
420 - Reduced logging noise in the Haskell confd daemon (only show one log
421 entry for each config reload, instead of two).
422 - Several man page updates and typo fixes.
428 *(Released Fri, 12 Oct 2012)*
430 A small bugfix release. Among the bugs fixed:
432 - Fixed double use of ``PRIORITY_OPT`` in ``gnt-node migrate``, that
433 made the command unusable.
434 - Commands that issue many jobs don't fail anymore just because some jobs
435 take so long that other jobs are archived.
436 - Failures during ``gnt-instance reinstall`` are reflected by the exit
438 - Issue 190 fixed. Check for DRBD in cluster verify is enabled only when
440 - When ``always_failover`` is set, ``--allow-failover`` is not required
441 in migrate commands anymore.
442 - ``bash_completion`` works even if extglob is disabled.
443 - Fixed bug with locks that made failover for RDB-based instances fail.
444 - Fixed bug in non-mirrored instance allocation that made Ganeti choose
445 a random node instead of one based on the allocator metric.
446 - Support for newer versions of pylint and pep8.
447 - Hail doesn't fail anymore when trying to add an instance of type
448 ``file``, ``sharedfile`` or ``rbd``.
449 - Added new Makefile target to rebuild the whole distribution, so that
450 all files are included.
456 *(Released Fri, 27 Jul 2012)*
459 .. attention:: The ``LUXI`` protocol has been made more consistent
460 regarding its handling of command arguments. This, however, leads to
461 incompatibility issues with previous versions. Please ensure that you
462 restart Ganeti daemons soon after the upgrade, otherwise most
463 ``LUXI`` calls (job submission, setting/resetting the drain flag,
464 pausing/resuming the watcher, cancelling and archiving jobs, querying
465 the cluster configuration) will fail.
474 The current ``admin_up`` field, which used to denote whether an instance
475 should be running or not, has been removed. Instead, ``admin_state`` is
476 introduced, with 3 possible values -- ``up``, ``down`` and ``offline``.
478 The rational behind this is that an instance being “down” can have
481 - it could be down during a reboot
482 - it could be temporarily be down for a reinstall
483 - or it could be down because it is deprecated and kept just for its
486 The previous Boolean state was making it difficult to do capacity
487 calculations: should Ganeti reserve memory for a down instance? Now, the
488 tri-state field makes it clear:
490 - in ``up`` and ``down`` state, all resources are reserved for the
491 instance, and it can be at any time brought up if it is down
492 - in ``offline`` state, only disk space is reserved for it, but not
495 The field can have an extra use: since the transition between ``up`` and
496 ``down`` and vice-versus is done via ``gnt-instance start/stop``, but
497 transition between ``offline`` and ``down`` is done via ``gnt-instance
498 modify``, it is possible to given different rights to users. For
499 example, owners of an instance could be allowed to start/stop it, but
500 not transition it out of the offline state.
502 Instance policies and specs
503 +++++++++++++++++++++++++++
505 In previous Ganeti versions, an instance creation request was not
506 limited on the minimum size and on the maximum size just by the cluster
507 resources. As such, any policy could be implemented only in third-party
508 clients (RAPI clients, or shell wrappers over ``gnt-*``
509 tools). Furthermore, calculating cluster capacity via ``hspace`` again
510 required external input with regards to instance sizes.
512 In order to improve these workflows and to allow for example better
513 per-node group differentiation, we introduced instance specs, which
516 - minimum instance disk size, disk count, memory size, cpu count
517 - maximum values for the above metrics
518 - and “standard” values (used in ``hspace`` to calculate the standard
521 The minimum/maximum values can be also customised at node-group level,
522 for example allowing more powerful hardware to support bigger instance
525 Beside the instance specs, there are a few other settings belonging to
526 the instance policy framework. It is possible now to customise, per
527 cluster and node-group:
529 - the list of allowed disk templates
530 - the maximum ratio of VCPUs per PCPUs (to control CPU oversubscription)
531 - the maximum ratio of instance to spindles (see below for more
532 information) for local storage
534 All these together should allow all tools that talk to Ganeti to know
535 what are the ranges of allowed values for instances and the
536 over-subscription that is allowed.
538 For the VCPU/PCPU ratio, we already have the VCPU configuration from the
539 instance configuration, and the physical CPU configuration from the
540 node. For the spindle ratios however, we didn't track before these
541 values, so new parameters have been added:
543 - a new node parameter ``spindle_count``, defaults to 1, customisable at
544 node group or node level
545 - at new backend parameter (for instances), ``spindle_use`` defaults to 1
547 Note that spindles in this context doesn't need to mean actual
548 mechanical hard-drives; it's just a relative number for both the node
549 I/O capacity and instance I/O consumption.
551 Instance migration behaviour
552 ++++++++++++++++++++++++++++
554 While live-migration is in general desirable over failover, it is
555 possible that for some workloads it is actually worse, due to the
556 variable time of the “suspend” phase during live migration.
558 To allow the tools to work consistently over such instances (without
559 having to hard-code instance names), a new backend parameter
560 ``always_failover`` has been added to control the migration/failover
561 behaviour. When set to True, all migration requests for an instance will
562 instead fall-back to failover.
564 Instance memory ballooning
565 ++++++++++++++++++++++++++
567 Initial support for memory ballooning has been added. The memory for an
568 instance is no longer fixed (backend parameter ``memory``), but instead
569 can vary between minimum and maximum values (backend parameters
570 ``minmem`` and ``maxmem``). Currently we only change an instance's
573 - live migrating or failing over and instance and the target node
574 doesn't have enough memory
575 - user requests changing the memory via ``gnt-instance modify
581 In order to control the use of specific CPUs by instance, support for
582 controlling CPU pinning has been added for the Xen, HVM and LXC
583 hypervisors. This is controlled by a new hypervisor parameter
584 ``cpu_mask``; details about possible values for this are in the
585 :manpage:`gnt-instance(8)`. Note that use of the most specific (precise
586 VCPU-to-CPU mapping) form will work well only when all nodes in your
587 cluster have the same amount of CPUs.
592 Another area in which Ganeti was not customisable were the parameters
593 used for storage configuration, e.g. how many stripes to use for LVM,
594 DRBD resync configuration, etc.
596 To improve this area, we've added disks parameters, which are
597 customisable at cluster and node group level, and which allow to
598 specify various parameters for disks (DRBD has the most parameters
599 currently), for example:
601 - DRBD resync algorithm and parameters (e.g. speed)
602 - the default VG for meta-data volumes for DRBD
603 - number of stripes for LVM (plain disk template)
606 These parameters can be modified via ``gnt-cluster modify -D …`` and
607 ``gnt-group modify -D …``, and are used at either instance creation (in
608 case of LVM stripes, for example) or at disk “activation” time
611 Rados block device support
612 ++++++++++++++++++++++++++
614 A Rados (http://ceph.com/wiki/Rbd) storage backend has been added,
615 denoted by the ``rbd`` disk template type. This is considered
616 experimental, feedback is welcome. For details on configuring it, see
617 the :doc:`install` document and the :manpage:`gnt-cluster(8)` man page.
622 The existing master IP functionality works well only in simple setups (a
623 single network shared by all nodes); however, if nodes belong to
624 different networks, then the ``/32`` setup and lack of routing
625 information is not enough.
627 To allow the master IP to function well in more complex cases, the
628 system was reworked as follows:
630 - a master IP netmask setting has been added
631 - the master IP activation/turn-down code was moved from the node daemon
633 - whether to run the Ganeti-supplied master IP script or a user-supplied
634 on is a ``gnt-cluster init`` setting
636 Details about the location of the standard and custom setup scripts are
637 in the man page :manpage:`gnt-cluster(8)`; for information about the
638 setup script protocol, look at the Ganeti-supplied script.
643 The `SPICE <http://www.linux-kvm.org/page/SPICE>`_ support has been
646 It is now possible to use TLS-protected connections, and when renewing
647 or changing the cluster certificates (via ``gnt-cluster renew-crypto``,
648 it is now possible to specify spice or spice CA certificates. Also, it
649 is possible to configure a password for SPICE sessions via the
650 hypervisor parameter ``spice_password_file``.
652 There are also new parameters to control the compression and streaming
653 options (e.g. ``spice_image_compression``, ``spice_streaming_video``,
654 etc.). For details, see the man page :manpage:`gnt-instance(8)` and look
655 for the spice parameters.
657 Lastly, it is now possible to see the SPICE connection information via
658 ``gnt-instance console``.
663 A new tool (``tools/ovfconverter``) has been added that supports
664 conversion between Ganeti and the `Open Virtualization Format
665 <http://en.wikipedia.org/wiki/Open_Virtualization_Format>`_ (both to and
668 This relies on the ``qemu-img`` tool to convert the disk formats, so the
669 actual compatibility with other virtualization solutions depends on it.
674 The configuration query daemon (``ganeti-confd``) is now optional, and
675 has been rewritten in Haskell; whether to use the daemon at all, use the
676 Python (default) or the Haskell version is selectable at configure time
677 via the ``--enable-confd`` parameter, which can take one of the
678 ``haskell``, ``python`` or ``no`` values. If not used, disabling the
679 daemon will result in a smaller footprint; for larger systems, we
680 welcome feedback on the Haskell version which might become the default
683 If you want to use ``gnt-node list-drbd`` you need to have the Haskell
684 daemon running. The Python version doesn't implement the new call.
687 User interface changes
688 ~~~~~~~~~~~~~~~~~~~~~~
690 We have replaced the ``--disks`` option of ``gnt-instance
691 replace-disks`` with a more flexible ``--disk`` option, which allows
692 adding and removing disks at arbitrary indices (Issue 188). Furthermore,
693 disk size and mode can be changed upon recreation (via ``gnt-instance
694 recreate-disks``, which accepts the same ``--disk`` option).
696 As many people are used to a ``show`` command, we have added that as an
697 alias to ``info`` on all ``gnt-*`` commands.
699 The ``gnt-instance grow-disk`` command has a new mode in which it can
700 accept the target size of the disk, instead of the delta; this can be
701 more safe since two runs in absolute mode will be idempotent, and
702 sometimes it's also easier to specify the desired size directly.
704 Also the handling of instances with regard to offline secondaries has
705 been improved. Instance operations should not fail because one of it's
706 secondary nodes is offline, even though it's safe to proceed.
708 A new command ``list-drbd`` has been added to the ``gnt-node`` script to
709 support debugging of DRBD issues on nodes. It provides a mapping of DRBD
710 minors to instance name.
715 RAPI coverage has improved, with (for example) new resources for
716 recreate-disks, node power-cycle, etc.
721 There is partial support for ``xl`` in the Xen hypervisor; feedback is
724 Python 2.7 is better supported, and after Ganeti 2.6 we will investigate
725 whether to still support Python 2.4 or move to Python 2.6 as minimum
728 Support for Fedora has been slightly improved; the provided example
729 init.d script should work better on it and the INSTALL file should
730 document the needed dependencies.
735 The deprecated ``QueryLocks`` LUXI request has been removed. Use
736 ``Query(what=QR_LOCK, ...)`` instead.
738 The LUXI requests :pyeval:`luxi.REQ_QUERY_JOBS`,
739 :pyeval:`luxi.REQ_QUERY_INSTANCES`, :pyeval:`luxi.REQ_QUERY_NODES`,
740 :pyeval:`luxi.REQ_QUERY_GROUPS`, :pyeval:`luxi.REQ_QUERY_EXPORTS` and
741 :pyeval:`luxi.REQ_QUERY_TAGS` are deprecated and will be removed in a
742 future version. :pyeval:`luxi.REQ_QUERY` should be used instead.
744 RAPI client: ``CertificateError`` now derives from
745 ``GanetiApiError``. This should make it more easy to handle Ganeti
748 Deprecation warnings due to PyCrypto/paramiko import in
749 ``tools/setup-ssh`` have been silenced, as usually they are safe; please
750 make sure to run an up-to-date paramiko version, if you use this tool.
752 The QA scripts now depend on Python 2.5 or above (the main code base
753 still works with Python 2.4).
755 The configuration file (``config.data``) is now written without
756 indentation for performance reasons; if you want to edit it, it can be
757 re-formatted via ``tools/fmtjson``.
759 A number of bugs has been fixed in the cluster merge tool.
761 ``x509`` certification verification (used in import-export) has been
762 changed to allow the same clock skew as permitted by the cluster
763 verification. This will remove some rare but hard to diagnose errors in
770 *(Released Thu, 19 Jul 2012)*
772 Very few changes from rc4 to the final release, only bugfixes:
774 - integrated fixes from release 2.5.2 (fix general boot flag for KVM
775 instance, fix CDROM booting for KVM instances)
776 - fixed node group modification of node parameters
777 - fixed issue in LUClusterVerifyGroup with multi-group clusters
778 - fixed generation of bash completion to ensure a stable ordering
785 *(Released Fri, 13 Jul 2012)*
787 Third release candidate for 2.6. The following changes were done from
790 - Fixed ``UpgradeConfig`` w.r.t. to disk parameters on disk objects.
791 - Fixed an inconsistency in the LUXI protocol with the provided
792 arguments (NOT backwards compatible)
793 - Fixed a bug with node groups ipolicy where ``min`` was greater than
794 the cluster ``std`` value
795 - Implemented a new ``gnt-node list-drbd`` call to list DRBD minors for
796 easier instance debugging on nodes (requires ``hconfd`` to work)
802 *(Released Tue, 03 Jul 2012)*
804 Second release candidate for 2.6. The following changes were done from
807 - Fixed ``gnt-cluster verify`` regarding ``master-ip-script`` on non
809 - Fixed a RAPI regression on missing beparams/memory
810 - Fixed redistribution of files on offline nodes
811 - Added possibility to run activate-disks even though secondaries are
812 offline. With this change it relaxes also the strictness on some other
813 commands which use activate disks internally:
814 * ``gnt-instance start|reboot|rename|backup|export``
815 - Made it possible to remove safely an instance if its secondaries are
817 - Made it possible to reinstall even though secondaries are offline
823 *(Released Mon, 25 Jun 2012)*
825 First release candidate for 2.6. The following changes were done from
828 - Fixed bugs with disk parameters and ``rbd`` templates as well as
830 - Made ``gnt-instance modify`` more consistent regarding new NIC/Disk
831 behaviour. It supports now the modify operation
832 - ``hcheck`` implemented to analyze cluster health and possibility of
833 improving health by rebalance
834 - ``hbal`` has been improved in dealing with split instances
840 *(Released Mon, 11 Jun 2012)*
842 Second beta release of 2.6. The following changes were done from beta2
845 - Fixed ``daemon-util`` with non-root user models
846 - Fixed creation of plain instances with ``--no-wait-for-sync``
847 - Fix wrong iv_names when running ``cfgupgrade``
848 - Export more information in RAPI group queries
849 - Fixed bug when changing instance network interfaces
850 - Extended burnin to do NIC changes
851 - query: Added ``<``, ``>``, ``<=``, ``>=`` comparison operators
852 - Changed default for DRBD barriers
853 - Fixed DRBD error reporting for syncer rate
854 - Verify the options on disk parameters
856 And of course various fixes to documentation and improved unittests and
863 *(Released Wed, 23 May 2012)*
865 First beta release of 2.6. The following changes were done from beta1 to
868 - integrated patch for distributions without ``start-stop-daemon``
869 - adapted example init.d script to work on Fedora
870 - fixed log handling in Haskell daemons
871 - adapted checks in the watcher for pycurl linked against libnss
872 - add partial support for ``xl`` instead of ``xm`` for Xen
873 - fixed a type issue in cluster verification
874 - fixed ssconf handling in the Haskell code (was breaking confd in IPv6
877 Plus integrated fixes from the 2.5 branch:
879 - fixed ``kvm-ifup`` to use ``/bin/bash``
880 - fixed parallel build failures
881 - KVM live migration when using a custom keymap
887 *(Released Tue, 24 Jul 2012)*
889 A small bugfix release, with no new features:
891 - fixed bash-isms in kvm-ifup, for compatibility with systems which use a
892 different default shell (e.g. Debian, Ubuntu)
893 - fixed KVM startup and live migration with a custom keymap (fixes Issue
894 243 and Debian bug #650664)
895 - fixed compatibility with KVM versions that don't support multiple boot
896 devices (fixes Issue 230 and Debian bug #624256)
898 Additionally, a few fixes were done to the build system (fixed parallel
899 build failures) and to the unittests (fixed race condition in test for
900 FileID functions, and the default enable/disable mode for QA test is now
907 *(Released Fri, 11 May 2012)*
909 A small bugfix release.
911 The main issues solved are on the topic of compatibility with newer LVM
914 - fixed parsing of ``lv_attr`` field
915 - adapted to new ``vgreduce --removemissing`` behaviour where sometimes
916 the ``--force`` flag is needed
918 Also on the topic of compatibility, ``tools/lvmstrap`` has been changed
919 to accept kernel 3.x too (was hardcoded to 2.6.*).
921 A regression present in 2.5.0 that broke handling (in the gnt-* scripts)
922 of hook results and that also made display of other errors suboptimal
923 was fixed; the code behaves now like 2.4 and earlier.
925 Another change in 2.5, the cleanup of the OS scripts environment, is too
926 aggressive: it removed even the ``PATH`` variable, which requires the OS
927 scripts to *always* need to export it. Since this is a bit too strict,
928 we now export a minimal PATH, the same that we export for hooks.
930 The fix for issue 201 (Preserve bridge MTU in KVM ifup script) was
931 integrated into this release.
933 Finally, a few other miscellaneous changes were done (no new features,
934 just small improvements):
936 - Fix ``gnt-group --help`` display
937 - Fix hardcoded Xen kernel path
938 - Fix grow-disk handling of invalid units
939 - Update synopsis for ``gnt-cluster repair-disk-sizes``
940 - Accept both PUT and POST in noded (makes future upgrade to 2.6 easier)
946 *(Released Thu, 12 Apr 2012)*
948 Incompatible/important changes and bugfixes
949 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
951 - The default of the ``/2/instances/[instance_name]/rename`` RAPI
952 resource's ``ip_check`` parameter changed from ``True`` to ``False``
953 to match the underlying LUXI interface.
954 - The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
955 body parameters, see :doc:`RAPI documentation <rapi>`. The server does
956 not maintain backwards-compatibility as the underlying operation
957 changed in an incompatible way. The RAPI client can talk to old
958 servers, but it needs to be told so as the return value changed.
959 - When creating file-based instances via RAPI, the ``file_driver``
960 parameter no longer defaults to ``loop`` and must be specified.
961 - The deprecated ``bridge`` NIC parameter is no longer supported. Use
963 - Support for the undocumented and deprecated RAPI instance creation
964 request format version 0 has been dropped. Use version 1, supported
965 since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
966 - Pyparsing 1.4.6 or above is required, see :doc:`installation
967 documentation <install>`.
968 - The "cluster-verify" hooks are now executed per group by the
969 ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
970 if you just run ``gnt-cluster verify``, which generates one opcode per
972 - The environment as passed to the OS scripts is cleared, and thus no
973 environment variables defined in the node daemon's environment will be
974 inherited by the scripts.
975 - The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
977 - :doc:`New iallocator modes <design-multi-reloc>` have been added to
978 support operations involving multiple node groups.
979 - Offline nodes are ignored when failing over an instance.
980 - Support for KVM version 1.0, which changed the version reporting format
982 - TCP/IP ports used by DRBD disks are returned to a pool upon instance
984 - ``Makefile`` is now compatible with Automake 1.11.2
985 - Includes all bugfixes made in the 2.4 series
990 - The ganeti-htools project has been merged into the ganeti-core source
991 tree and will be built as part of Ganeti (see :doc:`install-quick`).
992 - Implemented support for :doc:`shared storage <design-shared-storage>`.
993 - Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
994 GPT-style partition tables (requires `parted
995 <http://www.gnu.org/s/parted/>`_).
996 - Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
997 - Allowed adding tags on instance creation.
998 - Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
999 - Allow instances to be started in a paused state, enabling the user to
1000 see the complete console output on boot using the console.
1001 - Added new hypervisor flag to control default reboot behaviour
1002 (``reboot_behavior``).
1003 - Added support for KVM keymaps (hypervisor parameter ``keymap``).
1004 - Improved out-of-band management support:
1006 - Added ``gnt-node health`` command reporting the health status of
1008 - Added ``gnt-node power`` command to manage power status of nodes.
1009 - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
1011 - Instance migration can fall back to failover if instance is not
1013 - Filters can be used when listing nodes, instances, groups and locks;
1014 see :manpage:`ganeti(7)` manpage.
1015 - Added post-execution status as variables to :doc:`hooks <hooks>`
1017 - Instance tags are exported/imported together with the instance.
1018 - When given an explicit job ID, ``gnt-job info`` will work for archived
1020 - Jobs can define dependencies on other jobs (not yet supported via
1021 RAPI or command line, but used by internal commands and usable via
1024 - Lock monitor (``gnt-debug locks``) shows jobs waiting for
1027 - Instance failover is now available as a RAPI resource
1028 (``/2/instances/[instance_name]/failover``).
1029 - ``gnt-instance info`` defaults to static information if primary node
1031 - Opcodes have a new ``comment`` attribute.
1032 - Added basic SPICE support to KVM hypervisor.
1033 - ``tools/ganeti-listrunner`` allows passing of arguments to executable.
1035 Node group improvements
1036 ~~~~~~~~~~~~~~~~~~~~~~~
1038 - ``gnt-cluster verify`` has been modified to check groups separately,
1039 thereby improving performance.
1040 - Node group support has been added to ``gnt-cluster verify-disks``,
1041 which now operates per node group.
1042 - Watcher has been changed to work better with node groups.
1044 - One process and state file per node group.
1045 - Slow watcher in one group doesn't block other group's watcher.
1047 - Added new command, ``gnt-group evacuate``, to move all instances in a
1048 node group to other groups.
1049 - Added ``gnt-instance change-group`` to move an instance to another
1051 - ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
1052 per-group operations.
1053 - Node groups can be tagged.
1054 - Some operations switch from an exclusive to a shared lock as soon as
1056 - Instance's primary and secondary nodes' groups are now available as
1057 query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
1058 and ``snodes.group.uuid``).
1063 - Numerous updates to documentation and manpages.
1065 - :doc:`RAPI <rapi>` documentation now has detailed parameter
1067 - Some opcode/job results are now also documented, see :doc:`RAPI
1070 - A lockset's internal lock is now also visible in lock monitor.
1071 - Log messages from job queue workers now contain information about the
1072 opcode they're processing.
1073 - ``gnt-instance console`` no longer requires the instance lock.
1074 - A short delay when waiting for job changes reduces the number of LUXI
1075 requests significantly.
1076 - DRBD metadata volumes are overwritten with zeros during disk creation.
1077 - Out-of-band commands no longer acquire the cluster lock in exclusive
1079 - ``devel/upload`` now uses correct permissions for directories.
1085 *(Released Fri, 23 Mar 2012)*
1087 This was the sixth release candidate of the 2.5 series.
1093 *(Released Mon, 9 Jan 2012)*
1095 This was the fifth release candidate of the 2.5 series.
1101 *(Released Thu, 27 Oct 2011)*
1103 This was the fourth release candidate of the 2.5 series.
1109 *(Released Wed, 26 Oct 2011)*
1111 This was the third release candidate of the 2.5 series.
1117 *(Released Tue, 18 Oct 2011)*
1119 This was the second release candidate of the 2.5 series.
1125 *(Released Tue, 4 Oct 2011)*
1127 This was the first release candidate of the 2.5 series.
1133 *(Released Wed, 31 Aug 2011)*
1135 This was the third beta release of the 2.5 series.
1141 *(Released Mon, 22 Aug 2011)*
1143 This was the second beta release of the 2.5 series.
1149 *(Released Fri, 12 Aug 2011)*
1151 This was the first beta release of the 2.5 series.
1157 *(Released Thu, 27 Oct 2011)*
1159 - Fixed bug when parsing command line parameter values ending in
1161 - Fixed assertion error after unclean master shutdown
1162 - Disable HTTP client pool for RPC, significantly reducing memory usage
1164 - Fixed queue archive creation with wrong permissions
1170 *(Released Tue, 23 Aug 2011)*
1174 - Fixed documentation for importing with ``--src-dir`` option
1175 - Fixed a bug in ``ensure-dirs`` with queue/archive permissions
1176 - Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
1182 *(Released Fri, 5 Aug 2011)*
1184 Many bug-fixes and a few small features:
1186 - Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
1187 issues when you tried to add an instance with two MAC addresses in one
1189 - KVM: fixed per-instance stored UID value
1190 - KVM: configure bridged NICs at migration start
1191 - KVM: Fix a bug where instance will not start with never KVM versions
1193 - Added OS search path to ``gnt-cluster info``
1194 - Fixed an issue with ``file_storage_dir`` where you were forced to
1195 provide an absolute path, but the documentation states it is a
1196 relative path, the documentation was right
1197 - Added a new parameter to instance stop/start called ``--no-remember``
1198 that will make the state change to not be remembered
1199 - Implemented ``no_remember`` at RAPI level
1200 - Improved the documentation
1201 - Node evacuation: don't call IAllocator if node is already empty
1202 - Fixed bug in DRBD8 replace disks on current nodes
1203 - Fixed bug in recreate-disks for DRBD instances
1204 - Moved assertion checking locks in ``gnt-instance replace-disks``
1205 causing it to abort with not owning the right locks for some situation
1206 - Job queue: Fixed potential race condition when cancelling queued jobs
1207 - Fixed off-by-one bug in job serial generation
1208 - ``gnt-node volumes``: Fix instance names
1209 - Fixed aliases in bash completion
1210 - Fixed a bug in reopening log files after being sent a SIGHUP
1211 - Added a flag to burnin to allow specifying VCPU count
1212 - Bugfixes to non-root Ganeti configuration
1218 *(Released Thu, 12 May 2011)*
1220 Many bug-fixes and a few new small features:
1222 - Fixed a bug related to log opening failures
1223 - Fixed a bug in instance listing with orphan instances
1224 - Fixed a bug which prevented resetting the cluster-level node parameter
1225 ``oob_program`` to the default
1226 - Many fixes related to the ``cluster-merge`` tool
1227 - Fixed a race condition in the lock monitor, which caused failures
1228 during (at least) creation of many instances in parallel
1229 - Improved output for gnt-job info
1230 - Removed the quiet flag on some ssh calls which prevented debugging
1232 - Improved the N+1 failure messages in cluster verify by actually
1233 showing the memory values (needed and available)
1234 - Increased lock attempt timeouts so that when executing long operations
1235 (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
1236 too early and thus prevent the use of the 'fair' mechanism
1237 - Changed instance query data (``gnt-instance info``) to not acquire
1238 locks unless needed, thus allowing its use on locked instance if only
1239 static information is asked for
1240 - Improved behaviour with filesystems that do not support rename on an
1242 - Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
1243 kept locks on all nodes during the wipe, which is unneeded
1244 - Fixed ``gnt-watcher`` handling of errors during hooks execution
1245 - Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
1246 10GiB) which caused the wipe to fail right at the end in some cases
1247 - Fixed master IP activation when doing master failover with no-voting
1248 - Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
1249 the master node itself
1250 - Fixed potential data-loss in under disk full conditions, where Ganeti
1251 wouldn't check correctly the return code and would consider
1252 partially-written files 'correct'
1253 - Fixed bug related to multiple VGs and DRBD disk replacing
1254 - Added new disk parameter ``metavg`` that allows placement of the meta
1255 device for DRBD in a different volume group
1256 - Fixed error handling in the node daemon when the system libc doesn't
1257 have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
1258 - Fixed lock release during replace-disks, which kept cluster-wide locks
1259 when doing disk replaces with an iallocator script
1260 - Added check for missing bridges in cluster verify
1261 - Handle EPIPE errors while writing to the terminal better, so that
1262 piping the output to e.g. ``less`` doesn't cause a backtrace
1263 - Fixed rare case where a ^C during Luxi calls could have been
1264 interpreted as server errors, instead of simply terminating
1265 - Fixed a race condition in LUGroupAssignNodes (``gnt-group
1267 - Added a few more parameters to the KVM hypervisor, allowing a second
1268 CDROM, custom disk type for CDROMs and a floppy image
1269 - Removed redundant message in instance rename when the name is given
1271 - Added option to ``gnt-instance recreate-disks`` to allow creating the
1272 disks on new nodes, allowing recreation when the original instance
1273 nodes are completely gone
1274 - Added option when converting disk templates to DRBD to skip waiting
1275 for the resync, in order to make the instance available sooner
1276 - Added two new variables to the OS scripts environment (containing the
1278 - Made the root_path and optional parameter for the xen-pvm hypervisor,
1279 to allow use of ``pvgrub`` as bootloader
1280 - Changed the instance memory modifications to only check out-of-memory
1281 conditions on memory increases, and turned the secondary node warnings
1282 into errors (they can still be overridden via ``--force``)
1283 - Fixed the handling of a corner case when the Python installation gets
1284 corrupted (e.g. a bad disk) while ganeti-noded is running and we try
1285 to execute a command that doesn't exist
1286 - Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
1287 node of the instance returned failures during instance shutdown; this
1288 adds the option ``--ignore-consistency`` to gnt-instance move
1290 And as usual, various improvements to the error messages, documentation
1297 *(Released Wed, 09 Mar 2011)*
1299 Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
1300 the RAPI users file if run twice (even with ``--dry-run``).
1302 The release fixes that bug (nothing else changed).
1308 *(Released Mon, 07 Mar 2011)*
1310 Final 2.4.0 release. Just a few small fixes:
1312 - Fixed RAPI node evacuate
1313 - Fixed the kvm-ifup script
1314 - Fixed internal error handling for special job cases
1315 - Updated man page to specify the escaping feature for options
1321 *(Released Mon, 28 Feb 2011)*
1323 A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
1324 that this feature wiped the disks of the wrong instance, leading to loss
1329 - Fixed title of query field containing instance name
1330 - Expanded the glossary in the documentation
1331 - Fixed one unittest (internal issue)
1337 *(Released Mon, 21 Feb 2011)*
1339 A number of bug fixes plus just a couple functionality changes.
1341 On the user-visible side, the ``gnt-* list`` command output has changed
1342 with respect to "special" field states. The current rc1 style of display
1343 can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
1344 the default output mode special fields states are displayed as follows:
1346 - Offline resource: ``*``
1347 - Unavailable/not applicable: ``-``
1348 - Data missing (RPC failure): ``?``
1349 - Unknown field: ``??``
1351 Another user-visible change is the addition of ``--force-join`` to
1356 - ``tools/cluster-merge`` has seen many fixes and is now enabled again
1357 - Fixed regression in RAPI/instance reinstall where all parameters were
1358 required (instead of optional)
1359 - Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
1360 - Fixed iallocator usage (offline nodes were not considered offline)
1361 - Fixed ``gnt-node list`` with respect to non-vm_capable nodes
1362 - Fixed hypervisor and OS parameter validation with respect to
1363 non-vm_capable nodes
1364 - Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
1366 - Fixed ``tools/listrunner`` with respect to agent-based usage
1372 *(Released Fri, 4 Feb 2011)*
1374 Many changes and fixes since the beta1 release. While there were some
1375 internal changes, the code has been mostly stabilised for the RC
1378 Note: the dumb allocator was removed in this release, as it was not kept
1379 up-to-date with the IAllocator protocol changes. It is recommended to
1380 use the ``hail`` command from the ganeti-htools package.
1382 Note: the 2.4 and up versions of Ganeti are not compatible with the
1383 0.2.x branch of ganeti-htools. You need to upgrade to
1384 ganeti-htools-0.3.0 (or later).
1386 Regressions fixed from 2.3
1387 ~~~~~~~~~~~~~~~~~~~~~~~~~~
1389 - Fixed the ``gnt-cluster verify-disks`` command
1390 - Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
1392 - Fixed disk adoption breakage
1393 - Fixed wrong headers in instance listing for field aliases
1398 - Fixed corner case in KVM handling of NICs
1399 - Fixed many cases of wrong handling of non-vm_capable nodes
1400 - Fixed a bug where a missing instance symlink was not possible to
1401 recreate with any ``gnt-*`` command (now ``gnt-instance
1402 activate-disks`` does it)
1403 - Fixed the volume group name as reported by ``gnt-cluster
1405 - Increased timeouts for the import-export code, hopefully leading to
1406 fewer aborts due network or instance timeouts
1407 - Fixed bug in ``gnt-node list-storage``
1408 - Fixed bug where not all daemons were started on cluster
1409 initialisation, but only at the first watcher run
1410 - Fixed many bugs in the OOB implementation
1411 - Fixed watcher behaviour in presence of instances with offline
1413 - Fixed instance list output for instances running on the wrong node
1414 - a few fixes to the cluster-merge tool, but it still cannot merge
1415 multi-node groups (currently it is not recommended to use this tool)
1421 - Improved network configuration for the KVM hypervisor
1422 - Added e1000 as a supported NIC for Xen-HVM
1423 - Improved the lvmstrap tool to also be able to use partitions, as
1424 opposed to full disks
1425 - Improved speed of disk wiping (the cluster parameter
1426 ``prealloc_wipe_disks``, so that it has a low impact on the total time
1427 of instance creations
1428 - Added documentation for the OS parameters
1429 - Changed ``gnt-instance deactivate-disks`` so that it can work if the
1430 hypervisor is not responding
1431 - Added display of blacklisted and hidden OS information in
1432 ``gnt-cluster info``
1433 - Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
1434 NIC and node parameters, which might create problems with currently
1435 invalid (but undetected) configuration files, but prevents validation
1436 failures when unrelated parameters are modified
1437 - Changed cluster initialisation to wait for the master daemon to become
1439 - Expanded the RAPI interface:
1441 - Added config redistribution resource
1442 - Added activation/deactivation of instance disks
1443 - Added export of console information
1445 - Implemented log file reopening on SIGHUP, which allows using
1446 logrotate(8) for the Ganeti log files
1447 - Added a basic OOB helper script as an example
1453 *(Released Fri, 14 Jan 2011)*
1458 - Fixed timezone issues when formatting timestamps
1459 - Added support for node groups, available via ``gnt-group`` and other
1461 - Added out-of-band framework and management, see :doc:`design
1462 document <design-oob>`
1463 - Removed support for roman numbers from ``gnt-node list`` and
1464 ``gnt-instance list``.
1465 - Allowed modification of master network interface via ``gnt-cluster
1466 modify --master-netdev``
1467 - Accept offline secondaries while shutting down instance disks
1468 - Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
1469 - Added support for multiple LVM volume groups
1470 - Avoid sorting nodes for ``gnt-node list`` if specific nodes are
1472 - Added commands to list available fields:
1474 - ``gnt-node list-fields``
1475 - ``gnt-group list-fields``
1476 - ``gnt-instance list-fields``
1478 - Updated documentation and man pages
1483 - Moved ``rapi_users`` file into separate directory, now named
1484 ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
1486 - Added new tool for running commands on many machines,
1487 ``tools/ganeti-listrunner``
1488 - Implemented more verbose result in ``OpInstanceConsole`` opcode, also
1489 improving the ``gnt-instance console`` output
1490 - Allowed customisation of disk index separator at ``configure`` time
1491 - Export node group allocation policy to :doc:`iallocator <iallocator>`
1492 - Added support for non-partitioned md disks in ``lvmstrap``
1493 - Added script to gracefully power off KVM instances
1494 - Split ``utils`` module into smaller parts
1495 - Changed query operations to return more detailed information, e.g.
1496 whether an information is unavailable due to an offline node. To use
1497 this new functionality, the LUXI call ``Query`` must be used. Field
1498 information is now stored by the master daemon and can be retrieved
1499 using ``QueryFields``. Instances, nodes and groups can also be queried
1500 using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
1501 exposed via RAPI). The following commands make use of this
1502 infrastructure change:
1504 - ``gnt-group list``
1505 - ``gnt-group list-fields``
1507 - ``gnt-node list-fields``
1508 - ``gnt-instance list``
1509 - ``gnt-instance list-fields``
1510 - ``gnt-debug locks``
1515 - New RAPI resources (see :doc:`rapi`):
1519 - ``/2/groups/[group_name]``
1520 - ``/2/groups/[group_name]/assign-nodes``
1521 - ``/2/groups/[group_name]/modify``
1522 - ``/2/groups/[group_name]/rename``
1523 - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
1527 - Implemented ``no_install`` for instance creation
1528 - Implemented OS parameters for instance reinstallation, allowing
1529 use of special settings on reinstallation (e.g. for preserving data)
1534 - Added IPv6 support in import/export
1535 - Pause DRBD synchronization while wiping disks on instance creation
1536 - Updated unittests and QA scripts
1537 - Improved network parameters passed to KVM
1538 - Converted man pages from docbook to reStructuredText
1544 *(Released Mon, 20 Dec 2010)*
1546 Released version 2.3.1~rc1 without any changes.
1552 *(Released Wed, 1 Dec 2010)*
1554 - impexpd: Disable OpenSSL compression in socat if possible (backport
1555 from master, commit e90739d625b, see :doc:`installation guide
1556 <install-quick>` for details)
1557 - Changed unittest coverage report to exclude test scripts
1558 - Added script to check version format
1564 *(Released Wed, 1 Dec 2010)*
1566 Released version 2.3.0~rc1 without any changes.
1572 *(Released Fri, 19 Nov 2010)*
1574 A number of bugfixes and documentation updates:
1576 - Update ganeti-os-interface documentation
1577 - Fixed a bug related to duplicate MACs or similar items which should be
1579 - Fix breakage in OS state modify
1580 - Reinstall instance: disallow offline secondaries (fixes bug related to
1581 OS changing but reinstall failing)
1582 - plus all the other fixes between 2.2.1 and 2.2.2
1588 *(Released Tue, 2 Nov 2010)*
1590 - Fixed clearing of the default iallocator using ``gnt-cluster modify``
1591 - Fixed master failover race with watcher
1592 - Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
1594 - Accept previously stopped instance for export with instance removal
1595 - Simplify and extend the environment variables for instance OS scripts
1596 - Added new node flags, ``master_capable`` and ``vm_capable``
1597 - Added optional instance disk wiping prior during allocation. This is a
1598 cluster-wide option and can be set/modified using
1599 ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
1600 - Added IPv6 support, see :doc:`design document <design-2.3>` and
1601 :doc:`install-quick`
1602 - Added a new watcher option (``--ignore-pause``)
1603 - Added option to ignore offline node on instance start/stop
1604 (``--ignore-offline``)
1605 - Allow overriding OS parameters with ``gnt-instance reinstall``
1606 - Added ability to change node's secondary IP address using ``gnt-node
1608 - Implemented privilege separation for all daemons except
1609 ``ganeti-noded``, see ``configure`` options
1610 - Complain if an instance's disk is marked faulty in ``gnt-cluster
1612 - Implemented job priorities (see ``ganeti(7)`` manpage)
1613 - Ignore failures while shutting down instances during failover from
1615 - Exit daemon's bootstrap process only once daemon is ready
1616 - Export more information via ``LUInstanceQuery``/remote API
1617 - Improved documentation, QA and unittests
1618 - RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
1619 restart if the file was created or changed
1620 - Added LUXI protocol version sent with each request and response,
1621 allowing detection of server/client mismatches
1622 - Moved the Python scripts among gnt-* and ganeti-* into modules
1623 - Moved all code related to setting up SSH to an external script,
1625 - Infrastructure changes for node group support in future versions
1631 *(Released Fri, 19 Nov 2010)*
1633 A few small bugs fixed, and some improvements to the build system:
1635 - Fix documentation regarding conversion to drbd
1636 - Fix validation of parameters in cluster modify (``gnt-cluster modify
1638 - Fix error handling in node modify with multiple changes
1639 - Allow remote imports without checked names
1645 *(Released Tue, 19 Oct 2010)*
1647 - Disable SSL session ID cache in RPC client
1653 *(Released Thu, 14 Oct 2010)*
1655 - Fix interaction between Curl/GnuTLS and the Python's HTTP server
1656 (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
1658 - Fix problems with interaction between Curl and Python's HTTP server,
1659 resulting in increased speed in many RPC calls
1660 - Improve our release script to prevent breakage with older aclocal and
1667 *(Released Thu, 7 Oct 2010)*
1669 - Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
1670 value retrieved from master
1671 - Added support for blacklisted or hidden OS definitions
1672 - Added simple lock monitor (accessible via (``gnt-debug locks``)
1673 - Added support for -mem-path in KVM hypervisor abstraction layer
1674 - Allow overriding instance parameters in tool for inter-cluster
1675 instance moves (``tools/move-instance``)
1676 - Improved opcode summaries (e.g. in ``gnt-job list``)
1677 - Improve consistency of OS listing by sorting it
1678 - Documentation updates
1684 *(Released Fri, 8 Oct 2010)*
1686 - Rebuild with a newer autotools version, to fix python 2.6 compatibility
1692 *(Released Mon, 4 Oct 2010)*
1694 - Fixed regression in ``gnt-instance rename``
1700 *(Released Wed, 22 Sep 2010)*
1702 - Fixed OS_VARIANT variable for OS scripts
1703 - Fixed cluster tag operations via RAPI
1704 - Made ``setup-ssh`` exit with non-zero code if an error occurred
1705 - Disabled RAPI CA checks in watcher
1711 *(Released Mon, 23 Aug 2010)*
1713 - Support DRBD versions of the format "a.b.c.d"
1715 - Re-introduce support for usage from multiple threads in RAPI client
1716 - Instance renames and modify via RAPI
1717 - Work around race condition between processing and archival in job
1719 - Mark opcodes following failed one as failed, too
1720 - Job field ``lock_status`` was removed due to difficulties making it
1721 work with the changed job queue in Ganeti 2.2; a better way to monitor
1722 locks is expected for a later 2.2.x release
1723 - Fixed dry-run behaviour with many commands
1724 - Support ``ssh-agent`` again when adding nodes
1725 - Many additional bugfixes
1731 *(Released Fri, 30 Jul 2010)*
1733 Important change: the internal RPC mechanism between Ganeti nodes has
1734 changed from using a home-grown http library (based on the Python base
1735 libraries) to use the PycURL library. This requires that PycURL is
1736 installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
1737 against GnuTLS by default. cURL's support for GnuTLS had known issues
1738 before cURL 7.21.0 and we recommend using the latest cURL release or
1739 linking against OpenSSL. Most other distributions already link PycURL
1740 and cURL against OpenSSL. The command::
1742 python -c 'import pycurl; print pycurl.version'
1744 can be used to determine the libraries PycURL and cURL are linked
1747 Other significant changes:
1749 - Rewrote much of the internals of the job queue, in order to achieve
1750 better parallelism; this decouples job query operations from the job
1751 processing, and it should allow much nicer behaviour of the master
1752 daemon under load, and it also has uncovered some long-standing bugs
1753 related to the job serialisation (now fixed)
1754 - Added a default iallocator setting to the cluster parameters,
1755 eliminating the need to always pass nodes or an iallocator for
1756 operations that require selection of new node(s)
1757 - Added experimental support for the LXC virtualization method
1758 - Added support for OS parameters, which allows the installation of
1759 instances to pass parameter to OS scripts in order to customise the
1761 - Added a hypervisor parameter controlling the migration type (live or
1762 non-live), since hypervisors have various levels of reliability; this
1763 has renamed the 'live' parameter to 'mode'
1764 - Added a cluster parameter ``reserved_lvs`` that denotes reserved
1765 logical volumes, meaning that cluster verify will ignore them and not
1766 flag their presence as errors
1767 - The watcher will now reset the error count for failed instances after
1768 8 hours, thus allowing self-healing if the problem that caused the
1769 instances to be down/fail to start has cleared in the meantime
1770 - Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
1771 check for, and warn, if the drbd module parameter ``usermode_helper``
1772 is not consistent with the cluster-wide setting; this is needed to
1773 make diagnose easier of failed drbd creations
1774 - Started adding base IPv6 support, but this is not yet
1775 enabled/available for use
1776 - Rename operations (cluster, instance) will now return the new name,
1777 which is especially useful if a short name was passed in
1778 - Added support for instance migration in RAPI
1779 - Added a tool to pre-configure nodes for the SSH setup, before joining
1780 them to the cluster; this will allow in the future a simplified model
1781 for node joining (but not yet fully enabled in 2.2); this needs the
1782 paramiko python library
1783 - Fixed handling of name-resolving errors
1784 - Fixed consistency of job results on the error path
1785 - Fixed master-failover race condition when executed multiple times in
1787 - Fixed many bugs related to the job queue (mostly introduced during the
1788 2.2 development cycle, so not all are impacting 2.1)
1789 - Fixed instance migration with missing disk symlinks
1790 - Fixed handling of unknown jobs in ``gnt-job archive``
1791 - And many other small fixes/improvements
1795 - Enhanced both the unittest and the QA coverage
1796 - Switched the opcode validation to a generic model, and extended the
1797 validation to all opcode parameters
1798 - Changed more parts of the code that write shell scripts to use the
1800 - Switched the master daemon to use the asyncore library for the Luxi
1807 *(Released Thu, 17 Jun 2010)*
1809 - Added tool (``move-instance``) and infrastructure to move instances
1810 between separate clusters (see :doc:`separate documentation
1811 <move-instance>` and :doc:`design document <design-2.2>`)
1812 - Added per-request RPC timeout
1813 - RAPI now requires a Content-Type header for requests with a body (e.g.
1814 ``PUT`` or ``POST``) which must be set to ``application/json`` (see
1815 :rfc:`2616` (HTTP/1.1), section 7.2.1)
1816 - ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
1818 - Implemented initial support for running Ganeti daemons as separate
1819 users, see configure-time flags ``--with-user-prefix`` and
1820 ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
1822 - Instances can be removed after export (``gnt-backup export
1823 --remove-instance``)
1824 - Self-signed certificates generated by Ganeti now use a 2048 bit RSA
1825 key (instead of 1024 bit)
1826 - Added new cluster configuration file for cluster domain secret
1827 - Import/export now use SSL instead of SSH
1828 - Added support for showing estimated time when exporting an instance,
1829 see the ``ganeti-os-interface(7)`` manpage and look for
1836 *(Released Tue, 16 Nov 2010)*
1838 Some more bugfixes. Unless critical bugs occur, this will be the last
1841 - Fix case of MAC special-values
1842 - Fix mac checker regex
1843 - backend: Fix typo causing "out of range" error
1844 - Add missing --units in gnt-instance list man page
1850 *(Released Tue, 24 Aug 2010)*
1853 - Don't ignore secondary node silently on non-mirrored disk templates
1855 - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
1856 - Fix usb_mouse parameter breaking with vnc_console (issue 109)
1857 - Properly document the usb_mouse parameter
1858 - Fix path in ganeti-rapi(8) (issue 116)
1859 - Adjust error message when the ganeti user's .ssh directory is
1861 - Add same-node-check when changing the disk template to drbd
1867 *(Released Fri, 16 Jul 2010)*
1870 - Add an option to only select some reboot types during qa/burnin.
1871 (on some hypervisors consequent reboots are not supported)
1872 - Fix infrequent race condition in master failover. Sometimes the old
1873 master ip address would be still detected as up for a short time
1874 after it was removed, causing failover to fail.
1875 - Decrease mlockall warnings when the ctypes module is missing. On
1876 Python 2.4 we support running even if no ctypes module is installed,
1877 but we were too verbose about this issue.
1878 - Fix building on old distributions, on which man doesn't have a
1880 - Fix RAPI not to ignore the MAC address on instance creation
1881 - Implement the old instance creation format in the RAPI client.
1887 *(Released Thu, 01 Jul 2010)*
1889 A small bugfix release:
1890 - Fix disk adoption: broken by strict --disk option checking in 2.1.4
1891 - Fix batch-create: broken in the whole 2.1 series due to a lookup on
1892 a non-existing option
1893 - Fix instance create: the --force-variant option was ignored
1894 - Improve pylint 0.21 compatibility and warnings with Python 2.6
1895 - Fix modify node storage with non-FQDN arguments
1896 - Fix RAPI client to authenticate under Python 2.6 when used
1897 for more than 5 requests needing authentication
1898 - Fix gnt-instance modify -t (storage) giving a wrong error message
1899 when converting a non-shutdown drbd instance to plain
1905 *(Released Fri, 18 Jun 2010)*
1907 A small bugfix release:
1909 - Fix live migration of KVM instances started with older Ganeti
1910 versions which had fewer hypervisor parameters
1911 - Fix gnt-instance grow-disk on down instances
1912 - Fix an error-reporting bug during instance migration
1913 - Better checking of the ``--net`` and ``--disk`` values, to avoid
1914 silently ignoring broken ones
1915 - Fix an RPC error reporting bug affecting, for example, RAPI client
1917 - Fix bug triggered by different API version os-es on different nodes
1918 - Fix a bug in instance startup with custom hvparams: OS level
1919 parameters would fail to be applied.
1920 - Fix the RAPI client under Python 2.6 (but more work is needed to
1921 make it work completely well with OpenSSL)
1922 - Fix handling of errors when resolving names from DNS
1928 *(Released Thu, 3 Jun 2010)*
1930 A medium sized development cycle. Some new features, and some
1931 fixes/small improvements/cleanups.
1933 Significant features
1934 ~~~~~~~~~~~~~~~~~~~~
1936 The node deamon now tries to mlock itself into memory, unless the
1937 ``--no-mlock`` flag is passed. It also doesn't fail if it can't write
1938 its logs, and falls back to console logging. This allows emergency
1939 features such as ``gnt-node powercycle`` to work even in the event of a
1940 broken node disk (tested offlining the disk hosting the node's
1941 filesystem and dropping its memory caches; don't try this at home)
1943 KVM: add vhost-net acceleration support. It can be tested with a new
1944 enough version of the kernel and of qemu-kvm.
1946 KVM: Add instance chrooting feature. If you use privilege dropping for
1947 your VMs you can also now force them to chroot to an empty directory,
1948 before starting the emulated guest.
1950 KVM: Add maximum migration bandwith and maximum downtime tweaking
1951 support (requires a new-enough version of qemu-kvm).
1953 Cluster verify will now warn if the master node doesn't have the master
1954 ip configured on it.
1956 Add a new (incompatible) instance creation request format to RAPI which
1957 supports all parameters (previously only a subset was supported, and it
1958 wasn't possible to extend the old format to accomodate all the new
1959 features. The old format is still supported, and a client can check for
1960 this feature, before using it, by checking for its presence in the
1961 ``features`` RAPI resource.
1963 Now with ancient latin support. Try it passing the ``--roman`` option to
1964 ``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
1965 (requires the python-roman module to be installed, in order to work).
1970 As usual many internal code refactorings, documentation updates, and
1973 - Lots of improvements and cleanups to the experimental Remote API
1974 (RAPI) client library.
1975 - A new unit test suite for the core daemon libraries.
1976 - A fix to creating missing directories makes sure the umask is not
1977 applied anymore. This enforces the same directory permissions
1979 - Better handling terminating daemons with ctrl+c (used when running
1980 them in debugging mode).
1981 - Fix a race condition in live migrating a KVM instance, when stat()
1982 on the old proc status file returned EINVAL, which is an unexpected
1984 - Fixed manpage checking with newer man and utf-8 charachters. But now
1985 you need the en_US.UTF-8 locale enabled to build Ganeti from git.
1991 *(Released Fri, 7 May 2010)*
1993 Fix a bug which prevented untagged KVM instances from starting.
1999 *(Released Fri, 7 May 2010)*
2001 Another release with a long development cycle, during which many
2002 different features were added.
2004 Significant features
2005 ~~~~~~~~~~~~~~~~~~~~
2007 The KVM hypervisor now can run the individual instances as non-root, to
2008 reduce the impact of a VM being hijacked due to bugs in the
2009 hypervisor. It is possible to run all instances as a single (non-root)
2010 user, to manually specify a user for each instance, or to dynamically
2011 allocate a user out of a cluster-wide pool to each instance, with the
2012 guarantee that no two instances will run under the same user ID on any
2015 An experimental RAPI client library, that can be used standalone
2016 (without the other Ganeti libraries), is provided in the source tree as
2017 ``lib/rapi/client.py``. Note this client might change its interface in
2018 the future, as we iterate on its capabilities.
2020 A new command, ``gnt-cluster renew-crypto`` has been added to easily
2021 replace the cluster's certificates and crypto keys. This might help in
2022 case they have been compromised, or have simply expired.
2024 A new disk option for instance creation has been added that allows one
2025 to "adopt" currently existing logical volumes, with data
2026 preservation. This should allow easier migration to Ganeti from
2027 unmanaged (or managed via other software) instances.
2029 Another disk improvement is the possibility to convert between redundant
2030 (DRBD) and plain (LVM) disk configuration for an instance. This should
2031 allow better scalability (starting with one node and growing the
2032 cluster, or shrinking a two-node cluster to one node).
2034 A new feature that could help with automated node failovers has been
2035 implemented: if a node sees itself as offline (by querying the master
2036 candidates), it will try to shutdown (hard) all instances and any active
2037 DRBD devices. This reduces the risk of duplicate instances if an
2038 external script automatically failovers the instances on such nodes. To
2039 enable this, the cluster parameter ``maintain_node_health`` should be
2040 enabled; in the future this option (per the name) will enable other
2041 automatic maintenance features.
2043 Instance export/import now will reuse the original instance
2044 specifications for all parameters; that means exporting an instance,
2045 deleting it and the importing it back should give an almost identical
2046 instance. Note that the default import behaviour has changed from
2047 before, where it created only one NIC; now it recreates the original
2050 Cluster verify has added a few new checks: SSL certificates validity,
2051 /etc/hosts consistency across the cluster, etc.
2056 As usual, many internal changes were done, documentation fixes,
2059 - Fixed cluster initialization with disabled cluster storage (regression
2060 introduced in 2.1.1)
2061 - File-based storage supports growing the disks
2062 - Fixed behaviour of node role changes
2063 - Fixed cluster verify for some corner cases, plus a general rewrite of
2064 cluster verify to allow future extension with more checks
2065 - Fixed log spamming by watcher and node daemon (regression introduced
2067 - Fixed possible validation issues when changing the list of enabled
2069 - Fixed cleanup of /etc/hosts during node removal
2070 - Fixed RAPI response for invalid methods
2071 - Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
2072 - Multiple small improvements to the KVM hypervisor (VNC usage, booting
2073 from ide disks, etc.)
2074 - Allow OS changes without re-installation (to record a changed OS
2075 outside of Ganeti, or to allow OS renames)
2076 - Allow instance creation without OS installation (useful for example if
2077 the OS will be installed manually, or restored from a backup not in
2079 - Implemented option to make cluster ``copyfile`` use the replication
2081 - Added list of enabled hypervisors to ssconf (possibly useful for
2083 - Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
2085 - A partial form of node re-IP is possible via node readd, which now
2086 allows changed node primary IP
2087 - Command line utilities now show an informational message if the job is
2089 - The logs of the master daemon now show the PID/UID/GID of the
2096 *(Released Fri, 12 Mar 2010)*
2098 During the 2.1.0 long release candidate cycle, a lot of improvements and
2099 changes have accumulated with were released later as 2.1.1.
2104 The node evacuate command (``gnt-node evacuate``) was significantly
2105 rewritten, and as such the IAllocator protocol was changed - a new
2106 request type has been added. This unfortunate change during a stable
2107 series is designed to improve performance of node evacuations; on
2108 clusters with more than about five nodes and which are well-balanced,
2109 evacuation should proceed in parallel for all instances of the node
2110 being evacuated. As such, any existing IAllocator scripts need to be
2111 updated, otherwise the above command will fail due to the unknown
2112 request. The provided "dumb" allocator has not been updated; but the
2113 ganeti-htools package supports the new protocol since version 0.2.4.
2115 Another important change is increased validation of node and instance
2116 names. This might create problems in special cases, if invalid host
2117 names are being used.
2119 Also, a new layer of hypervisor parameters has been added, that sits at
2120 OS level between the cluster defaults and the instance ones. This allows
2121 customisation of virtualization parameters depending on the installed
2122 OS. For example instances with OS 'X' may have a different KVM kernel
2123 (or any other parameter) than the cluster defaults. This is intended to
2124 help managing a multiple OSes on the same cluster, without manual
2125 modification of each instance's parameters.
2127 A tool for merging clusters, ``cluster-merge``, has been added in the
2128 tools sub-directory.
2133 - Improved the int/float conversions that should make the code more
2134 robust in face of errors from the node daemons
2135 - Fixed the remove node code in case of internal configuration errors
2136 - Fixed the node daemon behaviour in face of inconsistent queue
2137 directory (e.g. read-only file-system where we can't open the files
2139 - Fixed the behaviour of gnt-node modify for master candidate demotion;
2140 now it either aborts cleanly or, if given the new "auto_promote"
2141 parameter, will automatically promote other nodes as needed
2142 - Fixed compatibility with (unreleased yet) Python 2.6.5 that would
2143 completely prevent Ganeti from working
2144 - Fixed bug for instance export when not all disks were successfully
2146 - Fixed behaviour of node add when the new node is slow in starting up
2148 - Fixed handling of signals in the LUXI client, which should improve
2149 behaviour of command-line scripts
2150 - Added checks for invalid node/instance names in the configuration (now
2151 flagged during cluster verify)
2152 - Fixed watcher behaviour for disk activation errors
2153 - Fixed two potentially endless loops in http library, which led to the
2154 RAPI daemon hanging and consuming 100% CPU in some cases
2155 - Fixed bug in RAPI daemon related to hashed passwords
2156 - Fixed bug for unintended qemu-level bridging of multi-NIC KVM
2158 - Enhanced compatibility with non-Debian OSes, but not using absolute
2159 path in some commands and allowing customisation of the ssh
2160 configuration directory
2161 - Fixed possible future issue with new Python versions by abiding to the
2162 proper use of ``__slots__`` attribute on classes
2163 - Added checks that should prevent directory traversal attacks
2164 - Many documentation fixes based on feedback from users
2169 - Added an "early_release" more for instance replace disks and node
2170 evacuate, where we release locks earlier and thus allow higher
2171 parallelism within the cluster
2172 - Added watcher hooks, intended to allow the watcher to restart other
2173 daemons (e.g. from the ganeti-nbma project), but they can be used of
2174 course for any other purpose
2175 - Added a compile-time disable for DRBD barriers, to increase
2176 performance if the administrator trusts the power supply or the
2177 storage system to not lose writes
2178 - Added the option of using syslog for logging instead of, or in
2179 addition to, Ganeti's own log files
2180 - Removed boot restriction for paravirtual NICs for KVM, recent versions
2181 can indeed boot from a paravirtual NIC
2182 - Added a generic debug level for many operations; while this is not
2183 used widely yet, it allows one to pass the debug value all the way to
2185 - Enhanced the hooks environment for instance moves (failovers,
2186 migrations) where the primary/secondary nodes changed during the
2187 operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
2188 - Enhanced data validations for many user-supplied values; one important
2189 item is the restrictions imposed on instance and node names, which
2190 might reject some (invalid) host names
2191 - Add a configure-time option to disable file-based storage, if it's not
2192 needed; this allows greater security separation between the master
2193 node and the other nodes from the point of view of the inter-node RPC
2195 - Added user notification in interactive tools if job is waiting in the
2196 job queue or trying to acquire locks
2197 - Added log messages when a job is waiting for locks
2198 - Added filtering by node tags in instance operations which admit
2199 multiple instances (start, stop, reboot, reinstall)
2200 - Added a new tool for cluster mergers, ``cluster-merge``
2201 - Parameters from command line which are of the form ``a=b,c=d`` can now
2202 use backslash escapes to pass in values which contain commas,
2203 e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
2205 - For KVM, the instance name is the first parameter passed to KVM, so
2206 that it's more visible in the process list
2212 *(Released Tue, 2 Mar 2010)*
2214 Ganeti 2.1 brings many improvements with it. Major changes:
2216 - Added infrastructure to ease automated disk repairs
2217 - Added new daemon to export configuration data in a cheaper way than
2218 using the remote API
2219 - Instance NICs can now be routed instead of being associated with a
2221 - Improved job locking logic to reduce impact of jobs acquiring multiple
2222 locks waiting for other long-running jobs
2224 In-depth implementation details can be found in the Ganeti 2.1 design
2230 - Added chroot hypervisor
2231 - Added more options to xen-hvm hypervisor (``kernel_path`` and
2233 - Added more options to xen-pvm hypervisor (``use_bootloader``,
2234 ``bootloader_path`` and ``bootloader_args``)
2235 - Added the ``use_localtime`` option for the xen-hvm and kvm
2236 hypervisors, and the default value for this has changed to false (in
2237 2.0 xen-hvm always enabled it)
2238 - Added luxi call to submit multiple jobs in one go
2239 - Added cluster initialization option to not modify ``/etc/hosts``
2241 - Added network interface parameters
2242 - Added dry run mode to some LUs
2243 - Added RAPI resources:
2245 - ``/2/instances/[instance_name]/info``
2246 - ``/2/instances/[instance_name]/replace-disks``
2247 - ``/2/nodes/[node_name]/evacuate``
2248 - ``/2/nodes/[node_name]/migrate``
2249 - ``/2/nodes/[node_name]/role``
2250 - ``/2/nodes/[node_name]/storage``
2251 - ``/2/nodes/[node_name]/storage/modify``
2252 - ``/2/nodes/[node_name]/storage/repair``
2254 - Added OpCodes to evacuate or migrate all instances on a node
2255 - Added new command to list storage elements on nodes (``gnt-node
2256 list-storage``) and modify them (``gnt-node modify-storage``)
2257 - Added new ssconf files with master candidate IP address
2258 (``ssconf_master_candidates_ips``), node primary IP address
2259 (``ssconf_node_primary_ips``) and node secondary IP address
2260 (``ssconf_node_secondary_ips``)
2261 - Added ``ganeti-confd`` and a client library to query the Ganeti
2262 configuration via UDP
2263 - Added ability to run hooks after cluster initialization and before
2265 - Added automatic mode for disk replace (``gnt-instance replace-disks
2267 - Added ``gnt-instance recreate-disks`` to re-create (empty) disks
2268 after catastrophic data-loss
2269 - Added ``gnt-node repair-storage`` command to repair damaged LVM volume
2271 - Added ``gnt-instance move`` command to move instances
2272 - Added ``gnt-cluster watcher`` command to control watcher
2273 - Added ``gnt-node powercycle`` command to powercycle nodes
2274 - Added new job status field ``lock_status``
2275 - Added parseable error codes to cluster verification (``gnt-cluster
2276 verify --error-codes``) and made output less verbose (use
2277 ``--verbose`` to restore previous behaviour)
2278 - Added UUIDs to the main config entities (cluster, nodes, instances)
2279 - Added support for OS variants
2280 - Added support for hashed passwords in the Ganeti remote API users file
2282 - Added option to specify maximum timeout on instance shutdown
2283 - Added ``--no-ssh-init`` option to ``gnt-cluster init``
2284 - Added new helper script to start and stop Ganeti daemons
2285 (``daemon-util``), with the intent to reduce the work necessary to
2286 adjust Ganeti for non-Debian distributions and to start/stop daemons
2288 - Added more unittests
2289 - Fixed critical bug in ganeti-masterd startup
2290 - Removed the configure-time ``kvm-migration-port`` parameter, this is
2291 now customisable at the cluster level for both the KVM and Xen
2292 hypervisors using the new ``migration_port`` parameter
2293 - Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
2294 reinstalling an instance
2295 - Allowed ``@`` in tag names
2296 - Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
2297 - Many documentation updates
2298 - Distribute hypervisor files on ``gnt-cluster redist-conf``
2299 - ``gnt-instance reinstall`` can now reinstall multiple instances
2300 - Updated many command line parameters
2301 - Introduced new OS API version 15
2302 - No longer support a default hypervisor
2303 - Treat virtual LVs as inexistent
2304 - Improved job locking logic to reduce lock contention
2305 - Match instance and node names case insensitively
2306 - Reimplemented bash completion script to be more complete
2313 *(Released Thu, 4 Feb 2010)*
2315 - Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
2316 - Fix a string formatting bug
2317 - Improve safety of the code in some error paths
2318 - Improve data validation in the master of values returned from nodes
2324 *(Released Thu, 17 Dec 2009)*
2326 - Fix security issue due to missing validation of iallocator names; this
2327 allows local and remote execution of arbitrary executables
2328 - Fix failure of gnt-node list during instance removal
2329 - Ship the RAPI documentation in the archive
2335 *(Released Wed, 30 Sep 2009)*
2337 - Fixed many wrong messages
2338 - Fixed a few bugs related to the locking library
2339 - Fixed MAC checking at instance creation time
2340 - Fixed a DRBD parsing bug related to gaps in /proc/drbd
2341 - Fixed a few issues related to signal handling in both daemons and
2343 - Fixed the example startup script provided
2344 - Fixed insserv dependencies in the example startup script (patch from
2346 - Fixed handling of drained nodes in the iallocator framework
2347 - Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
2349 - Fixed error related to invalid job IDs in job polling
2350 - Fixed job/opcode persistence on unclean master shutdown
2351 - Fixed handling of partial job processing after unclean master
2353 - Fixed error reporting from LUs, previously all errors were converted
2354 into execution errors
2355 - Fixed error reporting from burnin
2356 - Decreased significantly the memory usage of the job queue
2357 - Optimised slightly multi-job submission
2358 - Optimised slightly opcode loading
2359 - Backported the multi-job submit framework from the development
2360 branch; multi-instance start and stop should be faster
2361 - Added script to clean archived jobs after 21 days; this will reduce
2362 the size of the queue directory
2363 - Added some extra checks in disk size tracking
2364 - Added an example ethers hook script
2365 - Added a cluster parameter that prevents Ganeti from modifying of
2367 - Added more node information to RAPI responses
2368 - Added a ``gnt-job watch`` command that allows following the ouput of a
2370 - Added a bind-address option to ganeti-rapi
2371 - Added more checks to the configuration verify
2372 - Enhanced the burnin script such that some operations can be retried
2374 - Converted instance reinstall to multi-instance model
2380 *(Released Fri, 7 Aug 2009)*
2382 - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
2383 to allow using the pre-2.0.2 behaviour in activation, if any existing
2384 instances have mismatched disk sizes in the configuration
2385 - Added ``gnt-cluster repair-disk-sizes`` command to check and update
2386 any configuration mismatches for disk sizes
2387 - Added ``gnt-master cluste-failover --no-voting`` to allow master
2388 failover to work on two-node clusters
2389 - Fixed the ``--net`` option of ``gnt-backup import``, which was
2391 - Fixed detection of OS script errors in ``gnt-backup export``
2392 - Fixed exit code of ``gnt-backup export``
2398 *(Released Fri, 17 Jul 2009)*
2400 - Added experimental support for stripped logical volumes; this should
2401 enhance performance but comes with a higher complexity in the block
2402 device handling; stripping is only enabled when passing
2403 ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
2404 affected even in the non-stripped mode
2405 - Improved resiliency against transient failures at the end of DRBD
2406 resyncs, and in general of DRBD resync checks
2407 - Fixed a couple of issues with exports and snapshot errors
2408 - Fixed a couple of issues in instance listing
2409 - Added display of the disk size in ``gnt-instance info``
2410 - Fixed checking for valid OSes in instance creation
2411 - Fixed handling of the "vcpus" parameter in instance listing and in
2412 general of invalid parameters
2413 - Fixed http server library, and thus RAPI, to handle invalid
2414 username/password combinations correctly; this means that now they
2415 report unauthorized for queries too, not only for modifications,
2416 allowing earlier detect of configuration problems
2417 - Added a new "role" node list field, equivalent to the master/master
2418 candidate/drained/offline flags combinations
2419 - Fixed cluster modify and changes of candidate pool size
2420 - Fixed cluster verify error messages for wrong files on regular nodes
2421 - Fixed a couple of issues with node demotion from master candidate role
2422 - Fixed node readd issues
2423 - Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
2424 - Added a new ``--no-voting`` option for masterfailover to fix failover
2425 on two-nodes clusters when the former master node is unreachable
2426 - Added instance reinstall over RAPI
2432 *(Released Tue, 16 Jun 2009)*
2434 - added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
2435 allow re-adding the start in single-user option (regression from 1.2)
2436 - the watcher writes the instance status to a file, to allow monitoring
2437 to report the instance status (from the master) based on cached
2438 results of the watcher's queries; while this can get stale if the
2439 watcher is being locked due to other work on the cluster, this is
2440 still an improvement
2441 - the watcher now also restarts the node daemon and the rapi daemon if
2443 - fixed the watcher to handle full and drained queue cases
2444 - hooks export more instance data in the environment, which helps if
2445 hook scripts need to take action based on the instance's properties
2446 (no longer need to query back into ganeti)
2447 - instance failovers when the instance is stopped do not check for free
2448 RAM, so that failing over a stopped instance is possible in low memory
2450 - rapi uses queries for tags instead of jobs (for less job traffic), and
2451 for cluster tags it won't talk to masterd at all but read them from
2453 - a couple of error handling fixes in RAPI
2454 - drbd handling: improved the error handling of inconsistent disks after
2455 resync to reduce the frequency of "there are some degraded disks for
2456 this instance" messages
2457 - fixed a bug in live migration when DRBD doesn't want to reconnect (the
2458 error handling path called a wrong function name)
2464 *(Released Wed, 27 May 2009)*
2466 - no changes from rc5
2472 *(Released Wed, 20 May 2009)*
2474 - fix a couple of bugs (validation, argument checks)
2475 - fix ``gnt-cluster getmaster`` on non-master nodes (regression)
2476 - some small improvements to RAPI and IAllocator
2477 - make watcher automatically start the master daemon if down
2483 *(Released Mon, 27 Apr 2009)*
2485 - change the OS list to not require locks; this helps with big clusters
2486 - fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
2487 volume group is broken
2488 - ``gnt-instance info``, without any arguments, doesn't run for all
2489 instances anymore; either pass ``--all`` or pass the desired
2490 instances; this helps against mistakes on big clusters where listing
2491 the information for all instances takes a long time
2492 - miscellaneous doc and man pages fixes
2498 *(Released Wed, 8 Apr 2009)*
2500 - Change the internal locking model of some ``gnt-node`` commands, in
2501 order to reduce contention (and blocking of master daemon) when
2502 batching many creation/reinstall jobs
2503 - Fixes to Xen soft reboot
2504 - No longer build documentation at build time, instead distribute it in
2505 the archive, in order to reduce the need for the whole docbook/rst
2512 *(Released Fri, 27 Mar 2009)*
2514 - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
2515 - Fix watcher startup sequence, improves the behaviour of busy clusters
2516 - Some other fixes in ``gnt-cluster verify``, ``gnt-instance
2517 replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
2518 bind address and other places
2519 - Some documentation fixes and updates
2525 *(Released Mon, 2 Mar 2009)*
2527 - More documentation updates, now all docs should be more-or-less
2529 - A couple of small fixes (mixed hypervisor clusters, offline nodes,
2531 - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
2533 - Fix an issue related to $libdir/run/ganeti and cluster creation
2539 *(Released Thu, 19 Feb 2009)*
2541 - Xen PVM and KVM have switched the default value for the instance root
2542 disk to the first partition on the first drive, instead of the whole
2543 drive; this means that the OS installation scripts must be changed
2545 - Man pages have been updated
2546 - RAPI has been switched by default to HTTPS, and the exported functions
2547 should all work correctly
2548 - RAPI v1 has been removed
2549 - Many improvements to the KVM hypervisor
2550 - Block device errors are now better reported
2551 - Many other bugfixes and small improvements
2557 *(Released Mon, 26 Jan 2009)*
2559 - Version 2 is a general rewrite of the code and therefore the
2560 differences are too many to list, see the design document for 2.0 in
2561 the ``doc/`` subdirectory for more details
2562 - In this beta version there is not yet a migration path from 1.2 (there
2563 will be one in the final 2.0 release)
2564 - A few significant changes are:
2566 - all commands are executed by a daemon (``ganeti-masterd``) and the
2567 various ``gnt-*`` commands are just front-ends to it
2568 - all the commands are entered into, and executed from a job queue,
2569 see the ``gnt-job(8)`` manpage
2570 - the RAPI daemon supports read-write operations, secured by basic
2571 HTTP authentication on top of HTTPS
2572 - DRBD version 0.7 support has been removed, DRBD 8 is the only
2573 supported version (when migrating from Ganeti 1.2 to 2.0, you need
2574 to migrate to DRBD 8 first while still running Ganeti 1.2)
2575 - DRBD devices are using statically allocated minor numbers, which
2576 will be assigned to existing instances during the migration process
2577 - there is support for both Xen PVM and Xen HVM instances running on
2579 - KVM virtualization is supported too
2580 - file-based storage has been implemented, which means that it is
2581 possible to run the cluster without LVM and DRBD storage, for
2582 example using a shared filesystem exported from shared storage (and
2583 still have live migration)
2589 *(Released Tue, 13 Jan 2009)*
2591 - Change the default reboot type in ``gnt-instance reboot`` to "hard"
2592 - Reuse the old instance mac address by default on instance import, if
2593 the instance name is the same.
2594 - Handle situations in which the node info rpc returns incomplete
2596 - Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
2597 - Improved version of batcher:
2599 - state file support
2600 - instance mac address support
2601 - support for HVM clusters/instances
2603 - Add an option to show the number of cpu sockets and nodes in
2605 - Support OSes that handle more than one version of the OS api (but do
2606 not change the current API in any other way)
2607 - Fix ``gnt-node migrate``
2608 - ``gnt-debug`` man page
2609 - Fixes various more typos and small issues
2610 - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
2616 *(Released Wed, 24 Sep 2008)*
2618 - new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
2619 type of disk exported to fully virtualized instances.
2620 - provide access to the serial console of HVM instances
2621 - instance auto_balance flag, set by default. If turned off it will
2622 avoid warnings on cluster verify if there is not enough memory to fail
2623 over an instance. in the future it will prevent automatically failing
2624 it over when we will support that.
2625 - batcher tool for instance creation, see ``tools/README.batcher``
2626 - ``gnt-instance reinstall --select-os`` to interactively select a new
2627 operating system when reinstalling an instance.
2628 - when changing the memory amount on instance modify a check has been
2629 added that the instance will be able to start. also warnings are
2630 emitted if the instance will not be able to fail over, if auto_balance
2632 - documentation fixes
2633 - sync fields between ``gnt-instance list/modify/add/import``
2634 - fix a race condition in drbd when the sync speed was set after giving
2635 the device a remote peer.
2641 *(Released Tue, 22 Jul 2008)*
2643 - note: the allowed size and number of tags per object were reduced
2644 - fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
2645 - fixed twisted 8.x compatibility
2646 - fixed ``gnt-instance replace-disks`` with iallocator
2647 - add TCP keepalives on twisted connections to detect restarted nodes
2648 - disk increase support, see ``gnt-instance grow-disk``
2649 - implement bulk node/instance query for RAPI
2650 - add tags in node/instance listing (optional)
2651 - experimental migration (and live migration) support, read the man page
2652 for ``gnt-instance migrate``
2653 - the ``ganeti-watcher`` logs are now timestamped, and the watcher also
2654 has some small improvements in handling its state file
2660 *(Released Fri, 13 Jun 2008)*
2662 - Experimental readonly, REST-based remote API implementation;
2663 automatically started on master node, TCP port 5080, if enabled by
2664 ``--enable-rapi`` parameter to configure script.
2665 - Instance allocator support. Add and import instance accept a
2666 ``--iallocator`` parameter, and call that instance allocator to decide
2667 which node to use for the instance. The iallocator document describes
2668 what's expected from an allocator script.
2669 - ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
2670 ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
2671 node is lost there is still enough memory to fail over the instances
2673 - ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
2674 ``gnt-cluster verify``, to check for site-specific compliance. All the
2675 hooks will run, and their output, if any, will be displayed. Any
2676 failing hook will make the verification return an error value.
2677 - ``gnt-cluster verify`` now checks that its peers are reachable on the
2678 primary and secondary interfaces
2679 - ``gnt-node add`` now supports the ``--readd`` option, to readd a node
2680 that is still declared as part of the cluster and has failed.
2681 - ``gnt-* list`` commands now accept a new ``-o +field`` way of
2682 specifying output fields, that just adds the chosen fields to the
2684 - ``gnt-backup`` now has a new ``remove`` command to delete an existing
2685 export from the filesystem.
2686 - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
2687 have been added. Using them you can enable/disable acpi and pae
2688 support, and specify a path for a cd image to be exported to the
2689 instance. These parameters as the name suggest only work on HVM
2691 - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
2692 PAE support will be set to the previously hardcoded values, but the
2693 (previously hardcoded) path to the CDROM ISO image will be unset and
2694 if required, needs to be set manually with ``gnt-instance modify``
2696 - The address to which an instance's VNC console is bound is now
2697 selectable per-instance, rather than being cluster wide. Of course
2698 this only applies to instances controlled via VNC, so currently just
2699 applies to HVM clusters.
2705 *(Released Mon, 18 Feb 2008)*
2707 - more tweaks to the disk activation code (especially helpful for DRBD)
2708 - change the default ``gnt-instance list`` output format, now there is
2709 one combined status field (see the manpage for the exact values this
2711 - some more fixes for the mac export to hooks change
2712 - make Ganeti not break with DRBD 8.2.x (which changed the version
2713 format in ``/proc/drbd``) (issue 24)
2714 - add an upgrade tool from "remote_raid1" disk template to "drbd" disk
2715 template, allowing migration from DRBD0.7+MD to DRBD8
2721 *(Released Wed, 30 Jan 2008)*
2723 - fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
2725 - add command aliases infrastructure and a few aliases
2726 - allow listing of VCPUs in the ``gnt-instance list`` and improve the
2727 man pages and the ``--help`` option of ``gnt-node
2728 list``/``gnt-instance list``
2729 - fix ``gnt-backup list`` with down nodes (issue 21)
2730 - change the tools location (move from $pkgdatadir to $pkglibdir/tools)
2731 - fix the dist archive and add a check for including svn/git files in
2733 - some developer-related changes: improve the burnin and the QA suite,
2734 add an upload script for testing during development
2740 *(Released Wed, 16 Jan 2008)*
2742 - experimental HVM support, read the install document, section
2743 "Initializing the cluster"
2744 - allow for the PVM hypervisor per-instance kernel and initrd paths
2745 - add a new command ``gnt-cluster verify-disks`` which uses a new
2746 algorithm to improve the reconnection of the DRBD pairs if the device
2747 on the secondary node has gone away
2748 - make logical volume code auto-activate LVs at disk activation time
2749 - slightly improve the speed of activating disks
2750 - allow specification of the MAC address at instance creation time, and
2751 changing it later via ``gnt-instance modify``
2752 - fix handling of external commands that generate lots of output on
2754 - update documentation with regard to minimum version of DRBD8 supported
2760 *(Released Tue, 4 Dec 2007)*
2762 - Log the ``xm create`` output to the node daemon log on failure (to
2763 help diagnosing the error)
2764 - In debug mode, log all external commands output if failed to the logs
2765 - Change parsing of lvm commands to ignore stderr
2771 *(Released Wed, 28 Nov 2007)*
2773 - Another round of updates to the DRBD 8 code to deal with more failures
2774 in the replace secondary node operation
2775 - Some more logging of failures in disk operations (lvm, drbd)
2776 - A few documentation updates
2783 *(Released Tue, 13 Nov 2007)*
2785 - Change configuration file format from Python's Pickle to JSON.
2786 Upgrading is possible using the cfgupgrade utility.
2787 - Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
2788 faster replace disks and is more stable (DRBD 8 has many improvements
2789 compared to DRBD 0.7)
2790 - Added command line tags support (see man pages for ``gnt-instance``,
2791 ``gnt-node``, ``gnt-cluster``)
2792 - Added instance rename support
2793 - Added multi-instance startup/shutdown
2794 - Added cluster rename support
2795 - Added ``gnt-node evacuate`` to simplify some node operations
2796 - Added instance reboot operation that can speedup reboot as compared to
2798 - Soften the requirement that hostnames are in FQDN format
2799 - The ``ganeti-watcher`` now activates drbd pairs after secondary node
2801 - Removed dependency on debian's patched fping that uses the
2802 non-standard ``-S`` option
2803 - Now the OS definitions are searched for in multiple, configurable
2804 paths (easier for distros to package)
2805 - Some changes to the hooks infrastructure (especially the new
2806 post-configuration update hook)
2807 - Other small bugfixes
2809 .. vim: set textwidth=72 syntax=rst :