7 *(Released Fri, 7 May 2010)*
9 Fix a bug which prevented untagged KVM instances from starting.
15 *(Released Fri, 7 May 2010)*
17 Another release with a long development cycle, during which many
18 different features were added.
23 The KVM hypervisor now can run the individual instances as non-root, to
24 reduce the impact of a VM being hijacked due to bugs in the
25 hypervisor. It is possible to run all instances as a single (non-root)
26 user, to manually specify a user for each instance, or to dynamically
27 allocate a user out of a cluster-wide pool to each instance, with the
28 guarantee that no two instances will run under the same user ID on any
31 An experimental RAPI client library, that can be used standalone
32 (without the other Ganeti libraries), is provided in the source tree as
33 ``lib/rapi/client.py``. Note this client might change its interface in
34 the future, as we iterate on its capabilities.
36 A new command, ``gnt-cluster renew-crypto`` has been added to easily
37 replace the cluster's certificates and crypto keys. This might help in
38 case they have been compromised, or have simply expired.
40 A new disk option for instance creation has been added that allows one
41 to "adopt" currently existing logical volumes, with data
42 preservation. This should allow easier migration to Ganeti from
43 unmanaged (or managed via other software) instances.
45 Another disk improvement is the possibility to convert between redundant
46 (DRBD) and plain (LVM) disk configuration for an instance. This should
47 allow better scalability (starting with one node and growing the
48 cluster, or shrinking a two-node cluster to one node).
50 A new feature that could help with automated node failovers has been
51 implemented: if a node sees itself as offline (by querying the master
52 candidates), it will try to shutdown (hard) all instances and any active
53 DRBD devices. This reduces the risk of duplicate instances if an
54 external script automatically failovers the instances on such nodes. To
55 enable this, the cluster parameter ``maintain_node_health`` should be
56 enabled; in the future this option (per the name) will enable other
57 automatic maintenance features.
59 Instance export/import now will reuse the original instance
60 specifications for all parameters; that means exporting an instance,
61 deleting it and the importing it back should give an almost identical
62 instance. Note that the default import behaviour has changed from
63 before, where it created only one NIC; now it recreates the original
66 Cluster verify has added a few new checks: SSL certificates validity,
67 /etc/hosts consistency across the cluster, etc.
72 As usual, many internal changes were done, documentation fixes,
75 - Fixed cluster initialization with disabled cluster storage (regression
77 - File-based storage supports growing the disks
78 - Fixed behaviour of node role changes
79 - Fixed cluster verify for some corner cases, plus a general rewrite of
80 cluster verify to allow future extension with more checks
81 - Fixed log spamming by watcher and node daemon (regression introduced
83 - Fixed possible validation issues when changing the list of enabled
85 - Fixed cleanup of /etc/hosts during node removal
86 - Fixed RAPI response for invalid methods
87 - Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
88 - Multiple small improvements to the KVM hypervisor (VNC usage, booting
90 - Allow OS changes without re-installation (to record a changed OS
91 outside of Ganeti, or to allow OS renames)
92 - Allow instance creation without OS installation (useful for example if
93 the OS will be installed manually, or restored from a backup not in
95 - Implemented option to make cluster ``copyfile`` use the replication
97 - Added list of enabled hypervisors to ssconf (possibly useful for
99 - Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
101 - A partial form of node re-IP is possible via node readd, which now
102 allows changed node primary IP
103 - Command line utilities now show an informational message if the job is
105 - The logs of the master daemon now show the PID/UID/GID of the
112 *(Released Fri, 12 Mar 2010)*
114 During the 2.1.0 long release candidate cycle, a lot of improvements and
115 changes have accumulated with were released later as 2.1.1.
120 The node evacuate command (``gnt-node evacuate``) was significantly
121 rewritten, and as such the IAllocator protocol was changed - a new
122 request type has been added. This unfortunate change during a stable
123 series is designed to improve performance of node evacuations; on
124 clusters with more than about five nodes and which are well-balanced,
125 evacuation should proceed in parallel for all instances of the node
126 being evacuated. As such, any existing IAllocator scripts need to be
127 updated, otherwise the above command will fail due to the unknown
128 request. The provided "dumb" allocator has not been updated; but the
129 ganeti-htools package supports the new protocol since version 0.2.4.
131 Another important change is increased validation of node and instance
132 names. This might create problems in special cases, if invalid host
133 names are being used.
135 Also, a new layer of hypervisor parameters has been added, that sits at
136 OS level between the cluster defaults and the instance ones. This allows
137 customisation of virtualization parameters depending on the installed
138 OS. For example instances with OS 'X' may have a different KVM kernel
139 (or any other parameter) than the cluster defaults. This is intended to
140 help managing a multiple OSes on the same cluster, without manual
141 modification of each instance's parameters.
143 A tool for merging clusters, ``cluster-merge``, has been added in the
149 - Improved the int/float conversions that should make the code more
150 robust in face of errors from the node daemons
151 - Fixed the remove node code in case of internal configuration errors
152 - Fixed the node daemon behaviour in face of inconsistent queue
153 directory (e.g. read-only file-system where we can't open the files
155 - Fixed the behaviour of gnt-node modify for master candidate demotion;
156 now it either aborts cleanly or, if given the new “auto_promote”
157 parameter, will automatically promote other nodes as needed
158 - Fixed compatibility with (unreleased yet) Python 2.6.5 that would
159 completely prevent Ganeti from working
160 - Fixed bug for instance export when not all disks were successfully
162 - Fixed behaviour of node add when the new node is slow in starting up
164 - Fixed handling of signals in the LUXI client, which should improve
165 behaviour of command-line scripts
166 - Added checks for invalid node/instance names in the configuration (now
167 flagged during cluster verify)
168 - Fixed watcher behaviour for disk activation errors
169 - Fixed two potentially endless loops in http library, which led to the
170 RAPI daemon hanging and consuming 100% CPU in some cases
171 - Fixed bug in RAPI daemon related to hashed passwords
172 - Fixed bug for unintended qemu-level bridging of multi-NIC KVM
174 - Enhanced compatibility with non-Debian OSes, but not using absolute
175 path in some commands and allowing customisation of the ssh
176 configuration directory
177 - Fixed possible future issue with new Python versions by abiding to the
178 proper use of ``__slots__`` attribute on classes
179 - Added checks that should prevent directory traversal attacks
180 - Many documentation fixes based on feedback from users
185 - Added an “early_release” more for instance replace disks and node
186 evacuate, where we release locks earlier and thus allow higher
187 parallelism within the cluster
188 - Added watcher hooks, intended to allow the watcher to restart other
189 daemons (e.g. from the ganeti-nbma project), but they can be used of
190 course for any other purpose
191 - Added a compile-time disable for DRBD barriers, to increase
192 performance if the administrator trusts the power supply or the
193 storage system to not lose writes
194 - Added the option of using syslog for logging instead of, or in
195 addition to, Ganeti's own log files
196 - Removed boot restriction for paravirtual NICs for KVM, recent versions
197 can indeed boot from a paravirtual NIC
198 - Added a generic debug level for many operations; while this is not
199 used widely yet, it allows one to pass the debug value all the way to
201 - Enhanced the hooks environment for instance moves (failovers,
202 migrations) where the primary/secondary nodes changed during the
203 operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
204 - Enhanced data validations for many user-supplied values; one important
205 item is the restrictions imposed on instance and node names, which
206 might reject some (invalid) host names
207 - Add a configure-time option to disable file-based storage, if it's not
208 needed; this allows greater security separation between the master
209 node and the other nodes from the point of view of the inter-node RPC
211 - Added user notification in interactive tools if job is waiting in the
212 job queue or trying to acquire locks
213 - Added log messages when a job is waiting for locks
214 - Added filtering by node tags in instance operations which admit
215 multiple instances (start, stop, reboot, reinstall)
216 - Added a new tool for cluster mergers, ``cluster-merge``
217 - Parameters from command line which are of the form ``a=b,c=d`` can now
218 use backslash escapes to pass in values which contain commas,
219 e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
221 - For KVM, the instance name is the first parameter passed to KVM, so
222 that it's more visible in the process list
228 *(Released Tue, 2 Mar 2010)*
230 Ganeti 2.1 brings many improvements with it. Major changes:
232 - Added infrastructure to ease automated disk repairs
233 - Added new daemon to export configuration data in a cheaper way than
235 - Instance NICs can now be routed instead of being associated with a
237 - Improved job locking logic to reduce impact of jobs acquiring multiple
238 locks waiting for other long-running jobs
240 In-depth implementation details can be found in the Ganeti 2.1 design
246 - Added chroot hypervisor
247 - Added more options to xen-hvm hypervisor (``kernel_path`` and
249 - Added more options to xen-pvm hypervisor (``use_bootloader``,
250 ``bootloader_path`` and ``bootloader_args``)
251 - Added the ``use_localtime`` option for the xen-hvm and kvm
252 hypervisors, and the default value for this has changed to false (in
253 2.0 xen-hvm always enabled it)
254 - Added luxi call to submit multiple jobs in one go
255 - Added cluster initialization option to not modify ``/etc/hosts``
257 - Added network interface parameters
258 - Added dry run mode to some LUs
259 - Added RAPI resources:
261 - ``/2/instances/[instance_name]/info``
262 - ``/2/instances/[instance_name]/replace-disks``
263 - ``/2/nodes/[node_name]/evacuate``
264 - ``/2/nodes/[node_name]/migrate``
265 - ``/2/nodes/[node_name]/role``
266 - ``/2/nodes/[node_name]/storage``
267 - ``/2/nodes/[node_name]/storage/modify``
268 - ``/2/nodes/[node_name]/storage/repair``
270 - Added OpCodes to evacuate or migrate all instances on a node
271 - Added new command to list storage elements on nodes (``gnt-node
272 list-storage``) and modify them (``gnt-node modify-storage``)
273 - Added new ssconf files with master candidate IP address
274 (``ssconf_master_candidates_ips``), node primary IP address
275 (``ssconf_node_primary_ips``) and node secondary IP address
276 (``ssconf_node_secondary_ips``)
277 - Added ``ganeti-confd`` and a client library to query the Ganeti
278 configuration via UDP
279 - Added ability to run hooks after cluster initialization and before
281 - Added automatic mode for disk replace (``gnt-instance replace-disks
283 - Added ``gnt-instance recreate-disks`` to re-create (empty) disks
284 after catastrophic data-loss
285 - Added ``gnt-node repair-storage`` command to repair damaged LVM volume
287 - Added ``gnt-instance move`` command to move instances
288 - Added ``gnt-cluster watcher`` command to control watcher
289 - Added ``gnt-node powercycle`` command to powercycle nodes
290 - Added new job status field ``lock_status``
291 - Added parseable error codes to cluster verification (``gnt-cluster
292 verify --error-codes``) and made output less verbose (use
293 ``--verbose`` to restore previous behaviour)
294 - Added UUIDs to the main config entities (cluster, nodes, instances)
295 - Added support for OS variants
296 - Added support for hashed passwords in the Ganeti remote API users file
298 - Added option to specify maximum timeout on instance shutdown
299 - Added ``--no-ssh-init`` option to ``gnt-cluster init``
300 - Added new helper script to start and stop Ganeti daemons
301 (``daemon-util``), with the intent to reduce the work necessary to
302 adjust Ganeti for non-Debian distributions and to start/stop daemons
304 - Added more unittests
305 - Fixed critical bug in ganeti-masterd startup
306 - Removed the configure-time ``kvm-migration-port`` parameter, this is
307 now customisable at the cluster level for both the KVM and Xen
308 hypervisors using the new ``migration_port`` parameter
309 - Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
310 reinstalling an instance
311 - Allowed ``@`` in tag names
312 - Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
313 - Many documentation updates
314 - Distribute hypervisor files on ``gnt-cluster redist-conf``
315 - ``gnt-instance reinstall`` can now reinstall multiple instances
316 - Updated many command line parameters
317 - Introduced new OS API version 15
318 - No longer support a default hypervisor
319 - Treat virtual LVs as inexistent
320 - Improved job locking logic to reduce lock contention
321 - Match instance and node names case insensitively
322 - Reimplemented bash completion script to be more complete
329 *(Released Thu, 4 Feb 2010)*
331 - Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
332 - Fix a string formatting bug
333 - Improve safety of the code in some error paths
334 - Improve data validation in the master of values returned from nodes
340 *(Released Thu, 17 Dec 2009)*
342 - Fix security issue due to missing validation of iallocator names; this
343 allows local and remote execution of arbitrary executables
344 - Fix failure of gnt-node list during instance removal
345 - Ship the RAPI documentation in the archive
351 *(Released Wed, 30 Sep 2009)*
353 - Fixed many wrong messages
354 - Fixed a few bugs related to the locking library
355 - Fixed MAC checking at instance creation time
356 - Fixed a DRBD parsing bug related to gaps in /proc/drbd
357 - Fixed a few issues related to signal handling in both daemons and
359 - Fixed the example startup script provided
360 - Fixed insserv dependencies in the example startup script (patch from
362 - Fixed handling of drained nodes in the iallocator framework
363 - Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
365 - Fixed error related to invalid job IDs in job polling
366 - Fixed job/opcode persistence on unclean master shutdown
367 - Fixed handling of partial job processing after unclean master
369 - Fixed error reporting from LUs, previously all errors were converted
370 into execution errors
371 - Fixed error reporting from burnin
372 - Decreased significantly the memory usage of the job queue
373 - Optimised slightly multi-job submission
374 - Optimised slightly opcode loading
375 - Backported the multi-job submit framework from the development
376 branch; multi-instance start and stop should be faster
377 - Added script to clean archived jobs after 21 days; this will reduce
378 the size of the queue directory
379 - Added some extra checks in disk size tracking
380 - Added an example ethers hook script
381 - Added a cluster parameter that prevents Ganeti from modifying of
383 - Added more node information to RAPI responses
384 - Added a ``gnt-job watch`` command that allows following the ouput of a
386 - Added a bind-address option to ganeti-rapi
387 - Added more checks to the configuration verify
388 - Enhanced the burnin script such that some operations can be retried
390 - Converted instance reinstall to multi-instance model
396 *(Released Fri, 7 Aug 2009)*
398 - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
399 to allow using the pre-2.0.2 behaviour in activation, if any existing
400 instances have mismatched disk sizes in the configuration
401 - Added ``gnt-cluster repair-disk-sizes`` command to check and update
402 any configuration mismatches for disk sizes
403 - Added ``gnt-master cluste-failover --no-voting`` to allow master
404 failover to work on two-node clusters
405 - Fixed the ``--net`` option of ``gnt-backup import``, which was
407 - Fixed detection of OS script errors in ``gnt-backup export``
408 - Fixed exit code of ``gnt-backup export``
414 *(Released Fri, 17 Jul 2009)*
416 - Added experimental support for stripped logical volumes; this should
417 enhance performance but comes with a higher complexity in the block
418 device handling; stripping is only enabled when passing
419 ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
420 affected even in the non-stripped mode
421 - Improved resiliency against transient failures at the end of DRBD
422 resyncs, and in general of DRBD resync checks
423 - Fixed a couple of issues with exports and snapshot errors
424 - Fixed a couple of issues in instance listing
425 - Added display of the disk size in ``gnt-instance info``
426 - Fixed checking for valid OSes in instance creation
427 - Fixed handling of the "vcpus" parameter in instance listing and in
428 general of invalid parameters
429 - Fixed http server library, and thus RAPI, to handle invalid
430 username/password combinations correctly; this means that now they
431 report unauthorized for queries too, not only for modifications,
432 allowing earlier detect of configuration problems
433 - Added a new "role" node list field, equivalent to the master/master
434 candidate/drained/offline flags combinations
435 - Fixed cluster modify and changes of candidate pool size
436 - Fixed cluster verify error messages for wrong files on regular nodes
437 - Fixed a couple of issues with node demotion from master candidate role
438 - Fixed node readd issues
439 - Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
440 - Added a new ``--no-voting`` option for masterfailover to fix failover
441 on two-nodes clusters when the former master node is unreachable
442 - Added instance reinstall over RAPI
448 *(Released Tue, 16 Jun 2009)*
450 - added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
451 allow re-adding the start in single-user option (regression from 1.2)
452 - the watcher writes the instance status to a file, to allow monitoring
453 to report the instance status (from the master) based on cached
454 results of the watcher's queries; while this can get stale if the
455 watcher is being locked due to other work on the cluster, this is
457 - the watcher now also restarts the node daemon and the rapi daemon if
459 - fixed the watcher to handle full and drained queue cases
460 - hooks export more instance data in the environment, which helps if
461 hook scripts need to take action based on the instance's properties
462 (no longer need to query back into ganeti)
463 - instance failovers when the instance is stopped do not check for free
464 RAM, so that failing over a stopped instance is possible in low memory
466 - rapi uses queries for tags instead of jobs (for less job traffic), and
467 for cluster tags it won't talk to masterd at all but read them from
469 - a couple of error handling fixes in RAPI
470 - drbd handling: improved the error handling of inconsistent disks after
471 resync to reduce the frequency of "there are some degraded disks for
472 this instance" messages
473 - fixed a bug in live migration when DRBD doesn't want to reconnect (the
474 error handling path called a wrong function name)
480 *(Released Wed, 27 May 2009)*
482 - no changes from rc5
485 Version 2.0 release candidate 5
486 -------------------------------
488 *(Released Wed, 20 May 2009)*
490 - fix a couple of bugs (validation, argument checks)
491 - fix ``gnt-cluster getmaster`` on non-master nodes (regression)
492 - some small improvements to RAPI and IAllocator
493 - make watcher automatically start the master daemon if down
496 Version 2.0 release candidate 4
497 -------------------------------
499 *(Released Mon, 27 Apr 2009)*
501 - change the OS list to not require locks; this helps with big clusters
502 - fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
503 volume group is broken
504 - ``gnt-instance info``, without any arguments, doesn't run for all
505 instances anymore; either pass ``--all`` or pass the desired
506 instances; this helps against mistakes on big clusters where listing
507 the information for all instances takes a long time
508 - miscellaneous doc and man pages fixes
511 Version 2.0 release candidate 3
512 -------------------------------
514 *(Released Wed, 8 Apr 2009)*
516 - Change the internal locking model of some ``gnt-node`` commands, in
517 order to reduce contention (and blocking of master daemon) when
518 batching many creation/reinstall jobs
519 - Fixes to Xen soft reboot
520 - No longer build documentation at build time, instead distribute it in
521 the archive, in order to reduce the need for the whole docbook/rst
525 Version 2.0 release candidate 2
526 -------------------------------
528 *(Released Fri, 27 Mar 2009)*
530 - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
531 - Fix watcher startup sequence, improves the behaviour of busy clusters
532 - Some other fixes in ``gnt-cluster verify``, ``gnt-instance
533 replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
534 bind address and other places
535 - Some documentation fixes and updates
538 Version 2.0 release candidate 1
539 -------------------------------
541 *(Released Mon, 2 Mar 2009)*
543 - More documentation updates, now all docs should be more-or-less
545 - A couple of small fixes (mixed hypervisor clusters, offline nodes,
547 - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
549 - Fix an issue related to $libdir/run/ganeti and cluster creation
555 *(Released Thu, 19 Feb 2009)*
557 - Xen PVM and KVM have switched the default value for the instance root
558 disk to the first partition on the first drive, instead of the whole
559 drive; this means that the OS installation scripts must be changed
561 - Man pages have been updated
562 - RAPI has been switched by default to HTTPS, and the exported functions
563 should all work correctly
564 - RAPI v1 has been removed
565 - Many improvements to the KVM hypervisor
566 - Block device errors are now better reported
567 - Many other bugfixes and small improvements
573 *(Released Mon, 26 Jan 2009)*
575 - Version 2 is a general rewrite of the code and therefore the
576 differences are too many to list, see the design document for 2.0 in
577 the ``doc/`` subdirectory for more details
578 - In this beta version there is not yet a migration path from 1.2 (there
579 will be one in the final 2.0 release)
580 - A few significant changes are:
582 - all commands are executed by a daemon (``ganeti-masterd``) and the
583 various ``gnt-*`` commands are just front-ends to it
584 - all the commands are entered into, and executed from a job queue,
585 see the ``gnt-job(8)`` manpage
586 - the RAPI daemon supports read-write operations, secured by basic
587 HTTP authentication on top of HTTPS
588 - DRBD version 0.7 support has been removed, DRBD 8 is the only
589 supported version (when migrating from Ganeti 1.2 to 2.0, you need
590 to migrate to DRBD 8 first while still running Ganeti 1.2)
591 - DRBD devices are using statically allocated minor numbers, which
592 will be assigned to existing instances during the migration process
593 - there is support for both Xen PVM and Xen HVM instances running on
595 - KVM virtualization is supported too
596 - file-based storage has been implemented, which means that it is
597 possible to run the cluster without LVM and DRBD storage, for
598 example using a shared filesystem exported from shared storage (and
599 still have live migration)
605 *(Released Tue, 13 Jan 2009)*
607 - Change the default reboot type in ``gnt-instance reboot`` to "hard"
608 - Reuse the old instance mac address by default on instance import, if
609 the instance name is the same.
610 - Handle situations in which the node info rpc returns incomplete
612 - Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
613 - Improved version of batcher:
616 - instance mac address support
617 - support for HVM clusters/instances
619 - Add an option to show the number of cpu sockets and nodes in
621 - Support OSes that handle more than one version of the OS api (but do
622 not change the current API in any other way)
623 - Fix ``gnt-node migrate``
624 - ``gnt-debug`` man page
625 - Fixes various more typos and small issues
626 - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
632 *(Released Wed, 24 Sep 2008)*
634 - new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
635 type of disk exported to fully virtualized instances.
636 - provide access to the serial console of HVM instances
637 - instance auto_balance flag, set by default. If turned off it will
638 avoid warnings on cluster verify if there is not enough memory to fail
639 over an instance. in the future it will prevent automatically failing
640 it over when we will support that.
641 - batcher tool for instance creation, see ``tools/README.batcher``
642 - ``gnt-instance reinstall --select-os`` to interactively select a new
643 operating system when reinstalling an instance.
644 - when changing the memory amount on instance modify a check has been
645 added that the instance will be able to start. also warnings are
646 emitted if the instance will not be able to fail over, if auto_balance
648 - documentation fixes
649 - sync fields between ``gnt-instance list/modify/add/import``
650 - fix a race condition in drbd when the sync speed was set after giving
651 the device a remote peer.
657 *(Released Tue, 22 Jul 2008)*
659 - note: the allowed size and number of tags per object were reduced
660 - fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
661 - fixed twisted 8.x compatibility
662 - fixed ``gnt-instance replace-disks`` with iallocator
663 - add TCP keepalives on twisted connections to detect restarted nodes
664 - disk increase support, see ``gnt-instance grow-disk``
665 - implement bulk node/instance query for RAPI
666 - add tags in node/instance listing (optional)
667 - experimental migration (and live migration) support, read the man page
668 for ``gnt-instance migrate``
669 - the ``ganeti-watcher`` logs are now timestamped, and the watcher also
670 has some small improvements in handling its state file
676 *(Released Fri, 13 Jun 2008)*
678 - Experimental readonly, REST-based remote API implementation;
679 automatically started on master node, TCP port 5080, if enabled by
680 ``--enable-rapi`` parameter to configure script.
681 - Instance allocator support. Add and import instance accept a
682 ``--iallocator`` parameter, and call that instance allocator to decide
683 which node to use for the instance. The iallocator document describes
684 what's expected from an allocator script.
685 - ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
686 ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
687 node is lost there is still enough memory to fail over the instances
689 - ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
690 ``gnt-cluster verify``, to check for site-specific compliance. All the
691 hooks will run, and their output, if any, will be displayed. Any
692 failing hook will make the verification return an error value.
693 - ``gnt-cluster verify`` now checks that its peers are reachable on the
694 primary and secondary interfaces
695 - ``gnt-node add`` now supports the ``--readd`` option, to readd a node
696 that is still declared as part of the cluster and has failed.
697 - ``gnt-* list`` commands now accept a new ``-o +field`` way of
698 specifying output fields, that just adds the chosen fields to the
700 - ``gnt-backup`` now has a new ``remove`` command to delete an existing
701 export from the filesystem.
702 - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
703 have been added. Using them you can enable/disable acpi and pae
704 support, and specify a path for a cd image to be exported to the
705 instance. These parameters as the name suggest only work on HVM
707 - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
708 PAE support will be set to the previously hardcoded values, but the
709 (previously hardcoded) path to the CDROM ISO image will be unset and
710 if required, needs to be set manually with ``gnt-instance modify``
712 - The address to which an instance's VNC console is bound is now
713 selectable per-instance, rather than being cluster wide. Of course
714 this only applies to instances controlled via VNC, so currently just
715 applies to HVM clusters.
721 *(Released Mon, 18 Feb 2008)*
723 - more tweaks to the disk activation code (especially helpful for DRBD)
724 - change the default ``gnt-instance list`` output format, now there is
725 one combined status field (see the manpage for the exact values this
727 - some more fixes for the mac export to hooks change
728 - make Ganeti not break with DRBD 8.2.x (which changed the version
729 format in ``/proc/drbd``) (issue 24)
730 - add an upgrade tool from "remote_raid1" disk template to "drbd" disk
731 template, allowing migration from DRBD0.7+MD to DRBD8
737 *(Released Wed, 30 Jan 2008)*
739 - fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
741 - add command aliases infrastructure and a few aliases
742 - allow listing of VCPUs in the ``gnt-instance list`` and improve the
743 man pages and the ``--help`` option of ``gnt-node
744 list``/``gnt-instance list``
745 - fix ``gnt-backup list`` with down nodes (issue 21)
746 - change the tools location (move from $pkgdatadir to $pkglibdir/tools)
747 - fix the dist archive and add a check for including svn/git files in
749 - some developer-related changes: improve the burnin and the QA suite,
750 add an upload script for testing during development
756 *(Released Wed, 16 Jan 2008)*
758 - experimental HVM support, read the install document, section
759 "Initializing the cluster"
760 - allow for the PVM hypervisor per-instance kernel and initrd paths
761 - add a new command ``gnt-cluster verify-disks`` which uses a new
762 algorithm to improve the reconnection of the DRBD pairs if the device
763 on the secondary node has gone away
764 - make logical volume code auto-activate LVs at disk activation time
765 - slightly improve the speed of activating disks
766 - allow specification of the MAC address at instance creation time, and
767 changing it later via ``gnt-instance modify``
768 - fix handling of external commands that generate lots of output on
770 - update documentation with regard to minimum version of DRBD8 supported
776 *(Released Tue, 4 Dec 2007)*
778 - Log the ``xm create`` output to the node daemon log on failure (to
779 help diagnosing the error)
780 - In debug mode, log all external commands output if failed to the logs
781 - Change parsing of lvm commands to ignore stderr
787 *(Released Wed, 28 Nov 2007)*
789 - Another round of updates to the DRBD 8 code to deal with more failures
790 in the replace secondary node operation
791 - Some more logging of failures in disk operations (lvm, drbd)
792 - A few documentation updates
799 *(Released Tue, 13 Nov 2007)*
801 - Change configuration file format from Python's Pickle to JSON.
802 Upgrading is possible using the cfgupgrade utility.
803 - Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
804 faster replace disks and is more stable (DRBD 8 has many improvements
805 compared to DRBD 0.7)
806 - Added command line tags support (see man pages for ``gnt-instance``,
807 ``gnt-node``, ``gnt-cluster``)
808 - Added instance rename support
809 - Added multi-instance startup/shutdown
810 - Added cluster rename support
811 - Added ``gnt-node evacuate`` to simplify some node operations
812 - Added instance reboot operation that can speedup reboot as compared to
814 - Soften the requirement that hostnames are in FQDN format
815 - The ``ganeti-watcher`` now activates drbd pairs after secondary node
817 - Removed dependency on debian's patched fping that uses the
818 non-standard ``-S`` option
819 - Now the OS definitions are searched for in multiple, configurable
820 paths (easier for distros to package)
821 - Some changes to the hooks infrastructure (especially the new
822 post-configuration update hook)
823 - Other small bugfixes
825 .. vim: set textwidth=72 :