7 - RAPI now requires a Content-Type header for requests with a body (e.g.
8 ``PUT`` or ``POST``) which must be set to ``application/json`` (see
9 RFC2616 (HTTP/1.1), section 7.2.1)
15 *(Released Fri, 7 May 2010)*
17 Fix a bug which prevented untagged KVM instances from starting.
23 *(Released Fri, 7 May 2010)*
25 Another release with a long development cycle, during which many
26 different features were added.
31 The KVM hypervisor now can run the individual instances as non-root, to
32 reduce the impact of a VM being hijacked due to bugs in the
33 hypervisor. It is possible to run all instances as a single (non-root)
34 user, to manually specify a user for each instance, or to dynamically
35 allocate a user out of a cluster-wide pool to each instance, with the
36 guarantee that no two instances will run under the same user ID on any
39 An experimental RAPI client library, that can be used standalone
40 (without the other Ganeti libraries), is provided in the source tree as
41 ``lib/rapi/client.py``. Note this client might change its interface in
42 the future, as we iterate on its capabilities.
44 A new command, ``gnt-cluster renew-crypto`` has been added to easily
45 replace the cluster's certificates and crypto keys. This might help in
46 case they have been compromised, or have simply expired.
48 A new disk option for instance creation has been added that allows one
49 to "adopt" currently existing logical volumes, with data
50 preservation. This should allow easier migration to Ganeti from
51 unmanaged (or managed via other software) instances.
53 Another disk improvement is the possibility to convert between redundant
54 (DRBD) and plain (LVM) disk configuration for an instance. This should
55 allow better scalability (starting with one node and growing the
56 cluster, or shrinking a two-node cluster to one node).
58 A new feature that could help with automated node failovers has been
59 implemented: if a node sees itself as offline (by querying the master
60 candidates), it will try to shutdown (hard) all instances and any active
61 DRBD devices. This reduces the risk of duplicate instances if an
62 external script automatically failovers the instances on such nodes. To
63 enable this, the cluster parameter ``maintain_node_health`` should be
64 enabled; in the future this option (per the name) will enable other
65 automatic maintenance features.
67 Instance export/import now will reuse the original instance
68 specifications for all parameters; that means exporting an instance,
69 deleting it and the importing it back should give an almost identical
70 instance. Note that the default import behaviour has changed from
71 before, where it created only one NIC; now it recreates the original
74 Cluster verify has added a few new checks: SSL certificates validity,
75 /etc/hosts consistency across the cluster, etc.
80 As usual, many internal changes were done, documentation fixes,
83 - Fixed cluster initialization with disabled cluster storage (regression
85 - File-based storage supports growing the disks
86 - Fixed behaviour of node role changes
87 - Fixed cluster verify for some corner cases, plus a general rewrite of
88 cluster verify to allow future extension with more checks
89 - Fixed log spamming by watcher and node daemon (regression introduced
91 - Fixed possible validation issues when changing the list of enabled
93 - Fixed cleanup of /etc/hosts during node removal
94 - Fixed RAPI response for invalid methods
95 - Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
96 - Multiple small improvements to the KVM hypervisor (VNC usage, booting
98 - Allow OS changes without re-installation (to record a changed OS
99 outside of Ganeti, or to allow OS renames)
100 - Allow instance creation without OS installation (useful for example if
101 the OS will be installed manually, or restored from a backup not in
103 - Implemented option to make cluster ``copyfile`` use the replication
105 - Added list of enabled hypervisors to ssconf (possibly useful for
107 - Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
109 - A partial form of node re-IP is possible via node readd, which now
110 allows changed node primary IP
111 - Command line utilities now show an informational message if the job is
113 - The logs of the master daemon now show the PID/UID/GID of the
120 *(Released Fri, 12 Mar 2010)*
122 During the 2.1.0 long release candidate cycle, a lot of improvements and
123 changes have accumulated with were released later as 2.1.1.
128 The node evacuate command (``gnt-node evacuate``) was significantly
129 rewritten, and as such the IAllocator protocol was changed - a new
130 request type has been added. This unfortunate change during a stable
131 series is designed to improve performance of node evacuations; on
132 clusters with more than about five nodes and which are well-balanced,
133 evacuation should proceed in parallel for all instances of the node
134 being evacuated. As such, any existing IAllocator scripts need to be
135 updated, otherwise the above command will fail due to the unknown
136 request. The provided "dumb" allocator has not been updated; but the
137 ganeti-htools package supports the new protocol since version 0.2.4.
139 Another important change is increased validation of node and instance
140 names. This might create problems in special cases, if invalid host
141 names are being used.
143 Also, a new layer of hypervisor parameters has been added, that sits at
144 OS level between the cluster defaults and the instance ones. This allows
145 customisation of virtualization parameters depending on the installed
146 OS. For example instances with OS 'X' may have a different KVM kernel
147 (or any other parameter) than the cluster defaults. This is intended to
148 help managing a multiple OSes on the same cluster, without manual
149 modification of each instance's parameters.
151 A tool for merging clusters, ``cluster-merge``, has been added in the
157 - Improved the int/float conversions that should make the code more
158 robust in face of errors from the node daemons
159 - Fixed the remove node code in case of internal configuration errors
160 - Fixed the node daemon behaviour in face of inconsistent queue
161 directory (e.g. read-only file-system where we can't open the files
163 - Fixed the behaviour of gnt-node modify for master candidate demotion;
164 now it either aborts cleanly or, if given the new “auto_promote”
165 parameter, will automatically promote other nodes as needed
166 - Fixed compatibility with (unreleased yet) Python 2.6.5 that would
167 completely prevent Ganeti from working
168 - Fixed bug for instance export when not all disks were successfully
170 - Fixed behaviour of node add when the new node is slow in starting up
172 - Fixed handling of signals in the LUXI client, which should improve
173 behaviour of command-line scripts
174 - Added checks for invalid node/instance names in the configuration (now
175 flagged during cluster verify)
176 - Fixed watcher behaviour for disk activation errors
177 - Fixed two potentially endless loops in http library, which led to the
178 RAPI daemon hanging and consuming 100% CPU in some cases
179 - Fixed bug in RAPI daemon related to hashed passwords
180 - Fixed bug for unintended qemu-level bridging of multi-NIC KVM
182 - Enhanced compatibility with non-Debian OSes, but not using absolute
183 path in some commands and allowing customisation of the ssh
184 configuration directory
185 - Fixed possible future issue with new Python versions by abiding to the
186 proper use of ``__slots__`` attribute on classes
187 - Added checks that should prevent directory traversal attacks
188 - Many documentation fixes based on feedback from users
193 - Added an “early_release” more for instance replace disks and node
194 evacuate, where we release locks earlier and thus allow higher
195 parallelism within the cluster
196 - Added watcher hooks, intended to allow the watcher to restart other
197 daemons (e.g. from the ganeti-nbma project), but they can be used of
198 course for any other purpose
199 - Added a compile-time disable for DRBD barriers, to increase
200 performance if the administrator trusts the power supply or the
201 storage system to not lose writes
202 - Added the option of using syslog for logging instead of, or in
203 addition to, Ganeti's own log files
204 - Removed boot restriction for paravirtual NICs for KVM, recent versions
205 can indeed boot from a paravirtual NIC
206 - Added a generic debug level for many operations; while this is not
207 used widely yet, it allows one to pass the debug value all the way to
209 - Enhanced the hooks environment for instance moves (failovers,
210 migrations) where the primary/secondary nodes changed during the
211 operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
212 - Enhanced data validations for many user-supplied values; one important
213 item is the restrictions imposed on instance and node names, which
214 might reject some (invalid) host names
215 - Add a configure-time option to disable file-based storage, if it's not
216 needed; this allows greater security separation between the master
217 node and the other nodes from the point of view of the inter-node RPC
219 - Added user notification in interactive tools if job is waiting in the
220 job queue or trying to acquire locks
221 - Added log messages when a job is waiting for locks
222 - Added filtering by node tags in instance operations which admit
223 multiple instances (start, stop, reboot, reinstall)
224 - Added a new tool for cluster mergers, ``cluster-merge``
225 - Parameters from command line which are of the form ``a=b,c=d`` can now
226 use backslash escapes to pass in values which contain commas,
227 e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
229 - For KVM, the instance name is the first parameter passed to KVM, so
230 that it's more visible in the process list
236 *(Released Tue, 2 Mar 2010)*
238 Ganeti 2.1 brings many improvements with it. Major changes:
240 - Added infrastructure to ease automated disk repairs
241 - Added new daemon to export configuration data in a cheaper way than
243 - Instance NICs can now be routed instead of being associated with a
245 - Improved job locking logic to reduce impact of jobs acquiring multiple
246 locks waiting for other long-running jobs
248 In-depth implementation details can be found in the Ganeti 2.1 design
254 - Added chroot hypervisor
255 - Added more options to xen-hvm hypervisor (``kernel_path`` and
257 - Added more options to xen-pvm hypervisor (``use_bootloader``,
258 ``bootloader_path`` and ``bootloader_args``)
259 - Added the ``use_localtime`` option for the xen-hvm and kvm
260 hypervisors, and the default value for this has changed to false (in
261 2.0 xen-hvm always enabled it)
262 - Added luxi call to submit multiple jobs in one go
263 - Added cluster initialization option to not modify ``/etc/hosts``
265 - Added network interface parameters
266 - Added dry run mode to some LUs
267 - Added RAPI resources:
269 - ``/2/instances/[instance_name]/info``
270 - ``/2/instances/[instance_name]/replace-disks``
271 - ``/2/nodes/[node_name]/evacuate``
272 - ``/2/nodes/[node_name]/migrate``
273 - ``/2/nodes/[node_name]/role``
274 - ``/2/nodes/[node_name]/storage``
275 - ``/2/nodes/[node_name]/storage/modify``
276 - ``/2/nodes/[node_name]/storage/repair``
278 - Added OpCodes to evacuate or migrate all instances on a node
279 - Added new command to list storage elements on nodes (``gnt-node
280 list-storage``) and modify them (``gnt-node modify-storage``)
281 - Added new ssconf files with master candidate IP address
282 (``ssconf_master_candidates_ips``), node primary IP address
283 (``ssconf_node_primary_ips``) and node secondary IP address
284 (``ssconf_node_secondary_ips``)
285 - Added ``ganeti-confd`` and a client library to query the Ganeti
286 configuration via UDP
287 - Added ability to run hooks after cluster initialization and before
289 - Added automatic mode for disk replace (``gnt-instance replace-disks
291 - Added ``gnt-instance recreate-disks`` to re-create (empty) disks
292 after catastrophic data-loss
293 - Added ``gnt-node repair-storage`` command to repair damaged LVM volume
295 - Added ``gnt-instance move`` command to move instances
296 - Added ``gnt-cluster watcher`` command to control watcher
297 - Added ``gnt-node powercycle`` command to powercycle nodes
298 - Added new job status field ``lock_status``
299 - Added parseable error codes to cluster verification (``gnt-cluster
300 verify --error-codes``) and made output less verbose (use
301 ``--verbose`` to restore previous behaviour)
302 - Added UUIDs to the main config entities (cluster, nodes, instances)
303 - Added support for OS variants
304 - Added support for hashed passwords in the Ganeti remote API users file
306 - Added option to specify maximum timeout on instance shutdown
307 - Added ``--no-ssh-init`` option to ``gnt-cluster init``
308 - Added new helper script to start and stop Ganeti daemons
309 (``daemon-util``), with the intent to reduce the work necessary to
310 adjust Ganeti for non-Debian distributions and to start/stop daemons
312 - Added more unittests
313 - Fixed critical bug in ganeti-masterd startup
314 - Removed the configure-time ``kvm-migration-port`` parameter, this is
315 now customisable at the cluster level for both the KVM and Xen
316 hypervisors using the new ``migration_port`` parameter
317 - Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
318 reinstalling an instance
319 - Allowed ``@`` in tag names
320 - Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
321 - Many documentation updates
322 - Distribute hypervisor files on ``gnt-cluster redist-conf``
323 - ``gnt-instance reinstall`` can now reinstall multiple instances
324 - Updated many command line parameters
325 - Introduced new OS API version 15
326 - No longer support a default hypervisor
327 - Treat virtual LVs as inexistent
328 - Improved job locking logic to reduce lock contention
329 - Match instance and node names case insensitively
330 - Reimplemented bash completion script to be more complete
337 *(Released Thu, 4 Feb 2010)*
339 - Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
340 - Fix a string formatting bug
341 - Improve safety of the code in some error paths
342 - Improve data validation in the master of values returned from nodes
348 *(Released Thu, 17 Dec 2009)*
350 - Fix security issue due to missing validation of iallocator names; this
351 allows local and remote execution of arbitrary executables
352 - Fix failure of gnt-node list during instance removal
353 - Ship the RAPI documentation in the archive
359 *(Released Wed, 30 Sep 2009)*
361 - Fixed many wrong messages
362 - Fixed a few bugs related to the locking library
363 - Fixed MAC checking at instance creation time
364 - Fixed a DRBD parsing bug related to gaps in /proc/drbd
365 - Fixed a few issues related to signal handling in both daemons and
367 - Fixed the example startup script provided
368 - Fixed insserv dependencies in the example startup script (patch from
370 - Fixed handling of drained nodes in the iallocator framework
371 - Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
373 - Fixed error related to invalid job IDs in job polling
374 - Fixed job/opcode persistence on unclean master shutdown
375 - Fixed handling of partial job processing after unclean master
377 - Fixed error reporting from LUs, previously all errors were converted
378 into execution errors
379 - Fixed error reporting from burnin
380 - Decreased significantly the memory usage of the job queue
381 - Optimised slightly multi-job submission
382 - Optimised slightly opcode loading
383 - Backported the multi-job submit framework from the development
384 branch; multi-instance start and stop should be faster
385 - Added script to clean archived jobs after 21 days; this will reduce
386 the size of the queue directory
387 - Added some extra checks in disk size tracking
388 - Added an example ethers hook script
389 - Added a cluster parameter that prevents Ganeti from modifying of
391 - Added more node information to RAPI responses
392 - Added a ``gnt-job watch`` command that allows following the ouput of a
394 - Added a bind-address option to ganeti-rapi
395 - Added more checks to the configuration verify
396 - Enhanced the burnin script such that some operations can be retried
398 - Converted instance reinstall to multi-instance model
404 *(Released Fri, 7 Aug 2009)*
406 - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
407 to allow using the pre-2.0.2 behaviour in activation, if any existing
408 instances have mismatched disk sizes in the configuration
409 - Added ``gnt-cluster repair-disk-sizes`` command to check and update
410 any configuration mismatches for disk sizes
411 - Added ``gnt-master cluste-failover --no-voting`` to allow master
412 failover to work on two-node clusters
413 - Fixed the ``--net`` option of ``gnt-backup import``, which was
415 - Fixed detection of OS script errors in ``gnt-backup export``
416 - Fixed exit code of ``gnt-backup export``
422 *(Released Fri, 17 Jul 2009)*
424 - Added experimental support for stripped logical volumes; this should
425 enhance performance but comes with a higher complexity in the block
426 device handling; stripping is only enabled when passing
427 ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
428 affected even in the non-stripped mode
429 - Improved resiliency against transient failures at the end of DRBD
430 resyncs, and in general of DRBD resync checks
431 - Fixed a couple of issues with exports and snapshot errors
432 - Fixed a couple of issues in instance listing
433 - Added display of the disk size in ``gnt-instance info``
434 - Fixed checking for valid OSes in instance creation
435 - Fixed handling of the "vcpus" parameter in instance listing and in
436 general of invalid parameters
437 - Fixed http server library, and thus RAPI, to handle invalid
438 username/password combinations correctly; this means that now they
439 report unauthorized for queries too, not only for modifications,
440 allowing earlier detect of configuration problems
441 - Added a new "role" node list field, equivalent to the master/master
442 candidate/drained/offline flags combinations
443 - Fixed cluster modify and changes of candidate pool size
444 - Fixed cluster verify error messages for wrong files on regular nodes
445 - Fixed a couple of issues with node demotion from master candidate role
446 - Fixed node readd issues
447 - Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
448 - Added a new ``--no-voting`` option for masterfailover to fix failover
449 on two-nodes clusters when the former master node is unreachable
450 - Added instance reinstall over RAPI
456 *(Released Tue, 16 Jun 2009)*
458 - added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
459 allow re-adding the start in single-user option (regression from 1.2)
460 - the watcher writes the instance status to a file, to allow monitoring
461 to report the instance status (from the master) based on cached
462 results of the watcher's queries; while this can get stale if the
463 watcher is being locked due to other work on the cluster, this is
465 - the watcher now also restarts the node daemon and the rapi daemon if
467 - fixed the watcher to handle full and drained queue cases
468 - hooks export more instance data in the environment, which helps if
469 hook scripts need to take action based on the instance's properties
470 (no longer need to query back into ganeti)
471 - instance failovers when the instance is stopped do not check for free
472 RAM, so that failing over a stopped instance is possible in low memory
474 - rapi uses queries for tags instead of jobs (for less job traffic), and
475 for cluster tags it won't talk to masterd at all but read them from
477 - a couple of error handling fixes in RAPI
478 - drbd handling: improved the error handling of inconsistent disks after
479 resync to reduce the frequency of "there are some degraded disks for
480 this instance" messages
481 - fixed a bug in live migration when DRBD doesn't want to reconnect (the
482 error handling path called a wrong function name)
488 *(Released Wed, 27 May 2009)*
490 - no changes from rc5
493 Version 2.0 release candidate 5
494 -------------------------------
496 *(Released Wed, 20 May 2009)*
498 - fix a couple of bugs (validation, argument checks)
499 - fix ``gnt-cluster getmaster`` on non-master nodes (regression)
500 - some small improvements to RAPI and IAllocator
501 - make watcher automatically start the master daemon if down
504 Version 2.0 release candidate 4
505 -------------------------------
507 *(Released Mon, 27 Apr 2009)*
509 - change the OS list to not require locks; this helps with big clusters
510 - fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
511 volume group is broken
512 - ``gnt-instance info``, without any arguments, doesn't run for all
513 instances anymore; either pass ``--all`` or pass the desired
514 instances; this helps against mistakes on big clusters where listing
515 the information for all instances takes a long time
516 - miscellaneous doc and man pages fixes
519 Version 2.0 release candidate 3
520 -------------------------------
522 *(Released Wed, 8 Apr 2009)*
524 - Change the internal locking model of some ``gnt-node`` commands, in
525 order to reduce contention (and blocking of master daemon) when
526 batching many creation/reinstall jobs
527 - Fixes to Xen soft reboot
528 - No longer build documentation at build time, instead distribute it in
529 the archive, in order to reduce the need for the whole docbook/rst
533 Version 2.0 release candidate 2
534 -------------------------------
536 *(Released Fri, 27 Mar 2009)*
538 - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
539 - Fix watcher startup sequence, improves the behaviour of busy clusters
540 - Some other fixes in ``gnt-cluster verify``, ``gnt-instance
541 replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
542 bind address and other places
543 - Some documentation fixes and updates
546 Version 2.0 release candidate 1
547 -------------------------------
549 *(Released Mon, 2 Mar 2009)*
551 - More documentation updates, now all docs should be more-or-less
553 - A couple of small fixes (mixed hypervisor clusters, offline nodes,
555 - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
557 - Fix an issue related to $libdir/run/ganeti and cluster creation
563 *(Released Thu, 19 Feb 2009)*
565 - Xen PVM and KVM have switched the default value for the instance root
566 disk to the first partition on the first drive, instead of the whole
567 drive; this means that the OS installation scripts must be changed
569 - Man pages have been updated
570 - RAPI has been switched by default to HTTPS, and the exported functions
571 should all work correctly
572 - RAPI v1 has been removed
573 - Many improvements to the KVM hypervisor
574 - Block device errors are now better reported
575 - Many other bugfixes and small improvements
581 *(Released Mon, 26 Jan 2009)*
583 - Version 2 is a general rewrite of the code and therefore the
584 differences are too many to list, see the design document for 2.0 in
585 the ``doc/`` subdirectory for more details
586 - In this beta version there is not yet a migration path from 1.2 (there
587 will be one in the final 2.0 release)
588 - A few significant changes are:
590 - all commands are executed by a daemon (``ganeti-masterd``) and the
591 various ``gnt-*`` commands are just front-ends to it
592 - all the commands are entered into, and executed from a job queue,
593 see the ``gnt-job(8)`` manpage
594 - the RAPI daemon supports read-write operations, secured by basic
595 HTTP authentication on top of HTTPS
596 - DRBD version 0.7 support has been removed, DRBD 8 is the only
597 supported version (when migrating from Ganeti 1.2 to 2.0, you need
598 to migrate to DRBD 8 first while still running Ganeti 1.2)
599 - DRBD devices are using statically allocated minor numbers, which
600 will be assigned to existing instances during the migration process
601 - there is support for both Xen PVM and Xen HVM instances running on
603 - KVM virtualization is supported too
604 - file-based storage has been implemented, which means that it is
605 possible to run the cluster without LVM and DRBD storage, for
606 example using a shared filesystem exported from shared storage (and
607 still have live migration)
613 *(Released Tue, 13 Jan 2009)*
615 - Change the default reboot type in ``gnt-instance reboot`` to "hard"
616 - Reuse the old instance mac address by default on instance import, if
617 the instance name is the same.
618 - Handle situations in which the node info rpc returns incomplete
620 - Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
621 - Improved version of batcher:
624 - instance mac address support
625 - support for HVM clusters/instances
627 - Add an option to show the number of cpu sockets and nodes in
629 - Support OSes that handle more than one version of the OS api (but do
630 not change the current API in any other way)
631 - Fix ``gnt-node migrate``
632 - ``gnt-debug`` man page
633 - Fixes various more typos and small issues
634 - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
640 *(Released Wed, 24 Sep 2008)*
642 - new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
643 type of disk exported to fully virtualized instances.
644 - provide access to the serial console of HVM instances
645 - instance auto_balance flag, set by default. If turned off it will
646 avoid warnings on cluster verify if there is not enough memory to fail
647 over an instance. in the future it will prevent automatically failing
648 it over when we will support that.
649 - batcher tool for instance creation, see ``tools/README.batcher``
650 - ``gnt-instance reinstall --select-os`` to interactively select a new
651 operating system when reinstalling an instance.
652 - when changing the memory amount on instance modify a check has been
653 added that the instance will be able to start. also warnings are
654 emitted if the instance will not be able to fail over, if auto_balance
656 - documentation fixes
657 - sync fields between ``gnt-instance list/modify/add/import``
658 - fix a race condition in drbd when the sync speed was set after giving
659 the device a remote peer.
665 *(Released Tue, 22 Jul 2008)*
667 - note: the allowed size and number of tags per object were reduced
668 - fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
669 - fixed twisted 8.x compatibility
670 - fixed ``gnt-instance replace-disks`` with iallocator
671 - add TCP keepalives on twisted connections to detect restarted nodes
672 - disk increase support, see ``gnt-instance grow-disk``
673 - implement bulk node/instance query for RAPI
674 - add tags in node/instance listing (optional)
675 - experimental migration (and live migration) support, read the man page
676 for ``gnt-instance migrate``
677 - the ``ganeti-watcher`` logs are now timestamped, and the watcher also
678 has some small improvements in handling its state file
684 *(Released Fri, 13 Jun 2008)*
686 - Experimental readonly, REST-based remote API implementation;
687 automatically started on master node, TCP port 5080, if enabled by
688 ``--enable-rapi`` parameter to configure script.
689 - Instance allocator support. Add and import instance accept a
690 ``--iallocator`` parameter, and call that instance allocator to decide
691 which node to use for the instance. The iallocator document describes
692 what's expected from an allocator script.
693 - ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
694 ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
695 node is lost there is still enough memory to fail over the instances
697 - ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
698 ``gnt-cluster verify``, to check for site-specific compliance. All the
699 hooks will run, and their output, if any, will be displayed. Any
700 failing hook will make the verification return an error value.
701 - ``gnt-cluster verify`` now checks that its peers are reachable on the
702 primary and secondary interfaces
703 - ``gnt-node add`` now supports the ``--readd`` option, to readd a node
704 that is still declared as part of the cluster and has failed.
705 - ``gnt-* list`` commands now accept a new ``-o +field`` way of
706 specifying output fields, that just adds the chosen fields to the
708 - ``gnt-backup`` now has a new ``remove`` command to delete an existing
709 export from the filesystem.
710 - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
711 have been added. Using them you can enable/disable acpi and pae
712 support, and specify a path for a cd image to be exported to the
713 instance. These parameters as the name suggest only work on HVM
715 - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
716 PAE support will be set to the previously hardcoded values, but the
717 (previously hardcoded) path to the CDROM ISO image will be unset and
718 if required, needs to be set manually with ``gnt-instance modify``
720 - The address to which an instance's VNC console is bound is now
721 selectable per-instance, rather than being cluster wide. Of course
722 this only applies to instances controlled via VNC, so currently just
723 applies to HVM clusters.
729 *(Released Mon, 18 Feb 2008)*
731 - more tweaks to the disk activation code (especially helpful for DRBD)
732 - change the default ``gnt-instance list`` output format, now there is
733 one combined status field (see the manpage for the exact values this
735 - some more fixes for the mac export to hooks change
736 - make Ganeti not break with DRBD 8.2.x (which changed the version
737 format in ``/proc/drbd``) (issue 24)
738 - add an upgrade tool from "remote_raid1" disk template to "drbd" disk
739 template, allowing migration from DRBD0.7+MD to DRBD8
745 *(Released Wed, 30 Jan 2008)*
747 - fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
749 - add command aliases infrastructure and a few aliases
750 - allow listing of VCPUs in the ``gnt-instance list`` and improve the
751 man pages and the ``--help`` option of ``gnt-node
752 list``/``gnt-instance list``
753 - fix ``gnt-backup list`` with down nodes (issue 21)
754 - change the tools location (move from $pkgdatadir to $pkglibdir/tools)
755 - fix the dist archive and add a check for including svn/git files in
757 - some developer-related changes: improve the burnin and the QA suite,
758 add an upload script for testing during development
764 *(Released Wed, 16 Jan 2008)*
766 - experimental HVM support, read the install document, section
767 "Initializing the cluster"
768 - allow for the PVM hypervisor per-instance kernel and initrd paths
769 - add a new command ``gnt-cluster verify-disks`` which uses a new
770 algorithm to improve the reconnection of the DRBD pairs if the device
771 on the secondary node has gone away
772 - make logical volume code auto-activate LVs at disk activation time
773 - slightly improve the speed of activating disks
774 - allow specification of the MAC address at instance creation time, and
775 changing it later via ``gnt-instance modify``
776 - fix handling of external commands that generate lots of output on
778 - update documentation with regard to minimum version of DRBD8 supported
784 *(Released Tue, 4 Dec 2007)*
786 - Log the ``xm create`` output to the node daemon log on failure (to
787 help diagnosing the error)
788 - In debug mode, log all external commands output if failed to the logs
789 - Change parsing of lvm commands to ignore stderr
795 *(Released Wed, 28 Nov 2007)*
797 - Another round of updates to the DRBD 8 code to deal with more failures
798 in the replace secondary node operation
799 - Some more logging of failures in disk operations (lvm, drbd)
800 - A few documentation updates
807 *(Released Tue, 13 Nov 2007)*
809 - Change configuration file format from Python's Pickle to JSON.
810 Upgrading is possible using the cfgupgrade utility.
811 - Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
812 faster replace disks and is more stable (DRBD 8 has many improvements
813 compared to DRBD 0.7)
814 - Added command line tags support (see man pages for ``gnt-instance``,
815 ``gnt-node``, ``gnt-cluster``)
816 - Added instance rename support
817 - Added multi-instance startup/shutdown
818 - Added cluster rename support
819 - Added ``gnt-node evacuate`` to simplify some node operations
820 - Added instance reboot operation that can speedup reboot as compared to
822 - Soften the requirement that hostnames are in FQDN format
823 - The ``ganeti-watcher`` now activates drbd pairs after secondary node
825 - Removed dependency on debian's patched fping that uses the
826 non-standard ``-S`` option
827 - Now the OS definitions are searched for in multiple, configurable
828 paths (easier for distros to package)
829 - Some changes to the hooks infrastructure (especially the new
830 post-configuration update hook)
831 - Other small bugfixes
833 .. vim: set textwidth=72 :