7 - Added tool (``move-instance``) and infrastructure to move instances
8 between separate clusters (see :doc:`separate documentation
9 <move-instance>` and :doc:`design document <design-2.2>`)
10 - Added per-request RPC timeout
11 - RAPI now requires a Content-Type header for requests with a body (e.g.
12 ``PUT`` or ``POST``) which must be set to ``application/json`` (see
13 RFC2616 (HTTP/1.1), section 7.2.1)
14 - ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
16 - Implemented initial support for running Ganeti daemons as separate
17 users, see configure-time flags ``--with-user-prefix`` and
18 ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
20 - Instances can be removed after export (``gnt-backup export
22 - Self-signed certificates generated by Ganeti now use a 2048 bit RSA
23 key (instead of 1024 bit)
24 - Added new cluster configuration file for cluster domain secret
25 - Import/export now use SSL instead of SSH
26 - Added support for showing estimated time when exporting an instance,
27 see the ``ganeti-os-interface(7)`` manpage and look for
34 *(Released Thu, 3 Jun 2010)*
36 A medium sized development cycle. Some new features, and some
37 fixes/small improvements/cleanups.
42 The node deamon now tries to mlock itself into memory, unless the
43 ``--no-mlock`` flag is passed. It also doesn't fail if it can't write
44 its logs, and falls back to console logging. This allows emergency
45 features such as ``gnt-node powercycle`` to work even in the event of a
46 broken node disk (tested offlining the disk hosting the node's
47 filesystem and dropping its memory caches; don't try this at home)
49 KVM: add vhost-net acceleration support. It can be tested with a new
50 enough version of the kernel and of qemu-kvm.
52 KVM: Add instance chrooting feature. If you use privilege dropping for
53 your VMs you can also now force them to chroot to an empty directory,
54 before starting the emulated guest.
56 KVM: Add maximum migration bandwith and maximum downtime tweaking
57 support (requires a new-enough version of qemu-kvm).
59 Cluster verify will now warn if the master node doesn't have the master
62 Add a new (incompatible) instance creation request format to RAPI which
63 supports all parameters (previously only a subset was supported, and it
64 wasn't possible to extend the old format to accomodate all the new
65 features. The old format is still supported, and a client can check for
66 this feature, before using it, by checking for its presence in the
67 ``features`` RAPI resource.
69 Now with ancient latin support. Try it passing the ``--roman`` option to
70 ``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
71 (requires the python-roman module to be installed, in order to work).
76 As usual many internal code refactorings, documentation updates, and
79 - Lots of improvements and cleanups to the experimental Remote API
80 (RAPI) client library.
81 - A new unit test suite for the core daemon libraries.
82 - A fix to creating missing directories makes sure the umask is not
83 applied anymore. This enforces the same directory permissions
85 - Better handling terminating daemons with ctrl+c (used when running
86 them in debugging mode).
87 - Fix a race condition in live migrating a KVM instance, when stat()
88 on the old proc status file returned EINVAL, which is an unexpected
90 - Fixed manpage checking with newer man and utf-8 charachters. But now
91 you need the en_US.UTF-8 locale enabled to build Ganeti from git.
97 *(Released Fri, 7 May 2010)*
99 Fix a bug which prevented untagged KVM instances from starting.
105 *(Released Fri, 7 May 2010)*
107 Another release with a long development cycle, during which many
108 different features were added.
113 The KVM hypervisor now can run the individual instances as non-root, to
114 reduce the impact of a VM being hijacked due to bugs in the
115 hypervisor. It is possible to run all instances as a single (non-root)
116 user, to manually specify a user for each instance, or to dynamically
117 allocate a user out of a cluster-wide pool to each instance, with the
118 guarantee that no two instances will run under the same user ID on any
121 An experimental RAPI client library, that can be used standalone
122 (without the other Ganeti libraries), is provided in the source tree as
123 ``lib/rapi/client.py``. Note this client might change its interface in
124 the future, as we iterate on its capabilities.
126 A new command, ``gnt-cluster renew-crypto`` has been added to easily
127 replace the cluster's certificates and crypto keys. This might help in
128 case they have been compromised, or have simply expired.
130 A new disk option for instance creation has been added that allows one
131 to "adopt" currently existing logical volumes, with data
132 preservation. This should allow easier migration to Ganeti from
133 unmanaged (or managed via other software) instances.
135 Another disk improvement is the possibility to convert between redundant
136 (DRBD) and plain (LVM) disk configuration for an instance. This should
137 allow better scalability (starting with one node and growing the
138 cluster, or shrinking a two-node cluster to one node).
140 A new feature that could help with automated node failovers has been
141 implemented: if a node sees itself as offline (by querying the master
142 candidates), it will try to shutdown (hard) all instances and any active
143 DRBD devices. This reduces the risk of duplicate instances if an
144 external script automatically failovers the instances on such nodes. To
145 enable this, the cluster parameter ``maintain_node_health`` should be
146 enabled; in the future this option (per the name) will enable other
147 automatic maintenance features.
149 Instance export/import now will reuse the original instance
150 specifications for all parameters; that means exporting an instance,
151 deleting it and the importing it back should give an almost identical
152 instance. Note that the default import behaviour has changed from
153 before, where it created only one NIC; now it recreates the original
156 Cluster verify has added a few new checks: SSL certificates validity,
157 /etc/hosts consistency across the cluster, etc.
162 As usual, many internal changes were done, documentation fixes,
165 - Fixed cluster initialization with disabled cluster storage (regression
167 - File-based storage supports growing the disks
168 - Fixed behaviour of node role changes
169 - Fixed cluster verify for some corner cases, plus a general rewrite of
170 cluster verify to allow future extension with more checks
171 - Fixed log spamming by watcher and node daemon (regression introduced
173 - Fixed possible validation issues when changing the list of enabled
175 - Fixed cleanup of /etc/hosts during node removal
176 - Fixed RAPI response for invalid methods
177 - Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
178 - Multiple small improvements to the KVM hypervisor (VNC usage, booting
179 from ide disks, etc.)
180 - Allow OS changes without re-installation (to record a changed OS
181 outside of Ganeti, or to allow OS renames)
182 - Allow instance creation without OS installation (useful for example if
183 the OS will be installed manually, or restored from a backup not in
185 - Implemented option to make cluster ``copyfile`` use the replication
187 - Added list of enabled hypervisors to ssconf (possibly useful for
189 - Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
191 - A partial form of node re-IP is possible via node readd, which now
192 allows changed node primary IP
193 - Command line utilities now show an informational message if the job is
195 - The logs of the master daemon now show the PID/UID/GID of the
202 *(Released Fri, 12 Mar 2010)*
204 During the 2.1.0 long release candidate cycle, a lot of improvements and
205 changes have accumulated with were released later as 2.1.1.
210 The node evacuate command (``gnt-node evacuate``) was significantly
211 rewritten, and as such the IAllocator protocol was changed - a new
212 request type has been added. This unfortunate change during a stable
213 series is designed to improve performance of node evacuations; on
214 clusters with more than about five nodes and which are well-balanced,
215 evacuation should proceed in parallel for all instances of the node
216 being evacuated. As such, any existing IAllocator scripts need to be
217 updated, otherwise the above command will fail due to the unknown
218 request. The provided "dumb" allocator has not been updated; but the
219 ganeti-htools package supports the new protocol since version 0.2.4.
221 Another important change is increased validation of node and instance
222 names. This might create problems in special cases, if invalid host
223 names are being used.
225 Also, a new layer of hypervisor parameters has been added, that sits at
226 OS level between the cluster defaults and the instance ones. This allows
227 customisation of virtualization parameters depending on the installed
228 OS. For example instances with OS 'X' may have a different KVM kernel
229 (or any other parameter) than the cluster defaults. This is intended to
230 help managing a multiple OSes on the same cluster, without manual
231 modification of each instance's parameters.
233 A tool for merging clusters, ``cluster-merge``, has been added in the
239 - Improved the int/float conversions that should make the code more
240 robust in face of errors from the node daemons
241 - Fixed the remove node code in case of internal configuration errors
242 - Fixed the node daemon behaviour in face of inconsistent queue
243 directory (e.g. read-only file-system where we can't open the files
245 - Fixed the behaviour of gnt-node modify for master candidate demotion;
246 now it either aborts cleanly or, if given the new “auto_promote”
247 parameter, will automatically promote other nodes as needed
248 - Fixed compatibility with (unreleased yet) Python 2.6.5 that would
249 completely prevent Ganeti from working
250 - Fixed bug for instance export when not all disks were successfully
252 - Fixed behaviour of node add when the new node is slow in starting up
254 - Fixed handling of signals in the LUXI client, which should improve
255 behaviour of command-line scripts
256 - Added checks for invalid node/instance names in the configuration (now
257 flagged during cluster verify)
258 - Fixed watcher behaviour for disk activation errors
259 - Fixed two potentially endless loops in http library, which led to the
260 RAPI daemon hanging and consuming 100% CPU in some cases
261 - Fixed bug in RAPI daemon related to hashed passwords
262 - Fixed bug for unintended qemu-level bridging of multi-NIC KVM
264 - Enhanced compatibility with non-Debian OSes, but not using absolute
265 path in some commands and allowing customisation of the ssh
266 configuration directory
267 - Fixed possible future issue with new Python versions by abiding to the
268 proper use of ``__slots__`` attribute on classes
269 - Added checks that should prevent directory traversal attacks
270 - Many documentation fixes based on feedback from users
275 - Added an “early_release” more for instance replace disks and node
276 evacuate, where we release locks earlier and thus allow higher
277 parallelism within the cluster
278 - Added watcher hooks, intended to allow the watcher to restart other
279 daemons (e.g. from the ganeti-nbma project), but they can be used of
280 course for any other purpose
281 - Added a compile-time disable for DRBD barriers, to increase
282 performance if the administrator trusts the power supply or the
283 storage system to not lose writes
284 - Added the option of using syslog for logging instead of, or in
285 addition to, Ganeti's own log files
286 - Removed boot restriction for paravirtual NICs for KVM, recent versions
287 can indeed boot from a paravirtual NIC
288 - Added a generic debug level for many operations; while this is not
289 used widely yet, it allows one to pass the debug value all the way to
291 - Enhanced the hooks environment for instance moves (failovers,
292 migrations) where the primary/secondary nodes changed during the
293 operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
294 - Enhanced data validations for many user-supplied values; one important
295 item is the restrictions imposed on instance and node names, which
296 might reject some (invalid) host names
297 - Add a configure-time option to disable file-based storage, if it's not
298 needed; this allows greater security separation between the master
299 node and the other nodes from the point of view of the inter-node RPC
301 - Added user notification in interactive tools if job is waiting in the
302 job queue or trying to acquire locks
303 - Added log messages when a job is waiting for locks
304 - Added filtering by node tags in instance operations which admit
305 multiple instances (start, stop, reboot, reinstall)
306 - Added a new tool for cluster mergers, ``cluster-merge``
307 - Parameters from command line which are of the form ``a=b,c=d`` can now
308 use backslash escapes to pass in values which contain commas,
309 e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
311 - For KVM, the instance name is the first parameter passed to KVM, so
312 that it's more visible in the process list
318 *(Released Tue, 2 Mar 2010)*
320 Ganeti 2.1 brings many improvements with it. Major changes:
322 - Added infrastructure to ease automated disk repairs
323 - Added new daemon to export configuration data in a cheaper way than
325 - Instance NICs can now be routed instead of being associated with a
327 - Improved job locking logic to reduce impact of jobs acquiring multiple
328 locks waiting for other long-running jobs
330 In-depth implementation details can be found in the Ganeti 2.1 design
336 - Added chroot hypervisor
337 - Added more options to xen-hvm hypervisor (``kernel_path`` and
339 - Added more options to xen-pvm hypervisor (``use_bootloader``,
340 ``bootloader_path`` and ``bootloader_args``)
341 - Added the ``use_localtime`` option for the xen-hvm and kvm
342 hypervisors, and the default value for this has changed to false (in
343 2.0 xen-hvm always enabled it)
344 - Added luxi call to submit multiple jobs in one go
345 - Added cluster initialization option to not modify ``/etc/hosts``
347 - Added network interface parameters
348 - Added dry run mode to some LUs
349 - Added RAPI resources:
351 - ``/2/instances/[instance_name]/info``
352 - ``/2/instances/[instance_name]/replace-disks``
353 - ``/2/nodes/[node_name]/evacuate``
354 - ``/2/nodes/[node_name]/migrate``
355 - ``/2/nodes/[node_name]/role``
356 - ``/2/nodes/[node_name]/storage``
357 - ``/2/nodes/[node_name]/storage/modify``
358 - ``/2/nodes/[node_name]/storage/repair``
360 - Added OpCodes to evacuate or migrate all instances on a node
361 - Added new command to list storage elements on nodes (``gnt-node
362 list-storage``) and modify them (``gnt-node modify-storage``)
363 - Added new ssconf files with master candidate IP address
364 (``ssconf_master_candidates_ips``), node primary IP address
365 (``ssconf_node_primary_ips``) and node secondary IP address
366 (``ssconf_node_secondary_ips``)
367 - Added ``ganeti-confd`` and a client library to query the Ganeti
368 configuration via UDP
369 - Added ability to run hooks after cluster initialization and before
371 - Added automatic mode for disk replace (``gnt-instance replace-disks
373 - Added ``gnt-instance recreate-disks`` to re-create (empty) disks
374 after catastrophic data-loss
375 - Added ``gnt-node repair-storage`` command to repair damaged LVM volume
377 - Added ``gnt-instance move`` command to move instances
378 - Added ``gnt-cluster watcher`` command to control watcher
379 - Added ``gnt-node powercycle`` command to powercycle nodes
380 - Added new job status field ``lock_status``
381 - Added parseable error codes to cluster verification (``gnt-cluster
382 verify --error-codes``) and made output less verbose (use
383 ``--verbose`` to restore previous behaviour)
384 - Added UUIDs to the main config entities (cluster, nodes, instances)
385 - Added support for OS variants
386 - Added support for hashed passwords in the Ganeti remote API users file
388 - Added option to specify maximum timeout on instance shutdown
389 - Added ``--no-ssh-init`` option to ``gnt-cluster init``
390 - Added new helper script to start and stop Ganeti daemons
391 (``daemon-util``), with the intent to reduce the work necessary to
392 adjust Ganeti for non-Debian distributions and to start/stop daemons
394 - Added more unittests
395 - Fixed critical bug in ganeti-masterd startup
396 - Removed the configure-time ``kvm-migration-port`` parameter, this is
397 now customisable at the cluster level for both the KVM and Xen
398 hypervisors using the new ``migration_port`` parameter
399 - Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
400 reinstalling an instance
401 - Allowed ``@`` in tag names
402 - Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
403 - Many documentation updates
404 - Distribute hypervisor files on ``gnt-cluster redist-conf``
405 - ``gnt-instance reinstall`` can now reinstall multiple instances
406 - Updated many command line parameters
407 - Introduced new OS API version 15
408 - No longer support a default hypervisor
409 - Treat virtual LVs as inexistent
410 - Improved job locking logic to reduce lock contention
411 - Match instance and node names case insensitively
412 - Reimplemented bash completion script to be more complete
419 *(Released Thu, 4 Feb 2010)*
421 - Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
422 - Fix a string formatting bug
423 - Improve safety of the code in some error paths
424 - Improve data validation in the master of values returned from nodes
430 *(Released Thu, 17 Dec 2009)*
432 - Fix security issue due to missing validation of iallocator names; this
433 allows local and remote execution of arbitrary executables
434 - Fix failure of gnt-node list during instance removal
435 - Ship the RAPI documentation in the archive
441 *(Released Wed, 30 Sep 2009)*
443 - Fixed many wrong messages
444 - Fixed a few bugs related to the locking library
445 - Fixed MAC checking at instance creation time
446 - Fixed a DRBD parsing bug related to gaps in /proc/drbd
447 - Fixed a few issues related to signal handling in both daemons and
449 - Fixed the example startup script provided
450 - Fixed insserv dependencies in the example startup script (patch from
452 - Fixed handling of drained nodes in the iallocator framework
453 - Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
455 - Fixed error related to invalid job IDs in job polling
456 - Fixed job/opcode persistence on unclean master shutdown
457 - Fixed handling of partial job processing after unclean master
459 - Fixed error reporting from LUs, previously all errors were converted
460 into execution errors
461 - Fixed error reporting from burnin
462 - Decreased significantly the memory usage of the job queue
463 - Optimised slightly multi-job submission
464 - Optimised slightly opcode loading
465 - Backported the multi-job submit framework from the development
466 branch; multi-instance start and stop should be faster
467 - Added script to clean archived jobs after 21 days; this will reduce
468 the size of the queue directory
469 - Added some extra checks in disk size tracking
470 - Added an example ethers hook script
471 - Added a cluster parameter that prevents Ganeti from modifying of
473 - Added more node information to RAPI responses
474 - Added a ``gnt-job watch`` command that allows following the ouput of a
476 - Added a bind-address option to ganeti-rapi
477 - Added more checks to the configuration verify
478 - Enhanced the burnin script such that some operations can be retried
480 - Converted instance reinstall to multi-instance model
486 *(Released Fri, 7 Aug 2009)*
488 - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
489 to allow using the pre-2.0.2 behaviour in activation, if any existing
490 instances have mismatched disk sizes in the configuration
491 - Added ``gnt-cluster repair-disk-sizes`` command to check and update
492 any configuration mismatches for disk sizes
493 - Added ``gnt-master cluste-failover --no-voting`` to allow master
494 failover to work on two-node clusters
495 - Fixed the ``--net`` option of ``gnt-backup import``, which was
497 - Fixed detection of OS script errors in ``gnt-backup export``
498 - Fixed exit code of ``gnt-backup export``
504 *(Released Fri, 17 Jul 2009)*
506 - Added experimental support for stripped logical volumes; this should
507 enhance performance but comes with a higher complexity in the block
508 device handling; stripping is only enabled when passing
509 ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
510 affected even in the non-stripped mode
511 - Improved resiliency against transient failures at the end of DRBD
512 resyncs, and in general of DRBD resync checks
513 - Fixed a couple of issues with exports and snapshot errors
514 - Fixed a couple of issues in instance listing
515 - Added display of the disk size in ``gnt-instance info``
516 - Fixed checking for valid OSes in instance creation
517 - Fixed handling of the "vcpus" parameter in instance listing and in
518 general of invalid parameters
519 - Fixed http server library, and thus RAPI, to handle invalid
520 username/password combinations correctly; this means that now they
521 report unauthorized for queries too, not only for modifications,
522 allowing earlier detect of configuration problems
523 - Added a new "role" node list field, equivalent to the master/master
524 candidate/drained/offline flags combinations
525 - Fixed cluster modify and changes of candidate pool size
526 - Fixed cluster verify error messages for wrong files on regular nodes
527 - Fixed a couple of issues with node demotion from master candidate role
528 - Fixed node readd issues
529 - Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
530 - Added a new ``--no-voting`` option for masterfailover to fix failover
531 on two-nodes clusters when the former master node is unreachable
532 - Added instance reinstall over RAPI
538 *(Released Tue, 16 Jun 2009)*
540 - added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
541 allow re-adding the start in single-user option (regression from 1.2)
542 - the watcher writes the instance status to a file, to allow monitoring
543 to report the instance status (from the master) based on cached
544 results of the watcher's queries; while this can get stale if the
545 watcher is being locked due to other work on the cluster, this is
547 - the watcher now also restarts the node daemon and the rapi daemon if
549 - fixed the watcher to handle full and drained queue cases
550 - hooks export more instance data in the environment, which helps if
551 hook scripts need to take action based on the instance's properties
552 (no longer need to query back into ganeti)
553 - instance failovers when the instance is stopped do not check for free
554 RAM, so that failing over a stopped instance is possible in low memory
556 - rapi uses queries for tags instead of jobs (for less job traffic), and
557 for cluster tags it won't talk to masterd at all but read them from
559 - a couple of error handling fixes in RAPI
560 - drbd handling: improved the error handling of inconsistent disks after
561 resync to reduce the frequency of "there are some degraded disks for
562 this instance" messages
563 - fixed a bug in live migration when DRBD doesn't want to reconnect (the
564 error handling path called a wrong function name)
570 *(Released Wed, 27 May 2009)*
572 - no changes from rc5
575 Version 2.0 release candidate 5
576 -------------------------------
578 *(Released Wed, 20 May 2009)*
580 - fix a couple of bugs (validation, argument checks)
581 - fix ``gnt-cluster getmaster`` on non-master nodes (regression)
582 - some small improvements to RAPI and IAllocator
583 - make watcher automatically start the master daemon if down
586 Version 2.0 release candidate 4
587 -------------------------------
589 *(Released Mon, 27 Apr 2009)*
591 - change the OS list to not require locks; this helps with big clusters
592 - fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
593 volume group is broken
594 - ``gnt-instance info``, without any arguments, doesn't run for all
595 instances anymore; either pass ``--all`` or pass the desired
596 instances; this helps against mistakes on big clusters where listing
597 the information for all instances takes a long time
598 - miscellaneous doc and man pages fixes
601 Version 2.0 release candidate 3
602 -------------------------------
604 *(Released Wed, 8 Apr 2009)*
606 - Change the internal locking model of some ``gnt-node`` commands, in
607 order to reduce contention (and blocking of master daemon) when
608 batching many creation/reinstall jobs
609 - Fixes to Xen soft reboot
610 - No longer build documentation at build time, instead distribute it in
611 the archive, in order to reduce the need for the whole docbook/rst
615 Version 2.0 release candidate 2
616 -------------------------------
618 *(Released Fri, 27 Mar 2009)*
620 - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
621 - Fix watcher startup sequence, improves the behaviour of busy clusters
622 - Some other fixes in ``gnt-cluster verify``, ``gnt-instance
623 replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
624 bind address and other places
625 - Some documentation fixes and updates
628 Version 2.0 release candidate 1
629 -------------------------------
631 *(Released Mon, 2 Mar 2009)*
633 - More documentation updates, now all docs should be more-or-less
635 - A couple of small fixes (mixed hypervisor clusters, offline nodes,
637 - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
639 - Fix an issue related to $libdir/run/ganeti and cluster creation
645 *(Released Thu, 19 Feb 2009)*
647 - Xen PVM and KVM have switched the default value for the instance root
648 disk to the first partition on the first drive, instead of the whole
649 drive; this means that the OS installation scripts must be changed
651 - Man pages have been updated
652 - RAPI has been switched by default to HTTPS, and the exported functions
653 should all work correctly
654 - RAPI v1 has been removed
655 - Many improvements to the KVM hypervisor
656 - Block device errors are now better reported
657 - Many other bugfixes and small improvements
663 *(Released Mon, 26 Jan 2009)*
665 - Version 2 is a general rewrite of the code and therefore the
666 differences are too many to list, see the design document for 2.0 in
667 the ``doc/`` subdirectory for more details
668 - In this beta version there is not yet a migration path from 1.2 (there
669 will be one in the final 2.0 release)
670 - A few significant changes are:
672 - all commands are executed by a daemon (``ganeti-masterd``) and the
673 various ``gnt-*`` commands are just front-ends to it
674 - all the commands are entered into, and executed from a job queue,
675 see the ``gnt-job(8)`` manpage
676 - the RAPI daemon supports read-write operations, secured by basic
677 HTTP authentication on top of HTTPS
678 - DRBD version 0.7 support has been removed, DRBD 8 is the only
679 supported version (when migrating from Ganeti 1.2 to 2.0, you need
680 to migrate to DRBD 8 first while still running Ganeti 1.2)
681 - DRBD devices are using statically allocated minor numbers, which
682 will be assigned to existing instances during the migration process
683 - there is support for both Xen PVM and Xen HVM instances running on
685 - KVM virtualization is supported too
686 - file-based storage has been implemented, which means that it is
687 possible to run the cluster without LVM and DRBD storage, for
688 example using a shared filesystem exported from shared storage (and
689 still have live migration)
695 *(Released Tue, 13 Jan 2009)*
697 - Change the default reboot type in ``gnt-instance reboot`` to "hard"
698 - Reuse the old instance mac address by default on instance import, if
699 the instance name is the same.
700 - Handle situations in which the node info rpc returns incomplete
702 - Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
703 - Improved version of batcher:
706 - instance mac address support
707 - support for HVM clusters/instances
709 - Add an option to show the number of cpu sockets and nodes in
711 - Support OSes that handle more than one version of the OS api (but do
712 not change the current API in any other way)
713 - Fix ``gnt-node migrate``
714 - ``gnt-debug`` man page
715 - Fixes various more typos and small issues
716 - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
722 *(Released Wed, 24 Sep 2008)*
724 - new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
725 type of disk exported to fully virtualized instances.
726 - provide access to the serial console of HVM instances
727 - instance auto_balance flag, set by default. If turned off it will
728 avoid warnings on cluster verify if there is not enough memory to fail
729 over an instance. in the future it will prevent automatically failing
730 it over when we will support that.
731 - batcher tool for instance creation, see ``tools/README.batcher``
732 - ``gnt-instance reinstall --select-os`` to interactively select a new
733 operating system when reinstalling an instance.
734 - when changing the memory amount on instance modify a check has been
735 added that the instance will be able to start. also warnings are
736 emitted if the instance will not be able to fail over, if auto_balance
738 - documentation fixes
739 - sync fields between ``gnt-instance list/modify/add/import``
740 - fix a race condition in drbd when the sync speed was set after giving
741 the device a remote peer.
747 *(Released Tue, 22 Jul 2008)*
749 - note: the allowed size and number of tags per object were reduced
750 - fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
751 - fixed twisted 8.x compatibility
752 - fixed ``gnt-instance replace-disks`` with iallocator
753 - add TCP keepalives on twisted connections to detect restarted nodes
754 - disk increase support, see ``gnt-instance grow-disk``
755 - implement bulk node/instance query for RAPI
756 - add tags in node/instance listing (optional)
757 - experimental migration (and live migration) support, read the man page
758 for ``gnt-instance migrate``
759 - the ``ganeti-watcher`` logs are now timestamped, and the watcher also
760 has some small improvements in handling its state file
766 *(Released Fri, 13 Jun 2008)*
768 - Experimental readonly, REST-based remote API implementation;
769 automatically started on master node, TCP port 5080, if enabled by
770 ``--enable-rapi`` parameter to configure script.
771 - Instance allocator support. Add and import instance accept a
772 ``--iallocator`` parameter, and call that instance allocator to decide
773 which node to use for the instance. The iallocator document describes
774 what's expected from an allocator script.
775 - ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
776 ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
777 node is lost there is still enough memory to fail over the instances
779 - ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
780 ``gnt-cluster verify``, to check for site-specific compliance. All the
781 hooks will run, and their output, if any, will be displayed. Any
782 failing hook will make the verification return an error value.
783 - ``gnt-cluster verify`` now checks that its peers are reachable on the
784 primary and secondary interfaces
785 - ``gnt-node add`` now supports the ``--readd`` option, to readd a node
786 that is still declared as part of the cluster and has failed.
787 - ``gnt-* list`` commands now accept a new ``-o +field`` way of
788 specifying output fields, that just adds the chosen fields to the
790 - ``gnt-backup`` now has a new ``remove`` command to delete an existing
791 export from the filesystem.
792 - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
793 have been added. Using them you can enable/disable acpi and pae
794 support, and specify a path for a cd image to be exported to the
795 instance. These parameters as the name suggest only work on HVM
797 - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
798 PAE support will be set to the previously hardcoded values, but the
799 (previously hardcoded) path to the CDROM ISO image will be unset and
800 if required, needs to be set manually with ``gnt-instance modify``
802 - The address to which an instance's VNC console is bound is now
803 selectable per-instance, rather than being cluster wide. Of course
804 this only applies to instances controlled via VNC, so currently just
805 applies to HVM clusters.
811 *(Released Mon, 18 Feb 2008)*
813 - more tweaks to the disk activation code (especially helpful for DRBD)
814 - change the default ``gnt-instance list`` output format, now there is
815 one combined status field (see the manpage for the exact values this
817 - some more fixes for the mac export to hooks change
818 - make Ganeti not break with DRBD 8.2.x (which changed the version
819 format in ``/proc/drbd``) (issue 24)
820 - add an upgrade tool from "remote_raid1" disk template to "drbd" disk
821 template, allowing migration from DRBD0.7+MD to DRBD8
827 *(Released Wed, 30 Jan 2008)*
829 - fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
831 - add command aliases infrastructure and a few aliases
832 - allow listing of VCPUs in the ``gnt-instance list`` and improve the
833 man pages and the ``--help`` option of ``gnt-node
834 list``/``gnt-instance list``
835 - fix ``gnt-backup list`` with down nodes (issue 21)
836 - change the tools location (move from $pkgdatadir to $pkglibdir/tools)
837 - fix the dist archive and add a check for including svn/git files in
839 - some developer-related changes: improve the burnin and the QA suite,
840 add an upload script for testing during development
846 *(Released Wed, 16 Jan 2008)*
848 - experimental HVM support, read the install document, section
849 "Initializing the cluster"
850 - allow for the PVM hypervisor per-instance kernel and initrd paths
851 - add a new command ``gnt-cluster verify-disks`` which uses a new
852 algorithm to improve the reconnection of the DRBD pairs if the device
853 on the secondary node has gone away
854 - make logical volume code auto-activate LVs at disk activation time
855 - slightly improve the speed of activating disks
856 - allow specification of the MAC address at instance creation time, and
857 changing it later via ``gnt-instance modify``
858 - fix handling of external commands that generate lots of output on
860 - update documentation with regard to minimum version of DRBD8 supported
866 *(Released Tue, 4 Dec 2007)*
868 - Log the ``xm create`` output to the node daemon log on failure (to
869 help diagnosing the error)
870 - In debug mode, log all external commands output if failed to the logs
871 - Change parsing of lvm commands to ignore stderr
877 *(Released Wed, 28 Nov 2007)*
879 - Another round of updates to the DRBD 8 code to deal with more failures
880 in the replace secondary node operation
881 - Some more logging of failures in disk operations (lvm, drbd)
882 - A few documentation updates
889 *(Released Tue, 13 Nov 2007)*
891 - Change configuration file format from Python's Pickle to JSON.
892 Upgrading is possible using the cfgupgrade utility.
893 - Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
894 faster replace disks and is more stable (DRBD 8 has many improvements
895 compared to DRBD 0.7)
896 - Added command line tags support (see man pages for ``gnt-instance``,
897 ``gnt-node``, ``gnt-cluster``)
898 - Added instance rename support
899 - Added multi-instance startup/shutdown
900 - Added cluster rename support
901 - Added ``gnt-node evacuate`` to simplify some node operations
902 - Added instance reboot operation that can speedup reboot as compared to
904 - Soften the requirement that hostnames are in FQDN format
905 - The ``ganeti-watcher`` now activates drbd pairs after secondary node
907 - Removed dependency on debian's patched fping that uses the
908 non-standard ``-S`` option
909 - Now the OS definitions are searched for in multiple, configurable
910 paths (easier for distros to package)
911 - Some changes to the hooks infrastructure (especially the new
912 post-configuration update hook)
913 - Other small bugfixes
915 .. vim: set textwidth=72 :
projects / ganeti-local / blob