7 *(Released Mon, 4 Oct 2010)*
9 - Fixed regression in ``gnt-instance rename``
15 *(Released Wed, 22 Sep 2010)*
17 - Fixed OS_VARIANT variable for OS scripts
18 - Fixed cluster tag operations via RAPI
19 - Made ``setup-ssh`` exit with non-zero code if an error occurred
20 - Disabled RAPI CA checks in watcher
26 *(Released Mon, 23 Aug 2010)*
28 - Support DRBD versions of the format "a.b.c.d"
30 - Re-introduce support for usage from multiple threads in RAPI client
31 - Instance renames and modify via RAPI
32 - Work around race condition between processing and archival in job
34 - Mark opcodes following failed one as failed, too
35 - Job field ``lock_status`` was removed due to difficulties making it
36 work with the changed job queue in Ganeti 2.2; a better way to monitor
37 locks is expected for a later 2.2.x release
38 - Fixed dry-run behaviour with many commands
39 - Support ``ssh-agent`` again when adding nodes
40 - Many additional bugfixes
46 *(Released Fri, 30 Jul 2010)*
48 Important change: the internal RPC mechanism between Ganeti nodes has
49 changed from using a home-grown http library (based on the Python base
50 libraries) to use the PycURL library. This requires that PycURL is
51 installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
52 against GnuTLS by default. cURL's support for GnuTLS had known issues
53 before cURL 7.21.0 and we recommend using the latest cURL release or
54 linking against OpenSSL. Most other distributions already link PycURL
55 and cURL against OpenSSL. The command::
57 python -c 'import pycurl; print pycurl.version'
59 can be used to determine the libraries PycURL and cURL are linked
62 Other significant changes:
64 - Rewrote much of the internals of the job queue, in order to achieve
65 better parallelism; this decouples job query operations from the job
66 processing, and it should allow much nicer behaviour of the master
67 daemon under load, and it also has uncovered some long-standing bugs
68 related to the job serialisation (now fixed)
69 - Added a default iallocator setting to the cluster parameters,
70 eliminating the need to always pass nodes or an iallocator for
71 operations that require selection of new node(s)
72 - Added experimental support for the LXC virtualization method
73 - Added support for OS parameters, which allows the installation of
74 instances to pass parameter to OS scripts in order to customise the
76 - Added a hypervisor parameter controlling the migration type (live or
77 non-live), since hypervisors have various levels of reliability; this
78 has renamed the 'live' parameter to 'mode'
79 - Added a cluster parameter ``reserved_lvs`` that denotes reserved
80 logical volumes, meaning that cluster verify will ignore them and not
81 flag their presence as errors
82 - The watcher will now reset the error count for failed instances after
83 8 hours, thus allowing self-healing if the problem that caused the
84 instances to be down/fail to start has cleared in the meantime
85 - Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
86 check for, and warn, if the drbd module parameter ``usermode_helper``
87 is not consistent with the cluster-wide setting; this is needed to
88 make diagnose easier of failed drbd creations
89 - Started adding base IPv6 support, but this is not yet
90 enabled/available for use
91 - Rename operations (cluster, instance) will now return the new name,
92 which is especially useful if a short name was passed in
93 - Added support for instance migration in RAPI
94 - Added a tool to pre-configure nodes for the SSH setup, before joining
95 them to the cluster; this will allow in the future a simplified model
96 for node joining (but not yet fully enabled in 2.2); this needs the
97 paramiko python library
98 - Fixed handling of name-resolving errors
99 - Fixed consistency of job results on the error path
100 - Fixed master-failover race condition when executed multiple times in
102 - Fixed many bugs related to the job queue (mostly introduced during the
103 2.2 development cycle, so not all are impacting 2.1)
104 - Fixed instance migration with missing disk symlinks
105 - Fixed handling of unknown jobs in ``gnt-job archive``
106 - And many other small fixes/improvements
110 - Enhanced both the unittest and the QA coverage
111 - Switched the opcode validation to a generic model, and extended the
112 validation to all opcode parameters
113 - Changed more parts of the code that write shell scripts to use the
115 - Switched the master daemon to use the asyncore library for the Luxi
122 *(Released Thu, 17 Jun 2010)*
124 - Added tool (``move-instance``) and infrastructure to move instances
125 between separate clusters (see :doc:`separate documentation
126 <move-instance>` and :doc:`design document <design-2.2>`)
127 - Added per-request RPC timeout
128 - RAPI now requires a Content-Type header for requests with a body (e.g.
129 ``PUT`` or ``POST``) which must be set to ``application/json`` (see
130 :rfc:`2616` (HTTP/1.1), section 7.2.1)
131 - ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
133 - Implemented initial support for running Ganeti daemons as separate
134 users, see configure-time flags ``--with-user-prefix`` and
135 ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
137 - Instances can be removed after export (``gnt-backup export
139 - Self-signed certificates generated by Ganeti now use a 2048 bit RSA
140 key (instead of 1024 bit)
141 - Added new cluster configuration file for cluster domain secret
142 - Import/export now use SSL instead of SSH
143 - Added support for showing estimated time when exporting an instance,
144 see the ``ganeti-os-interface(7)`` manpage and look for
150 *(Released Tue, 24 Aug 2010)*
153 - Don't ignore secondary node silently on non-mirrored disk templates
155 - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
156 - Fix usb_mouse parameter breaking with vnc_console (issue 109)
157 - Properly document the usb_mouse parameter
158 - Fix path in ganeti-rapi(8) (issue 116)
159 - Adjust error message when the ganeti user's .ssh directory is
161 - Add same-node-check when changing the disk template to drbd
167 *(Released Fri, 16 Jul 2010)*
170 - Add an option to only select some reboot types during qa/burnin.
171 (on some hypervisors consequent reboots are not supported)
172 - Fix infrequent race condition in master failover. Sometimes the old
173 master ip address would be still detected as up for a short time
174 after it was removed, causing failover to fail.
175 - Decrease mlockall warnings when the ctypes module is missing. On
176 Python 2.4 we support running even if no ctypes module is installed,
177 but we were too verbose about this issue.
178 - Fix building on old distributions, on which man doesn't have a
180 - Fix RAPI not to ignore the MAC address on instance creation
181 - Implement the old instance creation format in the RAPI client.
187 *(Released Thu, 01 Jul 2010)*
189 A small bugfix release:
190 - Fix disk adoption: broken by strict --disk option checking in 2.1.4
191 - Fix batch-create: broken in the whole 2.1 series due to a lookup on
192 a non-existing option
193 - Fix instance create: the --force-variant option was ignored
194 - Improve pylint 0.21 compatibility and warnings with Python 2.6
195 - Fix modify node storage with non-FQDN arguments
196 - Fix RAPI client to authenticate under Python 2.6 when used
197 for more than 5 requests needing authentication
198 - Fix gnt-instance modify -t (storage) giving a wrong error message
199 when converting a non-shutdown drbd instance to plain
205 *(Released Fri, 18 Jun 2010)*
207 A small bugfix release:
209 - Fix live migration of KVM instances started with older Ganeti
210 versions which had fewer hypervisor parameters
211 - Fix gnt-instance grow-disk on down instances
212 - Fix an error-reporting bug during instance migration
213 - Better checking of the ``--net`` and ``--disk`` values, to avoid
214 silently ignoring broken ones
215 - Fix an RPC error reporting bug affecting, for example, RAPI client
217 - Fix bug triggered by different API version os-es on different nodes
218 - Fix a bug in instance startup with custom hvparams: OS level
219 parameters would fail to be applied.
220 - Fix the RAPI client under Python 2.6 (but more work is needed to
221 make it work completely well with OpenSSL)
222 - Fix handling of errors when resolving names from DNS
228 *(Released Thu, 3 Jun 2010)*
230 A medium sized development cycle. Some new features, and some
231 fixes/small improvements/cleanups.
236 The node deamon now tries to mlock itself into memory, unless the
237 ``--no-mlock`` flag is passed. It also doesn't fail if it can't write
238 its logs, and falls back to console logging. This allows emergency
239 features such as ``gnt-node powercycle`` to work even in the event of a
240 broken node disk (tested offlining the disk hosting the node's
241 filesystem and dropping its memory caches; don't try this at home)
243 KVM: add vhost-net acceleration support. It can be tested with a new
244 enough version of the kernel and of qemu-kvm.
246 KVM: Add instance chrooting feature. If you use privilege dropping for
247 your VMs you can also now force them to chroot to an empty directory,
248 before starting the emulated guest.
250 KVM: Add maximum migration bandwith and maximum downtime tweaking
251 support (requires a new-enough version of qemu-kvm).
253 Cluster verify will now warn if the master node doesn't have the master
256 Add a new (incompatible) instance creation request format to RAPI which
257 supports all parameters (previously only a subset was supported, and it
258 wasn't possible to extend the old format to accomodate all the new
259 features. The old format is still supported, and a client can check for
260 this feature, before using it, by checking for its presence in the
261 ``features`` RAPI resource.
263 Now with ancient latin support. Try it passing the ``--roman`` option to
264 ``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
265 (requires the python-roman module to be installed, in order to work).
270 As usual many internal code refactorings, documentation updates, and
273 - Lots of improvements and cleanups to the experimental Remote API
274 (RAPI) client library.
275 - A new unit test suite for the core daemon libraries.
276 - A fix to creating missing directories makes sure the umask is not
277 applied anymore. This enforces the same directory permissions
279 - Better handling terminating daemons with ctrl+c (used when running
280 them in debugging mode).
281 - Fix a race condition in live migrating a KVM instance, when stat()
282 on the old proc status file returned EINVAL, which is an unexpected
284 - Fixed manpage checking with newer man and utf-8 charachters. But now
285 you need the en_US.UTF-8 locale enabled to build Ganeti from git.
291 *(Released Fri, 7 May 2010)*
293 Fix a bug which prevented untagged KVM instances from starting.
299 *(Released Fri, 7 May 2010)*
301 Another release with a long development cycle, during which many
302 different features were added.
307 The KVM hypervisor now can run the individual instances as non-root, to
308 reduce the impact of a VM being hijacked due to bugs in the
309 hypervisor. It is possible to run all instances as a single (non-root)
310 user, to manually specify a user for each instance, or to dynamically
311 allocate a user out of a cluster-wide pool to each instance, with the
312 guarantee that no two instances will run under the same user ID on any
315 An experimental RAPI client library, that can be used standalone
316 (without the other Ganeti libraries), is provided in the source tree as
317 ``lib/rapi/client.py``. Note this client might change its interface in
318 the future, as we iterate on its capabilities.
320 A new command, ``gnt-cluster renew-crypto`` has been added to easily
321 replace the cluster's certificates and crypto keys. This might help in
322 case they have been compromised, or have simply expired.
324 A new disk option for instance creation has been added that allows one
325 to "adopt" currently existing logical volumes, with data
326 preservation. This should allow easier migration to Ganeti from
327 unmanaged (or managed via other software) instances.
329 Another disk improvement is the possibility to convert between redundant
330 (DRBD) and plain (LVM) disk configuration for an instance. This should
331 allow better scalability (starting with one node and growing the
332 cluster, or shrinking a two-node cluster to one node).
334 A new feature that could help with automated node failovers has been
335 implemented: if a node sees itself as offline (by querying the master
336 candidates), it will try to shutdown (hard) all instances and any active
337 DRBD devices. This reduces the risk of duplicate instances if an
338 external script automatically failovers the instances on such nodes. To
339 enable this, the cluster parameter ``maintain_node_health`` should be
340 enabled; in the future this option (per the name) will enable other
341 automatic maintenance features.
343 Instance export/import now will reuse the original instance
344 specifications for all parameters; that means exporting an instance,
345 deleting it and the importing it back should give an almost identical
346 instance. Note that the default import behaviour has changed from
347 before, where it created only one NIC; now it recreates the original
350 Cluster verify has added a few new checks: SSL certificates validity,
351 /etc/hosts consistency across the cluster, etc.
356 As usual, many internal changes were done, documentation fixes,
359 - Fixed cluster initialization with disabled cluster storage (regression
361 - File-based storage supports growing the disks
362 - Fixed behaviour of node role changes
363 - Fixed cluster verify for some corner cases, plus a general rewrite of
364 cluster verify to allow future extension with more checks
365 - Fixed log spamming by watcher and node daemon (regression introduced
367 - Fixed possible validation issues when changing the list of enabled
369 - Fixed cleanup of /etc/hosts during node removal
370 - Fixed RAPI response for invalid methods
371 - Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
372 - Multiple small improvements to the KVM hypervisor (VNC usage, booting
373 from ide disks, etc.)
374 - Allow OS changes without re-installation (to record a changed OS
375 outside of Ganeti, or to allow OS renames)
376 - Allow instance creation without OS installation (useful for example if
377 the OS will be installed manually, or restored from a backup not in
379 - Implemented option to make cluster ``copyfile`` use the replication
381 - Added list of enabled hypervisors to ssconf (possibly useful for
383 - Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
385 - A partial form of node re-IP is possible via node readd, which now
386 allows changed node primary IP
387 - Command line utilities now show an informational message if the job is
389 - The logs of the master daemon now show the PID/UID/GID of the
396 *(Released Fri, 12 Mar 2010)*
398 During the 2.1.0 long release candidate cycle, a lot of improvements and
399 changes have accumulated with were released later as 2.1.1.
404 The node evacuate command (``gnt-node evacuate``) was significantly
405 rewritten, and as such the IAllocator protocol was changed - a new
406 request type has been added. This unfortunate change during a stable
407 series is designed to improve performance of node evacuations; on
408 clusters with more than about five nodes and which are well-balanced,
409 evacuation should proceed in parallel for all instances of the node
410 being evacuated. As such, any existing IAllocator scripts need to be
411 updated, otherwise the above command will fail due to the unknown
412 request. The provided "dumb" allocator has not been updated; but the
413 ganeti-htools package supports the new protocol since version 0.2.4.
415 Another important change is increased validation of node and instance
416 names. This might create problems in special cases, if invalid host
417 names are being used.
419 Also, a new layer of hypervisor parameters has been added, that sits at
420 OS level between the cluster defaults and the instance ones. This allows
421 customisation of virtualization parameters depending on the installed
422 OS. For example instances with OS 'X' may have a different KVM kernel
423 (or any other parameter) than the cluster defaults. This is intended to
424 help managing a multiple OSes on the same cluster, without manual
425 modification of each instance's parameters.
427 A tool for merging clusters, ``cluster-merge``, has been added in the
433 - Improved the int/float conversions that should make the code more
434 robust in face of errors from the node daemons
435 - Fixed the remove node code in case of internal configuration errors
436 - Fixed the node daemon behaviour in face of inconsistent queue
437 directory (e.g. read-only file-system where we can't open the files
439 - Fixed the behaviour of gnt-node modify for master candidate demotion;
440 now it either aborts cleanly or, if given the new “auto_promote”
441 parameter, will automatically promote other nodes as needed
442 - Fixed compatibility with (unreleased yet) Python 2.6.5 that would
443 completely prevent Ganeti from working
444 - Fixed bug for instance export when not all disks were successfully
446 - Fixed behaviour of node add when the new node is slow in starting up
448 - Fixed handling of signals in the LUXI client, which should improve
449 behaviour of command-line scripts
450 - Added checks for invalid node/instance names in the configuration (now
451 flagged during cluster verify)
452 - Fixed watcher behaviour for disk activation errors
453 - Fixed two potentially endless loops in http library, which led to the
454 RAPI daemon hanging and consuming 100% CPU in some cases
455 - Fixed bug in RAPI daemon related to hashed passwords
456 - Fixed bug for unintended qemu-level bridging of multi-NIC KVM
458 - Enhanced compatibility with non-Debian OSes, but not using absolute
459 path in some commands and allowing customisation of the ssh
460 configuration directory
461 - Fixed possible future issue with new Python versions by abiding to the
462 proper use of ``__slots__`` attribute on classes
463 - Added checks that should prevent directory traversal attacks
464 - Many documentation fixes based on feedback from users
469 - Added an “early_release” more for instance replace disks and node
470 evacuate, where we release locks earlier and thus allow higher
471 parallelism within the cluster
472 - Added watcher hooks, intended to allow the watcher to restart other
473 daemons (e.g. from the ganeti-nbma project), but they can be used of
474 course for any other purpose
475 - Added a compile-time disable for DRBD barriers, to increase
476 performance if the administrator trusts the power supply or the
477 storage system to not lose writes
478 - Added the option of using syslog for logging instead of, or in
479 addition to, Ganeti's own log files
480 - Removed boot restriction for paravirtual NICs for KVM, recent versions
481 can indeed boot from a paravirtual NIC
482 - Added a generic debug level for many operations; while this is not
483 used widely yet, it allows one to pass the debug value all the way to
485 - Enhanced the hooks environment for instance moves (failovers,
486 migrations) where the primary/secondary nodes changed during the
487 operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
488 - Enhanced data validations for many user-supplied values; one important
489 item is the restrictions imposed on instance and node names, which
490 might reject some (invalid) host names
491 - Add a configure-time option to disable file-based storage, if it's not
492 needed; this allows greater security separation between the master
493 node and the other nodes from the point of view of the inter-node RPC
495 - Added user notification in interactive tools if job is waiting in the
496 job queue or trying to acquire locks
497 - Added log messages when a job is waiting for locks
498 - Added filtering by node tags in instance operations which admit
499 multiple instances (start, stop, reboot, reinstall)
500 - Added a new tool for cluster mergers, ``cluster-merge``
501 - Parameters from command line which are of the form ``a=b,c=d`` can now
502 use backslash escapes to pass in values which contain commas,
503 e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
505 - For KVM, the instance name is the first parameter passed to KVM, so
506 that it's more visible in the process list
512 *(Released Tue, 2 Mar 2010)*
514 Ganeti 2.1 brings many improvements with it. Major changes:
516 - Added infrastructure to ease automated disk repairs
517 - Added new daemon to export configuration data in a cheaper way than
519 - Instance NICs can now be routed instead of being associated with a
521 - Improved job locking logic to reduce impact of jobs acquiring multiple
522 locks waiting for other long-running jobs
524 In-depth implementation details can be found in the Ganeti 2.1 design
530 - Added chroot hypervisor
531 - Added more options to xen-hvm hypervisor (``kernel_path`` and
533 - Added more options to xen-pvm hypervisor (``use_bootloader``,
534 ``bootloader_path`` and ``bootloader_args``)
535 - Added the ``use_localtime`` option for the xen-hvm and kvm
536 hypervisors, and the default value for this has changed to false (in
537 2.0 xen-hvm always enabled it)
538 - Added luxi call to submit multiple jobs in one go
539 - Added cluster initialization option to not modify ``/etc/hosts``
541 - Added network interface parameters
542 - Added dry run mode to some LUs
543 - Added RAPI resources:
545 - ``/2/instances/[instance_name]/info``
546 - ``/2/instances/[instance_name]/replace-disks``
547 - ``/2/nodes/[node_name]/evacuate``
548 - ``/2/nodes/[node_name]/migrate``
549 - ``/2/nodes/[node_name]/role``
550 - ``/2/nodes/[node_name]/storage``
551 - ``/2/nodes/[node_name]/storage/modify``
552 - ``/2/nodes/[node_name]/storage/repair``
554 - Added OpCodes to evacuate or migrate all instances on a node
555 - Added new command to list storage elements on nodes (``gnt-node
556 list-storage``) and modify them (``gnt-node modify-storage``)
557 - Added new ssconf files with master candidate IP address
558 (``ssconf_master_candidates_ips``), node primary IP address
559 (``ssconf_node_primary_ips``) and node secondary IP address
560 (``ssconf_node_secondary_ips``)
561 - Added ``ganeti-confd`` and a client library to query the Ganeti
562 configuration via UDP
563 - Added ability to run hooks after cluster initialization and before
565 - Added automatic mode for disk replace (``gnt-instance replace-disks
567 - Added ``gnt-instance recreate-disks`` to re-create (empty) disks
568 after catastrophic data-loss
569 - Added ``gnt-node repair-storage`` command to repair damaged LVM volume
571 - Added ``gnt-instance move`` command to move instances
572 - Added ``gnt-cluster watcher`` command to control watcher
573 - Added ``gnt-node powercycle`` command to powercycle nodes
574 - Added new job status field ``lock_status``
575 - Added parseable error codes to cluster verification (``gnt-cluster
576 verify --error-codes``) and made output less verbose (use
577 ``--verbose`` to restore previous behaviour)
578 - Added UUIDs to the main config entities (cluster, nodes, instances)
579 - Added support for OS variants
580 - Added support for hashed passwords in the Ganeti remote API users file
582 - Added option to specify maximum timeout on instance shutdown
583 - Added ``--no-ssh-init`` option to ``gnt-cluster init``
584 - Added new helper script to start and stop Ganeti daemons
585 (``daemon-util``), with the intent to reduce the work necessary to
586 adjust Ganeti for non-Debian distributions and to start/stop daemons
588 - Added more unittests
589 - Fixed critical bug in ganeti-masterd startup
590 - Removed the configure-time ``kvm-migration-port`` parameter, this is
591 now customisable at the cluster level for both the KVM and Xen
592 hypervisors using the new ``migration_port`` parameter
593 - Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
594 reinstalling an instance
595 - Allowed ``@`` in tag names
596 - Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
597 - Many documentation updates
598 - Distribute hypervisor files on ``gnt-cluster redist-conf``
599 - ``gnt-instance reinstall`` can now reinstall multiple instances
600 - Updated many command line parameters
601 - Introduced new OS API version 15
602 - No longer support a default hypervisor
603 - Treat virtual LVs as inexistent
604 - Improved job locking logic to reduce lock contention
605 - Match instance and node names case insensitively
606 - Reimplemented bash completion script to be more complete
613 *(Released Thu, 4 Feb 2010)*
615 - Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
616 - Fix a string formatting bug
617 - Improve safety of the code in some error paths
618 - Improve data validation in the master of values returned from nodes
624 *(Released Thu, 17 Dec 2009)*
626 - Fix security issue due to missing validation of iallocator names; this
627 allows local and remote execution of arbitrary executables
628 - Fix failure of gnt-node list during instance removal
629 - Ship the RAPI documentation in the archive
635 *(Released Wed, 30 Sep 2009)*
637 - Fixed many wrong messages
638 - Fixed a few bugs related to the locking library
639 - Fixed MAC checking at instance creation time
640 - Fixed a DRBD parsing bug related to gaps in /proc/drbd
641 - Fixed a few issues related to signal handling in both daemons and
643 - Fixed the example startup script provided
644 - Fixed insserv dependencies in the example startup script (patch from
646 - Fixed handling of drained nodes in the iallocator framework
647 - Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
649 - Fixed error related to invalid job IDs in job polling
650 - Fixed job/opcode persistence on unclean master shutdown
651 - Fixed handling of partial job processing after unclean master
653 - Fixed error reporting from LUs, previously all errors were converted
654 into execution errors
655 - Fixed error reporting from burnin
656 - Decreased significantly the memory usage of the job queue
657 - Optimised slightly multi-job submission
658 - Optimised slightly opcode loading
659 - Backported the multi-job submit framework from the development
660 branch; multi-instance start and stop should be faster
661 - Added script to clean archived jobs after 21 days; this will reduce
662 the size of the queue directory
663 - Added some extra checks in disk size tracking
664 - Added an example ethers hook script
665 - Added a cluster parameter that prevents Ganeti from modifying of
667 - Added more node information to RAPI responses
668 - Added a ``gnt-job watch`` command that allows following the ouput of a
670 - Added a bind-address option to ganeti-rapi
671 - Added more checks to the configuration verify
672 - Enhanced the burnin script such that some operations can be retried
674 - Converted instance reinstall to multi-instance model
680 *(Released Fri, 7 Aug 2009)*
682 - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
683 to allow using the pre-2.0.2 behaviour in activation, if any existing
684 instances have mismatched disk sizes in the configuration
685 - Added ``gnt-cluster repair-disk-sizes`` command to check and update
686 any configuration mismatches for disk sizes
687 - Added ``gnt-master cluste-failover --no-voting`` to allow master
688 failover to work on two-node clusters
689 - Fixed the ``--net`` option of ``gnt-backup import``, which was
691 - Fixed detection of OS script errors in ``gnt-backup export``
692 - Fixed exit code of ``gnt-backup export``
698 *(Released Fri, 17 Jul 2009)*
700 - Added experimental support for stripped logical volumes; this should
701 enhance performance but comes with a higher complexity in the block
702 device handling; stripping is only enabled when passing
703 ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
704 affected even in the non-stripped mode
705 - Improved resiliency against transient failures at the end of DRBD
706 resyncs, and in general of DRBD resync checks
707 - Fixed a couple of issues with exports and snapshot errors
708 - Fixed a couple of issues in instance listing
709 - Added display of the disk size in ``gnt-instance info``
710 - Fixed checking for valid OSes in instance creation
711 - Fixed handling of the "vcpus" parameter in instance listing and in
712 general of invalid parameters
713 - Fixed http server library, and thus RAPI, to handle invalid
714 username/password combinations correctly; this means that now they
715 report unauthorized for queries too, not only for modifications,
716 allowing earlier detect of configuration problems
717 - Added a new "role" node list field, equivalent to the master/master
718 candidate/drained/offline flags combinations
719 - Fixed cluster modify and changes of candidate pool size
720 - Fixed cluster verify error messages for wrong files on regular nodes
721 - Fixed a couple of issues with node demotion from master candidate role
722 - Fixed node readd issues
723 - Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
724 - Added a new ``--no-voting`` option for masterfailover to fix failover
725 on two-nodes clusters when the former master node is unreachable
726 - Added instance reinstall over RAPI
732 *(Released Tue, 16 Jun 2009)*
734 - added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
735 allow re-adding the start in single-user option (regression from 1.2)
736 - the watcher writes the instance status to a file, to allow monitoring
737 to report the instance status (from the master) based on cached
738 results of the watcher's queries; while this can get stale if the
739 watcher is being locked due to other work on the cluster, this is
741 - the watcher now also restarts the node daemon and the rapi daemon if
743 - fixed the watcher to handle full and drained queue cases
744 - hooks export more instance data in the environment, which helps if
745 hook scripts need to take action based on the instance's properties
746 (no longer need to query back into ganeti)
747 - instance failovers when the instance is stopped do not check for free
748 RAM, so that failing over a stopped instance is possible in low memory
750 - rapi uses queries for tags instead of jobs (for less job traffic), and
751 for cluster tags it won't talk to masterd at all but read them from
753 - a couple of error handling fixes in RAPI
754 - drbd handling: improved the error handling of inconsistent disks after
755 resync to reduce the frequency of "there are some degraded disks for
756 this instance" messages
757 - fixed a bug in live migration when DRBD doesn't want to reconnect (the
758 error handling path called a wrong function name)
764 *(Released Wed, 27 May 2009)*
766 - no changes from rc5
769 Version 2.0 release candidate 5
770 -------------------------------
772 *(Released Wed, 20 May 2009)*
774 - fix a couple of bugs (validation, argument checks)
775 - fix ``gnt-cluster getmaster`` on non-master nodes (regression)
776 - some small improvements to RAPI and IAllocator
777 - make watcher automatically start the master daemon if down
780 Version 2.0 release candidate 4
781 -------------------------------
783 *(Released Mon, 27 Apr 2009)*
785 - change the OS list to not require locks; this helps with big clusters
786 - fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
787 volume group is broken
788 - ``gnt-instance info``, without any arguments, doesn't run for all
789 instances anymore; either pass ``--all`` or pass the desired
790 instances; this helps against mistakes on big clusters where listing
791 the information for all instances takes a long time
792 - miscellaneous doc and man pages fixes
795 Version 2.0 release candidate 3
796 -------------------------------
798 *(Released Wed, 8 Apr 2009)*
800 - Change the internal locking model of some ``gnt-node`` commands, in
801 order to reduce contention (and blocking of master daemon) when
802 batching many creation/reinstall jobs
803 - Fixes to Xen soft reboot
804 - No longer build documentation at build time, instead distribute it in
805 the archive, in order to reduce the need for the whole docbook/rst
809 Version 2.0 release candidate 2
810 -------------------------------
812 *(Released Fri, 27 Mar 2009)*
814 - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
815 - Fix watcher startup sequence, improves the behaviour of busy clusters
816 - Some other fixes in ``gnt-cluster verify``, ``gnt-instance
817 replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
818 bind address and other places
819 - Some documentation fixes and updates
822 Version 2.0 release candidate 1
823 -------------------------------
825 *(Released Mon, 2 Mar 2009)*
827 - More documentation updates, now all docs should be more-or-less
829 - A couple of small fixes (mixed hypervisor clusters, offline nodes,
831 - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
833 - Fix an issue related to $libdir/run/ganeti and cluster creation
839 *(Released Thu, 19 Feb 2009)*
841 - Xen PVM and KVM have switched the default value for the instance root
842 disk to the first partition on the first drive, instead of the whole
843 drive; this means that the OS installation scripts must be changed
845 - Man pages have been updated
846 - RAPI has been switched by default to HTTPS, and the exported functions
847 should all work correctly
848 - RAPI v1 has been removed
849 - Many improvements to the KVM hypervisor
850 - Block device errors are now better reported
851 - Many other bugfixes and small improvements
857 *(Released Mon, 26 Jan 2009)*
859 - Version 2 is a general rewrite of the code and therefore the
860 differences are too many to list, see the design document for 2.0 in
861 the ``doc/`` subdirectory for more details
862 - In this beta version there is not yet a migration path from 1.2 (there
863 will be one in the final 2.0 release)
864 - A few significant changes are:
866 - all commands are executed by a daemon (``ganeti-masterd``) and the
867 various ``gnt-*`` commands are just front-ends to it
868 - all the commands are entered into, and executed from a job queue,
869 see the ``gnt-job(8)`` manpage
870 - the RAPI daemon supports read-write operations, secured by basic
871 HTTP authentication on top of HTTPS
872 - DRBD version 0.7 support has been removed, DRBD 8 is the only
873 supported version (when migrating from Ganeti 1.2 to 2.0, you need
874 to migrate to DRBD 8 first while still running Ganeti 1.2)
875 - DRBD devices are using statically allocated minor numbers, which
876 will be assigned to existing instances during the migration process
877 - there is support for both Xen PVM and Xen HVM instances running on
879 - KVM virtualization is supported too
880 - file-based storage has been implemented, which means that it is
881 possible to run the cluster without LVM and DRBD storage, for
882 example using a shared filesystem exported from shared storage (and
883 still have live migration)
889 *(Released Tue, 13 Jan 2009)*
891 - Change the default reboot type in ``gnt-instance reboot`` to "hard"
892 - Reuse the old instance mac address by default on instance import, if
893 the instance name is the same.
894 - Handle situations in which the node info rpc returns incomplete
896 - Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
897 - Improved version of batcher:
900 - instance mac address support
901 - support for HVM clusters/instances
903 - Add an option to show the number of cpu sockets and nodes in
905 - Support OSes that handle more than one version of the OS api (but do
906 not change the current API in any other way)
907 - Fix ``gnt-node migrate``
908 - ``gnt-debug`` man page
909 - Fixes various more typos and small issues
910 - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
916 *(Released Wed, 24 Sep 2008)*
918 - new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
919 type of disk exported to fully virtualized instances.
920 - provide access to the serial console of HVM instances
921 - instance auto_balance flag, set by default. If turned off it will
922 avoid warnings on cluster verify if there is not enough memory to fail
923 over an instance. in the future it will prevent automatically failing
924 it over when we will support that.
925 - batcher tool for instance creation, see ``tools/README.batcher``
926 - ``gnt-instance reinstall --select-os`` to interactively select a new
927 operating system when reinstalling an instance.
928 - when changing the memory amount on instance modify a check has been
929 added that the instance will be able to start. also warnings are
930 emitted if the instance will not be able to fail over, if auto_balance
932 - documentation fixes
933 - sync fields between ``gnt-instance list/modify/add/import``
934 - fix a race condition in drbd when the sync speed was set after giving
935 the device a remote peer.
941 *(Released Tue, 22 Jul 2008)*
943 - note: the allowed size and number of tags per object were reduced
944 - fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
945 - fixed twisted 8.x compatibility
946 - fixed ``gnt-instance replace-disks`` with iallocator
947 - add TCP keepalives on twisted connections to detect restarted nodes
948 - disk increase support, see ``gnt-instance grow-disk``
949 - implement bulk node/instance query for RAPI
950 - add tags in node/instance listing (optional)
951 - experimental migration (and live migration) support, read the man page
952 for ``gnt-instance migrate``
953 - the ``ganeti-watcher`` logs are now timestamped, and the watcher also
954 has some small improvements in handling its state file
960 *(Released Fri, 13 Jun 2008)*
962 - Experimental readonly, REST-based remote API implementation;
963 automatically started on master node, TCP port 5080, if enabled by
964 ``--enable-rapi`` parameter to configure script.
965 - Instance allocator support. Add and import instance accept a
966 ``--iallocator`` parameter, and call that instance allocator to decide
967 which node to use for the instance. The iallocator document describes
968 what's expected from an allocator script.
969 - ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
970 ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
971 node is lost there is still enough memory to fail over the instances
973 - ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
974 ``gnt-cluster verify``, to check for site-specific compliance. All the
975 hooks will run, and their output, if any, will be displayed. Any
976 failing hook will make the verification return an error value.
977 - ``gnt-cluster verify`` now checks that its peers are reachable on the
978 primary and secondary interfaces
979 - ``gnt-node add`` now supports the ``--readd`` option, to readd a node
980 that is still declared as part of the cluster and has failed.
981 - ``gnt-* list`` commands now accept a new ``-o +field`` way of
982 specifying output fields, that just adds the chosen fields to the
984 - ``gnt-backup`` now has a new ``remove`` command to delete an existing
985 export from the filesystem.
986 - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
987 have been added. Using them you can enable/disable acpi and pae
988 support, and specify a path for a cd image to be exported to the
989 instance. These parameters as the name suggest only work on HVM
991 - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
992 PAE support will be set to the previously hardcoded values, but the
993 (previously hardcoded) path to the CDROM ISO image will be unset and
994 if required, needs to be set manually with ``gnt-instance modify``
996 - The address to which an instance's VNC console is bound is now
997 selectable per-instance, rather than being cluster wide. Of course
998 this only applies to instances controlled via VNC, so currently just
999 applies to HVM clusters.
1005 *(Released Mon, 18 Feb 2008)*
1007 - more tweaks to the disk activation code (especially helpful for DRBD)
1008 - change the default ``gnt-instance list`` output format, now there is
1009 one combined status field (see the manpage for the exact values this
1011 - some more fixes for the mac export to hooks change
1012 - make Ganeti not break with DRBD 8.2.x (which changed the version
1013 format in ``/proc/drbd``) (issue 24)
1014 - add an upgrade tool from "remote_raid1" disk template to "drbd" disk
1015 template, allowing migration from DRBD0.7+MD to DRBD8
1021 *(Released Wed, 30 Jan 2008)*
1023 - fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
1025 - add command aliases infrastructure and a few aliases
1026 - allow listing of VCPUs in the ``gnt-instance list`` and improve the
1027 man pages and the ``--help`` option of ``gnt-node
1028 list``/``gnt-instance list``
1029 - fix ``gnt-backup list`` with down nodes (issue 21)
1030 - change the tools location (move from $pkgdatadir to $pkglibdir/tools)
1031 - fix the dist archive and add a check for including svn/git files in
1033 - some developer-related changes: improve the burnin and the QA suite,
1034 add an upload script for testing during development
1040 *(Released Wed, 16 Jan 2008)*
1042 - experimental HVM support, read the install document, section
1043 "Initializing the cluster"
1044 - allow for the PVM hypervisor per-instance kernel and initrd paths
1045 - add a new command ``gnt-cluster verify-disks`` which uses a new
1046 algorithm to improve the reconnection of the DRBD pairs if the device
1047 on the secondary node has gone away
1048 - make logical volume code auto-activate LVs at disk activation time
1049 - slightly improve the speed of activating disks
1050 - allow specification of the MAC address at instance creation time, and
1051 changing it later via ``gnt-instance modify``
1052 - fix handling of external commands that generate lots of output on
1054 - update documentation with regard to minimum version of DRBD8 supported
1060 *(Released Tue, 4 Dec 2007)*
1062 - Log the ``xm create`` output to the node daemon log on failure (to
1063 help diagnosing the error)
1064 - In debug mode, log all external commands output if failed to the logs
1065 - Change parsing of lvm commands to ignore stderr
1071 *(Released Wed, 28 Nov 2007)*
1073 - Another round of updates to the DRBD 8 code to deal with more failures
1074 in the replace secondary node operation
1075 - Some more logging of failures in disk operations (lvm, drbd)
1076 - A few documentation updates
1083 *(Released Tue, 13 Nov 2007)*
1085 - Change configuration file format from Python's Pickle to JSON.
1086 Upgrading is possible using the cfgupgrade utility.
1087 - Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
1088 faster replace disks and is more stable (DRBD 8 has many improvements
1089 compared to DRBD 0.7)
1090 - Added command line tags support (see man pages for ``gnt-instance``,
1091 ``gnt-node``, ``gnt-cluster``)
1092 - Added instance rename support
1093 - Added multi-instance startup/shutdown
1094 - Added cluster rename support
1095 - Added ``gnt-node evacuate`` to simplify some node operations
1096 - Added instance reboot operation that can speedup reboot as compared to
1098 - Soften the requirement that hostnames are in FQDN format
1099 - The ``ganeti-watcher`` now activates drbd pairs after secondary node
1101 - Removed dependency on debian's patched fping that uses the
1102 non-standard ``-S`` option
1103 - Now the OS definitions are searched for in multiple, configurable
1104 paths (easier for distros to package)
1105 - Some changes to the hooks infrastructure (especially the new
1106 post-configuration update hook)
1107 - Other small bugfixes
1109 .. vim: set textwidth=72 :