7 *(Released Wed, 22 Sep 2010)*
9 - Fixed OS_VARIANT variable for OS scripts
10 - Fixed cluster tag operations via RAPI
11 - Made ``setup-ssh`` exit with non-zero code if an error occurred
12 - Disabled RAPI CA checks in watcher
18 *(Released Mon, 23 Aug 2010)*
20 - Support DRBD versions of the format "a.b.c.d"
22 - Re-introduce support for usage from multiple threads in RAPI client
23 - Instance renames and modify via RAPI
24 - Work around race condition between processing and archival in job
26 - Mark opcodes following failed one as failed, too
27 - Job field ``lock_status`` was removed due to difficulties making it
28 work with the changed job queue in Ganeti 2.2; a better way to monitor
29 locks is expected for a later 2.2.x release
30 - Fixed dry-run behaviour with many commands
31 - Support ``ssh-agent`` again when adding nodes
32 - Many additional bugfixes
38 *(Released Fri, 30 Jul 2010)*
40 Important change: the internal RPC mechanism between Ganeti nodes has
41 changed from using a home-grown http library (based on the Python base
42 libraries) to use the PycURL library. This requires that PycURL is
43 installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
44 against GnuTLS by default. cURL's support for GnuTLS had known issues
45 before cURL 7.21.0 and we recommend using the latest cURL release or
46 linking against OpenSSL. Most other distributions already link PycURL
47 and cURL against OpenSSL. The command::
49 python -c 'import pycurl; print pycurl.version'
51 can be used to determine the libraries PycURL and cURL are linked
54 Other significant changes:
56 - Rewrote much of the internals of the job queue, in order to achieve
57 better parallelism; this decouples job query operations from the job
58 processing, and it should allow much nicer behaviour of the master
59 daemon under load, and it also has uncovered some long-standing bugs
60 related to the job serialisation (now fixed)
61 - Added a default iallocator setting to the cluster parameters,
62 eliminating the need to always pass nodes or an iallocator for
63 operations that require selection of new node(s)
64 - Added experimental support for the LXC virtualization method
65 - Added support for OS parameters, which allows the installation of
66 instances to pass parameter to OS scripts in order to customise the
68 - Added a hypervisor parameter controlling the migration type (live or
69 non-live), since hypervisors have various levels of reliability; this
70 has renamed the 'live' parameter to 'mode'
71 - Added a cluster parameter ``reserved_lvs`` that denotes reserved
72 logical volumes, meaning that cluster verify will ignore them and not
73 flag their presence as errors
74 - The watcher will now reset the error count for failed instances after
75 8 hours, thus allowing self-healing if the problem that caused the
76 instances to be down/fail to start has cleared in the meantime
77 - Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
78 check for, and warn, if the drbd module parameter ``usermode_helper``
79 is not consistent with the cluster-wide setting; this is needed to
80 make diagnose easier of failed drbd creations
81 - Started adding base IPv6 support, but this is not yet
82 enabled/available for use
83 - Rename operations (cluster, instance) will now return the new name,
84 which is especially useful if a short name was passed in
85 - Added support for instance migration in RAPI
86 - Added a tool to pre-configure nodes for the SSH setup, before joining
87 them to the cluster; this will allow in the future a simplified model
88 for node joining (but not yet fully enabled in 2.2); this needs the
89 paramiko python library
90 - Fixed handling of name-resolving errors
91 - Fixed consistency of job results on the error path
92 - Fixed master-failover race condition when executed multiple times in
94 - Fixed many bugs related to the job queue (mostly introduced during the
95 2.2 development cycle, so not all are impacting 2.1)
96 - Fixed instance migration with missing disk symlinks
97 - Fixed handling of unknown jobs in ``gnt-job archive``
98 - And many other small fixes/improvements
102 - Enhanced both the unittest and the QA coverage
103 - Switched the opcode validation to a generic model, and extended the
104 validation to all opcode parameters
105 - Changed more parts of the code that write shell scripts to use the
107 - Switched the master daemon to use the asyncore library for the Luxi
114 *(Released Thu, 17 Jun 2010)*
116 - Added tool (``move-instance``) and infrastructure to move instances
117 between separate clusters (see :doc:`separate documentation
118 <move-instance>` and :doc:`design document <design-2.2>`)
119 - Added per-request RPC timeout
120 - RAPI now requires a Content-Type header for requests with a body (e.g.
121 ``PUT`` or ``POST``) which must be set to ``application/json`` (see
122 :rfc:`2616` (HTTP/1.1), section 7.2.1)
123 - ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
125 - Implemented initial support for running Ganeti daemons as separate
126 users, see configure-time flags ``--with-user-prefix`` and
127 ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
129 - Instances can be removed after export (``gnt-backup export
131 - Self-signed certificates generated by Ganeti now use a 2048 bit RSA
132 key (instead of 1024 bit)
133 - Added new cluster configuration file for cluster domain secret
134 - Import/export now use SSL instead of SSH
135 - Added support for showing estimated time when exporting an instance,
136 see the ``ganeti-os-interface(7)`` manpage and look for
142 *(Released Tue, 24 Aug 2010)*
145 - Don't ignore secondary node silently on non-mirrored disk templates
147 - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
148 - Fix usb_mouse parameter breaking with vnc_console (issue 109)
149 - Properly document the usb_mouse parameter
150 - Fix path in ganeti-rapi(8) (issue 116)
151 - Adjust error message when the ganeti user's .ssh directory is
153 - Add same-node-check when changing the disk template to drbd
159 *(Released Fri, 16 Jul 2010)*
162 - Add an option to only select some reboot types during qa/burnin.
163 (on some hypervisors consequent reboots are not supported)
164 - Fix infrequent race condition in master failover. Sometimes the old
165 master ip address would be still detected as up for a short time
166 after it was removed, causing failover to fail.
167 - Decrease mlockall warnings when the ctypes module is missing. On
168 Python 2.4 we support running even if no ctypes module is installed,
169 but we were too verbose about this issue.
170 - Fix building on old distributions, on which man doesn't have a
172 - Fix RAPI not to ignore the MAC address on instance creation
173 - Implement the old instance creation format in the RAPI client.
179 *(Released Thu, 01 Jul 2010)*
181 A small bugfix release:
182 - Fix disk adoption: broken by strict --disk option checking in 2.1.4
183 - Fix batch-create: broken in the whole 2.1 series due to a lookup on
184 a non-existing option
185 - Fix instance create: the --force-variant option was ignored
186 - Improve pylint 0.21 compatibility and warnings with Python 2.6
187 - Fix modify node storage with non-FQDN arguments
188 - Fix RAPI client to authenticate under Python 2.6 when used
189 for more than 5 requests needing authentication
190 - Fix gnt-instance modify -t (storage) giving a wrong error message
191 when converting a non-shutdown drbd instance to plain
197 *(Released Fri, 18 Jun 2010)*
199 A small bugfix release:
201 - Fix live migration of KVM instances started with older Ganeti
202 versions which had fewer hypervisor parameters
203 - Fix gnt-instance grow-disk on down instances
204 - Fix an error-reporting bug during instance migration
205 - Better checking of the ``--net`` and ``--disk`` values, to avoid
206 silently ignoring broken ones
207 - Fix an RPC error reporting bug affecting, for example, RAPI client
209 - Fix bug triggered by different API version os-es on different nodes
210 - Fix a bug in instance startup with custom hvparams: OS level
211 parameters would fail to be applied.
212 - Fix the RAPI client under Python 2.6 (but more work is needed to
213 make it work completely well with OpenSSL)
214 - Fix handling of errors when resolving names from DNS
220 *(Released Thu, 3 Jun 2010)*
222 A medium sized development cycle. Some new features, and some
223 fixes/small improvements/cleanups.
228 The node deamon now tries to mlock itself into memory, unless the
229 ``--no-mlock`` flag is passed. It also doesn't fail if it can't write
230 its logs, and falls back to console logging. This allows emergency
231 features such as ``gnt-node powercycle`` to work even in the event of a
232 broken node disk (tested offlining the disk hosting the node's
233 filesystem and dropping its memory caches; don't try this at home)
235 KVM: add vhost-net acceleration support. It can be tested with a new
236 enough version of the kernel and of qemu-kvm.
238 KVM: Add instance chrooting feature. If you use privilege dropping for
239 your VMs you can also now force them to chroot to an empty directory,
240 before starting the emulated guest.
242 KVM: Add maximum migration bandwith and maximum downtime tweaking
243 support (requires a new-enough version of qemu-kvm).
245 Cluster verify will now warn if the master node doesn't have the master
248 Add a new (incompatible) instance creation request format to RAPI which
249 supports all parameters (previously only a subset was supported, and it
250 wasn't possible to extend the old format to accomodate all the new
251 features. The old format is still supported, and a client can check for
252 this feature, before using it, by checking for its presence in the
253 ``features`` RAPI resource.
255 Now with ancient latin support. Try it passing the ``--roman`` option to
256 ``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
257 (requires the python-roman module to be installed, in order to work).
262 As usual many internal code refactorings, documentation updates, and
265 - Lots of improvements and cleanups to the experimental Remote API
266 (RAPI) client library.
267 - A new unit test suite for the core daemon libraries.
268 - A fix to creating missing directories makes sure the umask is not
269 applied anymore. This enforces the same directory permissions
271 - Better handling terminating daemons with ctrl+c (used when running
272 them in debugging mode).
273 - Fix a race condition in live migrating a KVM instance, when stat()
274 on the old proc status file returned EINVAL, which is an unexpected
276 - Fixed manpage checking with newer man and utf-8 charachters. But now
277 you need the en_US.UTF-8 locale enabled to build Ganeti from git.
283 *(Released Fri, 7 May 2010)*
285 Fix a bug which prevented untagged KVM instances from starting.
291 *(Released Fri, 7 May 2010)*
293 Another release with a long development cycle, during which many
294 different features were added.
299 The KVM hypervisor now can run the individual instances as non-root, to
300 reduce the impact of a VM being hijacked due to bugs in the
301 hypervisor. It is possible to run all instances as a single (non-root)
302 user, to manually specify a user for each instance, or to dynamically
303 allocate a user out of a cluster-wide pool to each instance, with the
304 guarantee that no two instances will run under the same user ID on any
307 An experimental RAPI client library, that can be used standalone
308 (without the other Ganeti libraries), is provided in the source tree as
309 ``lib/rapi/client.py``. Note this client might change its interface in
310 the future, as we iterate on its capabilities.
312 A new command, ``gnt-cluster renew-crypto`` has been added to easily
313 replace the cluster's certificates and crypto keys. This might help in
314 case they have been compromised, or have simply expired.
316 A new disk option for instance creation has been added that allows one
317 to "adopt" currently existing logical volumes, with data
318 preservation. This should allow easier migration to Ganeti from
319 unmanaged (or managed via other software) instances.
321 Another disk improvement is the possibility to convert between redundant
322 (DRBD) and plain (LVM) disk configuration for an instance. This should
323 allow better scalability (starting with one node and growing the
324 cluster, or shrinking a two-node cluster to one node).
326 A new feature that could help with automated node failovers has been
327 implemented: if a node sees itself as offline (by querying the master
328 candidates), it will try to shutdown (hard) all instances and any active
329 DRBD devices. This reduces the risk of duplicate instances if an
330 external script automatically failovers the instances on such nodes. To
331 enable this, the cluster parameter ``maintain_node_health`` should be
332 enabled; in the future this option (per the name) will enable other
333 automatic maintenance features.
335 Instance export/import now will reuse the original instance
336 specifications for all parameters; that means exporting an instance,
337 deleting it and the importing it back should give an almost identical
338 instance. Note that the default import behaviour has changed from
339 before, where it created only one NIC; now it recreates the original
342 Cluster verify has added a few new checks: SSL certificates validity,
343 /etc/hosts consistency across the cluster, etc.
348 As usual, many internal changes were done, documentation fixes,
351 - Fixed cluster initialization with disabled cluster storage (regression
353 - File-based storage supports growing the disks
354 - Fixed behaviour of node role changes
355 - Fixed cluster verify for some corner cases, plus a general rewrite of
356 cluster verify to allow future extension with more checks
357 - Fixed log spamming by watcher and node daemon (regression introduced
359 - Fixed possible validation issues when changing the list of enabled
361 - Fixed cleanup of /etc/hosts during node removal
362 - Fixed RAPI response for invalid methods
363 - Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
364 - Multiple small improvements to the KVM hypervisor (VNC usage, booting
365 from ide disks, etc.)
366 - Allow OS changes without re-installation (to record a changed OS
367 outside of Ganeti, or to allow OS renames)
368 - Allow instance creation without OS installation (useful for example if
369 the OS will be installed manually, or restored from a backup not in
371 - Implemented option to make cluster ``copyfile`` use the replication
373 - Added list of enabled hypervisors to ssconf (possibly useful for
375 - Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
377 - A partial form of node re-IP is possible via node readd, which now
378 allows changed node primary IP
379 - Command line utilities now show an informational message if the job is
381 - The logs of the master daemon now show the PID/UID/GID of the
388 *(Released Fri, 12 Mar 2010)*
390 During the 2.1.0 long release candidate cycle, a lot of improvements and
391 changes have accumulated with were released later as 2.1.1.
396 The node evacuate command (``gnt-node evacuate``) was significantly
397 rewritten, and as such the IAllocator protocol was changed - a new
398 request type has been added. This unfortunate change during a stable
399 series is designed to improve performance of node evacuations; on
400 clusters with more than about five nodes and which are well-balanced,
401 evacuation should proceed in parallel for all instances of the node
402 being evacuated. As such, any existing IAllocator scripts need to be
403 updated, otherwise the above command will fail due to the unknown
404 request. The provided "dumb" allocator has not been updated; but the
405 ganeti-htools package supports the new protocol since version 0.2.4.
407 Another important change is increased validation of node and instance
408 names. This might create problems in special cases, if invalid host
409 names are being used.
411 Also, a new layer of hypervisor parameters has been added, that sits at
412 OS level between the cluster defaults and the instance ones. This allows
413 customisation of virtualization parameters depending on the installed
414 OS. For example instances with OS 'X' may have a different KVM kernel
415 (or any other parameter) than the cluster defaults. This is intended to
416 help managing a multiple OSes on the same cluster, without manual
417 modification of each instance's parameters.
419 A tool for merging clusters, ``cluster-merge``, has been added in the
425 - Improved the int/float conversions that should make the code more
426 robust in face of errors from the node daemons
427 - Fixed the remove node code in case of internal configuration errors
428 - Fixed the node daemon behaviour in face of inconsistent queue
429 directory (e.g. read-only file-system where we can't open the files
431 - Fixed the behaviour of gnt-node modify for master candidate demotion;
432 now it either aborts cleanly or, if given the new “auto_promote”
433 parameter, will automatically promote other nodes as needed
434 - Fixed compatibility with (unreleased yet) Python 2.6.5 that would
435 completely prevent Ganeti from working
436 - Fixed bug for instance export when not all disks were successfully
438 - Fixed behaviour of node add when the new node is slow in starting up
440 - Fixed handling of signals in the LUXI client, which should improve
441 behaviour of command-line scripts
442 - Added checks for invalid node/instance names in the configuration (now
443 flagged during cluster verify)
444 - Fixed watcher behaviour for disk activation errors
445 - Fixed two potentially endless loops in http library, which led to the
446 RAPI daemon hanging and consuming 100% CPU in some cases
447 - Fixed bug in RAPI daemon related to hashed passwords
448 - Fixed bug for unintended qemu-level bridging of multi-NIC KVM
450 - Enhanced compatibility with non-Debian OSes, but not using absolute
451 path in some commands and allowing customisation of the ssh
452 configuration directory
453 - Fixed possible future issue with new Python versions by abiding to the
454 proper use of ``__slots__`` attribute on classes
455 - Added checks that should prevent directory traversal attacks
456 - Many documentation fixes based on feedback from users
461 - Added an “early_release” more for instance replace disks and node
462 evacuate, where we release locks earlier and thus allow higher
463 parallelism within the cluster
464 - Added watcher hooks, intended to allow the watcher to restart other
465 daemons (e.g. from the ganeti-nbma project), but they can be used of
466 course for any other purpose
467 - Added a compile-time disable for DRBD barriers, to increase
468 performance if the administrator trusts the power supply or the
469 storage system to not lose writes
470 - Added the option of using syslog for logging instead of, or in
471 addition to, Ganeti's own log files
472 - Removed boot restriction for paravirtual NICs for KVM, recent versions
473 can indeed boot from a paravirtual NIC
474 - Added a generic debug level for many operations; while this is not
475 used widely yet, it allows one to pass the debug value all the way to
477 - Enhanced the hooks environment for instance moves (failovers,
478 migrations) where the primary/secondary nodes changed during the
479 operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
480 - Enhanced data validations for many user-supplied values; one important
481 item is the restrictions imposed on instance and node names, which
482 might reject some (invalid) host names
483 - Add a configure-time option to disable file-based storage, if it's not
484 needed; this allows greater security separation between the master
485 node and the other nodes from the point of view of the inter-node RPC
487 - Added user notification in interactive tools if job is waiting in the
488 job queue or trying to acquire locks
489 - Added log messages when a job is waiting for locks
490 - Added filtering by node tags in instance operations which admit
491 multiple instances (start, stop, reboot, reinstall)
492 - Added a new tool for cluster mergers, ``cluster-merge``
493 - Parameters from command line which are of the form ``a=b,c=d`` can now
494 use backslash escapes to pass in values which contain commas,
495 e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
497 - For KVM, the instance name is the first parameter passed to KVM, so
498 that it's more visible in the process list
504 *(Released Tue, 2 Mar 2010)*
506 Ganeti 2.1 brings many improvements with it. Major changes:
508 - Added infrastructure to ease automated disk repairs
509 - Added new daemon to export configuration data in a cheaper way than
511 - Instance NICs can now be routed instead of being associated with a
513 - Improved job locking logic to reduce impact of jobs acquiring multiple
514 locks waiting for other long-running jobs
516 In-depth implementation details can be found in the Ganeti 2.1 design
522 - Added chroot hypervisor
523 - Added more options to xen-hvm hypervisor (``kernel_path`` and
525 - Added more options to xen-pvm hypervisor (``use_bootloader``,
526 ``bootloader_path`` and ``bootloader_args``)
527 - Added the ``use_localtime`` option for the xen-hvm and kvm
528 hypervisors, and the default value for this has changed to false (in
529 2.0 xen-hvm always enabled it)
530 - Added luxi call to submit multiple jobs in one go
531 - Added cluster initialization option to not modify ``/etc/hosts``
533 - Added network interface parameters
534 - Added dry run mode to some LUs
535 - Added RAPI resources:
537 - ``/2/instances/[instance_name]/info``
538 - ``/2/instances/[instance_name]/replace-disks``
539 - ``/2/nodes/[node_name]/evacuate``
540 - ``/2/nodes/[node_name]/migrate``
541 - ``/2/nodes/[node_name]/role``
542 - ``/2/nodes/[node_name]/storage``
543 - ``/2/nodes/[node_name]/storage/modify``
544 - ``/2/nodes/[node_name]/storage/repair``
546 - Added OpCodes to evacuate or migrate all instances on a node
547 - Added new command to list storage elements on nodes (``gnt-node
548 list-storage``) and modify them (``gnt-node modify-storage``)
549 - Added new ssconf files with master candidate IP address
550 (``ssconf_master_candidates_ips``), node primary IP address
551 (``ssconf_node_primary_ips``) and node secondary IP address
552 (``ssconf_node_secondary_ips``)
553 - Added ``ganeti-confd`` and a client library to query the Ganeti
554 configuration via UDP
555 - Added ability to run hooks after cluster initialization and before
557 - Added automatic mode for disk replace (``gnt-instance replace-disks
559 - Added ``gnt-instance recreate-disks`` to re-create (empty) disks
560 after catastrophic data-loss
561 - Added ``gnt-node repair-storage`` command to repair damaged LVM volume
563 - Added ``gnt-instance move`` command to move instances
564 - Added ``gnt-cluster watcher`` command to control watcher
565 - Added ``gnt-node powercycle`` command to powercycle nodes
566 - Added new job status field ``lock_status``
567 - Added parseable error codes to cluster verification (``gnt-cluster
568 verify --error-codes``) and made output less verbose (use
569 ``--verbose`` to restore previous behaviour)
570 - Added UUIDs to the main config entities (cluster, nodes, instances)
571 - Added support for OS variants
572 - Added support for hashed passwords in the Ganeti remote API users file
574 - Added option to specify maximum timeout on instance shutdown
575 - Added ``--no-ssh-init`` option to ``gnt-cluster init``
576 - Added new helper script to start and stop Ganeti daemons
577 (``daemon-util``), with the intent to reduce the work necessary to
578 adjust Ganeti for non-Debian distributions and to start/stop daemons
580 - Added more unittests
581 - Fixed critical bug in ganeti-masterd startup
582 - Removed the configure-time ``kvm-migration-port`` parameter, this is
583 now customisable at the cluster level for both the KVM and Xen
584 hypervisors using the new ``migration_port`` parameter
585 - Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
586 reinstalling an instance
587 - Allowed ``@`` in tag names
588 - Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
589 - Many documentation updates
590 - Distribute hypervisor files on ``gnt-cluster redist-conf``
591 - ``gnt-instance reinstall`` can now reinstall multiple instances
592 - Updated many command line parameters
593 - Introduced new OS API version 15
594 - No longer support a default hypervisor
595 - Treat virtual LVs as inexistent
596 - Improved job locking logic to reduce lock contention
597 - Match instance and node names case insensitively
598 - Reimplemented bash completion script to be more complete
605 *(Released Thu, 4 Feb 2010)*
607 - Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
608 - Fix a string formatting bug
609 - Improve safety of the code in some error paths
610 - Improve data validation in the master of values returned from nodes
616 *(Released Thu, 17 Dec 2009)*
618 - Fix security issue due to missing validation of iallocator names; this
619 allows local and remote execution of arbitrary executables
620 - Fix failure of gnt-node list during instance removal
621 - Ship the RAPI documentation in the archive
627 *(Released Wed, 30 Sep 2009)*
629 - Fixed many wrong messages
630 - Fixed a few bugs related to the locking library
631 - Fixed MAC checking at instance creation time
632 - Fixed a DRBD parsing bug related to gaps in /proc/drbd
633 - Fixed a few issues related to signal handling in both daemons and
635 - Fixed the example startup script provided
636 - Fixed insserv dependencies in the example startup script (patch from
638 - Fixed handling of drained nodes in the iallocator framework
639 - Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
641 - Fixed error related to invalid job IDs in job polling
642 - Fixed job/opcode persistence on unclean master shutdown
643 - Fixed handling of partial job processing after unclean master
645 - Fixed error reporting from LUs, previously all errors were converted
646 into execution errors
647 - Fixed error reporting from burnin
648 - Decreased significantly the memory usage of the job queue
649 - Optimised slightly multi-job submission
650 - Optimised slightly opcode loading
651 - Backported the multi-job submit framework from the development
652 branch; multi-instance start and stop should be faster
653 - Added script to clean archived jobs after 21 days; this will reduce
654 the size of the queue directory
655 - Added some extra checks in disk size tracking
656 - Added an example ethers hook script
657 - Added a cluster parameter that prevents Ganeti from modifying of
659 - Added more node information to RAPI responses
660 - Added a ``gnt-job watch`` command that allows following the ouput of a
662 - Added a bind-address option to ganeti-rapi
663 - Added more checks to the configuration verify
664 - Enhanced the burnin script such that some operations can be retried
666 - Converted instance reinstall to multi-instance model
672 *(Released Fri, 7 Aug 2009)*
674 - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
675 to allow using the pre-2.0.2 behaviour in activation, if any existing
676 instances have mismatched disk sizes in the configuration
677 - Added ``gnt-cluster repair-disk-sizes`` command to check and update
678 any configuration mismatches for disk sizes
679 - Added ``gnt-master cluste-failover --no-voting`` to allow master
680 failover to work on two-node clusters
681 - Fixed the ``--net`` option of ``gnt-backup import``, which was
683 - Fixed detection of OS script errors in ``gnt-backup export``
684 - Fixed exit code of ``gnt-backup export``
690 *(Released Fri, 17 Jul 2009)*
692 - Added experimental support for stripped logical volumes; this should
693 enhance performance but comes with a higher complexity in the block
694 device handling; stripping is only enabled when passing
695 ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
696 affected even in the non-stripped mode
697 - Improved resiliency against transient failures at the end of DRBD
698 resyncs, and in general of DRBD resync checks
699 - Fixed a couple of issues with exports and snapshot errors
700 - Fixed a couple of issues in instance listing
701 - Added display of the disk size in ``gnt-instance info``
702 - Fixed checking for valid OSes in instance creation
703 - Fixed handling of the "vcpus" parameter in instance listing and in
704 general of invalid parameters
705 - Fixed http server library, and thus RAPI, to handle invalid
706 username/password combinations correctly; this means that now they
707 report unauthorized for queries too, not only for modifications,
708 allowing earlier detect of configuration problems
709 - Added a new "role" node list field, equivalent to the master/master
710 candidate/drained/offline flags combinations
711 - Fixed cluster modify and changes of candidate pool size
712 - Fixed cluster verify error messages for wrong files on regular nodes
713 - Fixed a couple of issues with node demotion from master candidate role
714 - Fixed node readd issues
715 - Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
716 - Added a new ``--no-voting`` option for masterfailover to fix failover
717 on two-nodes clusters when the former master node is unreachable
718 - Added instance reinstall over RAPI
724 *(Released Tue, 16 Jun 2009)*
726 - added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
727 allow re-adding the start in single-user option (regression from 1.2)
728 - the watcher writes the instance status to a file, to allow monitoring
729 to report the instance status (from the master) based on cached
730 results of the watcher's queries; while this can get stale if the
731 watcher is being locked due to other work on the cluster, this is
733 - the watcher now also restarts the node daemon and the rapi daemon if
735 - fixed the watcher to handle full and drained queue cases
736 - hooks export more instance data in the environment, which helps if
737 hook scripts need to take action based on the instance's properties
738 (no longer need to query back into ganeti)
739 - instance failovers when the instance is stopped do not check for free
740 RAM, so that failing over a stopped instance is possible in low memory
742 - rapi uses queries for tags instead of jobs (for less job traffic), and
743 for cluster tags it won't talk to masterd at all but read them from
745 - a couple of error handling fixes in RAPI
746 - drbd handling: improved the error handling of inconsistent disks after
747 resync to reduce the frequency of "there are some degraded disks for
748 this instance" messages
749 - fixed a bug in live migration when DRBD doesn't want to reconnect (the
750 error handling path called a wrong function name)
756 *(Released Wed, 27 May 2009)*
758 - no changes from rc5
761 Version 2.0 release candidate 5
762 -------------------------------
764 *(Released Wed, 20 May 2009)*
766 - fix a couple of bugs (validation, argument checks)
767 - fix ``gnt-cluster getmaster`` on non-master nodes (regression)
768 - some small improvements to RAPI and IAllocator
769 - make watcher automatically start the master daemon if down
772 Version 2.0 release candidate 4
773 -------------------------------
775 *(Released Mon, 27 Apr 2009)*
777 - change the OS list to not require locks; this helps with big clusters
778 - fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
779 volume group is broken
780 - ``gnt-instance info``, without any arguments, doesn't run for all
781 instances anymore; either pass ``--all`` or pass the desired
782 instances; this helps against mistakes on big clusters where listing
783 the information for all instances takes a long time
784 - miscellaneous doc and man pages fixes
787 Version 2.0 release candidate 3
788 -------------------------------
790 *(Released Wed, 8 Apr 2009)*
792 - Change the internal locking model of some ``gnt-node`` commands, in
793 order to reduce contention (and blocking of master daemon) when
794 batching many creation/reinstall jobs
795 - Fixes to Xen soft reboot
796 - No longer build documentation at build time, instead distribute it in
797 the archive, in order to reduce the need for the whole docbook/rst
801 Version 2.0 release candidate 2
802 -------------------------------
804 *(Released Fri, 27 Mar 2009)*
806 - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
807 - Fix watcher startup sequence, improves the behaviour of busy clusters
808 - Some other fixes in ``gnt-cluster verify``, ``gnt-instance
809 replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
810 bind address and other places
811 - Some documentation fixes and updates
814 Version 2.0 release candidate 1
815 -------------------------------
817 *(Released Mon, 2 Mar 2009)*
819 - More documentation updates, now all docs should be more-or-less
821 - A couple of small fixes (mixed hypervisor clusters, offline nodes,
823 - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
825 - Fix an issue related to $libdir/run/ganeti and cluster creation
831 *(Released Thu, 19 Feb 2009)*
833 - Xen PVM and KVM have switched the default value for the instance root
834 disk to the first partition on the first drive, instead of the whole
835 drive; this means that the OS installation scripts must be changed
837 - Man pages have been updated
838 - RAPI has been switched by default to HTTPS, and the exported functions
839 should all work correctly
840 - RAPI v1 has been removed
841 - Many improvements to the KVM hypervisor
842 - Block device errors are now better reported
843 - Many other bugfixes and small improvements
849 *(Released Mon, 26 Jan 2009)*
851 - Version 2 is a general rewrite of the code and therefore the
852 differences are too many to list, see the design document for 2.0 in
853 the ``doc/`` subdirectory for more details
854 - In this beta version there is not yet a migration path from 1.2 (there
855 will be one in the final 2.0 release)
856 - A few significant changes are:
858 - all commands are executed by a daemon (``ganeti-masterd``) and the
859 various ``gnt-*`` commands are just front-ends to it
860 - all the commands are entered into, and executed from a job queue,
861 see the ``gnt-job(8)`` manpage
862 - the RAPI daemon supports read-write operations, secured by basic
863 HTTP authentication on top of HTTPS
864 - DRBD version 0.7 support has been removed, DRBD 8 is the only
865 supported version (when migrating from Ganeti 1.2 to 2.0, you need
866 to migrate to DRBD 8 first while still running Ganeti 1.2)
867 - DRBD devices are using statically allocated minor numbers, which
868 will be assigned to existing instances during the migration process
869 - there is support for both Xen PVM and Xen HVM instances running on
871 - KVM virtualization is supported too
872 - file-based storage has been implemented, which means that it is
873 possible to run the cluster without LVM and DRBD storage, for
874 example using a shared filesystem exported from shared storage (and
875 still have live migration)
881 *(Released Tue, 13 Jan 2009)*
883 - Change the default reboot type in ``gnt-instance reboot`` to "hard"
884 - Reuse the old instance mac address by default on instance import, if
885 the instance name is the same.
886 - Handle situations in which the node info rpc returns incomplete
888 - Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
889 - Improved version of batcher:
892 - instance mac address support
893 - support for HVM clusters/instances
895 - Add an option to show the number of cpu sockets and nodes in
897 - Support OSes that handle more than one version of the OS api (but do
898 not change the current API in any other way)
899 - Fix ``gnt-node migrate``
900 - ``gnt-debug`` man page
901 - Fixes various more typos and small issues
902 - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
908 *(Released Wed, 24 Sep 2008)*
910 - new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
911 type of disk exported to fully virtualized instances.
912 - provide access to the serial console of HVM instances
913 - instance auto_balance flag, set by default. If turned off it will
914 avoid warnings on cluster verify if there is not enough memory to fail
915 over an instance. in the future it will prevent automatically failing
916 it over when we will support that.
917 - batcher tool for instance creation, see ``tools/README.batcher``
918 - ``gnt-instance reinstall --select-os`` to interactively select a new
919 operating system when reinstalling an instance.
920 - when changing the memory amount on instance modify a check has been
921 added that the instance will be able to start. also warnings are
922 emitted if the instance will not be able to fail over, if auto_balance
924 - documentation fixes
925 - sync fields between ``gnt-instance list/modify/add/import``
926 - fix a race condition in drbd when the sync speed was set after giving
927 the device a remote peer.
933 *(Released Tue, 22 Jul 2008)*
935 - note: the allowed size and number of tags per object were reduced
936 - fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
937 - fixed twisted 8.x compatibility
938 - fixed ``gnt-instance replace-disks`` with iallocator
939 - add TCP keepalives on twisted connections to detect restarted nodes
940 - disk increase support, see ``gnt-instance grow-disk``
941 - implement bulk node/instance query for RAPI
942 - add tags in node/instance listing (optional)
943 - experimental migration (and live migration) support, read the man page
944 for ``gnt-instance migrate``
945 - the ``ganeti-watcher`` logs are now timestamped, and the watcher also
946 has some small improvements in handling its state file
952 *(Released Fri, 13 Jun 2008)*
954 - Experimental readonly, REST-based remote API implementation;
955 automatically started on master node, TCP port 5080, if enabled by
956 ``--enable-rapi`` parameter to configure script.
957 - Instance allocator support. Add and import instance accept a
958 ``--iallocator`` parameter, and call that instance allocator to decide
959 which node to use for the instance. The iallocator document describes
960 what's expected from an allocator script.
961 - ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
962 ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
963 node is lost there is still enough memory to fail over the instances
965 - ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
966 ``gnt-cluster verify``, to check for site-specific compliance. All the
967 hooks will run, and their output, if any, will be displayed. Any
968 failing hook will make the verification return an error value.
969 - ``gnt-cluster verify`` now checks that its peers are reachable on the
970 primary and secondary interfaces
971 - ``gnt-node add`` now supports the ``--readd`` option, to readd a node
972 that is still declared as part of the cluster and has failed.
973 - ``gnt-* list`` commands now accept a new ``-o +field`` way of
974 specifying output fields, that just adds the chosen fields to the
976 - ``gnt-backup`` now has a new ``remove`` command to delete an existing
977 export from the filesystem.
978 - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
979 have been added. Using them you can enable/disable acpi and pae
980 support, and specify a path for a cd image to be exported to the
981 instance. These parameters as the name suggest only work on HVM
983 - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
984 PAE support will be set to the previously hardcoded values, but the
985 (previously hardcoded) path to the CDROM ISO image will be unset and
986 if required, needs to be set manually with ``gnt-instance modify``
988 - The address to which an instance's VNC console is bound is now
989 selectable per-instance, rather than being cluster wide. Of course
990 this only applies to instances controlled via VNC, so currently just
991 applies to HVM clusters.
997 *(Released Mon, 18 Feb 2008)*
999 - more tweaks to the disk activation code (especially helpful for DRBD)
1000 - change the default ``gnt-instance list`` output format, now there is
1001 one combined status field (see the manpage for the exact values this
1003 - some more fixes for the mac export to hooks change
1004 - make Ganeti not break with DRBD 8.2.x (which changed the version
1005 format in ``/proc/drbd``) (issue 24)
1006 - add an upgrade tool from "remote_raid1" disk template to "drbd" disk
1007 template, allowing migration from DRBD0.7+MD to DRBD8
1013 *(Released Wed, 30 Jan 2008)*
1015 - fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
1017 - add command aliases infrastructure and a few aliases
1018 - allow listing of VCPUs in the ``gnt-instance list`` and improve the
1019 man pages and the ``--help`` option of ``gnt-node
1020 list``/``gnt-instance list``
1021 - fix ``gnt-backup list`` with down nodes (issue 21)
1022 - change the tools location (move from $pkgdatadir to $pkglibdir/tools)
1023 - fix the dist archive and add a check for including svn/git files in
1025 - some developer-related changes: improve the burnin and the QA suite,
1026 add an upload script for testing during development
1032 *(Released Wed, 16 Jan 2008)*
1034 - experimental HVM support, read the install document, section
1035 "Initializing the cluster"
1036 - allow for the PVM hypervisor per-instance kernel and initrd paths
1037 - add a new command ``gnt-cluster verify-disks`` which uses a new
1038 algorithm to improve the reconnection of the DRBD pairs if the device
1039 on the secondary node has gone away
1040 - make logical volume code auto-activate LVs at disk activation time
1041 - slightly improve the speed of activating disks
1042 - allow specification of the MAC address at instance creation time, and
1043 changing it later via ``gnt-instance modify``
1044 - fix handling of external commands that generate lots of output on
1046 - update documentation with regard to minimum version of DRBD8 supported
1052 *(Released Tue, 4 Dec 2007)*
1054 - Log the ``xm create`` output to the node daemon log on failure (to
1055 help diagnosing the error)
1056 - In debug mode, log all external commands output if failed to the logs
1057 - Change parsing of lvm commands to ignore stderr
1063 *(Released Wed, 28 Nov 2007)*
1065 - Another round of updates to the DRBD 8 code to deal with more failures
1066 in the replace secondary node operation
1067 - Some more logging of failures in disk operations (lvm, drbd)
1068 - A few documentation updates
1075 *(Released Tue, 13 Nov 2007)*
1077 - Change configuration file format from Python's Pickle to JSON.
1078 Upgrading is possible using the cfgupgrade utility.
1079 - Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
1080 faster replace disks and is more stable (DRBD 8 has many improvements
1081 compared to DRBD 0.7)
1082 - Added command line tags support (see man pages for ``gnt-instance``,
1083 ``gnt-node``, ``gnt-cluster``)
1084 - Added instance rename support
1085 - Added multi-instance startup/shutdown
1086 - Added cluster rename support
1087 - Added ``gnt-node evacuate`` to simplify some node operations
1088 - Added instance reboot operation that can speedup reboot as compared to
1090 - Soften the requirement that hostnames are in FQDN format
1091 - The ``ganeti-watcher`` now activates drbd pairs after secondary node
1093 - Removed dependency on debian's patched fping that uses the
1094 non-standard ``-S`` option
1095 - Now the OS definitions are searched for in multiple, configurable
1096 paths (easier for distros to package)
1097 - Some changes to the hooks infrastructure (especially the new
1098 post-configuration update hook)
1099 - Other small bugfixes
1101 .. vim: set textwidth=72 :
projects / ganeti-local / blob