9 - The default of the ``/2/instances/[instance_name]/rename`` RAPI
10 resource's ``ip_check`` parameter changed from ``True`` to ``False``
11 to match the underlying LUXI interface
12 - When creating file-based instances via RAPI, the ``file_driver``
13 parameter no longer defaults to ``loop`` and must be specified
14 - The deprecated "bridge" nic parameter is no longer supported. Use
16 - Support for the undocumented and deprecated RAPI instance creation
17 request format version 0 has been dropped. Use version 1, supported
18 since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
19 - Pyparsing 1.4.6 or above is required, see :doc:`installation
20 documentation <install>`
21 - The "cluster-verify" hooks are now executed per group by the
22 OP_CLUSTER_VERIFY_GROUP opcode. This maintains the same behavior if
23 you just run "gnt-cluster verify", which generates one op per group.
31 - Added a new parameter to instance stop/start called ``--no-remember``
32 that will make the state change to not be remembered
38 *(Released Thu, 12 May 2011)*
40 Many bug-fixes and a few new small features:
42 - Fixed a bug related to log opening failures
43 - Fixed a bug in instance listing with orphan instances
44 - Fixed a bug which prevented resetting the cluster-level node parameter
45 ``oob_program`` to the default
46 - Many fixes related to the ``cluster-merge`` tool
47 - Fixed a race condition in the lock monitor, which caused failures
48 during (at least) creation of many instances in parallel
49 - Improved output for gnt-job info
50 - Removed the quiet flag on some ssh calls which prevented debugging
52 - Improved the N+1 failure messages in cluster verify by actually
53 showing the memory values (needed and available)
54 - Increased lock attempt timeouts so that when executing long operations
55 (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
56 too early and thus prevent the use of the 'fair' mechanism
57 - Changed instance query data (``gnt-instance info``) to not acquire
58 locks unless needed, thus allowing its use on locked instance if only
59 static information is asked for
60 - Improved behaviour with filesystems that do not support rename on an
62 - Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
63 kept locks on all nodes during the wipe, which is unneeded
64 - Fixed ``gnt-watcher`` handling of errors during hooks execution
65 - Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
66 10GiB) which caused the wipe to fail right at the end in some cases
67 - Fixed master IP activation when doing master failover with no-voting
68 - Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
69 the master node itself
70 - Fixed potential data-loss in under disk full conditions, where Ganeti
71 wouldn't check correctly the return code and would consider
72 partially-written files 'correct'
73 - Fixed bug related to multiple VGs and DRBD disk replacing
74 - Added new disk parameter ``metavg`` that allows placement of the meta
75 device for DRBD in a different volume group
76 - Fixed error handling in the node daemon when the system libc doesn't
77 have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
78 - Fixed lock release during replace-disks, which kept cluster-wide locks
79 when doing disk replaces with an iallocator script
80 - Added check for missing bridges in cluster verify
81 - Handle EPIPE errors while writing to the terminal better, so that
82 piping the output to e.g. ``less`` doesn't cause a backtrace
83 - Fixed rare case where a ^C during Luxi calls could have been
84 interpreted as server errors, instead of simply terminating
85 - Fixed a race condition in LUGroupAssignNodes (``gnt-group
87 - Added a few more parameters to the KVM hypervisor, allowing a second
88 CDROM, custom disk type for CDROMs and a floppy image
89 - Removed redundant message in instance rename when the name is given
91 - Added option to ``gnt-instance recreate-disks`` to allow creating the
92 disks on new nodes, allowing recreation when the original instance
93 nodes are completely gone
94 - Added option when converting disk templates to DRBD to skip waiting
95 for the resync, in order to make the instance available sooner
96 - Added two new variables to the OS scripts environment (containing the
98 - Made the root_path and optional parameter for the xen-pvm hypervisor,
99 to allow use of ``pvgrub`` as bootloader
100 - Changed the instance memory modifications to only check out-of-memory
101 conditions on memory increases, and turned the secondary node warnings
102 into errors (they can still be overridden via ``--force``)
103 - Fixed the handling of a corner case when the Python installation gets
104 corrupted (e.g. a bad disk) while ganeti-noded is running and we try
105 to execute a command that doesn't exist
106 - Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
107 node of the instance returned failures during instance shutdown; this
108 adds the option ``--ignore-consistency`` to gnt-instance move
110 And as usual, various improvements to the error messages, documentation
116 *(Released Wed, 09 Mar 2011)*
118 Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
119 the RAPI users file if run twice (even with ``-dry-run``).
121 The release fixes that bug (nothing else changed).
127 *(Released Mon, 07 Mar 2011)*
129 Final 2.4.0 release. Just a few small fixes:
131 - Fixed RAPI node evacuate
132 - Fixed the kvm-ifup script
133 - Fixed internal error handling for special job cases
134 - Updated man page to specify the escaping feature for options
140 *(Released Mon, 28 Feb 2011)*
142 A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
143 that this feature wiped the disks of the wrong instance, leading to loss
148 - Fixed title of query field containing instance name
149 - Expanded the glossary in the documentation
150 - Fixed one unittest (internal issue)
156 *(Released Mon, 21 Feb 2011)*
158 A number of bug fixes plus just a couple functionality changes.
160 On the user-visible side, the ``gnt-* list`` command output has changed
161 with respect to "special" field states. The current rc1 style of display
162 can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
163 the default output mode special fields states are displayed as follows:
165 - Offline resource: ``*``
166 - Unavailable/not applicable: ``-``
167 - Data missing (RPC failure): ``?``
168 - Unknown field: ``??``
170 Another user-visible change is the addition of ``--force-join`` to
175 - ``tools/cluster-merge`` has seen many fixes and is now enabled again
176 - Fixed regression in RAPI/instance reinstall where all parameters were
177 required (instead of optional)
178 - Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
179 - Fixed iallocator usage (offline nodes were not considered offline)
180 - Fixed ``gnt-node list`` with respect to non-vm_capable nodes
181 - Fixed hypervisor and OS parameter validation with respect to
183 - Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
185 - Fixed ``tools/listrunner`` with respect to agent-based usage
191 *(Released Fri, 4 Feb 2011)*
193 Many changes and fixes since the beta1 release. While there were some
194 internal changes, the code has been mostly stabilised for the RC
197 Note: the dumb allocator was removed in this release, as it was not kept
198 up-to-date with the IAllocator protocol changes. It is recommended to
199 use the ``hail`` command from the ganeti-htools package.
201 Note: the 2.4 and up versions of Ganeti are not compatible with the
202 0.2.x branch of ganeti-htools. You need to upgrade to
203 ganeti-htools-0.3.0 (or later).
205 Regressions fixed from 2.3
206 ~~~~~~~~~~~~~~~~~~~~~~~~~~
208 - Fixed the ``gnt-cluster verify-disks`` command
209 - Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
211 - Fixed disk adoption breakage
212 - Fixed wrong headers in instance listing for field aliases
217 - Fixed corner case in KVM handling of NICs
218 - Fixed many cases of wrong handling of non-vm_capable nodes
219 - Fixed a bug where a missing instance symlink was not possible to
220 recreate with any ``gnt-*`` command (now ``gnt-instance
221 activate-disks`` does it)
222 - Fixed the volume group name as reported by ``gnt-cluster
224 - Increased timeouts for the import-export code, hopefully leading to
225 fewer aborts due network or instance timeouts
226 - Fixed bug in ``gnt-node list-storage``
227 - Fixed bug where not all daemons were started on cluster
228 initialisation, but only at the first watcher run
229 - Fixed many bugs in the OOB implementation
230 - Fixed watcher behaviour in presence of instances with offline
232 - Fixed instance list output for instances running on the wrong node
233 - a few fixes to the cluster-merge tool, but it still cannot merge
234 multi-node groups (currently it is not recommended to use this tool)
240 - Improved network configuration for the KVM hypervisor
241 - Added e1000 as a supported NIC for Xen-HVM
242 - Improved the lvmstrap tool to also be able to use partitions, as
243 opposed to full disks
244 - Improved speed of disk wiping (the cluster parameter
245 ``prealloc_wipe_disks``, so that it has a low impact on the total time
246 of instance creations
247 - Added documentation for the OS parameters
248 - Changed ``gnt-instance deactivate-disks`` so that it can work if the
249 hypervisor is not responding
250 - Added display of blacklisted and hidden OS information in
252 - Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
253 NIC and node parameters, which might create problems with currently
254 invalid (but undetected) configuration files, but prevents validation
255 failures when unrelated parameters are modified
256 - Changed cluster initialisation to wait for the master daemon to become
258 - Expanded the RAPI interface:
260 - Added config redistribution resource
261 - Added activation/deactivation of instance disks
262 - Added export of console information
264 - Implemented log file reopening on SIGHUP, which allows using
265 logrotate(8) for the Ganeti log files
266 - Added a basic OOB helper script as an example
272 *(Released Fri, 14 Jan 2011)*
277 - Fixed timezone issues when formatting timestamps
278 - Added support for node groups, available via ``gnt-group`` and other
280 - Added out-of-band framework and management, see :doc:`design
281 document <design-oob>`
282 - Removed support for roman numbers from ``gnt-node list`` and
283 ``gnt-instance list``.
284 - Allowed modification of master network interface via ``gnt-cluster
285 modify --master-netdev``
286 - Accept offline secondaries while shutting down instance disks
287 - Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
288 - Added support for multiple LVM volume groups
289 - Avoid sorting nodes for ``gnt-node list`` if specific nodes are
291 - Added commands to list available fields:
293 - ``gnt-node list-fields``
294 - ``gnt-group list-fields``
295 - ``gnt-instance list-fields``
297 - Updated documentation and man pages
302 - Moved ``rapi_users`` file into separate directory, now named
303 ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
305 - Added new tool for running commands on many machines,
306 ``tools/ganeti-listrunner``
307 - Implemented more verbose result in ``OpInstanceConsole`` opcode, also
308 improving the ``gnt-instance console`` output
309 - Allowed customisation of disk index separator at ``configure`` time
310 - Export node group allocation policy to :doc:`iallocator <iallocator>`
311 - Added support for non-partitioned md disks in ``lvmstrap``
312 - Added script to gracefully power off KVM instances
313 - Split ``utils`` module into smaller parts
314 - Changed query operations to return more detailed information, e.g.
315 whether an information is unavailable due to an offline node. To use
316 this new functionality, the LUXI call ``Query`` must be used. Field
317 information is now stored by the master daemon and can be retrieved
318 using ``QueryFields``. Instances, nodes and groups can also be queried
319 using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
320 exposed via RAPI). The following commands make use of this
321 infrastructure change:
324 - ``gnt-group list-fields``
326 - ``gnt-node list-fields``
327 - ``gnt-instance list``
328 - ``gnt-instance list-fields``
329 - ``gnt-debug locks``
334 - New RAPI resources (see :doc:`rapi`):
338 - ``/2/groups/[group_name]``
339 - ``/2/groups/[group_name]/assign-nodes``
340 - ``/2/groups/[group_name]/modify``
341 - ``/2/groups/[group_name]/rename``
342 - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
346 - Implemented ``no_install`` for instance creation
347 - Implemented OS parameters for instance reinstallation, allowing
348 use of special settings on reinstallation (e.g. for preserving data)
353 - Added IPv6 support in import/export
354 - Pause DRBD synchronization while wiping disks on instance creation
355 - Updated unittests and QA scripts
356 - Improved network parameters passed to KVM
357 - Converted man pages from docbook to reStructuredText
363 *(Released Mon, 20 Dec 2010)*
365 Released version 2.3.1~rc1 without any changes.
371 *(Released Wed, 1 Dec 2010)*
373 - impexpd: Disable OpenSSL compression in socat if possible (backport
374 from master, commit e90739d625b, see :doc:`installation guide
375 <install-quick>` for details)
376 - Changed unittest coverage report to exclude test scripts
377 - Added script to check version format
383 *(Released Wed, 1 Dec 2010)*
385 Released version 2.3.0~rc1 without any changes.
391 *(Released Fri, 19 Nov 2010)*
393 A number of bugfixes and documentation updates:
395 - Update ganeti-os-interface documentation
396 - Fixed a bug related to duplicate MACs or similar items which should be
398 - Fix breakage in OS state modify
399 - Reinstall instance: disallow offline secondaries (fixes bug related to
400 OS changing but reinstall failing)
401 - plus all the other fixes between 2.2.1 and 2.2.2
407 *(Released Tue, 2 Nov 2010)*
409 - Fixed clearing of the default iallocator using ``gnt-cluster modify``
410 - Fixed master failover race with watcher
411 - Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
413 - Accept previously stopped instance for export with instance removal
414 - Simplify and extend the environment variables for instance OS scripts
415 - Added new node flags, ``master_capable`` and ``vm_capable``
416 - Added optional instance disk wiping prior during allocation. This is a
417 cluster-wide option and can be set/modified using
418 ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
419 - Added IPv6 support, see :doc:`design document <design-2.3>` and
421 - Added a new watcher option (``--ignore-pause``)
422 - Added option to ignore offline node on instance start/stop
423 (``--ignore-offline``)
424 - Allow overriding OS parameters with ``gnt-instance reinstall``
425 - Added ability to change node's secondary IP address using ``gnt-node
427 - Implemented privilege separation for all daemons except
428 ``ganeti-noded``, see ``configure`` options
429 - Complain if an instance's disk is marked faulty in ``gnt-cluster
431 - Implemented job priorities (see ``ganeti(7)`` manpage)
432 - Ignore failures while shutting down instances during failover from
434 - Exit daemon's bootstrap process only once daemon is ready
435 - Export more information via ``LUInstanceQuery``/remote API
436 - Improved documentation, QA and unittests
437 - RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
438 restart if the file was created or changed
439 - Added LUXI protocol version sent with each request and response,
440 allowing detection of server/client mismatches
441 - Moved the Python scripts among gnt-* and ganeti-* into modules
442 - Moved all code related to setting up SSH to an external script,
444 - Infrastructure changes for node group support in future versions
450 *(Released Fri, 19 Nov 2010)*
452 A few small bugs fixed, and some improvements to the build system:
454 - Fix documentation regarding conversion to drbd
455 - Fix validation of parameters in cluster modify (``gnt-cluster modify
457 - Fix error handling in node modify with multiple changes
458 - Allow remote imports without checked names
464 *(Released Tue, 19 Oct 2010)*
466 - Disable SSL session ID cache in RPC client
472 *(Released Thu, 14 Oct 2010)*
474 - Fix interaction between Curl/GnuTLS and the Python's HTTP server
475 (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
477 - Fix problems with interaction between Curl and Python's HTTP server,
478 resulting in increased speed in many RPC calls
479 - Improve our release script to prevent breakage with older aclocal and
486 *(Released Thu, 7 Oct 2010)*
488 - Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
489 value retrieved from master
490 - Added support for blacklisted or hidden OS definitions
491 - Added simple lock monitor (accessible via (``gnt-debug locks``)
492 - Added support for -mem-path in KVM hypervisor abstraction layer
493 - Allow overriding instance parameters in tool for inter-cluster
494 instance moves (``tools/move-instance``)
495 - Improved opcode summaries (e.g. in ``gnt-job list``)
496 - Improve consistency of OS listing by sorting it
497 - Documentation updates
503 *(Released Fri, 8 Oct 2010)*
505 - Rebuild with a newer autotools version, to fix python 2.6 compatibility
511 *(Released Mon, 4 Oct 2010)*
513 - Fixed regression in ``gnt-instance rename``
519 *(Released Wed, 22 Sep 2010)*
521 - Fixed OS_VARIANT variable for OS scripts
522 - Fixed cluster tag operations via RAPI
523 - Made ``setup-ssh`` exit with non-zero code if an error occurred
524 - Disabled RAPI CA checks in watcher
530 *(Released Mon, 23 Aug 2010)*
532 - Support DRBD versions of the format "a.b.c.d"
534 - Re-introduce support for usage from multiple threads in RAPI client
535 - Instance renames and modify via RAPI
536 - Work around race condition between processing and archival in job
538 - Mark opcodes following failed one as failed, too
539 - Job field ``lock_status`` was removed due to difficulties making it
540 work with the changed job queue in Ganeti 2.2; a better way to monitor
541 locks is expected for a later 2.2.x release
542 - Fixed dry-run behaviour with many commands
543 - Support ``ssh-agent`` again when adding nodes
544 - Many additional bugfixes
550 *(Released Fri, 30 Jul 2010)*
552 Important change: the internal RPC mechanism between Ganeti nodes has
553 changed from using a home-grown http library (based on the Python base
554 libraries) to use the PycURL library. This requires that PycURL is
555 installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
556 against GnuTLS by default. cURL's support for GnuTLS had known issues
557 before cURL 7.21.0 and we recommend using the latest cURL release or
558 linking against OpenSSL. Most other distributions already link PycURL
559 and cURL against OpenSSL. The command::
561 python -c 'import pycurl; print pycurl.version'
563 can be used to determine the libraries PycURL and cURL are linked
566 Other significant changes:
568 - Rewrote much of the internals of the job queue, in order to achieve
569 better parallelism; this decouples job query operations from the job
570 processing, and it should allow much nicer behaviour of the master
571 daemon under load, and it also has uncovered some long-standing bugs
572 related to the job serialisation (now fixed)
573 - Added a default iallocator setting to the cluster parameters,
574 eliminating the need to always pass nodes or an iallocator for
575 operations that require selection of new node(s)
576 - Added experimental support for the LXC virtualization method
577 - Added support for OS parameters, which allows the installation of
578 instances to pass parameter to OS scripts in order to customise the
580 - Added a hypervisor parameter controlling the migration type (live or
581 non-live), since hypervisors have various levels of reliability; this
582 has renamed the 'live' parameter to 'mode'
583 - Added a cluster parameter ``reserved_lvs`` that denotes reserved
584 logical volumes, meaning that cluster verify will ignore them and not
585 flag their presence as errors
586 - The watcher will now reset the error count for failed instances after
587 8 hours, thus allowing self-healing if the problem that caused the
588 instances to be down/fail to start has cleared in the meantime
589 - Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
590 check for, and warn, if the drbd module parameter ``usermode_helper``
591 is not consistent with the cluster-wide setting; this is needed to
592 make diagnose easier of failed drbd creations
593 - Started adding base IPv6 support, but this is not yet
594 enabled/available for use
595 - Rename operations (cluster, instance) will now return the new name,
596 which is especially useful if a short name was passed in
597 - Added support for instance migration in RAPI
598 - Added a tool to pre-configure nodes for the SSH setup, before joining
599 them to the cluster; this will allow in the future a simplified model
600 for node joining (but not yet fully enabled in 2.2); this needs the
601 paramiko python library
602 - Fixed handling of name-resolving errors
603 - Fixed consistency of job results on the error path
604 - Fixed master-failover race condition when executed multiple times in
606 - Fixed many bugs related to the job queue (mostly introduced during the
607 2.2 development cycle, so not all are impacting 2.1)
608 - Fixed instance migration with missing disk symlinks
609 - Fixed handling of unknown jobs in ``gnt-job archive``
610 - And many other small fixes/improvements
614 - Enhanced both the unittest and the QA coverage
615 - Switched the opcode validation to a generic model, and extended the
616 validation to all opcode parameters
617 - Changed more parts of the code that write shell scripts to use the
619 - Switched the master daemon to use the asyncore library for the Luxi
626 *(Released Thu, 17 Jun 2010)*
628 - Added tool (``move-instance``) and infrastructure to move instances
629 between separate clusters (see :doc:`separate documentation
630 <move-instance>` and :doc:`design document <design-2.2>`)
631 - Added per-request RPC timeout
632 - RAPI now requires a Content-Type header for requests with a body (e.g.
633 ``PUT`` or ``POST``) which must be set to ``application/json`` (see
634 :rfc:`2616` (HTTP/1.1), section 7.2.1)
635 - ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
637 - Implemented initial support for running Ganeti daemons as separate
638 users, see configure-time flags ``--with-user-prefix`` and
639 ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
641 - Instances can be removed after export (``gnt-backup export
643 - Self-signed certificates generated by Ganeti now use a 2048 bit RSA
644 key (instead of 1024 bit)
645 - Added new cluster configuration file for cluster domain secret
646 - Import/export now use SSL instead of SSH
647 - Added support for showing estimated time when exporting an instance,
648 see the ``ganeti-os-interface(7)`` manpage and look for
655 *(Released Tue, 16 Nov 2010)*
657 Some more bugfixes. Unless critical bugs occur, this will be the last
660 - Fix case of MAC special-values
661 - Fix mac checker regex
662 - backend: Fix typo causing "out of range" error
663 - Add missing --units in gnt-instance list man page
669 *(Released Tue, 24 Aug 2010)*
672 - Don't ignore secondary node silently on non-mirrored disk templates
674 - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
675 - Fix usb_mouse parameter breaking with vnc_console (issue 109)
676 - Properly document the usb_mouse parameter
677 - Fix path in ganeti-rapi(8) (issue 116)
678 - Adjust error message when the ganeti user's .ssh directory is
680 - Add same-node-check when changing the disk template to drbd
686 *(Released Fri, 16 Jul 2010)*
689 - Add an option to only select some reboot types during qa/burnin.
690 (on some hypervisors consequent reboots are not supported)
691 - Fix infrequent race condition in master failover. Sometimes the old
692 master ip address would be still detected as up for a short time
693 after it was removed, causing failover to fail.
694 - Decrease mlockall warnings when the ctypes module is missing. On
695 Python 2.4 we support running even if no ctypes module is installed,
696 but we were too verbose about this issue.
697 - Fix building on old distributions, on which man doesn't have a
699 - Fix RAPI not to ignore the MAC address on instance creation
700 - Implement the old instance creation format in the RAPI client.
706 *(Released Thu, 01 Jul 2010)*
708 A small bugfix release:
709 - Fix disk adoption: broken by strict --disk option checking in 2.1.4
710 - Fix batch-create: broken in the whole 2.1 series due to a lookup on
711 a non-existing option
712 - Fix instance create: the --force-variant option was ignored
713 - Improve pylint 0.21 compatibility and warnings with Python 2.6
714 - Fix modify node storage with non-FQDN arguments
715 - Fix RAPI client to authenticate under Python 2.6 when used
716 for more than 5 requests needing authentication
717 - Fix gnt-instance modify -t (storage) giving a wrong error message
718 when converting a non-shutdown drbd instance to plain
724 *(Released Fri, 18 Jun 2010)*
726 A small bugfix release:
728 - Fix live migration of KVM instances started with older Ganeti
729 versions which had fewer hypervisor parameters
730 - Fix gnt-instance grow-disk on down instances
731 - Fix an error-reporting bug during instance migration
732 - Better checking of the ``--net`` and ``--disk`` values, to avoid
733 silently ignoring broken ones
734 - Fix an RPC error reporting bug affecting, for example, RAPI client
736 - Fix bug triggered by different API version os-es on different nodes
737 - Fix a bug in instance startup with custom hvparams: OS level
738 parameters would fail to be applied.
739 - Fix the RAPI client under Python 2.6 (but more work is needed to
740 make it work completely well with OpenSSL)
741 - Fix handling of errors when resolving names from DNS
747 *(Released Thu, 3 Jun 2010)*
749 A medium sized development cycle. Some new features, and some
750 fixes/small improvements/cleanups.
755 The node deamon now tries to mlock itself into memory, unless the
756 ``--no-mlock`` flag is passed. It also doesn't fail if it can't write
757 its logs, and falls back to console logging. This allows emergency
758 features such as ``gnt-node powercycle`` to work even in the event of a
759 broken node disk (tested offlining the disk hosting the node's
760 filesystem and dropping its memory caches; don't try this at home)
762 KVM: add vhost-net acceleration support. It can be tested with a new
763 enough version of the kernel and of qemu-kvm.
765 KVM: Add instance chrooting feature. If you use privilege dropping for
766 your VMs you can also now force them to chroot to an empty directory,
767 before starting the emulated guest.
769 KVM: Add maximum migration bandwith and maximum downtime tweaking
770 support (requires a new-enough version of qemu-kvm).
772 Cluster verify will now warn if the master node doesn't have the master
775 Add a new (incompatible) instance creation request format to RAPI which
776 supports all parameters (previously only a subset was supported, and it
777 wasn't possible to extend the old format to accomodate all the new
778 features. The old format is still supported, and a client can check for
779 this feature, before using it, by checking for its presence in the
780 ``features`` RAPI resource.
782 Now with ancient latin support. Try it passing the ``--roman`` option to
783 ``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
784 (requires the python-roman module to be installed, in order to work).
789 As usual many internal code refactorings, documentation updates, and
792 - Lots of improvements and cleanups to the experimental Remote API
793 (RAPI) client library.
794 - A new unit test suite for the core daemon libraries.
795 - A fix to creating missing directories makes sure the umask is not
796 applied anymore. This enforces the same directory permissions
798 - Better handling terminating daemons with ctrl+c (used when running
799 them in debugging mode).
800 - Fix a race condition in live migrating a KVM instance, when stat()
801 on the old proc status file returned EINVAL, which is an unexpected
803 - Fixed manpage checking with newer man and utf-8 charachters. But now
804 you need the en_US.UTF-8 locale enabled to build Ganeti from git.
810 *(Released Fri, 7 May 2010)*
812 Fix a bug which prevented untagged KVM instances from starting.
818 *(Released Fri, 7 May 2010)*
820 Another release with a long development cycle, during which many
821 different features were added.
826 The KVM hypervisor now can run the individual instances as non-root, to
827 reduce the impact of a VM being hijacked due to bugs in the
828 hypervisor. It is possible to run all instances as a single (non-root)
829 user, to manually specify a user for each instance, or to dynamically
830 allocate a user out of a cluster-wide pool to each instance, with the
831 guarantee that no two instances will run under the same user ID on any
834 An experimental RAPI client library, that can be used standalone
835 (without the other Ganeti libraries), is provided in the source tree as
836 ``lib/rapi/client.py``. Note this client might change its interface in
837 the future, as we iterate on its capabilities.
839 A new command, ``gnt-cluster renew-crypto`` has been added to easily
840 replace the cluster's certificates and crypto keys. This might help in
841 case they have been compromised, or have simply expired.
843 A new disk option for instance creation has been added that allows one
844 to "adopt" currently existing logical volumes, with data
845 preservation. This should allow easier migration to Ganeti from
846 unmanaged (or managed via other software) instances.
848 Another disk improvement is the possibility to convert between redundant
849 (DRBD) and plain (LVM) disk configuration for an instance. This should
850 allow better scalability (starting with one node and growing the
851 cluster, or shrinking a two-node cluster to one node).
853 A new feature that could help with automated node failovers has been
854 implemented: if a node sees itself as offline (by querying the master
855 candidates), it will try to shutdown (hard) all instances and any active
856 DRBD devices. This reduces the risk of duplicate instances if an
857 external script automatically failovers the instances on such nodes. To
858 enable this, the cluster parameter ``maintain_node_health`` should be
859 enabled; in the future this option (per the name) will enable other
860 automatic maintenance features.
862 Instance export/import now will reuse the original instance
863 specifications for all parameters; that means exporting an instance,
864 deleting it and the importing it back should give an almost identical
865 instance. Note that the default import behaviour has changed from
866 before, where it created only one NIC; now it recreates the original
869 Cluster verify has added a few new checks: SSL certificates validity,
870 /etc/hosts consistency across the cluster, etc.
875 As usual, many internal changes were done, documentation fixes,
878 - Fixed cluster initialization with disabled cluster storage (regression
880 - File-based storage supports growing the disks
881 - Fixed behaviour of node role changes
882 - Fixed cluster verify for some corner cases, plus a general rewrite of
883 cluster verify to allow future extension with more checks
884 - Fixed log spamming by watcher and node daemon (regression introduced
886 - Fixed possible validation issues when changing the list of enabled
888 - Fixed cleanup of /etc/hosts during node removal
889 - Fixed RAPI response for invalid methods
890 - Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
891 - Multiple small improvements to the KVM hypervisor (VNC usage, booting
892 from ide disks, etc.)
893 - Allow OS changes without re-installation (to record a changed OS
894 outside of Ganeti, or to allow OS renames)
895 - Allow instance creation without OS installation (useful for example if
896 the OS will be installed manually, or restored from a backup not in
898 - Implemented option to make cluster ``copyfile`` use the replication
900 - Added list of enabled hypervisors to ssconf (possibly useful for
902 - Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
904 - A partial form of node re-IP is possible via node readd, which now
905 allows changed node primary IP
906 - Command line utilities now show an informational message if the job is
908 - The logs of the master daemon now show the PID/UID/GID of the
915 *(Released Fri, 12 Mar 2010)*
917 During the 2.1.0 long release candidate cycle, a lot of improvements and
918 changes have accumulated with were released later as 2.1.1.
923 The node evacuate command (``gnt-node evacuate``) was significantly
924 rewritten, and as such the IAllocator protocol was changed - a new
925 request type has been added. This unfortunate change during a stable
926 series is designed to improve performance of node evacuations; on
927 clusters with more than about five nodes and which are well-balanced,
928 evacuation should proceed in parallel for all instances of the node
929 being evacuated. As such, any existing IAllocator scripts need to be
930 updated, otherwise the above command will fail due to the unknown
931 request. The provided "dumb" allocator has not been updated; but the
932 ganeti-htools package supports the new protocol since version 0.2.4.
934 Another important change is increased validation of node and instance
935 names. This might create problems in special cases, if invalid host
936 names are being used.
938 Also, a new layer of hypervisor parameters has been added, that sits at
939 OS level between the cluster defaults and the instance ones. This allows
940 customisation of virtualization parameters depending on the installed
941 OS. For example instances with OS 'X' may have a different KVM kernel
942 (or any other parameter) than the cluster defaults. This is intended to
943 help managing a multiple OSes on the same cluster, without manual
944 modification of each instance's parameters.
946 A tool for merging clusters, ``cluster-merge``, has been added in the
952 - Improved the int/float conversions that should make the code more
953 robust in face of errors from the node daemons
954 - Fixed the remove node code in case of internal configuration errors
955 - Fixed the node daemon behaviour in face of inconsistent queue
956 directory (e.g. read-only file-system where we can't open the files
958 - Fixed the behaviour of gnt-node modify for master candidate demotion;
959 now it either aborts cleanly or, if given the new "auto_promote"
960 parameter, will automatically promote other nodes as needed
961 - Fixed compatibility with (unreleased yet) Python 2.6.5 that would
962 completely prevent Ganeti from working
963 - Fixed bug for instance export when not all disks were successfully
965 - Fixed behaviour of node add when the new node is slow in starting up
967 - Fixed handling of signals in the LUXI client, which should improve
968 behaviour of command-line scripts
969 - Added checks for invalid node/instance names in the configuration (now
970 flagged during cluster verify)
971 - Fixed watcher behaviour for disk activation errors
972 - Fixed two potentially endless loops in http library, which led to the
973 RAPI daemon hanging and consuming 100% CPU in some cases
974 - Fixed bug in RAPI daemon related to hashed passwords
975 - Fixed bug for unintended qemu-level bridging of multi-NIC KVM
977 - Enhanced compatibility with non-Debian OSes, but not using absolute
978 path in some commands and allowing customisation of the ssh
979 configuration directory
980 - Fixed possible future issue with new Python versions by abiding to the
981 proper use of ``__slots__`` attribute on classes
982 - Added checks that should prevent directory traversal attacks
983 - Many documentation fixes based on feedback from users
988 - Added an "early_release" more for instance replace disks and node
989 evacuate, where we release locks earlier and thus allow higher
990 parallelism within the cluster
991 - Added watcher hooks, intended to allow the watcher to restart other
992 daemons (e.g. from the ganeti-nbma project), but they can be used of
993 course for any other purpose
994 - Added a compile-time disable for DRBD barriers, to increase
995 performance if the administrator trusts the power supply or the
996 storage system to not lose writes
997 - Added the option of using syslog for logging instead of, or in
998 addition to, Ganeti's own log files
999 - Removed boot restriction for paravirtual NICs for KVM, recent versions
1000 can indeed boot from a paravirtual NIC
1001 - Added a generic debug level for many operations; while this is not
1002 used widely yet, it allows one to pass the debug value all the way to
1004 - Enhanced the hooks environment for instance moves (failovers,
1005 migrations) where the primary/secondary nodes changed during the
1006 operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1007 - Enhanced data validations for many user-supplied values; one important
1008 item is the restrictions imposed on instance and node names, which
1009 might reject some (invalid) host names
1010 - Add a configure-time option to disable file-based storage, if it's not
1011 needed; this allows greater security separation between the master
1012 node and the other nodes from the point of view of the inter-node RPC
1014 - Added user notification in interactive tools if job is waiting in the
1015 job queue or trying to acquire locks
1016 - Added log messages when a job is waiting for locks
1017 - Added filtering by node tags in instance operations which admit
1018 multiple instances (start, stop, reboot, reinstall)
1019 - Added a new tool for cluster mergers, ``cluster-merge``
1020 - Parameters from command line which are of the form ``a=b,c=d`` can now
1021 use backslash escapes to pass in values which contain commas,
1022 e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1024 - For KVM, the instance name is the first parameter passed to KVM, so
1025 that it's more visible in the process list
1031 *(Released Tue, 2 Mar 2010)*
1033 Ganeti 2.1 brings many improvements with it. Major changes:
1035 - Added infrastructure to ease automated disk repairs
1036 - Added new daemon to export configuration data in a cheaper way than
1037 using the remote API
1038 - Instance NICs can now be routed instead of being associated with a
1040 - Improved job locking logic to reduce impact of jobs acquiring multiple
1041 locks waiting for other long-running jobs
1043 In-depth implementation details can be found in the Ganeti 2.1 design
1049 - Added chroot hypervisor
1050 - Added more options to xen-hvm hypervisor (``kernel_path`` and
1052 - Added more options to xen-pvm hypervisor (``use_bootloader``,
1053 ``bootloader_path`` and ``bootloader_args``)
1054 - Added the ``use_localtime`` option for the xen-hvm and kvm
1055 hypervisors, and the default value for this has changed to false (in
1056 2.0 xen-hvm always enabled it)
1057 - Added luxi call to submit multiple jobs in one go
1058 - Added cluster initialization option to not modify ``/etc/hosts``
1060 - Added network interface parameters
1061 - Added dry run mode to some LUs
1062 - Added RAPI resources:
1064 - ``/2/instances/[instance_name]/info``
1065 - ``/2/instances/[instance_name]/replace-disks``
1066 - ``/2/nodes/[node_name]/evacuate``
1067 - ``/2/nodes/[node_name]/migrate``
1068 - ``/2/nodes/[node_name]/role``
1069 - ``/2/nodes/[node_name]/storage``
1070 - ``/2/nodes/[node_name]/storage/modify``
1071 - ``/2/nodes/[node_name]/storage/repair``
1073 - Added OpCodes to evacuate or migrate all instances on a node
1074 - Added new command to list storage elements on nodes (``gnt-node
1075 list-storage``) and modify them (``gnt-node modify-storage``)
1076 - Added new ssconf files with master candidate IP address
1077 (``ssconf_master_candidates_ips``), node primary IP address
1078 (``ssconf_node_primary_ips``) and node secondary IP address
1079 (``ssconf_node_secondary_ips``)
1080 - Added ``ganeti-confd`` and a client library to query the Ganeti
1081 configuration via UDP
1082 - Added ability to run hooks after cluster initialization and before
1084 - Added automatic mode for disk replace (``gnt-instance replace-disks
1086 - Added ``gnt-instance recreate-disks`` to re-create (empty) disks
1087 after catastrophic data-loss
1088 - Added ``gnt-node repair-storage`` command to repair damaged LVM volume
1090 - Added ``gnt-instance move`` command to move instances
1091 - Added ``gnt-cluster watcher`` command to control watcher
1092 - Added ``gnt-node powercycle`` command to powercycle nodes
1093 - Added new job status field ``lock_status``
1094 - Added parseable error codes to cluster verification (``gnt-cluster
1095 verify --error-codes``) and made output less verbose (use
1096 ``--verbose`` to restore previous behaviour)
1097 - Added UUIDs to the main config entities (cluster, nodes, instances)
1098 - Added support for OS variants
1099 - Added support for hashed passwords in the Ganeti remote API users file
1101 - Added option to specify maximum timeout on instance shutdown
1102 - Added ``--no-ssh-init`` option to ``gnt-cluster init``
1103 - Added new helper script to start and stop Ganeti daemons
1104 (``daemon-util``), with the intent to reduce the work necessary to
1105 adjust Ganeti for non-Debian distributions and to start/stop daemons
1107 - Added more unittests
1108 - Fixed critical bug in ganeti-masterd startup
1109 - Removed the configure-time ``kvm-migration-port`` parameter, this is
1110 now customisable at the cluster level for both the KVM and Xen
1111 hypervisors using the new ``migration_port`` parameter
1112 - Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
1113 reinstalling an instance
1114 - Allowed ``@`` in tag names
1115 - Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
1116 - Many documentation updates
1117 - Distribute hypervisor files on ``gnt-cluster redist-conf``
1118 - ``gnt-instance reinstall`` can now reinstall multiple instances
1119 - Updated many command line parameters
1120 - Introduced new OS API version 15
1121 - No longer support a default hypervisor
1122 - Treat virtual LVs as inexistent
1123 - Improved job locking logic to reduce lock contention
1124 - Match instance and node names case insensitively
1125 - Reimplemented bash completion script to be more complete
1132 *(Released Thu, 4 Feb 2010)*
1134 - Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
1135 - Fix a string formatting bug
1136 - Improve safety of the code in some error paths
1137 - Improve data validation in the master of values returned from nodes
1143 *(Released Thu, 17 Dec 2009)*
1145 - Fix security issue due to missing validation of iallocator names; this
1146 allows local and remote execution of arbitrary executables
1147 - Fix failure of gnt-node list during instance removal
1148 - Ship the RAPI documentation in the archive
1154 *(Released Wed, 30 Sep 2009)*
1156 - Fixed many wrong messages
1157 - Fixed a few bugs related to the locking library
1158 - Fixed MAC checking at instance creation time
1159 - Fixed a DRBD parsing bug related to gaps in /proc/drbd
1160 - Fixed a few issues related to signal handling in both daemons and
1162 - Fixed the example startup script provided
1163 - Fixed insserv dependencies in the example startup script (patch from
1165 - Fixed handling of drained nodes in the iallocator framework
1166 - Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
1168 - Fixed error related to invalid job IDs in job polling
1169 - Fixed job/opcode persistence on unclean master shutdown
1170 - Fixed handling of partial job processing after unclean master
1172 - Fixed error reporting from LUs, previously all errors were converted
1173 into execution errors
1174 - Fixed error reporting from burnin
1175 - Decreased significantly the memory usage of the job queue
1176 - Optimised slightly multi-job submission
1177 - Optimised slightly opcode loading
1178 - Backported the multi-job submit framework from the development
1179 branch; multi-instance start and stop should be faster
1180 - Added script to clean archived jobs after 21 days; this will reduce
1181 the size of the queue directory
1182 - Added some extra checks in disk size tracking
1183 - Added an example ethers hook script
1184 - Added a cluster parameter that prevents Ganeti from modifying of
1186 - Added more node information to RAPI responses
1187 - Added a ``gnt-job watch`` command that allows following the ouput of a
1189 - Added a bind-address option to ganeti-rapi
1190 - Added more checks to the configuration verify
1191 - Enhanced the burnin script such that some operations can be retried
1193 - Converted instance reinstall to multi-instance model
1199 *(Released Fri, 7 Aug 2009)*
1201 - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
1202 to allow using the pre-2.0.2 behaviour in activation, if any existing
1203 instances have mismatched disk sizes in the configuration
1204 - Added ``gnt-cluster repair-disk-sizes`` command to check and update
1205 any configuration mismatches for disk sizes
1206 - Added ``gnt-master cluste-failover --no-voting`` to allow master
1207 failover to work on two-node clusters
1208 - Fixed the ``--net`` option of ``gnt-backup import``, which was
1210 - Fixed detection of OS script errors in ``gnt-backup export``
1211 - Fixed exit code of ``gnt-backup export``
1217 *(Released Fri, 17 Jul 2009)*
1219 - Added experimental support for stripped logical volumes; this should
1220 enhance performance but comes with a higher complexity in the block
1221 device handling; stripping is only enabled when passing
1222 ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
1223 affected even in the non-stripped mode
1224 - Improved resiliency against transient failures at the end of DRBD
1225 resyncs, and in general of DRBD resync checks
1226 - Fixed a couple of issues with exports and snapshot errors
1227 - Fixed a couple of issues in instance listing
1228 - Added display of the disk size in ``gnt-instance info``
1229 - Fixed checking for valid OSes in instance creation
1230 - Fixed handling of the "vcpus" parameter in instance listing and in
1231 general of invalid parameters
1232 - Fixed http server library, and thus RAPI, to handle invalid
1233 username/password combinations correctly; this means that now they
1234 report unauthorized for queries too, not only for modifications,
1235 allowing earlier detect of configuration problems
1236 - Added a new "role" node list field, equivalent to the master/master
1237 candidate/drained/offline flags combinations
1238 - Fixed cluster modify and changes of candidate pool size
1239 - Fixed cluster verify error messages for wrong files on regular nodes
1240 - Fixed a couple of issues with node demotion from master candidate role
1241 - Fixed node readd issues
1242 - Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
1243 - Added a new ``--no-voting`` option for masterfailover to fix failover
1244 on two-nodes clusters when the former master node is unreachable
1245 - Added instance reinstall over RAPI
1251 *(Released Tue, 16 Jun 2009)*
1253 - added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
1254 allow re-adding the start in single-user option (regression from 1.2)
1255 - the watcher writes the instance status to a file, to allow monitoring
1256 to report the instance status (from the master) based on cached
1257 results of the watcher's queries; while this can get stale if the
1258 watcher is being locked due to other work on the cluster, this is
1259 still an improvement
1260 - the watcher now also restarts the node daemon and the rapi daemon if
1262 - fixed the watcher to handle full and drained queue cases
1263 - hooks export more instance data in the environment, which helps if
1264 hook scripts need to take action based on the instance's properties
1265 (no longer need to query back into ganeti)
1266 - instance failovers when the instance is stopped do not check for free
1267 RAM, so that failing over a stopped instance is possible in low memory
1269 - rapi uses queries for tags instead of jobs (for less job traffic), and
1270 for cluster tags it won't talk to masterd at all but read them from
1272 - a couple of error handling fixes in RAPI
1273 - drbd handling: improved the error handling of inconsistent disks after
1274 resync to reduce the frequency of "there are some degraded disks for
1275 this instance" messages
1276 - fixed a bug in live migration when DRBD doesn't want to reconnect (the
1277 error handling path called a wrong function name)
1283 *(Released Wed, 27 May 2009)*
1285 - no changes from rc5
1288 Version 2.0 release candidate 5
1289 -------------------------------
1291 *(Released Wed, 20 May 2009)*
1293 - fix a couple of bugs (validation, argument checks)
1294 - fix ``gnt-cluster getmaster`` on non-master nodes (regression)
1295 - some small improvements to RAPI and IAllocator
1296 - make watcher automatically start the master daemon if down
1299 Version 2.0 release candidate 4
1300 -------------------------------
1302 *(Released Mon, 27 Apr 2009)*
1304 - change the OS list to not require locks; this helps with big clusters
1305 - fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
1306 volume group is broken
1307 - ``gnt-instance info``, without any arguments, doesn't run for all
1308 instances anymore; either pass ``--all`` or pass the desired
1309 instances; this helps against mistakes on big clusters where listing
1310 the information for all instances takes a long time
1311 - miscellaneous doc and man pages fixes
1314 Version 2.0 release candidate 3
1315 -------------------------------
1317 *(Released Wed, 8 Apr 2009)*
1319 - Change the internal locking model of some ``gnt-node`` commands, in
1320 order to reduce contention (and blocking of master daemon) when
1321 batching many creation/reinstall jobs
1322 - Fixes to Xen soft reboot
1323 - No longer build documentation at build time, instead distribute it in
1324 the archive, in order to reduce the need for the whole docbook/rst
1328 Version 2.0 release candidate 2
1329 -------------------------------
1331 *(Released Fri, 27 Mar 2009)*
1333 - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
1334 - Fix watcher startup sequence, improves the behaviour of busy clusters
1335 - Some other fixes in ``gnt-cluster verify``, ``gnt-instance
1336 replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
1337 bind address and other places
1338 - Some documentation fixes and updates
1341 Version 2.0 release candidate 1
1342 -------------------------------
1344 *(Released Mon, 2 Mar 2009)*
1346 - More documentation updates, now all docs should be more-or-less
1348 - A couple of small fixes (mixed hypervisor clusters, offline nodes,
1350 - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
1352 - Fix an issue related to $libdir/run/ganeti and cluster creation
1358 *(Released Thu, 19 Feb 2009)*
1360 - Xen PVM and KVM have switched the default value for the instance root
1361 disk to the first partition on the first drive, instead of the whole
1362 drive; this means that the OS installation scripts must be changed
1364 - Man pages have been updated
1365 - RAPI has been switched by default to HTTPS, and the exported functions
1366 should all work correctly
1367 - RAPI v1 has been removed
1368 - Many improvements to the KVM hypervisor
1369 - Block device errors are now better reported
1370 - Many other bugfixes and small improvements
1376 *(Released Mon, 26 Jan 2009)*
1378 - Version 2 is a general rewrite of the code and therefore the
1379 differences are too many to list, see the design document for 2.0 in
1380 the ``doc/`` subdirectory for more details
1381 - In this beta version there is not yet a migration path from 1.2 (there
1382 will be one in the final 2.0 release)
1383 - A few significant changes are:
1385 - all commands are executed by a daemon (``ganeti-masterd``) and the
1386 various ``gnt-*`` commands are just front-ends to it
1387 - all the commands are entered into, and executed from a job queue,
1388 see the ``gnt-job(8)`` manpage
1389 - the RAPI daemon supports read-write operations, secured by basic
1390 HTTP authentication on top of HTTPS
1391 - DRBD version 0.7 support has been removed, DRBD 8 is the only
1392 supported version (when migrating from Ganeti 1.2 to 2.0, you need
1393 to migrate to DRBD 8 first while still running Ganeti 1.2)
1394 - DRBD devices are using statically allocated minor numbers, which
1395 will be assigned to existing instances during the migration process
1396 - there is support for both Xen PVM and Xen HVM instances running on
1398 - KVM virtualization is supported too
1399 - file-based storage has been implemented, which means that it is
1400 possible to run the cluster without LVM and DRBD storage, for
1401 example using a shared filesystem exported from shared storage (and
1402 still have live migration)
1408 *(Released Tue, 13 Jan 2009)*
1410 - Change the default reboot type in ``gnt-instance reboot`` to "hard"
1411 - Reuse the old instance mac address by default on instance import, if
1412 the instance name is the same.
1413 - Handle situations in which the node info rpc returns incomplete
1415 - Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
1416 - Improved version of batcher:
1418 - state file support
1419 - instance mac address support
1420 - support for HVM clusters/instances
1422 - Add an option to show the number of cpu sockets and nodes in
1424 - Support OSes that handle more than one version of the OS api (but do
1425 not change the current API in any other way)
1426 - Fix ``gnt-node migrate``
1427 - ``gnt-debug`` man page
1428 - Fixes various more typos and small issues
1429 - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
1435 *(Released Wed, 24 Sep 2008)*
1437 - new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
1438 type of disk exported to fully virtualized instances.
1439 - provide access to the serial console of HVM instances
1440 - instance auto_balance flag, set by default. If turned off it will
1441 avoid warnings on cluster verify if there is not enough memory to fail
1442 over an instance. in the future it will prevent automatically failing
1443 it over when we will support that.
1444 - batcher tool for instance creation, see ``tools/README.batcher``
1445 - ``gnt-instance reinstall --select-os`` to interactively select a new
1446 operating system when reinstalling an instance.
1447 - when changing the memory amount on instance modify a check has been
1448 added that the instance will be able to start. also warnings are
1449 emitted if the instance will not be able to fail over, if auto_balance
1451 - documentation fixes
1452 - sync fields between ``gnt-instance list/modify/add/import``
1453 - fix a race condition in drbd when the sync speed was set after giving
1454 the device a remote peer.
1460 *(Released Tue, 22 Jul 2008)*
1462 - note: the allowed size and number of tags per object were reduced
1463 - fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
1464 - fixed twisted 8.x compatibility
1465 - fixed ``gnt-instance replace-disks`` with iallocator
1466 - add TCP keepalives on twisted connections to detect restarted nodes
1467 - disk increase support, see ``gnt-instance grow-disk``
1468 - implement bulk node/instance query for RAPI
1469 - add tags in node/instance listing (optional)
1470 - experimental migration (and live migration) support, read the man page
1471 for ``gnt-instance migrate``
1472 - the ``ganeti-watcher`` logs are now timestamped, and the watcher also
1473 has some small improvements in handling its state file
1479 *(Released Fri, 13 Jun 2008)*
1481 - Experimental readonly, REST-based remote API implementation;
1482 automatically started on master node, TCP port 5080, if enabled by
1483 ``--enable-rapi`` parameter to configure script.
1484 - Instance allocator support. Add and import instance accept a
1485 ``--iallocator`` parameter, and call that instance allocator to decide
1486 which node to use for the instance. The iallocator document describes
1487 what's expected from an allocator script.
1488 - ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
1489 ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
1490 node is lost there is still enough memory to fail over the instances
1492 - ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
1493 ``gnt-cluster verify``, to check for site-specific compliance. All the
1494 hooks will run, and their output, if any, will be displayed. Any
1495 failing hook will make the verification return an error value.
1496 - ``gnt-cluster verify`` now checks that its peers are reachable on the
1497 primary and secondary interfaces
1498 - ``gnt-node add`` now supports the ``--readd`` option, to readd a node
1499 that is still declared as part of the cluster and has failed.
1500 - ``gnt-* list`` commands now accept a new ``-o +field`` way of
1501 specifying output fields, that just adds the chosen fields to the
1503 - ``gnt-backup`` now has a new ``remove`` command to delete an existing
1504 export from the filesystem.
1505 - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
1506 have been added. Using them you can enable/disable acpi and pae
1507 support, and specify a path for a cd image to be exported to the
1508 instance. These parameters as the name suggest only work on HVM
1510 - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
1511 PAE support will be set to the previously hardcoded values, but the
1512 (previously hardcoded) path to the CDROM ISO image will be unset and
1513 if required, needs to be set manually with ``gnt-instance modify``
1515 - The address to which an instance's VNC console is bound is now
1516 selectable per-instance, rather than being cluster wide. Of course
1517 this only applies to instances controlled via VNC, so currently just
1518 applies to HVM clusters.
1524 *(Released Mon, 18 Feb 2008)*
1526 - more tweaks to the disk activation code (especially helpful for DRBD)
1527 - change the default ``gnt-instance list`` output format, now there is
1528 one combined status field (see the manpage for the exact values this
1530 - some more fixes for the mac export to hooks change
1531 - make Ganeti not break with DRBD 8.2.x (which changed the version
1532 format in ``/proc/drbd``) (issue 24)
1533 - add an upgrade tool from "remote_raid1" disk template to "drbd" disk
1534 template, allowing migration from DRBD0.7+MD to DRBD8
1540 *(Released Wed, 30 Jan 2008)*
1542 - fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
1544 - add command aliases infrastructure and a few aliases
1545 - allow listing of VCPUs in the ``gnt-instance list`` and improve the
1546 man pages and the ``--help`` option of ``gnt-node
1547 list``/``gnt-instance list``
1548 - fix ``gnt-backup list`` with down nodes (issue 21)
1549 - change the tools location (move from $pkgdatadir to $pkglibdir/tools)
1550 - fix the dist archive and add a check for including svn/git files in
1552 - some developer-related changes: improve the burnin and the QA suite,
1553 add an upload script for testing during development
1559 *(Released Wed, 16 Jan 2008)*
1561 - experimental HVM support, read the install document, section
1562 "Initializing the cluster"
1563 - allow for the PVM hypervisor per-instance kernel and initrd paths
1564 - add a new command ``gnt-cluster verify-disks`` which uses a new
1565 algorithm to improve the reconnection of the DRBD pairs if the device
1566 on the secondary node has gone away
1567 - make logical volume code auto-activate LVs at disk activation time
1568 - slightly improve the speed of activating disks
1569 - allow specification of the MAC address at instance creation time, and
1570 changing it later via ``gnt-instance modify``
1571 - fix handling of external commands that generate lots of output on
1573 - update documentation with regard to minimum version of DRBD8 supported
1579 *(Released Tue, 4 Dec 2007)*
1581 - Log the ``xm create`` output to the node daemon log on failure (to
1582 help diagnosing the error)
1583 - In debug mode, log all external commands output if failed to the logs
1584 - Change parsing of lvm commands to ignore stderr
1590 *(Released Wed, 28 Nov 2007)*
1592 - Another round of updates to the DRBD 8 code to deal with more failures
1593 in the replace secondary node operation
1594 - Some more logging of failures in disk operations (lvm, drbd)
1595 - A few documentation updates
1602 *(Released Tue, 13 Nov 2007)*
1604 - Change configuration file format from Python's Pickle to JSON.
1605 Upgrading is possible using the cfgupgrade utility.
1606 - Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
1607 faster replace disks and is more stable (DRBD 8 has many improvements
1608 compared to DRBD 0.7)
1609 - Added command line tags support (see man pages for ``gnt-instance``,
1610 ``gnt-node``, ``gnt-cluster``)
1611 - Added instance rename support
1612 - Added multi-instance startup/shutdown
1613 - Added cluster rename support
1614 - Added ``gnt-node evacuate`` to simplify some node operations
1615 - Added instance reboot operation that can speedup reboot as compared to
1617 - Soften the requirement that hostnames are in FQDN format
1618 - The ``ganeti-watcher`` now activates drbd pairs after secondary node
1620 - Removed dependency on debian's patched fping that uses the
1621 non-standard ``-S`` option
1622 - Now the OS definitions are searched for in multiple, configurable
1623 paths (easier for distros to package)
1624 - Some changes to the hooks infrastructure (especially the new
1625 post-configuration update hook)
1626 - Other small bugfixes
1628 .. vim: set textwidth=72 syntax=rst :