7 *(Released Tue, 18 Oct 2011)*
9 Incompatible/important changes and bugfixes
10 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12 - The default of the ``/2/instances/[instance_name]/rename`` RAPI
13 resource's ``ip_check`` parameter changed from ``True`` to ``False``
14 to match the underlying LUXI interface.
15 - The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use
16 body parameters, see :doc:`RAPI documentation <rapi>`. The server does
17 not maintain backwards-compatibility as the underlying operation
18 changed in an incompatible way. The RAPI client can talk to old
19 servers, but it needs to be told so as the return value changed.
20 - When creating file-based instances via RAPI, the ``file_driver``
21 parameter no longer defaults to ``loop`` and must be specified.
22 - The deprecated ``bridge`` NIC parameter is no longer supported. Use
24 - Support for the undocumented and deprecated RAPI instance creation
25 request format version 0 has been dropped. Use version 1, supported
26 since Ganeti 2.1.3 and :doc:`documented <rapi>`, instead.
27 - Pyparsing 1.4.6 or above is required, see :doc:`installation
28 documentation <install>`.
29 - The "cluster-verify" hooks are now executed per group by the
30 ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior
31 if you just run ``gnt-cluster verify``, which generates one opcode per
33 - The environment as passed to the OS scripts is cleared, and thus no
34 environment variables defined in the node daemon's environment will be
35 inherited by the scripts.
36 - The :doc:`iallocator <iallocator>` mode ``multi-evacuate`` has been
38 - :doc:`New iallocator modes <design-multi-reloc>` have been added to
39 support operations involving multiple node groups.
40 - Offline nodes are ignored when failing over an instance.
45 - The ganeti-htools project has been merged into the ganeti-core source
46 tree and will be built as part of Ganeti (see :doc:`install-quick`).
47 - Implemented support for :doc:`shared storage <design-shared-storage>`.
48 - Add support for disks larger than 2 TB in ``lvmstrap`` by supporting
49 GPT-style partition tables (requires `parted
50 <http://www.gnu.org/s/parted/>`_).
51 - Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor.
52 - Allowed adding tags on instance creation.
53 - Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`)
54 - Allow instances to be started in a paused state, enabling the user to
55 see the complete console output on boot using the console.
56 - Added new hypervisor flag to control default reboot behaviour
57 (``reboot_behavior``).
58 - Added support for KVM keymaps (hypervisor parameter ``keymap``).
59 - Improved out-of-band management support:
61 - Added ``gnt-node health`` command reporting the health status of
63 - Added ``gnt-node power`` command to manage power status of nodes.
64 - Added command for emergency power-off (EPO), ``gnt-cluster epo``.
66 - Instance migration can fall back to failover if instance is not
68 - Filters can be used when listing nodes, instances, groups and locks;
69 see *ganeti(7)* manpage.
70 - Added post-execution status as variables to :doc:`hooks <hooks>`
72 - Instance tags are exported/imported together with the instance.
73 - When given an explicit job ID, ``gnt-job info`` will work for archived
75 - Jobs can define dependencies on other jobs (not yet supported via
76 RAPI or command line, but used by internal commands and usable via
79 - Lock monitor (``gnt-debug locks``) shows jobs waiting for
82 - Instance failover is now available as a RAPI resource
83 (``/2/instances/[instance_name]/failover``).
84 - ``gnt-instance info`` defaults to static information if primary node
86 - Opcodes have a new ``comment`` attribute.
87 - Added basic SPICE support to KVM hypervisor.
88 - ``tools/ganeti-listrunner`` allows passing of arguments to executable.
90 Node group improvements
91 ~~~~~~~~~~~~~~~~~~~~~~~
93 - ``gnt-cluster verify`` has been modified to check groups separately,
94 thereby improving performance.
95 - Node group support has been added to ``gnt-cluster verify-disks``,
96 which now operates per node group.
97 - Watcher has been changed to work better with node groups.
99 - One process and state file per node group.
100 - Slow watcher in one group doesn't block other group's watcher.
102 - Added new command, ``gnt-group evacuate``, to move all instances in a
103 node group to other groups.
104 - Added ``gnt-instance change-group`` to move an instance to another
106 - ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support
107 per-group operations.
108 - Node groups can be tagged.
109 - Some operations switch from an exclusive to a shared lock as soon as
111 - Instance's primary and secondary nodes' groups are now available as
112 query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group``
113 and ``snodes.group.uuid``).
118 - Numerous updates to documentation and manpages.
120 - :doc:`RAPI <rapi>` documentation now has detailed parameter
123 - A lockset's internal lock is now also visible in lock monitor.
124 - Log messages from job queue workers now contain information about the
125 opcode they're processing.
126 - ``gnt-instance console`` no longer requires the instance lock.
127 - A short delay when waiting for job changes reduces the number of LUXI
128 requests significantly.
129 - DRBD metadata volumes are overwritten with zeros during disk creation.
135 *(Released Tue, 4 Oct 2011)*
137 This was the first release candidate of the 2.5 series.
143 *(Released Wed, 31 Aug 2011)*
145 This was the third beta release of the 2.5 series.
151 *(Released Mon, 22 Aug 2011)*
153 This was the second beta release of the 2.5 series.
159 *(Released Fri, 12 Aug 2011)*
161 This was the first beta release of the 2.5 series.
169 - Fixed bug when parsing command line parameter values ending in
171 - Fixed assertion error after unclean master shutdown
172 - Disable HTTP client pool for RPC, significantly reducing memory usage
179 *(Released Tue, 23 Aug 2011)*
183 - Fixed documentation for importing with ``--src-dir`` option
184 - Fixed a bug in ``ensure-dirs`` with queue/archive permissions
185 - Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel
191 *(Released Fri, 5 Aug 2011)*
193 Many bug-fixes and a few small features:
195 - Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused
196 issues when you tried to add an instance with two MAC addresses in one
198 - KVM: fixed per-instance stored UID value
199 - KVM: configure bridged NICs at migration start
200 - KVM: Fix a bug where instance will not start with never KVM versions
202 - Added OS search path to ``gnt-cluster info``
203 - Fixed an issue with ``file_storage_dir`` where you were forced to
204 provide an absolute path, but the documentation states it is a
205 relative path, the documentation was right
206 - Added a new parameter to instance stop/start called ``--no-remember``
207 that will make the state change to not be remembered
208 - Implemented ``no_remember`` at RAPI level
209 - Improved the documentation
210 - Node evacuation: don't call IAllocator if node is already empty
211 - Fixed bug in DRBD8 replace disks on current nodes
212 - Fixed bug in recreate-disks for DRBD instances
213 - Moved assertion checking locks in ``gnt-instance replace-disks``
214 causing it to abort with not owning the right locks for some situation
215 - Job queue: Fixed potential race condition when cancelling queued jobs
216 - Fixed off-by-one bug in job serial generation
217 - ``gnt-node volumes``: Fix instance names
218 - Fixed aliases in bash completion
219 - Fixed a bug in reopening log files after being sent a SIGHUP
220 - Added a flag to burnin to allow specifying VCPU count
221 - Bugfixes to non-root Ganeti configuration
227 *(Released Thu, 12 May 2011)*
229 Many bug-fixes and a few new small features:
231 - Fixed a bug related to log opening failures
232 - Fixed a bug in instance listing with orphan instances
233 - Fixed a bug which prevented resetting the cluster-level node parameter
234 ``oob_program`` to the default
235 - Many fixes related to the ``cluster-merge`` tool
236 - Fixed a race condition in the lock monitor, which caused failures
237 during (at least) creation of many instances in parallel
238 - Improved output for gnt-job info
239 - Removed the quiet flag on some ssh calls which prevented debugging
241 - Improved the N+1 failure messages in cluster verify by actually
242 showing the memory values (needed and available)
243 - Increased lock attempt timeouts so that when executing long operations
244 (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire'
245 too early and thus prevent the use of the 'fair' mechanism
246 - Changed instance query data (``gnt-instance info``) to not acquire
247 locks unless needed, thus allowing its use on locked instance if only
248 static information is asked for
249 - Improved behaviour with filesystems that do not support rename on an
251 - Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which
252 kept locks on all nodes during the wipe, which is unneeded
253 - Fixed ``gnt-watcher`` handling of errors during hooks execution
254 - Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than
255 10GiB) which caused the wipe to fail right at the end in some cases
256 - Fixed master IP activation when doing master failover with no-voting
257 - Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of
258 the master node itself
259 - Fixed potential data-loss in under disk full conditions, where Ganeti
260 wouldn't check correctly the return code and would consider
261 partially-written files 'correct'
262 - Fixed bug related to multiple VGs and DRBD disk replacing
263 - Added new disk parameter ``metavg`` that allows placement of the meta
264 device for DRBD in a different volume group
265 - Fixed error handling in the node daemon when the system libc doesn't
266 have major number 6 (i.e. if ``libc.so.6`` is not the actual libc)
267 - Fixed lock release during replace-disks, which kept cluster-wide locks
268 when doing disk replaces with an iallocator script
269 - Added check for missing bridges in cluster verify
270 - Handle EPIPE errors while writing to the terminal better, so that
271 piping the output to e.g. ``less`` doesn't cause a backtrace
272 - Fixed rare case where a ^C during Luxi calls could have been
273 interpreted as server errors, instead of simply terminating
274 - Fixed a race condition in LUGroupAssignNodes (``gnt-group
276 - Added a few more parameters to the KVM hypervisor, allowing a second
277 CDROM, custom disk type for CDROMs and a floppy image
278 - Removed redundant message in instance rename when the name is given
280 - Added option to ``gnt-instance recreate-disks`` to allow creating the
281 disks on new nodes, allowing recreation when the original instance
282 nodes are completely gone
283 - Added option when converting disk templates to DRBD to skip waiting
284 for the resync, in order to make the instance available sooner
285 - Added two new variables to the OS scripts environment (containing the
287 - Made the root_path and optional parameter for the xen-pvm hypervisor,
288 to allow use of ``pvgrub`` as bootloader
289 - Changed the instance memory modifications to only check out-of-memory
290 conditions on memory increases, and turned the secondary node warnings
291 into errors (they can still be overridden via ``--force``)
292 - Fixed the handling of a corner case when the Python installation gets
293 corrupted (e.g. a bad disk) while ganeti-noded is running and we try
294 to execute a command that doesn't exist
295 - Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary
296 node of the instance returned failures during instance shutdown; this
297 adds the option ``--ignore-consistency`` to gnt-instance move
299 And as usual, various improvements to the error messages, documentation
305 *(Released Wed, 09 Mar 2011)*
307 Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote
308 the RAPI users file if run twice (even with ``--dry-run``).
310 The release fixes that bug (nothing else changed).
316 *(Released Mon, 07 Mar 2011)*
318 Final 2.4.0 release. Just a few small fixes:
320 - Fixed RAPI node evacuate
321 - Fixed the kvm-ifup script
322 - Fixed internal error handling for special job cases
323 - Updated man page to specify the escaping feature for options
329 *(Released Mon, 28 Feb 2011)*
331 A critical fix for the ``prealloc_wipe_disks`` feature: it is possible
332 that this feature wiped the disks of the wrong instance, leading to loss
337 - Fixed title of query field containing instance name
338 - Expanded the glossary in the documentation
339 - Fixed one unittest (internal issue)
345 *(Released Mon, 21 Feb 2011)*
347 A number of bug fixes plus just a couple functionality changes.
349 On the user-visible side, the ``gnt-* list`` command output has changed
350 with respect to "special" field states. The current rc1 style of display
351 can be re-enabled by passing a new ``--verbose`` (``-v``) flag, but in
352 the default output mode special fields states are displayed as follows:
354 - Offline resource: ``*``
355 - Unavailable/not applicable: ``-``
356 - Data missing (RPC failure): ``?``
357 - Unknown field: ``??``
359 Another user-visible change is the addition of ``--force-join`` to
364 - ``tools/cluster-merge`` has seen many fixes and is now enabled again
365 - Fixed regression in RAPI/instance reinstall where all parameters were
366 required (instead of optional)
367 - Fixed ``gnt-cluster repair-disk-sizes``, was broken since Ganeti 2.2
368 - Fixed iallocator usage (offline nodes were not considered offline)
369 - Fixed ``gnt-node list`` with respect to non-vm_capable nodes
370 - Fixed hypervisor and OS parameter validation with respect to
372 - Fixed ``gnt-cluster verify`` with respect to offline nodes (mostly
374 - Fixed ``tools/listrunner`` with respect to agent-based usage
380 *(Released Fri, 4 Feb 2011)*
382 Many changes and fixes since the beta1 release. While there were some
383 internal changes, the code has been mostly stabilised for the RC
386 Note: the dumb allocator was removed in this release, as it was not kept
387 up-to-date with the IAllocator protocol changes. It is recommended to
388 use the ``hail`` command from the ganeti-htools package.
390 Note: the 2.4 and up versions of Ganeti are not compatible with the
391 0.2.x branch of ganeti-htools. You need to upgrade to
392 ganeti-htools-0.3.0 (or later).
394 Regressions fixed from 2.3
395 ~~~~~~~~~~~~~~~~~~~~~~~~~~
397 - Fixed the ``gnt-cluster verify-disks`` command
398 - Made ``gnt-cluster verify-disks`` work in parallel (as opposed to
400 - Fixed disk adoption breakage
401 - Fixed wrong headers in instance listing for field aliases
406 - Fixed corner case in KVM handling of NICs
407 - Fixed many cases of wrong handling of non-vm_capable nodes
408 - Fixed a bug where a missing instance symlink was not possible to
409 recreate with any ``gnt-*`` command (now ``gnt-instance
410 activate-disks`` does it)
411 - Fixed the volume group name as reported by ``gnt-cluster
413 - Increased timeouts for the import-export code, hopefully leading to
414 fewer aborts due network or instance timeouts
415 - Fixed bug in ``gnt-node list-storage``
416 - Fixed bug where not all daemons were started on cluster
417 initialisation, but only at the first watcher run
418 - Fixed many bugs in the OOB implementation
419 - Fixed watcher behaviour in presence of instances with offline
421 - Fixed instance list output for instances running on the wrong node
422 - a few fixes to the cluster-merge tool, but it still cannot merge
423 multi-node groups (currently it is not recommended to use this tool)
429 - Improved network configuration for the KVM hypervisor
430 - Added e1000 as a supported NIC for Xen-HVM
431 - Improved the lvmstrap tool to also be able to use partitions, as
432 opposed to full disks
433 - Improved speed of disk wiping (the cluster parameter
434 ``prealloc_wipe_disks``, so that it has a low impact on the total time
435 of instance creations
436 - Added documentation for the OS parameters
437 - Changed ``gnt-instance deactivate-disks`` so that it can work if the
438 hypervisor is not responding
439 - Added display of blacklisted and hidden OS information in
441 - Extended ``gnt-cluster verify`` to also validate hypervisor, backend,
442 NIC and node parameters, which might create problems with currently
443 invalid (but undetected) configuration files, but prevents validation
444 failures when unrelated parameters are modified
445 - Changed cluster initialisation to wait for the master daemon to become
447 - Expanded the RAPI interface:
449 - Added config redistribution resource
450 - Added activation/deactivation of instance disks
451 - Added export of console information
453 - Implemented log file reopening on SIGHUP, which allows using
454 logrotate(8) for the Ganeti log files
455 - Added a basic OOB helper script as an example
461 *(Released Fri, 14 Jan 2011)*
466 - Fixed timezone issues when formatting timestamps
467 - Added support for node groups, available via ``gnt-group`` and other
469 - Added out-of-band framework and management, see :doc:`design
470 document <design-oob>`
471 - Removed support for roman numbers from ``gnt-node list`` and
472 ``gnt-instance list``.
473 - Allowed modification of master network interface via ``gnt-cluster
474 modify --master-netdev``
475 - Accept offline secondaries while shutting down instance disks
476 - Added ``blockdev_prefix`` parameter to Xen PVM and HVM hypervisors
477 - Added support for multiple LVM volume groups
478 - Avoid sorting nodes for ``gnt-node list`` if specific nodes are
480 - Added commands to list available fields:
482 - ``gnt-node list-fields``
483 - ``gnt-group list-fields``
484 - ``gnt-instance list-fields``
486 - Updated documentation and man pages
491 - Moved ``rapi_users`` file into separate directory, now named
492 ``.../ganeti/rapi/users``, ``cfgupgrade`` moves the file and creates a
494 - Added new tool for running commands on many machines,
495 ``tools/ganeti-listrunner``
496 - Implemented more verbose result in ``OpInstanceConsole`` opcode, also
497 improving the ``gnt-instance console`` output
498 - Allowed customisation of disk index separator at ``configure`` time
499 - Export node group allocation policy to :doc:`iallocator <iallocator>`
500 - Added support for non-partitioned md disks in ``lvmstrap``
501 - Added script to gracefully power off KVM instances
502 - Split ``utils`` module into smaller parts
503 - Changed query operations to return more detailed information, e.g.
504 whether an information is unavailable due to an offline node. To use
505 this new functionality, the LUXI call ``Query`` must be used. Field
506 information is now stored by the master daemon and can be retrieved
507 using ``QueryFields``. Instances, nodes and groups can also be queried
508 using the new opcodes ``OpQuery`` and ``OpQueryFields`` (not yet
509 exposed via RAPI). The following commands make use of this
510 infrastructure change:
513 - ``gnt-group list-fields``
515 - ``gnt-node list-fields``
516 - ``gnt-instance list``
517 - ``gnt-instance list-fields``
518 - ``gnt-debug locks``
523 - New RAPI resources (see :doc:`rapi`):
527 - ``/2/groups/[group_name]``
528 - ``/2/groups/[group_name]/assign-nodes``
529 - ``/2/groups/[group_name]/modify``
530 - ``/2/groups/[group_name]/rename``
531 - ``/2/instances/[instance_name]/disk/[disk_index]/grow``
535 - Implemented ``no_install`` for instance creation
536 - Implemented OS parameters for instance reinstallation, allowing
537 use of special settings on reinstallation (e.g. for preserving data)
542 - Added IPv6 support in import/export
543 - Pause DRBD synchronization while wiping disks on instance creation
544 - Updated unittests and QA scripts
545 - Improved network parameters passed to KVM
546 - Converted man pages from docbook to reStructuredText
552 *(Released Mon, 20 Dec 2010)*
554 Released version 2.3.1~rc1 without any changes.
560 *(Released Wed, 1 Dec 2010)*
562 - impexpd: Disable OpenSSL compression in socat if possible (backport
563 from master, commit e90739d625b, see :doc:`installation guide
564 <install-quick>` for details)
565 - Changed unittest coverage report to exclude test scripts
566 - Added script to check version format
572 *(Released Wed, 1 Dec 2010)*
574 Released version 2.3.0~rc1 without any changes.
580 *(Released Fri, 19 Nov 2010)*
582 A number of bugfixes and documentation updates:
584 - Update ganeti-os-interface documentation
585 - Fixed a bug related to duplicate MACs or similar items which should be
587 - Fix breakage in OS state modify
588 - Reinstall instance: disallow offline secondaries (fixes bug related to
589 OS changing but reinstall failing)
590 - plus all the other fixes between 2.2.1 and 2.2.2
596 *(Released Tue, 2 Nov 2010)*
598 - Fixed clearing of the default iallocator using ``gnt-cluster modify``
599 - Fixed master failover race with watcher
600 - Fixed a bug in ``gnt-node modify`` which could lead to an inconsistent
602 - Accept previously stopped instance for export with instance removal
603 - Simplify and extend the environment variables for instance OS scripts
604 - Added new node flags, ``master_capable`` and ``vm_capable``
605 - Added optional instance disk wiping prior during allocation. This is a
606 cluster-wide option and can be set/modified using
607 ``gnt-cluster {init,modify} --prealloc-wipe-disks``.
608 - Added IPv6 support, see :doc:`design document <design-2.3>` and
610 - Added a new watcher option (``--ignore-pause``)
611 - Added option to ignore offline node on instance start/stop
612 (``--ignore-offline``)
613 - Allow overriding OS parameters with ``gnt-instance reinstall``
614 - Added ability to change node's secondary IP address using ``gnt-node
616 - Implemented privilege separation for all daemons except
617 ``ganeti-noded``, see ``configure`` options
618 - Complain if an instance's disk is marked faulty in ``gnt-cluster
620 - Implemented job priorities (see ``ganeti(7)`` manpage)
621 - Ignore failures while shutting down instances during failover from
623 - Exit daemon's bootstrap process only once daemon is ready
624 - Export more information via ``LUInstanceQuery``/remote API
625 - Improved documentation, QA and unittests
626 - RAPI daemon now watches ``rapi_users`` all the time and doesn't need a
627 restart if the file was created or changed
628 - Added LUXI protocol version sent with each request and response,
629 allowing detection of server/client mismatches
630 - Moved the Python scripts among gnt-* and ganeti-* into modules
631 - Moved all code related to setting up SSH to an external script,
633 - Infrastructure changes for node group support in future versions
639 *(Released Fri, 19 Nov 2010)*
641 A few small bugs fixed, and some improvements to the build system:
643 - Fix documentation regarding conversion to drbd
644 - Fix validation of parameters in cluster modify (``gnt-cluster modify
646 - Fix error handling in node modify with multiple changes
647 - Allow remote imports without checked names
653 *(Released Tue, 19 Oct 2010)*
655 - Disable SSL session ID cache in RPC client
661 *(Released Thu, 14 Oct 2010)*
663 - Fix interaction between Curl/GnuTLS and the Python's HTTP server
664 (thanks Apollon Oikonomopoulos!), finally allowing the use of Curl
666 - Fix problems with interaction between Curl and Python's HTTP server,
667 resulting in increased speed in many RPC calls
668 - Improve our release script to prevent breakage with older aclocal and
675 *(Released Thu, 7 Oct 2010)*
677 - Fixed issue 125, replace hardcoded "xenvg" in ``gnt-cluster`` with
678 value retrieved from master
679 - Added support for blacklisted or hidden OS definitions
680 - Added simple lock monitor (accessible via (``gnt-debug locks``)
681 - Added support for -mem-path in KVM hypervisor abstraction layer
682 - Allow overriding instance parameters in tool for inter-cluster
683 instance moves (``tools/move-instance``)
684 - Improved opcode summaries (e.g. in ``gnt-job list``)
685 - Improve consistency of OS listing by sorting it
686 - Documentation updates
692 *(Released Fri, 8 Oct 2010)*
694 - Rebuild with a newer autotools version, to fix python 2.6 compatibility
700 *(Released Mon, 4 Oct 2010)*
702 - Fixed regression in ``gnt-instance rename``
708 *(Released Wed, 22 Sep 2010)*
710 - Fixed OS_VARIANT variable for OS scripts
711 - Fixed cluster tag operations via RAPI
712 - Made ``setup-ssh`` exit with non-zero code if an error occurred
713 - Disabled RAPI CA checks in watcher
719 *(Released Mon, 23 Aug 2010)*
721 - Support DRBD versions of the format "a.b.c.d"
723 - Re-introduce support for usage from multiple threads in RAPI client
724 - Instance renames and modify via RAPI
725 - Work around race condition between processing and archival in job
727 - Mark opcodes following failed one as failed, too
728 - Job field ``lock_status`` was removed due to difficulties making it
729 work with the changed job queue in Ganeti 2.2; a better way to monitor
730 locks is expected for a later 2.2.x release
731 - Fixed dry-run behaviour with many commands
732 - Support ``ssh-agent`` again when adding nodes
733 - Many additional bugfixes
739 *(Released Fri, 30 Jul 2010)*
741 Important change: the internal RPC mechanism between Ganeti nodes has
742 changed from using a home-grown http library (based on the Python base
743 libraries) to use the PycURL library. This requires that PycURL is
744 installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked
745 against GnuTLS by default. cURL's support for GnuTLS had known issues
746 before cURL 7.21.0 and we recommend using the latest cURL release or
747 linking against OpenSSL. Most other distributions already link PycURL
748 and cURL against OpenSSL. The command::
750 python -c 'import pycurl; print pycurl.version'
752 can be used to determine the libraries PycURL and cURL are linked
755 Other significant changes:
757 - Rewrote much of the internals of the job queue, in order to achieve
758 better parallelism; this decouples job query operations from the job
759 processing, and it should allow much nicer behaviour of the master
760 daemon under load, and it also has uncovered some long-standing bugs
761 related to the job serialisation (now fixed)
762 - Added a default iallocator setting to the cluster parameters,
763 eliminating the need to always pass nodes or an iallocator for
764 operations that require selection of new node(s)
765 - Added experimental support for the LXC virtualization method
766 - Added support for OS parameters, which allows the installation of
767 instances to pass parameter to OS scripts in order to customise the
769 - Added a hypervisor parameter controlling the migration type (live or
770 non-live), since hypervisors have various levels of reliability; this
771 has renamed the 'live' parameter to 'mode'
772 - Added a cluster parameter ``reserved_lvs`` that denotes reserved
773 logical volumes, meaning that cluster verify will ignore them and not
774 flag their presence as errors
775 - The watcher will now reset the error count for failed instances after
776 8 hours, thus allowing self-healing if the problem that caused the
777 instances to be down/fail to start has cleared in the meantime
778 - Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti
779 check for, and warn, if the drbd module parameter ``usermode_helper``
780 is not consistent with the cluster-wide setting; this is needed to
781 make diagnose easier of failed drbd creations
782 - Started adding base IPv6 support, but this is not yet
783 enabled/available for use
784 - Rename operations (cluster, instance) will now return the new name,
785 which is especially useful if a short name was passed in
786 - Added support for instance migration in RAPI
787 - Added a tool to pre-configure nodes for the SSH setup, before joining
788 them to the cluster; this will allow in the future a simplified model
789 for node joining (but not yet fully enabled in 2.2); this needs the
790 paramiko python library
791 - Fixed handling of name-resolving errors
792 - Fixed consistency of job results on the error path
793 - Fixed master-failover race condition when executed multiple times in
795 - Fixed many bugs related to the job queue (mostly introduced during the
796 2.2 development cycle, so not all are impacting 2.1)
797 - Fixed instance migration with missing disk symlinks
798 - Fixed handling of unknown jobs in ``gnt-job archive``
799 - And many other small fixes/improvements
803 - Enhanced both the unittest and the QA coverage
804 - Switched the opcode validation to a generic model, and extended the
805 validation to all opcode parameters
806 - Changed more parts of the code that write shell scripts to use the
808 - Switched the master daemon to use the asyncore library for the Luxi
815 *(Released Thu, 17 Jun 2010)*
817 - Added tool (``move-instance``) and infrastructure to move instances
818 between separate clusters (see :doc:`separate documentation
819 <move-instance>` and :doc:`design document <design-2.2>`)
820 - Added per-request RPC timeout
821 - RAPI now requires a Content-Type header for requests with a body (e.g.
822 ``PUT`` or ``POST``) which must be set to ``application/json`` (see
823 :rfc:`2616` (HTTP/1.1), section 7.2.1)
824 - ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
826 - Implemented initial support for running Ganeti daemons as separate
827 users, see configure-time flags ``--with-user-prefix`` and
828 ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
830 - Instances can be removed after export (``gnt-backup export
832 - Self-signed certificates generated by Ganeti now use a 2048 bit RSA
833 key (instead of 1024 bit)
834 - Added new cluster configuration file for cluster domain secret
835 - Import/export now use SSL instead of SSH
836 - Added support for showing estimated time when exporting an instance,
837 see the ``ganeti-os-interface(7)`` manpage and look for
844 *(Released Tue, 16 Nov 2010)*
846 Some more bugfixes. Unless critical bugs occur, this will be the last
849 - Fix case of MAC special-values
850 - Fix mac checker regex
851 - backend: Fix typo causing "out of range" error
852 - Add missing --units in gnt-instance list man page
858 *(Released Tue, 24 Aug 2010)*
861 - Don't ignore secondary node silently on non-mirrored disk templates
863 - Fix --master-netdev arg name in gnt-cluster(8) (issue 114)
864 - Fix usb_mouse parameter breaking with vnc_console (issue 109)
865 - Properly document the usb_mouse parameter
866 - Fix path in ganeti-rapi(8) (issue 116)
867 - Adjust error message when the ganeti user's .ssh directory is
869 - Add same-node-check when changing the disk template to drbd
875 *(Released Fri, 16 Jul 2010)*
878 - Add an option to only select some reboot types during qa/burnin.
879 (on some hypervisors consequent reboots are not supported)
880 - Fix infrequent race condition in master failover. Sometimes the old
881 master ip address would be still detected as up for a short time
882 after it was removed, causing failover to fail.
883 - Decrease mlockall warnings when the ctypes module is missing. On
884 Python 2.4 we support running even if no ctypes module is installed,
885 but we were too verbose about this issue.
886 - Fix building on old distributions, on which man doesn't have a
888 - Fix RAPI not to ignore the MAC address on instance creation
889 - Implement the old instance creation format in the RAPI client.
895 *(Released Thu, 01 Jul 2010)*
897 A small bugfix release:
898 - Fix disk adoption: broken by strict --disk option checking in 2.1.4
899 - Fix batch-create: broken in the whole 2.1 series due to a lookup on
900 a non-existing option
901 - Fix instance create: the --force-variant option was ignored
902 - Improve pylint 0.21 compatibility and warnings with Python 2.6
903 - Fix modify node storage with non-FQDN arguments
904 - Fix RAPI client to authenticate under Python 2.6 when used
905 for more than 5 requests needing authentication
906 - Fix gnt-instance modify -t (storage) giving a wrong error message
907 when converting a non-shutdown drbd instance to plain
913 *(Released Fri, 18 Jun 2010)*
915 A small bugfix release:
917 - Fix live migration of KVM instances started with older Ganeti
918 versions which had fewer hypervisor parameters
919 - Fix gnt-instance grow-disk on down instances
920 - Fix an error-reporting bug during instance migration
921 - Better checking of the ``--net`` and ``--disk`` values, to avoid
922 silently ignoring broken ones
923 - Fix an RPC error reporting bug affecting, for example, RAPI client
925 - Fix bug triggered by different API version os-es on different nodes
926 - Fix a bug in instance startup with custom hvparams: OS level
927 parameters would fail to be applied.
928 - Fix the RAPI client under Python 2.6 (but more work is needed to
929 make it work completely well with OpenSSL)
930 - Fix handling of errors when resolving names from DNS
936 *(Released Thu, 3 Jun 2010)*
938 A medium sized development cycle. Some new features, and some
939 fixes/small improvements/cleanups.
944 The node deamon now tries to mlock itself into memory, unless the
945 ``--no-mlock`` flag is passed. It also doesn't fail if it can't write
946 its logs, and falls back to console logging. This allows emergency
947 features such as ``gnt-node powercycle`` to work even in the event of a
948 broken node disk (tested offlining the disk hosting the node's
949 filesystem and dropping its memory caches; don't try this at home)
951 KVM: add vhost-net acceleration support. It can be tested with a new
952 enough version of the kernel and of qemu-kvm.
954 KVM: Add instance chrooting feature. If you use privilege dropping for
955 your VMs you can also now force them to chroot to an empty directory,
956 before starting the emulated guest.
958 KVM: Add maximum migration bandwith and maximum downtime tweaking
959 support (requires a new-enough version of qemu-kvm).
961 Cluster verify will now warn if the master node doesn't have the master
964 Add a new (incompatible) instance creation request format to RAPI which
965 supports all parameters (previously only a subset was supported, and it
966 wasn't possible to extend the old format to accomodate all the new
967 features. The old format is still supported, and a client can check for
968 this feature, before using it, by checking for its presence in the
969 ``features`` RAPI resource.
971 Now with ancient latin support. Try it passing the ``--roman`` option to
972 ``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
973 (requires the python-roman module to be installed, in order to work).
978 As usual many internal code refactorings, documentation updates, and
981 - Lots of improvements and cleanups to the experimental Remote API
982 (RAPI) client library.
983 - A new unit test suite for the core daemon libraries.
984 - A fix to creating missing directories makes sure the umask is not
985 applied anymore. This enforces the same directory permissions
987 - Better handling terminating daemons with ctrl+c (used when running
988 them in debugging mode).
989 - Fix a race condition in live migrating a KVM instance, when stat()
990 on the old proc status file returned EINVAL, which is an unexpected
992 - Fixed manpage checking with newer man and utf-8 charachters. But now
993 you need the en_US.UTF-8 locale enabled to build Ganeti from git.
999 *(Released Fri, 7 May 2010)*
1001 Fix a bug which prevented untagged KVM instances from starting.
1007 *(Released Fri, 7 May 2010)*
1009 Another release with a long development cycle, during which many
1010 different features were added.
1012 Significant features
1013 ~~~~~~~~~~~~~~~~~~~~
1015 The KVM hypervisor now can run the individual instances as non-root, to
1016 reduce the impact of a VM being hijacked due to bugs in the
1017 hypervisor. It is possible to run all instances as a single (non-root)
1018 user, to manually specify a user for each instance, or to dynamically
1019 allocate a user out of a cluster-wide pool to each instance, with the
1020 guarantee that no two instances will run under the same user ID on any
1023 An experimental RAPI client library, that can be used standalone
1024 (without the other Ganeti libraries), is provided in the source tree as
1025 ``lib/rapi/client.py``. Note this client might change its interface in
1026 the future, as we iterate on its capabilities.
1028 A new command, ``gnt-cluster renew-crypto`` has been added to easily
1029 replace the cluster's certificates and crypto keys. This might help in
1030 case they have been compromised, or have simply expired.
1032 A new disk option for instance creation has been added that allows one
1033 to "adopt" currently existing logical volumes, with data
1034 preservation. This should allow easier migration to Ganeti from
1035 unmanaged (or managed via other software) instances.
1037 Another disk improvement is the possibility to convert between redundant
1038 (DRBD) and plain (LVM) disk configuration for an instance. This should
1039 allow better scalability (starting with one node and growing the
1040 cluster, or shrinking a two-node cluster to one node).
1042 A new feature that could help with automated node failovers has been
1043 implemented: if a node sees itself as offline (by querying the master
1044 candidates), it will try to shutdown (hard) all instances and any active
1045 DRBD devices. This reduces the risk of duplicate instances if an
1046 external script automatically failovers the instances on such nodes. To
1047 enable this, the cluster parameter ``maintain_node_health`` should be
1048 enabled; in the future this option (per the name) will enable other
1049 automatic maintenance features.
1051 Instance export/import now will reuse the original instance
1052 specifications for all parameters; that means exporting an instance,
1053 deleting it and the importing it back should give an almost identical
1054 instance. Note that the default import behaviour has changed from
1055 before, where it created only one NIC; now it recreates the original
1058 Cluster verify has added a few new checks: SSL certificates validity,
1059 /etc/hosts consistency across the cluster, etc.
1064 As usual, many internal changes were done, documentation fixes,
1067 - Fixed cluster initialization with disabled cluster storage (regression
1068 introduced in 2.1.1)
1069 - File-based storage supports growing the disks
1070 - Fixed behaviour of node role changes
1071 - Fixed cluster verify for some corner cases, plus a general rewrite of
1072 cluster verify to allow future extension with more checks
1073 - Fixed log spamming by watcher and node daemon (regression introduced
1075 - Fixed possible validation issues when changing the list of enabled
1077 - Fixed cleanup of /etc/hosts during node removal
1078 - Fixed RAPI response for invalid methods
1079 - Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
1080 - Multiple small improvements to the KVM hypervisor (VNC usage, booting
1081 from ide disks, etc.)
1082 - Allow OS changes without re-installation (to record a changed OS
1083 outside of Ganeti, or to allow OS renames)
1084 - Allow instance creation without OS installation (useful for example if
1085 the OS will be installed manually, or restored from a backup not in
1087 - Implemented option to make cluster ``copyfile`` use the replication
1089 - Added list of enabled hypervisors to ssconf (possibly useful for
1091 - Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
1093 - A partial form of node re-IP is possible via node readd, which now
1094 allows changed node primary IP
1095 - Command line utilities now show an informational message if the job is
1097 - The logs of the master daemon now show the PID/UID/GID of the
1104 *(Released Fri, 12 Mar 2010)*
1106 During the 2.1.0 long release candidate cycle, a lot of improvements and
1107 changes have accumulated with were released later as 2.1.1.
1112 The node evacuate command (``gnt-node evacuate``) was significantly
1113 rewritten, and as such the IAllocator protocol was changed - a new
1114 request type has been added. This unfortunate change during a stable
1115 series is designed to improve performance of node evacuations; on
1116 clusters with more than about five nodes and which are well-balanced,
1117 evacuation should proceed in parallel for all instances of the node
1118 being evacuated. As such, any existing IAllocator scripts need to be
1119 updated, otherwise the above command will fail due to the unknown
1120 request. The provided "dumb" allocator has not been updated; but the
1121 ganeti-htools package supports the new protocol since version 0.2.4.
1123 Another important change is increased validation of node and instance
1124 names. This might create problems in special cases, if invalid host
1125 names are being used.
1127 Also, a new layer of hypervisor parameters has been added, that sits at
1128 OS level between the cluster defaults and the instance ones. This allows
1129 customisation of virtualization parameters depending on the installed
1130 OS. For example instances with OS 'X' may have a different KVM kernel
1131 (or any other parameter) than the cluster defaults. This is intended to
1132 help managing a multiple OSes on the same cluster, without manual
1133 modification of each instance's parameters.
1135 A tool for merging clusters, ``cluster-merge``, has been added in the
1136 tools sub-directory.
1141 - Improved the int/float conversions that should make the code more
1142 robust in face of errors from the node daemons
1143 - Fixed the remove node code in case of internal configuration errors
1144 - Fixed the node daemon behaviour in face of inconsistent queue
1145 directory (e.g. read-only file-system where we can't open the files
1147 - Fixed the behaviour of gnt-node modify for master candidate demotion;
1148 now it either aborts cleanly or, if given the new "auto_promote"
1149 parameter, will automatically promote other nodes as needed
1150 - Fixed compatibility with (unreleased yet) Python 2.6.5 that would
1151 completely prevent Ganeti from working
1152 - Fixed bug for instance export when not all disks were successfully
1154 - Fixed behaviour of node add when the new node is slow in starting up
1156 - Fixed handling of signals in the LUXI client, which should improve
1157 behaviour of command-line scripts
1158 - Added checks for invalid node/instance names in the configuration (now
1159 flagged during cluster verify)
1160 - Fixed watcher behaviour for disk activation errors
1161 - Fixed two potentially endless loops in http library, which led to the
1162 RAPI daemon hanging and consuming 100% CPU in some cases
1163 - Fixed bug in RAPI daemon related to hashed passwords
1164 - Fixed bug for unintended qemu-level bridging of multi-NIC KVM
1166 - Enhanced compatibility with non-Debian OSes, but not using absolute
1167 path in some commands and allowing customisation of the ssh
1168 configuration directory
1169 - Fixed possible future issue with new Python versions by abiding to the
1170 proper use of ``__slots__`` attribute on classes
1171 - Added checks that should prevent directory traversal attacks
1172 - Many documentation fixes based on feedback from users
1177 - Added an "early_release" more for instance replace disks and node
1178 evacuate, where we release locks earlier and thus allow higher
1179 parallelism within the cluster
1180 - Added watcher hooks, intended to allow the watcher to restart other
1181 daemons (e.g. from the ganeti-nbma project), but they can be used of
1182 course for any other purpose
1183 - Added a compile-time disable for DRBD barriers, to increase
1184 performance if the administrator trusts the power supply or the
1185 storage system to not lose writes
1186 - Added the option of using syslog for logging instead of, or in
1187 addition to, Ganeti's own log files
1188 - Removed boot restriction for paravirtual NICs for KVM, recent versions
1189 can indeed boot from a paravirtual NIC
1190 - Added a generic debug level for many operations; while this is not
1191 used widely yet, it allows one to pass the debug value all the way to
1193 - Enhanced the hooks environment for instance moves (failovers,
1194 migrations) where the primary/secondary nodes changed during the
1195 operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
1196 - Enhanced data validations for many user-supplied values; one important
1197 item is the restrictions imposed on instance and node names, which
1198 might reject some (invalid) host names
1199 - Add a configure-time option to disable file-based storage, if it's not
1200 needed; this allows greater security separation between the master
1201 node and the other nodes from the point of view of the inter-node RPC
1203 - Added user notification in interactive tools if job is waiting in the
1204 job queue or trying to acquire locks
1205 - Added log messages when a job is waiting for locks
1206 - Added filtering by node tags in instance operations which admit
1207 multiple instances (start, stop, reboot, reinstall)
1208 - Added a new tool for cluster mergers, ``cluster-merge``
1209 - Parameters from command line which are of the form ``a=b,c=d`` can now
1210 use backslash escapes to pass in values which contain commas,
1211 e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
1213 - For KVM, the instance name is the first parameter passed to KVM, so
1214 that it's more visible in the process list
1220 *(Released Tue, 2 Mar 2010)*
1222 Ganeti 2.1 brings many improvements with it. Major changes:
1224 - Added infrastructure to ease automated disk repairs
1225 - Added new daemon to export configuration data in a cheaper way than
1226 using the remote API
1227 - Instance NICs can now be routed instead of being associated with a
1229 - Improved job locking logic to reduce impact of jobs acquiring multiple
1230 locks waiting for other long-running jobs
1232 In-depth implementation details can be found in the Ganeti 2.1 design
1238 - Added chroot hypervisor
1239 - Added more options to xen-hvm hypervisor (``kernel_path`` and
1241 - Added more options to xen-pvm hypervisor (``use_bootloader``,
1242 ``bootloader_path`` and ``bootloader_args``)
1243 - Added the ``use_localtime`` option for the xen-hvm and kvm
1244 hypervisors, and the default value for this has changed to false (in
1245 2.0 xen-hvm always enabled it)
1246 - Added luxi call to submit multiple jobs in one go
1247 - Added cluster initialization option to not modify ``/etc/hosts``
1249 - Added network interface parameters
1250 - Added dry run mode to some LUs
1251 - Added RAPI resources:
1253 - ``/2/instances/[instance_name]/info``
1254 - ``/2/instances/[instance_name]/replace-disks``
1255 - ``/2/nodes/[node_name]/evacuate``
1256 - ``/2/nodes/[node_name]/migrate``
1257 - ``/2/nodes/[node_name]/role``
1258 - ``/2/nodes/[node_name]/storage``
1259 - ``/2/nodes/[node_name]/storage/modify``
1260 - ``/2/nodes/[node_name]/storage/repair``
1262 - Added OpCodes to evacuate or migrate all instances on a node
1263 - Added new command to list storage elements on nodes (``gnt-node
1264 list-storage``) and modify them (``gnt-node modify-storage``)
1265 - Added new ssconf files with master candidate IP address
1266 (``ssconf_master_candidates_ips``), node primary IP address
1267 (``ssconf_node_primary_ips``) and node secondary IP address
1268 (``ssconf_node_secondary_ips``)
1269 - Added ``ganeti-confd`` and a client library to query the Ganeti
1270 configuration via UDP
1271 - Added ability to run hooks after cluster initialization and before
1273 - Added automatic mode for disk replace (``gnt-instance replace-disks
1275 - Added ``gnt-instance recreate-disks`` to re-create (empty) disks
1276 after catastrophic data-loss
1277 - Added ``gnt-node repair-storage`` command to repair damaged LVM volume
1279 - Added ``gnt-instance move`` command to move instances
1280 - Added ``gnt-cluster watcher`` command to control watcher
1281 - Added ``gnt-node powercycle`` command to powercycle nodes
1282 - Added new job status field ``lock_status``
1283 - Added parseable error codes to cluster verification (``gnt-cluster
1284 verify --error-codes``) and made output less verbose (use
1285 ``--verbose`` to restore previous behaviour)
1286 - Added UUIDs to the main config entities (cluster, nodes, instances)
1287 - Added support for OS variants
1288 - Added support for hashed passwords in the Ganeti remote API users file
1290 - Added option to specify maximum timeout on instance shutdown
1291 - Added ``--no-ssh-init`` option to ``gnt-cluster init``
1292 - Added new helper script to start and stop Ganeti daemons
1293 (``daemon-util``), with the intent to reduce the work necessary to
1294 adjust Ganeti for non-Debian distributions and to start/stop daemons
1296 - Added more unittests
1297 - Fixed critical bug in ganeti-masterd startup
1298 - Removed the configure-time ``kvm-migration-port`` parameter, this is
1299 now customisable at the cluster level for both the KVM and Xen
1300 hypervisors using the new ``migration_port`` parameter
1301 - Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
1302 reinstalling an instance
1303 - Allowed ``@`` in tag names
1304 - Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
1305 - Many documentation updates
1306 - Distribute hypervisor files on ``gnt-cluster redist-conf``
1307 - ``gnt-instance reinstall`` can now reinstall multiple instances
1308 - Updated many command line parameters
1309 - Introduced new OS API version 15
1310 - No longer support a default hypervisor
1311 - Treat virtual LVs as inexistent
1312 - Improved job locking logic to reduce lock contention
1313 - Match instance and node names case insensitively
1314 - Reimplemented bash completion script to be more complete
1321 *(Released Thu, 4 Feb 2010)*
1323 - Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
1324 - Fix a string formatting bug
1325 - Improve safety of the code in some error paths
1326 - Improve data validation in the master of values returned from nodes
1332 *(Released Thu, 17 Dec 2009)*
1334 - Fix security issue due to missing validation of iallocator names; this
1335 allows local and remote execution of arbitrary executables
1336 - Fix failure of gnt-node list during instance removal
1337 - Ship the RAPI documentation in the archive
1343 *(Released Wed, 30 Sep 2009)*
1345 - Fixed many wrong messages
1346 - Fixed a few bugs related to the locking library
1347 - Fixed MAC checking at instance creation time
1348 - Fixed a DRBD parsing bug related to gaps in /proc/drbd
1349 - Fixed a few issues related to signal handling in both daemons and
1351 - Fixed the example startup script provided
1352 - Fixed insserv dependencies in the example startup script (patch from
1354 - Fixed handling of drained nodes in the iallocator framework
1355 - Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
1357 - Fixed error related to invalid job IDs in job polling
1358 - Fixed job/opcode persistence on unclean master shutdown
1359 - Fixed handling of partial job processing after unclean master
1361 - Fixed error reporting from LUs, previously all errors were converted
1362 into execution errors
1363 - Fixed error reporting from burnin
1364 - Decreased significantly the memory usage of the job queue
1365 - Optimised slightly multi-job submission
1366 - Optimised slightly opcode loading
1367 - Backported the multi-job submit framework from the development
1368 branch; multi-instance start and stop should be faster
1369 - Added script to clean archived jobs after 21 days; this will reduce
1370 the size of the queue directory
1371 - Added some extra checks in disk size tracking
1372 - Added an example ethers hook script
1373 - Added a cluster parameter that prevents Ganeti from modifying of
1375 - Added more node information to RAPI responses
1376 - Added a ``gnt-job watch`` command that allows following the ouput of a
1378 - Added a bind-address option to ganeti-rapi
1379 - Added more checks to the configuration verify
1380 - Enhanced the burnin script such that some operations can be retried
1382 - Converted instance reinstall to multi-instance model
1388 *(Released Fri, 7 Aug 2009)*
1390 - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
1391 to allow using the pre-2.0.2 behaviour in activation, if any existing
1392 instances have mismatched disk sizes in the configuration
1393 - Added ``gnt-cluster repair-disk-sizes`` command to check and update
1394 any configuration mismatches for disk sizes
1395 - Added ``gnt-master cluste-failover --no-voting`` to allow master
1396 failover to work on two-node clusters
1397 - Fixed the ``--net`` option of ``gnt-backup import``, which was
1399 - Fixed detection of OS script errors in ``gnt-backup export``
1400 - Fixed exit code of ``gnt-backup export``
1406 *(Released Fri, 17 Jul 2009)*
1408 - Added experimental support for stripped logical volumes; this should
1409 enhance performance but comes with a higher complexity in the block
1410 device handling; stripping is only enabled when passing
1411 ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
1412 affected even in the non-stripped mode
1413 - Improved resiliency against transient failures at the end of DRBD
1414 resyncs, and in general of DRBD resync checks
1415 - Fixed a couple of issues with exports and snapshot errors
1416 - Fixed a couple of issues in instance listing
1417 - Added display of the disk size in ``gnt-instance info``
1418 - Fixed checking for valid OSes in instance creation
1419 - Fixed handling of the "vcpus" parameter in instance listing and in
1420 general of invalid parameters
1421 - Fixed http server library, and thus RAPI, to handle invalid
1422 username/password combinations correctly; this means that now they
1423 report unauthorized for queries too, not only for modifications,
1424 allowing earlier detect of configuration problems
1425 - Added a new "role" node list field, equivalent to the master/master
1426 candidate/drained/offline flags combinations
1427 - Fixed cluster modify and changes of candidate pool size
1428 - Fixed cluster verify error messages for wrong files on regular nodes
1429 - Fixed a couple of issues with node demotion from master candidate role
1430 - Fixed node readd issues
1431 - Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
1432 - Added a new ``--no-voting`` option for masterfailover to fix failover
1433 on two-nodes clusters when the former master node is unreachable
1434 - Added instance reinstall over RAPI
1440 *(Released Tue, 16 Jun 2009)*
1442 - added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
1443 allow re-adding the start in single-user option (regression from 1.2)
1444 - the watcher writes the instance status to a file, to allow monitoring
1445 to report the instance status (from the master) based on cached
1446 results of the watcher's queries; while this can get stale if the
1447 watcher is being locked due to other work on the cluster, this is
1448 still an improvement
1449 - the watcher now also restarts the node daemon and the rapi daemon if
1451 - fixed the watcher to handle full and drained queue cases
1452 - hooks export more instance data in the environment, which helps if
1453 hook scripts need to take action based on the instance's properties
1454 (no longer need to query back into ganeti)
1455 - instance failovers when the instance is stopped do not check for free
1456 RAM, so that failing over a stopped instance is possible in low memory
1458 - rapi uses queries for tags instead of jobs (for less job traffic), and
1459 for cluster tags it won't talk to masterd at all but read them from
1461 - a couple of error handling fixes in RAPI
1462 - drbd handling: improved the error handling of inconsistent disks after
1463 resync to reduce the frequency of "there are some degraded disks for
1464 this instance" messages
1465 - fixed a bug in live migration when DRBD doesn't want to reconnect (the
1466 error handling path called a wrong function name)
1472 *(Released Wed, 27 May 2009)*
1474 - no changes from rc5
1477 Version 2.0 release candidate 5
1478 -------------------------------
1480 *(Released Wed, 20 May 2009)*
1482 - fix a couple of bugs (validation, argument checks)
1483 - fix ``gnt-cluster getmaster`` on non-master nodes (regression)
1484 - some small improvements to RAPI and IAllocator
1485 - make watcher automatically start the master daemon if down
1488 Version 2.0 release candidate 4
1489 -------------------------------
1491 *(Released Mon, 27 Apr 2009)*
1493 - change the OS list to not require locks; this helps with big clusters
1494 - fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
1495 volume group is broken
1496 - ``gnt-instance info``, without any arguments, doesn't run for all
1497 instances anymore; either pass ``--all`` or pass the desired
1498 instances; this helps against mistakes on big clusters where listing
1499 the information for all instances takes a long time
1500 - miscellaneous doc and man pages fixes
1503 Version 2.0 release candidate 3
1504 -------------------------------
1506 *(Released Wed, 8 Apr 2009)*
1508 - Change the internal locking model of some ``gnt-node`` commands, in
1509 order to reduce contention (and blocking of master daemon) when
1510 batching many creation/reinstall jobs
1511 - Fixes to Xen soft reboot
1512 - No longer build documentation at build time, instead distribute it in
1513 the archive, in order to reduce the need for the whole docbook/rst
1517 Version 2.0 release candidate 2
1518 -------------------------------
1520 *(Released Fri, 27 Mar 2009)*
1522 - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
1523 - Fix watcher startup sequence, improves the behaviour of busy clusters
1524 - Some other fixes in ``gnt-cluster verify``, ``gnt-instance
1525 replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
1526 bind address and other places
1527 - Some documentation fixes and updates
1530 Version 2.0 release candidate 1
1531 -------------------------------
1533 *(Released Mon, 2 Mar 2009)*
1535 - More documentation updates, now all docs should be more-or-less
1537 - A couple of small fixes (mixed hypervisor clusters, offline nodes,
1539 - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
1541 - Fix an issue related to $libdir/run/ganeti and cluster creation
1547 *(Released Thu, 19 Feb 2009)*
1549 - Xen PVM and KVM have switched the default value for the instance root
1550 disk to the first partition on the first drive, instead of the whole
1551 drive; this means that the OS installation scripts must be changed
1553 - Man pages have been updated
1554 - RAPI has been switched by default to HTTPS, and the exported functions
1555 should all work correctly
1556 - RAPI v1 has been removed
1557 - Many improvements to the KVM hypervisor
1558 - Block device errors are now better reported
1559 - Many other bugfixes and small improvements
1565 *(Released Mon, 26 Jan 2009)*
1567 - Version 2 is a general rewrite of the code and therefore the
1568 differences are too many to list, see the design document for 2.0 in
1569 the ``doc/`` subdirectory for more details
1570 - In this beta version there is not yet a migration path from 1.2 (there
1571 will be one in the final 2.0 release)
1572 - A few significant changes are:
1574 - all commands are executed by a daemon (``ganeti-masterd``) and the
1575 various ``gnt-*`` commands are just front-ends to it
1576 - all the commands are entered into, and executed from a job queue,
1577 see the ``gnt-job(8)`` manpage
1578 - the RAPI daemon supports read-write operations, secured by basic
1579 HTTP authentication on top of HTTPS
1580 - DRBD version 0.7 support has been removed, DRBD 8 is the only
1581 supported version (when migrating from Ganeti 1.2 to 2.0, you need
1582 to migrate to DRBD 8 first while still running Ganeti 1.2)
1583 - DRBD devices are using statically allocated minor numbers, which
1584 will be assigned to existing instances during the migration process
1585 - there is support for both Xen PVM and Xen HVM instances running on
1587 - KVM virtualization is supported too
1588 - file-based storage has been implemented, which means that it is
1589 possible to run the cluster without LVM and DRBD storage, for
1590 example using a shared filesystem exported from shared storage (and
1591 still have live migration)
1597 *(Released Tue, 13 Jan 2009)*
1599 - Change the default reboot type in ``gnt-instance reboot`` to "hard"
1600 - Reuse the old instance mac address by default on instance import, if
1601 the instance name is the same.
1602 - Handle situations in which the node info rpc returns incomplete
1604 - Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
1605 - Improved version of batcher:
1607 - state file support
1608 - instance mac address support
1609 - support for HVM clusters/instances
1611 - Add an option to show the number of cpu sockets and nodes in
1613 - Support OSes that handle more than one version of the OS api (but do
1614 not change the current API in any other way)
1615 - Fix ``gnt-node migrate``
1616 - ``gnt-debug`` man page
1617 - Fixes various more typos and small issues
1618 - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
1624 *(Released Wed, 24 Sep 2008)*
1626 - new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
1627 type of disk exported to fully virtualized instances.
1628 - provide access to the serial console of HVM instances
1629 - instance auto_balance flag, set by default. If turned off it will
1630 avoid warnings on cluster verify if there is not enough memory to fail
1631 over an instance. in the future it will prevent automatically failing
1632 it over when we will support that.
1633 - batcher tool for instance creation, see ``tools/README.batcher``
1634 - ``gnt-instance reinstall --select-os`` to interactively select a new
1635 operating system when reinstalling an instance.
1636 - when changing the memory amount on instance modify a check has been
1637 added that the instance will be able to start. also warnings are
1638 emitted if the instance will not be able to fail over, if auto_balance
1640 - documentation fixes
1641 - sync fields between ``gnt-instance list/modify/add/import``
1642 - fix a race condition in drbd when the sync speed was set after giving
1643 the device a remote peer.
1649 *(Released Tue, 22 Jul 2008)*
1651 - note: the allowed size and number of tags per object were reduced
1652 - fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
1653 - fixed twisted 8.x compatibility
1654 - fixed ``gnt-instance replace-disks`` with iallocator
1655 - add TCP keepalives on twisted connections to detect restarted nodes
1656 - disk increase support, see ``gnt-instance grow-disk``
1657 - implement bulk node/instance query for RAPI
1658 - add tags in node/instance listing (optional)
1659 - experimental migration (and live migration) support, read the man page
1660 for ``gnt-instance migrate``
1661 - the ``ganeti-watcher`` logs are now timestamped, and the watcher also
1662 has some small improvements in handling its state file
1668 *(Released Fri, 13 Jun 2008)*
1670 - Experimental readonly, REST-based remote API implementation;
1671 automatically started on master node, TCP port 5080, if enabled by
1672 ``--enable-rapi`` parameter to configure script.
1673 - Instance allocator support. Add and import instance accept a
1674 ``--iallocator`` parameter, and call that instance allocator to decide
1675 which node to use for the instance. The iallocator document describes
1676 what's expected from an allocator script.
1677 - ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
1678 ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
1679 node is lost there is still enough memory to fail over the instances
1681 - ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
1682 ``gnt-cluster verify``, to check for site-specific compliance. All the
1683 hooks will run, and their output, if any, will be displayed. Any
1684 failing hook will make the verification return an error value.
1685 - ``gnt-cluster verify`` now checks that its peers are reachable on the
1686 primary and secondary interfaces
1687 - ``gnt-node add`` now supports the ``--readd`` option, to readd a node
1688 that is still declared as part of the cluster and has failed.
1689 - ``gnt-* list`` commands now accept a new ``-o +field`` way of
1690 specifying output fields, that just adds the chosen fields to the
1692 - ``gnt-backup`` now has a new ``remove`` command to delete an existing
1693 export from the filesystem.
1694 - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
1695 have been added. Using them you can enable/disable acpi and pae
1696 support, and specify a path for a cd image to be exported to the
1697 instance. These parameters as the name suggest only work on HVM
1699 - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
1700 PAE support will be set to the previously hardcoded values, but the
1701 (previously hardcoded) path to the CDROM ISO image will be unset and
1702 if required, needs to be set manually with ``gnt-instance modify``
1704 - The address to which an instance's VNC console is bound is now
1705 selectable per-instance, rather than being cluster wide. Of course
1706 this only applies to instances controlled via VNC, so currently just
1707 applies to HVM clusters.
1713 *(Released Mon, 18 Feb 2008)*
1715 - more tweaks to the disk activation code (especially helpful for DRBD)
1716 - change the default ``gnt-instance list`` output format, now there is
1717 one combined status field (see the manpage for the exact values this
1719 - some more fixes for the mac export to hooks change
1720 - make Ganeti not break with DRBD 8.2.x (which changed the version
1721 format in ``/proc/drbd``) (issue 24)
1722 - add an upgrade tool from "remote_raid1" disk template to "drbd" disk
1723 template, allowing migration from DRBD0.7+MD to DRBD8
1729 *(Released Wed, 30 Jan 2008)*
1731 - fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
1733 - add command aliases infrastructure and a few aliases
1734 - allow listing of VCPUs in the ``gnt-instance list`` and improve the
1735 man pages and the ``--help`` option of ``gnt-node
1736 list``/``gnt-instance list``
1737 - fix ``gnt-backup list`` with down nodes (issue 21)
1738 - change the tools location (move from $pkgdatadir to $pkglibdir/tools)
1739 - fix the dist archive and add a check for including svn/git files in
1741 - some developer-related changes: improve the burnin and the QA suite,
1742 add an upload script for testing during development
1748 *(Released Wed, 16 Jan 2008)*
1750 - experimental HVM support, read the install document, section
1751 "Initializing the cluster"
1752 - allow for the PVM hypervisor per-instance kernel and initrd paths
1753 - add a new command ``gnt-cluster verify-disks`` which uses a new
1754 algorithm to improve the reconnection of the DRBD pairs if the device
1755 on the secondary node has gone away
1756 - make logical volume code auto-activate LVs at disk activation time
1757 - slightly improve the speed of activating disks
1758 - allow specification of the MAC address at instance creation time, and
1759 changing it later via ``gnt-instance modify``
1760 - fix handling of external commands that generate lots of output on
1762 - update documentation with regard to minimum version of DRBD8 supported
1768 *(Released Tue, 4 Dec 2007)*
1770 - Log the ``xm create`` output to the node daemon log on failure (to
1771 help diagnosing the error)
1772 - In debug mode, log all external commands output if failed to the logs
1773 - Change parsing of lvm commands to ignore stderr
1779 *(Released Wed, 28 Nov 2007)*
1781 - Another round of updates to the DRBD 8 code to deal with more failures
1782 in the replace secondary node operation
1783 - Some more logging of failures in disk operations (lvm, drbd)
1784 - A few documentation updates
1791 *(Released Tue, 13 Nov 2007)*
1793 - Change configuration file format from Python's Pickle to JSON.
1794 Upgrading is possible using the cfgupgrade utility.
1795 - Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
1796 faster replace disks and is more stable (DRBD 8 has many improvements
1797 compared to DRBD 0.7)
1798 - Added command line tags support (see man pages for ``gnt-instance``,
1799 ``gnt-node``, ``gnt-cluster``)
1800 - Added instance rename support
1801 - Added multi-instance startup/shutdown
1802 - Added cluster rename support
1803 - Added ``gnt-node evacuate`` to simplify some node operations
1804 - Added instance reboot operation that can speedup reboot as compared to
1806 - Soften the requirement that hostnames are in FQDN format
1807 - The ``ganeti-watcher`` now activates drbd pairs after secondary node
1809 - Removed dependency on debian's patched fping that uses the
1810 non-standard ``-S`` option
1811 - Now the OS definitions are searched for in multiple, configurable
1812 paths (easier for distros to package)
1813 - Some changes to the hooks infrastructure (especially the new
1814 post-configuration update hook)
1815 - Other small bugfixes
1817 .. vim: set textwidth=72 syntax=rst :