7 *(Released Thu, 17 Jun 2010)*
9 - Added tool (``move-instance``) and infrastructure to move instances
10 between separate clusters (see :doc:`separate documentation
11 <move-instance>` and :doc:`design document <design-2.2>`)
12 - Added per-request RPC timeout
13 - RAPI now requires a Content-Type header for requests with a body (e.g.
14 ``PUT`` or ``POST``) which must be set to ``application/json`` (see
15 RFC2616 (HTTP/1.1), section 7.2.1)
16 - ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not
18 - Implemented initial support for running Ganeti daemons as separate
19 users, see configure-time flags ``--with-user-prefix`` and
20 ``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this
22 - Instances can be removed after export (``gnt-backup export
24 - Self-signed certificates generated by Ganeti now use a 2048 bit RSA
25 key (instead of 1024 bit)
26 - Added new cluster configuration file for cluster domain secret
27 - Import/export now use SSL instead of SSH
28 - Added support for showing estimated time when exporting an instance,
29 see the ``ganeti-os-interface(7)`` manpage and look for
36 *(Released Fri, 18 Jun 2010)*
38 A small bugfix release:
40 - Fix live migration of KVM instances started with older Ganeti
41 versions which had fewer hypervisor parameters
42 - Fix gnt-instance grow-disk on down instances
43 - Fix an error-reporting bug during instance migration
44 - Better checking of the ``--net`` and ``--disk`` values, to avoid
45 silently ignoring broken ones
46 - Fix an RPC error reporting bug affecting, for example, RAPI client
48 - Fix bug triggered by different API version os-es on different nodes
49 - Fix a bug in instance startup with custom hvparams: OS level
50 parameters would fail to be applied.
51 - Fix the RAPI client under Python 2.6 (but more work is needed to
52 make it work completely well with OpenSSL)
53 - Fix handling of errors when resolving names from DNS
59 *(Released Thu, 3 Jun 2010)*
61 A medium sized development cycle. Some new features, and some
62 fixes/small improvements/cleanups.
67 The node deamon now tries to mlock itself into memory, unless the
68 ``--no-mlock`` flag is passed. It also doesn't fail if it can't write
69 its logs, and falls back to console logging. This allows emergency
70 features such as ``gnt-node powercycle`` to work even in the event of a
71 broken node disk (tested offlining the disk hosting the node's
72 filesystem and dropping its memory caches; don't try this at home)
74 KVM: add vhost-net acceleration support. It can be tested with a new
75 enough version of the kernel and of qemu-kvm.
77 KVM: Add instance chrooting feature. If you use privilege dropping for
78 your VMs you can also now force them to chroot to an empty directory,
79 before starting the emulated guest.
81 KVM: Add maximum migration bandwith and maximum downtime tweaking
82 support (requires a new-enough version of qemu-kvm).
84 Cluster verify will now warn if the master node doesn't have the master
87 Add a new (incompatible) instance creation request format to RAPI which
88 supports all parameters (previously only a subset was supported, and it
89 wasn't possible to extend the old format to accomodate all the new
90 features. The old format is still supported, and a client can check for
91 this feature, before using it, by checking for its presence in the
92 ``features`` RAPI resource.
94 Now with ancient latin support. Try it passing the ``--roman`` option to
95 ``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list``
96 (requires the python-roman module to be installed, in order to work).
101 As usual many internal code refactorings, documentation updates, and
104 - Lots of improvements and cleanups to the experimental Remote API
105 (RAPI) client library.
106 - A new unit test suite for the core daemon libraries.
107 - A fix to creating missing directories makes sure the umask is not
108 applied anymore. This enforces the same directory permissions
110 - Better handling terminating daemons with ctrl+c (used when running
111 them in debugging mode).
112 - Fix a race condition in live migrating a KVM instance, when stat()
113 on the old proc status file returned EINVAL, which is an unexpected
115 - Fixed manpage checking with newer man and utf-8 charachters. But now
116 you need the en_US.UTF-8 locale enabled to build Ganeti from git.
122 *(Released Fri, 7 May 2010)*
124 Fix a bug which prevented untagged KVM instances from starting.
130 *(Released Fri, 7 May 2010)*
132 Another release with a long development cycle, during which many
133 different features were added.
138 The KVM hypervisor now can run the individual instances as non-root, to
139 reduce the impact of a VM being hijacked due to bugs in the
140 hypervisor. It is possible to run all instances as a single (non-root)
141 user, to manually specify a user for each instance, or to dynamically
142 allocate a user out of a cluster-wide pool to each instance, with the
143 guarantee that no two instances will run under the same user ID on any
146 An experimental RAPI client library, that can be used standalone
147 (without the other Ganeti libraries), is provided in the source tree as
148 ``lib/rapi/client.py``. Note this client might change its interface in
149 the future, as we iterate on its capabilities.
151 A new command, ``gnt-cluster renew-crypto`` has been added to easily
152 replace the cluster's certificates and crypto keys. This might help in
153 case they have been compromised, or have simply expired.
155 A new disk option for instance creation has been added that allows one
156 to "adopt" currently existing logical volumes, with data
157 preservation. This should allow easier migration to Ganeti from
158 unmanaged (or managed via other software) instances.
160 Another disk improvement is the possibility to convert between redundant
161 (DRBD) and plain (LVM) disk configuration for an instance. This should
162 allow better scalability (starting with one node and growing the
163 cluster, or shrinking a two-node cluster to one node).
165 A new feature that could help with automated node failovers has been
166 implemented: if a node sees itself as offline (by querying the master
167 candidates), it will try to shutdown (hard) all instances and any active
168 DRBD devices. This reduces the risk of duplicate instances if an
169 external script automatically failovers the instances on such nodes. To
170 enable this, the cluster parameter ``maintain_node_health`` should be
171 enabled; in the future this option (per the name) will enable other
172 automatic maintenance features.
174 Instance export/import now will reuse the original instance
175 specifications for all parameters; that means exporting an instance,
176 deleting it and the importing it back should give an almost identical
177 instance. Note that the default import behaviour has changed from
178 before, where it created only one NIC; now it recreates the original
181 Cluster verify has added a few new checks: SSL certificates validity,
182 /etc/hosts consistency across the cluster, etc.
187 As usual, many internal changes were done, documentation fixes,
190 - Fixed cluster initialization with disabled cluster storage (regression
192 - File-based storage supports growing the disks
193 - Fixed behaviour of node role changes
194 - Fixed cluster verify for some corner cases, plus a general rewrite of
195 cluster verify to allow future extension with more checks
196 - Fixed log spamming by watcher and node daemon (regression introduced
198 - Fixed possible validation issues when changing the list of enabled
200 - Fixed cleanup of /etc/hosts during node removal
201 - Fixed RAPI response for invalid methods
202 - Fixed bug with hashed passwords in ``ganeti-rapi`` daemon
203 - Multiple small improvements to the KVM hypervisor (VNC usage, booting
204 from ide disks, etc.)
205 - Allow OS changes without re-installation (to record a changed OS
206 outside of Ganeti, or to allow OS renames)
207 - Allow instance creation without OS installation (useful for example if
208 the OS will be installed manually, or restored from a backup not in
210 - Implemented option to make cluster ``copyfile`` use the replication
212 - Added list of enabled hypervisors to ssconf (possibly useful for
214 - Added a new tool (``tools/cfgupgrade12``) that allows upgrading from
216 - A partial form of node re-IP is possible via node readd, which now
217 allows changed node primary IP
218 - Command line utilities now show an informational message if the job is
220 - The logs of the master daemon now show the PID/UID/GID of the
227 *(Released Fri, 12 Mar 2010)*
229 During the 2.1.0 long release candidate cycle, a lot of improvements and
230 changes have accumulated with were released later as 2.1.1.
235 The node evacuate command (``gnt-node evacuate``) was significantly
236 rewritten, and as such the IAllocator protocol was changed - a new
237 request type has been added. This unfortunate change during a stable
238 series is designed to improve performance of node evacuations; on
239 clusters with more than about five nodes and which are well-balanced,
240 evacuation should proceed in parallel for all instances of the node
241 being evacuated. As such, any existing IAllocator scripts need to be
242 updated, otherwise the above command will fail due to the unknown
243 request. The provided "dumb" allocator has not been updated; but the
244 ganeti-htools package supports the new protocol since version 0.2.4.
246 Another important change is increased validation of node and instance
247 names. This might create problems in special cases, if invalid host
248 names are being used.
250 Also, a new layer of hypervisor parameters has been added, that sits at
251 OS level between the cluster defaults and the instance ones. This allows
252 customisation of virtualization parameters depending on the installed
253 OS. For example instances with OS 'X' may have a different KVM kernel
254 (or any other parameter) than the cluster defaults. This is intended to
255 help managing a multiple OSes on the same cluster, without manual
256 modification of each instance's parameters.
258 A tool for merging clusters, ``cluster-merge``, has been added in the
264 - Improved the int/float conversions that should make the code more
265 robust in face of errors from the node daemons
266 - Fixed the remove node code in case of internal configuration errors
267 - Fixed the node daemon behaviour in face of inconsistent queue
268 directory (e.g. read-only file-system where we can't open the files
270 - Fixed the behaviour of gnt-node modify for master candidate demotion;
271 now it either aborts cleanly or, if given the new “auto_promote”
272 parameter, will automatically promote other nodes as needed
273 - Fixed compatibility with (unreleased yet) Python 2.6.5 that would
274 completely prevent Ganeti from working
275 - Fixed bug for instance export when not all disks were successfully
277 - Fixed behaviour of node add when the new node is slow in starting up
279 - Fixed handling of signals in the LUXI client, which should improve
280 behaviour of command-line scripts
281 - Added checks for invalid node/instance names in the configuration (now
282 flagged during cluster verify)
283 - Fixed watcher behaviour for disk activation errors
284 - Fixed two potentially endless loops in http library, which led to the
285 RAPI daemon hanging and consuming 100% CPU in some cases
286 - Fixed bug in RAPI daemon related to hashed passwords
287 - Fixed bug for unintended qemu-level bridging of multi-NIC KVM
289 - Enhanced compatibility with non-Debian OSes, but not using absolute
290 path in some commands and allowing customisation of the ssh
291 configuration directory
292 - Fixed possible future issue with new Python versions by abiding to the
293 proper use of ``__slots__`` attribute on classes
294 - Added checks that should prevent directory traversal attacks
295 - Many documentation fixes based on feedback from users
300 - Added an “early_release” more for instance replace disks and node
301 evacuate, where we release locks earlier and thus allow higher
302 parallelism within the cluster
303 - Added watcher hooks, intended to allow the watcher to restart other
304 daemons (e.g. from the ganeti-nbma project), but they can be used of
305 course for any other purpose
306 - Added a compile-time disable for DRBD barriers, to increase
307 performance if the administrator trusts the power supply or the
308 storage system to not lose writes
309 - Added the option of using syslog for logging instead of, or in
310 addition to, Ganeti's own log files
311 - Removed boot restriction for paravirtual NICs for KVM, recent versions
312 can indeed boot from a paravirtual NIC
313 - Added a generic debug level for many operations; while this is not
314 used widely yet, it allows one to pass the debug value all the way to
316 - Enhanced the hooks environment for instance moves (failovers,
317 migrations) where the primary/secondary nodes changed during the
318 operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars
319 - Enhanced data validations for many user-supplied values; one important
320 item is the restrictions imposed on instance and node names, which
321 might reject some (invalid) host names
322 - Add a configure-time option to disable file-based storage, if it's not
323 needed; this allows greater security separation between the master
324 node and the other nodes from the point of view of the inter-node RPC
326 - Added user notification in interactive tools if job is waiting in the
327 job queue or trying to acquire locks
328 - Added log messages when a job is waiting for locks
329 - Added filtering by node tags in instance operations which admit
330 multiple instances (start, stop, reboot, reinstall)
331 - Added a new tool for cluster mergers, ``cluster-merge``
332 - Parameters from command line which are of the form ``a=b,c=d`` can now
333 use backslash escapes to pass in values which contain commas,
334 e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value
336 - For KVM, the instance name is the first parameter passed to KVM, so
337 that it's more visible in the process list
343 *(Released Tue, 2 Mar 2010)*
345 Ganeti 2.1 brings many improvements with it. Major changes:
347 - Added infrastructure to ease automated disk repairs
348 - Added new daemon to export configuration data in a cheaper way than
350 - Instance NICs can now be routed instead of being associated with a
352 - Improved job locking logic to reduce impact of jobs acquiring multiple
353 locks waiting for other long-running jobs
355 In-depth implementation details can be found in the Ganeti 2.1 design
361 - Added chroot hypervisor
362 - Added more options to xen-hvm hypervisor (``kernel_path`` and
364 - Added more options to xen-pvm hypervisor (``use_bootloader``,
365 ``bootloader_path`` and ``bootloader_args``)
366 - Added the ``use_localtime`` option for the xen-hvm and kvm
367 hypervisors, and the default value for this has changed to false (in
368 2.0 xen-hvm always enabled it)
369 - Added luxi call to submit multiple jobs in one go
370 - Added cluster initialization option to not modify ``/etc/hosts``
372 - Added network interface parameters
373 - Added dry run mode to some LUs
374 - Added RAPI resources:
376 - ``/2/instances/[instance_name]/info``
377 - ``/2/instances/[instance_name]/replace-disks``
378 - ``/2/nodes/[node_name]/evacuate``
379 - ``/2/nodes/[node_name]/migrate``
380 - ``/2/nodes/[node_name]/role``
381 - ``/2/nodes/[node_name]/storage``
382 - ``/2/nodes/[node_name]/storage/modify``
383 - ``/2/nodes/[node_name]/storage/repair``
385 - Added OpCodes to evacuate or migrate all instances on a node
386 - Added new command to list storage elements on nodes (``gnt-node
387 list-storage``) and modify them (``gnt-node modify-storage``)
388 - Added new ssconf files with master candidate IP address
389 (``ssconf_master_candidates_ips``), node primary IP address
390 (``ssconf_node_primary_ips``) and node secondary IP address
391 (``ssconf_node_secondary_ips``)
392 - Added ``ganeti-confd`` and a client library to query the Ganeti
393 configuration via UDP
394 - Added ability to run hooks after cluster initialization and before
396 - Added automatic mode for disk replace (``gnt-instance replace-disks
398 - Added ``gnt-instance recreate-disks`` to re-create (empty) disks
399 after catastrophic data-loss
400 - Added ``gnt-node repair-storage`` command to repair damaged LVM volume
402 - Added ``gnt-instance move`` command to move instances
403 - Added ``gnt-cluster watcher`` command to control watcher
404 - Added ``gnt-node powercycle`` command to powercycle nodes
405 - Added new job status field ``lock_status``
406 - Added parseable error codes to cluster verification (``gnt-cluster
407 verify --error-codes``) and made output less verbose (use
408 ``--verbose`` to restore previous behaviour)
409 - Added UUIDs to the main config entities (cluster, nodes, instances)
410 - Added support for OS variants
411 - Added support for hashed passwords in the Ganeti remote API users file
413 - Added option to specify maximum timeout on instance shutdown
414 - Added ``--no-ssh-init`` option to ``gnt-cluster init``
415 - Added new helper script to start and stop Ganeti daemons
416 (``daemon-util``), with the intent to reduce the work necessary to
417 adjust Ganeti for non-Debian distributions and to start/stop daemons
419 - Added more unittests
420 - Fixed critical bug in ganeti-masterd startup
421 - Removed the configure-time ``kvm-migration-port`` parameter, this is
422 now customisable at the cluster level for both the KVM and Xen
423 hypervisors using the new ``migration_port`` parameter
424 - Pass ``INSTANCE_REINSTALL`` variable to OS installation script when
425 reinstalling an instance
426 - Allowed ``@`` in tag names
427 - Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation
428 - Many documentation updates
429 - Distribute hypervisor files on ``gnt-cluster redist-conf``
430 - ``gnt-instance reinstall`` can now reinstall multiple instances
431 - Updated many command line parameters
432 - Introduced new OS API version 15
433 - No longer support a default hypervisor
434 - Treat virtual LVs as inexistent
435 - Improved job locking logic to reduce lock contention
436 - Match instance and node names case insensitively
437 - Reimplemented bash completion script to be more complete
444 *(Released Thu, 4 Feb 2010)*
446 - Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105)
447 - Fix a string formatting bug
448 - Improve safety of the code in some error paths
449 - Improve data validation in the master of values returned from nodes
455 *(Released Thu, 17 Dec 2009)*
457 - Fix security issue due to missing validation of iallocator names; this
458 allows local and remote execution of arbitrary executables
459 - Fix failure of gnt-node list during instance removal
460 - Ship the RAPI documentation in the archive
466 *(Released Wed, 30 Sep 2009)*
468 - Fixed many wrong messages
469 - Fixed a few bugs related to the locking library
470 - Fixed MAC checking at instance creation time
471 - Fixed a DRBD parsing bug related to gaps in /proc/drbd
472 - Fixed a few issues related to signal handling in both daemons and
474 - Fixed the example startup script provided
475 - Fixed insserv dependencies in the example startup script (patch from
477 - Fixed handling of drained nodes in the iallocator framework
478 - Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug
480 - Fixed error related to invalid job IDs in job polling
481 - Fixed job/opcode persistence on unclean master shutdown
482 - Fixed handling of partial job processing after unclean master
484 - Fixed error reporting from LUs, previously all errors were converted
485 into execution errors
486 - Fixed error reporting from burnin
487 - Decreased significantly the memory usage of the job queue
488 - Optimised slightly multi-job submission
489 - Optimised slightly opcode loading
490 - Backported the multi-job submit framework from the development
491 branch; multi-instance start and stop should be faster
492 - Added script to clean archived jobs after 21 days; this will reduce
493 the size of the queue directory
494 - Added some extra checks in disk size tracking
495 - Added an example ethers hook script
496 - Added a cluster parameter that prevents Ganeti from modifying of
498 - Added more node information to RAPI responses
499 - Added a ``gnt-job watch`` command that allows following the ouput of a
501 - Added a bind-address option to ganeti-rapi
502 - Added more checks to the configuration verify
503 - Enhanced the burnin script such that some operations can be retried
505 - Converted instance reinstall to multi-instance model
511 *(Released Fri, 7 Aug 2009)*
513 - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command
514 to allow using the pre-2.0.2 behaviour in activation, if any existing
515 instances have mismatched disk sizes in the configuration
516 - Added ``gnt-cluster repair-disk-sizes`` command to check and update
517 any configuration mismatches for disk sizes
518 - Added ``gnt-master cluste-failover --no-voting`` to allow master
519 failover to work on two-node clusters
520 - Fixed the ``--net`` option of ``gnt-backup import``, which was
522 - Fixed detection of OS script errors in ``gnt-backup export``
523 - Fixed exit code of ``gnt-backup export``
529 *(Released Fri, 17 Jul 2009)*
531 - Added experimental support for stripped logical volumes; this should
532 enhance performance but comes with a higher complexity in the block
533 device handling; stripping is only enabled when passing
534 ``--with-lvm-stripecount=N`` to ``configure``, but codepaths are
535 affected even in the non-stripped mode
536 - Improved resiliency against transient failures at the end of DRBD
537 resyncs, and in general of DRBD resync checks
538 - Fixed a couple of issues with exports and snapshot errors
539 - Fixed a couple of issues in instance listing
540 - Added display of the disk size in ``gnt-instance info``
541 - Fixed checking for valid OSes in instance creation
542 - Fixed handling of the "vcpus" parameter in instance listing and in
543 general of invalid parameters
544 - Fixed http server library, and thus RAPI, to handle invalid
545 username/password combinations correctly; this means that now they
546 report unauthorized for queries too, not only for modifications,
547 allowing earlier detect of configuration problems
548 - Added a new "role" node list field, equivalent to the master/master
549 candidate/drained/offline flags combinations
550 - Fixed cluster modify and changes of candidate pool size
551 - Fixed cluster verify error messages for wrong files on regular nodes
552 - Fixed a couple of issues with node demotion from master candidate role
553 - Fixed node readd issues
554 - Added non-interactive mode for ``ganeti-masterd --no-voting`` startup
555 - Added a new ``--no-voting`` option for masterfailover to fix failover
556 on two-nodes clusters when the former master node is unreachable
557 - Added instance reinstall over RAPI
563 *(Released Tue, 16 Jun 2009)*
565 - added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will
566 allow re-adding the start in single-user option (regression from 1.2)
567 - the watcher writes the instance status to a file, to allow monitoring
568 to report the instance status (from the master) based on cached
569 results of the watcher's queries; while this can get stale if the
570 watcher is being locked due to other work on the cluster, this is
572 - the watcher now also restarts the node daemon and the rapi daemon if
574 - fixed the watcher to handle full and drained queue cases
575 - hooks export more instance data in the environment, which helps if
576 hook scripts need to take action based on the instance's properties
577 (no longer need to query back into ganeti)
578 - instance failovers when the instance is stopped do not check for free
579 RAM, so that failing over a stopped instance is possible in low memory
581 - rapi uses queries for tags instead of jobs (for less job traffic), and
582 for cluster tags it won't talk to masterd at all but read them from
584 - a couple of error handling fixes in RAPI
585 - drbd handling: improved the error handling of inconsistent disks after
586 resync to reduce the frequency of "there are some degraded disks for
587 this instance" messages
588 - fixed a bug in live migration when DRBD doesn't want to reconnect (the
589 error handling path called a wrong function name)
595 *(Released Wed, 27 May 2009)*
597 - no changes from rc5
600 Version 2.0 release candidate 5
601 -------------------------------
603 *(Released Wed, 20 May 2009)*
605 - fix a couple of bugs (validation, argument checks)
606 - fix ``gnt-cluster getmaster`` on non-master nodes (regression)
607 - some small improvements to RAPI and IAllocator
608 - make watcher automatically start the master daemon if down
611 Version 2.0 release candidate 4
612 -------------------------------
614 *(Released Mon, 27 Apr 2009)*
616 - change the OS list to not require locks; this helps with big clusters
617 - fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the
618 volume group is broken
619 - ``gnt-instance info``, without any arguments, doesn't run for all
620 instances anymore; either pass ``--all`` or pass the desired
621 instances; this helps against mistakes on big clusters where listing
622 the information for all instances takes a long time
623 - miscellaneous doc and man pages fixes
626 Version 2.0 release candidate 3
627 -------------------------------
629 *(Released Wed, 8 Apr 2009)*
631 - Change the internal locking model of some ``gnt-node`` commands, in
632 order to reduce contention (and blocking of master daemon) when
633 batching many creation/reinstall jobs
634 - Fixes to Xen soft reboot
635 - No longer build documentation at build time, instead distribute it in
636 the archive, in order to reduce the need for the whole docbook/rst
640 Version 2.0 release candidate 2
641 -------------------------------
643 *(Released Fri, 27 Mar 2009)*
645 - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0
646 - Fix watcher startup sequence, improves the behaviour of busy clusters
647 - Some other fixes in ``gnt-cluster verify``, ``gnt-instance
648 replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC
649 bind address and other places
650 - Some documentation fixes and updates
653 Version 2.0 release candidate 1
654 -------------------------------
656 *(Released Mon, 2 Mar 2009)*
658 - More documentation updates, now all docs should be more-or-less
660 - A couple of small fixes (mixed hypervisor clusters, offline nodes,
662 - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM
664 - Fix an issue related to $libdir/run/ganeti and cluster creation
670 *(Released Thu, 19 Feb 2009)*
672 - Xen PVM and KVM have switched the default value for the instance root
673 disk to the first partition on the first drive, instead of the whole
674 drive; this means that the OS installation scripts must be changed
676 - Man pages have been updated
677 - RAPI has been switched by default to HTTPS, and the exported functions
678 should all work correctly
679 - RAPI v1 has been removed
680 - Many improvements to the KVM hypervisor
681 - Block device errors are now better reported
682 - Many other bugfixes and small improvements
688 *(Released Mon, 26 Jan 2009)*
690 - Version 2 is a general rewrite of the code and therefore the
691 differences are too many to list, see the design document for 2.0 in
692 the ``doc/`` subdirectory for more details
693 - In this beta version there is not yet a migration path from 1.2 (there
694 will be one in the final 2.0 release)
695 - A few significant changes are:
697 - all commands are executed by a daemon (``ganeti-masterd``) and the
698 various ``gnt-*`` commands are just front-ends to it
699 - all the commands are entered into, and executed from a job queue,
700 see the ``gnt-job(8)`` manpage
701 - the RAPI daemon supports read-write operations, secured by basic
702 HTTP authentication on top of HTTPS
703 - DRBD version 0.7 support has been removed, DRBD 8 is the only
704 supported version (when migrating from Ganeti 1.2 to 2.0, you need
705 to migrate to DRBD 8 first while still running Ganeti 1.2)
706 - DRBD devices are using statically allocated minor numbers, which
707 will be assigned to existing instances during the migration process
708 - there is support for both Xen PVM and Xen HVM instances running on
710 - KVM virtualization is supported too
711 - file-based storage has been implemented, which means that it is
712 possible to run the cluster without LVM and DRBD storage, for
713 example using a shared filesystem exported from shared storage (and
714 still have live migration)
720 *(Released Tue, 13 Jan 2009)*
722 - Change the default reboot type in ``gnt-instance reboot`` to "hard"
723 - Reuse the old instance mac address by default on instance import, if
724 the instance name is the same.
725 - Handle situations in which the node info rpc returns incomplete
727 - Add checks for tcp/udp ports collisions in ``gnt-cluster verify``
728 - Improved version of batcher:
731 - instance mac address support
732 - support for HVM clusters/instances
734 - Add an option to show the number of cpu sockets and nodes in
736 - Support OSes that handle more than one version of the OS api (but do
737 not change the current API in any other way)
738 - Fix ``gnt-node migrate``
739 - ``gnt-debug`` man page
740 - Fixes various more typos and small issues
741 - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
747 *(Released Wed, 24 Sep 2008)*
749 - new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the
750 type of disk exported to fully virtualized instances.
751 - provide access to the serial console of HVM instances
752 - instance auto_balance flag, set by default. If turned off it will
753 avoid warnings on cluster verify if there is not enough memory to fail
754 over an instance. in the future it will prevent automatically failing
755 it over when we will support that.
756 - batcher tool for instance creation, see ``tools/README.batcher``
757 - ``gnt-instance reinstall --select-os`` to interactively select a new
758 operating system when reinstalling an instance.
759 - when changing the memory amount on instance modify a check has been
760 added that the instance will be able to start. also warnings are
761 emitted if the instance will not be able to fail over, if auto_balance
763 - documentation fixes
764 - sync fields between ``gnt-instance list/modify/add/import``
765 - fix a race condition in drbd when the sync speed was set after giving
766 the device a remote peer.
772 *(Released Tue, 22 Jul 2008)*
774 - note: the allowed size and number of tags per object were reduced
775 - fix a bug in ``gnt-cluster verify`` with inconsistent volume groups
776 - fixed twisted 8.x compatibility
777 - fixed ``gnt-instance replace-disks`` with iallocator
778 - add TCP keepalives on twisted connections to detect restarted nodes
779 - disk increase support, see ``gnt-instance grow-disk``
780 - implement bulk node/instance query for RAPI
781 - add tags in node/instance listing (optional)
782 - experimental migration (and live migration) support, read the man page
783 for ``gnt-instance migrate``
784 - the ``ganeti-watcher`` logs are now timestamped, and the watcher also
785 has some small improvements in handling its state file
791 *(Released Fri, 13 Jun 2008)*
793 - Experimental readonly, REST-based remote API implementation;
794 automatically started on master node, TCP port 5080, if enabled by
795 ``--enable-rapi`` parameter to configure script.
796 - Instance allocator support. Add and import instance accept a
797 ``--iallocator`` parameter, and call that instance allocator to decide
798 which node to use for the instance. The iallocator document describes
799 what's expected from an allocator script.
800 - ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the
801 ``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a
802 node is lost there is still enough memory to fail over the instances
804 - ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to
805 ``gnt-cluster verify``, to check for site-specific compliance. All the
806 hooks will run, and their output, if any, will be displayed. Any
807 failing hook will make the verification return an error value.
808 - ``gnt-cluster verify`` now checks that its peers are reachable on the
809 primary and secondary interfaces
810 - ``gnt-node add`` now supports the ``--readd`` option, to readd a node
811 that is still declared as part of the cluster and has failed.
812 - ``gnt-* list`` commands now accept a new ``-o +field`` way of
813 specifying output fields, that just adds the chosen fields to the
815 - ``gnt-backup`` now has a new ``remove`` command to delete an existing
816 export from the filesystem.
817 - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path
818 have been added. Using them you can enable/disable acpi and pae
819 support, and specify a path for a cd image to be exported to the
820 instance. These parameters as the name suggest only work on HVM
822 - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and
823 PAE support will be set to the previously hardcoded values, but the
824 (previously hardcoded) path to the CDROM ISO image will be unset and
825 if required, needs to be set manually with ``gnt-instance modify``
827 - The address to which an instance's VNC console is bound is now
828 selectable per-instance, rather than being cluster wide. Of course
829 this only applies to instances controlled via VNC, so currently just
830 applies to HVM clusters.
836 *(Released Mon, 18 Feb 2008)*
838 - more tweaks to the disk activation code (especially helpful for DRBD)
839 - change the default ``gnt-instance list`` output format, now there is
840 one combined status field (see the manpage for the exact values this
842 - some more fixes for the mac export to hooks change
843 - make Ganeti not break with DRBD 8.2.x (which changed the version
844 format in ``/proc/drbd``) (issue 24)
845 - add an upgrade tool from "remote_raid1" disk template to "drbd" disk
846 template, allowing migration from DRBD0.7+MD to DRBD8
852 *(Released Wed, 30 Jan 2008)*
854 - fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM
856 - add command aliases infrastructure and a few aliases
857 - allow listing of VCPUs in the ``gnt-instance list`` and improve the
858 man pages and the ``--help`` option of ``gnt-node
859 list``/``gnt-instance list``
860 - fix ``gnt-backup list`` with down nodes (issue 21)
861 - change the tools location (move from $pkgdatadir to $pkglibdir/tools)
862 - fix the dist archive and add a check for including svn/git files in
864 - some developer-related changes: improve the burnin and the QA suite,
865 add an upload script for testing during development
871 *(Released Wed, 16 Jan 2008)*
873 - experimental HVM support, read the install document, section
874 "Initializing the cluster"
875 - allow for the PVM hypervisor per-instance kernel and initrd paths
876 - add a new command ``gnt-cluster verify-disks`` which uses a new
877 algorithm to improve the reconnection of the DRBD pairs if the device
878 on the secondary node has gone away
879 - make logical volume code auto-activate LVs at disk activation time
880 - slightly improve the speed of activating disks
881 - allow specification of the MAC address at instance creation time, and
882 changing it later via ``gnt-instance modify``
883 - fix handling of external commands that generate lots of output on
885 - update documentation with regard to minimum version of DRBD8 supported
891 *(Released Tue, 4 Dec 2007)*
893 - Log the ``xm create`` output to the node daemon log on failure (to
894 help diagnosing the error)
895 - In debug mode, log all external commands output if failed to the logs
896 - Change parsing of lvm commands to ignore stderr
902 *(Released Wed, 28 Nov 2007)*
904 - Another round of updates to the DRBD 8 code to deal with more failures
905 in the replace secondary node operation
906 - Some more logging of failures in disk operations (lvm, drbd)
907 - A few documentation updates
914 *(Released Tue, 13 Nov 2007)*
916 - Change configuration file format from Python's Pickle to JSON.
917 Upgrading is possible using the cfgupgrade utility.
918 - Add support for DRBD 8.0 (new disk template ``drbd``) which allows for
919 faster replace disks and is more stable (DRBD 8 has many improvements
920 compared to DRBD 0.7)
921 - Added command line tags support (see man pages for ``gnt-instance``,
922 ``gnt-node``, ``gnt-cluster``)
923 - Added instance rename support
924 - Added multi-instance startup/shutdown
925 - Added cluster rename support
926 - Added ``gnt-node evacuate`` to simplify some node operations
927 - Added instance reboot operation that can speedup reboot as compared to
929 - Soften the requirement that hostnames are in FQDN format
930 - The ``ganeti-watcher`` now activates drbd pairs after secondary node
932 - Removed dependency on debian's patched fping that uses the
933 non-standard ``-S`` option
934 - Now the OS definitions are searched for in multiple, configurable
935 paths (easier for distros to package)
936 - Some changes to the hooks infrastructure (especially the new
937 post-configuration update hook)
938 - Other small bugfixes
940 .. vim: set textwidth=72 :