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Version 2.0.3
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  - Added “--ignore-size” to the “gnt-instance activate-disks” command
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    to allow using the pre-2.0.2 behaviour in activation, if any
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    existing instances have mismatched disk sizes in the configuration
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  - Added “gnt-cluster repair-disk-sizes” command to check and update
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    any configuration mismatches for disk sizes
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  - Added “gnt-master cluste-failover --no-voting” to allow master
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    failover to work on two-node clusters
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  - Fixed the ‘--net’ option of “gnt-backup import”, which was unusable
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  - Fixed detection of OS script errors in “gnt-backup export”
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  - Fixed exit code of “gnt-backup export”
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Version 2.0.2
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  - Added experimental support for stripped logical volumes; this should
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    enhance performance but comes with a higher complexity in the block
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    device handling; stripping is only enabled when passing
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    --with-lvm-stripecount=N to configure, but codepaths are affected
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    even in the non-stripped mode
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  - Improved resiliency against transient failures at the end of DRBD
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    resyncs, and in general of DRBD resync checks
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  - Fixed a couple of issues with exports and snapshot errors
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  - Fixed a couple of issues in instance listing
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  - Added display of the disk size in “gnt-instance info”
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  - Fixed checking for valid OSes in instance creation
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  - Fixed handling of the ‘vcpus’ parameter in instance listing and in
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    general of invalid parameters
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  - Fixed http server library, and thus RAPI, to handle invalid
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    username/password combinations correctly; this means that now they
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    report unauthorized for queries too, not only for modifications,
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    allowing earlier detect of configuration problems
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  - Added a new ‘role’ node list field, equivalent to the master/master
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    candidate/drained/offline flags combinations
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  - Fixed cluster modify and changes of candidate pool size
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  - Fixed cluster verify error messages for wrong files on regular nodes
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  - Fixed a couple of issues with node demotion from master candidate
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    role
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  - Fixed node readd issues
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  - Added non-interactive mode for “ganeti-masterd --no-voting” startup
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  - Added a new ‘--no-voting’ option for masterfailover to fix failover
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    on two-nodes clusters when the former master node is unreachable
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  - Added instance reinstall over RAPI
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Version 2.0.1
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  - added -H/-B startup parameters to gnt-instance, which will allow
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    re-adding the start in single-user option (regression from 1.2)
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  - the watcher writes the instance status to a file, to allow
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    monitoring to report the instance status (from the master) based on
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    cached results of the watcher's queries; while this can get stale if
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    the watcher is being locked due to other work on the cluster, this
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    is still an improvement
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  - the watcher now also restarts the node daemon and the rapi daemon if
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    they died
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  - fixed the watcher to handle full and drained queue cases
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  - hooks export more instance data in the environment, which helps if
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    hook scripts need to take action based on the instance's properties
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    (no longer need to query back into ganeti)
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  - instance failovers when the instance is stopped do not check for
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    free RAM, so that failing over a stopped instance is possible in low
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    memory situations
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  - rapi uses queries for tags instead of jobs (for less job traffic),
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    and for cluster tags it won't talk to masterd at all but read them
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    from ssconf
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  - a couple of error handling fixes in RAPI
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  - drbd handling: improved the error handling of inconsistent disks
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    after resync to reduce the frequency of "there are some degraded
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    disks for this instance" message
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  - fixed a bug in live migration when DRBD doesn't want to reconnect
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    (the error handling path called a wrong function name)
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Version 2.0.0 final
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  - no changes from rc5
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Version 2.0 release candidate 5
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  - fix a couple of bugs (validation, argument checks)
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  - fix gnt-cluster getmaster on non-master nodes (regression)
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  - some small improvements to RAPI and IAllocator
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  - make watcher automatically start the master daemon if down
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Version 2.0 release candidate 4
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  - change the OS list to not require locks; this helps with big
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    clusters
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  - fix gnt-cluster verify and gnt-cluster verify-disks when the volume
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    group is broken
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  - “gnt-instance info”, without any arguments, doesn't run for all
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    instances anymore; either pass ‘--all’ or pass the desired
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    instances; this helps against mistakes on big clusters where listing
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    the information for all instances takes a long time
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  - miscellaneous doc and man pages fixes
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Version 2.0 release candidate 3
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  - Change the internal locking model of some gnt-node commands, in
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    order to reduce contention (and blocking of master daemon) when
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    batching many creation/reinstall jobs
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  - Fixes to Xen soft reboot
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  - No longer build documentation at 'make' time, instead distribute it
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    in the archive, in order to reduce the need for the whole
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    docbook/rst toolchains
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Version 2.0 release candidate 2
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  - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to
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    2.0
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  - Fix watcher startup sequence, improves the behaviour of busy
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    clusters
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  - Some other fixes in cluster verify, replace-disks, gnt-instance add,
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    gnt-cluster queue, KVM VNC bind address and other places
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  - Some documentation fixes and updates
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Version 2.0 release candidate 1
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  - More documentation updates, now all docs should be more-or-less
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    up-to-date
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  - A couple of small fixes (mixed hypervisor clusters, offline nodes,
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    etc.)
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  - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen
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    PVM and KVM)
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  - Fix an issue related to $libdir/run/ganeti and cluster creation
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Version 2.0 beta 2
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  - Xen PVM and KVM have switched the default value for the instance
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    root disk to the first partition on the first drive, instead of the
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    whole drive; this means that the OS installation scripts must be
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    changed accordingly
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  - Man pages have been updated
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  - RAPI has been switched by default to HTTPS, and the exported
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    functions should all work correctly
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  - RAPI v1 has been removed
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  - Many improvements to the KVM hypervisor
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  - Block device errors are now better reported
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  - Many other bugfixes and small improvements
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Version 2.0 beta 1
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  - Version 2 is a general rewrite of the code and therefore the
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    differences are too many to list, see the design document for 2.0 in
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    the doc/ subdirectory for more details
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  - In this beta version there is not yet a migration path from 1.2
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    (there will be one in the final 2.0 release)
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  - A few significant changes are:
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    - all commands are executed by a daemon (ganeti-masterd) and the
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      various gnt-* commands are just front-ends to it
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    - all the commands are entered into, and executed from a job queue,
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      see gnt-job(8)
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    - the RAPI daemon supports read-write operations, secured by basic
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      HTTP authentication on top of HTTPS
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    - DRBD version 0.7 support has been removed, DRBD 8 is the only
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      supported version (when migrating from Ganeti 1.2 to 2.0, you need
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      to migrate to DRBD 8 first while still running Ganeti 1.2)
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    - DRBD devices are using statically allocated minor numbers, which
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      will be assigned to existing instances during the migration
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      process
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    - there is support for both Xen PVM and Xen HVM instances running on
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      the same cluster
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    - KVM virtualization is supported too
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    - file-based storage has been implemented, which means that it is
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      possible to run the cluster without LVM and DRBD storage, for
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      example using a shared filesystem exported from shared storage
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      (and still have live migration)
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Version 1.2.7
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  - Change the default reboot type in gnt-instance reboot to "hard"
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  - Reuse the old instance mac address by default on instance import,
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    if the instance name is the same.
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  - Handle situations in which the node info rpc returns incomplete results
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    (issue 46)
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  - Add checks for tcp/udp ports collisions in gnt-cluster verify
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  - Improved version of batcher:
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    - state file support
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    - instance mac address support
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    - support for HVM clusters/instances
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  - Add an option to show the number of cpu sockets and nodes in gnt-node list
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  - Support OSes that handle more than one version of the OS api
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    (but do not change the current API in any other way)
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  - Fix gnt-node migrate
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  - gnt-debug man page
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  - Fixes various more typos&small issues
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  - Increase disk resync maximum speed to 60MB/s (from 30MB/s)
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Version 1.2.6
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  - new --hvm-nic-type and --hvm-disk-type flags to control the type of disk
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    exported to fully virtualized instances.
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  - provide access to the serial console of HVM instances
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  - instance auto_balance flag, set by default. If turned off it will avoid
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    warnings on cluster verify if there is not enough memory to fail over an
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    instance. in the future it will prevent automatically failing it over when
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    we will support that.
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  - batcher tool for instance creation, see /tools/README.batcher
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  - gnt-instance reinstall --select-os to interactively select a new operating
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    system when reinstalling an instance.
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  - when changing the memory amount on instance modify a check has been added
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    that the instance will be able to start. also warnings are emitted if the
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    instance will not be able to fail over, if auto_balance is true.
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  - documentation fixes
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  - sync fields between instance list/modify/add/import
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  - fix a race condition in drbd when the sync speed was set after giving the
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    device a remote peer.
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Version 1.2.5
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  - note: the allowed size and number of tags per object were reduced
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  - fix a bug in “gnt-cluster verify” with inconsistent volume groups
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  - fixed twisted 8.x compatibility
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  - fixed gnt-instance replace-disks with iallocator
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  - add TCP keepalives on twisted connections to detect restarted nodes
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  - disk increase support, see “gnt-instance grow-disk”
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  - implement bulk node/instance query for RAPI
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  - add tags in node/instance listing (optional)
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  - experimental migration (and live migration) support, read the man
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    page for “gnt-instance migrate”
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  - the ganeti-watcher logs are now timestamped, and the watcher also
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    has some small improvements in handling its state file
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Version 1.2.4
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  - Experimental readonly, REST-based remote API implementation; automatically
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    started on master node, TCP port 5080, if enabled by --enable-rapi
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    parameter to configure script.
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  - Instance allocator support. Add and import instance accept a --iallocator
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    parameter, and call that instance allocator to decide which node to use for
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    the instance. The iallocator document describes what's expected from an
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    allocator script.
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  - gnt-cluster verify N+1 memory redundancy checks: Unless passed the
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    --no-nplus1-mem option gnt-cluster verify now checks that if a node is lost
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    there is still enough memory to fail over the instances that reside on it.
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  - gnt-cluster verify hooks: it is now possible to add post-hooks to
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    gnt-cluster verify, to check for site-specific compliance. All the hooks
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    will run, and their output, if any, will be displayed. Any failing hook
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    will make the verification return an error value.
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  - gnt-cluster verify now checks that its peers are reachable on the primary
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    and secondary interfaces
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  - gnt-node add now supports the --readd option, to readd a node that is still
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    declared as part of the cluster and has failed.
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  - gnt-* list commands now accept a new -o +field way of specifying output
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    fields, that just adds the chosen fields to the default ones.
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  - gnt-backup now has a new "remove" command to delete an existing export from
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    the filesystem.
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  - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path have
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    been added. Using them you can enable/disable acpi and pae support, and
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    specify a path for a cd image to be exported to the instance. These
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    parameters as the name suggest only work on HVM clusters.
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  - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and PAE
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    support will be set to the previously hardcoded values, but the (previously
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    hardcoded) path to the CDROM ISO image will be unset and if required, needs
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    to be set manually with gnt-instance modify after the upgrade..
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  - The address to which an instance's VNC console is bound is now selectable
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    per-instance, rather than being cluster wide. Of course this only applies
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    to instances controlled via VNC, so currently just applies to HVM clusters.
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Version 1.2.3
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  - more tweaks to the disk activation code (especially helpful for DRBD)
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  - change the default ‘gnt-instance list’ output format, now there is
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    one combined status field (see the manpage for the exact values this
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    field will have)
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  - some more fixes for the mac export to hooks change
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  - make Ganeti not break with DRBD 8.2.x (which changed the version
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    format in /proc/drbd) (issue 24)
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  - add an upgrade tool from ‘remote_raid1’ disk template to ‘drbd’ disk
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    template, allowing migration from DRBD0.7+MD to DRBD8
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Version 1.2.2
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  - fix ‘gnt-instance modify’ breakage introduced in 1.2.1 with the HVM
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    support (issue 23)
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  - add command aliases infrastructure and a few aliases
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  - allow listing of VCPUs in the gnt-instance list and improve the man
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    pages and the --help option of gnt-node/gnt-instance list
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  - fix gnt-backup list with down nodes (issue 21)
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  - change the tools location (move from $pkgdatadir to
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    $pkglibdir/tools)
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  - fix the dist archive and add a check for including svn/git files in
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    the future
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  - some developer-related changes: improve the burnin and the QA
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    suite, add an upload script for testing during development
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Version 1.2.1
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  - experimental HVM support, read the install document, section
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    "Initializing the cluster"
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  - allow for the PVM hypervisor per-instance kernel and initrd paths
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  - add a new command ‘gnt-cluster verify-disks’ which uses a new
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    algorithm to improve the reconnection of the DRBD pairs if the
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    device on the secondary node has gone away
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  - make logical volume code auto-activate LVs at disk activation time
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  - slightly improve the speed of activating disks
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  - allow specification of the MAC address at instance creation time,
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    and changing it later via ‘gnt-instance modify’
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  - fix handling of external commands that generate lots of output on
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    stderr
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  - update documentation with regard to minimum version of DRBD8
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    supported
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Version 1.2.0
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  - Log the ‘xm create’ output to the node daemon log on failure (to
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    help diagnosing the error)
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  - In debug mode, log all external commands output if failed to the
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    logs
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  - Change parsing of lvm commands to ignore stderr
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Version 1.2b3
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  - Another round of updates to the DRBD 8 code to deal with more
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    failures in the replace secondary node operation
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  - Some more logging of failures in disk operations (lvm, drbd)
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  - A few documentation updates
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  - QA updates
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Version 1.2b2
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  - Change configuration file format from Python's Pickle to JSON.
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    Upgrading is possible using the cfgupgrade utility.
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  - Add support for DRBD 8.0 (new disk template `drbd`) which allows for
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    faster replace disks and is more stable (DRBD 8 has many
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    improvements compared to DRBD 0.7)
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  - Added command line tags support (see man pages for gnt-instance,
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    gnt-node, gnt-cluster)
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  - Added instance rename support
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  - Added multi-instance startup/shutdown
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  - Added cluster rename support
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  - Added `gnt-node evacuate` to simplify some node operations
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  - Added instance reboot operation that can speedup reboot as compared
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    to stop and start
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  - Soften the requirement that hostnames are in FQDN format
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  - The ganeti-watcher now activates drbd pairs after secondary node
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    reboots
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  - Removed dependency on debian's patched fping that uses the
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    non-standard -S option
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  - Now the OS definitions are searched for in multiple, configurable
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    paths (easier for distros to package)
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  - Some changes to the hooks infrastructure (especially the new
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    post-configuration update hook)
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  - Other small bugfixes