Synnefo » snf-ganeti

Version 2.0.2

  - Added experimental support for stripped logical volumes; this should

    enhance performance but comes with a higher complexity in the block

    device handling; stripping is only enabled when passing

    --with-lvm-stripecount=N to configure, but codepaths are affected

    even in the non-stripped mode

  - Improved resiliency against transient failures at the end of DRBD

    resyncs, and in general of DRBD resync checks

  - Fixed a couple of issues with exports and snapshot errors

  - Fixed a couple of issues in instance listing

  - Added display of the disk size in “gnt-instance info”

  - Fixed checking for valid OSes in instance creation

  - Fixed handling of the ‘vcpus’ parameter in instance listing and in

    general of invalid parameters

  - Fixed http server library, and thus RAPI, to handle invalid

    username/password combinations correctly; this means that now they

    report unauthorized for queries too, not only for modifications,

    allowing earlier detect of configuration problems

  - Added a new ‘role’ node list field, equivalent to the master/master

    candidate/drained/offline flags combinations

  - Fixed cluster modify and changes of candidate pool size

  - Fixed cluster verify error messages for wrong files on regular nodes

  - Fixed a couple of issues with node demotion from master candidate

    role

  - Fixed node readd issues

  - Added non-interactive mode for “ganeti-masterd --no-voting” startup

  - Added a new ‘--no-voting’ option for masterfailover to fix failover

    on two-nodes clusters when the former master node is unreachable

  - Added instance reinstall over RAPI

Version 2.0.1

  - added -H/-B startup parameters to gnt-instance, which will allow

    re-adding the start in single-user option (regression from 1.2)

  - the watcher writes the instance status to a file, to allow

    monitoring to report the instance status (from the master) based on

    cached results of the watcher's queries; while this can get stale if

    the watcher is being locked due to other work on the cluster, this

    is still an improvement

  - the watcher now also restarts the node daemon and the rapi daemon if

    they died

  - fixed the watcher to handle full and drained queue cases

  - hooks export more instance data in the environment, which helps if

    hook scripts need to take action based on the instance's properties

    (no longer need to query back into ganeti)

  - instance failovers when the instance is stopped do not check for

    free RAM, so that failing over a stopped instance is possible in low

    memory situations

  - rapi uses queries for tags instead of jobs (for less job traffic),

    and for cluster tags it won't talk to masterd at all but read them

    from ssconf

  - a couple of error handling fixes in RAPI

  - drbd handling: improved the error handling of inconsistent disks

    after resync to reduce the frequency of "there are some degraded

    disks for this instance" message

  - fixed a bug in live migration when DRBD doesn't want to reconnect

    (the error handling path called a wrong function name)

Version 2.0.0 final

  - no changes from rc5

Version 2.0 release candidate 5

  - fix a couple of bugs (validation, argument checks)

  - fix gnt-cluster getmaster on non-master nodes (regression)

  - some small improvements to RAPI and IAllocator

  - make watcher automatically start the master daemon if down

Version 2.0 release candidate 4

  - change the OS list to not require locks; this helps with big

    clusters

  - fix gnt-cluster verify and gnt-cluster verify-disks when the volume

    group is broken

  - “gnt-instance info”, without any arguments, doesn't run for all

    instances anymore; either pass ‘--all’ or pass the desired

    instances; this helps against mistakes on big clusters where listing

    the information for all instances takes a long time

  - miscellaneous doc and man pages fixes

Version 2.0 release candidate 3

  - Change the internal locking model of some gnt-node commands, in

    order to reduce contention (and blocking of master daemon) when

    batching many creation/reinstall jobs

  - Fixes to Xen soft reboot

  - No longer build documentation at 'make' time, instead distribute it

    in the archive, in order to reduce the need for the whole

    docbook/rst toolchains

Version 2.0 release candidate 2

  - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to

    2.0

  - Fix watcher startup sequence, improves the behaviour of busy

    clusters

  - Some other fixes in cluster verify, replace-disks, gnt-instance add,

    gnt-cluster queue, KVM VNC bind address and other places

  - Some documentation fixes and updates

Version 2.0 release candidate 1

  - More documentation updates, now all docs should be more-or-less

    up-to-date

  - A couple of small fixes (mixed hypervisor clusters, offline nodes,

    etc.)

  - Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen

    PVM and KVM)

  - Fix an issue related to $libdir/run/ganeti and cluster creation

Version 2.0 beta 2

  - Xen PVM and KVM have switched the default value for the instance

    root disk to the first partition on the first drive, instead of the

    whole drive; this means that the OS installation scripts must be

    changed accordingly

  - Man pages have been updated

  - RAPI has been switched by default to HTTPS, and the exported

    functions should all work correctly

  - RAPI v1 has been removed

  - Many improvements to the KVM hypervisor

  - Block device errors are now better reported

  - Many other bugfixes and small improvements

Version 2.0 beta 1

  - Version 2 is a general rewrite of the code and therefore the

    differences are too many to list, see the design document for 2.0 in

    the doc/ subdirectory for more details

  - In this beta version there is not yet a migration path from 1.2

    (there will be one in the final 2.0 release)

  - A few significant changes are:

    - all commands are executed by a daemon (ganeti-masterd) and the

      various gnt-* commands are just front-ends to it

    - all the commands are entered into, and executed from a job queue,

      see gnt-job(8)

    - the RAPI daemon supports read-write operations, secured by basic

      HTTP authentication on top of HTTPS

    - DRBD version 0.7 support has been removed, DRBD 8 is the only

      supported version (when migrating from Ganeti 1.2 to 2.0, you need

      to migrate to DRBD 8 first while still running Ganeti 1.2)

    - DRBD devices are using statically allocated minor numbers, which

      will be assigned to existing instances during the migration

      process

    - there is support for both Xen PVM and Xen HVM instances running on

      the same cluster

    - KVM virtualization is supported too

    - file-based storage has been implemented, which means that it is

      possible to run the cluster without LVM and DRBD storage, for

      example using a shared filesystem exported from shared storage

      (and still have live migration)

Version 1.2.7

  - Change the default reboot type in gnt-instance reboot to "hard"

  - Reuse the old instance mac address by default on instance import,

    if the instance name is the same.

  - Handle situations in which the node info rpc returns incomplete results

    (issue 46)

  - Add checks for tcp/udp ports collisions in gnt-cluster verify

  - Improved version of batcher:

    - state file support

    - instance mac address support

    - support for HVM clusters/instances

  - Add an option to show the number of cpu sockets and nodes in gnt-node list

  - Support OSes that handle more than one version of the OS api

    (but do not change the current API in any other way)

  - Fix gnt-node migrate

  - gnt-debug man page

  - Fixes various more typos&small issues

  - Increase disk resync maximum speed to 60MB/s (from 30MB/s)

Version 1.2.6

  - new --hvm-nic-type and --hvm-disk-type flags to control the type of disk

    exported to fully virtualized instances.

  - provide access to the serial console of HVM instances

  - instance auto_balance flag, set by default. If turned off it will avoid

    warnings on cluster verify if there is not enough memory to fail over an

    instance. in the future it will prevent automatically failing it over when

    we will support that.

  - batcher tool for instance creation, see /tools/README.batcher

  - gnt-instance reinstall --select-os to interactively select a new operating

    system when reinstalling an instance.

  - when changing the memory amount on instance modify a check has been added

    that the instance will be able to start. also warnings are emitted if the

    instance will not be able to fail over, if auto_balance is true.

  - documentation fixes

  - sync fields between instance list/modify/add/import

  - fix a race condition in drbd when the sync speed was set after giving the

    device a remote peer.

Version 1.2.5

  - note: the allowed size and number of tags per object were reduced

  - fix a bug in “gnt-cluster verify” with inconsistent volume groups

  - fixed twisted 8.x compatibility

  - fixed gnt-instance replace-disks with iallocator

  - add TCP keepalives on twisted connections to detect restarted nodes

  - disk increase support, see “gnt-instance grow-disk”

  - implement bulk node/instance query for RAPI

  - add tags in node/instance listing (optional)

  - experimental migration (and live migration) support, read the man

    page for “gnt-instance migrate”

  - the ganeti-watcher logs are now timestamped, and the watcher also

    has some small improvements in handling its state file

Version 1.2.4

  - Experimental readonly, REST-based remote API implementation; automatically

    started on master node, TCP port 5080, if enabled by --enable-rapi

    parameter to configure script.

  - Instance allocator support. Add and import instance accept a --iallocator

    parameter, and call that instance allocator to decide which node to use for

    the instance. The iallocator document describes what's expected from an

    allocator script.

  - gnt-cluster verify N+1 memory redundancy checks: Unless passed the

    --no-nplus1-mem option gnt-cluster verify now checks that if a node is lost

    there is still enough memory to fail over the instances that reside on it.

  - gnt-cluster verify hooks: it is now possible to add post-hooks to

    gnt-cluster verify, to check for site-specific compliance. All the hooks

    will run, and their output, if any, will be displayed. Any failing hook

    will make the verification return an error value.

  - gnt-cluster verify now checks that its peers are reachable on the primary

    and secondary interfaces

  - gnt-node add now supports the --readd option, to readd a node that is still

    declared as part of the cluster and has failed.

  - gnt-* list commands now accept a new -o +field way of specifying output

    fields, that just adds the chosen fields to the default ones.

  - gnt-backup now has a new "remove" command to delete an existing export from

    the filesystem.

  - New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path have

    been added. Using them you can enable/disable acpi and pae support, and

    specify a path for a cd image to be exported to the instance. These

    parameters as the name suggest only work on HVM clusters.

  - When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and PAE

    support will be set to the previously hardcoded values, but the (previously

    hardcoded) path to the CDROM ISO image will be unset and if required, needs

    to be set manually with gnt-instance modify after the upgrade..

  - The address to which an instance's VNC console is bound is now selectable

    per-instance, rather than being cluster wide. Of course this only applies

    to instances controlled via VNC, so currently just applies to HVM clusters.

Version 1.2.3

  - more tweaks to the disk activation code (especially helpful for DRBD)

  - change the default ‘gnt-instance list’ output format, now there is

    one combined status field (see the manpage for the exact values this

    field will have)

  - some more fixes for the mac export to hooks change

  - make Ganeti not break with DRBD 8.2.x (which changed the version

    format in /proc/drbd) (issue 24)

  - add an upgrade tool from ‘remote_raid1’ disk template to ‘drbd’ disk

    template, allowing migration from DRBD0.7+MD to DRBD8

Version 1.2.2

  - fix ‘gnt-instance modify’ breakage introduced in 1.2.1 with the HVM

    support (issue 23)

  - add command aliases infrastructure and a few aliases

  - allow listing of VCPUs in the gnt-instance list and improve the man

    pages and the --help option of gnt-node/gnt-instance list

  - fix gnt-backup list with down nodes (issue 21)

  - change the tools location (move from $pkgdatadir to

    $pkglibdir/tools)

  - fix the dist archive and add a check for including svn/git files in

    the future

  - some developer-related changes: improve the burnin and the QA

    suite, add an upload script for testing during development

Version 1.2.1

  - experimental HVM support, read the install document, section

    "Initializing the cluster"

  - allow for the PVM hypervisor per-instance kernel and initrd paths

  - add a new command ‘gnt-cluster verify-disks’ which uses a new

    algorithm to improve the reconnection of the DRBD pairs if the

    device on the secondary node has gone away

  - make logical volume code auto-activate LVs at disk activation time

  - slightly improve the speed of activating disks

  - allow specification of the MAC address at instance creation time,

    and changing it later via ‘gnt-instance modify’

  - fix handling of external commands that generate lots of output on

    stderr

  - update documentation with regard to minimum version of DRBD8

    supported

Version 1.2.0

  - Log the ‘xm create’ output to the node daemon log on failure (to

    help diagnosing the error)

  - In debug mode, log all external commands output if failed to the

    logs

  - Change parsing of lvm commands to ignore stderr

Version 1.2b3

  - Another round of updates to the DRBD 8 code to deal with more

    failures in the replace secondary node operation

  - Some more logging of failures in disk operations (lvm, drbd)

  - A few documentation updates

  - QA updates

Version 1.2b2

  - Change configuration file format from Python's Pickle to JSON.

    Upgrading is possible using the cfgupgrade utility.

  - Add support for DRBD 8.0 (new disk template `drbd`) which allows for

    faster replace disks and is more stable (DRBD 8 has many

    improvements compared to DRBD 0.7)

  - Added command line tags support (see man pages for gnt-instance,

    gnt-node, gnt-cluster)

  - Added instance rename support

  - Added multi-instance startup/shutdown

  - Added cluster rename support

  - Added `gnt-node evacuate` to simplify some node operations

  - Added instance reboot operation that can speedup reboot as compared

    to stop and start

  - Soften the requirement that hostnames are in FQDN format

  - The ganeti-watcher now activates drbd pairs after secondary node

    reboots

  - Removed dependency on debian's patched fping that uses the

    non-standard -S option

  - Now the OS definitions are searched for in multiple, configurable

    paths (easier for distros to package)

  - Some changes to the hooks infrastructure (especially the new

    post-configuration update hook)

  - Other small bugfixes