X-Git-Url: https://code.grnet.gr/git/ganeti-local/blobdiff_plain/b713fb7a45e49955d68e5b16957e3c7c7a482726..7df2c4f005dab06dbda4daa3e50cf061f3d5d632:/NEWS diff --git a/NEWS b/NEWS index ef31fda..aec0046 100644 --- a/NEWS +++ b/NEWS @@ -1,18 +1,293 @@ News ==== -Version 2.5.0 beta1 -------------------- +Version 2.5.0 rc1 +----------------- -*(unreleased)* +*(Released Tue, 4 Oct 2011)* + +Incompatible/important changes and bugfixes +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - The default of the ``/2/instances/[instance_name]/rename`` RAPI resource's ``ip_check`` parameter changed from ``True`` to ``False`` - to match the underlying LUXI interface + to match the underlying LUXI interface. +- The ``/2/nodes/[node_name]/evacuate`` RAPI resource was changed to use + body parameters, see :doc:`RAPI documentation `. The server does + not maintain backwards-compatibility as the underlying operation + changed in an incompatible way. The RAPI client can talk to old + servers, but it needs to be told so as the return value changed. - When creating file-based instances via RAPI, the ``file_driver`` - parameter no longer defaults to ``loop`` and must be specified -- The deprecated "bridge" nic parameter is no longer supported. Use - "link" instead. + parameter no longer defaults to ``loop`` and must be specified. +- The deprecated ``bridge`` NIC parameter is no longer supported. Use + ``link`` instead. +- Support for the undocumented and deprecated RAPI instance creation + request format version 0 has been dropped. Use version 1, supported + since Ganeti 2.1.3 and :doc:`documented `, instead. +- Pyparsing 1.4.6 or above is required, see :doc:`installation + documentation `. +- The "cluster-verify" hooks are now executed per group by the + ``OP_CLUSTER_VERIFY_GROUP`` opcode. This maintains the same behavior + if you just run ``gnt-cluster verify``, which generates one opcode per + group. +- The environment as passed to the OS scripts is cleared, and thus no + environment variables defined in the node daemon's environment will be + inherited by the scripts. +- The :doc:`iallocator ` mode ``multi-evacuate`` has been + deprecated. +- :doc:`New iallocator modes ` have been added to + support operations involving multiple node groups. +- Offline nodes are ignored when failing over an instance. + +New features +~~~~~~~~~~~~ + +- The ganeti-htools project has been merged into the ganeti-core source + tree and will be built as part of Ganeti (see :doc:`install-quick`). +- Implemented support for :doc:`shared storage `. +- Add support for disks larger than 2 TB in ``lvmstrap`` by supporting + GPT-style partition tables (requires `parted + `_). +- Added support for floppy drive and 2nd CD-ROM drive in KVM hypervisor. +- Allowed adding tags on instance creation. +- Export instance tags to hooks (``INSTANCE_TAGS``, see :doc:`hooks`) +- Allow instances to be started in a paused state, enabling the user to + see the complete console output on boot using the console. +- Added new hypervisor flag to control default reboot behaviour + (``reboot_behavior``). +- Added support for KVM keymaps (hypervisor parameter ``keymap``). +- Improved out-of-band management support: + + - Added ``gnt-node health`` command reporting the health status of + nodes. + - Added ``gnt-node power`` command to manage power status of nodes. + - Added command for emergency power-off (EPO), ``gnt-cluster epo``. + +- Instance migration can fall back to failover if instance is not + running. +- Filters can be used when listing nodes, instances, groups and locks; + see *ganeti(7)* manpage. +- Added post-execution status as variables to :doc:`hooks ` + environment. +- Instance tags are exported/imported together with the instance. +- When given an explicit job ID, ``gnt-job info`` will work for archived + jobs. +- Jobs can define dependencies on other jobs (not yet supported via + RAPI or command line, but used by internal commands and usable via + LUXI). + + - Lock monitor (``gnt-debug locks``) shows jobs waiting for + dependencies. + +- Instance failover is now available as a RAPI resource + (``/2/instances/[instance_name]/failover``). +- ``gnt-instance info`` defaults to static information if primary node + is offline. +- Opcodes have a new ``comment`` attribute. +- Added basic SPICE support to KVM hypervisor. +- ``tools/ganeti-listrunner`` allows passing of arguments to executable. + +Node group improvements +~~~~~~~~~~~~~~~~~~~~~~~ + +- ``gnt-cluster verify`` has been modified to check groups separately, + thereby improving performance. +- Node group support has been added to ``gnt-cluster verify-disks``, + which now operates per node group. +- Watcher has been changed to work better with node groups. + + - One process and state file per node group. + - Slow watcher in one group doesn't block other group's watcher. + +- Added new command, ``gnt-group evacuate``, to move all instances in a + node group to other groups. +- Added ``gnt-instance change-group`` to move an instance to another + node group. +- ``gnt-cluster command`` and ``gnt-cluster copyfile`` now support + per-group operations. +- Node groups can be tagged. +- Some operations switch from an exclusive to a shared lock as soon as + possible. +- Instance's primary and secondary nodes' groups are now available as + query fields (``pnode.group``, ``pnode.group.uuid``, ``snodes.group`` + and ``snodes.group.uuid``). + +Misc +~~~~ + +- Numerous updates to documentation and manpages. + + - :doc:`RAPI ` documentation now has detailed parameter + descriptions. + +- A lockset's internal lock is now also visible in lock monitor. +- Log messages from job queue workers now contain information about the + opcode they're processing. +- ``gnt-instance console`` no longer requires the instance lock. +- A short delay when waiting for job changes reduces the number of LUXI + requests significantly. +- DRBD metadata volumes are overwritten with zeros during disk creation. + + +Version 2.5.0 beta3 +------------------- + +*(Released Wed, 31 Aug 2011)* + +This was the third beta release of the 2.5 series. + + +Version 2.5.0 beta2 +------------------- + +*(Released Mon, 22 Aug 2011)* + +This was the second beta release of the 2.5 series. + + +Version 2.5.0 beta1 +------------------- + +*(Released Fri, 12 Aug 2011)* + +This was the first beta release of the 2.5 series. + + +Version 2.4.4 +------------- + +*(Released Tue, 23 Aug 2011)* + +Small bug-fixes: + +- Fixed documentation for importing with ``--src-dir`` option +- Fixed a bug in ``ensure-dirs`` with queue/archive permissions +- Fixed a parsing issue with DRBD 8.3.11 in the Linux kernel + + +Version 2.4.3 +------------- + +*(Released Fri, 5 Aug 2011)* + +Many bug-fixes and a few small features: + +- Fixed argument order in ``ReserveLV`` and ``ReserveMAC`` which caused + issues when you tried to add an instance with two MAC addresses in one + request +- KVM: fixed per-instance stored UID value +- KVM: configure bridged NICs at migration start +- KVM: Fix a bug where instance will not start with never KVM versions + (>= 0.14) +- Added OS search path to ``gnt-cluster info`` +- Fixed an issue with ``file_storage_dir`` where you were forced to + provide an absolute path, but the documentation states it is a + relative path, the documentation was right +- Added a new parameter to instance stop/start called ``--no-remember`` + that will make the state change to not be remembered +- Implemented ``no_remember`` at RAPI level +- Improved the documentation +- Node evacuation: don't call IAllocator if node is already empty +- Fixed bug in DRBD8 replace disks on current nodes +- Fixed bug in recreate-disks for DRBD instances +- Moved assertion checking locks in ``gnt-instance replace-disks`` + causing it to abort with not owning the right locks for some situation +- Job queue: Fixed potential race condition when cancelling queued jobs +- Fixed off-by-one bug in job serial generation +- ``gnt-node volumes``: Fix instance names +- Fixed aliases in bash completion +- Fixed a bug in reopening log files after being sent a SIGHUP +- Added a flag to burnin to allow specifying VCPU count +- Bugfixes to non-root Ganeti configuration + + +Version 2.4.2 +------------- + +*(Released Thu, 12 May 2011)* + +Many bug-fixes and a few new small features: + +- Fixed a bug related to log opening failures +- Fixed a bug in instance listing with orphan instances +- Fixed a bug which prevented resetting the cluster-level node parameter + ``oob_program`` to the default +- Many fixes related to the ``cluster-merge`` tool +- Fixed a race condition in the lock monitor, which caused failures + during (at least) creation of many instances in parallel +- Improved output for gnt-job info +- Removed the quiet flag on some ssh calls which prevented debugging + failures +- Improved the N+1 failure messages in cluster verify by actually + showing the memory values (needed and available) +- Increased lock attempt timeouts so that when executing long operations + (e.g. DRBD replace-disks) other jobs do not enter 'blocking acquire' + too early and thus prevent the use of the 'fair' mechanism +- Changed instance query data (``gnt-instance info``) to not acquire + locks unless needed, thus allowing its use on locked instance if only + static information is asked for +- Improved behaviour with filesystems that do not support rename on an + opened file +- Fixed the behaviour of ``prealloc_wipe_disks`` cluster parameter which + kept locks on all nodes during the wipe, which is unneeded +- Fixed ``gnt-watcher`` handling of errors during hooks execution +- Fixed bug in ``prealloc_wipe_disks`` with small disk sizes (less than + 10GiB) which caused the wipe to fail right at the end in some cases +- Fixed master IP activation when doing master failover with no-voting +- Fixed bug in ``gnt-node add --readd`` which allowed the re-adding of + the master node itself +- Fixed potential data-loss in under disk full conditions, where Ganeti + wouldn't check correctly the return code and would consider + partially-written files 'correct' +- Fixed bug related to multiple VGs and DRBD disk replacing +- Added new disk parameter ``metavg`` that allows placement of the meta + device for DRBD in a different volume group +- Fixed error handling in the node daemon when the system libc doesn't + have major number 6 (i.e. if ``libc.so.6`` is not the actual libc) +- Fixed lock release during replace-disks, which kept cluster-wide locks + when doing disk replaces with an iallocator script +- Added check for missing bridges in cluster verify +- Handle EPIPE errors while writing to the terminal better, so that + piping the output to e.g. ``less`` doesn't cause a backtrace +- Fixed rare case where a ^C during Luxi calls could have been + interpreted as server errors, instead of simply terminating +- Fixed a race condition in LUGroupAssignNodes (``gnt-group + assign-nodes``) +- Added a few more parameters to the KVM hypervisor, allowing a second + CDROM, custom disk type for CDROMs and a floppy image +- Removed redundant message in instance rename when the name is given + already as a FQDN +- Added option to ``gnt-instance recreate-disks`` to allow creating the + disks on new nodes, allowing recreation when the original instance + nodes are completely gone +- Added option when converting disk templates to DRBD to skip waiting + for the resync, in order to make the instance available sooner +- Added two new variables to the OS scripts environment (containing the + instance's nodes) +- Made the root_path and optional parameter for the xen-pvm hypervisor, + to allow use of ``pvgrub`` as bootloader +- Changed the instance memory modifications to only check out-of-memory + conditions on memory increases, and turned the secondary node warnings + into errors (they can still be overridden via ``--force``) +- Fixed the handling of a corner case when the Python installation gets + corrupted (e.g. a bad disk) while ganeti-noded is running and we try + to execute a command that doesn't exist +- Fixed a bug in ``gnt-instance move`` (LUInstanceMove) when the primary + node of the instance returned failures during instance shutdown; this + adds the option ``--ignore-consistency`` to gnt-instance move + +And as usual, various improvements to the error messages, documentation +and man pages. + +Version 2.4.1 +------------- + +*(Released Wed, 09 Mar 2011)* + +Emergency bug-fix release. ``tools/cfgupgrade`` was broken and overwrote +the RAPI users file if run twice (even with ``--dry-run``). + +The release fixes that bug (nothing else changed). Version 2.4.0