News ==== Version 2.0.3 ------------- - Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command to allow using the pre-2.0.2 behaviour in activation, if any existing instances have mismatched disk sizes in the configuration - Added ``gnt-cluster repair-disk-sizes`` command to check and update any configuration mismatches for disk sizes - Added ``gnt-master cluste-failover --no-voting`` to allow master failover to work on two-node clusters - Fixed the ‘--net’ option of ``gnt-backup import``, which was unusable - Fixed detection of OS script errors in ``gnt-backup export`` - Fixed exit code of ``gnt-backup export`` 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" messages - 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 build 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 ``gnt-cluster verify``, ``gnt-instance 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 the ``gnt-job(8)`` manpage - 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 and 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 ``gnt-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 list``/``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 .. vim: set textwidth=72 :