Synnefo » snf-ganeti » ganeti-local

Incompatible/important changes

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Instance policy can contain multiple instance specs, as described in

  the “Constrained instance sizes” section of :doc:`Partitioned Ganeti

  <design-partitioned>`. As a consequence, it's not possible to partially change

  or override instance specs. Bounding specs (min and max) can be specified as a

  whole using the new option ``--ipolicy-bounds-specs``, while standard

  specs use the new option ``--ipolicy-std-specs``.

- The output of the info command of gnt-cluster, gnt-group, gnt-node,

  gnt-instance is a valid YAML object.

- hail now honors network restrictions when allocating nodes. This led to an

  update of the IAllocator protocol. See the IAllocator documentation for

  details.

New features

~~~~~~~~~~~~

- Disk templates in group ipolicy can be restored to the default value.

- Initial support for diskless instances and virtual clusters in QA.

- More QA and unit tests for instance policies.

- Every opcode now contains a reason trail (visible through ``gnt-job info``)

  describing why the opcode itself was executed.

- The monitoring daemon is now available. It allows users to query the cluster

  for obtaining information about the status of the system. The daemon is only

  responsible for providing the information over the network: the actual data

  gathering is performed by data collectors (currently, only the DRBD status

  collector is available).

- In order to help developers work on Ganeti, a new script

  (``devel/build_chroot``) is provided, for building a chroot that contains all

  the required development libraries and tools for compiling Ganeti on a Debian

  Squeeze system.

- A new tool, ``harep``, for performing self-repair and recreation of instances

  in Ganeti has been added.

- Split queries are enabled for tags, network, exports, cluster info, groups,

  jobs, nodes.

- New command ``show-ispecs-cmd`` for ``gnt-cluster`` and ``gnt-group``.

  It prints the command line to set the current policies, to ease

  changing them.

New dependencies

~~~~~~~~~~~~~~~~

The following new dependencies have been added:

For Haskell:

- The ``curl`` library is not optional anymore for compiling the Haskell code.

- ``snap-server`` library (if monitoring is enabled).

For Python:

- The minimum Python version needed to run Ganeti is now 2.6.

- ``yaml`` library (only for running the QA).