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News |
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==== |
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|
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Version 2.2.0 rc0 |
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----------------- |
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|
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*(UNRELEASED)* |
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|
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Important change: the internal RPC mechanism between Ganeti nodes has |
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changed from using a home-grown http library (based on the Python base |
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libraries) to use the PycURL library. This requires that PycURL is |
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installed on nodes. Please note that on Debian/Ubuntu, PycURL is linked |
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against GnuTLS by default. cURL's support for GnuTLS had known issues |
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before cURL 7.21.0 and we recommend using the latest cURL release or |
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linking against OpenSSL. Most other distributions already link PycURL |
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and cURL against OpenSSL. The command:: |
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|
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python -c 'import pycurl; print pycurl.version' |
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|
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can be used to determine the libraries PycURL and cURL are linked |
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against. |
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|
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Other significant changes: |
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|
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- Rewrote much of the internals of the job queue, in order to achieve |
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better parallelism; this decouples job query operations from the job |
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processing, and it should allow much nicer behaviour of the master |
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daemon under load, and it also has uncovered some long-standing bugs |
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related to the job serialisation (now fixed) |
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- Added a default iallocator setting to the cluster parameters, |
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eliminating the need to always pass nodes or an iallocator for |
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operations that require selection of new node(s) |
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- Added experimental support for the LXC virtualization method |
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- Added support for OS parameters, which allows the installation of |
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instances to pass parameter to OS scripts in order to customise the |
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instance |
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- Added a hypervisor parameter controlling the migration type (live or |
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non-live), since hypervisors have various levels of reliability; this |
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has renamed the 'live' parameter to 'mode' |
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- Added a cluster parameter ``reserved_lvs`` that denotes reserved |
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logical volumes, meaning that cluster verify will ignore them and not |
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flag their presence as errors |
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- The watcher will now reset the error count for failed instances after |
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8 hours, thus allowing self-healing if the problem that caused the |
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instances to be down/fail to start has cleared in the meantime |
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- Added a cluster parameter ``drbd_usermode_helper`` that makes Ganeti |
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check for, and warn, if the drbd module parameter ``usermode_helper`` |
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is not consistent with the cluster-wide setting; this is needed to |
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make diagnose easier of failed drbd creations |
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- Started adding base IPv6 support, but this is not yet |
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enabled/available for use |
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- Rename operations (cluster, instance) will now return the new name, |
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which is especially useful if a short name was passed in |
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- Added support for instance migration in RAPI |
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- Added a tool to pre-configure nodes for the SSH setup, before joining |
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them to the cluster; this will allow in the future a simplified model |
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for node joining (but not yet fully enabled in 2.2); this needs the |
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paramiko python library |
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- Fixed handling of name-resolving errors |
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- Fixed consistency of job results on the error path |
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- Fixed master-failover race condition when executed multiple times in |
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sequence |
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- Fixed many bugs related to the job queue (mostly introduced during the |
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2.2 development cycle, so not all are impacting 2.1) |
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- Fixed instance migration with missing disk symlinks |
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- Fixed handling of unknown jobs in ``gnt-job archive`` |
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- And many other small fixes/improvements |
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|
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Internal changes: |
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|
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- Enhanced both the unittest and the QA coverage |
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- Switched the opcode validation to a generic model, and extended the |
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validation to all opcode parameters |
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- Changed more parts of the code that write shell scripts to use the |
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same class for this |
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- Switched the master daemon to use the asyncore library for the Luxi |
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server endpoint |
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|
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|
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Version 2.2.0 beta 0 |
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-------------------- |
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|
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*(Released Thu, 17 Jun 2010)* |
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|
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- Added tool (``move-instance``) and infrastructure to move instances |
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between separate clusters (see :doc:`separate documentation |
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<move-instance>` and :doc:`design document <design-2.2>`) |
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- Added per-request RPC timeout |
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- RAPI now requires a Content-Type header for requests with a body (e.g. |
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``PUT`` or ``POST``) which must be set to ``application/json`` (see |
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RFC2616 (HTTP/1.1), section 7.2.1) |
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- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not |
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reachable |
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- Implemented initial support for running Ganeti daemons as separate |
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users, see configure-time flags ``--with-user-prefix`` and |
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``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this |
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time) |
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- Instances can be removed after export (``gnt-backup export |
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--remove-instance``) |
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- Self-signed certificates generated by Ganeti now use a 2048 bit RSA |
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key (instead of 1024 bit) |
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- Added new cluster configuration file for cluster domain secret |
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- Import/export now use SSL instead of SSH |
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- Added support for showing estimated time when exporting an instance, |
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see the ``ganeti-os-interface(7)`` manpage and look for |
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``EXP_SIZE_FD`` |
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|
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|
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Version 2.1.6 |
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------------- |
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|
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*(Released Fri, 16 Jul 2010)* |
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|
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Bugfixes only: |
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- Add an option to only select some reboot types during qa/burnin. |
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(on some hypervisors consequent reboots are not supported) |
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- Fix infrequent race condition in master failover. Sometimes the old |
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master ip address would be still detected as up for a short time |
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after it was removed, causing failover to fail. |
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- Decrease mlockall warnings when the ctypes module is missing. On |
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Python 2.4 we support running even if no ctypes module is installed, |
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but we were too verbose about this issue. |
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- Fix building on old distributions, on which man doesn't have a |
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--warnings option. |
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- Fix RAPI not to ignore the MAC address on instance creation |
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- Implement the old instance creation format in the RAPI client. |
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|
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|
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Version 2.1.5 |
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------------- |
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|
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*(Released Thu, 01 Jul 2010)* |
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|
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A small bugfix release: |
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- Fix disk adoption: broken by strict --disk option checking in 2.1.4 |
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- Fix batch-create: broken in the whole 2.1 series due to a lookup on |
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a non-existing option |
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- Fix instance create: the --force-variant option was ignored |
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- Improve pylint 0.21 compatibility and warnings with Python 2.6 |
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- Fix modify node storage with non-FQDN arguments |
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- Fix RAPI client to authenticate under Python 2.6 when used |
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for more than 5 requests needing authentication |
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- Fix gnt-instance modify -t (storage) giving a wrong error message |
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when converting a non-shutdown drbd instance to plain |
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|
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|
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Version 2.1.4 |
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------------- |
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|
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*(Released Fri, 18 Jun 2010)* |
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|
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A small bugfix release: |
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|
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- Fix live migration of KVM instances started with older Ganeti |
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versions which had fewer hypervisor parameters |
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- Fix gnt-instance grow-disk on down instances |
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- Fix an error-reporting bug during instance migration |
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- Better checking of the ``--net`` and ``--disk`` values, to avoid |
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silently ignoring broken ones |
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- Fix an RPC error reporting bug affecting, for example, RAPI client |
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users |
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- Fix bug triggered by different API version os-es on different nodes |
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- Fix a bug in instance startup with custom hvparams: OS level |
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parameters would fail to be applied. |
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- Fix the RAPI client under Python 2.6 (but more work is needed to |
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make it work completely well with OpenSSL) |
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- Fix handling of errors when resolving names from DNS |
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|
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|
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Version 2.1.3 |
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------------- |
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|
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*(Released Thu, 3 Jun 2010)* |
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|
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A medium sized development cycle. Some new features, and some |
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fixes/small improvements/cleanups. |
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|
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Significant features |
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~~~~~~~~~~~~~~~~~~~~ |
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|
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The node deamon now tries to mlock itself into memory, unless the |
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``--no-mlock`` flag is passed. It also doesn't fail if it can't write |
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its logs, and falls back to console logging. This allows emergency |
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features such as ``gnt-node powercycle`` to work even in the event of a |
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broken node disk (tested offlining the disk hosting the node's |
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filesystem and dropping its memory caches; don't try this at home) |
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|
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KVM: add vhost-net acceleration support. It can be tested with a new |
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enough version of the kernel and of qemu-kvm. |
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|
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KVM: Add instance chrooting feature. If you use privilege dropping for |
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your VMs you can also now force them to chroot to an empty directory, |
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before starting the emulated guest. |
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|
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KVM: Add maximum migration bandwith and maximum downtime tweaking |
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support (requires a new-enough version of qemu-kvm). |
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|
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Cluster verify will now warn if the master node doesn't have the master |
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ip configured on it. |
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|
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Add a new (incompatible) instance creation request format to RAPI which |
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supports all parameters (previously only a subset was supported, and it |
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wasn't possible to extend the old format to accomodate all the new |
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features. The old format is still supported, and a client can check for |
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this feature, before using it, by checking for its presence in the |
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``features`` RAPI resource. |
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|
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Now with ancient latin support. Try it passing the ``--roman`` option to |
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``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list`` |
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(requires the python-roman module to be installed, in order to work). |
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|
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Other changes |
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~~~~~~~~~~~~~ |
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|
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As usual many internal code refactorings, documentation updates, and |
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such. Among others: |
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|
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- Lots of improvements and cleanups to the experimental Remote API |
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(RAPI) client library. |
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- A new unit test suite for the core daemon libraries. |
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- A fix to creating missing directories makes sure the umask is not |
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applied anymore. This enforces the same directory permissions |
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everywhere. |
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- Better handling terminating daemons with ctrl+c (used when running |
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them in debugging mode). |
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- Fix a race condition in live migrating a KVM instance, when stat() |
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on the old proc status file returned EINVAL, which is an unexpected |
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value. |
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- Fixed manpage checking with newer man and utf-8 charachters. But now |
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you need the en_US.UTF-8 locale enabled to build Ganeti from git. |
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|
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|
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Version 2.1.2.1 |
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--------------- |
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|
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*(Released Fri, 7 May 2010)* |
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|
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Fix a bug which prevented untagged KVM instances from starting. |
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|
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|
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Version 2.1.2 |
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------------- |
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|
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*(Released Fri, 7 May 2010)* |
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|
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Another release with a long development cycle, during which many |
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different features were added. |
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|
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Significant features |
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~~~~~~~~~~~~~~~~~~~~ |
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|
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The KVM hypervisor now can run the individual instances as non-root, to |
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reduce the impact of a VM being hijacked due to bugs in the |
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hypervisor. It is possible to run all instances as a single (non-root) |
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user, to manually specify a user for each instance, or to dynamically |
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allocate a user out of a cluster-wide pool to each instance, with the |
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guarantee that no two instances will run under the same user ID on any |
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given node. |
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|
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An experimental RAPI client library, that can be used standalone |
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(without the other Ganeti libraries), is provided in the source tree as |
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``lib/rapi/client.py``. Note this client might change its interface in |
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the future, as we iterate on its capabilities. |
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|
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A new command, ``gnt-cluster renew-crypto`` has been added to easily |
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replace the cluster's certificates and crypto keys. This might help in |
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case they have been compromised, or have simply expired. |
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|
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A new disk option for instance creation has been added that allows one |
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to "adopt" currently existing logical volumes, with data |
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preservation. This should allow easier migration to Ganeti from |
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unmanaged (or managed via other software) instances. |
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|
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Another disk improvement is the possibility to convert between redundant |
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(DRBD) and plain (LVM) disk configuration for an instance. This should |
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allow better scalability (starting with one node and growing the |
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cluster, or shrinking a two-node cluster to one node). |
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|
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A new feature that could help with automated node failovers has been |
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implemented: if a node sees itself as offline (by querying the master |
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candidates), it will try to shutdown (hard) all instances and any active |
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DRBD devices. This reduces the risk of duplicate instances if an |
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external script automatically failovers the instances on such nodes. To |
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enable this, the cluster parameter ``maintain_node_health`` should be |
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enabled; in the future this option (per the name) will enable other |
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automatic maintenance features. |
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|
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Instance export/import now will reuse the original instance |
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specifications for all parameters; that means exporting an instance, |
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deleting it and the importing it back should give an almost identical |
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instance. Note that the default import behaviour has changed from |
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before, where it created only one NIC; now it recreates the original |
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number of NICs. |
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|
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Cluster verify has added a few new checks: SSL certificates validity, |
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/etc/hosts consistency across the cluster, etc. |
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|
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Other changes |
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~~~~~~~~~~~~~ |
300 |
|
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As usual, many internal changes were done, documentation fixes, |
302 |
etc. Among others: |
303 |
|
304 |
- Fixed cluster initialization with disabled cluster storage (regression |
305 |
introduced in 2.1.1) |
306 |
- File-based storage supports growing the disks |
307 |
- Fixed behaviour of node role changes |
308 |
- Fixed cluster verify for some corner cases, plus a general rewrite of |
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cluster verify to allow future extension with more checks |
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- Fixed log spamming by watcher and node daemon (regression introduced |
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in 2.1.1) |
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- Fixed possible validation issues when changing the list of enabled |
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hypervisors |
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- Fixed cleanup of /etc/hosts during node removal |
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- Fixed RAPI response for invalid methods |
316 |
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon |
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- Multiple small improvements to the KVM hypervisor (VNC usage, booting |
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from ide disks, etc.) |
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- Allow OS changes without re-installation (to record a changed OS |
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outside of Ganeti, or to allow OS renames) |
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- Allow instance creation without OS installation (useful for example if |
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the OS will be installed manually, or restored from a backup not in |
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Ganeti format) |
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- Implemented option to make cluster ``copyfile`` use the replication |
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network |
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- Added list of enabled hypervisors to ssconf (possibly useful for |
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external scripts) |
328 |
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from |
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1.2 clusters |
330 |
- A partial form of node re-IP is possible via node readd, which now |
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allows changed node primary IP |
332 |
- Command line utilities now show an informational message if the job is |
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waiting for a lock |
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- The logs of the master daemon now show the PID/UID/GID of the |
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connected client |
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|
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|
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Version 2.1.1 |
339 |
------------- |
340 |
|
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*(Released Fri, 12 Mar 2010)* |
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|
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During the 2.1.0 long release candidate cycle, a lot of improvements and |
344 |
changes have accumulated with were released later as 2.1.1. |
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|
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Major changes |
347 |
~~~~~~~~~~~~~ |
348 |
|
349 |
The node evacuate command (``gnt-node evacuate``) was significantly |
350 |
rewritten, and as such the IAllocator protocol was changed - a new |
351 |
request type has been added. This unfortunate change during a stable |
352 |
series is designed to improve performance of node evacuations; on |
353 |
clusters with more than about five nodes and which are well-balanced, |
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evacuation should proceed in parallel for all instances of the node |
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being evacuated. As such, any existing IAllocator scripts need to be |
356 |
updated, otherwise the above command will fail due to the unknown |
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request. The provided "dumb" allocator has not been updated; but the |
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ganeti-htools package supports the new protocol since version 0.2.4. |
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|
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Another important change is increased validation of node and instance |
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names. This might create problems in special cases, if invalid host |
362 |
names are being used. |
363 |
|
364 |
Also, a new layer of hypervisor parameters has been added, that sits at |
365 |
OS level between the cluster defaults and the instance ones. This allows |
366 |
customisation of virtualization parameters depending on the installed |
367 |
OS. For example instances with OS 'X' may have a different KVM kernel |
368 |
(or any other parameter) than the cluster defaults. This is intended to |
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help managing a multiple OSes on the same cluster, without manual |
370 |
modification of each instance's parameters. |
371 |
|
372 |
A tool for merging clusters, ``cluster-merge``, has been added in the |
373 |
tools sub-directory. |
374 |
|
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Bug fixes |
376 |
~~~~~~~~~ |
377 |
|
378 |
- Improved the int/float conversions that should make the code more |
379 |
robust in face of errors from the node daemons |
380 |
- Fixed the remove node code in case of internal configuration errors |
381 |
- Fixed the node daemon behaviour in face of inconsistent queue |
382 |
directory (e.g. read-only file-system where we can't open the files |
383 |
read-write, etc.) |
384 |
- Fixed the behaviour of gnt-node modify for master candidate demotion; |
385 |
now it either aborts cleanly or, if given the new โauto_promoteโ |
386 |
parameter, will automatically promote other nodes as needed |
387 |
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would |
388 |
completely prevent Ganeti from working |
389 |
- Fixed bug for instance export when not all disks were successfully |
390 |
exported |
391 |
- Fixed behaviour of node add when the new node is slow in starting up |
392 |
the node daemon |
393 |
- Fixed handling of signals in the LUXI client, which should improve |
394 |
behaviour of command-line scripts |
395 |
- Added checks for invalid node/instance names in the configuration (now |
396 |
flagged during cluster verify) |
397 |
- Fixed watcher behaviour for disk activation errors |
398 |
- Fixed two potentially endless loops in http library, which led to the |
399 |
RAPI daemon hanging and consuming 100% CPU in some cases |
400 |
- Fixed bug in RAPI daemon related to hashed passwords |
401 |
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM |
402 |
instances |
403 |
- Enhanced compatibility with non-Debian OSes, but not using absolute |
404 |
path in some commands and allowing customisation of the ssh |
405 |
configuration directory |
406 |
- Fixed possible future issue with new Python versions by abiding to the |
407 |
proper use of ``__slots__`` attribute on classes |
408 |
- Added checks that should prevent directory traversal attacks |
409 |
- Many documentation fixes based on feedback from users |
410 |
|
411 |
New features |
412 |
~~~~~~~~~~~~ |
413 |
|
414 |
- Added an โearly_releaseโ more for instance replace disks and node |
415 |
evacuate, where we release locks earlier and thus allow higher |
416 |
parallelism within the cluster |
417 |
- Added watcher hooks, intended to allow the watcher to restart other |
418 |
daemons (e.g. from the ganeti-nbma project), but they can be used of |
419 |
course for any other purpose |
420 |
- Added a compile-time disable for DRBD barriers, to increase |
421 |
performance if the administrator trusts the power supply or the |
422 |
storage system to not lose writes |
423 |
- Added the option of using syslog for logging instead of, or in |
424 |
addition to, Ganeti's own log files |
425 |
- Removed boot restriction for paravirtual NICs for KVM, recent versions |
426 |
can indeed boot from a paravirtual NIC |
427 |
- Added a generic debug level for many operations; while this is not |
428 |
used widely yet, it allows one to pass the debug value all the way to |
429 |
the OS scripts |
430 |
- Enhanced the hooks environment for instance moves (failovers, |
431 |
migrations) where the primary/secondary nodes changed during the |
432 |
operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars |
433 |
- Enhanced data validations for many user-supplied values; one important |
434 |
item is the restrictions imposed on instance and node names, which |
435 |
might reject some (invalid) host names |
436 |
- Add a configure-time option to disable file-based storage, if it's not |
437 |
needed; this allows greater security separation between the master |
438 |
node and the other nodes from the point of view of the inter-node RPC |
439 |
protocol |
440 |
- Added user notification in interactive tools if job is waiting in the |
441 |
job queue or trying to acquire locks |
442 |
- Added log messages when a job is waiting for locks |
443 |
- Added filtering by node tags in instance operations which admit |
444 |
multiple instances (start, stop, reboot, reinstall) |
445 |
- Added a new tool for cluster mergers, ``cluster-merge`` |
446 |
- Parameters from command line which are of the form ``a=b,c=d`` can now |
447 |
use backslash escapes to pass in values which contain commas, |
448 |
e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value |
449 |
``b,c`` |
450 |
- For KVM, the instance name is the first parameter passed to KVM, so |
451 |
that it's more visible in the process list |
452 |
|
453 |
|
454 |
Version 2.1.0 |
455 |
------------- |
456 |
|
457 |
*(Released Tue, 2 Mar 2010)* |
458 |
|
459 |
Ganeti 2.1 brings many improvements with it. Major changes: |
460 |
|
461 |
- Added infrastructure to ease automated disk repairs |
462 |
- Added new daemon to export configuration data in a cheaper way than |
463 |
using the remote API |
464 |
- Instance NICs can now be routed instead of being associated with a |
465 |
networking bridge |
466 |
- Improved job locking logic to reduce impact of jobs acquiring multiple |
467 |
locks waiting for other long-running jobs |
468 |
|
469 |
In-depth implementation details can be found in the Ganeti 2.1 design |
470 |
document. |
471 |
|
472 |
Details |
473 |
~~~~~~~ |
474 |
|
475 |
- Added chroot hypervisor |
476 |
- Added more options to xen-hvm hypervisor (``kernel_path`` and |
477 |
``device_model``) |
478 |
- Added more options to xen-pvm hypervisor (``use_bootloader``, |
479 |
``bootloader_path`` and ``bootloader_args``) |
480 |
- Added the ``use_localtime`` option for the xen-hvm and kvm |
481 |
hypervisors, and the default value for this has changed to false (in |
482 |
2.0 xen-hvm always enabled it) |
483 |
- Added luxi call to submit multiple jobs in one go |
484 |
- Added cluster initialization option to not modify ``/etc/hosts`` |
485 |
file on nodes |
486 |
- Added network interface parameters |
487 |
- Added dry run mode to some LUs |
488 |
- Added RAPI resources: |
489 |
|
490 |
- ``/2/instances/[instance_name]/info`` |
491 |
- ``/2/instances/[instance_name]/replace-disks`` |
492 |
- ``/2/nodes/[node_name]/evacuate`` |
493 |
- ``/2/nodes/[node_name]/migrate`` |
494 |
- ``/2/nodes/[node_name]/role`` |
495 |
- ``/2/nodes/[node_name]/storage`` |
496 |
- ``/2/nodes/[node_name]/storage/modify`` |
497 |
- ``/2/nodes/[node_name]/storage/repair`` |
498 |
|
499 |
- Added OpCodes to evacuate or migrate all instances on a node |
500 |
- Added new command to list storage elements on nodes (``gnt-node |
501 |
list-storage``) and modify them (``gnt-node modify-storage``) |
502 |
- Added new ssconf files with master candidate IP address |
503 |
(``ssconf_master_candidates_ips``), node primary IP address |
504 |
(``ssconf_node_primary_ips``) and node secondary IP address |
505 |
(``ssconf_node_secondary_ips``) |
506 |
- Added ``ganeti-confd`` and a client library to query the Ganeti |
507 |
configuration via UDP |
508 |
- Added ability to run hooks after cluster initialization and before |
509 |
cluster destruction |
510 |
- Added automatic mode for disk replace (``gnt-instance replace-disks |
511 |
--auto``) |
512 |
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks |
513 |
after catastrophic data-loss |
514 |
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume |
515 |
groups |
516 |
- Added ``gnt-instance move`` command to move instances |
517 |
- Added ``gnt-cluster watcher`` command to control watcher |
518 |
- Added ``gnt-node powercycle`` command to powercycle nodes |
519 |
- Added new job status field ``lock_status`` |
520 |
- Added parseable error codes to cluster verification (``gnt-cluster |
521 |
verify --error-codes``) and made output less verbose (use |
522 |
``--verbose`` to restore previous behaviour) |
523 |
- Added UUIDs to the main config entities (cluster, nodes, instances) |
524 |
- Added support for OS variants |
525 |
- Added support for hashed passwords in the Ganeti remote API users file |
526 |
(``rapi_users``) |
527 |
- Added option to specify maximum timeout on instance shutdown |
528 |
- Added ``--no-ssh-init`` option to ``gnt-cluster init`` |
529 |
- Added new helper script to start and stop Ganeti daemons |
530 |
(``daemon-util``), with the intent to reduce the work necessary to |
531 |
adjust Ganeti for non-Debian distributions and to start/stop daemons |
532 |
from one place |
533 |
- Added more unittests |
534 |
- Fixed critical bug in ganeti-masterd startup |
535 |
- Removed the configure-time ``kvm-migration-port`` parameter, this is |
536 |
now customisable at the cluster level for both the KVM and Xen |
537 |
hypervisors using the new ``migration_port`` parameter |
538 |
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when |
539 |
reinstalling an instance |
540 |
- Allowed ``@`` in tag names |
541 |
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation |
542 |
- Many documentation updates |
543 |
- Distribute hypervisor files on ``gnt-cluster redist-conf`` |
544 |
- ``gnt-instance reinstall`` can now reinstall multiple instances |
545 |
- Updated many command line parameters |
546 |
- Introduced new OS API version 15 |
547 |
- No longer support a default hypervisor |
548 |
- Treat virtual LVs as inexistent |
549 |
- Improved job locking logic to reduce lock contention |
550 |
- Match instance and node names case insensitively |
551 |
- Reimplemented bash completion script to be more complete |
552 |
- Improved burnin |
553 |
|
554 |
|
555 |
Version 2.0.6 |
556 |
------------- |
557 |
|
558 |
*(Released Thu, 4 Feb 2010)* |
559 |
|
560 |
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105) |
561 |
- Fix a string formatting bug |
562 |
- Improve safety of the code in some error paths |
563 |
- Improve data validation in the master of values returned from nodes |
564 |
|
565 |
|
566 |
Version 2.0.5 |
567 |
------------- |
568 |
|
569 |
*(Released Thu, 17 Dec 2009)* |
570 |
|
571 |
- Fix security issue due to missing validation of iallocator names; this |
572 |
allows local and remote execution of arbitrary executables |
573 |
- Fix failure of gnt-node list during instance removal |
574 |
- Ship the RAPI documentation in the archive |
575 |
|
576 |
|
577 |
Version 2.0.4 |
578 |
------------- |
579 |
|
580 |
*(Released Wed, 30 Sep 2009)* |
581 |
|
582 |
- Fixed many wrong messages |
583 |
- Fixed a few bugs related to the locking library |
584 |
- Fixed MAC checking at instance creation time |
585 |
- Fixed a DRBD parsing bug related to gaps in /proc/drbd |
586 |
- Fixed a few issues related to signal handling in both daemons and |
587 |
scripts |
588 |
- Fixed the example startup script provided |
589 |
- Fixed insserv dependencies in the example startup script (patch from |
590 |
Debian) |
591 |
- Fixed handling of drained nodes in the iallocator framework |
592 |
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug |
593 |
#528618) |
594 |
- Fixed error related to invalid job IDs in job polling |
595 |
- Fixed job/opcode persistence on unclean master shutdown |
596 |
- Fixed handling of partial job processing after unclean master |
597 |
shutdown |
598 |
- Fixed error reporting from LUs, previously all errors were converted |
599 |
into execution errors |
600 |
- Fixed error reporting from burnin |
601 |
- Decreased significantly the memory usage of the job queue |
602 |
- Optimised slightly multi-job submission |
603 |
- Optimised slightly opcode loading |
604 |
- Backported the multi-job submit framework from the development |
605 |
branch; multi-instance start and stop should be faster |
606 |
- Added script to clean archived jobs after 21 days; this will reduce |
607 |
the size of the queue directory |
608 |
- Added some extra checks in disk size tracking |
609 |
- Added an example ethers hook script |
610 |
- Added a cluster parameter that prevents Ganeti from modifying of |
611 |
/etc/hosts |
612 |
- Added more node information to RAPI responses |
613 |
- Added a ``gnt-job watch`` command that allows following the ouput of a |
614 |
job |
615 |
- Added a bind-address option to ganeti-rapi |
616 |
- Added more checks to the configuration verify |
617 |
- Enhanced the burnin script such that some operations can be retried |
618 |
automatically |
619 |
- Converted instance reinstall to multi-instance model |
620 |
|
621 |
|
622 |
Version 2.0.3 |
623 |
------------- |
624 |
|
625 |
*(Released Fri, 7 Aug 2009)* |
626 |
|
627 |
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command |
628 |
to allow using the pre-2.0.2 behaviour in activation, if any existing |
629 |
instances have mismatched disk sizes in the configuration |
630 |
- Added ``gnt-cluster repair-disk-sizes`` command to check and update |
631 |
any configuration mismatches for disk sizes |
632 |
- Added ``gnt-master cluste-failover --no-voting`` to allow master |
633 |
failover to work on two-node clusters |
634 |
- Fixed the ``--net`` option of ``gnt-backup import``, which was |
635 |
unusable |
636 |
- Fixed detection of OS script errors in ``gnt-backup export`` |
637 |
- Fixed exit code of ``gnt-backup export`` |
638 |
|
639 |
|
640 |
Version 2.0.2 |
641 |
------------- |
642 |
|
643 |
*(Released Fri, 17 Jul 2009)* |
644 |
|
645 |
- Added experimental support for stripped logical volumes; this should |
646 |
enhance performance but comes with a higher complexity in the block |
647 |
device handling; stripping is only enabled when passing |
648 |
``--with-lvm-stripecount=N`` to ``configure``, but codepaths are |
649 |
affected even in the non-stripped mode |
650 |
- Improved resiliency against transient failures at the end of DRBD |
651 |
resyncs, and in general of DRBD resync checks |
652 |
- Fixed a couple of issues with exports and snapshot errors |
653 |
- Fixed a couple of issues in instance listing |
654 |
- Added display of the disk size in ``gnt-instance info`` |
655 |
- Fixed checking for valid OSes in instance creation |
656 |
- Fixed handling of the "vcpus" parameter in instance listing and in |
657 |
general of invalid parameters |
658 |
- Fixed http server library, and thus RAPI, to handle invalid |
659 |
username/password combinations correctly; this means that now they |
660 |
report unauthorized for queries too, not only for modifications, |
661 |
allowing earlier detect of configuration problems |
662 |
- Added a new "role" node list field, equivalent to the master/master |
663 |
candidate/drained/offline flags combinations |
664 |
- Fixed cluster modify and changes of candidate pool size |
665 |
- Fixed cluster verify error messages for wrong files on regular nodes |
666 |
- Fixed a couple of issues with node demotion from master candidate role |
667 |
- Fixed node readd issues |
668 |
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup |
669 |
- Added a new ``--no-voting`` option for masterfailover to fix failover |
670 |
on two-nodes clusters when the former master node is unreachable |
671 |
- Added instance reinstall over RAPI |
672 |
|
673 |
|
674 |
Version 2.0.1 |
675 |
------------- |
676 |
|
677 |
*(Released Tue, 16 Jun 2009)* |
678 |
|
679 |
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will |
680 |
allow re-adding the start in single-user option (regression from 1.2) |
681 |
- the watcher writes the instance status to a file, to allow monitoring |
682 |
to report the instance status (from the master) based on cached |
683 |
results of the watcher's queries; while this can get stale if the |
684 |
watcher is being locked due to other work on the cluster, this is |
685 |
still an improvement |
686 |
- the watcher now also restarts the node daemon and the rapi daemon if |
687 |
they died |
688 |
- fixed the watcher to handle full and drained queue cases |
689 |
- hooks export more instance data in the environment, which helps if |
690 |
hook scripts need to take action based on the instance's properties |
691 |
(no longer need to query back into ganeti) |
692 |
- instance failovers when the instance is stopped do not check for free |
693 |
RAM, so that failing over a stopped instance is possible in low memory |
694 |
situations |
695 |
- rapi uses queries for tags instead of jobs (for less job traffic), and |
696 |
for cluster tags it won't talk to masterd at all but read them from |
697 |
ssconf |
698 |
- a couple of error handling fixes in RAPI |
699 |
- drbd handling: improved the error handling of inconsistent disks after |
700 |
resync to reduce the frequency of "there are some degraded disks for |
701 |
this instance" messages |
702 |
- fixed a bug in live migration when DRBD doesn't want to reconnect (the |
703 |
error handling path called a wrong function name) |
704 |
|
705 |
|
706 |
Version 2.0.0 final |
707 |
------------------- |
708 |
|
709 |
*(Released Wed, 27 May 2009)* |
710 |
|
711 |
- no changes from rc5 |
712 |
|
713 |
|
714 |
Version 2.0 release candidate 5 |
715 |
------------------------------- |
716 |
|
717 |
*(Released Wed, 20 May 2009)* |
718 |
|
719 |
- fix a couple of bugs (validation, argument checks) |
720 |
- fix ``gnt-cluster getmaster`` on non-master nodes (regression) |
721 |
- some small improvements to RAPI and IAllocator |
722 |
- make watcher automatically start the master daemon if down |
723 |
|
724 |
|
725 |
Version 2.0 release candidate 4 |
726 |
------------------------------- |
727 |
|
728 |
*(Released Mon, 27 Apr 2009)* |
729 |
|
730 |
- change the OS list to not require locks; this helps with big clusters |
731 |
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the |
732 |
volume group is broken |
733 |
- ``gnt-instance info``, without any arguments, doesn't run for all |
734 |
instances anymore; either pass ``--all`` or pass the desired |
735 |
instances; this helps against mistakes on big clusters where listing |
736 |
the information for all instances takes a long time |
737 |
- miscellaneous doc and man pages fixes |
738 |
|
739 |
|
740 |
Version 2.0 release candidate 3 |
741 |
------------------------------- |
742 |
|
743 |
*(Released Wed, 8 Apr 2009)* |
744 |
|
745 |
- Change the internal locking model of some ``gnt-node`` commands, in |
746 |
order to reduce contention (and blocking of master daemon) when |
747 |
batching many creation/reinstall jobs |
748 |
- Fixes to Xen soft reboot |
749 |
- No longer build documentation at build time, instead distribute it in |
750 |
the archive, in order to reduce the need for the whole docbook/rst |
751 |
toolchains |
752 |
|
753 |
|
754 |
Version 2.0 release candidate 2 |
755 |
------------------------------- |
756 |
|
757 |
*(Released Fri, 27 Mar 2009)* |
758 |
|
759 |
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0 |
760 |
- Fix watcher startup sequence, improves the behaviour of busy clusters |
761 |
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance |
762 |
replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC |
763 |
bind address and other places |
764 |
- Some documentation fixes and updates |
765 |
|
766 |
|
767 |
Version 2.0 release candidate 1 |
768 |
------------------------------- |
769 |
|
770 |
*(Released Mon, 2 Mar 2009)* |
771 |
|
772 |
- More documentation updates, now all docs should be more-or-less |
773 |
up-to-date |
774 |
- A couple of small fixes (mixed hypervisor clusters, offline nodes, |
775 |
etc.) |
776 |
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM |
777 |
and KVM) |
778 |
- Fix an issue related to $libdir/run/ganeti and cluster creation |
779 |
|
780 |
|
781 |
Version 2.0 beta 2 |
782 |
------------------ |
783 |
|
784 |
*(Released Thu, 19 Feb 2009)* |
785 |
|
786 |
- Xen PVM and KVM have switched the default value for the instance root |
787 |
disk to the first partition on the first drive, instead of the whole |
788 |
drive; this means that the OS installation scripts must be changed |
789 |
accordingly |
790 |
- Man pages have been updated |
791 |
- RAPI has been switched by default to HTTPS, and the exported functions |
792 |
should all work correctly |
793 |
- RAPI v1 has been removed |
794 |
- Many improvements to the KVM hypervisor |
795 |
- Block device errors are now better reported |
796 |
- Many other bugfixes and small improvements |
797 |
|
798 |
|
799 |
Version 2.0 beta 1 |
800 |
------------------ |
801 |
|
802 |
*(Released Mon, 26 Jan 2009)* |
803 |
|
804 |
- Version 2 is a general rewrite of the code and therefore the |
805 |
differences are too many to list, see the design document for 2.0 in |
806 |
the ``doc/`` subdirectory for more details |
807 |
- In this beta version there is not yet a migration path from 1.2 (there |
808 |
will be one in the final 2.0 release) |
809 |
- A few significant changes are: |
810 |
|
811 |
- all commands are executed by a daemon (``ganeti-masterd``) and the |
812 |
various ``gnt-*`` commands are just front-ends to it |
813 |
- all the commands are entered into, and executed from a job queue, |
814 |
see the ``gnt-job(8)`` manpage |
815 |
- the RAPI daemon supports read-write operations, secured by basic |
816 |
HTTP authentication on top of HTTPS |
817 |
- DRBD version 0.7 support has been removed, DRBD 8 is the only |
818 |
supported version (when migrating from Ganeti 1.2 to 2.0, you need |
819 |
to migrate to DRBD 8 first while still running Ganeti 1.2) |
820 |
- DRBD devices are using statically allocated minor numbers, which |
821 |
will be assigned to existing instances during the migration process |
822 |
- there is support for both Xen PVM and Xen HVM instances running on |
823 |
the same cluster |
824 |
- KVM virtualization is supported too |
825 |
- file-based storage has been implemented, which means that it is |
826 |
possible to run the cluster without LVM and DRBD storage, for |
827 |
example using a shared filesystem exported from shared storage (and |
828 |
still have live migration) |
829 |
|
830 |
|
831 |
Version 1.2.7 |
832 |
------------- |
833 |
|
834 |
*(Released Tue, 13 Jan 2009)* |
835 |
|
836 |
- Change the default reboot type in ``gnt-instance reboot`` to "hard" |
837 |
- Reuse the old instance mac address by default on instance import, if |
838 |
the instance name is the same. |
839 |
- Handle situations in which the node info rpc returns incomplete |
840 |
results (issue 46) |
841 |
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify`` |
842 |
- Improved version of batcher: |
843 |
|
844 |
- state file support |
845 |
- instance mac address support |
846 |
- support for HVM clusters/instances |
847 |
|
848 |
- Add an option to show the number of cpu sockets and nodes in |
849 |
``gnt-node list`` |
850 |
- Support OSes that handle more than one version of the OS api (but do |
851 |
not change the current API in any other way) |
852 |
- Fix ``gnt-node migrate`` |
853 |
- ``gnt-debug`` man page |
854 |
- Fixes various more typos and small issues |
855 |
- Increase disk resync maximum speed to 60MB/s (from 30MB/s) |
856 |
|
857 |
|
858 |
Version 1.2.6 |
859 |
------------- |
860 |
|
861 |
*(Released Wed, 24 Sep 2008)* |
862 |
|
863 |
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the |
864 |
type of disk exported to fully virtualized instances. |
865 |
- provide access to the serial console of HVM instances |
866 |
- instance auto_balance flag, set by default. If turned off it will |
867 |
avoid warnings on cluster verify if there is not enough memory to fail |
868 |
over an instance. in the future it will prevent automatically failing |
869 |
it over when we will support that. |
870 |
- batcher tool for instance creation, see ``tools/README.batcher`` |
871 |
- ``gnt-instance reinstall --select-os`` to interactively select a new |
872 |
operating system when reinstalling an instance. |
873 |
- when changing the memory amount on instance modify a check has been |
874 |
added that the instance will be able to start. also warnings are |
875 |
emitted if the instance will not be able to fail over, if auto_balance |
876 |
is true. |
877 |
- documentation fixes |
878 |
- sync fields between ``gnt-instance list/modify/add/import`` |
879 |
- fix a race condition in drbd when the sync speed was set after giving |
880 |
the device a remote peer. |
881 |
|
882 |
|
883 |
Version 1.2.5 |
884 |
------------- |
885 |
|
886 |
*(Released Tue, 22 Jul 2008)* |
887 |
|
888 |
- note: the allowed size and number of tags per object were reduced |
889 |
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups |
890 |
- fixed twisted 8.x compatibility |
891 |
- fixed ``gnt-instance replace-disks`` with iallocator |
892 |
- add TCP keepalives on twisted connections to detect restarted nodes |
893 |
- disk increase support, see ``gnt-instance grow-disk`` |
894 |
- implement bulk node/instance query for RAPI |
895 |
- add tags in node/instance listing (optional) |
896 |
- experimental migration (and live migration) support, read the man page |
897 |
for ``gnt-instance migrate`` |
898 |
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also |
899 |
has some small improvements in handling its state file |
900 |
|
901 |
|
902 |
Version 1.2.4 |
903 |
------------- |
904 |
|
905 |
*(Released Fri, 13 Jun 2008)* |
906 |
|
907 |
- Experimental readonly, REST-based remote API implementation; |
908 |
automatically started on master node, TCP port 5080, if enabled by |
909 |
``--enable-rapi`` parameter to configure script. |
910 |
- Instance allocator support. Add and import instance accept a |
911 |
``--iallocator`` parameter, and call that instance allocator to decide |
912 |
which node to use for the instance. The iallocator document describes |
913 |
what's expected from an allocator script. |
914 |
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the |
915 |
``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a |
916 |
node is lost there is still enough memory to fail over the instances |
917 |
that reside on it. |
918 |
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to |
919 |
``gnt-cluster verify``, to check for site-specific compliance. All the |
920 |
hooks will run, and their output, if any, will be displayed. Any |
921 |
failing hook will make the verification return an error value. |
922 |
- ``gnt-cluster verify`` now checks that its peers are reachable on the |
923 |
primary and secondary interfaces |
924 |
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node |
925 |
that is still declared as part of the cluster and has failed. |
926 |
- ``gnt-* list`` commands now accept a new ``-o +field`` way of |
927 |
specifying output fields, that just adds the chosen fields to the |
928 |
default ones. |
929 |
- ``gnt-backup`` now has a new ``remove`` command to delete an existing |
930 |
export from the filesystem. |
931 |
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path |
932 |
have been added. Using them you can enable/disable acpi and pae |
933 |
support, and specify a path for a cd image to be exported to the |
934 |
instance. These parameters as the name suggest only work on HVM |
935 |
clusters. |
936 |
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and |
937 |
PAE support will be set to the previously hardcoded values, but the |
938 |
(previously hardcoded) path to the CDROM ISO image will be unset and |
939 |
if required, needs to be set manually with ``gnt-instance modify`` |
940 |
after the upgrade. |
941 |
- The address to which an instance's VNC console is bound is now |
942 |
selectable per-instance, rather than being cluster wide. Of course |
943 |
this only applies to instances controlled via VNC, so currently just |
944 |
applies to HVM clusters. |
945 |
|
946 |
|
947 |
Version 1.2.3 |
948 |
------------- |
949 |
|
950 |
*(Released Mon, 18 Feb 2008)* |
951 |
|
952 |
- more tweaks to the disk activation code (especially helpful for DRBD) |
953 |
- change the default ``gnt-instance list`` output format, now there is |
954 |
one combined status field (see the manpage for the exact values this |
955 |
field will have) |
956 |
- some more fixes for the mac export to hooks change |
957 |
- make Ganeti not break with DRBD 8.2.x (which changed the version |
958 |
format in ``/proc/drbd``) (issue 24) |
959 |
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk |
960 |
template, allowing migration from DRBD0.7+MD to DRBD8 |
961 |
|
962 |
|
963 |
Version 1.2.2 |
964 |
------------- |
965 |
|
966 |
*(Released Wed, 30 Jan 2008)* |
967 |
|
968 |
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM |
969 |
support (issue 23) |
970 |
- add command aliases infrastructure and a few aliases |
971 |
- allow listing of VCPUs in the ``gnt-instance list`` and improve the |
972 |
man pages and the ``--help`` option of ``gnt-node |
973 |
list``/``gnt-instance list`` |
974 |
- fix ``gnt-backup list`` with down nodes (issue 21) |
975 |
- change the tools location (move from $pkgdatadir to $pkglibdir/tools) |
976 |
- fix the dist archive and add a check for including svn/git files in |
977 |
the future |
978 |
- some developer-related changes: improve the burnin and the QA suite, |
979 |
add an upload script for testing during development |
980 |
|
981 |
|
982 |
Version 1.2.1 |
983 |
------------- |
984 |
|
985 |
*(Released Wed, 16 Jan 2008)* |
986 |
|
987 |
- experimental HVM support, read the install document, section |
988 |
"Initializing the cluster" |
989 |
- allow for the PVM hypervisor per-instance kernel and initrd paths |
990 |
- add a new command ``gnt-cluster verify-disks`` which uses a new |
991 |
algorithm to improve the reconnection of the DRBD pairs if the device |
992 |
on the secondary node has gone away |
993 |
- make logical volume code auto-activate LVs at disk activation time |
994 |
- slightly improve the speed of activating disks |
995 |
- allow specification of the MAC address at instance creation time, and |
996 |
changing it later via ``gnt-instance modify`` |
997 |
- fix handling of external commands that generate lots of output on |
998 |
stderr |
999 |
- update documentation with regard to minimum version of DRBD8 supported |
1000 |
|
1001 |
|
1002 |
Version 1.2.0 |
1003 |
------------- |
1004 |
|
1005 |
*(Released Tue, 4 Dec 2007)* |
1006 |
|
1007 |
- Log the ``xm create`` output to the node daemon log on failure (to |
1008 |
help diagnosing the error) |
1009 |
- In debug mode, log all external commands output if failed to the logs |
1010 |
- Change parsing of lvm commands to ignore stderr |
1011 |
|
1012 |
|
1013 |
Version 1.2b3 |
1014 |
------------- |
1015 |
|
1016 |
*(Released Wed, 28 Nov 2007)* |
1017 |
|
1018 |
- Another round of updates to the DRBD 8 code to deal with more failures |
1019 |
in the replace secondary node operation |
1020 |
- Some more logging of failures in disk operations (lvm, drbd) |
1021 |
- A few documentation updates |
1022 |
- QA updates |
1023 |
|
1024 |
|
1025 |
Version 1.2b2 |
1026 |
------------- |
1027 |
|
1028 |
*(Released Tue, 13 Nov 2007)* |
1029 |
|
1030 |
- Change configuration file format from Python's Pickle to JSON. |
1031 |
Upgrading is possible using the cfgupgrade utility. |
1032 |
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for |
1033 |
faster replace disks and is more stable (DRBD 8 has many improvements |
1034 |
compared to DRBD 0.7) |
1035 |
- Added command line tags support (see man pages for ``gnt-instance``, |
1036 |
``gnt-node``, ``gnt-cluster``) |
1037 |
- Added instance rename support |
1038 |
- Added multi-instance startup/shutdown |
1039 |
- Added cluster rename support |
1040 |
- Added ``gnt-node evacuate`` to simplify some node operations |
1041 |
- Added instance reboot operation that can speedup reboot as compared to |
1042 |
stop and start |
1043 |
- Soften the requirement that hostnames are in FQDN format |
1044 |
- The ``ganeti-watcher`` now activates drbd pairs after secondary node |
1045 |
reboots |
1046 |
- Removed dependency on debian's patched fping that uses the |
1047 |
non-standard ``-S`` option |
1048 |
- Now the OS definitions are searched for in multiple, configurable |
1049 |
paths (easier for distros to package) |
1050 |
- Some changes to the hooks infrastructure (especially the new |
1051 |
post-configuration update hook) |
1052 |
- Other small bugfixes |
1053 |
|
1054 |
.. vim: set textwidth=72 : |
1055 |
.. Local Variables: |
1056 |
.. mode: rst |
1057 |
.. fill-column: 72 |
1058 |
.. End: |