[ClusterLabs] Corosync 2.4.0 is available at corosync.org!

[Tomas Jelinek]

Dne 30.6.2016 v 18:31 Digimer napsal(a):
> On 30/06/16 12:28 PM, Jan Friesse wrote:
>> I am pleased to announce the latest release of Corosync
>> 2.4.0 available immediately from our website at
>> http://build.clusterlabs.org/corosync/releases/.
>>
>> This release is mostly about long awaited QDevice feature and few rather
>> small fixes.
>
> Woot! :D

Pcs CLI supports Qdevice starting upstream version pcs-0.9.153 which is 
available as of now.

>
>> Qdevice is complete rewrite of old cman qdisk using network arbiter
>> (instead of disk) so it's very similar to Linux HA quorum daemon/HP
>> Serviceguard Quorum Server/...
>>
>> Qdevice currently consists of two daemons:
>>
>> - corosync-qdevice is a daemon running on each node of a cluster. It
>> provides a configured number of votes to the quorum subsystem based  on
>> a third-party arbitrator’s decision. Its primary use is to allow a
>> cluster to sustain more node failures than standard quorum rules allow.
>> It is recommended  for  clusters  with an even number of nodes and
>> highly recommended for 2 node clusters.
>>
>> - corosync-qnetd is a daemon running outside of the cluster with the
>> purpose of providing a vote to the  corosync-qdevice model net. It’s
>> designed to support multiple clusters and be almost configuration and
>> state free. New clusters are handled dynamically and  no  configuration
>> file exists. It’s also able to run as non-root user - which is
>> recommended. Connection between the corosync-qdevice model net client
>> can be optionally configured with TLS client certificate checking. The
>> communication protocol between server and client is designed to be very
>> simple and allow backwards compatibility.
>>
>> To compile corosync-qdevice/corosync-qnetd, configure.sh has to be
>> invoked with --enable-qdevices/--enable-qnetd switches.
>>
>> To find out how to configure qdevice/qnetd take a look to man pages
>> corosync-qdevice (8) and corosync-qnetd (8).
>>
>> Please note that because of required changes in votequorum,
>> libvotequorum is no longer binary compatible. This is reason for version
>> bump.
>>
>> Starting with this release 2.3 branch becomes unsupported and officially
>> supported Needle is 2.4 branch. Just a note, this doesn't affect support
>> of Flatiron where nothing changes and 1.4 branch is still supported.
>>
>> Changelog for fixes for 2.4.0 (qdevices commits not included):
>>
>> Ferenc Wágner (8):
>>        cmap_track_add.3.in: fix typo: bellow -> below
>>        Fix typo: funtion -> function
>>        Fix typo: interger -> integer
>>        Fix typo: Uknown -> Unknown
>>        Fix typo: aquire -> acquire
>>        Fix typo: retrive -> retrieve
>>        Fix typo: alocated -> allocated
>>        Fix typo: Diabled -> disabled
>>
>> Jan Friesse (1):
>>        config: get_cluster_mcast_addr error is not fatal
>>
>> bliu (1):
>>        low:typo fix in sam.h
>>
>> Upgrade is (more than usually) highly recommended.
>>
>> Thanks/congratulations to all people that contributed to achieve this
>> great milestone.
>>
>>
>> _______________________________________________
>> Users mailing list: Users at clusterlabs.org
>> http://clusterlabs.org/mailman/listinfo/users
>>
>> Project Home: http://www.clusterlabs.org
>> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>> Bugs: http://bugs.clusterlabs.org
>
>