Hi all,
as discussed two days ago on IRC, since that the 1.0.9 version had some
problems with multistate resources and groups, I'm trying to make sets work.
I started from this configuration:
group cluster cluster-fs cluster-jboss
ms cluster-ms-r0 cluster-r0 \
meta master-max="1" master-node-max="1" clone-max="2"
clone-node-max="1" notify="true"
colocation cluster_on_cluster-r0 inf: cluster cluster-ms-r0:Master
order cluster_after_cluster-r0 inf: cluster-ms-r0:promote cluster-fs:start
But, as i said, there's a bug in this version of Pacemaker, so the
solution is to treat every single resource. Thanks to the IRC guys match
and andreask I find out a solution using sets, in this way:
ms cluster-ms-r0 cluster-r0 \
meta master-max="1" master-node-max="1" clone-max="2"
clone-node-max="1" notify="true"
colocation cluster-fs_on_cluster-r0 inf: ( cluster-jboss ) ( cluster-fs
) cluster-ms-r0:Master
order cluster-fs_after_cluster-r0 inf: cluster-ms-r0:promote (
cluster-fs:start ) ( cluster-jboss:start )
Everything works fine. But I have two questions:
1) what's the difference between the declaration with sets that is over
there and this one:
ms cluster-ms-r0 cluster-r0 \
meta master-max="1" master-node-max="1" clone-max="2"
clone-node-max="1" notify="true"
colocation cluster-fs_on_cluster-r0 inf: cluster-jboss cluster-fs
cluster-ms-r0:Master
order cluster-fs_after_cluster-r0 inf: cluster-ms-r0:promote
cluster-fs:start cluster-jboss:start
In this way the resources comes up all the same time? Note: this does
not worked for me, of course.
2) Using sets it is also possible to declare groups just for logical
purpose (and for the output of crm_mon), without using them in
colocation and order declaration? Does the creation of a group make some
changes in the resources relations?
Thanks a lot!
--
RaSca
Mia Mamma Usa Linux: Niente รจ impossibile da capire, se lo spieghi bene!
[email protected]
http://www.miamammausalinux.org
_______________________________________________
Linux-HA mailing list
[email protected]
http://lists.linux-ha.org/mailman/listinfo/linux-ha
See also: http://linux-ha.org/ReportingProblems
