On Sat, Jul 16, 2011 at 7:31 PM, Willi Fehler <[email protected]> wrote: > Hi, > > I've installed a Pacemaker/OpenAIS/Corosync/DRBD/MySQL Cluster on > CentOS6. (VirtualBox) > If I start both nodes at the same time, I always get a split brain
"Split brain" as in, corosync on the two nodes can't talk to one another? > situation, If I start > on node and wait if the node is promoted to DRBD-Master everything is > working. How can I tell Pacemaker which node always become master? a location constraint with role=Master > > [root@linsrv001 ~]# crm configure show > node linsrv001.willi-net.local > node linsrv002.willi-net.local > primitive drbd_mysql ocf:linbit:drbd \ > params drbd_resource="r0" \ > op monitor interval="15s" > primitive fs_mysql ocf:heartbeat:Filesystem \ > params device="/dev/drbd/by-res/r0" directory="/var/lib/mysql" > fstype="xfs" > primitive ip_mysql ocf:heartbeat:IPaddr2 \ > params ip="192.168.2.92" nic="eth0" > primitive mysqld lsb:mysql > group mysql fs_mysql ip_mysql mysqld > ms ms_drbd_mysql drbd_mysql \ > meta master-max="1" master-node-max="1" clone-max="2" > clone-node-max="1" notify="true" > location cli-prefer-mysql mysql \ > rule $id="cli-prefer-rule-mysql" inf: #uname eq > linsrv001.willi-net.local > colocation mysql_on_drbd inf: mysql ms_drbd_mysql:Master > order mysql_after_drbd inf: ms_drbd_mysql:promote mysql:start > property $id="cib-bootstrap-options" \ > dc-version="1.1.2-f059ec7ced7a86f18e5490b67ebf4a0b963bccfe" \ > cluster-infrastructure="openais" \ > expected-quorum-votes="2" \ > no-quorum-policy="ignore" \ > stonith-enabled="false" > > My second question is, what happens If one node fails and I have to > setup the hole node again. If I start OpenAIS/Corosync, what happens > with the CIB?(will the cluster information configuration will be > transfered to the node?) > > Regards - Willi > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems > _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
