On Tue, Aug 24, 2010 at 11:00:29AM -0500, [email protected] wrote: > On Tue, 24 Aug 2010, Dejan Muhamedagic wrote: > > > Hi, > > > > On Mon, Aug 23, 2010 at 12:52:38PM -0500, [email protected] wrote: > >> I have two older desktop pcs that I have set up with drbd, corosync and > >> pacemaker > >> No problems there > >> My hat is off to y'all > >> Great software > >> I have set up the colocation rules so that all apps run on one machine or > >> the other > >> If I break the communication link between them I get split-brain > >> So I figure stonith suicide is my only option > > > > suicide is not an option at all. You need a proper fencing > > device. And you need redundant communication links. > > > > I have no say in the matter > That is what I was given to work with > I think suicide is better that nothing at all > I am just having a bit of trouble getting it to work properly
No wonder. suicide cannot work for split-brain. Think about it. Thanks, Dejan > > Thanks, > > > > Dejan > > > >> When the communication goes down the machine hosting the apps > >> continues to function properly > >> The other machine sort of "hangs" > >> > >> > >> ####################################################################### > >> With good communication link > >> > >> [r...@abctest1 ~]# crm_mon -1 > >> ============ > >> Last updated: Fri Aug 20 16:48:13 2010 > >> Stack: openais > >> Current DC: abctest1 - partition with quorum > >> Version: 1.0.9-89bd754939df5150de7cd76835f98fe90851b677 > >> 2 Nodes configured, 2 expected votes > >> 8 Resources configured. > >> ============ > >> > >> Online: [ abctest1 abctest2 ] > >> > >> Master/Slave Set: ms-drbd0 > >> Masters: [ abctest2 ] > >> Slaves: [ abctest1 ] > >> fs0 (ocf::heartbeat:Filesystem): Started abctest2 > >> apache (ocf::heartbeat:apache): Started abctest2 > >> mysql (ocf::heartbeat:mysql): Started abctest2 > >> tomcat (ocf::heartbeat:tomcat): Started abctest2 > >> clusterip1 (ocf::heartbeat:IPaddr2): Started abctest2 > >> clusterip2 (ocf::heartbeat:IPaddr2): Started abctest2 > >> Clone Set: fencing > >> Started: [ abctest2 abctest1 ] > >> > >> > >> > >> [r...@abctest2 ~]# crm_mon -1 > >> ============ > >> Last updated: Mon Aug 23 12:36:56 2010 > >> Stack: openais > >> Current DC: abctest1 - partition with quorum > >> Version: 1.0.9-89bd754939df5150de7cd76835f98fe90851b677 > >> 2 Nodes configured, 2 expected votes > >> 8 Resources configured. > >> ============ > >> > >> Online: [ abctest1 abctest2 ] > >> > >> Master/Slave Set: ms-drbd0 > >> Masters: [ abctest2 ] > >> Slaves: [ abctest1 ] > >> fs0 (ocf::heartbeat:Filesystem): Started abctest2 > >> apache (ocf::heartbeat:apache): Started abctest2 > >> mysql (ocf::heartbeat:mysql): Started abctest2 > >> tomcat (ocf::heartbeat:tomcat): Started abctest2 > >> clusterip1 (ocf::heartbeat:IPaddr2): Started abctest2 > >> clusterip2 (ocf::heartbeat:IPaddr2): Started abctest2 > >> Clone Set: fencing > >> Started: [ abctest2 abctest1 ] > >> > >> > >> ####################################################################### > >> After links goes down > >> > >> [r...@abctest1 ~]# crm_mon -1 > >> ============ > >> Last updated: Mon Aug 23 12:37:37 2010 > >> Stack: openais > >> Current DC: abctest1 - partition with quorum > >> Version: 1.0.9-89bd754939df5150de7cd76835f98fe90851b677 > >> 2 Nodes configured, 1 expected votes > >> 8 Resources configured. > >> ============ > >> > >> Node abctest2: UNCLEAN (offline) > >> Online: [ abctest1 ] > >> > >> Master/Slave Set: ms-drbd0 > >> Slaves: [ abctest1 ] > >> Stopped: [ drbd0:0 ] > >> Clone Set: fencing > >> Started: [ abctest1 ] > >> Stopped: [ stonith-suicide:0 ] > >> > >> > >> [r...@abctest2 ~]# crm_mon -1 > >> ============ > >> Last updated: Mon Aug 23 12:37:57 2010 > >> Stack: openais > >> Current DC: abctest2 - partition WITHOUT quorum > >> Version: 1.0.9-89bd754939df5150de7cd76835f98fe90851b677 > >> 2 Nodes configured, 2 expected votes > >> 8 Resources configured. > >> ============ > >> > >> Node abctest1: UNCLEAN (offline) > >> Online: [ abctest2 ] > >> > >> Master/Slave Set: ms-drbd0 > >> Masters: [ abctest2 ] > >> Stopped: [ drbd0:1 ] > >> fs0 (ocf::heartbeat:Filesystem): Started abctest2 > >> apache (ocf::heartbeat:apache): Started abctest2 > >> mysql (ocf::heartbeat:mysql): Started abctest2 > >> tomcat (ocf::heartbeat:tomcat): Started abctest2 > >> clusterip1 (ocf::heartbeat:IPaddr2): Started abctest2 > >> clusterip2 (ocf::heartbeat:IPaddr2): Started abctest2 > >> Clone Set: fencing > >> Started: [ abctest2 ] > >> Stopped: [ stonith-suicide:1 ] > >> > >> ####################################################################### > >> At this point abctest1 is "hung" > >> The machine still functions but corosync will not shutdown nor will is > >> reestablish communication after the link is is connected > >> A pkill -9 cocosync is required to bring it down > >> Is the how suicide is supposed to behave > >> > >> Richard > >> _______________________________________________ > >> 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 > > > > -- > _______________________________________________ > 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
