[Pacemaker] Master is restarted when other node comes online

[Andrei Borzenkov]

В Sun, 28 Sep 2014 13:03:08 +0200
emmanuel segura <emi2fast at gmail.com> пишет:

> try to use interleave meta attribute in your clone definition
> 
> http://www.hastexo.com/resources/hints-and-kinks/interleaving-pacemaker-clones
> 

I appreciate if you could elaborate a bit more here. The above link
explains dependencies between two cloned resources. I have single
cloned resource, without any external dependency. I'm afraid I miss how
interleave helps here.

Thank you!

> 2014-09-28 9:56 GMT+02:00 Andrei Borzenkov <arvidjaar at gmail.com>:
> > I have two node cluster with single master/slave resource (replicated
> > database) using pacemaker+openais on SLES11 SP3 (pacemaker
> > 1.1.11-3ca8c3b). I hit weird situation that I did not see before, and
> > I cannot really understand it. Assuming master runs on node A and
> > slave runs on node B. If I stop cluster stack on B (rcopenais stop)
> > and start it again (rcopenais start) master is restarted. Of course
> > this means service interruption. Same happens if I reboot node B. I
> > have crm_report and can provide logs which are required but I wanted
> > first to quickly make sure this is not expected behavior.
> >
> > I have not seen it before, but now when I recall what I tested, it was
> > always simulation of node failure. I did not really tried above
> > scenario.
> >
> > Assuming this is correct behavior - what is the correct procedure to
> > shutdown single node then? It makes it impossible to do any
> > maintenance on slave node.
> >
> > Configuration below:
> >
> > node msksaphana1 \
> >     attributes hana_hdb_vhost="msksaphana1" hana_hdb_site="SITE1"
> > hana_hdb_remoteHost="msksaphana2" hana_hdb_srmode="sync"
> > lpa_hdb_lpt="1411732740"
> > node msksaphana2 \
> >     attributes hana_hdb_vhost="msksaphana2" hana_hdb_site="SITE2"
> > hana_hdb_srmode="sync" hana_hdb_remoteHost="msksaphana1"
> > lpa_hdb_lpt="30"
> > primitive rsc_SAPHanaTopology_HDB_HDB00 ocf:suse:SAPHanaTopology \
> >     params SID="HDB" InstanceNumber="00" \
> >     op monitor interval="10" timeout="600" \
> >     op start interval="0" timeout="600" \
> >     op stop interval="0" timeout="300"
> > primitive rsc_SAPHana_HDB_HDB00 ocf:suse:SAPHana \
> >     params SID="HDB" InstanceNumber="00" PREFER_SITE_TAKEOVER="true"
> > AUTOMATED_REGISTER="true" DUPLICATE_PRIMARY_TIMEOUT="7200" \
> >     op start timeout="3600" interval="0" \
> >     op stop timeout="3600" interval="0" \
> >     op promote timeout="3600" interval="0" \
> >     op monitor timeout="700" role="Master" interval="60" \
> >     op monitor timeout="700" role="Slave" interval="61"
> > primitive rsc_ip_HDB_HDB00 ocf:heartbeat:IPaddr2 \
> >     params ip="10.72.10.64" \
> >     op start timeout="20" interval="0" \
> >     op stop timeout="20" interval="0" \
> >     op monitor interval="10" timeout="20"
> > primitive stonith_IPMI_msksaphana1 stonith:external/ipmi \
> >     params ipmitool="/usr/bin/ipmitool" hostname="msksaphana1"
> > passwd="P at ssw0rd" userid="hacluster" ipaddr="10.72.5.47" \
> >     op stop timeout="15" interval="0" \
> >     op monitor timeout="20" interval="3600" \
> >     op start timeout="20" interval="0" \
> >     meta target-role="Started"
> > primitive stonith_IPMI_msksaphana2 stonith:external/ipmi \
> >     params ipmitool="/usr/bin/ipmitool" hostname="msksaphana2"
> > passwd="P at ssw0rd" userid="hacluster" ipaddr="10.72.5.48" \
> >     op stop timeout="15" interval="0" \
> >     op monitor timeout="20" interval="3600" \
> >     op start timeout="20" interval="0" \
> >     meta target-role="Started"
> > ms msl_SAPHana_HDB_HDB00 rsc_SAPHana_HDB_HDB00 \
> >     meta clone-max="2" clone-node-max="1" target-role="Started"
> > clone cln_SAPHanaTopology_HDB_HDB00 rsc_SAPHanaTopology_HDB_HDB00 \
> >     meta is-managed="true" clone-node-max="1" target-role="Started"
> > location stonoth_IPMI_msksaphana1_on_msksaphana2
> > stonith_IPMI_msksaphana1 -inf: msksaphana1
> > location stonoth_IPMI_msksaphana2_on_msksaphana1
> > stonith_IPMI_msksaphana2 -inf: msksaphana2
> > colocation col_saphana_ip_HDB_HDB00 2000: rsc_ip_HDB_HDB00:Started
> > msl_SAPHana_HDB_HDB00:Master
> > order ord_SAPHana_HDB_HDB00 2000: cln_SAPHanaTopology_HDB_HDB00
> > msl_SAPHana_HDB_HDB00
> > property $id="cib-bootstrap-options" \
> >     stonith-enabled="true" \
> >     placement-strategy="balanced" \
> >     dc-version="1.1.11-3ca8c3b" \
> >     cluster-infrastructure="classic openais (with plugin)" \
> >     expected-quorum-votes="2" \
> >     stonith-action="reboot" \
> >     no-quorum-policy="ignore" \
> >     last-lrm-refresh="1411730405"
> > rsc_defaults $id="rsc-options" \
> >     resource-stickiness="1" \
> >     migration-threshold="3"
> > op_defaults $id="op-options" \
> >     timeout="600" \
> >     record-pending="true"
> >
> > Thank you!
> >
> > -andrei
> >
> > _______________________________________________
> > Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> >
> > Project Home: http://www.clusterlabs.org
> > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> > Bugs: http://bugs.clusterlabs.org
> 
> 
>