Hi All, We confirmed that lrmd caused the time-out of the monitor when the time of the system was revised. When a system considers revision of the time when I used ntpd, it is a problem very much.
We can confirm this problem in the next procedure. Step1) Start Pacemaker in a single node. [root@snmp1 ~]# start pacemaker.combined pacemaker.combined start/running, process 11382 Step2) Send simple crm. --------trac2915-3.crm------------ primitive prmDummyA ocf:pacemaker:Dummy1 \ op start interval="0s" timeout="60s" on-fail="restart" \ op monitor interval="10s" timeout="30s" on-fail="restart" \ op stop interval="0s" timeout="60s" on-fail="block" group grpA prmDummyA location rsc_location-grpA-1 grpA \ rule $id="rsc_location-grpA-1-rule" 200: #uname eq snmp1 \ rule $id="rsc_location-grpA-1-rule-0" 100: #uname eq snmp2 property $id="cib-bootstrap-options" \ no-quorum-policy="ignore" \ stonith-enabled="false" \ crmd-transition-delay="2s" rsc_defaults $id="rsc-options" \ resource-stickiness="INFINITY" \ migration-threshold="1" ---------------------------------- [root@snmp1 ~]# crm configure load update trac2915-3.crm WARNING: rsc_location-grpA-1: referenced node snmp2 does not exist [root@snmp1 ~]# crm_mon -1 -Af Last updated: Fri Sep 5 13:09:45 2014 Last change: Fri Sep 5 13:09:13 2014 Stack: corosync Current DC: snmp1 (3232238180) - partition WITHOUT quorum Version: 1.1.12-561c4cf 1 Nodes configured 1 Resources configured Online: [ snmp1 ] Resource Group: grpA prmDummyA (ocf::pacemaker:Dummy1): Started snmp1 Node Attributes: * Node snmp1: Migration summary: * Node snmp1: Step3) After the monitor of the resource just began, we push forward time than the timeout(timeout="30s") of the monitor. [root@snmp1 ~]# date -s +40sec Fri Sep 5 13:11:04 JST 2014 Step4) The time-out of the monitor occurs. [root@snmp1 ~]# crm_mon -1 -Af Last updated: Fri Sep 5 13:11:24 2014 Last change: Fri Sep 5 13:09:13 2014 Stack: corosync Current DC: snmp1 (3232238180) - partition WITHOUT quorum Version: 1.1.12-561c4cf 1 Nodes configured 1 Resources configured Online: [ snmp1 ] Node Attributes: * Node snmp1: Migration summary: * Node snmp1: prmDummyA: migration-threshold=1 fail-count=1 last-failure='Fri Sep 5 13:11:04 2014' Failed actions: prmDummyA_monitor_10000 on snmp1 'unknown error' (1): call=7, status=Timed Out, last-rc-change='Fri Sep 5 13:11:04 2014', queued=0ms, exec=0ms I confirmed some problems, but seem to be caused by the fact that an event occurs somehow or other in g_main_loop of lrmd in the period when it is shorter than a monitor. This problem does not seem to happen somehow or other in lrmd of PM1.0. Best Regards, Hideo Yamauchi. _______________________________________________ Pacemaker mailing list: [email protected] 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
