[ClusterLabs] [Problem] The SNMP trap which has been already started is transmitted.
Andrew Beekhof
andrew at beekhof.net
Tue Aug 4 07:15:34 CEST 2015
> On 27 Jul 2015, at 4:18 pm, renayama19661014 at ybb.ne.jp wrote:
>
> Hi All,
>
> The transmission of the SNMP trap of crm_mon seems to have a problem.
> I identified a problem on latest Pacemaker and Pacemaker1.1.13.
>
>
> Step 1) I constitute a cluster and send simple CLI file.
>
> [root at snmp1 ~]# crm_mon -1
> Last updated: Mon Jul 27 14:40:37 2015 Last change: Mon Jul 27 14:40:29 2015 by root via cibadmin on snmp1
> Stack: corosync
> Current DC: snmp1 (version 1.1.13-3d781d3) - partition with quorum
> 2 nodes and 1 resource configured
>
> Online: [ snmp1 snmp2 ]
>
> prmDummy (ocf::heartbeat:Dummy): Started snmp1
>
> Step 2) I stop a node of the standby once.
>
> [root at snmp2 ~]# stop pacemaker
> pacemaker stop/waiting
>
>
> Step 3) I start a node of the standby again.
> [root at snmp2 ~]# start pacemaker
> pacemaker start/running, process 2284
>
> Step 4) The indication of crm_mon does not change in particular.
> [root at snmp1 ~]# crm_mon -1
> Last updated: Mon Jul 27 14:45:12 2015 Last change: Mon Jul 27 14:40:29 2015 by root via cibadmin on snmp1
> Stack: corosync
> Current DC: snmp1 (version 1.1.13-3d781d3) - partition with quorum
> 2 nodes and 1 resource configured
>
> Online: [ snmp1 snmp2 ]
>
> prmDummy (ocf::heartbeat:Dummy): Started snmp1
>
>
> In addition, as for the resource that started in snmp1 node, nothing changes.
>
> -------
> Jul 27 14:41:39 snmp1 crmd[29116]: notice: State transition S_IDLE -> S_POLICY_ENGINE [ input=I_PE_CALC cause=C_FSA_INTERNAL origin=abort_transition_graph ]
> Jul 27 14:41:39 snmp1 cib[29111]: info: Completed cib_modify operation for section status: OK (rc=0, origin=snmp1/attrd/11, version=0.4.20)
> Jul 27 14:41:39 snmp1 attrd[29114]: info: Update 11 for probe_complete: OK (0)
> Jul 27 14:41:39 snmp1 attrd[29114]: info: Update 11 for probe_complete[snmp1]=true: OK (0)
> Jul 27 14:41:39 snmp1 attrd[29114]: info: Update 11 for probe_complete[snmp2]=true: OK (0)
> Jul 27 14:41:39 snmp1 cib[29202]: info: Wrote version 0.4.0 of the CIB to disk (digest: a1f1920279fe0b1466a79cab09fa77d6)
> Jul 27 14:41:39 snmp1 pengine[29115]: notice: On loss of CCM Quorum: Ignore
> Jul 27 14:41:39 snmp1 pengine[29115]: info: Node snmp2 is online
> Jul 27 14:41:39 snmp1 pengine[29115]: info: Node snmp1 is online
> Jul 27 14:41:39 snmp1 pengine[29115]: info: prmDummy#011(ocf::heartbeat:Dummy):#011Started snmp1
> Jul 27 14:41:39 snmp1 pengine[29115]: info: Leave prmDummy#011(Started snmp1)
> -------
>
> However, a trap of crm_mon is sent to an SNMP manager.
Are you using the built-in SNMP logic or using -E to give crm_mon a script which is then producing the trap?
(I’m trying to figure out who could be turning the monitor action into a start)
> The resource does not reboot, but the SNMP trap which a resource started is sent.
>
> -------
> Jul 27 14:41:39 SNMP-MANAGER snmptrapd[4521]: 2015-07-27 14:41:39 snmp1 [UDP: [192.168.40.100]:35265->[192.168.40.2]]:#012DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (1437975699) 166 days, 10:22:36.99#011SNMPv2-MIB::snmpTrapOID.0 = OID: PACEMAKER-MIB::pacemakerNotification#011PACEMAKER-MIB::pacemakerNotificationResource = STRING: "prmDummy"#011PACEMAKER-MIB::pacemakerNotificationNode = STRING: "snmp1"#011PACEMAKER-MIB::pacemakerNotificationOperation = STRING: "start"#011PACEMAKER-MIB::pacemakerNotificationDescription = STRING: "OK"#011PACEMAKER-MIB::pacemakerNotificationReturnCode = INTEGER: 0#011PACEMAKER-MIB::pacemakerNotificationTargetReturnCode = INTEGER: 0#011PACEMAKER-MIB::pacemakerNotificationStatus = INTEGER: 0
> Jul 27 14:41:39 SNMP-MANAGER snmptrapd[4521]: 2015-07-27 14:41:39 snmp1 [UDP: [192.168.40.100]:35265->[192.168.40.2]]:#012DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (1437975699) 166 days, 10:22:36.99#011SNMPv2-MIB::snmpTrapOID.0 = OID: PACEMAKER-MIB::pacemakerNotification#011PACEMAKER-MIB::pacemakerNotificationResource = STRING: "prmDummy"#011PACEMAKER-MIB::pacemakerNotificationNode = STRING: "snmp1"#011PACEMAKER-MIB::pacemakerNotificationOperation = STRING: "monitor"#011PACEMAKER-MIB::pacemakerNotificationDescription = STRING: "OK"#011PACEMAKER-MIB::pacemakerNotificationReturnCode = INTEGER: 0#011PACEMAKER-MIB::pacemakerNotificationTargetReturnCode = INTEGER: 0#011PACEMAKER-MIB::pacemakerNotificationStatus = INTEGER: 0
> -------
>
> A difference of CIB occurring by the start stop of the node seems to have a problem.
> By this difference, crm_mon transmits an unnecessary SNMP trap.
> -------
> Jul 27 14:41:39 snmp1 cib[29111]: info: + /cib: @num_updates=19
> Jul 27 14:41:39 snmp1 cib[29111]: info: + /cib/status/node_state[@id='3232238190']: @crm-debug-origin=do_update_resource
> Jul 27 14:41:39 snmp1 cib[29111]: info: ++ /cib/status/node_state[@id='3232238190']/lrm[@id='3232238190']/lrm_resources: <lrm_resource id="prmDummy" type="Dummy" class="ocf" provider="heartbeat"/>
> Jul 27 14:41:39 snmp1 cib[29111]: info: ++ <lrm_rsc_op id="prmDummy_last_0" operation_key="prmDummy_monitor_0" operation="monitor" crm-debug-origin="do_update_resource" crm_feature_set="3.0.10" transition-key="6:6:7:34187f48-1f81-49c8-846e-ff3ed4c8f787" transition-magic="0:7;6:6:7:34187f48-1f81-49c8-846e-ff3ed4c8f787" on_node="snmp2" call-id="5" rc-code="7" op-status="0" interval="0" last-run="1437975699" last-rc-change="1437975699" exec-time="18" queue-ti
> Jul 27 14:41:39 snmp1 cib[29111]: info: ++ </lrm_resource>
> -------
>
> I registered this problem with Bugzilla.
> * http://bugs.clusterlabs.org/show_bug.cgi?id=5245
> * The log attached it to Bugzilla.
>
> Best Regards,
> Hideo Yamauchi.
>
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