[Pacemaker] Exiting corosync-notifyd results in shutting downof pacemakerd

[Grüninger, Andreas (LGL Extern)]

>> Is this an error or the desired result?

>Based on the logs, pacemaker thinks corosync died.  Did that happen?
>If so there is not much pacemaker can do :-( 

And that is absolutely ok when corosync dies.
Corosync does not die but is still healthy.
It is corosync-notifyd which is started additionally to corosync as a separate process and which is finished with kill as daemon or with ctrl-c as foreground process.
The job of corosync-notifyd is sending of SNMP traps.
This is the functionality of crm_mon -C .. -S ... for pacemaker.

So corosync-notifyd sends the wrong signal or pacemaker does a little bit too much.
Pacemaker should just ignore this ending connection.
Is there a chance in pacemaker or should should this better solved in corosync/corosync-notifyd?

Andreas

-----Ursprüngliche Nachricht-----
Von: Andrew Beekhof [mailto:andrew at beekhof.net] 
Gesendet: Mittwoch, 3. Oktober 2012 01:09
An: The Pacemaker cluster resource manager
Betreff: Re: [Pacemaker] Exiting corosync-notifyd results in shutting downof pacemakerd

On Wed, Oct 3, 2012 at 2:51 AM, Grüninger, Andreas (LGL Extern) <Andreas.Grueninger at lgl.bwl.de> wrote:
> I am currently investigating the monitoring of corosync/pacemaker with snmp.
> crm_mon used with the OCF resource ClusterMon works as it should.
>
> But corosync-notifyd can't be used in our case.
> I start corosync-notifyd in the foreground as follows corosync-notifyd 
> -f -l -s  -m 10.50.235.1
>
> When I stop the running corosync-notifyd with CTRL-C, pacemaker shuts down with the following entries in the logfile.
> Is this an error or the desired result?

Based on the logs, pacemaker thinks corosync died.  Did that happen?
If so there is not much pacemaker can do :-(

>
> ....
> Oct 02 18:42:19 [27126] pacemakerd:    error: cfg_connection_destroy:   Connection destroyed
> Oct 02 18:42:19 [27126] pacemakerd:   notice: pcmk_shutdown_worker:     Shuting down Pacemaker
> Oct 02 18:42:19 [27126] pacemakerd:   notice: stop_child:       Stopping crmd: Sent -15 to process 27177
> Oct 02 18:42:19 [27126] pacemakerd:    error: cpg_connection_destroy:   Connection destroyed
> Oct 02 18:42:19 [27177]       crmd:     info: crm_signal_dispatch:      Invoking handler for signal 15: Terminated
> Oct 02 18:42:19 [27177]       crmd:   notice: crm_shutdown:     Requesting shutdown, upper limit is 1200000ms
> Oct 02 18:42:19 [27128] stonith-ng:    error: pcmk_cpg_dispatch:        Connection to the CPG API failed: 2
> Oct 02 18:42:19 [27177]       crmd:     info: do_shutdown_req:  Sending shutdown request to zd-sol-s1-v61
> Oct 02 18:42:19 [27128] stonith-ng:    error: stonith_peer_ais_destroy:         AIS connection terminated
> Oct 02 18:42:19 [27128] stonith-ng:     info: stonith_shutdown:         Terminating with  1 clients
> Oct 02 18:42:19 [27130]      attrd:    error: pcmk_cpg_dispatch:        Connection to the CPG API failed: 2
> Oct 02 18:42:19 [27130]      attrd:     crit: attrd_ais_destroy:        Lost connection to Corosync service!
> Oct 02 18:42:19 [27130]      attrd:   notice: main:     Exiting...
> Oct 02 18:42:19 [27130]      attrd:   notice: main:     Disconnecting client 81ffc38, pid=27177...
> Oct 02 18:42:19 [27128] stonith-ng:     info: qb_ipcs_us_withdraw:      withdrawing server sockets
> Oct 02 18:42:19 [27128] stonith-ng:     info: crm_xml_cleanup:  Cleaning up memory from libxml2
> Oct 02 18:42:19 [27130]      attrd:    error: attrd_cib_connection_destroy:     Connection to the CIB terminated...
> Oct 02 18:42:19 [27127]        cib:    error: pcmk_cpg_dispatch:        Connection to the CPG API failed: 2
> Oct 02 18:42:19 [27127]        cib:    error: cib_ais_destroy:  Corosync connection lost!  Exiting.
> Oct 02 18:42:19 [27129]       lrmd:     info: lrmd_ipc_destroy:         LRMD client disconnecting 807e768 - name: crmd id: 1d659f61-d6e2-4ef3-f674-b9a8ba8029e8
> Oct 02 18:42:19 [27127]        cib:     info: terminate_cib:    cib_ais_destroy: Exiting fast...
> Oct 02 18:42:19 [27127]        cib:     info: qb_ipcs_us_withdraw:      withdrawing server sockets
> Oct 02 18:42:19 [27127]        cib:     info: qb_ipcs_us_withdraw:      withdrawing server sockets
> Oct 02 18:42:19 [27127]        cib:     info: qb_ipcs_us_withdraw:      withdrawing server sockets
> Oct 02 18:42:19 [27126] pacemakerd:    error: pcmk_child_exit:  Child process attrd exited (pid=27130, rc=1)
> Oct 02 18:42:19 [27126] pacemakerd:    error: send_cpg_message:         Sending message via cpg FAILED: (rc=9) Bad handle
> Oct 02 18:42:19 [27126] pacemakerd:    error: pcmk_child_exit:  Child process cib exited (pid=27127, rc=64)
> Oct 02 18:42:19 [27126] pacemakerd:    error: send_cpg_message:         Sending message via cpg FAILED: (rc=9) Bad handle
> Oct 02 18:42:19 [27126] pacemakerd:   notice: pcmk_child_exit:  Child process crmd terminated with signal 13 (pid=27177, core=0)
> Oct 02 18:42:19 [27126] pacemakerd:    error: send_cpg_message:         Sending message via cpg FAILED: (rc=9) Bad handle
> Oct 02 18:42:19 [27126] pacemakerd:   notice: stop_child:       Stopping pengine: Sent -15 to process 27131
> Oct 02 18:42:19 [27126] pacemakerd:     info: pcmk_child_exit:  Child process pengine exited (pid=27131, rc=0)
> Oct 02 18:42:19 [27126] pacemakerd:    error: send_cpg_message:         Sending message via cpg FAILED: (rc=9) Bad handle
> Oct 02 18:42:19 [27126] pacemakerd:   notice: stop_child:       Stopping lrmd: Sent -15 to process 27129
> Oct 02 18:42:19 [27129]       lrmd:     info: crm_signal_dispatch:      Invoking handler for signal 15: Terminated
> Oct 02 18:42:19 [27129]       lrmd:     info: lrmd_shutdown:    Terminating with  0 clients
> Oct 02 18:42:19 [27129]       lrmd:     info: qb_ipcs_us_withdraw:      withdrawing server sockets
> Oct 02 18:42:19 [27126] pacemakerd:     info: pcmk_child_exit:  Child process lrmd exited (pid=27129, rc=0)
> Oct 02 18:42:19 [27126] pacemakerd:    error: send_cpg_message:         Sending message via cpg FAILED: (rc=9) Bad handle
> Oct 02 18:42:19 [27126] pacemakerd:   notice: stop_child:       Stopping stonith-ng: Sent -15 to process 27128
> Oct 02 18:42:19 [27126] pacemakerd:   notice: pcmk_child_exit:  Child process stonith-ng terminated with signal 11 (pid=27128, core=128)
> Oct 02 18:42:19 [27126] pacemakerd:    error: send_cpg_message:         Sending message via cpg FAILED: (rc=9) Bad handle
> Oct 02 18:42:19 [27126] pacemakerd:   notice: pcmk_shutdown_worker:     Shutdown complete
> Oct 02 18:42:19 [27126] pacemakerd:     info: qb_ipcs_us_withdraw:      withdrawing server sockets
> Oct 02 18:42:19 [27126] pacemakerd:     info: main:     Exiting pacemakerd
>
> Andreas
>
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