[Pacemaker] error: send_cpg_message: Sending message via cpg FAILED: (rc=6) Try again

[Jan Friesse]

Brian J. Murrell (brian) napsal(a):
> I seem to have another instance where pacemaker fails to exit at the end
> of a shutdown.  Here's the log from the start of the "service pacemaker
> stop":
> 
> Dec  3 13:00:39 wtm-60vm8 crmd[14076]:   notice: do_state_transition: State transition S_POLICY_ENGINE -> S_TRANSITION_ENGINE [ input=I_PE_SUCCESS cause=C_IPC_MESSAGE origin=handle_response ]
> Dec  3 13:00:39 wtm-60vm8 crmd[14076]:     info: do_te_invoke: Processing graph 19 (ref=pe_calc-dc-1386093636-83) derived from /var/lib/pengine/pe-input-40.bz2

...

> Dec  3 13:05:08 wtm-60vm8 pacemakerd[14067]:    error: send_cpg_message: Sending message via cpg FAILED: (rc=6) Try again
> Dec  3 13:05:08 wtm-60vm8 pacemakerd[14067]:   notice: pcmk_shutdown_worker: Shutdown complete
> Dec  3 13:05:08 wtm-60vm8 pacemakerd[14067]:     info: main: Exiting pacemakerd
> 
> These types of shutdown failure issues seem to always end up with the series of:
> 
> error: send_cpg_message: Sending message via cpg FAILED: (rc=6) Try again
> 
> Even though the above messages seem to indicate that pacemaker did
> finally exit it did not as can be seen looking at the process table:
> 
> 14032 ?        Ssl    0:01 corosync
> 14067 ?        S      0:00 pacemakerd
> 14071 ?        Ss     0:00  \_ /usr/libexec/pacemaker/cib
> 
> So what does this "sending message via cpg FAILED: (rc=6)" mean exactly?
> 

Error 6 error means "try again". This is happening ether if corosync is
overloaded or creating new membership. Please take a look to
/var/log/cluster/corosync.log if you see something strange there (+ make
sure you have newest corosync).

Regards,
  Honza

> Or any other ideas what happened to this shutdown to cause it to fail/hang ultimately?
> 
> Cheers,
> b.
> 
> 
> 
> 
> 
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