[Pacemaker] Call cib_query failed (-41): Remote node did not respond

[Brian J. Murrell]

So, I have an 18 node cluster here (so a small haystack, indeed, but
still a haystack in which to try to find a needle) where a certain
set of (yet unknown, figuring that out is part of this process)
operations are pooching pacemaker.  The symptom is that on one or
more nodes I get the following kinds of errors:

# cibadmin -Q
Call cib_query failed (-41): Remote node did not respond

along with similar things in the log:

Jun 26 19:51:38 iu-18 crmd: [19119]: WARN: cib_rsc_callback: Resource update 7 failed: (rc=-41) Remote node did not respond
Jun 26 19:51:38 iu-18 crmd: [19119]: WARN: cib_rsc_callback: Resource update 8 failed: (rc=-41) Remote node did not respond
Jun 26 19:51:38 iu-18 crmd: [19119]: WARN: cib_rsc_callback: Resource update 9 failed: (rc=-41) Remote node did not respond
Jun 26 19:51:38 iu-18 crmd: [19119]: WARN: cib_rsc_callback: Resource update 10 failed: (rc=-41) Remote node did not respond
Jun 26 19:51:39 iu-18 crmd: [19119]: WARN: cib_rsc_callback: Resource update 11 failed: (rc=-41) Remote node did not respond

Clearly some node in the cluster has a problem, but nothing in any
of these messages is helping me figure out which one it is.

Any hints on how I figure out which node this "iu-18" node is having
problems communicating with?

Cheers,
b.

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