Hello,
on a two node cluster with CentOS 6.3 I set this in cluster.conf for testing
<logging>
<!-- turning on per-subsystem debug logging -->
<logging_daemon debug="on" name="corosync"/>
<logging_daemon debug="on" name="fenced"/>
<logging_daemon debug="on" name="qdiskd"/>
<logging_daemon debug="on" name="rgmanager"/>
<logging_daemon debug="on" name="dlm_controld"/>
<logging_daemon debug="on" name="gfs_controld"/>
</logging>
Then I cut the intra cluster lan and only when the configured totem token timeset expires I get inside messages
corosync[11945]: [TOTEM ] A processor failed, forming new configuration.
corosync[11945]: [QUORUM] Members[1]: 1
corosync[11945]: [TOTEM ] A processor joined or left the membership and a new membership was formed.
with every node trying to fence the other one.
Where can I find messages during this delay (from cut time to token expired time) that let me know that the nodes are not communicating via the intracluster lan?
I presume /var/log/cluster/corosync.log, but this file with debugging on is very verbose and it is not so clear to me how to pinpoint the lines describing that I'm having a problem ....
Thanks in advance,
Gianluca
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