QDisk ping heuristic timing out even though it uses a -w deadline in RHEL 5 or 6 High Availability cluster
Issue
- QDisk ping heuristic timing out even though it uses a -w deadline in RHEL 5
Heuristic: 'ping -w4 -c3 -t2 10.96.66.1' DOWN - Exceeded timeout of 10 seconds
- cluster node gets rebooted by
qdiskd
after theping
heuristic fails.
Environment
- Red Hat Enterprise Linux (RHEL) 5 with the High Availability Add On
- Cluster utilizing a quorum disk (
<quorumd>
tag in/etc/cluster/cluster.conf
) - Ping heuristic in
/etc/cluster/cluster.conf
that uses -w
<quorumd device="/dev/mapper/mpath6p1" interval="5" min_score="1" tko="3" votes="1" log_level="7" log_facility="local4">
<heuristic interval="2" program="ping -w4 -c3 -t2 10.96.66.1" score="1" tko="4"/>
</quorumd>
- If the ping heuristic does not already use the -w option, see this solution.
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