`service cman start` is hanging at "Starting fencing..." after making changes to sysctl's kernel.shm* in RHEL 5
Issue
- What is the reason cman service is hanging at "starting fencing..." after making changes in
sysctl.confas part of DB tuning ? - Cluster manager service start is hang at "Starting Fencing ..."
# service cman start
Starting cluster:
Loading modules... done
Mounting configfs... done
Starting ccsd... done
Starting cman... done
Starting daemons... done
Starting fencing...
Environment
- Red Hat Enterprise Linux 5 with the High Availability Add On
- Any of the following sysctl tunables modified lower than their defaults:
kernel.shmmaxkernel.shmminkernel.shmall
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