Hello, We are using Pacemaker to manage the services that run on a node, as part of a service management framework, and manage the nodes running the services as a cluster. One service will be running as 1+1 and other services with be N+1.
During our testing, we see that the pacemaker processes are taking about 10-15% of the CPU. We would like to know if this is normal and could the CPU utilization be minimised. Sample Output of most used CPU process in a Active Manager is USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND 189 15766 30.4 0.0 94616 12300 ? Ss 18:01 48:15 /usr/libexec/pacemaker/cib 189 15770 28.9 0.0 118320 20276 ? Ss 18:01 45:53 /usr/libexec/pacemaker/pengine root 15768 2.6 0.0 76196 3420 ? Ss 18:01 4:12 /usr/libexec/pacemaker/lrmd root 15767 15.5 0.0 95380 5764 ? Ss 18:01 24:33 /usr/libexec/pacemaker/stonithd USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND 189 15766 30.5 0.0 94616 12300 ? Ss 18:01 49:58 /usr/libexec/pacemaker/cib 189 15770 29.0 0.0 122484 20724 ? Rs 18:01 47:29 /usr/libexec/pacemaker/pengine root 15768 2.6 0.0 76196 3420 ? Ss 18:01 4:21 /usr/libexec/pacemaker/lrmd root 15767 15.5 0.0 95380 5764 ? Ss 18:01 25:25 /usr/libexec/pacemaker/stonithd We also observed that the processes are not distributed equally to all the available cores and saw that Redhat acknowledging that rhel doesn't distribute to the available cores efficiently. We are trying to use IRQbalance to spread the processes to the available cores equally. Please let us know if there is any way we could minimise the CPU utilisation. We dont require stonith feature, but there is no way stop that daemon from running to our knowledge. If that is also possible, please let us know. Thanks, Karthik. _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
