<div dir="ltr">can u look at the files under /var/lib/pacemaker/pengine<div>these files are generated at periodic intervals.. From these u can know the reason.</div><div>Are the CPU levels continuously high?</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Oct 30, 2015 at 3:01 PM, Karthik <span dir="ltr"><<a href="mailto:Karthikeyan.Ramasamy@ericsson.com" target="_blank">Karthikeyan.Ramasamy@ericsson.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
We are using Pacemaker to manage the services that run on a node, as part<br>
of a service management framework, and manage the nodes running the services<br>
as a cluster. One service will be running as 1+1 and other services with be<br>
N+1.<br>
<br>
During our testing, we see that the pacemaker processes are taking about<br>
10-15% of the CPU. We would like to know if this is normal and could the<br>
CPU utilization be minimised.<br>
<br>
Sample Output of most used CPU process in a Active Manager is<br>
<br>
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND<br>
189 15766 30.4 0.0 94616 12300 ? Ss 18:01 48:15<br>
/usr/libexec/pacemaker/cib<br>
189 15770 28.9 0.0 118320 20276 ? Ss 18:01 45:53<br>
/usr/libexec/pacemaker/pengine<br>
root 15768 2.6 0.0 76196 3420 ? Ss 18:01 4:12<br>
/usr/libexec/pacemaker/lrmd<br>
root 15767 15.5 0.0 95380 5764 ? Ss 18:01 24:33<br>
/usr/libexec/pacemaker/stonithd<br>
<br>
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND<br>
189 15766 30.5 0.0 94616 12300 ? Ss 18:01 49:58<br>
/usr/libexec/pacemaker/cib<br>
189 15770 29.0 0.0 122484 20724 ? Rs 18:01 47:29<br>
/usr/libexec/pacemaker/pengine<br>
root 15768 2.6 0.0 76196 3420 ? Ss 18:01 4:21<br>
/usr/libexec/pacemaker/lrmd<br>
root 15767 15.5 0.0 95380 5764 ? Ss 18:01 25:25<br>
/usr/libexec/pacemaker/stonithd<br>
<br>
<br>
We also observed that the processes are not distributed equally to all the<br>
available cores and saw that Redhat acknowledging that rhel doesn't<br>
distribute to the available cores efficiently. We are trying to use<br>
IRQbalance to spread the processes to the available cores equally.<br>
<br>
Please let us know if there is any way we could minimise the CPU<br>
utilisation. We dont require stonith feature, but there is no way stop that<br>
daemon from running to our knowledge. If that is also possible, please let<br>
us know.<br>
<br>
Thanks,<br>
Karthik.<br>
<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">OSS BSS Developer<br>Hand Phone: 9860788344<br><img src="https://mail.google.com/mail/photos/img/photos/private/AIbEiAIAAABDCPWG06bwibP4GCILdmNhcmRfcGhvdG8qKDc1OTY1MmI0ZGVkZGU0NjExODFkNzhlODE3ZjRhNDgyOTBmYTliZDEwAcB3BFXyQcb1eEOT9WP_uMnfTiml" alt="Picture"><br></div>
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