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<p class="MsoNormal"><span style="color:#1F3864">Hi ,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">I am using Pacemaker/Corosync on RHEL 7.4 where facing the below issue randomly.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">The corosync reforms the membership randomly even though the service was not restarted.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">I could observe the below log in the messages file before corosync reforms the membership,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">Log:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU24: Package temperature above threshold, cpu clock throttled (total events = 3295347)<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU0: Package temperature above threshold, cpu clock throttled (total events = 3295402)<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU5: Package temperature above threshold, cpu clock throttled (total events = 3295376)<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU6: Core temperature/speed normal<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU27: Package temperature/speed normal<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU3: Package temperature/speed normal<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU28: Package temperature/speed normal<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU4: Package temperature/speed normal<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU30: Package temperature/speed normal<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU6: Package temperature/speed normal<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 kernel: CPU24: Package temperature/speed normal<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 corosync[30924]: [MAIN ] Corosync main process was not scheduled for 1684.8511 ms (threshold is 800.0000 ms). Consider token timeout increase.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 corosync[30924]: [VOTEQ ] waiting for quorum device Qdevice poll (but maximum for 30000 ms)<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 corosync[30924]: [TOTEM ] A new membership (10.61.198.210:11924) was formed. Members<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F3864">May 9 18:02:15 node2 corosync[30924]: [QUORUM] Members[2]: 1<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">Is there any relation between the CPU clock throttling and corosync membership .<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#2F5496"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">With Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">Somanath Thilak J<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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