<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=HU link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We are building a new cluster on top of pacemaker/corosync and several times during the past days we noticed that „crm_mon -Af” used up all the memory+swap and caused high CPU usage. Killing the process solves the issue.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We are using the binary package versions available in the latest ubuntu trusty, namely:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>crmsh 1.2.5+hg1034-1ubuntu4 <o:p></o:p></p><p class=MsoNormal>pacemaker 1.1.10+git20130802-1ubuntu2.3 <o:p></o:p></p><p class=MsoNormal>pacemaker-cli-utils 1.1.10+git20130802-1ubuntu2.3 <o:p></o:p></p><p class=MsoNormal>corosync 2.3.3-1ubuntu1 <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Kernel is 3.13.0-46-generic<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Looking back some „atop” data, the CPU went to 100% many times during the last couple of days, at various times, more often around midnight exaclty (strange).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>08.05 14:00<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>08.06 21:41<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>08.07 00:00<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>08.07 00:00<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>08.08 00:00<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>08.09 06:27<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Checked the corosync log and syslog, but did not find any correlation between the entries int he logs around the specific times.<o:p></o:p></p><p class=MsoNormal>For most of the time, the node running the crm_mon was the DC as well – not running any resources (e.g. a pairless node for quorum).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We have another running system, where everything works perfecly, whereas it is almost the same:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>crmsh 1.2.5+hg1034-1ubuntu4 <o:p></o:p></p><p class=MsoNormal>pacemaker 1.1.10+git20130802-1ubuntu2.1 <o:p></o:p></p><p class=MsoNormal>pacemaker-cli-utils 1.1.10+git20130802-1ubuntu2.1 <o:p></o:p></p><p class=MsoNormal>corosync 2.3.3-1ubuntu1 <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Kernel is 3.13.0-8-generic<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Is this perhaps a known issue? Any hints?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks!<o:p></o:p></p></div></body></html>