Zimbra 7.2.6 - slow/unresponsive server, cpu usage pegged over 100%
Periodically, I have to `zmcontrol restart` as the server becomes unresponsive. The Zimbra web interface is slow and times out. Restarting the service cures this. I have only seen this since upgrading to 7.2.6. I'm aware 7.2.7 is available and I will schedule an upgrade but I do not see anything in the 7.2.7 release notes under "major issues" or otherwise which might relate to this issue.
This is the process from `ps aux` which seems to be causing the issues:
zimbra 10589 10.2 17.3 4565328 4286500 ? Sl May30 9915:14 /opt/zimbra/java/bin/java -Dfile.encoding=UTF-8 -server -XX:NewRatio=2 -Djava.awt.headless=true -XX:MaxPermSize=128m -XX:SoftRefLRUPolicyMSPerMB=1 -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationStoppedTime -XX:+UseConcMarkSweepGC -XX:PermSize=128m -XX:-OmitStackTraceInFastThrow -Xss256k -Dsun.net.inetaddr.ttl=60 -Xms3594m -Xmx3594m -Xmn898m -Djava.io.tmpdir=/opt/zimbra/mailboxd/work -Djava.library.path=/opt/zimbra/lib -Djava.endorsed.dirs=/opt/zimbra/mailboxd/common/endorsed -Dzimbra.config=/opt/zimbra/conf/localconfig.xml -Djetty.home=/opt/zimbra/mailboxd -DSTART=/opt/zimbra/mailboxd/etc/start.config -jar /opt/zimbra/mailboxd/start.jar /opt/zimbra/mailboxd/etc/jetty.properties /opt/zimbra/mailboxd/etc/jetty-setuid.xml /opt/zimbra/mailboxd/etc/jetty.xml
I have an `lsof` of this PID during the last time the server was slow if that helps diagnose the issue?
Release 7.1.3_GA_3346.RHEL5_64_20110928134520 CentOS5_64 FOSS edition.