We previously have already encounter Java hitting 100% once in a while with Zimbra 7.2.0 on Ubuntu 8. Was told to upgrade to the latest 7.2.6 to fix the issue. However, we found that Java hit 100% even more after the upgrade!
We have contacted Support and was instructed to add this Java options:
$ zmlocalconfig -e mailboxd_java_options="-server -Djava.awt.headless=true \
-XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:NewRatio=2 \
-XX:PermSize=196m -XX:MaxPermSize=350m -XX:SoftRefLRUPolicyMSPerMB=1 \
-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps \
-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/opt/zimbra/log \
However, this does not resolve the issue. Anyone experienced this and manage to overcome it?