I have a big issue with in my Zimbra server.
I migrated from 32 to 64 bit, from centos 5.5 to centos 6.2.
The system is working fine, but the imap-ssl service makes out of memory errors and the zmmailboxd is always stopped. 30-50 times a day!
I readed some forums of java_heap_space and the memory optimalizations, but the problem is still...
Zimbra Open Source edition, for redhat 6@64 bit
8 GB ram
Centos 6.2@64 bit
My memori options for zimbra:
zmlocalconfig | grep -i mailboxd_java
mailboxd_java_heap_new_size_percent = 20
mailboxd_java_heap_size = 2048
mailboxd_java_options = -server -Djava.awt.headless=true -Dsun.net.inetaddr.ttl= -XX:+UseConcMarkSweepGC -XX:PermSize=128m -XX:MaxPermSize=128m -XX:SoftRefLRUPolicyMSPerMB=1 -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationStoppedTime -XX:-OmitStackTraceInFastThrow
I changed the conccurrent imap connections from default 200 to 600 but still.
If i blocked the imaps service (via iptables) the zimbra is workign, but the imap is needed for us.