When I use Zimbra 8.0.3 on my old server RAM utilization was 5,7 Gb (6 Gb total availible). After migrate zimbra to another server and upgrade it to 8.0.4 memory utilization was 7,8 Gb (8 Gb total availible). Is that normal? Server OS - Ubuntu 12.04 (clean install with SSH role only + zimbra - no other soft).
Zimbra Support told us to go through
Performance Tuning Guidelines for Large Deployments - Zimbra :: Wiki
We didn't have a chance to apply all performance tips but some of them seem to work. Things we changed:
JVM Local Config
zmlocalconfig -e zimbra_require_interprocess_security=0
innodb_max_dirty_pages_pct = 10
innodb_flush_method = O_DIRECT
Currently it seems that those measures helped us.
Maybe you don't see, but all people in this thread wrote the same: "before install/upgrade/apply the 8.0.4, the system work very well in the same machine, with the same SO and the same amount of RAM".... in other words, no change of hardware, only software....
For me, the problem isn't in the SO configuration or hardware... the problem is in the 8.0.4 version.
after many posts, did you continue thinking that the problem is in other side ??
Last edited by phoenix; 07-09-2013 at 09:24 PM.
this problem is very strange, but you both right.
i had this problem right after the 8.0.4 installed, however after i install a clean OS and move the /opt/zimbra folder to this new server my problem was gone. since then our zimbra server working flawless.
so something is related to the zimbra and the OS together if the OS is an in place upgraded.
Hello, after reading all related posts regarding "cpu high load after upgrade", and of course with no results, I realised there is another process, started by root, keytool, also eating too much from cpu. I don't know if is the same for you, but in my case did solve the problem, so I think I don't hurt anybody if share : I've reinstalled certificates and everything is working fine now....I am enjoying a 0.10 load on my server now