Zimbra 5.0 FOSS eating memory.

[Miklos Kalman]

Hi,

I have Zimbra 5.0 installed on an Ubuntu 6.06LTS. It is a virtual machine through VMWare. The machine was allocated 3GB of memory and for some reason Zimbra eats up 95% of it. Is this normal? Here is the memory output:

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
26853 zimbra 16 0 1787m 563m 12m S 0.0 18.5 3:37.36 java
26530 zimbra 16 0 1733m 162m 4752 S 0.0 5.3 1:52.37 mysqld
27008 zimbra 16 0 83808 62m 996 S 0.0 2.1 0:06.73 clamd
26957 zimbra 16 0 61016 51m 3624 S 0.0 1.7 0:01.31 amavisd
26952 zimbra 16 0 60956 51m 3620 S 0.0 1.7 0:01.15 amavisd
26951 zimbra 15 0 60672 51m 3628 S 0.0 1.7 0:01.37 amavisd
26950 zimbra 16 0 60680 51m 3604 S 0.0 1.7 0:00.75 amavisd
26942 zimbra 16 0 60628 50m 3636 S 0.0 1.7 0:01.17 amavisd
26941 zimbra 16 0 60640 50m 3624 S 0.0 1.7 0:01.18 amavisd
26949 zimbra 16 0 60636 50m 3600 S 0.0 1.7 0:01.04 amavisd
26944 zimbra 16 0 60548 50m 3636 S 0.0 1.7 0:01.49 amavisd
26945 zimbra 16 0 60548 50m 3600 S 0.0 1.7 0:00.88 amavisd
26956 zimbra 16 0 60536 50m 3588 S 0.0 1.7 0:01.19 amavisd
26926 zimbra 16 0 56412 48m 2296 S 0.0 1.6 0:00.76 amavisd
25789 zimbra 22 0 163m 16m 4324 S 0.0 0.5 0:48.18 slapd
26329 zimbra 16 0 98.2m 14m 4048 S 0.0 0.5 0:25.72 mysqld
27031 zimbra 16 0 11772 6544 2276 S 0.0 0.2 0:00.05 httpd

Why is amavisd running so many instances? Is this normal?

Thanks,
Miklos

[jholder]

Do you have a lot of mail coming in? My guess would be that it's spawning those procs as a result of multiple scans. It should clean them up.

What does free -m show?

[Miklos Kalman]

There aren't that many emails coming in. Since this is a new server which is not put into production yet. There are 4 users with maximum 3 emails/user/day currently. The alarming part is how much memory will it require when it goes live? Maybe an incorrect setting?

[Jason Goodwin]

Tomcat can be a hog. IIRC the default settings for it with Zimbra will pretty much cause it to consume whatever you have. If you run 'ps aux | grep tomcat' and look at the -Xms and -Xmx values, you'll see how much stack/heap memory it is allocating. There is information here Performance Tuning Guidelines for Large Deployments - Zimbra :: Wiki
on how to adjust tomcat. There is also information there on tuning other parts of Zimbra like amavisd.

Apologies if this post is a dupe, but I'm not seeing the reply I posted.

HTH,
--
Jason