I too am running a small (~10 users) installation. However ours is deployed in ESXi and I am experiencing the same issue. I am also running Ubuntu 8.04 LTS Server. Exact same problem in our installation. It runs great after reboot and a couple days later CPU reaches upwards of 75-90%. When we perform a top it is a "Java" process that is pegging the CPU.
Initially I tried just restarting the zimbra server without rebooting. When I did this the problem remained and strangely even when the zimbra server was stopped the Java process remained. Rebooting the server fixes it for a few more days.
The server is ubuntu 8.04 LTS running in a 32-bit VM (Paravirtualized) with no applications on it other than Zimbra. We have allocated 2 vCPU's and 2G of memory. I am thinking that maybe the java version doesn't play nice with ubuntu. I may try and move it to CentOS or Red Hat to see if it fixes the issue.
Have you been able to make any progress on this? Any chance you can check and see if the CPU hog on your box is Java and if it remains after stopping the zimbra server?  |