Very HIGH CPU usage without any traffic :/

[seba22]

Hello administrators,

From 2 days i got very strange issue, i never had this before.
My local Zimbra server took 100 % of CPU from 2 days 24/7.

I even try fsck but it doesn't solve my problem.


First what i would like to show is output from nmon.
I can't see there process what take almost all cpu. CPU Utilization show usage by system at 92 %.



then i try with atop



but no answer.

Then i try with memory
I know 2,5 gb is to small, but should work.


And as you see, in swap 0 Mb - free 1,5 GB.

Then i show load:


It's very hight according, there is no "real load".


I attach syslog and messages. Myself i can't find there problem.
I really don't know what should i do.

2 days before, everything work great. I don't do any changes.

[uxbod]

Does it stay constantly > 90% and is zmgengraphs always running ? It would help if you were to let us know which version of ZCS you are running so please update your profile with the following output

su - zimbra
zmcontrol -v

[seba22]

Please excuse me, i forgot add my version. I updated profile.

My version:
Release 5.0.16_GA_2921.UBUNTU8 UBUNTU8 FOSS edition

with included security path.


Answer for your question:
zmgengraphs, no it show me different process right now:



I had try reinstall kernel, but it won't help.

[uxbod]

What happens if you restart ZCS ? What storage subsystem are you using ?

[veronica]

How many domains do you have ? Is it more than one ?

[seba22]

Originally Posted by veronica

How many domains do you have ? Is it more than one ?

I attached only something about 7 domain. (this is development server).


At night i want reinstall this box.

Moving ZCS to New Server - Zimbra :: Wiki

Is this tutorial will be suitable for my version ?

[uxbod]

Is this a physical or virtualised server ?

[seba22]

Fully vitalization by VBox. - I know this is not for production environment.



But that's not foul of this, i have other servers and they are running without any troubles :/

2 days past, this server doing great. But now.

I think this might be connected with our problems in filesystem on host server. We doing fsck at all partition and everything is fine. On guest and on host.

But i will try reinstall. Now im installing second box with Ubuntu 8.04 LTS. And we will see. May bye this will help.

[veronica]

Can you generate charts and see what has been the issue during the time.

you need to run :-

zmstat-chart -s /opt/zimbra/zmstat/<date> -d <destination directory for the files>