On Thu, Apr 11, 2013 at 10:36 AM, nan del bosc nandelbosc@gmail.com wrote:
Hi to all!
We're using CentOS 5.5 64bits for our Plesk 11.
This week we had the following problem 3 times...
Suddenly, the server stops responding in all services (SSH, Apache, Postfix, ...) but ping works!
After wait a few minutes (or 2 hours some times) the server continues unresponsive until we reboot. After reboot we search on /var/log/messages but cannot find useful information...
...
What can we do? what can we test?
Are you running sysstat / sar ?
Perhaps the sa / sar database that's left after reboot can show if some resource was over capacity.