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Web server load goes to 90

Dear All,
I have web server with whm install on it .its working fine but some time Load goes to 90 or 98 . and server goes to the not responding mod . and that time i do not enter simple cd or ls command .its normal after 3 or 4 mints .Sits are not responding at that time what causes that server load goes to the 98 .server specs are under
CentOS release 5.11 (Final)
kernel version 2.6.18-408.el5 #1 SMP Tue Jan 19 09:13:33 EST 2016 i686 i686 i386 GNU/Linux
WHM version 11.56.0.33

Quote:

Originally Posted by anis123 (Post 5629944)

I have web server with whm install on it .its working fine but some time Load goes to 90 or 98 . (..) .its normal after 3 or 4 mints .

So what do you have / do when the load of a server goes up?
Do you have any (remote) monitoring?
Do you automagically check server details in any other, preferably automated, way (like with atop)?
And do you perform any post-mortem after the incident?
Like checking system and daemon log files for traffic, anomalies etcetera?
Does this load occur at regular intervals? Have you checked cron jobs (backups perhaps)?

Quote:

Originally Posted by anis123 (Post 5629944)

CentOS release 5.11 (Final)
WHM version 11.56.0.33

Please note EOl for CentOS 5 is March 31st 2017.
Please note latest stable 11 series WHM is 11.58.0.12 released August 2nd 2016.