High Load AVG value caused by mcelog. cron

When the load AVG of the DB server is too high, it is found that the "murderer" is mcelog. cron.

The Code is as follows:

Code #! /Bin/bash

If [-E/proc/xen] & ['cat/sys/hypervisor/uuuuid '! = "00000000-0000-0000-0000-000000000000"]; then
# This is a PV xen guest. Do not run mcelog.
Exit 1;
Else
/Usr/sbin/mcelog -- ignorenodev -- filter>/var/log/mcelog
Fi

Pay attention to the "'cat/sys/hypervisor/uuid'", and the system will be stuck here, that is, it is useless to use kill-9 to kill its process number.

After running for a period of time, you will find that the process queue has a lot of cron information about it.

 

I personally think there are two solutions:

1. Modify the script (recommended)

2. Delete this cron task

 

Here is a link to its RedHat BUG:

Https://bugzilla.redhat.com/show_bug.cgi? Id = 522827