sysctl.conf中的参数被Tuned覆盖

https://access.redhat.com/solutions/2733921
Sysctl.conf parameters overridden by Tuned

环境

• Red Hat Enterprise Linux 5
• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 7

问题

• Settings in /etc/sysctl.conf get overridden by tuned

决议

To set custom parameters in /etc/sysctl.conf, tuned needs to be disabled first

• RHEL 5 and RHEL 6

Raw

# service tuned stop
# chkconfig tuned off
# service ktune stop
# chkconfig ktune off

OR

Raw

# tuned-adm off

• RHEL 7

Raw

# systemctl stop tuned
# systemctl disable tuned
# systemctl stop ktune
# systemctl disable ktune

根源

Tuned profiles take precedence over other values on the system.

诊断步骤

Check if tuned is enabled on the system

• RHEL 5 and RHEL 6

Raw

chkconfig tuned

OR

Raw

chkconfig ktune

• RHEL 7

Raw

systemctl status tuned

OR

Raw

systemctl status ktune