RHEL7: How to configure a rc-local service

标签：exit   ISE   his   sys   bin   smp   parallel   test   没有   

问题: linux7 /etc/rc.local 不生效：

[root@bogon mysql3306]# uname -a
Linux bogon 3.10.0-862.el7.x86_64 #1 SMP Fri Apr 20 16:44:24 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

在/etc/rc.local上添加如下部分，重启后没有生效：

if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
 echo never > /sys/kernel/mm/transparent_hugepage/enabled
fi
if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
 echo never > /sys/kernel/mm/transparent_hugepage/defrag
fi

[root@bogon mysql3306]# cat /etc/rc.local
#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run ‘chmod +x /etc/rc.d/rc.local‘ to ensure
# that this script will be executed during boot.

解决方法：

(1) chmod +x /etc/rc.d/rc.local

(2) systemctl enable rc-local

(3) systemctl start rc-local

(4) 验证生效：

[root@bogon ~]# cat /sys/kernel/mm/transparent_hugepage/defrag
always madvise [never]
[root@bogon ~]# cat /sys/kernel/mm/transparent_hugepage/enabled
always madvise [never]
[root@bogon ~]#

(5) 重启后验证依然生效

RHEL7: How to configure a rc-local service

标签：exit   ISE   his   sys   bin   smp   parallel   test   没有   

原文地址：https://www.cnblogs.com/DataArt/p/9978764.html