问题背景

Redis启动报错：

WARNING you have Transparent Huge Pages (THP) support enabled in your kernel.

This will create latency and memory usage issues with Redis.

To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root,

and add it to your /etc/rc.local in order to retain the setting after a reboot.

Redis must be restarted after THP is disabled

问题原因

内核启用THP可能会导致内存使用问题

解决方案

将如下代码追加到 /etc/rc.local 文件中：

if test -f /sys/kernel/mm/redhat_transparent_hugepage/enabled; then

echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled

fi