Question

我刚刚安装了Centos 7的新实例

Linux version 3.10.0-229.1.2.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.2 20140120 (Red Hat 4.8.2-16) (GCC) ) #1 SMP Fri Mar 27 03:04:26 UTC 2015

我安装了mongodb 3.0，当我连接时，我有这个奇怪的消息：

2015-04-15T07:48:55.583+0000 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2015-04-15T07:48:55.583+0000 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2015-04-15T07:48:55.583+0000 I CONTROL  [initandlisten]
2015-04-15T07:48:55.583+0000 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2015-04-15T07:48:55.583+0000 I CONTROL  [initandlisten] **        We suggest setting it to 'never'

如何为此版本禁用THP？

我没有运气的事情

我可以禁用它运行此命令：

echo never > /sys/kernel/mm/transparent_hugepage/enabled
echo never > /sys/kernel/mm/transparent_hugepage/defrag

但是当我重新启动时，问题再次出现。

我尝试修改/etc/rc.local添加这些行：

if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
  echo never > /sys/kernel/mm/transparent_hugepage/defrag
fi
if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
  echo never > /sys/kernel/mm/transparent_hugepage/enabled
fi
exit 0

重启并没有结果

我还尝试修改/ etc / default / grub ...

Answer 1

我遇到了同样的问题，并通过在/etc/rc.local中写下来解决了这个问题：

echo never > /sys/kernel/mm/transparent_hugepage/enabled;
echo never > /sys/kernel/mm/transparent_hugepage/defrag;

我还授予了/etc/rc.d/rc.local

的执行权限

现在每次启动时都会被禁用。

如何在Centos 7上为mongodb禁用THP

1 个答案: