THP Transparent HugePages关闭

ambari 安装Hortonworks HDP 时在检测host异常

 

The following hosts have Transparent Huge Pages (THP) enabled。THP should be disabled to avoid potential Hadoop performance issues.

关闭Transparent HugePages的办法：

在linux下执行

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