hadoop-08-关闭THP服务

hadoop-08-关闭THP服务

#查看THP服务
cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
cat /sys/kernel/mm/redhat_transparent_hugepage/defrag

#关闭 THP(Transparent HugePages )
# for hadoop , disable thp
echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled
echo never > /sys/kernel/mm/redhat_transparent_hugepage/defrag

vi /etc/grub.conf
transparent_hugepage=never

vi /etc/rc.local

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

参考：http://blog.csdn.net/levy_cui/article/details/51143125

参考：https://yq.aliyun.com/articles/34755