- THP可能对hadoop有潜在的性能影响：
The following hosts have Transparent Huge Pages (THP) enabled. THP should be disabled to avoid potential Hadoop performance issues.
解决办法：
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
