Disabling transparent hugepages

Disable transparent hugepages to avoid java heap space errors when you run statements.

1. For each node in your cluster, run the following command:

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

   This command disables hugepages only temporarily.
2. Add the following command to the /etc/rc.local file to run the command automatically when you reboot.

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

3. Make sure that /etc/rc.local is executed on startup.