MongoDB requires disabling of transparent_hugepages in Ubuntu 16.04 for performance enhancements. In order to achieve this we need to make a script that is automatically executed when system reboots. Follow the following steps to enable this in your linux installation:
Step 1:
Create a file by name “disable-transparent-hugepages” in /etc/init.d and paste the following lines in it
#!/bin/sh ### BEGIN INIT INFO # Provides: disable-transparent-hugepages # Required-Start: $local_fs # Required-Stop: # X-Start-Before: mongod mongodb-mms-automation-agent # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Disable Linux transparent huge pages # Description: Disable Linux transparent huge pages, to improve # database performance. ### END INIT INFO case $1 in start) if [ -d /sys/kernel/mm/transparent_hugepage ]; then thp_path=/sys/kernel/mm/transparent_hugepage elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then thp_path=/sys/kernel/mm/redhat_transparent_hugepage else return 0 fi echo 'never' > ${thp_path}/enabled echo 'never' > ${thp_path}/defrag unset thp_path ;; esac
Step 2:
Run the following command to enable the service
chmod 755 /etc/init.d/disable-transparent-hugepages update-rc.d distable-transparent-hugepages defaults
Disabling transparent_hugepages in Ubuntu 16.04