I am setting up an ambari cluster with 3 virtualbox VMs running Ubuntu 16.04LTS. However I get the below warning:
The following hosts have Transparent Huge Pages (THP) enabled.
THP should be disabled to avoid potential Hadoop performance issues.
How can I disable THP in Ubuntu 16.04?
Transparent Huge Pages (THP) is a Linux memory management system that reduces the overhead of Translation Lookaside Buffer (TLB) lookups on machines with large amounts of memory by using larger memory pages.
Did you try this command:
sudo su
echo never > /sys/kernel/mm/transparent_hugepage/enabled
?
Alternatively, you may install hugepages
sudo su
apt-get install hugepages
hugeadm --thp-never
As mentioned by @Anthony, the effect would not persist after a reboot. Use your distribution-specific method to do that every time after reboot.
Install :
sudo apt install hugepages
Then run :
sudo hugeadm --thp-never
To persist the changes you can add this last command to /etc/rc.local
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