Disable THP on Ceilometer mongo nodes

Bug #1597772 reported by Volodymyr Stoiko
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Fuel for OpenStack
Confirmed
Low
Fuel Sustaining

Bug Description

Description:
 It is recommended by official Mongo docs to turn off transparent huge pages for mongo hosts.
Source: https://docs.mongodb.com/manual/tutorial/transparent-huge-pages/

Steps to reproduce:
cat /sys/kernel/mm/transparent_hugepage/enabled

Expected result:
always madvise [never]

Actual result:
[always] madvise never

Solution:
 Add "transparent_hugepage=never" to the kernel options of the mongo nodes, used for Ceilometer

tags: added: area-ceilometer
Changed in fuel:
importance: Undecided → Low
assignee: nobody → Fuel Sustaining (fuel-sustaining-team)
milestone: none → 10.0
status: New → Confirmed
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