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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/22090/
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(Updated July 7, 2014, 4:46 p.m.)
Review request for Ambari and Dmitro Lisnichenko.
Bugs: AMBARI-5973
https://issues.apache.org/jira/browse/AMBARI-5973
Repository: ambari
Description
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We need to add checks for Transparent Huge Page. With it enabled, we have
pretty horrible performance, and it's enabled by default on RHEL.
Reference: <https://access.redhat.com/site/documentation/en-
US/Red_Hat_Enterprise_Linux/6/html/Performance_Tuning_Guide/s-memory-
transhuge.html>
What we need to do pseudo code:
if (`cat /sys/kernel/mm/redhat_transparent_hugepage/enabled` != 'never'); then
echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled
end
We need to add a check, and then add the 'echo never' to the python script.
Diffs (updated)
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ambari-agent/src/main/python/ambari_agent/HostInfo.py 940305a
ambari-agent/src/test/python/ambari_agent/TestHostInfo.py 75704ef
ambari-server/src/main/java/org/apache/ambari/server/agent/AgentEnv.java
eed901c
ambari-server/src/test/java/org/apache/ambari/server/agent/AgentResourceTest.java
aba2f62
Diff: https://reviews.apache.org/r/22090/diff/
Testing
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mvn clean test
Thanks,
Andrew Onischuk
