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https://reviews.apache.org/r/45619/
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Review request for Ambari, Andrew Onischuk, Mahadev Konar, and Sumit Mohanty.
Bugs: AMBARI-15677
https://issues.apache.org/jira/browse/AMBARI-15677
Repository: ambari
Description
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We need to make sure the Namenode CMS GC settings are correct.
Ambari does not currently set -XX:CMSInitiatingOccupancyFraction=70 or
-XX:+UseCMSInitiatingOccupancyOnly. The NewSize needs also some tweaking: it
should be 1/8th to 1/10th of the namenode heap size in general, but it looks
like we would cap at 8 gb like here (this NN has 112 GB heap).
Diffs
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ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/configuration/hadoop-env.xml
cade180
ambari-server/src/main/resources/stacks/HDP/2.2/services/HDFS/configuration/hadoop-env.xml
7429738
ambari-server/src/main/resources/stacks/HDP/2.3/services/HDFS/configuration/hadoop-env.xml
80b545c
Diff: https://reviews.apache.org/r/45619/diff/
Testing
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mvn clean test
Thanks,
Vitalyi Brodetskyi
