Hari Sekhon created AMBARI-10732:
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Summary: Ambari recommending huge NameNode heap size increase?
Key: AMBARI-10732
URL: https://issues.apache.org/jira/browse/AMBARI-10732
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 2.0.0
Environment: HDP 2.2
Reporter: Hari Sekhon
Priority: Minor
After adding an HDFS storage tiering configuration, on saving it Ambari
suddenly recommends the configuration of the NameNode heap be drastically
increased from around 3GB to 51GB, even though the archive tier only adds 1/5
of the capacity compared to the already configured local disk and the NameNode
heap is only 65% used right now.
This seems like a calculation bug, so I've ignored that recommendation and may
increase the NameNode heap to a more sensible 4-5GB if needed.
I'm attaching a screenshot.
Hari Sekhon
http://www.linkedin.com/in/harisekhon
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