Richard Zang created AMBARI-11472:
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Summary: Namenode Advanced settings - Documentation Improvement -
NameNode new generation size
Key: AMBARI-11472
URL: https://issues.apache.org/jira/browse/AMBARI-11472
Project: Ambari
Issue Type: Bug
Components: ambari-web
Affects Versions: 2.1.0
Reporter: Richard Zang
Assignee: Richard Zang
Fix For: 2.1.0
Attachments: AMBARI-11472.patch
On the Ambari help page on internet we document
NameNode new generation size
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|NameNode new generation size|Default size of Java new generation for NameNode
(Java option -XX:NewSize) Note: The value of NameNode new generation size
(default size of Java new generation for NameNode (Java option -XX:NewSize))
should be 1/8 of maximum heap size (-Xmx). Ensure that the value of the
namenode_opt_newsize property is 1/8 the value of maximum heap size (-Xmx).|
However when we show the help tool tip for this setting we don't show this info
at all. This info is very helpful to setup right values. Please show that
recommendation is 1/8 of heap memory
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