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From "Dmitry Lysnichenko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-10350) Ambari UI for HBase config incorrectly describes the -Xmn config
Date Fri, 03 Apr 2015 15:41:53 GMT
Dmitry Lysnichenko created AMBARI-10350:
-------------------------------------------

             Summary: Ambari UI for HBase config incorrectly describes the -Xmn config
                 Key: AMBARI-10350
                 URL: https://issues.apache.org/jira/browse/AMBARI-10350
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
            Reporter: Dmitry Lysnichenko
            Assignee: Dmitry Lysnichenko
             Fix For: 2.1.0


Ambari GUI for HBase config incorrectly describes the -Xmn as the “maximum value for the
minimum heap size”, which is incorrect. Xmn is the size of the heap for the young generation.
If somebody new to Java just reads the Ambari description and set both Xmn and Xmx to the
same value, HBase will start but it will perform miserably. Please fix the documentation for
the two settings in Ambari GUI that refer to Xmx (the ratio and the static value)



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