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From "Dmitro Lisnichenko" <dlysniche...@hortonworks.com>
Subject Re: Review Request 32816: Ambari UI for HBase config incorrectly describes the -Xmn config
Date Mon, 06 Apr 2015 10:27:44 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/32816/
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(Updated April 6, 2015, 10:27 a.m.)


Review request for Ambari and Andrew Onischuk.


Bugs: AMBARI-10350
    https://issues.apache.org/jira/browse/AMBARI-10350


Repository: ambari


Description
-------

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)


Diffs (updated)
-----

  ambari-server/src/main/resources/common-services/AMBARI_METRICS/0.1.0/configuration/ams-hbase-env.xml
307cb15 
  ambari-server/src/main/resources/common-services/HBASE/0.96.0.2.0/configuration/hbase-env.xml
7ed92ed 
  ambari-server/src/main/resources/stacks/BIGTOP/0.8/services/HBASE/configuration/hbase-env.xml
7218deb 
  ambari-server/src/main/resources/stacks/HDP/2.2/services/HBASE/configuration/hbase-env.xml
a1725e4 
  ambari-server/src/main/resources/stacks/PHD/3.0.0.0/services/HBASE/configuration/hbase-env.xml
2e92f56 
  ambari-server/src/test/resources/stacks/HDP/1.3.0/services/HBASE/configuration/global.xml
aff79f2 
  ambari-server/src/test/resources/stacks/HDP/2.0.5/services/HBASE/configuration/global.xml
cc4baf4 
  ambari-server/src/test/resources/stacks/HDP/2.0.7/services/HBASE/configuration/global.xml
3a54dcb 

Diff: https://reviews.apache.org/r/32816/diff/


Testing
-------

manual check


Thanks,

Dmitro Lisnichenko


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