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From "Andrew Onischuk" <aonis...@hortonworks.com>
Subject Review Request 20420: Ambari should Manage JobHistory Heap Size
Date Wed, 16 Apr 2014 17:52:30 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/20420/
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Review request for Ambari and Dmytro Sen.


Bugs: AMBARI-5485
    https://issues.apache.org/jira/browse/AMBARI-5485


Repository: ambari


Description
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PROBLEM: Ambari does not manage mapred-env.sh and JobHistory memory cannot be
set via Ambari.

BUSINESS IMPACT: Users are not sure how to change JobHistory memory settings
in Ambari cluster. This came from eBay so looks like large clusters need to be
able to increase memory.

STEPS TO REPRODUCE: navigate to Services -> Mapreduce -> Configs tab and you
will notice that JobHistory Heap configuration is not there.

ACTUAL BEHAVIOR: Cannot change JobHistory memory in Ambari UI

EXPECTED BEHAVIOR: To be able to manage JobHistory memory in Ambari UI

SUPPORT ANALYSIS: Since Ambari does not manage mapred-env.sh you can manually
edit config in mapred-env.sh. I verified by manually setting the memory and
restarting cluster via Ambari that config value did not change.

    
    
    
    [root@63ambarihdp2010 conf]# grep -i heap /etc/hadoop/conf/mapred-env.sh
    export HADOOP_JOB_HISTORYSERVER_HEAPSIZE=900
    


Diffs
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  ambari-server/src/main/resources/stacks/HDP/2.0.6/hooks/before-START/scripts/params.py f1ef84a

  ambari-server/src/main/resources/stacks/HDP/2.0.6/hooks/before-START/scripts/shared_initialization.py
3ffcc76 
  ambari-server/src/main/resources/stacks/HDP/2.0.6/hooks/before-START/templates/mapred-env.sh.j2
PRE-CREATION 
  ambari-server/src/main/resources/stacks/HDP/2.0.6/services/YARN/configuration-mapred/global.xml
984cd41 
  ambari-server/src/test/python/stacks/2.0.6/hooks/before-START/test_before_start.py 88448e6

  ambari-web/app/controllers/main/service/info/configs.js c183b83 
  ambari-web/app/controllers/wizard/step8_controller.js 8bb548b 
  ambari-web/app/data/HDP2/global_properties.js 0b61e77 

Diff: https://reviews.apache.org/r/20420/diff/


Testing
-------


Thanks,

Andrew Onischuk


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