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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-15677) Ambari needs to set HDFS GC settings correctly
Date Fri, 21 Apr 2017 14:31:04 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-15677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15978824#comment-15978824
] 

Hudson commented on AMBARI-15677:
---------------------------------

FAILURE: Integrated in Jenkins build Ambari-trunk-Commit #7335 (See [https://builds.apache.org/job/Ambari-trunk-Commit/7335/])
AMBARI-20747 - Upgrade is not taking care of AMBARI-15677 (jhurley: [http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=84d2b3a0ac3256d7d10c550d94814db3602f9ed7])
* (edit) ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/upgrade-2.3.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/upgrade-2.5.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.4/upgrades/upgrade-2.4.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.4/upgrades/nonrolling-upgrade-2.4.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.5/upgrades/nonrolling-upgrade-2.6.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.4/upgrades/upgrade-2.6.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.6/upgrades/nonrolling-upgrade-2.6.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.5/upgrades/upgrade-2.5.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/config-upgrade.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.4/upgrades/nonrolling-upgrade-2.5.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.4/upgrades/upgrade-2.5.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/nonrolling-upgrade-2.6.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.4/upgrades/config-upgrade.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.4/upgrades/nonrolling-upgrade-2.6.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.5/upgrades/nonrolling-upgrade-2.5.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/nonrolling-upgrade-2.4.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/upgrade-2.6.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.5/upgrades/config-upgrade.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/nonrolling-upgrade-2.5.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/upgrade-2.4.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.6/upgrades/upgrade-2.6.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.5/upgrades/upgrade-2.6.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/nonrolling-upgrade-2.3.xml
* (edit) ambari-server/src/main/resources/stacks/HDP/2.6/upgrades/config-upgrade.xml


> Ambari needs to set HDFS GC settings correctly
> ----------------------------------------------
>
>                 Key: AMBARI-15677
>                 URL: https://issues.apache.org/jira/browse/AMBARI-15677
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.2.2
>            Reporter: Vitaly Brodetskyi
>            Assignee: Vitaly Brodetskyi
>            Priority: Critical
>             Fix For: 2.2.2
>
>         Attachments: AMBARI-15677.patch
>
>
> We need to make sure the Namenode CMS GC settings are correct.
> Ambari does not currently set -XX:CMSInitiatingOccupancyFraction=70 or -XX:+UseCMSInitiatingOccupancyOnly.
The NewSize needs also some tweaking: it should be 1/8th to 1/10th of the namenode heap size
in general, but it looks like we would cap at 8 gb like here (this NN has 112 GB heap).



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