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https://issues.apache.org/jira/browse/AMBARI-20821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15979063#comment-15979063
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Hudson commented on AMBARI-20821:
---------------------------------
FAILURE: Integrated in Jenkins build Ambari-trunk-Commit #7338 (See
[https://builds.apache.org/job/Ambari-trunk-Commit/7338/])
AMBARI-20821. Update default values for YARN preemption in (vbrodetskyi:
[http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=99f16607f804992b4c06ea3f0e9295399604e7f6])
* (edit)
ambari-server/src/main/resources/stacks/HDP/2.6/services/stack_advisor.py
* (edit)
ambari-server/src/main/resources/common-services/YARN/3.0.0.3.0/configuration/yarn-site.xml
* (edit)
ambari-server/src/main/resources/stacks/HDP/2.6/services/YARN/configuration/yarn-site.xml
* (edit) ambari-server/src/test/python/stacks/2.6/common/test_stack_advisor.py
* (edit)
ambari-server/src/main/resources/common-services/YARN/3.0.0.3.0/service_advisor.py
> Update default values for YARN preemption in Ambari
> ---------------------------------------------------
>
> Key: AMBARI-20821
> URL: https://issues.apache.org/jira/browse/AMBARI-20821
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Reporter: Vitaly Brodetskyi
> Assignee: Vitaly Brodetskyi
> Fix For: 2.5.1
>
> Attachments: AMBARI-20821_trunk.patch
>
>
> Set 1)
> "yarn.resourcemanager.monitor.capacity.preemption.total_preemption_per_round"
> should >= 1 / #cluster-nodes. (For example, cluster has 20 nodes,
> total_preemption_per_round should be at least 1 / 20 = 0.05. (By default this
> is 0.1)
> This really should be part of stack-advisor.
> Set 2)
> yarn.resourcemanager.monitor.capacity.preemption.natural_termination_factor =
> 1 (by default is 0.2).
> The two configs will affect preemption for large containers like LLAP. We
> will put these suggestions to documentation, but it will be also good if we
> can update them in Ambari.
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