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https://issues.apache.org/jira/browse/AMBARI-19947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15861258#comment-15861258
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Hudson commented on AMBARI-19947:
---------------------------------
FAILURE: Integrated in Jenkins build Ambari-trunk-Commit #6699 (See
[https://builds.apache.org/job/Ambari-trunk-Commit/6699/])
AMBARI-19947. To make sure LLAP preemption happens correctly, should
(vbrodetskyi:
[http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=59545f7fde971c352c7f7f44a19f436887fcdfe7])
* (edit)
ambari-server/src/main/resources/stacks/HDP/2.6/services/stack_advisor.py
* (edit)
ambari-server/src/main/resources/stacks/HDP/2.6/services/YARN/configuration/yarn-site.xml
* (edit)
ambari-server/src/main/resources/common-services/YARN/3.0.0.3.0/service_advisor.py
* (edit)
ambari-server/src/main/resources/stacks/HDP/3.0/services/YARN/configuration/yarn-site.xml
> To make sure LLAP preemption happens correctly, should enable
> priority-utilization.underutilized-preemption.enabled=true when YARN
> preemption is enabled
> --------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-19947
> URL: https://issues.apache.org/jira/browse/AMBARI-19947
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Reporter: Vitaly Brodetskyi
> Assignee: Vitaly Brodetskyi
> Priority: Critical
> Fix For: 2.5.0
>
> Attachments: AMBARI-19947.patch
>
>
> We requires admin enables YARN preemption to make sure LLAP daemon can be
> launched in a shared cluster.
> And
> yarn.scheduler.capacity.ordering-policy.priority-utilization.underutilized-preemption.enabled=true
> need to be set to make preemption can happen under a fragmented cluster.
> So once admin enables preemption, we can automatically set
> yarn.scheduler.capacity.ordering-policy.priority-utilization.underutilized-preemption.enabled
> to true.
> This option
> (yarn.scheduler.capacity.ordering-policy.priority-utilization.underutilized-preemption.enabled)
> only supported by HDP-2.6 and after, it has no effect on HDP 2.5 and before.
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