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https://issues.apache.org/jira/browse/YARN-5605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15471136#comment-15471136
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ASF GitHub Bot commented on YARN-5605:
--------------------------------------
Github user templedf commented on a diff in the pull request:
https://github.com/apache/hadoop/pull/124#discussion_r77863007
--- Diff:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSAppAttempt.java
---
@@ -442,25 +448,33 @@ public synchronized void resetAllowedLocalityLevel(
allowedLocalityLevel.put(schedulerKey, level);
}
- // related methods
- public void addPreemption(RMContainer container, long time) {
- assert preemptionMap.get(container) == null;
- preemptionMap.put(container, time);
- Resources.addTo(preemptedResources, container.getAllocatedResource());
+ @Override
+ public FSLeafQueue getQueue() {
+ return (FSLeafQueue)super.getQueue();
--- End diff --
Seems like this should be more defensive, i.e. check for the type before
casting.
> Preempt containers (all on one node) to meet the requirement of starved
> applications
> ------------------------------------------------------------------------------------
>
> Key: YARN-5605
> URL: https://issues.apache.org/jira/browse/YARN-5605
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: fairscheduler
> Reporter: Karthik Kambatla
> Assignee: Karthik Kambatla
> Attachments: yarn-5605-1.patch
>
>
> Required items:
> # Identify starved applications
> # Identify a node that has enough containers from applications over their
> fairshare.
> # Preempt those containers
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