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Posted to yarn-issues@hadoop.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/09/07 16:53:20 UTC
[jira] [Commented] (YARN-5605) Preempt containers (all on one node)
to meet the requirement of starved applications
[ https://issues.apache.org/jira/browse/YARN-5605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15471118#comment-15471118 ]
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_r77861935
--- Diff: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/AppSchedulingInfo.java ---
@@ -535,6 +535,23 @@ public synchronized Resource getResource(SchedulerRequestKey schedulerKey) {
}
/**
+ * Method to return the next resource request to be serviced.
+ *
+ * In the initial implementation, we just pick any {@link ResourceRequest}
+ * corresponding to the highest priority.
+ *
+ * @return next {@link ResourceRequest} to allocate resources for.
+ */
+ @Unstable
+ public synchronized ResourceRequest getNextResourceRequest() {
+ for (ResourceRequest rr:
+ resourceRequestMap.get(schedulerKeys.first()).values()) {
+ return rr;
--- End diff --
Can we please have one exit point?
> 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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