[ https://issues.apache.org/jira/browse/YARN-5829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15923138#comment-15923138 ]
ASF GitHub Bot commented on YARN-5829: -------------------------------------- Github user kambatla commented on a diff in the pull request: https://github.com/apache/hadoop/pull/201#discussion_r105787301 --- Diff: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSSchedulerNode.java --- @@ -118,23 +178,56 @@ synchronized FSAppAttempt getReservedAppSchedulable() { * * @param containers container to mark */ - void addContainersForPreemption(Collection<RMContainer> containers) { - containersForPreemption.addAll(containers); + void addContainersForPreemption(Collection<RMContainer> containers, + FSAppAttempt appAttempt) { + for(RMContainer container : containers) { + containersForPreemption.put(container, appAttempt); --- End diff -- We should add the entry to the other map also here. That way, we count allocations prior to the preemptions also against the same app. > FS preemption should reserve a node before considering containers on it for > preemption > -------------------------------------------------------------------------------------- > > Key: YARN-5829 > URL: https://issues.apache.org/jira/browse/YARN-5829 > Project: Hadoop YARN > Issue Type: Sub-task > Components: fairscheduler > Reporter: Karthik Kambatla > Assignee: Miklos Szegedi > > FS preemption evaluates nodes for preemption, and subsequently preempts > identified containers. If this node is not reserved for a specific > application, any other application could be allocated resources on this node. > Reserving the node for the starved application before preempting containers > would help avoid this. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org