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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_r108020399 --- 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 --- @@ -18,18 +18,27 @@ package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair; +import com.google.common.annotations.VisibleForTesting; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.hadoop.classification.InterfaceAudience.Private; import org.apache.hadoop.classification.InterfaceStability.Unstable; import org.apache.hadoop.yarn.api.records.ApplicationAttemptId; +import org.apache.hadoop.yarn.api.records.ContainerId; +import org.apache.hadoop.yarn.api.records.Resource; import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer; import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode; import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt; import org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey; import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode; +import org.apache.hadoop.yarn.util.resource.Resources; import java.util.Collection; +import java.util.Comparator; +import java.util.Iterator; +import java.util.LinkedHashMap; +import java.util.LinkedHashSet; --- End diff -- Don't think we are using this import anymore. > 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