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Hudson commented on YARN-3920: ------------------------------ FAILURE: Integrated in Hadoop-Mapreduce-trunk #2359 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2359/]) YARN-3920. FairScheduler container reservation on a node should be configurable to limit it to large containers (adhoot via asuresh) (Arun Suresh: rev 94dec5a9164cd9bc573fbf74e76bcff9e7c5c637) * 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 * hadoop-yarn-project/CHANGES.txt * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairSchedulerConfiguration.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairSchedulerTestBase.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java > FairScheduler container reservation on a node should be configurable to limit > it to large containers > ---------------------------------------------------------------------------------------------------- > > Key: YARN-3920 > URL: https://issues.apache.org/jira/browse/YARN-3920 > Project: Hadoop YARN > Issue Type: Improvement > Components: fairscheduler > Reporter: Anubhav Dhoot > Assignee: Anubhav Dhoot > Attachments: YARN-3920.004.patch, YARN-3920.004.patch, > YARN-3920.004.patch, YARN-3920.004.patch, YARN-3920.005.patch, > yARN-3920.001.patch, yARN-3920.002.patch, yARN-3920.003.patch > > > Reserving a node for a container was designed for preventing large containers > from starvation from small requests that keep getting into a node. Today we > let this be used even for a small container request. This has a huge impact > on scheduling since we block other scheduling requests until that reservation > is fulfilled. We should make this configurable so its impact can be minimized > by limiting it for large container requests as originally intended. -- This message was sent by Atlassian JIRA (v6.3.4#6332)