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https://issues.apache.org/jira/browse/YARN-5605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15472129#comment-15472129
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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_r77923085
--- Diff:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSPreemptionThread.java
---
@@ -0,0 +1,173 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
+import org.apache.hadoop.yarn.api.records.ContainerStatus;
+import org.apache.hadoop.yarn.api.records.Resource;
+import org.apache.hadoop.yarn.api.records.ResourceRequest;
+import
org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
+import
org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainerEventType;
+import
org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils;
+import org.apache.hadoop.yarn.util.resource.Resources;
+
+import java.util.ArrayList;
+import java.util.Comparator;
--- End diff --
Unused import
> 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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