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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4597) Add SCHEDULE to NM container lifecycle
Date Fri, 11 Nov 2016 19:40:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-4597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15657929#comment-15657929
] 

ASF GitHub Bot commented on YARN-4597:
--------------------------------------

Github user kambatla commented on a diff in the pull request:

    https://github.com/apache/hadoop/pull/143#discussion_r87628936
  
    --- Diff: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/scheduler/ContainerScheduler.java
---
    @@ -0,0 +1,393 @@
    +/**
    + * 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.nodemanager.containermanager.scheduler;
    +
    +import com.google.common.annotations.VisibleForTesting;
    +import org.apache.hadoop.service.AbstractService;
    +import org.apache.hadoop.yarn.api.records.ContainerExitStatus;
    +import org.apache.hadoop.yarn.api.records.ContainerId;
    +import org.apache.hadoop.yarn.api.records.ExecutionType;
    +import org.apache.hadoop.yarn.api.records.ResourceUtilization;
    +import org.apache.hadoop.yarn.conf.YarnConfiguration;
    +import org.apache.hadoop.yarn.event.EventHandler;
    +import org.apache.hadoop.yarn.server.api.records.ContainerQueuingLimit;
    +import org.apache.hadoop.yarn.server.api.records.OpportunisticContainersStatus;
    +import org.apache.hadoop.yarn.server.nodemanager.Context;
    +import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
    +import org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainersMonitor;
    +
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +
    +import java.io.IOException;
    +import java.util.ArrayList;
    +import java.util.Collection;
    +import java.util.HashMap;
    +import java.util.Iterator;
    +import java.util.LinkedHashMap;
    +import java.util.LinkedList;
    +import java.util.List;
    +import java.util.Map;
    +
    +/**
    + * The ContainerScheduler manages a collection of runnable containers. It
    + * ensures that a container is launched only if all it launch criteria are
    --- End diff --
    
    s/it/its


> Add SCHEDULE to NM container lifecycle
> --------------------------------------
>
>                 Key: YARN-4597
>                 URL: https://issues.apache.org/jira/browse/YARN-4597
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: nodemanager
>            Reporter: Chris Douglas
>            Assignee: Arun Suresh
>              Labels: oct16-hard
>         Attachments: YARN-4597.001.patch, YARN-4597.002.patch, YARN-4597.003.patch, YARN-4597.004.patch,
YARN-4597.005.patch, YARN-4597.006.patch, YARN-4597.007.patch, YARN-4597.008.patch, YARN-4597.009.patch
>
>
> Currently, the NM immediately launches containers after resource localization. Several
features could be more cleanly implemented if the NM included a separate stage for reserving
resources.



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