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https://issues.apache.org/jira/browse/MAPREDUCE-3399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176272#comment-13176272
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Hudson commented on MAPREDUCE-3399:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk-Commit #1491 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/1491/])
MAPREDUCE-3399. Modifying ContainerLocalizer to send a heartbeat to NM
immediately after downloading a resource instead of always waiting for a
second. Contributed by Siddarth Seth.
vinodkv :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1224970
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/ContainerLocalizer.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/TestContainerLocalizer.java
> ContainerLocalizer should request new resources after completing the current
> one
> --------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3399
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mrv2, nodemanager
> Affects Versions: 0.23.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Priority: Blocker
> Fix For: 0.23.1
>
> Attachments: MR3399_v1.txt, MR3399_v2.txt
>
>
> Currently, the ContainerLocalizer to NM heartbeats to the NM every second.
> Not very significant, but this causes a ~4second delay in jobs (job jar,
> splits, etc). Instead, it should heartbeat to ask for additional resources to
> localize as soon as the previous one is localzied. There's already a TODO in
> the ContainerLocalizer for this.
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