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Posted to mapreduce-issues@hadoop.apache.org by "David Mollitor (Jira)" <ji...@apache.org> on 2019/09/20 15:20:00 UTC
[jira] [Updated] (MAPREDUCE-7242) Do Not Initialize Empty ArrayList
in LocalContainerAllocator
[ https://issues.apache.org/jira/browse/MAPREDUCE-7242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
David Mollitor updated MAPREDUCE-7242:
--------------------------------------
Status: Patch Available (was: Open)
> Do Not Initialize Empty ArrayList in LocalContainerAllocator
> ------------------------------------------------------------
>
> Key: MAPREDUCE-7242
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7242
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client
> Affects Versions: 3.2.0
> Reporter: David Mollitor
> Assignee: David Mollitor
> Priority: Trivial
> Attachments: MAPREDUCE-7242.1.patch
>
>
> https://github.com/apache/hadoop/blob/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/local/LocalContainerAllocator.java#L107-L110
> Just pass static empty collections and save the initialization.
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