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Posted to mapreduce-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2015/05/02 20:25:07 UTC
[jira] [Commented] (MAPREDUCE-4487) Reduce job latency by removing
hardcoded sleep statements
[ https://issues.apache.org/jira/browse/MAPREDUCE-4487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14525390#comment-14525390 ]
Hadoop QA commented on MAPREDUCE-4487:
--------------------------------------
(!) The patch artifact directory has been removed!
This is a fatal error for test-patch.sh. Aborting.
Jenkins (node H3) information at https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5590/ may provide some hints.
> Reduce job latency by removing hardcoded sleep statements
> ---------------------------------------------------------
>
> Key: MAPREDUCE-4487
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4487
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv1, mrv2, performance
> Affects Versions: 1.0.3, 2.0.0-alpha
> Reporter: Tom White
> Assignee: Tom White
> Attachments: MAPREDUCE-4487-mr2.patch, MAPREDUCE-4487.patch
>
>
> There are a few places in MapReduce where there are hardcoded sleep statements. By replacing them with wait/notify or similar it's possible to reduce latency for short running jobs.
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