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Posted to issues@spark.apache.org by "Thomas Graves (JIRA)" <ji...@apache.org> on 2015/12/02 19:39:10 UTC
[jira] [Commented] (SPARK-1239) Don't fetch all map output statuses
at each reducer during shuffles
[ https://issues.apache.org/jira/browse/SPARK-1239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15036341#comment-15036341 ]
Thomas Graves commented on SPARK-1239:
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I have another user hitting this also. The above mentions other issues that need to be addressed in MapOutputStatusTracker do you have links to those other issues?
> Don't fetch all map output statuses at each reducer during shuffles
> -------------------------------------------------------------------
>
> Key: SPARK-1239
> URL: https://issues.apache.org/jira/browse/SPARK-1239
> Project: Spark
> Issue Type: Improvement
> Components: Shuffle, Spark Core
> Affects Versions: 1.0.2, 1.1.0
> Reporter: Patrick Wendell
>
> Instead we should modify the way we fetch map output statuses to take both a mapper and a reducer - or we should just piggyback the statuses on each task.
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