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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2014/12/05 22:56:12 UTC
[jira] [Commented] (SPARK-4772) Accumulators leak memory, both
temporarily and permanently
[ https://issues.apache.org/jira/browse/SPARK-4772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236181#comment-14236181 ]
Apache Spark commented on SPARK-4772:
-------------------------------------
User 'nkronenfeld' has created a pull request for this issue:
https://github.com/apache/spark/pull/3570
> Accumulators leak memory, both temporarily and permanently
> ----------------------------------------------------------
>
> Key: SPARK-4772
> URL: https://issues.apache.org/jira/browse/SPARK-4772
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: Nathan Kronenfeld
> Labels: accumulators
> Fix For: 1.3.0
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Accumulators.localAccums is cleared at the beginning of a task, and not at the end.
> This means that any locally accumulated values hang around until another task is run on that thread.
> If for some reason, the thread dies, said values hang around indefinitely.
> This is really only a big issue with very large accumulators.
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