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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2014/11/05 03:56:33 UTC

[jira] [Commented] (SPARK-4238) Perform network-level retry of shuffle file fetches

    [ https://issues.apache.org/jira/browse/SPARK-4238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14197417#comment-14197417 ] 

Apache Spark commented on SPARK-4238:
-------------------------------------

User 'aarondav' has created a pull request for this issue:
https://github.com/apache/spark/pull/3101

> Perform network-level retry of shuffle file fetches
> ---------------------------------------------------
>
>                 Key: SPARK-4238
>                 URL: https://issues.apache.org/jira/browse/SPARK-4238
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>            Reporter: Aaron Davidson
>            Assignee: Aaron Davidson
>            Priority: Critical
>
> During periods of high network (or GC) load, it is not uncommon that IOExceptions crop up around connection failures when fetching shuffle files. Unfortunately, when such a failure occurs, it is interpreted as an inability to fetch the files, which causes us to mark the executor as lost and recompute all of its shuffle outputs.
> We should allow retrying at the network level in the event of an IOException in order to avoid this circumstance.



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