[jira] [Commented] (SPARK-12807) Spark External Shuffle not working in Hadoop clusters with Jackson 2.2.3

["Steve Loughran (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-12807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15096537#comment-15096537 ] 

Steve Loughran commented on SPARK-12807:
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Needs either an upgrade to Hadoop's own dependencies (HADOOP-12705) or YARN to support custom classpaths for aux services (YARN-1593 or YARN-4755)

Without any of those fixes, Spark will need to be rebuild with {{-Dfasterxml.jackson.version=2.2.3}}

> Spark External Shuffle not working in Hadoop clusters with Jackson 2.2.3
> ------------------------------------------------------------------------
>
>                 Key: SPARK-12807
>                 URL: https://issues.apache.org/jira/browse/SPARK-12807
>             Project: Spark
>          Issue Type: Bug
>          Components: Shuffle, YARN
>    Affects Versions: 1.6.0
>         Environment: A Hadoop cluster with Jackson 2.2.3, spark running with dynamic allocation enabled
>            Reporter: Steve Loughran
>
> When you try to try to use dynamic allocation on a Hadoop 2.6-based cluster, you get to see a stack trace in the NM logs, indicating a jackson 2.x version mismatch.
> (reported on the spark dev list)



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