[jira] [Assigned] (SPARK-20886) HadoopMapReduceCommitProtocol to fail with message if FileOutputCommitter.getWorkPath==null

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-20886?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon reassigned SPARK-20886:
------------------------------------

    Assignee: Steve Loughran

This was fixed in a way to allow {{null}} case.

> HadoopMapReduceCommitProtocol to fail with message if FileOutputCommitter.getWorkPath==null
> -------------------------------------------------------------------------------------------
>
>                 Key: SPARK-20886
>                 URL: https://issues.apache.org/jira/browse/SPARK-20886
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.3.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Trivial
>             Fix For: 2.3.0
>
>
> This is minor, and the root cause is my fault *elsewhere*, but its the patch I used to track down the problem.
> If {{HadoopMapReduceCommitProtocol}} has a {{FileOutputCommitter}} for committing things, and *somehow* that's been configured with a {{JobAttemptContext}}, not a {{TaskAttemptContext}}, then the committer NPEs.
> A {{require()}} statement can validate the working path and so point the blame at whoever's code is confused.



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