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From rednaxelafx <>
Subject [GitHub] spark pull request #18095: [SPARK-20872][SQL] ShuffleExchange.nodeName shoul...
Date Wed, 24 May 2017 18:52:37 GMT
GitHub user rednaxelafx opened a pull request:

    [SPARK-20872][SQL] ShuffleExchange.nodeName should handle null coordinator

    ## What changes were proposed in this pull request?
    A one-liner change in `ShuffleExchange.nodeName` to cover the case when `coordinator`
is `null`, so that the match expression is exhaustive.
    Please refer to [SPARK-20872]( for a
description of the symptoms.
    ## How was this patch tested?
    Manually tested this change with a case where the `coordinator` is null to make sure `ShuffleExchange.nodeName`
doesn't throw a `MatchError` any more.

You can merge this pull request into a Git repository by running:

    $ git pull shuffleexchange-nodename

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #18095
commit 23aff2a468b9b1522f6520489bdca2ee7389a10a
Author: Kris Mok <>
Date:   2017-05-24T18:44:43Z

    SPARK-20872: make ShuffleExchange.nodeName handle null coordinator


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