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From wangyum <>
Subject [GitHub] spark pull request #19670: [SPARK-22454][CORE] ExternalShuffleClient.close()...
Date Mon, 06 Nov 2017 12:16:00 GMT
GitHub user wangyum opened a pull request:

    [SPARK-22454][CORE] ExternalShuffleClient.close() should check clientFactory null

    ## What changes were proposed in this pull request?
    `ExternalShuffleClient.close()` should check `clientFactory` null. otherwise it will throw
NPE sometimes:
    17/11/06 20:08:05 ERROR Utils: Uncaught exception in thread main
    	at org.apache.spark.SparkEnv.stop(SparkEnv.scala:89)
    	at org.apache.spark.SparkContext$$anonfun$stop$11.apply$mcV$sp(SparkContext.scala:1849)
    ## How was this patch tested?
    manual tests

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

    $ git pull SPARK-22454

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 #19670
commit fba4c8a7c5a343ffc1693de8994099a2aeecbd43
Author: Yuming Wang <>
Date:   2017-11-06T12:12:00Z

    ExternalShuffleClient.close() should check null



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