Yuming Wang 9df08e218c [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 java.lang.NullPointerException at org.apache.spark.network.shuffle.ExternalShuffleClient.close(ExternalShuffleClient.java:152) at org.apache.spark.storage.BlockManager.stop(BlockManager.scala:1407) 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 Author: Yuming Wang <wgyumg@gmail.com> Closes #19670 from wangyum/SPARK-22454.		2017-11-07 08:30:58 +00:00
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src	[SPARK-22454][CORE] ExternalShuffleClient.close() should check clientFactory null	2017-11-07 08:30:58 +00:00
pom.xml	[SPARK-21369][CORE] Don't use Scala Tuple2 in common/network-*	2017-07-11 11:26:17 +08:00