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https://issues.apache.org/jira/browse/SPARK-25637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16637604#comment-16637604
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Apache Spark commented on SPARK-25637:
--------------------------------------
User 'devaraj-kavali' has created a pull request for this issue:
https://github.com/apache/spark/pull/22625
> SparkException: Could not find CoarseGrainedScheduler occurs during the
> application stop
> ----------------------------------------------------------------------------------------
>
> Key: SPARK-25637
> URL: https://issues.apache.org/jira/browse/SPARK-25637
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.3.2
> Reporter: Devaraj K
> Priority: Minor
>
> {code:xml}
> 2018-10-03 14:51:33 ERROR Inbox:91 - Ignoring error
> org.apache.spark.SparkException: Could not find CoarseGrainedScheduler.
> at
> org.apache.spark.rpc.netty.Dispatcher.postMessage(Dispatcher.scala:160)
> at
> org.apache.spark.rpc.netty.Dispatcher.postOneWayMessage(Dispatcher.scala:140)
> at org.apache.spark.rpc.netty.NettyRpcEnv.send(NettyRpcEnv.scala:187)
> at
> org.apache.spark.rpc.netty.NettyRpcEndpointRef.send(NettyRpcEnv.scala:528)
> at
> org.apache.spark.scheduler.cluster.CoarseGrainedSchedulerBackend.reviveOffers(CoarseGrainedSchedulerBackend.scala:449)
> at
> org.apache.spark.scheduler.TaskSchedulerImpl.executorLost(TaskSchedulerImpl.scala:638)
> at
> org.apache.spark.HeartbeatReceiver$$anonfun$org$apache$spark$HeartbeatReceiver$$expireDeadHosts$3.apply(HeartbeatReceiver.scala:201)
> at
> org.apache.spark.HeartbeatReceiver$$anonfun$org$apache$spark$HeartbeatReceiver$$expireDeadHosts$3.apply(HeartbeatReceiver.scala:197)
> at
> scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:733)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:130)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:130)
> at
> scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:236)
> at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40)
> at scala.collection.mutable.HashMap.foreach(HashMap.scala:130)
> at
> scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:732)
> at
> org.apache.spark.HeartbeatReceiver.org$apache$spark$HeartbeatReceiver$$expireDeadHosts(HeartbeatReceiver.scala:197)
> at
> org.apache.spark.HeartbeatReceiver$$anonfun$receiveAndReply$1.applyOrElse(HeartbeatReceiver.scala:120)
> at
> org.apache.spark.rpc.netty.Inbox$$anonfun$process$1.apply$mcV$sp(Inbox.scala:105)
> at org.apache.spark.rpc.netty.Inbox.safelyCall(Inbox.scala:205)
> at org.apache.spark.rpc.netty.Inbox.process(Inbox.scala:101)
> at
> org.apache.spark.rpc.netty.Dispatcher$MessageLoop.run(Dispatcher.scala:221)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> SPARK-14228 fixed these kind of errors but still this is occurring while
> performing reviveOffers.
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