You’ve started the external shuffle service on all worker nodes, correct? Can you confirm they’re still running and haven’t exited?
From: Yuval.Itzchakov<mailto:yuva...@gmail.com> Sent: Tuesday, March 8, 2016 12:41 PM To: user@spark.apache.org<mailto:user@spark.apache.org> Subject: Using dynamic allocation and shuffle service in Standalone Mode Hi, I'm using Spark 1.6.0, and according to the documentation, dynamic allocation and spark shuffle service should be enabled. When I submit a spark job via the following: spark-submit \ --master **** \ --deploy-mode cluster \ --executor-cores 3 \ --conf "spark.streaming.backpressure.enabled=true" \ --conf "spark.dynamicAllocation.enabled=true" \ --conf "spark.dynamicAllocation.minExecutors=2" \ --conf "spark.dynamicAllocation.maxExecutors=24" \ --conf "spark.shuffle.service.enabled=true" \ --conf "spark.executor.memory=8g" \ --conf "spark.driver.memory=10g" \ --class SparkJobRunner /opt/clicktale/entityCreator/com.clicktale.ai.entity-creator-assembly-0.0.2.jar I'm seeing error logs from the workers being unable to connect to the shuffle service: 16/03/08 17:33:15 ERROR storage.BlockManager: Failed to connect to external shuffle server, will retry 2 more times after waiting 5 seconds... java.io.IOException: Failed to connect to **** at org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:216) at org.apache.spark.network.client.TransportClientFactory.createUnmanagedClient(TransportClientFactory.java:181) at org.apache.spark.network.shuffle.ExternalShuffleClient.registerWithShuffleServer(ExternalShuffleClient.java:141) at org.apache.spark.storage.BlockManager$$anonfun$registerWithExternalShuffleServer$1.apply$mcVI$sp(BlockManager.scala:211) at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:141) at org.apache.spark.storage.BlockManager.registerWithExternalShuffleServer(BlockManager.scala:208) at org.apache.spark.storage.BlockManager.initialize(BlockManager.scala:194) at org.apache.spark.executor.Executor.<init>(Executor.scala:85) at org.apache.spark.executor.CoarseGrainedExecutorBackend$$anonfun$receive$1.applyOrElse(CoarseGrainedExecutorBackend.scala:83) at org.apache.spark.rpc.netty.Inbox$$anonfun$process$1.apply$mcV$sp(Inbox.scala:116) at org.apache.spark.rpc.netty.Inbox.safelyCall(Inbox.scala:204) at org.apache.spark.rpc.netty.Inbox.process(Inbox.scala:100) at org.apache.spark.rpc.netty.Dispatcher$MessageLoop.run(Dispatcher.scala:215) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) I verified all relevant ports are open. Has anyone else experienced such a failure? Yuval. -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Using-dynamic-allocation-and-shuffle-service-in-Standalone-Mode-tp26430.html Sent from the Apache Spark User List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org