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From "Andrew Ash (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-2243) Support multiple SparkContexts in the same JVM
Date Sat, 18 Oct 2014 00:34:34 GMT

    [ https://issues.apache.org/jira/browse/SPARK-2243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14175750#comment-14175750
] 

Andrew Ash commented on SPARK-2243:
-----------------------------------

Found a couple potentially-related tickets; I'm going to link these as blocking this one:

SPARK-534
SPARK-3148

> Support multiple SparkContexts in the same JVM
> ----------------------------------------------
>
>                 Key: SPARK-2243
>                 URL: https://issues.apache.org/jira/browse/SPARK-2243
>             Project: Spark
>          Issue Type: New Feature
>          Components: Block Manager, Spark Core
>    Affects Versions: 1.0.0, 1.1.0
>            Reporter: Miguel Angel Fernandez Diaz
>
> We're developing a platform where we create several Spark contexts for carrying out different
calculations. Is there any restriction when using several Spark contexts? We have two contexts,
one for Spark calculations and another one for Spark Streaming jobs. The next error arises
when we first execute a Spark calculation and, once the execution is finished, a Spark Streaming
job is launched:
> {code}
> 14/06/23 16:40:08 ERROR executor.Executor: Exception in task ID 0
> java.io.FileNotFoundException: http://172.19.0.215:47530/broadcast_0
> 	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1624)
> 	at org.apache.spark.broadcast.HttpBroadcast$.read(HttpBroadcast.scala:156)
> 	at org.apache.spark.broadcast.HttpBroadcast.readObject(HttpBroadcast.scala:56)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
> 	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
> 	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
> 	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
> 	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
> 	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
> 	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
> 	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
> 	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
> 	at org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:40)
> 	at org.apache.spark.scheduler.ResultTask$.deserializeInfo(ResultTask.scala:63)
> 	at org.apache.spark.scheduler.ResultTask.readExternal(ResultTask.scala:139)
> 	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1837)
> 	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796)
> 	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
> 	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
> 	at org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:40)
> 	at org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:62)
> 	at org.apache.spark.executor.Executor$TaskRunner$$anonfun$run$1.apply$mcV$sp(Executor.scala:193)
> 	at org.apache.spark.deploy.SparkHadoopUtil.runAsUser(SparkHadoopUtil.scala:45)
> 	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:176)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:745)
> 14/06/23 16:40:08 WARN scheduler.TaskSetManager: Lost TID 0 (task 0.0:0)
> 14/06/23 16:40:08 WARN scheduler.TaskSetManager: Loss was due to java.io.FileNotFoundException
> java.io.FileNotFoundException: http://172.19.0.215:47530/broadcast_0
> 	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1624)
> 	at org.apache.spark.broadcast.HttpBroadcast$.read(HttpBroadcast.scala:156)
> 	at org.apache.spark.broadcast.HttpBroadcast.readObject(HttpBroadcast.scala:56)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
> 	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
> 	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
> 	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
> 	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
> 	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
> 	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
> 	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
> 	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
> 	at org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:40)
> 	at org.apache.spark.scheduler.ResultTask$.deserializeInfo(ResultTask.scala:63)
> 	at org.apache.spark.scheduler.ResultTask.readExternal(ResultTask.scala:139)
> 	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1837)
> 	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796)
> 	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
> 	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
> 	at org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:40)
> 	at org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:62)
> 	at org.apache.spark.executor.Executor$TaskRunner$$anonfun$run$1.apply$mcV$sp(Executor.scala:193)
> 	at org.apache.spark.deploy.SparkHadoopUtil.runAsUser(SparkHadoopUtil.scala:45)
> 	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:176)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:745)
> 14/06/23 16:40:08 ERROR scheduler.TaskSetManager: Task 0.0:0 failed 1 times; aborting
job
> 14/06/23 16:40:08 INFO scheduler.TaskSchedulerImpl: Removed TaskSet 0.0, whose tasks
have all completed, from pool 
> 14/06/23 16:40:08 INFO scheduler.DAGScheduler: Failed to run runJob at NetworkInputTracker.scala:182
> [WARNING] 
> org.apache.spark.SparkException: Job aborted: Task 0.0:0 failed 1 times (most recent
failure: Exception failure: java.io.FileNotFoundException: http://172.19.0.215:47530/broadcast_0)
> 	at org.apache.spark.scheduler.DAGScheduler$$anonfun$org$apache$spark$scheduler$DAGScheduler$$abortStage$1.apply(DAGScheduler.scala:1020)
> 	at org.apache.spark.scheduler.DAGScheduler$$anonfun$org$apache$spark$scheduler$DAGScheduler$$abortStage$1.apply(DAGScheduler.scala:1018)
> 	at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> 	at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
> 	at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$abortStage(DAGScheduler.scala:1018)
> 	at org.apache.spark.scheduler.DAGScheduler$$anonfun$processEvent$10.apply(DAGScheduler.scala:604)
> 	at org.apache.spark.scheduler.DAGScheduler$$anonfun$processEvent$10.apply(DAGScheduler.scala:604)
> 	at scala.Option.foreach(Option.scala:236)
> 	at org.apache.spark.scheduler.DAGScheduler.processEvent(DAGScheduler.scala:604)
> 	at org.apache.spark.scheduler.DAGScheduler$$anonfun$start$1$$anon$2$$anonfun$receive$1.applyOrElse(DAGScheduler.scala:190)
> 	at akka.actor.ActorCell.receiveMessage(ActorCell.scala:498)
> 	at akka.actor.ActorCell.invoke(ActorCell.scala:456)
> 	at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:237)
> 	at akka.dispatch.Mailbox.run(Mailbox.scala:219)
> 	at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:385)
> 	at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> 	at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> 	at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> 	at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> 14/06/23 16:40:09 INFO dstream.ForEachDStream: metadataCleanupDelay = 3600
> {code}
> So far, we are working on localhost. Any clue about where this error is coming from?
Any workaround to solve the issue?



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