I'm running a Spark cluster. (Spark-0.9.0_SNAPSHOT).
I connect to the Spark cluster from the spark-shell. I can see the Spark
web UI on n001:8080 and it shows that the master is running on
spark://n001:7077
However, when I try to connect to it using a standalone Scala program but
I'm getting an exception which says that I cannot connect to the
This is how I'm creating the Spark context in my Scala program.
val sc = new SparkContext(*"spark://n001:7077"*, "Simple
Twitter Analysis",
"/home/myuserid/incubator-spark",List("target/scala-2.10/simple-project_2.10-1.0.jar"))
And this is exception I'm getting.
14/02/05 10:05:20 INFO scheduler.DAGScheduler: Submitting Stage 1
(MapPartitionsRDD[4] at reduceByKey at SimpleApp.scala:14), which has no
missing parents
14/02/05 10:05:20 INFO scheduler.DAGScheduler: Submitting 2 missing tasks
from Stage 1 (MapPartitionsRDD[4] at reduceByKey at SimpleApp.scala:14)
14/02/05 10:05:20 INFO scheduler.TaskSchedulerImpl: Adding task set 1.0
with 2 tasks
14/02/05 10:05:35 WARN scheduler.TaskSchedulerImpl: Initial job has not
accepted any resources; check your cluster UI to ensure that workers are
registered and have sufficient memory
14/02/05 10:05:39 INFO client.AppClient$ClientActor: Connecting to master
spark://n001:7077...
*14/02/05 10:05:50 WARN scheduler.TaskSchedulerImpl: Initial job has not
accepted any resources; check your cluster UI to ensure that workers are
registered and have sufficient memory*
14/02/05 10:05:59 INFO client.AppClient$ClientActor: Connecting to master
spark://n001:7077...
14/02/05 10:06:05 WARN scheduler.TaskSchedulerImpl: Initial job has not
accepted any resources; check your cluster UI to ensure that workers are
registered and have sufficient memory
*14/02/05 10:06:19 ERROR client.AppClient$ClientActor: All masters are
unresponsive! Giving up.*
*14/02/05 10:06:19 ERROR cluster.SparkDeploySchedulerBackend: Spark cluster
looks dead, giving up.*
14/02/05 10:06:19 INFO scheduler.TaskSchedulerImpl: Remove TaskSet 1.0 from
pool
*14/02/05 10:06:19 INFO scheduler.DAGScheduler: Failed to run count at
SimpleApp.scala:16*
*[error] (run-main) org.apache.spark.SparkException: Job aborted: Spark
cluster looks down*
*org.apache.spark.SparkException: Job aborted: Spark cluster looks down*
at
org.apache.spark.scheduler.DAGScheduler$$anonfun$org$apache$spark$scheduler$DAGScheduler$$abortStage$1.apply(DAGScheduler.scala:1028)
at
org.apache.spark.scheduler.DAGScheduler$$anonfun$org$apache$spark$scheduler$DAGScheduler$$abortStage$1.apply(DAGScheduler.scala:1026)
at
scala.collection.mutable.ResizableArray$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$$abortStage(DAGScheduler.scala:1026)
at
org.apache.spark.scheduler.DAGScheduler$$anonfun$processEvent$10.apply(DAGScheduler.scala:619)
at
org.apache.spark.scheduler.DAGScheduler$$anonfun$processEvent$10.apply(DAGScheduler.scala:619)
at scala.Option.foreach(Option.scala:236)
at
org.apache.spark.scheduler.DAGScheduler.processEvent(DAGScheduler.scala:619)
at
org.apache.spark.scheduler.DAGScheduler$$anonfun$start$1$$anon$2$$anonfun$receive$1.applyOrElse(DAGScheduler.scala:207)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:498)
at akka.actor.ActorCell.invoke(ActorCell.scala:456)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:237)
at akka.dispatch.Mailbox.run(Mailbox.scala:219)
at
akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:262)
at
scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:975)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1478)
at
scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)
[trace] Stack trace suppressed: run last compile:run for the full output.
14/02/05 10:06:19 INFO network.ConnectionManager: Selector thread was
interrupted!
java.lang.RuntimeException: Nonzero exit code: 1
at scala.sys.package$.error(package.scala:27)
[trace] Stack trace suppressed: run last compile:run for the full output.
[error] (compile:run) Nonzero exit code: 1
[error] Total time: 63 s, completed Feb 5, 2014 10:06:19 AM
