Apache Spark: ERROR local class incompatible when initiating a SparkContext class
You say you are running with a Spark 1.4.0 cluster but your build.sbt
is building with 1.2.0. Please change to this in your build.sbt:
libraryDependencies += "org.apache.spark" %% "spark-core" % "1.4.0"
keypoint
To make each day count int memory=0; int happiness=0; int sadness=0; while(alive){ memory++; happiness++; sadness++; } memory=0; happiness=0; sadness=0; return null;
Updated on June 13, 2022Comments
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keypoint almost 2 years
Hi I'm runnign example on Spark site at http://spark.apache.org/docs/1.2.0/quick-start.html#self-contained-applications
spark version: spark-1.4.0
sbt version: 0.13.8
And I ran command "sbt run" and got error "java.io.InvalidClassException: org.apache.spark.deploy.ApplicationDescription; local class incompatible".
This application fails at "val sc = new SparkContext(conf)", when I'm trying to initiate a SparkContext class. I've googled around and see this post but I didn't use hadoop-client.
Could you please check it out? My guess is a version issue in build.sbt. Thank you very much.
update: I've try to submit python application and works fine which means Spark cluster is OK.
scala code is below:
/* SimpleApp.scala */ import org.apache.spark.SparkContext import org.apache.spark.SparkContext._ import org.apache.spark.SparkConf object SimpleApp { def main(args: Array[String]) { val logFile = "YOUR_SPARK_HOME/README.md" // Should be some file on your system val conf = new SparkConf().setAppName("Simple Application") val sc = new SparkContext(conf) val logData = sc.textFile(logFile, 2).cache() val numAs = logData.filter(line => line.contains("a")).count() val numBs = logData.filter(line => line.contains("b")).count() println("Lines with a: %s, Lines with b: %s".format(numAs, numBs)) } }
built.sbt is below:
name := "Simple Project" version := "1.0" scalaVersion := "2.10.4" libraryDependencies += "org.apache.spark" %% "spark-core" % "1.2.0"
error message is below:
15/08/27 05:23:38 ERROR Remoting: org.apache.spark.deploy.ApplicationDescription; local class incompatible: stream classdesc serialVersionUID = 7674242335164700840, local class serialVersionUID = -7685200927816255400 java.io.InvalidClassException: org.apache.spark.deploy.ApplicationDescription; local class incompatible: stream classdesc serialVersionUID = 7674242335164700840, local class serialVersionUID = -7685200927816255400 at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:617) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1622) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771) 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 akka.serialization.JavaSerializer$$anonfun$1.apply(Serializer.scala:136) at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57) at akka.serialization.JavaSerializer.fromBinary(Serializer.scala:136) at akka.serialization.Serialization$$anonfun$deserialize$1.apply(Serialization.scala:104) at scala.util.Try$.apply(Try.scala:161) at akka.serialization.Serialization.deserialize(Serialization.scala:98) at akka.remote.serialization.MessageContainerSerializer.fromBinary(MessageContainerSerializer.scala:63) at akka.serialization.Serialization$$anonfun$deserialize$1.apply(Serialization.scala:104) at scala.util.Try$.apply(Try.scala:161) at akka.serialization.Serialization.deserialize(Serialization.scala:98) at akka.remote.MessageSerializer$.deserialize(MessageSerializer.scala:23) at akka.remote.DefaultMessageDispatcher.payload$lzycompute$1(Endpoint.scala:58) at akka.remote.DefaultMessageDispatcher.payload$1(Endpoint.scala:58) at akka.remote.DefaultMessageDispatcher.dispatch(Endpoint.scala:76) at akka.remote.EndpointReader$$anonfun$receive$2.applyOrElse(Endpoint.scala:937) at akka.actor.Actor$class.aroundReceive(Actor.scala:465) at akka.remote.EndpointActor.aroundReceive(Endpoint.scala:415) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516) at akka.actor.ActorCell.invoke(ActorCell.scala:487) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238) at akka.dispatch.Mailbox.run(Mailbox.scala:220) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)