【发布时间】:2014-10-30 05:27:51
【问题描述】:
Spark 小伙伴们,我对 Spark 还很陌生,所以我确实希望能得到你们的帮助。
我正在尝试从我的笔记本电脑上安排 Spark 集群上非常简单的工作。尽管它有效,但当我使用./spark-submit 提交它时,当我尝试以编程方式执行它时,它会引发异常。
环境: - Spark - 1 个主节点和 2 个工作节点(独立模式)。 Spark 未编译,但已下载二进制文件。星火版本 - 1.0.2 - java版本“1.7.0_45” - 应用程序 jar 无处不在(在同一位置的客户端和工作节点上); - README.md 文件也被复制到每个节点;
我正在尝试运行的应用程序:
val logFile = "/user/vagrant/README.md"
val conf = new SparkConf()
conf.setMaster("spark://192.168.33.50:7077")
conf.setAppName("Simple App")
conf.setJars(List("file:///user/vagrant/spark-1.0.2-bin-hadoop1/bin/hello-apache-spark_2.10-1.0.0-SNAPSHOT.jar"))
conf.setSparkHome("/user/vagrant/spark-1.0.2-bin-hadoop1")
val sc = new SparkContext(conf)
val logData = sc.textFile(logFile, 2).cache()
...
所以问题是,这个应用程序在集群上成功运行,当我这样做时:
./spark-submit --class com.paycasso.SimpleApp --master spark://192.168.33.50:7077 --deploy-mode client file:///home/vagrant/spark-1.0.2-bin-hadoop1/bin/hello-apache-spark_2.10-1.0.0-SNAPSHOT.jar
但它不起作用,当我尝试通过调用sbt run 以编程方式执行相同操作时
这是我在主节点上获得的堆栈跟踪:
14/09/04 15:09:44 ERROR Remoting: org.apache.spark.deploy.ApplicationDescription; local class incompatible: stream classdesc serialVersionUID = -6451051318873184044, local class serialVersionUID = 583745679236071411
java.io.InvalidClassException: org.apache.spark.deploy.ApplicationDescription; local class incompatible: stream classdesc serialVersionUID = -6451051318873184044, local class serialVersionUID = 583745679236071411
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:58)
at akka.serialization.Serialization$$anonfun$deserialize$1.apply(Serialization.scala:104)
at scala.util.Try$.apply(Try.scala:161)
at akka.serialization.Serialization.deserialize(Serialization.scala:98)
at akka.remote.MessageSerializer$.deserialize(MessageSerializer.scala:23)
at akka.remote.DefaultMessageDispatcher.payload$lzycompute$1(Endpoint.scala:55)
at akka.remote.DefaultMessageDispatcher.payload$1(Endpoint.scala:55)
at akka.remote.DefaultMessageDispatcher.dispatch(Endpoint.scala:73)
at akka.remote.EndpointReader$$anonfun$receive$2.applyOrElse(Endpoint.scala:764)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:498)
at akka.actor.ActorCell.invoke(ActorCell.scala:456)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:237)
at akka.dispatch.Mailbox.run(Mailbox.scala:219)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java: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)
有什么办法可以解决这个问题? 提前谢谢你。
【问题讨论】:
-
你试过用
sbt run在本地运行它吗? -
感谢如来的帮助。是的,我已经用 local[10] 在本地尝试过——它有效。这就是为什么它看起来很奇怪,那个非常简单的例子在集群上运行起来如此困难
-
@Dr.Khu :我也想做同样的事情。你上面的程序提交一个jar到spark-submit?我有点困惑。请帮忙。
-
是的,./spark-submit 是在集群上运行分布式作业的一种方式。我刚刚指出,通过这种方式我能够运行这项工作,但我需要在不使用 ./spark-submit 脚本的情况下这样做
标签: apache-spark