Hi, I am running pre-built spark 0.8 CDH4 binary downloaded from spark site with my application and it fails upon saving RDD as text file into HDFS
This code works as expected without any exception in another env that uses pre-built spark 0.8 Hadoop 1 but against native apache hadoop 1.2.1. I followed the steps in http://spark.incubator.apache.org/docs/latest/hadoop-third-party-distributions.html In my spark-env.sh I have these settings copied to all nodes. export SPARK_JAVA_OPTS+=" -Dspark.local.dir=/tmp/spark" export HADOOP_CONF_DIR=/etc/hadoop/conf cluster logs not showing any errors. Any help in this exception? org.apache.hadoop.ipc.RemoteException: Server IPC version 7 cannot communicate with client version 4 at org.apache.hadoop.ipc.Client.call(Client.java:1113) at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229) at $Proxy74.getProtocolVersion(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:85) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:62) at $Proxy74.getProtocolVersion(Unknown Source) at org.apache.hadoop.ipc.RPC.checkVersion(RPC.java:422) at org.apache.hadoop.hdfs.DFSClient.createNamenode(DFSClient.java:183) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:281) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:245) at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:100) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1446) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:67) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1464) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:263) at org.apache.hadoop.fs.Path.getFileSystem(Path.java:187) at org.apache.hadoop.mapred.SparkHadoopWriter$.createPathFromString(SparkHadoopWriter.scala:194) at org.apache.spark.rdd.PairRDDFunctions.saveAsHadoopFile(PairRDDFunctions.scala:632) at org.apache.spark.rdd.PairRDDFunctions.saveAsHadoopFile(PairRDDFunctions.scala:523) at org.apache.spark.rdd.RDD.saveAsTextFile(RDD.scala:818) at org.apache.spark.api.java.JavaRDDLike$class.saveAsTextFile(JavaRDDLike.scala:331) at org.apache.spark.api.java.JavaRDD.saveAsTextFile(JavaRDD.scala:25) at com.dell.omdb.service.DatasetServiceImpl.addDataSet(DatasetServiceImpl.java:239) at com.dell.omdb.rest.DatasetResource.createDataset(DatasetResource.java:59) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:699) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:447) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:556) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1038) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:374) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:972) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:363) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:483) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:931) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:992) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:856) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:662) Thanks, Hussam
