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java.lang.InterruptedException: 	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:400)	at java.util.concurrent.FutureTask.get(FutureTask.java:187)	at org.apache.hadoop.ipc.Client$Connection.sendRpcRequest(Client.java:1029)	at org.apache.hadoop.ipc.Client.call(Client.java:1383)	at org.apache.hadoop.ipc.Client.call(Client.java:1363)	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)	at com.sun.proxy.$Proxy16.getFileInfo(Unknown Source)	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:701)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)	at com.sun.proxy.$Proxy17.getFileInfo(Unknown Source)	at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1780)	at org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1165)	at org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1161)	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)	at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1161)	at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1398)	at org.apache.spark.util.FileLogger.createLogDir(FileLogger.scala:108)	at org.apache.spark.util.FileLogger.start(FileLogger.scala:100)	at org.apache.spark.scheduler.EventLoggingListener.start(EventLoggingListener.scala:74)	at org.apache.spark.SparkContext.(SparkContext.scala:323)	at org.apache.spark.api.java.JavaSparkContext.(JavaSparkContext.scala:56)	at org.apache.spark.examples.JavaWordCount.main(JavaWordCount.java:44)	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 org.apache.spark.deploy.yarn.ApplicationMaster$$anon$2.run(ApplicationMaster.scala:460)