I've seen it too. When I get this, I restart the NM, RM, and HS, and it stops happening.
I don't have a cuase yet. -Eric From: Jeffrey Naisbitt [mailto:jnais...@yahoo-inc.com] Sent: Monday, September 12, 2011 12:23 PM To: mapreduce-...@hadoop.apache.org Subject: Failing to contact Am/History for jobs I am getting an exception frequently when running my jobs on a single-node cluster. It happens with basically any job I run: sometimes the job will work, but most of the time I get this exception (in this case, I was running a simple wordcount from the examples jar - where I got the exception 4 times in a row, and then the job worked the fifth time I submitted it). 11/09/12 17:17:50 INFO mapred.YARNRunner: AppMaster capability = memory: 2048, 11/09/12 17:17:51 INFO mapred.YARNRunner: Command to launch container for ApplicationMaster is : $JAVA_HOME/bin/java -Dhadoop.root.logger=DEBUG,console -Xmx1536m org.apache.hadoop.mapreduce.v2.app.MRAppMaster 1315847180566 6 <FAILCOUNT> 1><LOG_DIR>/stdout 2><LOG_DIR>/stderr 11/09/12 17:17:51 INFO mapred.ResourceMgrDelegate: Submitted application application_1315847180566_6 to ResourceManager 11/09/12 17:17:51 INFO mapred.ClientCache: Connecting to HistoryServer at: 0.0.0.0:10020 11/09/12 17:17:51 INFO ipc.YarnRPC: Creating YarnRPC for org.apache.hadoop.yarn.ipc.HadoopYarnProtoRPC 11/09/12 17:17:51 INFO mapred.ClientCache: Connected to HistoryServer at: 0.0.0.0:10020 11/09/12 17:17:51 INFO ipc.HadoopYarnRPC: Creating a HadoopYarnProtoRpc proxy for protocol interface org.apache.hadoop.mapreduce.v2.api.MRClientProtocol 11/09/12 17:17:51 INFO mapreduce.Job: Running job: job_1315847180566_0006 11/09/12 17:17:52 INFO mapreduce.Job: map 0% reduce 0% 11/09/12 17:18:00 INFO mapred.ClientServiceDelegate: Tracking Url of JOB is 98.139.92.64:55361 11/09/12 17:18:00 INFO mapred.ClientServiceDelegate: Connecting to 98.139.92.64:43465 11/09/12 17:18:00 INFO ipc.YarnRPC: Creating YarnRPC for org.apache.hadoop.yarn.ipc.HadoopYarnProtoRPC 11/09/12 17:18:00 INFO ipc.HadoopYarnRPC: Creating a HadoopYarnProtoRpc proxy for protocol interface org.apache.hadoop.mapreduce.v2.api.MRClientProtocol 11/09/12 17:18:01 INFO mapred.ClientServiceDelegate: Failed to contact AM/History for job job_1315847180566_0006 Will retry.. java.lang.reflect.UndeclaredThrowableException at org.apache.hadoop.mapreduce.v2.api.impl.pb.client.MRClientProtocolPBClientImpl.getTaskAttemptCompletionEvents(MRClientProtocolPBClientImpl.java:179) 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.mapred.ClientServiceDelegate.invoke(ClientServiceDelegate.java:237) at org.apache.hadoop.mapred.ClientServiceDelegate.getTaskCompletionEvents(ClientServiceDelegate.java:276) at org.apache.hadoop.mapred.YARNRunner.getTaskCompletionEvents(YARNRunner.java:547) at org.apache.hadoop.mapreduce.Job.getTaskCompletionEvents(Job.java:540) at org.apache.hadoop.mapreduce.Job.monitorAndPrintJob(Job.java:1144) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1092) at org.apache.hadoop.examples.WordCount.main(WordCount.java:84) 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.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:72) at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:144) at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:68) 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.util.RunJar.main(RunJar.java:189) Caused by: com.google.protobuf.ServiceException: java.io.IOException: Call to /98.139.92.64:43465 failed on local exception: java.io.EOFException at org.apache.hadoop.yarn.ipc.ProtoOverHadoopRpcEngine$Invoker.invoke(ProtoOverHadoopRpcEngine.java:139) at $Proxy8.getTaskAttemptCompletionEvents(Unknown Source) at org.apache.hadoop.mapreduce.v2.api.impl.pb.client.MRClientProtocolPBClientImpl.getTaskAttemptCompletionEvents(MRClientProtocolPBClientImpl.java:172) ... 23 more Caused by: java.io.IOException: Call to /98.139.92.64:43465 failed on local exception: java.io.EOFException at org.apache.hadoop.ipc.Client.wrapException(Client.java:1119) at org.apache.hadoop.ipc.Client.call(Client.java:1087) at org.apache.hadoop.yarn.ipc.ProtoOverHadoopRpcEngine$Invoker.invoke(ProtoOverHadoopRpcEngine.java:136) ... 25 more Caused by: java.io.EOFException at java.io.DataInputStream.readInt(DataInputStream.java:375) at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:816) at org.apache.hadoop.ipc.Client$Connection.run(Client.java:754) 11/09/12 17:18:01 INFO mapreduce.Job: Job job_1315847180566_0006 failed with state FAILED 11/09/12 17:18:01 INFO mapreduce.Job: Counters: 0
