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From Sherif Akoush <sherif.ako...@gmail.com>
Subject LeaseExpiredException in trunk version
Date Fri, 07 Sep 2012 16:54:47 GMT
Hi,

I am getting frequent (but not always) jobs failures when I am running
the wordcount or sort
example on a large dataset (40GB) using the trunk version (v2). They
seems to fail right at the very end (95% reduce phase). Has
anyone experienced this before? Maybe I need to set something related
to timers or number of files?

here is the error I get:

2012-09-05 14:02:50,914 ERROR [Thread-2]
org.apache.hadoop.hdfs.DFSClient: Failed to close file
/output_wiki_prov/_temporary/1/_temporary/attempt_1346843520083_0002_r_000
001_1/part-r-00001
org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException):
No lease on /output_wiki_prov/_temporary/1/_temporary/attempt_1346843
520083_0002_r_000001_1/part-r-00001 File does not exist. Holder
DFSClient_attempt_1346843520083_0002_r_000001_1_-1916714176_1 does not
have any open files.
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:2330)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:2321)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.completeFileInternal(FSNamesystem.java:2388)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.completeFile(FSNamesystem.java:2365)
        at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.complete(NameNodeRpcServer.java:526)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.complete(ClientNamenodeProtocolServerSideTranslatorPB.java:330)
        at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:42450)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:474)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1002)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1732)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1728)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1367)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1726)

        at org.apache.hadoop.ipc.Client.call(Client.java:1164)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202)
        at $Proxy10.complete(Unknown Source)
        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:601)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:163)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:82)
        at $Proxy10.complete(Unknown Source)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.complete(ClientNamenodeProtocolTranslatorPB.java:322)
        at org.apache.hadoop.hdfs.DFSOutputStream.completeFile(DFSOutputStream.java:1761)
        at org.apache.hadoop.hdfs.DFSOutputStream.close(DFSOutputStream.java:1748)
        at org.apache.hadoop.hdfs.DFSClient.closeAllFilesBeingWritten(DFSClient.java:672)
        at org.apache.hadoop.hdfs.DFSClient.close(DFSClient.java:689)
        at org.apache.hadoop.hdfs.DistributedFileSystem.close(DistributedFileSystem.java:539)
        at org.apache.hadoop.fs.FileSystem$Cache.closeAll(FileSystem.java:2386)
        at org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer.run(FileSystem.java:2403)
        at org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:54)

Many thanks,
Sherif

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