DFS client lost lease during writing into DFS files
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                 Key: HADOOP-2669
                 URL: https://issues.apache.org/jira/browse/HADOOP-2669
             Project: Hadoop
          Issue Type: Bug
          Components: dfs
            Reporter: Runping Qi



I have a program that reads a block compressed sequence file, does some 
processing on the records and writes the
processed records into another  block compressed sequence file.
During execution of the program, I got the following exception: 

org.apache.hadoop.ipc.RemoteException: 
org.apache.hadoop.dfs.LeaseExpiredException: No lease on xxxxx/part-00000
        at 
org.apache.hadoop.dfs.FSNamesystem.getAdditionalBlock(FSNamesystem.java:976)
        at org.apache.hadoop.dfs.NameNode.addBlock(NameNode.java:293)
        at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:379)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:596)

        at org.apache.hadoop.ipc.Client.call(Client.java:482)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:184)
        at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        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:82)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
        at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source)
        at 
org.apache.hadoop.dfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:1554)
        at 
org.apache.hadoop.dfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:1500)
        at 
org.apache.hadoop.dfs.DFSClient$DFSOutputStream.endBlock(DFSClient.java:1626)
        at 
org.apache.hadoop.dfs.DFSClient$DFSOutputStream.writeChunk(DFSClient.java:1602)
        at 
org.apache.hadoop.fs.FSOutputSummer.writeChecksumChunk(FSOutputSummer.java:140)
        at org.apache.hadoop.fs.FSOutputSummer.write1(FSOutputSummer.java:100)
        at org.apache.hadoop.fs.FSOutputSummer.write(FSOutputSummer.java:86)
        at 
org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:39)
        at java.io.DataOutputStream.write(DataOutputStream.java:90)
        at 
org.apache.hadoop.io.SequenceFile$BlockCompressWriter.writeBuffer(SequenceFile.java:1181)
        at 
org.apache.hadoop.io.SequenceFile$BlockCompressWriter.sync(SequenceFile.java:1198)

        at 
org.apache.hadoop.io.SequenceFile$BlockCompressWriter.append(SequenceFile.java:1248)
        at 
org.apache.hadoop.mapred.SequenceFileOutputFormat$1.write(SequenceFileOutputFormat.java:69)
     

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