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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-2121) Unexpected IOException in DFSOutputStream.close()
Date Mon, 29 Oct 2007 22:32:51 GMT
Unexpected IOException in DFSOutputStream.close()
-------------------------------------------------

                 Key: HADOOP-2121
                 URL: https://issues.apache.org/jira/browse/HADOOP-2121
             Project: Hadoop
          Issue Type: Bug
            Reporter: Raghu Angadi
             Fix For: 0.14.3


While running a test with datanodes with disk space limitations, Hairong noticed many IOExceptions
like this :
{noformat}
java.io.IOException: Mismatch in writeChunk() args
 at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.writeChunk(DFSClient.java:1575)
 at org.apache.hadoop.fs.FSOutputSummer.writeChecksumChunk(FSOutputSummer.java:140)
 at org.apache.hadoop.fs.FSOutputSummer.flushBuffer(FSOutputSummer.java:122)
 at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.close(DFSClient.java:1715)
 at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:49)
 at org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:64)
 at org.apache.hadoop.io.SequenceFile$Writer.close(SequenceFile.java:918)
 at org.apache.hadoop.mapred.SequenceFileOutputFormat$1.close(SequenceFileOutputFormat.java:72)
 at org.apache.hadoop.mapred.MapTask$DirectMapOutputCollector.close(MapTask.java:232)
 at org.apache.hadoop.mapred.MapTask.run(MapTask.java:197)
 at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1935)
{noformat}

I will submit a patch. With the patch, we will still see an IOException, but an expected one.

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