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From "Krishna Ramachandran (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-2018) TeraSort example fails in trunk
Date Tue, 17 Aug 2010 22:53:23 GMT
TeraSort example fails in trunk

                 Key: MAPREDUCE-2018
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2018
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: examples
    Affects Versions: 0.22.0
         Environment: Compile, build  and run from trunk terasort example using several random
files as input. Terasort will fail 
            Reporter: Krishna Ramachandran

Exceptions are thrown while computing splits near the end of file - typically when the number
of bytes read is smaller than RECORD_LENGTH

10/08/17 22:44:17 WARN conf.Configuration: mapred.task.id is deprecated. Instead, use mapreduce.task.attempt.id
10/08/17 22:44:17 INFO input.FileInputFormat: Total input paths to process : 1
Spent 19ms computing base-splits.
Spent 2ms computing TeraScheduler splits.
Computing input splits took 22ms
Sampling 1 splits of 1
Got an exception while reading splits java.io.EOFException: read past eof
        at org.apache.hadoop.examples.terasort.TeraInputFormat$TeraRecordReader.nextKeyValue(TeraInputFormat.java:267)
        at org.apache.hadoop.examples.terasort.TeraInputFormat$1.run(TeraInputFormat.java:181)

TeraInoutFormat I believe assumes the file sizes are exact multiples of RECORD_LENGTH

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