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From "Bochun Bai (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-2571) CombineFileInputFormat.getSplits throws a java.lang.ArrayStoreException
Date Tue, 07 Jun 2011 04:17:58 GMT
CombineFileInputFormat.getSplits throws a java.lang.ArrayStoreException
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                 Key: MAPREDUCE-2571
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2571
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 0.21.0
            Reporter: Bochun Bai
            Priority: Blocker


The getSplits methods of 
  org.apache.hadoop.mapred.lib.CombineFileInputFormat 
not work.

...mapred.lib.CombineFileInputFormat(0.20-style) is a proxy for ...mapreduce.lib.input.CombineFileInputFormat(0.21-style)

The 0.21-style getSplits returns ArrayList<...mapreduce.lib.input.CombineFileSplit>
and the 0.20-style delegation calls toArray(...mapred.InputSplit[])

The ...mapreduce.lib.input.CombineFileSplit is based on ...mapreduce.InputSplit
and ...mapred.InputSplit is a interface, not a super-class of ...mapreduce.InputSplit



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