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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-40) bufferSize argument is ignored in FileSystem.create(File, boolean, int)
Date Fri, 17 Feb 2006 22:43:51 GMT
bufferSize argument is ignored in FileSystem.create(File, boolean, int)
-----------------------------------------------------------------------

         Key: HADOOP-40
         URL: http://issues.apache.org/jira/browse/HADOOP-40
     Project: Hadoop
        Type: Bug
  Components: fs  
    Reporter: Konstantin Shvachko
    Priority: Minor


org.apache.hadoop.fs.FileSystem.create(File f, boolean overwrite, int bufferSize)

ignores the input parameter bufferSize.
It passes further down the internal configuration, which includes the buffer size, but not
the parameter value.
This works fine within the file system, since everything that calls create extracts buffer
size from the same config. 
MapReduce although is probably affected by that, see 

org.apache.hadoop.io.SequenceFile.Sorter.MergeQueue.MergeQueue(int size, String outName, boolean
done)

The attached patch would fix it.

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