The underlying data structure, ByteArrayOutputStream,  for buffer type of Jute 
record is inappropriate
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                 Key: HADOOP-735
                 URL: http://issues.apache.org/jira/browse/HADOOP-735
             Project: Hadoop
          Issue Type: Bug
            Reporter: Runping Qi



With ByteArrayOutputStream as the underlying data structure for a buffer, the 
user is forced to convert it into a byte [] object in order to do any 
operations other than sequence append on the buffer. The convertion will create 
a new copy of bytes. That will cause huge performance problem. 

It seems BytesWritable is a better replacement.


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