Avoid the use of Strings to improve the performance of hadoop streaming
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Key: HADOOP-499
URL: http://issues.apache.org/jira/browse/HADOOP-499
Project: Hadoop
Issue Type: Improvement
Components: contrib/streaming
Affects Versions: 0.5.0
Reporter: Hairong Kuang
Assigned To: Hairong Kuang
Fix For: 0.6.0
In hadoop streaming, a record is represented as a String for I/O and is
encoded as UTF8 for map/reduce. A record has to be converted between String and
UTF8 back and forth multiple times and this wastes CPU time.
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