Raymond Liu created MAPREDUCE-5491:
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Summary: DFSIO do not initialize write buffer correctly
Key: MAPREDUCE-5491
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5491
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: benchmarks
Affects Versions: trunk
Reporter: Raymond Liu
Assignee: Raymond Liu
In DFSIO test, the IOMapperBase will set bufferSize in configure method, while
writeMapper, appendMapper etc use bufferSize to initialize buffer in the
constructor. This will lead to buffer not initialized at all. It is ok for non
compression route, while compression is used, the output data size will be very
small due to all 0 in buffer.
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