map-reduce job overhead is too high
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Key: HADOOP-55
URL: http://issues.apache.org/jira/browse/HADOOP-55
Project: Hadoop
Type: Bug
Components: mapred
Versions: 0.2
Reporter: Yoram Arnon
Priority: Minor
map-reduce job overhead is too high. Running a null map-reduce job, with no
input, no intermediate data and no output, on a several-hundred node cluster,
takes several minutes, rather than several seconds.
Enhanced distribution, launching and monitoring mechanisms should reduce the
overhead to levels that match human online patience for short jobs.
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