Reduce does not respect in-memory segment memory limit when number of on disk
segments == io.sort.factor
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Key: HADOOP-5652
URL: https://issues.apache.org/jira/browse/HADOOP-5652
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Affects Versions: 0.20.0
Reporter: Chris Douglas
Priority: Minor
If the number of on-disk segments is exactly {{io.sort.factor}}, then map
output segments may be left in memory for the reduce contrary to the
specification in {{mapred.job.reduce.input.buffer.percent}}.
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