Prabhu Joseph created MAPREDUCE-7370:
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Summary: Parallelize MultipleOutputs#close call
Key: MAPREDUCE-7370
URL: https://issues.apache.org/jira/browse/MAPREDUCE-7370
Project: Hadoop Map/Reduce
Issue Type: Improvement
Affects Versions: 3.3.0
Reporter: Prabhu Joseph
Assignee: Ravuri Sushma sree
This call takes more time when there are lot of files to close and there is a
high latency to close. Parallelize MultipleOutputs#close call to improve the
speed.
{code}
public void close() throws IOException {
for (RecordWriter writer : recordWriters.values()) {
writer.close(null);
}
}
{code}
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