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https://issues.apache.org/jira/browse/MAPREDUCE-7370?focusedWorklogId=789333&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-789333
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ASF GitHub Bot logged work on MAPREDUCE-7370:
---------------------------------------------

                Author: ASF GitHub Bot
            Created on: 10/Jul/22 18:26
            Start Date: 10/Jul/22 18:26
    Worklog Time Spent: 10m 
      Work Description: ashutoshcipher commented on PR #4248:
URL: https://github.com/apache/hadoop/pull/4248#issuecomment-1179776546

   @cnauroth - I have made the changes, Can you please have a look at latest 
commit?




Issue Time Tracking
-------------------

    Worklog Id:     (was: 789333)
    Time Spent: 2h  (was: 1h 50m)

> 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: Ashutosh Gupta
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 2h
>  Remaining Estimate: 0h
>
> 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}
> Idea is from [~ste...@apache.org]



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