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https://issues.apache.org/jira/browse/MAPREDUCE-7401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved MAPREDUCE-7401.
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    Resolution: Won't Fix

> Optimize liststatus for better performance by using recursive listing
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-7401
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7401
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 3.3.3
>            Reporter: Ashutosh Gupta
>            Assignee: Ashutosh Gupta
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> This change adds recursive listing APIs to FileSystem. The purpose is to 
> enable different FileSystem implementations optimize on the listStatus calls 
> if they can. Default implementation is provided for normal FileSystem 
> implementation which does level by level listing for each directory.



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