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https://issues.apache.org/jira/browse/HDFS-10352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15266174#comment-15266174
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Eric Lin commented on HDFS-10352:
---------------------------------

Hi [~linyiqun], Thanks for your comment. 

You have a valid point. Maybe we can create another getAccessTime() with 
different number of parameters. Default to not checking children files, but if 
forced, the code can check accordingly.

I understand its potential issue here if there are too many files under the 
directory, but this is still a handy feature that can benefit some users, and 
the edge case probably won't happen often.

Thanks

> Allow users to get last access time of a given directory
> --------------------------------------------------------
>
>                 Key: HDFS-10352
>                 URL: https://issues.apache.org/jira/browse/HDFS-10352
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 2.6.4
>            Reporter: Eric Lin
>            Priority: Minor
>
> Currently FileStatus.getAccessTime() function will return 0 if path is a 
> directory, it would be ideal that if a directory path is passed, the code 
> will go through all the files under the directory and return the MAX access 
> time of all the files.



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