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https://issues.apache.org/jira/browse/HADOOP-18188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira Ajisaka updated HADOOP-18188:
-----------------------------------
    Release Note: Before this improvement, "hadoop fs -touch" command threw 
PathIsDirectoryException for directory. Now the command supports directory and 
will not throw that exception.

> Support touch command for directory
> -----------------------------------
>
>                 Key: HADOOP-18188
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18188
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Akira Ajisaka
>            Assignee: Viraj Jasani
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> Currently hadoop fs -touch command cannot update the mtime and the atime of 
> directory. The feature would be useful when we check whether the filesystem 
> is ready to write or not without creating any file.



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