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Posted to common-issues@hadoop.apache.org by "Akira Ajisaka (Jira)" <ji...@apache.org> on 2022/04/06 05:09:00 UTC

[jira] [Commented] (HADOOP-18188) Support touch command for directory

    [ https://issues.apache.org/jira/browse/HADOOP-18188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17517828#comment-17517828 ] 

Akira Ajisaka commented on HADOOP-18188:
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{quote}I mean if some application expects PathIsDirectoryException to be thrown for touch command used with directory, from that viewpoint this behaviour change might be treated as incompatible?
{quote}
Thank you [~vjasani] for your comment. It makes sense to me, so I will add a release note to warn the users. Anyway I'm not a fan of adding a new option because the option is not consistent with the touch command in POSIX.

> 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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