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https://issues.apache.org/jira/browse/HDFS-14200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16740901#comment-16740901
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Wei-Chiu Chuang commented on HDFS-14200:
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bq. The command has a very little value and I recently found out it does not 
work if encryption (EZ) is enabled. It tries to list ez, which is only allowed 
for admins.
Yeah ... found out the same a while back ago: HDFS-12484

> Add emptyTrash option to purge trash immediately
> ------------------------------------------------
>
>                 Key: HDFS-14200
>                 URL: https://issues.apache.org/jira/browse/HDFS-14200
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: Stephen O'Donnell
>            Assignee: Stephen O'Donnell
>            Priority: Major
>         Attachments: HDFS-14200.001.patch
>
>
> I have always felt the HDFS trash is missing a simple way to empty the 
> current users trash immediately. We have "expunge" but in my experience 
> supporting clusters, end users find this confusing. When most end users run 
> expunge, they really want to empty their trash immediately and get confused 
> when expunge does not do this.
> This can result in users performing somewhat dangerous "skipTrash" operations 
> on the trash to free up space. The alternative, which most users will not 
> figure out on their own is:
> # Run the expunge command once - this will move the current folder to a 
> checkpoint and remove any old checkpoints older than the retention interval
> # Wait over 1 minute and then run expunge again, overriding fs.trash.interval 
> to 1 minute using the following command hadoop fs -Dfs.trash.interval=1 
> -expunge.
> With this Jira I am proposing to add a extra command, "hdfs dfs -emptyTrash" 
> that purges everything in the logged in users Trash directories immediately.
> How would the community feel about adding this new option? I will upload a 
> patch for comments.



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