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https://issues.apache.org/jira/browse/HDFS-14200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16740783#comment-16740783
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Íñigo Goiri commented on HDFS-14200:
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To play it safe we may want to add options to confirm or to list what is being
deleted?
> 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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