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https://issues.apache.org/jira/browse/HDFS-15982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17359902#comment-17359902
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Viraj Jasani commented on HDFS-15982:
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{quote}delete(path) MUST be a no-op if the path isn't there. The way to view
the semantics of the call is that delete(path) == true implies the path is no
longer present.
{quote}
[[email protected]] It seems that we don't follow this everywhere.
DFS client (NameNode -> FSNameSystem#delete) doesn't follow this and I just
quickly tested Http FS with WebHdfs and LocalFS, and this semantic is not
followed. For non existing file, FS#delete returns false.
> Deleted data using HTTP API should be saved to the trash
> --------------------------------------------------------
>
> Key: HDFS-15982
> URL: https://issues.apache.org/jira/browse/HDFS-15982
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: hdfs, hdfs-client, httpfs, webhdfs
> Reporter: Bhavik Patel
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Attachments: Screenshot 2021-04-23 at 4.19.42 PM.png, Screenshot
> 2021-04-23 at 4.36.57 PM.png
>
> Time Spent: 13h 20m
> Remaining Estimate: 0h
>
> If we delete the data from the Web UI then it should be first moved to
> configured/default Trash directory and after the trash interval time, it
> should be removed. currently, data directly removed from the system[This
> behavior should be the same as CLI cmd]
> This can be helpful when the user accidentally deletes data from the Web UI.
> Similarly we should provide "Skip Trash" option in HTTP API as well which
> should be accessible through Web UI.
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