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https://issues.apache.org/jira/browse/HDFS-487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13435544#comment-13435544
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Aleksandr Levchuk commented on HDFS-487:
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Is fileid in the foreseeable future?
                
> HDFS should expose a fileid to uniquely identify a file
> -------------------------------------------------------
>
>                 Key: HDFS-487
>                 URL: https://issues.apache.org/jira/browse/HDFS-487
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>         Attachments: fileid1.txt
>
>
> HDFS should expose a id that uniquely identifies a file. This helps in 
> developing  applications that work correctly even when files are moved from 
> one directory to another. A typical use-case is to make the Pluggable Block 
> Placement Policy (HDFS-385) use fileid instead of filename.

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