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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-487) HDFS should expose a fileid to uniquely identify a file
Date Thu, 16 Jul 2009 18:52:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12732079#action_12732079
] 

dhruba borthakur commented on HDFS-487:
---------------------------------------

> Thanks Dhruba. It looks like the specifics of why a fileid is required (or if it even
helps) depend on future features. I think it is better to wait.

Thanks Raghu.

Sanjay: given Raghu's opinion, do you really think that the HDFS-385 needs to change to use
the fileid (and not the filename).

> 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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