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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7878) API - expose an unique file identifier
Date Wed, 04 Mar 2015 22:06:38 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin updated HDFS-7878:
-----------------------------------
    Status: Patch Available  (was: Open)

> API - expose an unique file identifier
> --------------------------------------
>
>                 Key: HDFS-7878
>                 URL: https://issues.apache.org/jira/browse/HDFS-7878
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Sergey Shelukhin
>         Attachments: HDFS-7878.patch
>
>
> See HDFS-487.
> Even though that is resolved as duplicate, the ID is actually not exposed by the JIRA
it supposedly duplicates.
> INode ID for the file should be easy to expose; alternatively ID could be derived from
block IDs, to account for appends...
> This is useful e.g. for cache key by file, to make sure cache stays correct when file
is overwritten.



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