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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4955) Use InodeID to improve snapshot diff
Date Wed, 03 Jul 2013 21:45:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13699484#comment-13699484
] 

Suresh Srinivas commented on HDFS-4955:
---------------------------------------

[~decster] If you want to take up HDFS-4667 and work on it, feel free. I, [~szetszwo] or [~jingzhao]
can help with any questions you may have about Snapshots internals.
                
> Use InodeID to improve snapshot diff
> ------------------------------------
>
>                 Key: HDFS-4955
>                 URL: https://issues.apache.org/jira/browse/HDFS-4955
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Binglin Chang
>
> Currently snapshot diff doesn't handle file/dir rename very well, so distcp can't do
minimal data transfer in incremental backup. Using InodeID can uniquely identify a file, and
can help diff search algorithm.

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