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Posted to hdfs-dev@hadoop.apache.org by "Binglin Chang (JIRA)" <ji...@apache.org> on 2013/07/03 20:22:20 UTC

[jira] [Created] (HDFS-4955) Use InodeID to improve snapshot diff

Binglin Chang created HDFS-4955:
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             Summary: 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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