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Posted to hdfs-issues@hadoop.apache.org by "zhaoyunjiong (JIRA)" <ji...@apache.org> on 2015/02/10 03:56:34 UTC

[jira] [Created] (HDFS-7759) Provide existence-of-a-second-file implementation for pinning blocks on Datanode

zhaoyunjiong created HDFS-7759:
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             Summary: Provide existence-of-a-second-file implementation for pinning blocks on Datanode
                 Key: HDFS-7759
                 URL: https://issues.apache.org/jira/browse/HDFS-7759
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
            Reporter: zhaoyunjiong
            Assignee: zhaoyunjiong


Provide existence-of-a-second-file implementation for pinning blocks on Datanode  and let admin choosing the mechanism(use sticky bit or existence-of-a-second-file) to pinning blocks on favored Datanode.




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