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Posted to hdfs-dev@hadoop.apache.org by "Lei (Eddy) Xu (JIRA)" <ji...@apache.org> on 2014/07/22 22:36:40 UTC

[jira] [Created] (HDFS-6729) Support maintenance mode for DN

Lei (Eddy) Xu created HDFS-6729:
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             Summary: Support maintenance mode for DN
                 Key: HDFS-6729
                 URL: https://issues.apache.org/jira/browse/HDFS-6729
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
    Affects Versions: 2.4.0
            Reporter: Lei (Eddy) Xu


We need a maintenance mode for a DN so that maintenance work can be carried out on the DN without having to decommission it or the DN being marked as dead.



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