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Posted to hdfs-dev@hadoop.apache.org by "Benoy Antony (JIRA)" <ji...@apache.org> on 2014/05/22 03:34:38 UTC

[jira] [Created] (HDFS-6441) Add ability to Ignore few datanodes while balancing

Benoy Antony created HDFS-6441:
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             Summary: Add ability to Ignore few datanodes while balancing
                 Key: HDFS-6441
                 URL: https://issues.apache.org/jira/browse/HDFS-6441
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: balancer
    Affects Versions: 2.4.0
            Reporter: Benoy Antony
            Assignee: Benoy Antony


In some use cases, it is desirable to ignore a few data nodes  while balancing. The administrator should be able to specify a list of data nodes in a file similar to the hosts file and the balancer should ignore these data nodes while balancing so that no blocks are added/removed on these nodes.



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