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Posted to hdfs-dev@hadoop.apache.org by "Lin Yiqun (JIRA)" <ji...@apache.org> on 2015/11/04 16:13:27 UTC

[jira] [Created] (HDFS-9375) Set balancer bandwidth for specific node

Lin Yiqun created HDFS-9375:
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             Summary: Set balancer bandwidth for specific node
                 Key: HDFS-9375
                 URL: https://issues.apache.org/jira/browse/HDFS-9375
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: balancer & mover
    Affects Versions: 2.7.1
            Reporter: Lin Yiqun
            Assignee: Lin Yiqun


Now even though the balancer is impove a lot, but In some cases that is still slow. For example when the cluster is extended,the new nodes all need balancer datas from existed nodes.In order to improve the balancer velocity,generally,we will use {{setBalancerBandwidth}} of {{dfsadmin}} command.But this is set for every node, obviously,we can increase more bandwidth for new nodes because these nodes lacking of data.When the new nodes balancer data enough,we can let new nodes to work.So we can define a new clientDatanode interface to set specific node's bandwidth.



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