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Posted to hdfs-dev@hadoop.apache.org by "chencan (JIRA)" <ji...@apache.org> on 2017/06/22 07:59:00 UTC

[jira] [Created] (HDFS-12011) Add a new load balancing volume choosing policy

chencan created HDFS-12011:
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             Summary: Add a  new load balancing volume choosing policy
                 Key: HDFS-12011
                 URL: https://issues.apache.org/jira/browse/HDFS-12011
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
            Reporter: chencan


    There  are two types of volume choosing policies when choose a volume inner a datanode to write in a datablock : RoundRobinVolumeChoosingPolicy and AvailableSpaceVolumeChoosingPolicy.This two policies do not take into account the fsvolume's load. We can add a new load balancing volume choosing policy,  using existing reference in FsVolumeImpl.



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