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From "chencan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12011) Add a new load balancing volume choosing policy
Date Sat, 24 Jun 2017 04:09:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

chencan updated HDFS-12011:
---------------------------
    Attachment: HADOOP-12011.002.pathch

> 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
>            Assignee: chencan
>         Attachments: HADOOP-12011.002.pathch, HADOOP-12011.patch
>
>
>     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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