[jira] [Updated] (HDFS-17210) Optimize AvailableSpaceBlockPlacementPolicy

["Shilun Fan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-17210?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan updated HDFS-17210:
------------------------------
    Target Version/s: 3.4.0

> Optimize AvailableSpaceBlockPlacementPolicy
> -------------------------------------------
>
>                 Key: HDFS-17210
>                 URL: https://issues.apache.org/jira/browse/HDFS-17210
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs
>    Affects Versions: 3.3.6
>            Reporter: Fei Guo
>            Assignee: guophilipse
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>
> for now ,we may have many nodes usage over 85%, some nodes'usage have been over 90%, if we choose three nodes as nodeA-97%,nodeB-98%,nodeC-99%, actually i don't want nodeC(99%) be choosen, for nodeC usage is really high , even random chance ,nodeC will reach 100% soon, so we can directly choose the less usage node(nodeA) if all nodes's usage are over 95%(just a example)



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