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Posted to hdfs-issues@hadoop.apache.org by "Shilun Fan (Jira)" <ji...@apache.org> on 2024/01/28 01:45:00 UTC

[jira] [Updated] (HDFS-17171) CONGESTION_RATIO should be configurable

     [ https://issues.apache.org/jira/browse/HDFS-17171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan updated HDFS-17171:
------------------------------
    Hadoop Flags: Reviewed

> CONGESTION_RATIO should be configurable
> ---------------------------------------
>
>                 Key: HDFS-17171
>                 URL: https://issues.apache.org/jira/browse/HDFS-17171
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 3.4.0
>            Reporter: farmmamba
>            Assignee: farmmamba
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>
> Currently, The valuee of DataNode#CONGESTION_RATIO is 1.5 and it is not configurable.
> When the average load of a datanode in last one minute is higer than CONGESTION_RATIO * NUM_CORES, this datanode will be regard as CONGESTED. 
> In most real production envs,  the default value 1.5 seems not appropriate. So ,we should change this value to be configurable.



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