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Posted to hdfs-issues@hadoop.apache.org by "Shilun Fan (Jira)" <ji...@apache.org> on 2024/02/11 08:07:00 UTC

[jira] [Updated] (HDFS-15821) Add metrics for in-service datanodes

     [ https://issues.apache.org/jira/browse/HDFS-15821?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan updated HDFS-15821:
------------------------------
          Component/s: metrics
         Hadoop Flags: Reviewed
     Target Version/s: 3.2.3, 3.3.1, 3.4.0
    Affects Version/s: 3.2.3
                       3.3.1
                       3.4.0

> Add metrics for in-service datanodes
> ------------------------------------
>
>                 Key: HDFS-15821
>                 URL: https://issues.apache.org/jira/browse/HDFS-15821
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: metrics
>    Affects Versions: 3.3.1, 3.4.0, 3.2.3
>            Reporter: Zehao Chen
>            Assignee: Zehao Chen
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.3.1, 3.4.0, 3.2.3
>
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> We currently have metrics for live datanodes but some of the datanodes may be in decommissioning state or maintenance state. Adding this metric allows us to know how many nodes are currently in service, where NumInServiceDatanodes = NumLiveDataNodes - NumDecomLiveDataNodes - NumInMaintenanceLiveDataNodes.



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