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Posted to hdfs-dev@hadoop.apache.org by "Xiaoqiao He (Jira)" <ji...@apache.org> on 2025/04/10 12:57:00 UTC

[jira] [Resolved] (HDFS-17752) Host2DatanodeMap will not update when re-register a node with a different hostname

     [ https://issues.apache.org/jira/browse/HDFS-17752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiaoqiao He resolved HDFS-17752.
--------------------------------
    Fix Version/s: 3.5.0
     Hadoop Flags: Reviewed
       Resolution: Fixed

> Host2DatanodeMap will not update when re-register a node with a different hostname
> ----------------------------------------------------------------------------------
>
>                 Key: HDFS-17752
>                 URL: https://issues.apache.org/jira/browse/HDFS-17752
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>            Reporter: WenjingLiu
>            Assignee: WenjingLiu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.5.0
>
>
> We have HBase RegionServer running, if a DataNode is re-registered with a different hostname, RegionServer will always treat this type of DataNode as a DeadNode, because host2DatanodeMap is not updated accordingly.



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