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Posted to hdfs-issues@hadoop.apache.org by "Shilun Fan (Jira)" <ji...@apache.org> on 2024/02/11 23:53:00 UTC

[jira] [Updated] (HDFS-16547) [SBN read] Namenode in safe mode should not be transfered to observer state

     [ https://issues.apache.org/jira/browse/HDFS-16547?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan updated HDFS-16547:
------------------------------
          Component/s: namanode
         Hadoop Flags: Reviewed
     Target Version/s: 3.4.0
    Affects Version/s: 3.4.0

> [SBN read] Namenode in safe mode should not be transfered to observer state
> ---------------------------------------------------------------------------
>
>                 Key: HDFS-16547
>                 URL: https://issues.apache.org/jira/browse/HDFS-16547
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namanode
>    Affects Versions: 3.4.0
>            Reporter: Tao Li
>            Assignee: Tao Li
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> Currently, when a Namenode is in safemode(under starting or enter safemode manually), we can transfer this Namenode to Observer by command. This Observer node may receive many requests and then throw a SafemodeException, this causes unnecessary failover on the client.
> So Namenode in safe mode should not be transfer to observer state.



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