[jira] [Updated] (HDFS-16188) RBF: Router to support resolving monitored namenodes with DNS

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

     [ https://issues.apache.org/jira/browse/HDFS-16188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan updated HDFS-16188:
------------------------------
    Hadoop Flags: Reviewed

> RBF: Router to support resolving monitored namenodes with DNS
> -------------------------------------------------------------
>
>                 Key: HDFS-16188
>                 URL: https://issues.apache.org/jira/browse/HDFS-16188
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: rbf
>    Affects Versions: 3.4.0
>            Reporter: Leon Gao
>            Assignee: Leon Gao
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>          Time Spent: 5h 20m
>  Remaining Estimate: 0h
>
> We can use a DNS round-robin record to configure list of monitored namenodes, so we don't have to reconfigure everything namenode hostname is changed. For example, in containerized environment the hostname of namenode/observers can change pretty often.



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