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https://issues.apache.org/jira/browse/HDFS-14593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16878287#comment-16878287
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Takanobu Asanuma commented on HDFS-14593:
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Thank you very much for sharing your opinion, [~ayushtkn] and [~elgoiri]!
{quote}Doesn't the dead DN also stays in the NN UI for indefinite period? if we
don't restart NN I guess so.
{quote}
Yes, it does. And it is worse for the router case because expired routers keep
existing even if we restart routers.
> RBF: RouterAdmin should be able to remove expired routers from Routers
> Information
> ----------------------------------------------------------------------------------
>
> Key: HDFS-14593
> URL: https://issues.apache.org/jira/browse/HDFS-14593
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: rbf
> Reporter: Takanobu Asanuma
> Assignee: Takanobu Asanuma
> Priority: Major
> Attachments: HDFS-14593.001.patch, HDFS-14593.002.patch,
> HDFS-14593.003.patch
>
>
> Currently, any router seems to exist in the Router Information eternally.
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