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https://issues.apache.org/jira/browse/HDFS-14593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16882223#comment-16882223
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Íñigo Goiri commented on HDFS-14593:
------------------------------------

My only concern now is the fact that we are going to the backend (say 
ZooKeeper) twice, right?
Is there a way we can just do the get once, and not having to go a second time?

> RBF: Implement deletion feature for expired records in State Store
> ------------------------------------------------------------------
>
>                 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, HDFS-14593.004.patch, HDFS-14593.005.patch, 
> HDFS-14593.006.patch
>
>
> Currently, any router seems to exist in the Router Information eternally.



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