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https://issues.apache.org/jira/browse/HDFS-15096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17009916#comment-17009916
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Íñigo Goiri commented on HDFS-15096:
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* can we make the config use time period instead of Millis? Probably we should
do that in a separate JIRA.
* I think we could have a unit test.
* can we add a comment where we do the caching to clarify why?
> RBF : GetServerDefaults Should be Cached At Router
> --------------------------------------------------
>
> Key: HDFS-15096
> URL: https://issues.apache.org/jira/browse/HDFS-15096
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Attachments: HDFS-15096-01.patch
>
>
> Presently each getServerDefault calls are triggered to the Namespace, The
> DFSClient caches the getServerDefaults(), similarly the Router can also cache
> the getServerDefaults(), as router connects to multiple clients, this
> improves performance for subsequent calls.
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