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https://issues.apache.org/jira/browse/HDFS-15096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17010376#comment-17010376
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Ayush Saxena commented on HDFS-15096:
-------------------------------------
Tested locally, Sharing the profiler times, Well that logically it would be
less, but still since I had, Sharing it :
Before :
!Server-Before.PNG!
After :
!GetServerDefault-Cached.PNG!
Will add comments as said latter today and raise a JIRA for using timeperiod
instead millis
> 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: GetServerDefault-Cached.PNG, HDFS-15096-01.patch,
> Server-Before.PNG
>
>
> 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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