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https://issues.apache.org/jira/browse/YARN-9782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16941134#comment-16941134
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Íñigo Goiri commented on YARN-9782:
-----------------------------------
We should probably add a reference to
https://docs.oracle.com/javase/8/docs/technotes/guides/net/properties.html
> Avoid DNS resolution while running SLS.
> ---------------------------------------
>
> Key: YARN-9782
> URL: https://issues.apache.org/jira/browse/YARN-9782
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Abhishek Modi
> Assignee: Abhishek Modi
> Priority: Major
> Attachments: YARN-9782.001.patch, YARN-9782.002.patch,
> YARN-9782.003.patch, YARN-9782.004.patch
>
>
> In SLS, we add nodes with random names and rack. DNS resolution of these
> nodes takes around 2 seconds because it will timeout after that. This makes
> the result of SLS unreliable and adds spikes.
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