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https://issues.apache.org/jira/browse/CASSANDRA-6891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13941773#comment-13941773
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Brandon Williams commented on CASSANDRA-6891:
---------------------------------------------

I don't see anything in the code that would cause this, and tshark disagrees 
with your assessment.  It seems more likely that hostname resolution problems 
are making JMX slow.

> nodetool status always does dns lookups, even if you didn't pass --resolve-ip
> -----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6891
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6891
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jeremiah Jordan
>              Labels: lhf
>
> nodetool status always does dns lookups, even if you didn't pass --resolve-ip.
> So if your dns is slow or messed up, status takes forever to run.  It should 
> only do the dns lookup if the user passed -r/--resolve-ip



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