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https://issues.apache.org/jira/browse/HBASE-2715?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell closed HBASE-2715.
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> Concise error message when attempting to connect to ZK on the wrong port
> ------------------------------------------------------------------------
>
> Key: HBASE-2715
> URL: https://issues.apache.org/jira/browse/HBASE-2715
> Project: HBase
> Issue Type: Improvement
> Components: Zookeeper
> Reporter: Jeff Hammerbacher
> Priority: Major
>
> If we try to connect to ZK running on the wrong port, we generate a lot of
> spew: http://gist.github.com/434943. It would be good to catch this case and
> suggest to the user why things may have gone wrong (e.g. you've tried to
> connect to the wrong port for ZK) and how to check if ZK is actually running
> on that port (e.g. {{echo 'ruok' | nc localhost 2181}})
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