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https://issues.apache.org/jira/browse/HBASE-1614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12735166#action_12735166
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Jonathan Gray commented on HBASE-1614:
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I vote to close this issue as resolved.

We fixed some stuff for ZK that should prevent this from happening.  If this 
arises again on latest trunk or in the RC, we can create a new issue.

> single zk node buckling under small node?  connections never timing out?
> ------------------------------------------------------------------------
>
>                 Key: HBASE-1614
>                 URL: https://issues.apache.org/jira/browse/HBASE-1614
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>             Fix For: 0.20.0
>
>
> A few (Irfan on the list and jgray) report that a single node zk seems 
> insufficient supporting small cluster < 20 nodes.  This seems odd (though, 
> yeah, we're recommending serious deploys must have a quorum of >= 3 zk 
> nodes).  Also, reports that all connections fill up and don't time out though 
> job is done (on IRC).  Take a look.
> (Check zk stat to see if it'll dump connections)

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