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https://issues.apache.org/jira/browse/HBASE-1614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12728152#action_12728152
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stack commented on HBASE-1614:
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Understood. But unless I'm missing something, the zk node is doing close to
nothing but idle. If its zk writing logs that is causing it to go missing, it
would be good to know that is the case.
I'd be interested in learning tools to interogate zk instance -- see if its
releasing connections and how many its hosting at any one time and if its stuck
log writing to a disk that is being hogged by other processes.
> 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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