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https://issues.apache.org/jira/browse/HBASE-20159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16392287#comment-16392287
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Yu Li commented on HBASE-20159:
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bq. I assume this feature has been implemented
Yes, already running online
bq. Have you noticed any concurrency issue in case of fail over?
Failover on which side, client or server? What kind of concurrency issue do you
mean sir?
> Support using separate ZK quorums for client
> --------------------------------------------
>
> Key: HBASE-20159
> URL: https://issues.apache.org/jira/browse/HBASE-20159
> Project: HBase
> Issue Type: New Feature
> Reporter: Yu Li
> Assignee: Yu Li
> Priority: Major
>
> Currently we are using the same zookeeper quorums for client and server,
> which makes us under risk that if some client connection boost exhausted
> zookeeper, RegionServer might abort due to zookeeper session loss. Actually
> we have suffered from this many times in production.
> Here we propose to allow client to use different ZK quorums, through below
> settings:
> {noformat}
> hbase.client.zookeeper.quorum
> hbase.client.zookeeper.property.clientPort
> hbase.client.zookeeper.observer.mode
> {noformat}
> The first two are for specifying client zookeeper properties, and the third
> one indicating whether the client ZK nodes are in observer mode. If the
> client ZK are not observer nodes, HMaster will take responsibility to
> synchronize necessary meta information (such as meta location and master
> address, etc.) from server to client ZK
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