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https://issues.apache.org/jira/browse/ZOOKEEPER-2016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14105650#comment-14105650
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Alexander Shraer commented on ZOOKEEPER-2016:
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Its already implemeted and works quite nicely. See Sections 4 and 5.1 in the
paper https://www.usenix.org/system/files/conference/atc12/atc12-final74.pdf
and section 4 in the reconfig user manual.
> Automate client-side rebalancing
> --------------------------------
>
> Key: ZOOKEEPER-2016
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2016
> Project: ZooKeeper
> Issue Type: Improvement
> Reporter: Hongchao Deng
>
> ZOOKEEPER-1355 introduced client-side rebalancing, which is implemented in
> the client library. However, it requires the client to detect a configuration
> change and call updateServerList with the new connection string (see reconfig
> manual). It may be better if the client just indicates that he is interested
> in this feature when creating a ZK handle and we'll detect configuration
> changes and invoke updateServerList for him underneath the hood.
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