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https://issues.apache.org/jira/browse/ZOOKEEPER-338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14078212#comment-14078212
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Raul Gutierrez Segales commented on ZOOKEEPER-338:
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Forgot to mention something that is obvious for long-timers but might be new to
newer folks: zookeeper_interest is called periodically to send pings, check for
events, etc.
> zk hosts should be resolved periodically for loadbalancing amongst zk servers.
> ------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-338
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-338
> Project: ZooKeeper
> Issue Type: New Feature
> Components: c client, java client
> Affects Versions: 3.0.0, 3.0.1, 3.1.0
> Reporter: Mahadev konar
>
> The list of host names passed to ZK init method is resolved only once. Had a
> corresponding DNS entry been changed, it
> would not be refreshed by the ZK library,effectively preventing from proper
> load balancing.
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