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https://issues.apache.org/jira/browse/HBASE-28563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang resolved HBASE-28563.
-------------------------------
Fix Version/s: 2.4.18
2.7.0
3.0.0-beta-2
2.6.1
2.5.9
Hadoop Flags: Reviewed
Resolution: Fixed
Pushed to all active branches.
Thanks [~minwoo.kang] for contributing and [~andor] for reviewing!
> Closing ZooKeeper in ZKMainServer
> ---------------------------------
>
> Key: HBASE-28563
> URL: https://issues.apache.org/jira/browse/HBASE-28563
> Project: HBase
> Issue Type: Improvement
> Components: Zookeeper
> Reporter: Minwoo Kang
> Assignee: Minwoo Kang
> Priority: Minor
> Labels: pull-request-available
> Fix For: 2.4.18, 2.7.0, 3.0.0-beta-2, 2.6.1, 2.5.9
>
>
> Users can switch the Zookeeper client/server communication framework to Netty.
> ZKMainServer process fails to terminate due to when users utilize Netty for
> ZooKeeper connections.
> Netty threads identified as non-Daemon threads.
> Enforce the calling of close() on ZooKeeper before ZKMainServer termination.
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