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https://issues.apache.org/jira/browse/HBASE-23852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell resolved HBASE-23852.
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Resolution: Not A Problem
> [Documentation] Doc the dead servers multicast feature
> ------------------------------------------------------
>
> Key: HBASE-23852
> URL: https://issues.apache.org/jira/browse/HBASE-23852
> Project: HBase
> Issue Type: Bug
> Components: documentation
> Reporter: Michael Stack
> Priority: Major
>
> Setting a config on master enables the multicast feature where master will
> udp broadcast to all listeners -- clients -- when it learns of dead servers.
> Clients that get notification react by redoing their region locations cache
> which helps them be more response when servers die. This feature has been
> around for years but probably goes unknown since no mention in documentation.
> This issue is about adding a basic paragraph on what it does and how to use
> it. The original issue has a nice release note that could serve as the basis
> for this paragraph. See HBASE-7590
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