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https://issues.apache.org/jira/browse/HBASE-1448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715631#action_12715631
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stack commented on HBASE-1448:
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+1 I tested it and it works shutting down all waiting masters as well as main
> Add a node in ZK to tell all masters to shutdown.
> -------------------------------------------------
>
> Key: HBASE-1448
> URL: https://issues.apache.org/jira/browse/HBASE-1448
> Project: Hadoop HBase
> Issue Type: New Feature
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Priority: Critical
> Fix For: 0.20.0
>
> Attachments: hbase-1448-v1.patch
>
>
> Currently, shutting down a multi-master HBase is a bit of a mess since the
> backup masters aren't pinged by the stop-hbase script. To shut them down, you
> have to do a hbase-daemons.sh stop master. Also, with master failover in
> place, the backup masters may try to come alive. This can be solved by adding
> a "shutdown node" in ZK on which all masters should be listening.
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