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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-1448) Add a node in ZK to tell all masters to shutdown.
Date Tue, 26 May 2009 19:44:45 GMT
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

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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