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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1448) Add a node in ZK to tell all masters to shutdown.
Date Tue, 02 Jun 2009 18:31:07 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jean-Daniel Cryans updated HBASE-1448:

    Attachment: hbase-1448-v1.patch

Patch that handles the cluster state node. I tested it a few times with either hbase-daemons.sh
stop master and stop-hbase.sh and both works very well.

> 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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