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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (AMQ-869) provide a broker-to-broker synchronization protocol so that an old master can be brought back online and synchronize up with a slave (which is running as a master) or to bring an old slave back online
Date Thu, 29 Nov 2012 21:15:00 GMT

     [ https://issues.apache.org/jira/browse/AMQ-869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Timothy Bish closed AMQ-869.
----------------------------

    Resolution: Won't Fix

Pure master slave removed for  v5.8
                
> provide a broker-to-broker synchronization protocol so that an old master can be brought
back online and synchronize up with a slave (which is running as a master) or to bring an
old slave back online
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-869
>                 URL: https://issues.apache.org/jira/browse/AMQ-869
>             Project: ActiveMQ
>          Issue Type: New Feature
>          Components: Broker
>            Reporter: james strachan
>             Fix For: NEEDS_REVIEWED
>
>
> We basically need 2 brokers to compare their current state and ensure they are both in
exactly the same state.
> e.g.
> * both brokers checkpoint
> * they perform a database merge
> * they can now continue being a master-slave pair
> Maybe the easiest implementation is to find the list of all unique message producers
then perform a 'sequence-range' comparison.
> e.g.
> broker1:
> producer1: 1-100, 102-142, 145
> ...
> broker2:
> producer1: 1-12
> then we send from broker1 to broker2 producer1: 13-100, 102-142, 145

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