Back online

[Jason Dillon]

Just a quick note... I'm back online in Bangkok and you'll be hearing  
a lot more from me very soon :-)  Sorry about the blackout last few  
weeks, was quite hectic trying to sort everything out.


--jason

[jira] Created: (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 brin

[james strachan (JIRA)]

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/activemq/browse/AMQ-869
 Project: ActiveMQ
  Issue Type: New Feature
  Components: Broker
Reporter: james strachan


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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