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https://issues.apache.org/jira/browse/AMQ-4165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629972#comment-13629972
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Gary Tully commented on AMQ-4165:
---------------------------------
Here are some of the known limitations of pure master slave:
- state replication at the openwire command level is too complex
- use of a single master connection is a bottleneck
- inability to catch up on state for a new slave after failover
> Remove pure master/slave functionality
> --------------------------------------
>
> Key: AMQ-4165
> URL: https://issues.apache.org/jira/browse/AMQ-4165
> Project: ActiveMQ
> Issue Type: Improvement
> Components: Broker
> Affects Versions: 5.7.0
> Reporter: Rob Davies
> Assignee: Rob Davies
> Fix For: 5.8.0
>
>
> Pure master/slave was introduced over 7 years ago a means of getting a tick
> box for high availability. It is severely limited, in that only one slave is
> supported, a slave must be running before the master and no attempt is made
> at synchronising a new slave.
> Unfortunately, pure master/slave is sometimes used as an option by ActiveMQ
> users, unaware of the dangers of doing so, at extreme risk to themselves and
> others.
> Pure master/slave is the spawn of hell and should be removed forthwith.
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