[jira] [Commented] (AMQ-4165) Remove pure master/slave functionality

["Gary Tully (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMQ-4165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629972#comment-13629972 ] 

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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