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https://issues.apache.org/jira/browse/ARTEMIS-473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15417115#comment-15417115
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Miroslav Novak commented on ARTEMIS-473:
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This feature request should handle options a) and b). c) requires to resolve
hard issues which is out of scope.
> Resolve split brain data after split brains scenarios.
> ------------------------------------------------------
>
> Key: ARTEMIS-473
> URL: https://issues.apache.org/jira/browse/ARTEMIS-473
> Project: ActiveMQ Artemis
> Issue Type: New Feature
> Components: Broker
> Affects Versions: 1.2.0
> Reporter: Miroslav Novak
> Priority: Critical
>
> If master-slave pair is configured using replicated journal and there are no
> other servers in cluster then if network between master and slave is broken
> then slave will activate. Depending on whether clients were disconnected from
> master or not there might be or might not be failover to slave. Problem
> happens in the moment when network between master and slave is restored.
> Master and slave are active at the same time which is the split brain
> syndrom. Currently there is no recovery mechanism to solve this situation.
> Suggested improvement: If clients failovered to slave then master will
> restart itself so failback occurs (if configured). If clients did not
> failover and stayed connected to master then backup will restart itself.
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