[ARTEMIS-2868] Protect a replicated broker pair from breaking the topology in case of a split brain

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.14.0
• Fix Version/s: 2.15.0
• Assignee: Unassigned
• Reporter: Clebert Suconic
• Created: 04/Aug/20 19:39
• Updated: 14/Feb/23 09:59
• Resolved: 25/Aug/20 17:20

Description

The issue is that after a split brain, during a reconnect the live broker will send a topology update to the live replacing the topology.

 

As a result, new replicas will not be able to reconnect after the split brain, since the topology will return a wrong address, probably towards itself from backup.

Issue Links

• causes: ARTEMIS-3402 Split Brain detection should reject bad member updates
• links to: GitHub Pull Request #3232
• links to: GitHub Pull Request #3239