[CASSANDRA-19153] Preclude irrecoverable log corruption in case split-brain situation during leader election with absent seeds

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 5.1-alpha1
• Component/s: Transactional Cluster Metadata
• Epic Link: CEP-21: Follow Up
• Change Category: Operability
• Complexity: Normal
• Platform: All

Source Control Link

https://github.com/apache/cassandra/commit/0ec5ef2c7035fc93323816140994617a9d953956

Test and Documentation Plan

ci run

• Assignee: Marcus Eriksson
• Reporter: Alex Petrov

Authors

Marcus Eriksson

Reviewers

Alex Petrov, Sam Tunnicliffe

• Created: 04/Dec/23 13:12
• Updated: 28/Mar/24 08:57
• Resolved: 25/Mar/24 08:29

Description

It should be possible to detect a scenario where two partitioned nodes independently elect themselves as the first CMS nodes in a brand new cluster. In such a case, metadata changes should not be applied so that the conflict can be resolved.

Issue Links

• links to: GitHub Pull Request #3163