[CASSANDRA-16935] Use paxos_variant to specify Paxos behaviour

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.1-alpha1, 4.1
• Component/s: Feature/Lightweight Transactions
• Change Category: Semantic
• Complexity: Low Hanging Fruit
• Platform: All

Source Control Link

b6916017ca4d7bb2f46355ae28fb7cd40d6eafe8

Test and Documentation Plan

n/a

• Assignee: Unassigned
• Reporter: Benedict Elliott Smith

Authors

Benedict Elliott Smith, Blake Eggleston, Sam Tunnicliffe

Reviewers

Sam Tunnicliffe

• Created: 08/Sep/21 17:55
• Updated: 27/May/22 19:25
• Resolved: 22/Nov/21 11:54

Description

This patch introduces a config property for specifying the desired Paxos implementation and semantics. Initially, this will support only v1_norrl and v2, with “norrl” meaning “no read/read linearizability” i.e. supporting those use cases that need to restore prior performance, but only for read/read interactions.

Issue Links

• is a child of: CASSANDRA-16933 CEP-10: Simulator Paxos Compatibility (Phase 3)