Redis to Valkey - Upgrade and Downgrade Compatibility
summary
Migration path covers Redis 6.0.x, 6.2.x and 7.0.x to Valkey 7.2.x and hits startup/replication failures from incompatible RDB formats (RDB v9→v11 mismatch) and an encoding change from ziplist→listpack. Teams implement patches on Redis 6, 6.2 and 7 to accept and convert listpack at load time, relax version checks, and backport set support; three example PRs target Valkey branches. The conversion fixes unblock a fleetwide migration of thousands of Redis clusters and is currently rolling out.
AI-written summary · about
chapters (7)
- 0:00Introduction
- 1:03Migration process overview
- 3:33Downgrade compatibility challenges
- 5:00RDB format incompatibility
- 7:48List pack encoding changes
- 9:16Solution and patch implementation
- 10:42Conclusion and Q&A
related talks
33mDiscover Valkey: The Path to Now
41mValkey 8 — Release of a Redis Fork Focused on Performance
44mValkey: Latency in Cloud Environments
48mValkey clusters unboxed
27mAn Introduction to Messaging in Valkey
36mWhat’s New in Valkey
10mThe unreasonable effectiveness of key value databases
06mKeynote: Cut Database Costs, Fund Innovation with Valkey