rdsync

Rdsync is a redis high-availability tool. It uses a patched redis version to make a cluster or sentinel-like setup less prone to data loss.

Limitations and requirements

Patched redis (patches for redis 7.2 are included in this repo)
ZooKeeper as DCS
Single redis instance per host
In clustered setup each shard must have it's own DCS prefix
Client application must use WAITQUORUM command to make data loss less usual (check jepsen test for example).

Try it out

You will need a linux vm with gnu make, docker, docker compose and go >1.22 installed.
Use make start_sentinel_env to start an environment with senticache
Or make start_cluster_env to start an environment with single shard of clustered setup
Run make clean to drop containers and network