1. Tendis

From Tencent, based on RocksDB as persistent storage. Binlog to support resuming transport when running replication.

2. Kvrocks

Apache project, poor document. Have seen no advantage over Tendis so far. Also based on RocksDB.

3. KeyDB

Redis fork, multi-threading adopted.

4. Codis

A Redis proxy, clients are not required to know the cluster protocol.

5. redis-cluster-proxy

A Redis proxy, clients are not required to know the cluster protocol.

6. RedisShake

Redis data synchronization(Cross DC). Launch multiple process if sync source is a cluster setup. Used for one-shot full sync scenario, not recommanded for long-time incremental sync.