Provider Capabilities¶

Provider	Distributed cache	Invalidation bus	Notes
Redis	`RedisDistributedCache`	`RedisStreamsInvalidationBus`	Can provide both shared values and invalidation
Memcached	`MemcachedDistributedCache`	No	Stores shared values only
RabbitMQ	No	`RabbitMQInvalidationBus`	Uses a fanout exchange
Kafka	No	`KafkaInvalidationBus`	Uses a topic and a unique consumer group per node by default
PostgreSQL	No	`PostgresNotifyInvalidationBus`	Uses `LISTEN`/`NOTIFY`

Distributed cache and invalidation are independent. You can use Redis or Memcached for shared cached values without an invalidation bus, an invalidation bus without shared L2 storage, or both together.

Default names¶

Provider	Default name
Redis distributed key prefix	`async-hybrid-cache:`
Redis invalidation stream	`async-hybrid-cache:invalidations`
Memcached distributed key prefix	`async-hybrid-cache:`
RabbitMQ exchange	`async-hybrid-cache-invalidations`
Kafka topic	`async-hybrid-cache-invalidations`
PostgreSQL channel	`async_hybrid_cache_invalidations`