Cache 
APIO core nodes can use a Redis server or its internal memory to cache some data.
For Redis, the URI is redis://<host>:<port>/<db>. The default port is 6379 and the default database is 0.
For the internal memory, the URI is memory://.
APIO core nodes can use a Redis server or its internal memory to cache some data.
For Redis, the URI is redis://<host>:<port>/<db>. The default port is 6379 and the default database is 0.
For the internal memory, the URI is memory://.