问题
When using node_redis Node.js module with Redis, should I just use one connection as Redis is single thread process or shall I create a pool of connections to improve performance?
回答1:
Just use a single connection. Both Node and Redis are effectively single thread. I don't think you'll gain anything by having multiple connections. I asked a similar question before starting to develop with Redis and it seems that one client/one application is pretty effective pattern.
回答2:
There is a use case for pooling multiple connections, actually: blocking commands like BRPOP and SUBSCRIBE.
来源：https://stackoverflow.com/questions/21976270/node-js-redis-connection-pooling