zmq vs redis for pub-sub pattern

Question

redis supports pub-sub
zmq also supports pub-sub via a message broker

What would be the architectural pros\\cons for choosing between them?

Answer 1

ZeroMq Pros/Cons

• Pub/sub peers can connect and disconnect independently; messages are saved to buffers based on HWM settings, automatically sent upon peer availability (store-and-forward)
• If a peer fails, buffered messages will be lost
• Topic subscriptions support prefix matching with pub/sub enveloping only; NEWS subscription matches NEWS* messages

Redis Pros/Cons

• AOF snapshotting to disk persists messages in the event redis fails
• Pub/sub clients depend on redis for connectivity
• Wildcard matching for selective topic subscriptions like news.* supported