Redis Queue Architecture

Question

How can we assign Redis queue to take jobs parallelly? Can we place different queues inside a single Redis queue?

I am making an chat application and I want to completely reduce the delay time. If suppose more people are sending messages at a same timestamp, then there will be more messages at the redis queue. Is there a way to handle that? I am using redis for in-memory data sending.

Answer 1

Redis is single Threaded. Therefore no items can be handled in parallel. Thats not as bad as it sounds at first as redis can handle these small operations very fast ( see http://redis.io/topics/benchmarks for futher detail on how fast it is)

an ordered list can only handle items with an unique score. So using a ordered list might not be a good idea. But you can use a normal list like this:

1. store new message LPUSH chatquene message1
2. store message information

HMSET message1

time 1234 user Adam message hi receiver Eve 3. retrieve most recent message key RPOP chatquene