IronMQ Unicast Push Queue - do they process serially? -

IronMQ Unicast Push Queue - do they process serially? -

does ironmq force queue set unicast wait response before pushing next message? illustration - if have unicast queue, , messages a, b, , c come in...will subscriber consume - send 200 response, sent b - send 200 response, , sent c , send 200 response....

or subscriber a, b, , c fast ironmq can send them (possibly before subscriber has chance send out responses...if processing of messages takes few seconds)

ironmq force queues not serial, it's in parallel not wait response before sending next message, send them out come in. there way set rate limit in near future though can throttle how fast messages pushed.

update: wanted add together order messages sent subscribers "unicast" random. if have bunch of subscribers, should distributed as across subscribers.

ironmq