November 2013
Intermediate to advanced
148 pages
3h 12m
English
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Routing and Dealing Messages
The REQ/REP socket pair we explored makes request/reply logic easy to code by operating sequentially. A given requester or responder will only ever be aware of one message at a time. For parallel message processing, ØMQ includes the more advanced socket types ROUTER and DEALER. Let’s explore these a bit; then we’ll be ready to construct our Node.js cluster.
Routing Messages
You can think of a ROUTER socket as a parallel REP socket. Rather than replying to only one message at a time, a ROUTER socket can handle many requests simultaneously. It remembers which connection each request came from and will route reply messages accordingly.
Recall from Implementing a Messaging Protocol, that any time you do networked programming, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.