Monday, August 11, 2014

Distributed systems theory for the distributed systems engineer

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Gwen Shapira, SA superstar and now full-time engineer at Cloudera, asked a question on Twitter that got me thinking.

My response of old might have been “well, here’s the FLP paper, and here’s the Paxos paper, and here’s the Byzantine generals paper…”, and I’d have prescribed a laundry list of primary source material which would have taken at least six months to get through if you rushed. But I’ve come to thinking that recommending a ton of theoretical papers is often precisely the wrong way to go about learning distributed systems theory (unless you are in a PhD program). Papers are usually deep, usually complex, and require both serious study, and usually significant experience to glean their important contributions and to place them in context. What good is requiring that level of expertise of engineers?

And yet, unfortunately, there’s a paucity of good ‘bridge’ material that summarises, distills and contextualises the important results and ideas in distributed systems theory; particularly material that does so without condescending. Considering that gap lead me to another interesting question:

What distributed systems theory should a distributed systems engineer know?

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