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Does Riak support distributed transactions? If not, I don't see how they handle the possibility of a read occuring during the replicated write.


No, Riak is nontransactional. But neither is mongo if it's important here. Riak is apparently getting some kind of strong consistency though. Calvin looks interesting for a nosql with distributed transactions.


This is also something we desperately needed at my last company, but we couldn't find FOSS that supported it. mysql offers XA, but I've heard mixed reviews.




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