Distributed Concurrency Control

Question

I\'ve been working on this for a few days now, and I\'ve found several solutions but none of them incredibly simple or lightweight. The problem is basically this: We have a cl

Answer 1

If you can set up your load balancing so that requests for a single customer always get mapped to the same server then you can handle this via local synchronization. For example, take your customer ID mod 10 to find which of the 10 nodes to use.

Even if you don't want to do this in the general case your nodes could proxy to each other for this specific type of request.

Assuming your users are uniform enough (i.e. if you have a ton of them) that you don't expect hot spots to pop up where one node gets overloaded, this should still scale pretty well.