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just like the other responders, i would really like to know what database this is. to answer your question, i would use a Distributed Lock Manager to ensure only one process can write to this database...ZooKeeper is one of the most popular implementations at the time a write this...Redis RedLock looks very promising.


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There is no point introducing a cluster of app servers fronted by a load balancer, if all are pointed at a common "database" which is not designed to handle concurrency. I wouldn't call it a database at all because that implies it handles concurrency as one expects from a modern DBMS. Since the requirement is you cannot change that piece of the ...



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