Or you can rely on one of the hackish attempts at email attachment management or whatever conceptual error lead to this :That's a fact. If you have access to The ACM Queue, check out p16-cantrill-concurrency.pdf (Cantrill and Bonwich on concurrency).
https://agora.cs.illinois.edu/download/attachments/18744240/p16-cantrill.pdf?version=1 courtesy of a google datacentre near you
