We 30x'd our Node parallelism
> We were running 4,000 Node containers (or "workers") for our bank integration service. The service was originally designed such that each worker would process only a single request at a time. This design lessened the impact of integrations that accidentally blocked the event loop, and allowed us to ignore the variability in resource usage across different integrations. But since our total capacity was capped at 4,000 concurrent requests, the system did not gracefully scale.<p>I can't be the only person who reads stories like this and wonders how they arrived at that solution in the first place?<p>Failing to scale because their previous approach to scaling was a worker per request, a model which was roundly moved away from, because that's how CGI and Apache modules worked and it didn't scale well.<p>I thought one of the key selling points with Node was an fully async standard library, enabling better scaling in process.<p>But then you read stories like this, and I find it hard to relate to the original problem.