I would like to amend Discourse so we "automatically" absorb certain traffic spikes. As it stands we can only configure unicorn with num_workers and use TTIN and TTOUT to tune the number on the fly.
I was wondering if you would be open to patching unicorn to allow it to perform auto-tuning based on raindrops info. How it could work 1. configure unicorn with min_workers, max_workers, wince_delay, scale_up_delay 2. If queued requests is over 0 for N samples over scale_up_delay, add a worker up until max_workers 3. If queued requests is 0 for N samples over wince_delay scale down until you reach min workers Having this system in place can heavily optimize memory in large deployments and simplifies provisioning logic quite a lot. Wondering what you think about this and if you think unicorn should provide this option?
