NGINX: upstream timed out (110: Connection timed out) while reading response header from upstream

Question

I have Puma running as the upstream app server and Riak as my background db cluster. When I send a request that map-reduces a chunk of data for about 25K users and returns i

Answer 1

I think this error can happen for various reasons, but it can be specific to the module you're using. For example I saw this using the uwsgi module, so had to set "uwsgi_read_timeout".