Bursts of 502 Service Unavailable, pointers to debug

I can’t think of anything I’ve written that covers tracing a request through the layers. I’d suggest starting with @Sam’s topic on where the wild logs are and working from the outside in – find a failing request in the logs for the outermost proxy (either nginx in the container, or the host’s nginx/apache if it’s setup that way), then find the corresponding entry at the next hop (unicorn, or container nginx), and so on.

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