Handling large bursts of POST requests to your ActivityPub inbox, using a buffer in Nginx ( join.piefed.social )
Fediverse traffic is pretty bursty and sometimes there will be a large backlog of Activities to send to your server, each of which involves a POST. This can hammer your instance and overwhelm the backend’s ability to keep up. Nginx provides a rate-limiting function which can accept POSTs at full speed and proxy them slowly...
