I've been working on a module to submit web requests to a backend server over UDP, and its been a good exercise in working with nginx internals.
Next I could use some advice on dealing with client disconnects - I see ngx_http_upstream_rd_check_broken_connection and ngx_http_upstream_wr_check_broken_connection being set as event handlers for the client connection in the upstream module, but I don't see the handlers put back or the original handlers being called. Wouldn't this interfere with keep-alive behavior on the client connection?
Are there other considerations I need to make when dealing with client disconnects? Anything I should do or avoid doing?
All help appreciated!