Help decipher error message "upstream prematurely closed connection while reading response header from upstream"
dave at cheney.net
Sat May 3 08:47:16 MSD 2008
Your upstream, the server that nginx is proxying for closed the
connection before sending a response back to nginx.
I'll take a guess that this is a rails app, and the upstream server is
mongrel, turn on the mongrel debug log (kill -USR1 ?) and see if you
can replicate the problem.
On 03/05/2008, at 4:55 AM, Joe Van Dyk wrote:
> Anyone got any idea what this error means?
> 2008/05/02 11:38:31 [error] 5505#0: *357728 upstream prematurely
> closed connection while reading response header from upstream, client:
> 18.104.22.168, server: tanga.com, URL:
> "/puzzles/847-5-1-2008?comments_page=1#comment_188860", upstream:
> host: "www.tanga.com", referrer:
> I'm not sure what the error message means, or where to look to debug
More information about the nginx