# Nginx reload causing dropped requests **URL:** \ **Category:** NGINX\ **Created:** [January 21, 2011, 2:46am UTC](https://www.ruby-forum.com/t/nginx-reload-causing-dropped-requests/202073 "2011-01-21T02:46:40Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\ **Post date:** [January 21, 2011, 2:46am UTC](https://www.ruby-forum.com/t/nginx-reload-causing-dropped-requests/202073/1 "2011-01-21T02:46:40Z")
Hi, I’m seeing dropped requests on nginx reload. I’m using 0.8.53 compiled from source. My configuration is nginx as a proxy in front of (currently) 2 apache servers. It looks like if a client reuses a connection it had before the reload (HTTP/1.1 style), then the server doesn’t handle the request - from tcpdump, I see the TCP connection is just reset with no response. Is this a known issue? Is there some configuration option to stop the old worker processes from dieing until the connections have all timed out? Cheers, Mike ---
**Author:** ![Mike\_Bell](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/f05b48/32.png) [@Mike\_Bell](https://www.ruby-forum.com/u/Mike_Bell)\ **Post date:** [January 21, 2011, 4:09am UTC](https://www.ruby-forum.com/t/nginx-reload-causing-dropped-requests/202073/2 "2011-01-21T04:09:21Z")
Apologies - having looked closer I see the bug is with my python test client - python’s httplib doesn’t notice nginx has closed the connection - it’s up to the application code to retry in this case. Cheers, Mike ---
**Author:** ![Mike\_Bell](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/f05b48/32.png) [@Mike\_Bell](https://www.ruby-forum.com/u/Mike_Bell)\ **Post date:** [January 21, 2011, 4:11am UTC](https://www.ruby-forum.com/t/nginx-reload-causing-dropped-requests/202073/3 "2011-01-21T04:11:15Z")
Ive seen this happen too. Ive always accepted it as something that happens and not a bug. But yeah its an annoyance when you have a dynamically configured server. ---
**Author:** ![Mike\_Bell](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/f05b48/32.png) [@Mike\_Bell](https://www.ruby-forum.com/u/Mike_Bell)\ **Post date:** [January 21, 2011, 4:12am UTC](https://www.ruby-forum.com/t/nginx-reload-causing-dropped-requests/202073/4 "2011-01-21T04:12:30Z")
Ive seen it happen with google chrome a bit after reload ( net::ERR\_EMPTY\_RESPONSE) ---
**Author:** ![Mike\_Bell](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/f05b48/32.png) [@Mike\_Bell](https://www.ruby-forum.com/u/Mike_Bell)\ **Post date:** [January 21, 2011, 9:01am UTC](https://www.ruby-forum.com/t/nginx-reload-causing-dropped-requests/202073/5 "2011-01-21T09:01:11Z")
On Fri, Jan 21, 2011 at 02:11:39PM +1100, SplitIce wrote: > Ive seen it happen with google chrome a bit after reload ( > net::ERR\_EMPTY\_RESPONSE) How do you do reload ? Using -HUP signal ? > > > I see the TCP connection is just reset with no response. > > > nginx mailing list > > > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > > > [mailman.nginx.org archive](http://nginx.org/mailman/listinfo/nginx) > * * * > > nginx mailing list > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [mailman.nginx.org archive](http://nginx.org/mailman/listinfo/nginx) – [http://sysoev.ru](http://sysoev.ru) ---
**Author:** ![Mike\_Bell](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/f05b48/32.png) [@Mike\_Bell](https://www.ruby-forum.com/u/Mike_Bell)\ **Post date:** [January 21, 2011, 9:03am UTC](https://www.ruby-forum.com/t/nginx-reload-causing-dropped-requests/202073/6 "2011-01-21T09:03:04Z")
On Thu, Jan 20, 2011 at 05:45:21PM -0800, Mike Bell wrote: > I see the TCP connection is just reset with no response. > > Is this a known issue? Is there some configuration option to stop the old > worker processes from dieing until the connections have all timed out? While reload (HUP signal) nginx closes only idle keepalive connections. – Igor S. > **[Igor Sysoev](http://sysoev.ru/en/)** ---
**Author:** ![Mike\_Bell](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/f05b48/32.png) [@Mike\_Bell](https://www.ruby-forum.com/u/Mike_Bell)\ **Post date:** [January 21, 2011, 9:27am UTC](https://www.ruby-forum.com/t/nginx-reload-causing-dropped-requests/202073/7 "2011-01-21T09:27:31Z")
Yep HUP via /etc/init.d/nginx reload . If I could reproduce it I would, Ive only seen it in chrome so it may be chrome incorrectly handling keepalive closure or something.