id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1106	Stale workers not exiting after reload (with HTTP/2 long poll requests)	hwyuan@…	Valentin Bartenev <vbart@…>	"Nginx stale workers not exiting with HTTP/2 long poll requests.

Based on the commit info in http://hg.nginx.org/nginx/rev/ea284434db0f, it seems that connections with active streams should be closed if nginx is exiting (e.g. after a reload). But for long poll requests, where there could always be active streams in the connection, it seems that `ngx_http_v2_finalize_connection()` (and maybe also `ngx_http_v2_handle_connection_handler()`) may not have a chance to be reached because of the non-zero `h2c->processing` value.

The issue can be reproduced by sending long poll HTTP/2 requests to Nginx.
1. Enable HTTP/2 on an Nginx server.
2. Configure the upstream server to return the response X seconds after receiving the request.
3. Generate HTTP/2 traffic using tools such as `h2load`.
4. Reload Nginx after seeing some number of requests.
5. It can be observed that requests are still sent to the old worker (include `pid` in the access log), and the stale worker would not exit.
"	defect	closed	minor		nginx-core	1.11.x	fixed	HTTP2, longpoll, keepalive		3.16.0-60-generic 80~14.04.1-Ubuntu	built by gcc 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) built with OpenSSL 1.0.2j 26 Sep 2016 TLS SNI support enabled configure arguments: --with-http_ssl_module --with-http_v2_module --with-openssl=/PATH/TO/OPENSSL/openssl-1.0.2j