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authorValentin Bartenev <vbart@nginx.com>2015-08-11 16:28:55 +0300
committerValentin Bartenev <vbart@nginx.com>2015-08-11 16:28:55 +0300
commit50ff8b3c3a3eba0984ce55c63ab8ac07dcb65265 (patch)
treee0dabf7a35438fe72eb650c259f90044289e7085 /src/core/ngx_connection.h
parent9500e19919b5410b8bc17dbd3d705eef8cf5b1d8 (diff)
downloadnginx-50ff8b3c3a3eba0984ce55c63ab8ac07dcb65265.tar.gz
nginx-50ff8b3c3a3eba0984ce55c63ab8ac07dcb65265.zip
Core: idle connections now closed only once on exiting.
Iterating through all connections takes a lot of CPU time, especially with large number of worker connections configured. As a result nginx processes used to consume CPU time during graceful shutdown. To mitigate this we now only do a full scan for idle connections when shutdown signal is received. Transitions of connections to idle ones are now expected to be avoided if the ngx_exiting flag is set. The upstream keepalive module was modified to follow this.
Diffstat (limited to 'src/core/ngx_connection.h')
-rw-r--r--src/core/ngx_connection.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/core/ngx_connection.h b/src/core/ngx_connection.h
index a49aa9579..c3aca7f47 100644
--- a/src/core/ngx_connection.h
+++ b/src/core/ngx_connection.h
@@ -215,6 +215,7 @@ ngx_int_t ngx_open_listening_sockets(ngx_cycle_t *cycle);
void ngx_configure_listening_sockets(ngx_cycle_t *cycle);
void ngx_close_listening_sockets(ngx_cycle_t *cycle);
void ngx_close_connection(ngx_connection_t *c);
+void ngx_close_idle_connections(ngx_cycle_t *cycle);
ngx_int_t ngx_connection_local_sockaddr(ngx_connection_t *c, ngx_str_t *s,
ngx_uint_t port);
ngx_int_t ngx_connection_error(ngx_connection_t *c, ngx_err_t err, char *text);