Mercurial > hg > ngx_http_upstream_keepalive
comparison ngx_http_upstream_keepalive_module.c @ 24:2ee28064a04a 0.4
Keepalive: correctly close connections on gracefull shutdown.
On gracefull shutdown nginx calls read handler on all idle connections with
c->close set. Make sure we don't confuse such read handler calls with stale
events and actually close connections. This fixes "open socket ... left
in connection ..." alerts.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Wed, 15 Dec 2010 21:12:36 +0300 |
| parents | 9a4ee6fe1c6d |
| children | cb15f6f4d820 |
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| 23:cad8bc39d98d | 24:2ee28064a04a |
|---|---|
| 393 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, | 393 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, |
| 394 "keepalive close handler"); | 394 "keepalive close handler"); |
| 395 | 395 |
| 396 c = ev->data; | 396 c = ev->data; |
| 397 | 397 |
| 398 if (c->close) { | |
| 399 goto close; | |
| 400 } | |
| 401 | |
| 398 n = recv(c->fd, buf, 1, MSG_PEEK); | 402 n = recv(c->fd, buf, 1, MSG_PEEK); |
| 399 | 403 |
| 400 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) { | 404 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) { |
| 401 /* stale event */ | 405 /* stale event */ |
| 402 | 406 |