Después de depurar durante 6 horas, estoy renunciando a esto: |
Tenemos un nginx + php-fpm + mysql en LAN con casi 100 wordpress (creado y utilizado por diferentes diseñadores / desarrolladores, todos trabajando en la configuración de prueba de wordpres)
Estamos usando nginx sin problemas desde hace mucho tiempo.
Hoy, de repente, nginx comenzó a devolver "504 Gateway Time-out" de la nada ...
Revisé el registro de errores de nginx para un host virtual ...
2010/09/06 21:24:24 [error] 12909#0: *349 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET /favicon.ico HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
2010/09/06 21:25:11 [error] 12909#0: *349 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET /favicon.ico HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
2010/09/06 21:25:11 [error] 12909#0: *443 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET /info.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
2010/09/06 21:25:12 [error] 12909#0: *443 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET /favicon.ico HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
2010/09/06 22:08:32 [error] 12909#0: *1025 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
2010/09/06 22:09:33 [error] 12909#0: *1025 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET /favicon.ico HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
2010/09/06 22:09:40 [error] 12909#0: *1064 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET /info.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
2010/09/06 22:09:40 [error] 12909#0: *1064 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET /favicon.ico HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
2010/09/06 22:24:44 [error] 12909#0: *1313 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
2010/09/06 22:24:53 [error] 12909#0: *1313 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 192.168.0.1, server: rahul286.rtcamp.info, request: "GET /favicon.ico HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "rahul286.rtcamp.info"
Cuando ejecuté php-fpm en el puerto 9000 a través del modo TCP, ejecuté "netstat | grep 9000" y noté algo inusual ... (Pegar aquí la salida parcial para facilitar la lectura)
tcp 9 0 localhost:9000 localhost:36094 CLOSE_WAIT 14269/php5-fpm
tcp 0 0 localhost:46664 localhost:9000 FIN_WAIT2 -
tcp 1257 0 localhost:9000 localhost:36135 CLOSE_WAIT -
tcp 1257 0 localhost:9000 localhost:36125 CLOSE_WAIT -
tcp 9 0 localhost:9000 localhost:36102 CLOSE_WAIT 14268/php5-fpm
tcp 0 0 localhost:46662 localhost:9000 FIN_WAIT2 -
tcp 745 0 localhost:9000 localhost:46644 CLOSE_WAIT -
tcp 0 0 localhost:46658 localhost:9000 FIN_WAIT2 -
tcp 1265 0 localhost:9000 localhost:46607 CLOSE_WAIT -
tcp 0 0 localhost:46672 localhost:9000 ESTABLISHED 12909/nginx: worker
tcp 1257 0 localhost:9000 localhost:36119 CLOSE_WAIT -
tcp 1265 0 localhost:9000 localhost:46613 CLOSE_WAIT -
tcp 0 0 localhost:46646 localhost:9000 FIN_WAIT2 -
tcp 1257 0 localhost:9000 localhost:36137 CLOSE_WAIT -
tcp 0 0 localhost:46670 localhost:9000 ESTABLISHED 12909/nginx: worker
tcp 1265 0 localhost:9000 localhost:46619 CLOSE_WAIT -
tcp 1336 0 localhost:9000 localhost:46668 ESTABLISHED -
tcp 0 0 localhost:46648 localhost:9000 FIN_WAIT2 -
tcp 1336 0 localhost:9000 localhost:46670 ESTABLISHED -
tcp 9 0 localhost:9000 localhost:36108 CLOSE_WAIT 14274/php5-fpm
tcp 1336 0 localhost:9000 localhost:46684 ESTABLISHED -
tcp 0 0 localhost:46674 localhost:9000 ESTABLISHED 12909/nginx: worker
tcp 1336 0 localhost:9000 localhost:46666 ESTABLISHED -
tcp 1257 0 localhost:9000 localhost:46648 CLOSE_WAIT -
tcp 1336 0 localhost:9000 localhost:46678 ESTABLISHED -
tcp 0 0 localhost:46668 localhost:9000 ESTABLISHED 12909/nginx: wo
Hay muchos pares "CLOSE_WAIT" y "FIN_WAIT2" como se resalta a continuación (en la salida anterior):
tcp 1337 0 localhost:9000 localhost:46680 CLOSE_WAIT -
tcp 0 0 localhost:46680 localhost:9000 FIN_WAIT2 -
Tenga en cuenta el puerto 46680 de arriba.
Habilité el registro de errores de consultas lentas de mysql, pero no funcionó.
A partir de ahora reiniciar php5-fpm cada minuto a través de un cronjob (ver el comando a continuación) manteniendo todo funcionando "sin problemas", pero odio el patchwork y quiero resolver esto ...
1 * * * * service php5-fpm restart > /dev/null
Busqué mucho en Google, no obtuve ayuda. Como se mencionó, este es un servidor de prueba en LAN, la carga de la CPU nunca se cruza 0.10 y el uso de memoria también está por debajo del 25% (el sistema tiene 2GB de RAM y un servidor ubuntu instalado). al menos dejar caer una pista.
Gracias de antemano por la ayuda.
-Rahul
(nota: esto es volver a publicar - http://forum.nginx.org/read.php?11,127694 )
Actualización: encontré la respuesta, que se publica a continuación.