Nginx的Rails Phusion Passenger啟動錯誤

Question

當我嘗試在vps中啟動nginx時，它顯示以下錯誤。 我正在使用centos vps。

[sarath@vps111 ~]$ sudo service nginx restart
nginx: the configuration file /opt/nginx/conf/nginx.conf syntax is ok
nginx: [alert] Unable to start the Phusion Passenger watchdog because it encountered the following error during startup: Unable to start the Phusion Passenger helper agent: it seems to have crashed during startup for an unknown reason, with exit code 1 (-1: Unknown error)
nginx: configuration file /opt/nginx/conf/nginx.conf test is successful
Stopping nginx:                                            [  OK  ]
Starting nginx: nginx: [alert] Unable to start the Phusion Passenger watchdog because it encountered the following error during startup: Cannot create a Unix socket pair: Cannot allocate memory (errno=12) (-1: Unknown error)

此錯誤與nginx，操作系統或硬件有關嗎？ 有什么辦法嗎？

Answer 1

終止服務，然后重新啟動。

$ ps -A | grep -i passenger | xargs kill -9 

如果遇到錯誤，請嘗試使用sudo。

萬一此命令不起作用，請執行以下操作：

$ kill -9 $(pgrep Passenger)

通常，當另一個實例正在運行時，我會收到此錯誤。