![Phusion 乘客进程死亡,新进程神秘启动](https://linux22.com/image/802523/Phusion%20%E4%B9%98%E5%AE%A2%E8%BF%9B%E7%A8%8B%E6%AD%BB%E4%BA%A1%EF%BC%8C%E6%96%B0%E8%BF%9B%E7%A8%8B%E7%A5%9E%E7%A7%98%E5%90%AF%E5%8A%A8.png)
正如您所看到的,尽管我们自己并没有明确重启乘客,但乘客进程正在死亡,新的进程正在启动。我们无法确定是什么原因造成的。我们应该查看哪些常见的地方来找出触发这些重启的原因?
这些passenger-status
命令发出的时间间隔约为 30 分钟。passenger_pool_idle_time
在我们的配置文件中设置为 0,您可以在此处看到:https://gist.github.com/panabee/8ddf95a72d6a07e29c7f
我们使用的是 Passenger 4.0.5、Rails 3.2.12 和 nginx 1.4.1。
[root@mongo ~]# passenger-status
----------- General information -----------
Max pool size : 20
Processes : 3
Requests in top-level queue : 0
----------- Application groups -----------
/home/p/p#default:
App root: /home/p/p
Requests in queue: 0
* PID: 17171 Sessions: 0 Processed: 536 Uptime: 27m 56s
CPU: 0% Memory : 62M Last used: 20s ago
* PID: 18087 Sessions: 0 Processed: 363 Uptime: 17m 31s
CPU: 0% Memory : 36M Last used: 39s ago
* PID: 19382 Sessions: 0 Processed: 51 Uptime: 2m 55s
CPU: 0% Memory : 34M Last used: 5s ago
[root@mongo ~]# passenger-status
----------- General information -----------
Max pool size : 20
Processes : 2
Requests in top-level queue : 0
----------- Application groups -----------
/home/p/p#default:
App root: /home/p/p
Requests in queue: 0
* PID: 25266 Sessions: 0 Processed: 73 Uptime: 2m 56s
CPU: 0% Memory : 32M Last used: 34s ago
* PID: 25462 Sessions: 1 Processed: 18 Uptime: 51s
CPU: 0% Memory : 28M Last used: 0s ago
[root@mongo ~]#
config.ru:
[root@newvps Tekiki]# cat config.ru
# This file is used by Rack-based servers to start the application.
require ::File.expand_path('../config/environment', __FILE__)
run Tekiki::Application
答案1
这是 4.0.5 中的一个错误,将在 4.0.6 中修复。同时,将 pool_idle_time 设置为较大的值。