煮酒听雨

php配置php-fpm启动、关闭和重载(平滑重载)

编辑时间：2018-05-15 编辑：忘尘阅读：793

简述：php 5.3.3 以后的php-fpm 不再支持 php-fpm 以前具有的 /usr/local/php/sbin/php-fpm (start|stop|reload)等命令，现需要使用信号控制php-fpm的状态。

##### master进程可以理解以下信号：
- INT, TERM 立刻终止
- QUIT 平滑终止
- USR1 重新打开日志文件
- USR2 平滑重载所有worker进程并重新载入配置和二进制模块

#### 查看php-fpm的地址
```
[root@izbp10njz4i1cqmwgzzfmez bin]# whereis php-fpm 
php-fpm: /usr/local/php/sbin/php-fpm
```

------------

#### 启动php-fpm
传统启动
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# /usr/local/php/sbin/php-fpm

[root@izbp10njz4i1cqmwgzzfmez sbin]# service php-fpm status
php-fpm (pid 13979) is running...
```

带配置文件启动
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# /usr/local/php/sbin/php-fpm -c /usr/local/php/etc/php.ini -y /usr/local/php/etc/php-fpm.conf

[root@izbp10njz4i1cqmwgzzfmez sbin]# service php-fpm status
php-fpm (pid 14162) is running...
```

service命令启动
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# service php-fpm start 
Starting php-fpm  done
```

------------

#### 关闭php-fpm
快速关闭(立刻终止): kill -INT COMMAND
方法一:
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# ps -ef|grep php-fpm
root     14234     1  0 14:37 ?        00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
www      14235 14234  0 14:37 ?        00:00:02 php-fpm: pool www
www      14236 14234  0 14:37 ?        00:00:05 php-fpm: pool www
www      14262 14234  0 14:40 ?        00:00:03 php-fpm: pool www
root     14342 13813  0 14:59 pts/0    00:00:00 grep --color=auto php-fpm

[root@izbp10njz4i1cqmwgzzfmez sbin]# kill -INT 14234

[root@izbp10njz4i1cqmwgzzfmez sbin]# service php-fpm status
php-fpm is stopped
```

方法二:
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# kill -INT `cat /usr/local/php/var/run/php-fpm.pid`

[root@izbp10njz4i1cqmwgzzfmez sbin]# service php-fpm status                            
php-fpm is stopped
```

优雅关闭(不接受新的连接请求，等待旧的连接请求处理完毕再关闭，正常停止或关闭推荐使用这该方式): kill -QUIT COMMAND
方法一:
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# ps -ef|grep php-fpm
root     14234     1  0 14:37 ?        00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
www      14235 14234  0 14:37 ?        00:00:02 php-fpm: pool www
www      14236 14234  0 14:37 ?        00:00:05 php-fpm: pool www
www      14262 14234  0 14:40 ?        00:00:03 php-fpm: pool www
root     14342 13813  0 14:59 pts/0    00:00:00 grep --color=auto php-fpm

[root@izbp10njz4i1cqmwgzzfmez sbin]# kill -QUIT 14234

[root@izbp10njz4i1cqmwgzzfmez sbin]# service php-fpm status
php-fpm is stopped
```

方法二:
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# kill -QUIT `cat /usr/local/php/var/run/php-fpm.pid`

[root@izbp10njz4i1cqmwgzzfmez sbin]# service php-fpm status                            
php-fpm is stopped
```

------------

#### 重载(服务不会中断): kill -USR2 COMMAND
方法一:
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# ps -ef|grep php-fpm 
root 14474 1 0 15:23 ? 00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
www 14475 14474 0 15:23 ? 00:00:00 php-fpm: pool www
www 14476 14474 0 15:23 ? 00:00:03 php-fpm: pool www
www 14487 14474 0 15:25 ? 00:00:02 php-fpm: pool www
root 14524 13813 0 15:31 pts/0 00:00:00 grep --color=auto php-fpm

[root@izbp10njz4i1cqmwgzzfmez sbin]# kill -USR2 `cat /usr/local/php/var/run/php-fpm.pid`

[root@izbp10njz4i1cqmwgzzfmez sbin]# ps -ef|grep php-fpm                                
root     14526     1  0 15:31 ?        00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
www      14527 14526  0 15:31 ?        00:00:00 php-fpm: pool www
www      14528 14526  0 15:31 ?        00:00:00 php-fpm: pool www
root     14530 13813  0 15:31 pts/0    00:00:00 grep --color=auto php-fpm

```

方法二:
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# ps -ef|grep php-fpm                                
root     14526     1  0 15:31 ?        00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
www      14527 14526  0 15:31 ?        00:00:00 php-fpm: pool www
www      14528 14526  0 15:31 ?        00:00:00 php-fpm: pool www
root     14530 13813  0 15:31 pts/0    00:00:00 grep --color=auto php-fpm

[root@izbp10njz4i1cqmwgzzfmez sbin]# kill -USR2 14526
```

------------
 
#### 检测php-fpm配置
传统检测
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# php-fpm -t
[10-May-2019 11:22:41] NOTICE: configuration file /usr/local/php/etc/php-fpm.conf test is successful
```
带配置文件检测
```linux
[root@izbp10njz4i1cqmwgzzfmez sbin]# /usr/local/php/sbin/php-fpm -c /usr/local/php/etc/php.ini -y /usr/local/php/etc/php-fpm.conf -t
[10-May-2019 11:24:46] NOTICE: configuration file /usr/local/php/etc/php-fpm.conf test is successful
```

------------
 
其中 php-fpm.pid 路径可查看php-fpm.conf配置,默认在安装目录中的var/run/php-fpm.pid，建议开启

```linux
[root@izbp10njz4i1cqmwgzzfmez etc]# pwd
/usr/local/php/etc
[root@izbp10njz4i1cqmwgzzfmez etc]# cat php-fpm.conf
[global]
pid = /usr/local/php/var/run/php-fpm.pid
error_log = /usr/local/php/var/log/php-fpm.log
log_level = notice
    ......
```

来说两句吧