php开机启动

cd /usr/lib/systemd/system
touch php-fpm.service

输入以下内容到新建的文件

[Unit]
Description=The PHP FastCGI Process Manager
After=syslog.target network.target

[Service]
Type=simple
PIDFile=/usr/local/php/var/run/php-fpm.pid
ExecStart=/usr/local/bin/php-fpm --nodaemonize --fpm-config /usr/local/php/etc/php-fpm.conf 
ExecReload=/bin/kill -USR2 $MAINPID
ExecStop=/bin/kill -SIGINT $MAINPID

[Install]
WantedBy=multi-user.target

#启动
systemctl start php-fpm.service
#查看状态
systemctl status php-fpm.service
#开机启动
systemctl enable php-fpm.service

 systemctl daemon-reload

[Unit]部分主要是对这个服务的说明，内容包括Description和After，Description用于描述服务，After用于描述服务类别

[Service]部分是服务的关键，是服务的一些具体运行参数的设置，这里Type=forking是后台运行的形式，PIDFile为存放PID的文件路径，ExecStart为服务的具体运行命令，ExecReload为重启命令，ExecStop为停止命令，PrivateTmp=True表示给服务分配独立的临时空间，
注意：[Service]部分的启动、重启、停止命令全部要求使用绝对路径，使用相对路径则会报错！

[Install]部分是服务安装的相关设置，可设置为多用户的

php-fpm的配置文件

php-fpm.conf 的listen要跟nginx中的代理端口要一样的哦 也可以都改成sock地址
nginx

location ~ [^/]\.php(/|$)
        {
            try_files $uri =404;
            fastcgi_pass  unix:/tmp/php-cgi.sock;
            #fastcgi_pass   127.0.0.1:9000;
            fastcgi_index index.php;
            include fastcgi.conf;
        }

z@z-PC:/usr/local/php/etc$ cat /usr/local/php/etc/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

[www]
listen = /tmp/php-cgi.sock
#listen = 127.0.0.1:9000
listen.backlog = -1
listen.allowed_clients = 127.0.0.1
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = dynamic
pm.max_children = 60
pm.start_servers = 5
pm.min_spare_servers = 5
pm.max_spare_servers = 60
request_terminate_timeout = 100
request_slowlog_timeout = 0
slowlog = var/log/slow.log

php-fpm master进程控制

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进程

ps aux|grep php-fpm 

z@z-PC:/usr/local/php/etc$ ps aux|grep php-fpm 
root      8848  0.0  0.2 177556 23060 ?        Ss   10:19   0:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
www       8858  1.5  0.2 186188 22528 ?        S    10:19   0:00 php-fpm: pool www
www       8860  1.6  0.2 186188 22532 ?        S    10:19   0:00 php-fpm: pool www
www       8862  1.0  0.2 184140 20488 ?        S    10:19   0:00 php-fpm: pool www
www       8865  1.1  0.2 184140 20488 ?        S    10:19   0:00 php-fpm: pool www
www       8867  0.9  0.2 184140 20488 ?        S    10:19   0:00 php-fpm: pool www
www       8870  1.1  0.2 184140 20488 ?        S    10:19   0:00 php-fpm: pool www
z         8879  0.0  0.0  14664  1028 pts/1    S+   10:20   0:00 grep php-fpm

查看php-fpm进程

z@z-PC:/usr/local/php/etc$ systemctl status php-fpm.service 
● php-fpm.service - The PHP FastCGI Process Manager
   Loaded: loaded (/usr/lib/systemd/system/php-fpm.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2018-12-19 10:19:47 CST; 6min ago
  Process: 7971 ExecStop=/bin/kill -SIGINT $MAINPID (code=exited, status=0/SUCCESS)
 Main PID: 8848 (php-fpm)
    Tasks: 6 (limit: 4915)
   Memory: 66.5M
   CGroup: /system.slice/php-fpm.service
           ├─8848 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
           ├─9010 php-fpm: pool www
           ├─9011 php-fpm: pool www
           ├─9012 php-fpm: pool www
           ├─9013 php-fpm: pool www
           └─9014 php-fpm: pool www

重启php-fpm方式

#相当于重启master
kill -USR2  8848
#同样效果
kill -USR2`cat /usr/local/php/var/run/php-fpm.pid`
#关闭
kill -INT `cat /usr/local/php/var/run/php-fpm.pid`

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