启用php-fpm状态详解
php-fpm和nginx一样内建了一个状态页，对于想了解php-fpm的状态以及监控php-fpm非常有帮助。为了后续的zabbix监控，我们需要先了解php-fpm状态页是怎么回事。
1. 启用php-fpm状态功能
# cat /usr/local/php-5.5.10/etc/php-fpm.conf | grep status_path
pm.status_path = /status
默认情况下为/status，当然也可以改成其他的，例如/ttlsa_status等等。
2. nginx配置
在默认主机里面加上location或者你希望能访问到的主机里面。
server {
listen *:80 default_server;
server_name _;
location ~ ^/(status|ping)$
{
include fastcgi_params;
fastcgi_pass 127.0.0.1:9000;
fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;
}
}
3. 重启nginx/php-fpm
请依照你的环境重启你的nginx和php-fpm
# service nginx restart
# service php-fpm restart
4. 打开status页面
# curl http://www.ttlsa.com/status
pool: www
process manager: dynamic
start time: 14/May/2014:22:40:15 +0800
start since: 58508
accepted conn: 33
listen queue: 0
max listen queue: 8
listen queue len: 0
idle processes: 2
active processes: 1
total processes: 3
max active processes: 5
max children reached: 0
slow requests: 2091
5. php-fpm status详解
pool �C fpm池子名称，大多数为www
process manager �C 进程管理方式,值：static, dynamic or ondemand. dynamic
start time �C 启动日期,如果reload了php-fpm，时间会更新
start since �C 运行时长
accepted conn �C 当前池子接受的请求数
listen queue �C 请求等待队列，如果这个值不为0，那么要增加FPM的进程数量
max listen queue �C 请求等待队列最高的数量
listen queue len �C socket等待队列长度
idle processes �C 空闲进程数量
active processes �C 活跃进程数量
total processes �C 总进程数量
max active processes �C 最大的活跃进程数量（FPM启动开始算）
max children reached �C 大道进程最大数量限制的次数，如果这个数量不为0，那说明你的最大进程数量太小了，请改大一点。
slow requests �C 启用了php-fpm slow-log，缓慢请求的数量
6. php-fpm其他参数
php-fpm状态页比较个性化的一个地方是它可以带参数，可以带参数json、xml、html并且前面三个参数可以分别和full做一个组合。
6.1 json
# curl http://127.0.0.1/status?json
{"pool":"www","process manager":"dynamic","start time":1400078415,"start since":59624,"accepted conn":27,"listen queue":0,"max listen queue":8,"listen queue len":0,"idle processes":2,"active processes":1,"total processes":3,"max active processes":5,"max children reached":0,"slow requests":2145}
6.2 xml
# curl http://127.0.0.1/status?xml
<?xml version="1.0" ?>
<status>
<pool>www</pool>
<process-manager>dynamic</process-manager>
<start-time>1400078415</start-time>
<start-since>59640</start-since>
<accepted-conn>36</accepted-conn>
<listen-queue>0</listen-queue>
<max-listen-queue>8</max-listen-queue>
<listen-queue-len>0</listen-queue-len>
<idle-processes>2</idle-processes>
<active-processes>1</active-processes>
<total-processes>3</total-processes>
<max-active-processes>5</max-active-processes>
<max-children-reached>0</max-children-reached>
<slow-requests>2145</slow-requests>
6.3 html
# curl http://127.0.0.1/status?html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head><title>PHP-FPM Status Page</title></head>
<body>
<table>
<tr><th>pool</th><td>www</td></tr>
<tr><th>process manager</th><td>dynamic</td></tr>
<tr><th>start time</th><td>14/May/2014:22:40:15 +0800</td></tr>
<tr><th>start since</th><td>59662</td></tr>
<tr><th>accepted conn</th><td>8</td></tr>
<tr><th>listen queue</th><td>0</td></tr>
<tr><th>max listen queue</th><td>8</td></tr>
<tr><th>listen queue len</th><td>0</td></tr>
<tr><th>idle processes</th><td>2</td></tr>
<tr><th>active processes</th><td>1</td></tr>
<tr><th>total processes</th><td>3</td></tr>
<tr><th>max active processes</th><td>5</td></tr>
<tr><th>max children reached</th><td>0</td></tr>
<tr><th>slow requests</th><td>2147</td></tr>
</table>
</body></html>
6.4 full
# curl http://127.0.0.1/status?full
pool: www
process manager: dynamic
start time: 14/May/2014:22:40:15 +0800
start since: 59695
accepted conn: 1
listen queue: 0
max listen queue: 8
listen queue len: 0
idle processes: 2
active processes: 1
total processes: 3
max active processes: 5
max children reached: 0
slow requests: 2148
************************
pid: 29050
state: Idle
start time: 15/May/2014:15:09:32 +0800
start since: 338
requests: 62
request duration: 1025585
request method: GET
request URI: /index.php
content length: 0
user: -
script: /data/site/www.ttlsa.com/index.php
last request cpu: 45.83
last request memory: 24903680
.....省略几个PID....
6.5 full详解
pid �C 进程PID，可以单独kill这个进程. You can use this PID to kill a long running process.
state �C 当前进程的状态 (Idle, Running, …)
start time �C 进程启动的日期
start since �C 当前进程运行时长
requests �C 当前进程处理了多少个请求
request duration �C 请求时长（微妙）
request method �C 请求方法 (GET, POST, …)
request URI �C 请求URI
content length �C 请求内容长度 (仅用于 POST)
user �C 用户 (PHP_AUTH_USER) (or ‘-’ 如果没设置)
script �C PHP脚本 (or ‘-’ if not set)
last request cpu �C 最后一个请求CPU使用率。
last request memorythe �C 上一个请求使用的内存
7. 完成
php-fpm状态页非常使用，使用zabbix或者nagios监控可以考虑使用xml或者默认方式。用web的话，推荐使用html，表格会比较清晰。