PHP-FPM 获取Running进程

概述

新上线一个nginx+php-fpm的项目，最近时长收到一些平均响应时间的告警，为了方便查看php-fpm进程都在处理啥请求，以及处理时长，就有了下面这个脚本

获取指标

指标	说明
pid	进程ID
requests	进程已处理的请求数
duration	请求时长（秒）
method	请求方法
length	POST内容长度
uri	请求URI(最多取60个字符串)

get_php-fpm_running.py

$ cat get_php-fpm_running.py
#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys
import requests
from tabulate import tabulate


def get_fpm_running(url, duration=10):
    """
    获取PHP-FPM正在运行并响应时间超过默认10s的进程。
    duration: 时间单位秒
    request duration: 时间单位微秒
    """
    l = []
    r = requests.get(url)
    headers = ['pid', 'requests', 'duration', 'method', 'length', 'uri']
    
    if r.ok is False:
        return False
    try:
        data = r.json().get('processes')
    except:
        return False
    print('Total process: {0}'.format(len(data)))

    for info in data:
        states = info.get('state')
        req_duration = info.get('request duration')/1000/1000.
        if states == "Running" and req_duration > duration:
            pid = info.get('pid')
            request_nums = info.get('requests')
            method = info.get('request method')
            length = info.get('content length')
            uri = info.get('request uri')
            if len(uri) > 60:
                uri = info.get('request uri')[:60]
            process_info = [pid, request_nums, req_duration, method, length, uri]
            l.append(process_info)
    return tabulate(l, headers, tablefmt='orgtbl', floatfmt='.2f')


if __name__ == "__main__":
    url = 'http://127.0.0.1/php-fpm_stats?json&full'
    try:
        duration = sys.argv[1]
    except IndexError:
        duration = 10
    data = get_fpm_running(url, int(duration))
    print(data)

实时显示可以通过watch进行封装

$ watch -n5 ./get_php-fpm_running.py 3 
Every 5.0s: ./get_php-fpm_running.py 3                                                                                                                                         Wed Jun 14 15:31:54 2017

Total process: 512
|    pid |   requests |   duration | method   |   length | uri        |
|--------+------------+------------+----------+----------+------------|
| 132168 |        489 |       6.71 | POST     |      625 | /index.php |