swoole运行状态跟prometheus监控体系对接

[kcloze]

prometheus目前是云原生时代的标配，适合基于k8s生态的应用监控体系。

目前php应用如果迁移到swoole下，脱离了php-fpm，整个基于php-fpm监控和apm工具只能丢弃， 希望swoole能提供prometheus的运行状态接口， 参考php-fpm的exporter：https://github.com/bakins/php-fpm-exporter

或者官方可以出基本status状态接口，类似php-fpm-status，社区完成prometheus的对接

[huangzhhui]

@kcloze 预计下周 https://github.com/hyperf/hyperf/issues/511

[kcloze]

hperf速度够快，可惜应用很难再换框架了，有机会新项目考虑使用。 官方应该可以考虑swoole-exporter

[Reasno]

swoole-exporter有地址吗？

[huangzhhui]

hperf速度够快，可惜应用很难再换框架了，有机会新项目考虑使用。 官方应该可以考虑swoole-exporter

Hyperf 的组件都会考虑非 Hyperf 框架下的复用使用的，放心

[kbigbus]

+1

[pupilcp]

确实，支持！

[Reasno]

官方有server->stats()函数 把这个加到路由里渲染成普罗米修斯格式就可以了

[kcloze]

多谢提供思路，stats()颗粒度有点粗，不过可以做一些事情了

[kcloze]

php-fpm的status全部内容如下：

{
    pool: "www",
    process manager: "dynamic",
    start time: 1572592407,
    start since: 104,
    accepted conn: 56,
    listen queue: 0,
    max listen queue: 0,
    listen queue len: 128,
    idle processes: 1,
    active processes: 1,
    total processes: 2,
    max active processes: 1,
    max children reached: 0,
    slow requests: 0,
    processes: [{
            pid: 7,
            state: "Idle",
            start time: 1572592407,
            start since: 104,
            requests: 28,
            request duration: 2076,
            request method: "GET",
            request uri: "/status?json&full",
            content length: 0,
            user: "-",
            script: "-",
            last request cpu: 0,
            last request memory: 2097152
        },
        {
            pid: 8,
            state: "Running",
            start time: 1572592407,
            start since: 104,
            requests: 28,
            request duration: 2651,
            request method: "GET",
            request uri: "/status?json&full",
            content length: 0,
            user: "-",
            script: "-",
            last request cpu: 0,
            last request memory: 0
        }
    ]
}

希望swoole能补充： worker进程

• cpu和内存使用率
• Idle、working等状态信息

[matyhtf]

idle 进程数量在 Server::stats 中是有的。CPU和内存使用率应该使用 其他监控手段实现。进程的 CPU 这个价值不太大

[matyhtf]

系统信息可以使用 PHP 提供的 getrusage 函数获取

<?php
$dat = getrusage();
echo $dat["ru_oublock"];       // number of block output operations
echo $dat["ru_inblock"];       // number of block input operations
echo $dat["ru_msgsnd"];        // number of IPC messages sent
echo $dat["ru_msgrcv"];        // number of IPC messages received
echo $dat["ru_maxrss"];        // maximum resident set size
echo $dat["ru_ixrss"];         // integral shared memory size
echo $dat["ru_idrss"];         // integral unshared data size
echo $dat["ru_minflt"];        // number of page reclaims (soft page faults)
echo $dat["ru_majflt"];        // number of page faults (hard page faults)
echo $dat["ru_nsignals"];      // number of signals received
echo $dat["ru_nvcsw"];         // number of voluntary context switches
echo $dat["ru_nivcsw"];        // number of involuntary context switches
echo $dat["ru_nswap"];         // number of swaps
echo $dat["ru_utime.tv_usec"]; // user time used (microseconds)
echo $dat["ru_utime.tv_sec"];  // user time used (seconds)
echo $dat["ru_stime.tv_usec"]; // system time used (microseconds)
?>

[matyhtf]

下个版本中 Swoole 会增加一个 stats_file 的配置项，可以将 Server::stats() 的内容打印到文件中