uWSGI Stats服务器

除了 SNMP ，uWSGI还支持一个Stats服务器机制，它将uWSGI状态作为一个JSON对象导出到一个socket。

只需使用 stats 选项，后面跟着一个有效的socket地址。如果你想通过HTTP提供stats，那么还需要添加 stats-http 选项。

--stats 127.0.0.1:1717
--stats /tmp/statsock
--stats :5050
--stats @foobar
# Any of the above socket types can also return stats using HTTP
--stats 127.0.0.1:1717 --stats-http

如果客户端连接到一个指定的socket，那么在连接结束之前，它将获得一个包含uWSGI内部统计数据的JSON对象。

uwsgi --socket :3031 --stats :1717 --module welcome --master --processes 8

然后

nc 127.0.0.1 1717
# or for convenience...
uwsgi --connect-and-read 127.0.0.1:1717

将返回像这样的东东：

{
  "workers": [{
    "id": 1,
    "pid": 31759,
    "requests": 0,
    "exceptions": 0,
    "status": "idle",
    "rss": 0,
    "vsz": 0,
    "running_time": 0,
    "last_spawn": 1317235041,
    "respawn_count": 1,
    "tx": 0,
    "avg_rt": 0,
    "apps": [{
      "id": 0,
      "modifier1": 0,
      "mountpoint": "",
      "requests": 0,
      "exceptions": 0,
      "chdir": ""
    }]
  }, {
    "id": 2,
    "pid": 31760,
    "requests": 0,
    "exceptions": 0,
    "status": "idle",
    "rss": 0,
    "vsz": 0,
    "running_time": 0,
    "last_spawn": 1317235041,
    "respawn_count": 1,
    "tx": 0,
    "avg_rt": 0,
    "apps": [{
      "id": 0,
      "modifier1": 0,
      "mountpoint": "",
      "requests": 0,
      "exceptions": 0,
      "chdir": ""
    }]
  }, {
    "id": 3,
    "pid": 31761,
    "requests": 0,
    "exceptions": 0,
    "status": "idle",
    "rss": 0,
    "vsz": 0,
    "running_time": 0,
    "last_spawn": 1317235041,
    "respawn_count": 1,
    "tx": 0,
    "avg_rt": 0,
    "apps": [{
      "id": 0,
      "modifier1": 0,
      "mountpoint": "",
      "requests": 0,
      "exceptions": 0,
      "chdir": ""
    }]
  }, {
    "id": 4,
    "pid": 31762,
    "requests": 0,
    "exceptions": 0,
    "status": "idle",
    "rss": 0,
    "vsz": 0,
    "running_time": 0,
    "last_spawn": 1317235041,
    "respawn_count": 1,
    "tx": 0,
    "avg_rt": 0,
    "apps": [{
      "id": 0,
      "modifier1": 0,
      "mountpoint": "",
      "requests": 0,
      "exceptions": 0,
      "chdir": ""
    }]
  }, {
    "id": 5,
    "pid": 31763,
    "requests": 0,
    "exceptions": 0,
    "status": "idle",
    "rss": 0,
    "vsz": 0,
    "running_time": 0,
    "last_spawn": 1317235041,
    "respawn_count": 1,
    "tx": 0,
    "avg_rt": 0,
    "apps": [{
      "id": 0,
      "modifier1": 0,
      "mountpoint": "",
      "requests": 0,
      "exceptions": 0,
      "chdir": ""
    }]
  }, {
    "id": 6,
    "pid": 31764,
    "requests": 0,
    "exceptions": 0,
    "status": "idle",
    "rss": 0,
    "vsz": 0,
    "running_time": 0,
    "last_spawn": 1317235041,
    "respawn_count": 1,
    "tx": 0,
    "avg_rt": 0,
    "apps": [{
      "id": 0,
      "modifier1": 0,
      "mountpoint": "",
      "requests": 0,
      "exceptions": 0,
      "chdir": ""
    }]
  }, {
    "id": 7,
    "pid": 31765,
    "requests": 0,
    "exceptions": 0,
    "status": "idle",
    "rss": 0,
    "vsz": 0,
    "running_time": 0,
    "last_spawn": 1317235041,
    "respawn_count": 1,
    "tx": 0,
    "avg_rt": 0,
    "apps": [{
      "id": 0,
      "modifier1": 0,
      "mountpoint": "",
      "requests": 0,
      "exceptions": 0,
      "chdir": ""
    }]
  }, {
    "id": 8,
    "pid": 31766,
    "requests": 0,
    "exceptions": 0,
    "status": "idle",
    "rss": 0,
    "vsz": 0,
    "running_time": 0,
    "last_spawn": 1317235041,
    "respawn_count": 1,
    "tx": 0,
    "avg_rt": 0,
    "apps": [{
      "id": 0,
      "modifier1": 0,
      "mountpoint": "",
      "requests": 0,
      "exceptions": 0,
      "chdir": ""
    }]
  }]
}

uwsgitop

uwsgitop 是一个类似于top的命令，它使用stats服务器。可以在PyPI找到，因此使用 easy_install 或者 pip 来安装它 (自然而然地，包名是 uwsgitop)。

可以在Github找到其源码。https://github.com/unbit/uwsgitop