【其他】Falcon的数据查询

查询监控项

select
    *
from
    endpoint e inner join endpoint_counter c on e.id = c.endpoint_id where 
    c.counter = "mysql_alive_local/port=3306,type=mysql" 
    and endpoint = "host_name"

模拟登录获取Cookie，Postman选form-data

login()在/static/js/uic.js

# POST FORM, curl可以通过-b 将cookie输出到文件
curl -d "name=user&password=passwd" http://falconhost:port/auth/login

从接口获取监控数据

curl -H "Cookie:session=eyJvcGVuLWZhbGNvbi1jayI6ImppYW5neHU6NGUwOGM0YjM3ZjAwMTFlYTlmM2NlY2Y0YmJmMWFhAAQifQ.XpfQVQ._-QAoxYM--Xf7BKHfi64CU2hgwE" -X GET "http://falconhost:port/chart/h?cf=AVERAGE&end=1586943404&graph_type=h&id=8095&start=1586939864&sum=off&sumonly=off" | jq
{
  "units": "",
  "series": [
    {
      "counter": "mysql_alive_local/port=3306,type=mysql",
      "endpoint": "monitored_host",
      "data": [
        [
          1586940000000,
          1
        ],...
      ],
      "name": "monitored_host",
      "cf": "AVERAGE"
    }
  ],
  "title": "mysql_alive_local/port=3306,type=mysql"
}

从chart接口获取数据需要一个id，id是在dashboard.tmp_graph表中的主键

不是所有主机（endpoint）的metric（counter）在tmp_graph都有数据

<a href="javascript:void(0);" onclick="fn_show_chart('mysql_alive_local/port=3306,type=mysql')">mysql_alive_local/port=3306,type=mysql</a>

/static/js/dashboard.js

function fn_show_chart(counter)
{
    var checked_hosts = new Array();
    $("#tbody-endpoints input:checked").each(function(i, o){
        if($(o).is(":visible")){
            var hostfullname = $(o).attr("data-fullname");
            checked_hosts.push(hostfullname);
        }
    });
    if(checked_hosts.length === 0){
        err_message_quietly("鍏堥€塭ndpoint锛氾級");
        return false;
    }

    checked_items = new Array();
    checked_items.push(counter);
    var w = window.open();
    $.ajax({
        url: "/chart",
        dataType: "json",
        method: "POST",
        data: {"endpoints": checked_hosts, "counters": checked_items, "graph_type": "h", "_r": Math.random()},
        success: function(ret) {
            if (ret.ok) {
                setTimeout(function(){w.location='/chart/big?id='+ret.id;}, 0);
            } else {
                err_message_quietly("璇锋眰鍑洪敊浜�");
            }
        },
        error: function(){
            err_message_quietly("璇锋眰鍑洪敊浜�");
        }
    });
    return false;
}