相关限制

Datasets

• Datasets最多只能设置一个。

• tables只能支持一个，暂时不支持通配符。

• filter的配置对应按照WHERE条件指定数据范围。

  说明

  MaxCompute分区表一定要指定filter，否则执行时会失败。

{
  "datasets": [
    // 最多1个
    {
      "type": "Table",
      "tables": [
        // 最多1个
        // 不支持通配符
        "ods_d_dq_openapi_log"
      ],
      "dataSource": {
        "name": "odps_first",
        "envType": "Dev"
      },
      // 这里暂时只支持按照where条件指定的数据范围
      "filter": "dt = '$[yyyymmdd-1]'"
    }
  ],
  "rules": [
    // ...
  ]
}

Rules

• 限制1：不使用模板创建的规则，只能支持如下几种固定的assertion参数组合。

  规则	assertion参数配置示例
  与固定值比较	{ "assertion": "row_count > 0" }
  7天平均值波动	{ "assertion": "change avg last 7 days percent for avg(size)", "warn": "when > 0.1%", "fail": "when > 0.5%" }
  30天平均值波动	{ "assertion": "change avg last 1 month percent for avg(size)", "warn": "when > 0.1%", "fail": "when > 0.5%" }
  1天周期波动	{ "assertion": "change 1 day ago percent for avg(size)", "warn": "when > 0.1%", "fail": "when > 0.5%" }
  7天周期波动	{ "assertion": "change 7 days ago percent for avg(size)", "warn": "when > 0.1%", "fail": "when > 0.5%" }
  30天周期波动	{ "assertion": "change 1 month ago percent for avg(size)", "warn": "when > 0.1%", "fail": "when > 0.5%" }
  7天方差波动	{ "assertion": "change var last 7 days percent for avg(size)", "warn": "when > 0.1%", "fail": "when > 0.5%" }
  30天方差波动	{ "assertion": "change var last 1 month percent for avg(size)", "warn": "when > 0.1%", "fail": "when > 0.5%" }
  1,7,30天波动检测	{ "assertion": "change 1 day ago and 7 days ago and 1 month ago percent for avg(size)", "warn": "when > 0.1%", "fail": "when > 0.5%" }
  智能动态阈值	{ "assertion": "anomaly detection for avg(size)" }

• 限制2：波动类规则的阈值，只能支持如下写法：

  规则阈值要求	写法
  上升时告警，fail的阈值要大于warn的阈值，且都大于0	warn: when > 0.1% fail: when > 0.5%
  下降时告警，fail的阈值要小于warn的阈值，且都小于0。	warn: when < -0.1% fail: when < -0.5%
  上升/下降均告警，只能使用not between，而且上下界需要是一对相反数，fail的阈值的上下界绝对值要大于warn的阈值的上下界绝对值，且都不等于0。	warn: when not between -0.1% and 0.1% fail: when not between -0.5% and 0.5%