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skyrts

v0.1.11

Published

redis统计系统

Downloads

26

Readme

skyrts

redis 实时统计系统

  • 按秒,分钟,小时,天,周,月,年统计
  • 按每(分钟、小时等)每小时,天,周,月,年聚合
  • 自由设置时间盒子
  • 基础聚合值 Min, Max, Avg, Sum, Range(Max-Min),Count ,First(首次进入值) ,Last(最后进入值)
  • 高级聚合值 M2(二阶中心矩), Var.P(M2/Count),Var.S(M2/(Count-1)), STD.P(Sqrt(Var.P)), STD.S(Sqrt(Var.S))
const rts = require('skyrts')
const Pack = require('./package.json')

rts({
  redis: redis, // 异步redis引用
  redisAsync: redis, // 同步redis引用
  gran: '1s, 5m, 1h, 1d, 1w, 1M, 1y', // 维度的梯度
  points: 1000, // 多少点循环记录,默认500个点
  prefix: Pack.name // 需要一个前缀,区分多项目
})
  • 如果需要 按季度记录,gran 中增加 3M
  • 如果要经常统计全局总值,gran 中增加 9999y 9999 年

主要方法

// 埋点
rts.record(name, num = 1, statistics = ['sum', 'avg'], aggregations, timestamp, callback)
  • 异步记录函数,一般常用此方法
  • name 准备存放的字符串,最终形式是 'rts'+options.prefix + name
  • num 默认 1 sum+=1 否则 sum+=num
  • statistics 默认统计 count 计数,sum 总和,avg 平均值
  • 启用 avg 后,同时计算,m2 二阶中心矩,first 首次进入值,last 最后进入值
  • aggregations {Array} dy (day in week each year), hm(hour of day each month) null 就不处理聚合
  • timestamp 可以补历史记录,默认是当前服务器时间长整型
  • callback 一般不用
// 去重埋点 标准误差为0.81%
rts.recordUnique(name, uniqueId, statistics, aggregations, timestamp, callback)
  • 异步唯一值记录函数,一般常用此方法,记录后不会立刻生效,会在 options.interval || 60000 60 秒刷新唯一值
  • name 准备存放的字符串,最终形式是 'rts'+options.prefix + name
  • uniqueId 唯一标识字符串,可以为数组形式,多个唯一值
  • statistics 默认为空 记录唯一值,如果是 ['sum', 'avg']形式 调用普通 record 函数
  • aggregations {Array} dy (day in week each year), hm(hour of day each month) null 就不处理聚合
  • timestamp 可以补历史记录,默认是当前服务器时间长整型
// 异步获取埋点时间序列
rts.getStat(type, name, granCode, fromDate, toDate, callback)
  • 不常用,看下面同步方法
// 同步获取埋点时间序列
await rts.getStatAsync(type, name, granCode, fromDate, toDate)
  • type sum, min, max, avg, count, uni 唯一值情况
  • name key 的名称
  • granCode 开始 rts 设置的 gran: '1s, 5m, 1h, 1d, 1w, 1M, 1y'
  • fromDate 开始时间 Date 类型
  • toDate 结束时间 Date 类型
  • 可以使用 meeko 中的 data.offset()
const offset = function (interval, number) {
  /**
   * @function [dateAdd&offset]
   * @description 日期偏移操作.
   * @memberof Date_prototype#
   * @param {string} interval - 年月日时分秒周季 yMdhnswq.
   * @param {int} number - 时间间隔 可正负.
   * @return {string} 返回 得到日期年月日等加数字后的日期.
   * @example
   * $.now().offset('y',-1)
   * // 2018-6-1 10:19:01
   */
}

实战例子

demo1