如何解决InfluxDB Flux 加入系列
我在 influxdb 中有以下数据
server,operation=ADD queryMs=7.9810 1620608972904452000
server,operation=GET queryMs=12.2430 1620608972909339200
server,operation=UPDATE queryMs=11.5780 1620608972909655400
server,operation=ADD queryMs=11.2460 1620608972910445700
server,operation=GET queryMs=15.0620 1620608972911305000
etc...
我想实现一系列所有 operation
。
我尝试|> group(columns: ["_field"])
,这正是我需要的,但查询速度非常慢!
from(bucket: "initial")
|> range(start: v.timeRangeStart,stop: v.timeRangeStop)
|> filter(fn: (r) => r["_measurement"] == "server")
|> filter(fn: (r) => r["_field"] == "queryMs")
|> group(columns: ["_field"])
|> aggregateWindow(every: v.windowPeriod,fn: mean,createEmpty: false)
|> yield(name: "mean")
解决方法
这工作得更快
union(tables: [
from(bucket: "initial")
|> range(start: v.timeRangeStart,stop: v.timeRangeStop)
|> filter(fn: (r) => r["_measurement"] == "server")
|> filter(fn: (r) => r["_field"] == "queryMs")
|> filter(fn: (r) => r["operation"] == "GET")
|> aggregateWindow(every: v.windowPeriod,fn: mean,createEmpty: false),from(bucket: "initial")
|> range(start: v.timeRangeStart,stop: v.timeRangeStop)
|> filter(fn: (r) => r["_measurement"] == "server")
|> filter(fn: (r) => r["_field"] == "queryMs")
|> filter(fn: (r) => r["operation"] == "ADD")
|> aggregateWindow(every: v.windowPeriod,stop: v.timeRangeStop)
|> filter(fn: (r) => r["_measurement"] == "server")
|> filter(fn: (r) => r["_field"] == "queryMs")
|> filter(fn: (r) => r["operation"] == "UPDATE")
|> aggregateWindow(every: v.windowPeriod,])
|> drop(columns:["operation"])
|> sort(columns: ["_time"],desc: false)
|> aggregateWindow(every: v.windowPeriod,createEmpty: false)
|> yield(name: "mean")
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