prometheus 如何做减法？

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dayProfit{p="profit"} - dayProfit{p="loss"}

无效

单独使用，两个 metric 都可以正常使用

6 replies • 2018-12-12 09:18:59 +08:00

mondeo

Dec 11, 2018 via iPhone

两个查询出来的结果集要一致才能做减法吧

ruandao

Dec 11, 2018

@mondeo #1 是同时记录的, 且是同一个 metric 记录的, 只是 label 不一样

seerhut

Dec 11, 2018

向量不能这么减，非要减转成标量再减，scalar()-scalar()

atnoot

Dec 11, 2018 via iPhone

job 是否可以呢

rayingecho

Dec 11, 2018

dayProfit{p="profit"} - ignoring(p) dayProfit{p="loss"}

ruandao

Dec 12, 2018

@rayingecho #5 谢谢