Our requirement is the alarm for up metric, using
absent(up{job="myjob",instance=~ ".* "}). but you won't get the instance
information. Do you have any other suggestions?
在 2020年7月20日星期一 UTC+8下午2:29:22，Brian Candler写道：
>
> 1. There are an infinite number of possibilities which could match
> instance=~".*"
>
> 2. The result of that query is vector of timeseries. Each timeseries must
> have concrete labels like foo="bar", whereas foo=~"bar|baz" is a PromQL
> querying construct only. That is, it's not a label, it's an expression
> that selects labels.
>
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