[feature request] Support multiple values in rules

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itang

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Apr 9, 2018, 11:39:38 PM4/9/18
to Prometheus Users
Hi, 
    Can prometheus support multiple values in one alert rule?
Just like this:

-----
- alert: cpu_load_warning
    expr: |
      node_load5 > 2
      and instance:cpu_load5_per_core:avg > 1
      and instance:cpu_usage:quantile > 60
-----

-----
  - alert: cpu_use_warning
    expr: |
      instance:cpu_usage:quantile > 70
      and instance:cpu_load5_per_core:avg > 1
-----


Now the rules only get the value top left, I have to define multiple alerting rules?
If supports multiple values, I only need define these in one alerting rule, and can get much more info.

Thank you!

Brian Brazil

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Apr 10, 2018, 2:47:31 AM4/10/18
to itang, Prometheus Users
You need to define at least one alert per alertname you want.

--

itang

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Apr 11, 2018, 3:15:40 AM4/11/18
to Prometheus Users
hi Brian,
   I mean. In on alertname, could I get all the values beside the "and"? Not only the left one.


在 2018年4月10日星期二 UTC+8下午2:47:31，Brian Brazil写道：

Brian Brazil

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Apr 11, 2018, 3:19:31 AM4/11/18
to itang, Prometheus Users
On 11 April 2018 at 08:15, itang <shoubi...@gmail.com> wrote:
hi Brian,
   I mean. In on alertname, could I get all the values beside the "and"? Not only the left one.

An sample can only have one value, so you can only get the left side.

Brian
 


在 2018年4月10日星期二 UTC+8下午2:47:31，Brian Brazil写道：
On 10 April 2018 at 04:39, itang <shoubi...@gmail.com> wrote:
Hi, 
    Can prometheus support multiple values in one alert rule?
Just like this:

-----
- alert: cpu_load_warning
    expr: |
      node_load5 > 2
      and instance:cpu_load5_per_core:avg > 1
      and instance:cpu_usage:quantile > 60
-----

-----
  - alert: cpu_use_warning
    expr: |
      instance:cpu_usage:quantile > 70
      and instance:cpu_load5_per_core:avg > 1
-----


Now the rules only get the value top left, I have to define multiple alerting rules?
If supports multiple values, I only need define these in one alerting rule, and can get much more info.

You need to define at least one alert per alertname you want.

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itang

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Apr 11, 2018, 3:38:54 AM4/11/18
to Prometheus Users
OK, is there a plan to support get other values?  Just for display.

Thanks.


在 2018年4月11日星期三 UTC+8下午3:19:31，Brian Brazil写道：
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Brian Brazil

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Apr 11, 2018, 3:42:50 AM4/11/18
to itang, Prometheus Users
On 11 April 2018 at 08:38, itang <shoubi...@gmail.com> wrote:
OK, is there a plan to support get other values?  Just for display.

No, that wouldn't make any sense. You want two alerting rules.

Brian
 
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f...@efficks.com

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Mar 4, 2019, 10:10:36 AM3/4/19
to Prometheus Users
Brian,
Can you explain more your point of view? I think of many examples when this actually WILL MAKE sense. I think it would be usefull to support multiple sample in prometheus.

Thank you
François-Xavier Choinière



--

Ben Kochie

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Mar 4, 2019, 11:26:58 AM3/4/19
to f...@efficks.com, Prometheus Users
Prometheus PromQL can only ever produce one value per query unique label combination.

You can execute queries in annotations to get additional values.

annotations:
  description: "{{ printf \"instance:cpu_load5_per_core:avg{instance='%s'}\" .Labels.instance | query | first | value }}"

To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/d6ed1722-03b9-4d17-96c7-315b73f240e2%40googlegroups.com.
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