summaryrefslogtreecommitdiffstats
path: root/web/api/queries/min/README.md
blob: cf63aaa010b252b153d7b0c6d66e0f91d2b5541b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
<!--
title: "Min"
sidebar_label: "Min"
custom_edit_url: https://github.com/netdata/netdata/edit/master/web/api/queries/min/README.md
learn_status: "Published"
learn_topic_type: "References"
learn_rel_path: "Developers/Web/Api/Queries"
-->

# Min

This module finds the min value in the time-frame given.

## how to use

Use it in alarms like this:

```
 alarm: my_alarm
    on: my_chart
lookup: min -1m unaligned of my_dimension
  warn: $this > 1000
```

`min` does not change the units. For example, if the chart units is `requests/sec`, the result
will be again expressed in the same units. 

It can also be used in APIs and badges as `&group=min` in the URL.

## Examples

Examining last 1 minute `successful` web server responses:

-   ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=min&after=-60&label=min&value_color=orange)
-   ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=average&after=-60&label=average)
-   ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=max&after=-60&label=max)

## References

-   <https://en.wikipedia.org/wiki/Sample_maximum_and_minimum>.