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diff --git a/web/api/queries/incremental_sum/README.md b/web/api/queries/incremental_sum/README.md new file mode 100644 index 0000000..4430117 --- /dev/null +++ b/web/api/queries/incremental_sum/README.md @@ -0,0 +1,41 @@ +<!-- +title: "Incremental Sum (`incremental_sum`)" +custom_edit_url: https://github.com/netdata/netdata/edit/master/web/api/queries/incremental_sum/README.md +--> + +# Incremental Sum (`incremental_sum`) + +This modules finds the incremental sum of a period, which `last value - first value`. + +The result may be positive (rising) or negative (falling) depending on the first and last values. + +## how to use + +Use it in alarms like this: + +``` + alarm: my_alarm + on: my_chart +lookup: incremental_sum -1m unaligned of my_dimension + warn: $this > 1000 +``` + +`incremental_sum` 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=incremental_sum` 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) +- ![](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) +- ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=incremental_sum&after=-60&label=incremental+sum&value_color=orange) + +## References + +- none + + |