wu-sheng commented on issue #10341:
URL: https://github.com/apache/skywalking/issues/10341#issuecomment-1435930019
> > Do you mean delta is increasement from last report period? Could you
explain a little more?
>
>
>
> Yes, delta means increasement from last report period.
>
> About skywalking how to process counter(sum) data:
>
> ```java
>
> if (metric.hasSum()) {
>
> final Sum sum = metric.getSum();
>
> if (sum
>
> .getAggregationTemporality() !=
AGGREGATION_TEMPORALITY_CUMULATIVE) {
>
> return Stream.empty();
>
> }
>
> ```
>
> Counter Data from airflow, the AggregationTemporality is Delta:
>
> ```
>
> Descriptor:
>
> -> Name: airflow_job_start
>
> -> Description:
>
> -> Unit:
>
> -> DataType: Sum
>
> -> IsMonotonic: false
>
> -> AggregationTemporality: Delta
>
> ```
>
>
What is the issue? If the source(from otel) is delta, then use SUM to build
data per min/hour/day is correct. The recent AWS s3 monitoring is using this
way.
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