[BUG] Incorrect Behavior of asPercent and smartSummarize Functions in Different Time Intervals

[张三石]

Description:

I am using Grafana along with Graphite for data visualization and monitoring. I have encountered a peculiar behavior involving the asPercent and smartSummarize functions when used with different time intervals.

Scenario:

I have configured the following target configurations:

target A: This target has only one series of data.
target B: This target can have multiple series of data.
I'm utilizing the following query to calculate the percentage of target B compared to target A:

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smartSummarize(asPercent(sumSeries(#B), #A))
This query provides accurate results when aggregating by either a 1-minute or 1-day time interval.

However, when I use the following query to achieve the same result:

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smartSummarize(sumSeries(asPercent(#B, #A)))
The query works as expected when aggregated by a 1-minute interval, but the results become incorrect when aggregated by a 1-day interval.

Expected Behavior:

I would expect both query variations to produce consistent and accurate results, regardless of the aggregation interval used.

Actual Behavior:

When using the smartSummarize(sumSeries(asPercent(#B, #A))) query, the results are accurate for 1-minute intervals but become erroneous when aggregated over a 1-day interval.

Steps to Reproduce:

Configure target A and target B as described above.
Execute the two query variations for different aggregation intervals (1m and 1d).
Observe the discrepancies in the results between the two query variations and across different aggregation intervals.
Additional Information:

I have verified the correctness of data inputs and query parameters.
This phenomenon persists across different versions of Graphite and Grafana.
I have also ensured there are no issues related to cache or system resources.
Screenshots:

[Attach any relevant screenshots showing the difference in results between the two query variations and aggregation intervals.]

Environment:

Graphite Version: [Specify the version]
Grafana Version: [Specify the version]
Operating System: [Specify the OS]
Conclusion:

The observed behavior raises questions regarding the interaction between asPercent and smartSummarize functions when used with different time intervals. I believe this inconsistency might be a bug that needs attention and resolution from the Graphite development team.

I appreciate your time and attention to this matter. Please let me know if any additional information is required to investigate and resolve this issue.

Thank you!

[stale]

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