CloudWatch with Multi-Value Template Variable and Math expression

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Thank you very much! This wasn’t the complete solution to my problem, but let me realize a few things:

  • one can reference the metrics from A in B (in your example) via METRICS(), although the specific IDs are, as I mentioned, randomized

  • however, this didn’t help me because i want the rate that I needs id / PERIOD(id) (can’t use the RATE() function because it requires an ever increasing counter, not a gauge like CloudWatch stores…)

  • but I realized that one can skip using Grafana’s UI query builder completly by using the SEARCH() function in Expression from the beginning and that {{ label }} as Alias shows the values of dimension names one gives as parameter to SEARCH:

    SEARCH(' {AWS/Firehose,DeliveryStreamName} MetricName="DeliveryToS3.Records" ', 'Sum', 300) / 300

    The period can probably be improved with $__interval_ms or such, but basically that’s how it can work

  • using a single query and not one hidden and one Expressioned one also works around this regression in 6.2

This is all not really documented as far as I understood, which is a shame. Maybe I will create a merge request for improving the docs, but so long I hope that this thread might help others.

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