[QUERY][Azure Monitor Exporter] Bucket aggregation for histograms

[pblachut]

Library name and version

Azure.Monitor.OpenTelemetry.Exporter 1.4.0-beta.1

Query/Question

Hi, I'm using OpenTelemetry together with azure monitor exporter library. I use it to create custom histogram metrics in order to create charts on application insights dashboards.

I've noticed that azure monitor doesn't propagate information about buckets. It sends histogram values in aggregated form min, max, average which is fine unless they are aggregated based on bucket information.

I was not able to find this place in the code, can you confirm that azure monitor takes into account opentelemetry buckets into their aggregation?

If not then is there any way to change / force it to do it? Bucket information might be also useful when attached, e.g. in customDimensions log part.

The reason why I ask it is a need to have reliable time metric in percentiles in application insights. Without proper bucket aggregation it can't be achieved.

Environment

Azure.Monitor.OpenTelemetry.Exporter 1.4.0-beta.1

[github-actions]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @rajkumar-rangaraj @TimothyMothra.