OpenTelemetry Metrics - "Responses Per Interval" is always zero and plotting on the metric view is inconsistent

Products

• DX SaaS

Issue/Introduction

We have an Enterprise Scala application that is sending metrics to APM SaaS via an OpenTelemetry Collector.   In the July release, Scala / OpenTelemetry integration was added to the SaaS Tenant.

We are observing odd behavior with the metrics that are being rendered within the Metric View for the monitored application.

For both Frontend and Backend metrics, the "Responses per interval" metric is always zero.....despite the fact that we see response time metrics and traces.   

 

Resolution

The problem appears to be specific to OTelCol v0.126.0, particularly with the spanmetrics connector when aggregation_temporality is set to AGGREGATION_TEMPORALITY_DELTA. The same version works correctly with CUMULATIVE.

 

More details can be found here: OTel Collector

This issue has been fixed in v0.127.0 and later versions.
 

We recommend upgrading to OpenTelemetry Collector v0.127.0 or newer and validating the behavior