Pratik Mankawde 8dbaf4effb fix(telemetry): build legend groups on spans so span metrics get them ...

In the Alloy config the spanmetrics connector derives span_calls_total /
span_duration_* from the tagged TRACES and sends them straight to the batch
processor, bypassing the metric resource statements. The grouped legend labels
were built only in metric_statements, so span-derived RED metrics carried no
resource_group / iac_group and span-based dashboard panels rendered empty group
legends.

Build the same labels in trace_statements too (mirroring how the tier attrs are
already set in both), so spans carry them before spanmetrics derives from them.
The reference otel collector is unaffected: there spanmetrics is a connector
feeding the metrics pipeline, which runs transform/legendgroups on all inputs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-07-14 18:42:01 +01:00

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telemetry

fix(telemetry): build legend groups on spans so span metrics get them

2026-07-14 18:42:01 +01:00