metrics exporter: don't produce metrics with no [new] data points

ays7 · May 17, 2023 · 5ed4c6c · 5ed4c6c
1 parent 1735fb5
commit 5ed4c6c
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/sdk/src/metrics/state/temporal_metric_storage.cc b/sdk/src/metrics/state/temporal_metric_storage.cc
@@ -116,6 +116,12 @@ bool TemporalMetricStorage::buildMetrics(CollectorHandle *collector,
   // Generate the MetricData from the final merged_metrics, and invoke callback over it.
 
   AttributesHashMap *result_to_export = (last_reported_metrics_[collector]).attributes_map.get();
+  if (!result_to_export->Size ())
+    {
+      // no unreported new data points, return.
+      return true;
+    }
+
   MetricData metric_data;
   metric_data.instrument_descriptor   = instrument_descriptor_;
   metric_data.aggregation_temporality = aggregation_temporarily;