Fix

Author: sakthivelmanii

spanner/metrics_monitoring_exporter.go

@@ -173,6 +173,10 @@ func (me *monitoringExporter) Aggregation(ik otelmetric.InstrumentKind) otelmetr
 // exportTimeSeries create TimeSeries from the records in cps.
 // res should be the common resource among all TimeSeries, such as instance id, application name and so on.
 func (me *monitoringExporter) exportTimeSeries(ctx context.Context, rm *otelmetricdata.ResourceMetrics) error {
+	me.mu.Lock()
+	me.lastExportedAt = time.Now()
+	me.mu.Unlock()
+
 	tss, err := me.recordsToTimeSeriesPbs(rm)
 	if len(tss) == 0 {
 		return err
@@ -202,9 +206,6 @@ func (me *monitoringExporter) exportTimeSeries(ctx context.Context, rm *otelmetr
 		errs = append(errs, err)
 	}
 
-	me.mu.Lock()
-	me.lastExportedAt = time.Now()
-	me.mu.Unlock()
 	return errors.Join(errs...)
 }