[service] fix opencensus bridge in periodic readers

.chloggen/codeboten_fix-census-bridge.yaml

@@ -0,0 +1,25 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: service
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: fix opencensus bridge configuration in periodic readers
+
+# One or more tracking issues or pull requests related to the change
+issues: [9361]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

service/internal/proctelemetry/config.go

@@ -71,7 +71,9 @@ func InitMetricReader(ctx context.Context, reader config.MetricReader, asyncErro
 		return initPullExporter(reader.Pull.Exporter, asyncErrorChannel)
 	}
 	if reader.Periodic != nil {
-		opts := []sdkmetric.PeriodicReaderOption{}
+		opts := []sdkmetric.PeriodicReaderOption{
+			sdkmetric.WithProducer(opencensus.NewMetricProducer()),
+		}
 		if reader.Periodic.Interval != nil {
 			opts = append(opts, sdkmetric.WithInterval(time.Duration(*reader.Periodic.Interval)*time.Millisecond))
 		}