Add tracing suppresing for Metrics Export

experimental/CHANGELOG.md

@@ -8,6 +8,7 @@ All notable changes to experimental packages in this project will be documented
 
 ### :rocket: (Enhancement)
 
+* feat(metrics-sdk): Add tracing suppresing for Metrics Export [#3332](https://github.com/open-telemetry/opentelemetry-js/pull/3332) @hectorhdzg
 * feat(sdk-node): configure trace exporter with environment variables [#3143](https://github.com/open-telemetry/opentelemetry-js/pull/3143) @svetlanabrennan
 
 ### :bug: (Bug Fix)

experimental/packages/opentelemetry-sdk-metrics/src/export/PeriodicExportingMetricReader.ts

@@ -18,6 +18,7 @@ import * as api from '@opentelemetry/api';
 import {
   ExportResultCode,
   globalErrorHandler,
+  suppressTracing,
   unrefTimer
 } from '@opentelemetry/core';
 import { MetricReader } from './MetricReader';
@@ -86,17 +87,19 @@ export class PeriodicExportingMetricReader extends MetricReader {
     }
 
     return new Promise((resolve, reject) => {
-      this._exporter.export(resourceMetrics, result => {
-        if (result.code !== ExportResultCode.SUCCESS) {
-          reject(
-            result.error ??
-            new Error(
-              `PeriodicExportingMetricReader: metrics export failed (error ${result.error})`
-            )
-          );
-        } else {
-          resolve();
-        }
+      api.context.with(suppressTracing(api.context.active()), () => {
+        this._exporter.export(resourceMetrics, result => {
+          if (result.code !== ExportResultCode.SUCCESS) {
+            reject(
+              result.error ??
+              new Error(
+                `PeriodicExportingMetricReader: metrics export failed (error ${result.error})`
+              )
+            );
+          } else {
+            resolve();
+          }
+        });
       });
     });
   }