feat(node-tracer): use AsyncLocalStorageContextManager by default starting Node 14.8 #1511 (#1525)

Co-authored-by: Daniel Dyla <dyladan@users.noreply.github.com>

packages/opentelemetry-node/src/NodeTracerProvider.ts

@@ -14,13 +14,17 @@
  * limitations under the License.
  */
 
-import { AsyncHooksContextManager } from '@opentelemetry/context-async-hooks';
+import {
+  AsyncHooksContextManager,
+  AsyncLocalStorageContextManager,
+} from '@opentelemetry/context-async-hooks';
 import {
   BasicTracerProvider,
   SDKRegistrationConfig,
 } from '@opentelemetry/tracing';
 import { DEFAULT_INSTRUMENTATION_PLUGINS, NodeTracerConfig } from './config';
 import { PluginLoader, Plugins } from './instrumentation/PluginLoader';
+import * as semver from 'semver';
 
 /**
  * Register this TracerProvider for use with the OpenTelemetry API.
@@ -53,7 +57,10 @@ export class NodeTracerProvider extends BasicTracerProvider {
 
   register(config: SDKRegistrationConfig = {}) {
     if (config.contextManager === undefined) {
-      config.contextManager = new AsyncHooksContextManager();
+      const ContextManager = semver.gte(process.version, '14.8.0')
+        ? AsyncLocalStorageContextManager
+        : AsyncHooksContextManager;
+      config.contextManager = new ContextManager();
       config.contextManager.enable();
     }
 

packages/opentelemetry-node/test/registration.test.ts

@@ -21,11 +21,19 @@ import {
   trace,
   ProxyTracerProvider,
 } from '@opentelemetry/api';
-import { AsyncHooksContextManager } from '@opentelemetry/context-async-hooks';
+import {
+  AsyncHooksContextManager,
+  AsyncLocalStorageContextManager,
+} from '@opentelemetry/context-async-hooks';
 import { NoopContextManager } from '@opentelemetry/context-base';
 import { CompositePropagator } from '@opentelemetry/core';
 import * as assert from 'assert';
 import { NodeTracerProvider } from '../src';
+import * as semver from 'semver';
+
+const DefaultContextManager = semver.gte(process.version, '14.8.0')
+  ? AsyncLocalStorageContextManager
+  : AsyncHooksContextManager;
 
 describe('API registration', () => {
   beforeEach(() => {
@@ -38,9 +46,7 @@ describe('API registration', () => {
     const tracerProvider = new NodeTracerProvider();
     tracerProvider.register();
 
-    assert.ok(
+    assert.ok(context['_getContextManager']() instanceof DefaultContextManager);
-      context['_getContextManager']() instanceof AsyncHooksContextManager
-    );
     assert.ok(
       propagation['_getGlobalPropagator']() instanceof CompositePropagator
     );
@@ -96,9 +102,7 @@ describe('API registration', () => {
       propagation['_getGlobalPropagator']() instanceof NoopTextMapPropagator
     );
 
-    assert.ok(
+    assert.ok(context['_getContextManager']() instanceof DefaultContextManager);
-      context['_getContextManager']() instanceof AsyncHooksContextManager
-    );
 
     const apiTracerProvider = trace.getTracerProvider();
     assert.ok(apiTracerProvider instanceof ProxyTracerProvider);

packages/opentelemetry-sdk-node/test/sdk.test.ts

@@ -26,7 +26,10 @@ import {
   trace,
   ProxyTracerProvider,
 } from '@opentelemetry/api';
-import { AsyncHooksContextManager } from '@opentelemetry/context-async-hooks';
+import {
+  AsyncHooksContextManager,
+  AsyncLocalStorageContextManager,
+} from '@opentelemetry/context-async-hooks';
 import { NoopContextManager } from '@opentelemetry/context-base';
 import { CompositePropagator } from '@opentelemetry/core';
 import { ConsoleMetricExporter, MeterProvider } from '@opentelemetry/metrics';
@@ -81,6 +84,10 @@ const mockedIdentityResponse = {
 };
 const mockedHostResponse = 'my-hostname';
 
+const DefaultContextManager = semver.gte(process.version, '14.8.0')
+  ? AsyncLocalStorageContextManager
+  : AsyncHooksContextManager;
+
 describe('Node SDK', () => {
   before(() => {
     // Disable attempted load of default plugins
@@ -127,7 +134,7 @@ describe('Node SDK', () => {
       assert.ok(metrics.getMeterProvider() instanceof NoopMeterProvider);
 
       assert.ok(
-        context['_getContextManager']() instanceof AsyncHooksContextManager
+        context['_getContextManager']() instanceof DefaultContextManager
       );
       assert.ok(
         propagation['_getGlobalPropagator']() instanceof CompositePropagator
@@ -151,7 +158,7 @@ describe('Node SDK', () => {
       assert.ok(metrics.getMeterProvider() instanceof NoopMeterProvider);
 
       assert.ok(
-        context['_getContextManager']() instanceof AsyncHooksContextManager
+        context['_getContextManager']() instanceof DefaultContextManager
       );
       assert.ok(
         propagation['_getGlobalPropagator']() instanceof CompositePropagator