update

Author: zhiyuanliang-ms

src/Microsoft.Extensions.Configuration.AzureAppConfiguration/AzureAppConfigurationProvider.cs

@@ -23,6 +23,8 @@ namespace Microsoft.Extensions.Configuration.AzureAppConfiguration
 {
     internal class AzureAppConfigurationProvider : ConfigurationProvider, IConfigurationRefresher, IDisposable
     {
+        private readonly ActivitySource _activitySource = new ActivitySource(ActivityConstants.AzureAppConfigurationActivitySource);
+
         private bool _optional;
         private bool _isInitialLoadComplete = false;
         private bool _isAssemblyInspected;
@@ -58,14 +60,6 @@ private class ConfigurationClientBackoffStatus
             public DateTimeOffset BackoffEndTime { get; set; }
         }
 
-        private readonly ActivitySource _activitySource = new ActivitySource(ActivityConstants.AzureAppConfigurationActivitySource);
-
-        private readonly ActivityListener _activityListener = new ActivityListener
-        {
-            ShouldListenTo = (activitySource) => activitySource.Name == ActivityConstants.AzureAppConfigurationActivitySource,
-            Sample = (ref ActivityCreationOptions<ActivityContext> options) => ActivitySamplingResult.AllData
-        };
-
         public DateTimeOffset? LastSuccessfulAttempt { get; private set; } = null;
         public DateTimeOffset? LastFailedAttempt { get; private set; } = null;
 
@@ -164,8 +158,6 @@ public AzureAppConfigurationProvider(IConfigurationClientManager configClientMan
             {
                 SetRequestTracingOptions();
             }
-
-            ActivitySource.AddActivityListener(_activityListener);
         }
 
         /// <summary>
@@ -1429,7 +1421,6 @@ public void Dispose()
         {
             (_configClientManager as ConfigurationClientManager)?.Dispose();
             _activitySource.Dispose();
-            _activityListener.Dispose();
         }
     }
 }