Min Log Level

BASE/Test/Microsoft.ApplicationInsights.Test/Microsoft.ApplicationInsights.Tests/TelemetryClientTest.cs

@@ -517,9 +517,10 @@ public void TrackTraceWithTraceTelemetryAndProperties()
         [Fact]
         public void TrackTraceWithTraceTelemetryAndAllSeverityLevels()
         {
-            // Test all severity levels in sequence (Note: Verbose/Trace may be filtered by default logger configuration)
+            // Test all severity levels 
             var testData = new[]
             {
+                (SeverityLevel.Verbose, LogLevel.Debug, "Trace-Verbose"),
                 (SeverityLevel.Information, LogLevel.Information, "Trace-Information"),
                 (SeverityLevel.Warning, LogLevel.Warning, "Trace-Warning"),
                 (SeverityLevel.Error, LogLevel.Error, "Trace-Error"),
@@ -537,7 +538,7 @@ public void TrackTraceWithTraceTelemetryAndAllSeverityLevels()
             this.telemetryClient.Flush();
 
             // Verify all logs were collected
-            Assert.True(this.logItems.Count >= 4, $"Expected at least 4 logs, but got {this.logItems.Count}");
+            Assert.True(this.logItems.Count >= 5, $"Expected at least 5 logs, but got {this.logItems.Count}");
 
             // Verify each severity level was logged correctly
             foreach (var (severity, expectedLogLevel, message) in testData)

BASE/src/Microsoft.ApplicationInsights/OpenTelemetryBuilderExtensions.cs

@@ -9,6 +9,8 @@ namespace Microsoft.ApplicationInsights
     using Azure.Monitor.OpenTelemetry.Exporter;
     using Microsoft.ApplicationInsights.Extensibility;
     using Microsoft.ApplicationInsights.Internal;
+    using Microsoft.Extensions.DependencyInjection;
+    using Microsoft.Extensions.Logging;
     using OpenTelemetry;
     using OpenTelemetry.Resources;
 
@@ -34,8 +36,19 @@ public static IOpenTelemetryBuilder WithApplicationInsights(this IOpenTelemetryB
                 .WithMetrics(metrics => metrics.AddMeter(TelemetryConfiguration.ApplicationInsightsMeterName))
                 .WithTracing(tracing => tracing.AddSource(TelemetryConfiguration.ApplicationInsightsActivitySourceName));
 
-            // Note: Connection string should be set via UseAzureMonitor() 
-            // when TelemetryConfiguration.ConnectionString is provided
+            // Ensure that all log severity levels (including Verbose/Debug) pass through
+            // the internal LoggerFactory for the TelemetryClient category. Without this,
+            // the default MinLevel of Information silently drops TrackTrace calls with
+            // SeverityLevel.Verbose. We target only the TelemetryClient category to avoid
+            // lowering the minimum level globally for other loggers in the pipeline.
+            builder.Services.Configure<LoggerFilterOptions>(options =>
+            {
+                options.Rules.Add(new LoggerFilterRule(
+                    providerName: null,
+                    categoryName: "Microsoft.ApplicationInsights.TelemetryClient",
+                    logLevel: LogLevel.Trace,
+                    filter: null));
+            });
 
             return builder;
         }

CHANGELOG.md

@@ -1,7 +1,11 @@
 # Changelog
 
 ## Unreleased
+<<<<<<< harskaur/nlogMinLevel
+- [Fix bug where Debug/Trace level logs from TrackTrace API were not emitted to Application Insights](https://github.com/microsoft/ApplicationInsights-dotnet/pull/3121/changes)
+=======
 - [Fix Track API calls to not mutate the passed in dictionary if it is readonly](https://github.com/microsoft/ApplicationInsights-dotnet/pull/3119)
+>>>>>>> main
 
 ## Version 3.0.0
 - [Replaced `netstandard2.0` with `net8.0` target framework in `Microsoft.ApplicationInsights.NLogTarget` package.](https://github.com/microsoft/ApplicationInsights-dotnet/pull/3102)

LOGGING/test/NLogTarget.Tests/TelemetryTestEnvironment.cs

@@ -57,7 +57,6 @@ public TelemetryConfiguration CreateConfiguration(string connectionString)
                            options.Transport = transport;
                            options.DisableOfflineStorage = true;
                        });
-                builder.Services.Configure<LoggerFilterOptions>(options => options.MinLevel = LogLevel.Trace);
                 builder.WithLogging(logging =>
                     logging.AddProcessor(new SimpleLogRecordExportProcessor(
                         new AzureMonitorRecordingLogExporter(this.collector, () => this.instrumentationKey))));

examples/BasicConsoleApp/Program.cs

@@ -34,6 +34,7 @@ static void Main(string[] args)
             telemetryClient.TrackEvent(new EventTelemetry("SampleEventObject"));
             telemetryClient.TrackTrace("A trace message");
             telemetryClient.TrackTrace("A warning", SeverityLevel.Warning);
+            telemetryClient.TrackTrace("A debug trace", SeverityLevel.Verbose);
             telemetryClient.TrackTrace("A trace with properties", new System.Collections.Generic.Dictionary<string, string> { { "Key", "Value" } });
             telemetryClient.TrackTrace("A trace with severity and properties", SeverityLevel.Error, new System.Collections.Generic.Dictionary<string, string> { { "Key", "Value" } });
             telemetryClient.TrackTrace(new TraceTelemetry("TraceTelemetry object", SeverityLevel.Information));

examples/NLogConsoleApp/Program.cs

@@ -4,7 +4,7 @@
 Console.WriteLine("================================================\n");
 
 NLog.Common.InternalLogger.LogToConsole = true;
-NLog.Common.InternalLogger.LogLevel = NLog.LogLevel.Warn;
+NLog.Common.InternalLogger.LogLevel = NLog.LogLevel.Trace;
 
 /*
 // Optional: Configure Azure Active Directory (AAD) authentication

examples/NLogConsoleApp/nlog.config

@@ -19,6 +19,6 @@
 
   <rules>
     <logger name="*" minlevel="Trace" writeTo="console" />
-    <logger name="*" minlevel="Info" writeTo="aiTarget" />
+    <logger name="*" minlevel="Trace" writeTo="aiTarget" />
   </rules>
 </nlog>