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Mute tracing for subprocesses executed by bootstrap telemetry logic. #9005

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Mute tracing for subprocesses executed by bootstrap telemetry logic. #9005

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d230fd8
Mute tracing for subprocesses executed by bootstrap telemetry logic.
AlexeyKuznetsov-DD Jun 18, 2025
9fa8ad6
Missed `@SuppressForbidden`.
AlexeyKuznetsov-DD Jun 18, 2025
199b508
Merge branch 'master' into alexeyk/mute-forwarder-trace
AlexeyKuznetsov-DD Jun 20, 2025
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18 changes: 17 additions & 1 deletion dd-java-agent/src/main/java/datadog/trace/bootstrap/BootstrapInitializationTelemetry.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

import datadog.json.JsonWriter;
import de.thetaphi.forbiddenapis.SuppressForbidden;
import java.io.Closeable;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
Expand Down Expand Up @@ -211,7 +212,8 @@ public ForwarderJsonSenderThread(String forwarderPath, byte[] payload) {
public void run() {
ProcessBuilder builder = new ProcessBuilder(forwarderPath, "library_entrypoint");

try {
// Run forwarder and mute tracing for subprocesses executed in by dd-java-agent.
try (final Closeable ignored = muteTracing()) {
Process process = builder.start();
try (OutputStream out = process.getOutputStream()) {
out.write(payload);
Expand All @@ -221,5 +223,19 @@ public void run() {
System.err.println("Failed to send telemetry: " + e.getMessage());
}
}

@SuppressForbidden
private Closeable muteTracing() {
try {
Class<?> agentTracerClass =
Class.forName("datadog.trace.bootstrap.instrumentation.api.AgentTracer");
Object tracerAPI = agentTracerClass.getMethod("get").invoke(null);
Object scope = tracerAPI.getClass().getMethod("muteTracing").invoke(tracerAPI);
return (Closeable) scope;
} catch (Throwable e) {
// Ignore all exceptions and fallback to No-Op Closable.
return () -> {};
}
}
}
}
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