From 98e733fb825e39b3cc712681bddb06deb69143e6 Mon Sep 17 00:00:00 2001
From: Igor Unanua <igor.unanua@datadoghq.com>
Date: Thu, 9 Jan 2025 15:16:36 +0100
Subject: [PATCH] Log when setting priority on a noop span (#5086)

---
 packages/dd-trace/src/priority_sampler.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/dd-trace/src/priority_sampler.js b/packages/dd-trace/src/priority_sampler.js
index 7497f1f919c..a054a82f668 100644
--- a/packages/dd-trace/src/priority_sampler.js
+++ b/packages/dd-trace/src/priority_sampler.js
@@ -122,7 +122,10 @@ class PrioritySampler {
     const context = this._getContext(span)
     const root = context._trace.started[0]
 
-    if (!root) return // noop span
+    if (!root) {
+      log.error('Skipping the setPriority on noop span')
+      return // noop span
+    }
 
     context._sampling.priority = samplingPriority
     context._sampling.mechanism = mechanism