feat: add a low default sample ratio (#28)

* feat: add a low default sample ratio * refactor: diff sample rate per env
monta-app · Dec 5, 2024 · abac513 · abac513
1 parent 8da12e5
commit abac513
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/main/kotlin/com/monta/otel/extension/Customizer.java b/src/main/kotlin/com/monta/otel/extension/Customizer.java
@@ -10,6 +10,7 @@
 import io.opentelemetry.semconv.ServiceAttributes;
 import io.opentelemetry.semconv.UrlAttributes;
 
+import java.util.Objects;
 import java.util.UUID;
 
 /**
@@ -60,7 +61,8 @@ private static Sampler getSampler() {
                 return Sampler.alwaysOff();
             }
         } else {
-            return Sampler.alwaysOn();
+            double rate = Objects.equals(System.getenv("STAGE"), "production") ? 0.1 : 1.0;
+            return Sampler.traceIdRatioBased(rate);
         }
     }
 }