From 7775675392f4e55110618e2c64fc1633e41ac3c4 Mon Sep 17 00:00:00 2001
From: thinkgo <thinkgo@aliyun.com>
Date: Fri, 21 Jan 2022 11:55:49 +0800
Subject: [PATCH] Fix getting-started.md Run function, it assigns this new
 context to a variable shared between connections in to accept loop. Thus
 creating a growing chain of contexts. so every calculate fibonacci request,
 all spans in a trace.

---
 website_docs/getting-started.md | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/website_docs/getting-started.md b/website_docs/getting-started.md
index 35886692be4..ce89d61f2a9 100644
--- a/website_docs/getting-started.md
+++ b/website_docs/getting-started.md
@@ -184,16 +184,15 @@ Start by instrumenting the `Run` method.
 // Run starts polling users for Fibonacci number requests and writes results.
 func (a *App) Run(ctx context.Context) error {
 	for {
-		var span trace.Span
-		ctx, span = otel.Tracer(name).Start(ctx, "Run")
+		newCtx, span := otel.Tracer(name).Start(ctx, "Run")
 
-		n, err := a.Poll(ctx)
+		n, err := a.Poll(newCtx)
 		if err != nil {
 			span.End()
 			return err
 		}
 
-		a.Write(ctx, n)
+		a.Write(newCtx, n)
 		span.End()
 	}
 }