From e1c1df6396409a3030f653bd825f1de8c89b8682 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandor=20Sz=C3=BCcs?= <sandor.szuecs@zalando.de>
Date: Tue, 26 Jan 2021 12:02:35 +0100
Subject: [PATCH] increase visbility for route not found (#1698)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Sandor Szücs <sandor.szuecs@zalando.de>
---
 proxy/proxy.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/proxy/proxy.go b/proxy/proxy.go
index 3297f92c0b..455b6f72d0 100644
--- a/proxy/proxy.go
+++ b/proxy/proxy.go
@@ -1225,6 +1225,10 @@ func (p *Proxy) errorResponse(ctx *context, err error) {
 	if span := ot.SpanFromContext(ctx.Request().Context()); span != nil {
 		p.tracing.setTag(span, ErrorTag, true)
 		p.tracing.setTag(span, HTTPStatusCodeTag, uint16(code))
+		if err == errRouteLookupFailed {
+			span.LogKV("event", "error", "message", errRouteLookup.Error())
+		}
+
 	}
 
 	if p.flags.Debug() {