From 2b2ab383329aaaac3160656b2abe2fcc8ab42e79 Mon Sep 17 00:00:00 2001
From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Mon, 31 Jul 2017 10:17:28 +0200
Subject: [PATCH] dnsdist: Skip timeouts on the response latency graph

---
 pdns/dnsdist-lua.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pdns/dnsdist-lua.cc b/pdns/dnsdist-lua.cc
index 84c51f0c2d..2a87d38f28 100644
--- a/pdns/dnsdist-lua.cc
+++ b/pdns/dnsdist-lua.cc
@@ -1461,10 +1461,14 @@ vector<std::function<void(void)>> setupLua(bool client, const std::string& confi
       }
 
       double totlat=0;
-      int size=0;
+      unsigned int size=0;
       {
 	std::lock_guard<std::mutex> lock(g_rings.respMutex);
 	for(const auto& r : g_rings.respRing) {
+          /* skip actively discovered timeouts */
+          if (r.usec == std::numeric_limits<unsigned int>::max())
+            continue;
+
 	  ++size;
 	  auto iter = histo.lower_bound(r.usec);
 	  if(iter != histo.end())
-- 
2.47.2