From 20e46b673fb478fb2cb361f8b30225bf6d06a06b Mon Sep 17 00:00:00 2001
From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Fri, 17 Aug 2018 12:13:16 +0200
Subject: [PATCH] rec: Every thread listen on all TCP sockets without
 reuseport/distributes

---
 pdns/pdns_recursor.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pdns/pdns_recursor.cc b/pdns/pdns_recursor.cc
index d7e2de8d1..4c768fe84 100644
--- a/pdns/pdns_recursor.cc
+++ b/pdns/pdns_recursor.cc
@@ -3102,6 +3102,14 @@ static int serviceMain(int argc, char*argv[])
   else {
     makeUDPServerSockets(0);
     makeTCPServerSockets(0);
+
+    if (!g_weDistributeQueries) {
+      /* we are not distributing queries and we don't have reuseport,
+         so every thread will be listening on all the TCP sockets */
+      for (unsigned int threadId = 1; threadId < g_numWorkerThreads; threadId++) {
+        g_tcpListenSockets[threadId] = g_tcpListenSockets[0];
+      }
+    }
   }
 
   SyncRes::parseEDNSSubnetWhitelist(::arg()["edns-subnet-whitelist"]);
-- 
2.49.0