From f9c1a7bc33ef8fd19aa18ce6951a0dd6fd3ff688 Mon Sep 17 00:00:00 2001
From: Dmitri Bogomolov <4glitch@gmail.com>
Date: Wed, 24 Mar 2021 14:54:36 +0200
Subject: [PATCH] Sudden KeyError in addKnownNode()

---
 src/network/knownnodes.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/network/knownnodes.py b/src/network/knownnodes.py
index f23fcf7e..c3d121c1 100644
--- a/src/network/knownnodes.py
+++ b/src/network/knownnodes.py
@@ -159,7 +159,10 @@ def addKnownNode(stream, peer, lastseen=None, is_self=False):
             if stream == prev['stream']:
                 if lastseen - prev['lastseen'] > 3600 * 24:
                     # more than a day ago, this should be port change
-                    del knownNodes[stream][Peer(peer.host, prev['port'])]
+                    try:
+                        del knownNodes[stream][Peer(peer.host, prev['port'])]
+                    except KeyError:
+                        pass
                     outages[peer.host]['port'] = peer.port
                 else:
                     rating = -0.2