From 6bdebef034ab38639af5e9ac9df163c7fa7331a9 Mon Sep 17 00:00:00 2001
From: Oliver Freyermuth <freyermuth@physik.uni-bonn.de>
Date: Thu, 14 Mar 2024 20:01:15 +0100
Subject: [PATCH] tracereport: also catch gaierror for gethostbyaddr()

socket.gethostbyaddr() throws a socket.gaierror exception
if the address can not be resolved which was not caught before.

Fixes regression introduced by e7d7c6f , after which
Pilot yielded stage-in and stage-out errors with backtrace
for sites using a non-DNS resolvable PANDA_HOSTNAME
(VMs, long-lived containers,...).
---
 pilot/util/tracereport.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pilot/util/tracereport.py b/pilot/util/tracereport.py
index 46cb3e11..5b6d8cbc 100644
--- a/pilot/util/tracereport.py
+++ b/pilot/util/tracereport.py
@@ -115,7 +115,7 @@ def init(self, job):
 
         try:
             self['hostname'] = socket.gethostbyaddr(hostname)[0]
-        except socket.herror as exc:
+        except (socket.gaierror, socket.herror) as exc:
             logger.warning(f'unable to detect hostname by address for trace report: {exc}')
             self['hostname'] = 'unknown'