1 files changed, 2 insertions, 0 deletions
diff --git a/synapse/federation/replication.py b/synapse/federation/replication.py
index 7868575a2e..cadf574b3b 100644
--- a/synapse/federation/replication.py
+++ b/synapse/federation/replication.py
@@ -543,6 +543,8 @@ class _TransactionQueue(object):
         def eb(failure):
             if not deferred.called:
                 deferred.errback(failure)
+            else:
+                logger.exception("Failed to send edu", failure)
         self._attempt_new_transaction(destination).addErrback(eb)
 
         return deferred