diff --git a/changelog.d/3966.misc b/changelog.d/3966.misc
new file mode 100644
index 0000000000..1e3c8e1706
--- /dev/null
+++ b/changelog.d/3966.misc
@@ -0,0 +1 @@
+Improve the logging when handling a federation transaction
\ No newline at end of file
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 2ccdc3bfa7..a70ae8c830 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -572,6 +572,10 @@ class FederationHandler(BaseHandler):
})
seen_ids.add(e.event_id)
+ logger.info(
+ "[%s %s] persisting newly-received auth/state events %s",
+ room_id, event_id, [e["event"].event_id for e in event_infos]
+ )
yield self._handle_new_events(origin, event_infos)
try:
diff --git a/synapse/state/v1.py b/synapse/state/v1.py
index c95477d318..7a7157b352 100644
--- a/synapse/state/v1.py
+++ b/synapse/state/v1.py
@@ -65,10 +65,15 @@ def resolve_events_with_factory(state_sets, event_map, state_map_factory):
for event_ids in itervalues(conflicted_state)
for event_id in event_ids
)
+ needed_event_count = len(needed_events)
if event_map is not None:
needed_events -= set(iterkeys(event_map))
- logger.info("Asking for %d conflicted events", len(needed_events))
+ logger.info(
+ "Asking for %d/%d conflicted events",
+ len(needed_events),
+ needed_event_count,
+ )
# dict[str, FrozenEvent]: a map from state event id to event. Only includes
# the state events which are in conflict (and those in event_map)
@@ -85,11 +90,16 @@ def resolve_events_with_factory(state_sets, event_map, state_map_factory):
)
new_needed_events = set(itervalues(auth_events))
+ new_needed_event_count = len(new_needed_events)
new_needed_events -= needed_events
if event_map is not None:
new_needed_events -= set(iterkeys(event_map))
- logger.info("Asking for %d auth events", len(new_needed_events))
+ logger.info(
+ "Asking for %d/%d auth events",
+ len(new_needed_events),
+ new_needed_event_count,
+ )
state_map_new = yield state_map_factory(new_needed_events)
state_map.update(state_map_new)
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