Reduce amount of logging at INFO level. (#6862)

A lot of the things we log at INFO are now a bit superfluous, so lets
make them DEBUG logs to reduce the amount we log by default.

Co-Authored-By: Brendan Abolivier <babolivier@matrix.org>
Co-authored-by: Brendan Abolivier <github@brendanabolivier.com>

synapse/handlers/room.py

@@ -259,7 +259,7 @@ class RoomCreationHandler(BaseHandler):
         for v in ("invite", "events_default"):
             current = int(pl_content.get(v, 0))
             if current < restricted_level:
-                logger.info(
+                logger.debug(
                     "Setting level for %s in %s to %i (was %i)",
                     v,
                     old_room_id,
@@ -269,7 +269,7 @@ class RoomCreationHandler(BaseHandler):
                 pl_content[v] = restricted_level
                 updated = True
             else:
-                logger.info("Not setting level for %s (already %i)", v, current)
+                logger.debug("Not setting level for %s (already %i)", v, current)
 
         if updated:
             try:
@@ -296,7 +296,7 @@ class RoomCreationHandler(BaseHandler):
             EventTypes.Aliases, events_default
         )
 
-        logger.info("Setting correct PLs in new room to %s", new_pl_content)
+        logger.debug("Setting correct PLs in new room to %s", new_pl_content)
         yield self.event_creation_handler.create_and_send_nonmember_event(
             requester,
             {
@@ -782,7 +782,7 @@ class RoomCreationHandler(BaseHandler):
         @defer.inlineCallbacks
         def send(etype, content, **kwargs):
             event = create(etype, content, **kwargs)
-            logger.info("Sending %s in new room", etype)
+            logger.debug("Sending %s in new room", etype)
             yield self.event_creation_handler.create_and_send_nonmember_event(
                 creator, event, ratelimit=False
             )
@@ -796,7 +796,7 @@ class RoomCreationHandler(BaseHandler):
         creation_content.update({"creator": creator_id})
         yield send(etype=EventTypes.Create, content=creation_content)
 
-        logger.info("Sending %s in new room", EventTypes.Member)
+        logger.debug("Sending %s in new room", EventTypes.Member)
         yield self.room_member_handler.update_membership(
             creator,
             creator.user,

synapse/handlers/stats.py

@@ -300,7 +300,7 @@ class StatsHandler(StateDeltasHandler):
                 room_state["guest_access"] = event_content.get("guest_access")
 
         for room_id, state in room_to_state_updates.items():
-            logger.info("Updating room_stats_state for %s: %s", room_id, state)
+            logger.debug("Updating room_stats_state for %s: %s", room_id, state)
             yield self.store.update_room_state(room_id, state)
 
         return room_to_stats_deltas, user_to_stats_deltas

synapse/handlers/sync.py

@@ -968,7 +968,7 @@ class SyncHandler(object):
         # Always use the `now_token` in `SyncResultBuilder`
         now_token = await self.event_sources.get_current_token()
 
-        logger.info(
+        logger.debug(
             "Calculating sync response for %r between %s and %s",
             sync_config.user,
             since_token,
@@ -1498,7 +1498,7 @@ class SyncHandler(object):
         room_entries = []
         invited = []
         for room_id, events in iteritems(mem_change_events_by_room_id):
-            logger.info(
+            logger.debug(
                 "Membership changes in %s: [%s]",
                 room_id,
                 ", ".join(("%s (%s)" % (e.event_id, e.membership) for e in events)),
@@ -1892,7 +1892,7 @@ class SyncHandler(object):
 
             if batch.limited and since_token:
                 user_id = sync_result_builder.sync_config.user.to_string()
-                logger.info(
+                logger.debug(
                     "Incremental gappy sync of %s for user %s with %d state events"
                     % (room_id, user_id, len(state))
                 )

synapse/handlers/user_directory.py

@@ -149,7 +149,7 @@ class UserDirectoryHandler(StateDeltasHandler):
                     self.pos, room_max_stream_ordering
                 )
 
-                logger.info("Handling %d state deltas", len(deltas))
+                logger.debug("Handling %d state deltas", len(deltas))
                 yield self._handle_deltas(deltas)
 
                 self.pos = max_pos
@@ -195,7 +195,7 @@ class UserDirectoryHandler(StateDeltasHandler):
                         room_id, self.server_name
                     )
                     if not is_in_room:
-                        logger.info("Server left room: %r", room_id)
+                        logger.debug("Server left room: %r", room_id)
                         # Fetch all the users that we marked as being in user
                         # directory due to being in the room and then check if
                         # need to remove those users or not