add logging for all the places we call resolve_state_groups. my kingdom for a backtrace that actually works.

1 files changed, 1 insertions, 0 deletions

diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index a99986714d..641f2bb065 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -290,6 +290,7 @@ class Auth(object):
         with Measure(self.clock, "check_host_in_room"):
             latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
 
+            logger.info("calling resolve_state_groups from check_host_in_room");
             entry = yield self.state.resolve_state_groups(
                 room_id, latest_event_ids
             )