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| -rw-r--r-- | changelog.d/12068.misc | 1 | ||||
| -rw-r--r-- | synapse/handlers/sync.py | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/changelog.d/12068.misc b/changelog.d/12068.misc new file mode 100644 index 0000000000..72b211e4f5 --- /dev/null +++ b/changelog.d/12068.misc @@ -0,0 +1 @@ +Add some logging to `/sync` to try and track down #11916. diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index 98eaad3318..0aa3052fd6 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -697,6 +697,15 @@ class SyncHandler: else: # no events in this room - so presumably no state state = {} + + # (erikj) This should be rarely hit, but we've had some reports that + # we get more state down gappy syncs than we should, so let's add + # some logging. + logger.info( + "Failed to find any events in room %s at %s", + room_id, + stream_position.room_key, + ) return state async def compute_summary( |