From f1c6b76418c2a129ec2f0183936221b134b1b07e Mon Sep 17 00:00:00 2001 From: Azrenbeth <77782548+Azrenbeth@users.noreply.github.com> Date: Mon, 6 Sep 2021 16:08:25 +0100 Subject: Add logging to help debug #9424 (#10704) --- changelog.d/10704.bugfix | 1 + synapse/handlers/sync.py | 67 ++++++++++++++++++++++++++++++++++++++---------- 2 files changed, 55 insertions(+), 13 deletions(-) create mode 100644 changelog.d/10704.bugfix diff --git a/changelog.d/10704.bugfix b/changelog.d/10704.bugfix new file mode 100644 index 0000000000..4284cddc2b --- /dev/null +++ b/changelog.d/10704.bugfix @@ -0,0 +1 @@ +Added opentrace logging to help debug #9424. \ No newline at end of file diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index 86c3c7f0df..e017b28cd2 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -505,10 +505,13 @@ class SyncHandler: else: limited = False + log_kv({"limited": limited}) + if potential_recents: recents = sync_config.filter_collection.filter_room_timeline( potential_recents ) + log_kv({"recents_after_sync_filtering": len(recents)}) # We check if there are any state events, if there are then we pass # all current state events to the filter_events function. This is to @@ -526,6 +529,7 @@ class SyncHandler: recents, always_include_ids=current_state_ids, ) + log_kv({"recents_after_visibility_filtering": len(recents)}) else: recents = [] @@ -566,10 +570,15 @@ class SyncHandler: events, end_key = await self.store.get_recent_events_for_room( room_id, limit=load_limit + 1, end_token=end_key ) + + log_kv({"loaded_recents": len(events)}) + loaded_recents = sync_config.filter_collection.filter_room_timeline( events ) + log_kv({"loaded_recents_after_sync_filtering": len(loaded_recents)}) + # We check if there are any state events, if there are then we pass # all current state events to the filter_events function. This is to # ensure that we always include current state in the timeline @@ -586,6 +595,9 @@ class SyncHandler: loaded_recents, always_include_ids=current_state_ids, ) + + log_kv({"loaded_recents_after_client_filtering": len(loaded_recents)}) + loaded_recents.extend(recents) recents = loaded_recents @@ -1116,6 +1128,8 @@ class SyncHandler: logger.debug("Fetching group data") await self._generate_sync_entry_for_groups(sync_result_builder) + num_events = 0 + # debug for https://github.com/matrix-org/synapse/issues/4422 for joined_room in sync_result_builder.joined: room_id = joined_room.room_id @@ -1123,6 +1137,14 @@ class SyncHandler: issue4422_logger.debug( "Sync result for newly joined room %s: %r", room_id, joined_room ) + num_events += len(joined_room.timeline.events) + + log_kv( + { + "joined_rooms_in_result": len(sync_result_builder.joined), + "events_in_result": num_events, + } + ) logger.debug("Sync response calculation complete") return SyncResult( @@ -1467,6 +1489,7 @@ class SyncHandler: if not sync_result_builder.full_state: if since_token and not ephemeral_by_room and not account_data_by_room: have_changed = await self._have_rooms_changed(sync_result_builder) + log_kv({"rooms_have_changed": have_changed}) if not have_changed: tags_by_room = await self.store.get_updated_tags( user_id, since_token.account_data_key @@ -1501,25 +1524,30 @@ class SyncHandler: tags_by_room = await self.store.get_tags_for_user(user_id) + log_kv({"rooms_changed": len(room_changes.room_entries)}) + room_entries = room_changes.room_entries invited = room_changes.invited knocked = room_changes.knocked newly_joined_rooms = room_changes.newly_joined_rooms newly_left_rooms = room_changes.newly_left_rooms - async def handle_room_entries(room_entry): - logger.debug("Generating room entry for %s", room_entry.room_id) - res = await self._generate_room_entry( - sync_result_builder, - ignored_users, - room_entry, - ephemeral=ephemeral_by_room.get(room_entry.room_id, []), - tags=tags_by_room.get(room_entry.room_id), - account_data=account_data_by_room.get(room_entry.room_id, {}), - always_include=sync_result_builder.full_state, - ) - logger.debug("Generated room entry for %s", room_entry.room_id) - return res + async def handle_room_entries(room_entry: "RoomSyncResultBuilder"): + with start_active_span("generate_room_entry"): + set_tag("room_id", room_entry.room_id) + log_kv({"events": len(room_entry.events or [])}) + logger.debug("Generating room entry for %s", room_entry.room_id) + res = await self._generate_room_entry( + sync_result_builder, + ignored_users, + room_entry, + ephemeral=ephemeral_by_room.get(room_entry.room_id, []), + tags=tags_by_room.get(room_entry.room_id), + account_data=account_data_by_room.get(room_entry.room_id, {}), + always_include=sync_result_builder.full_state, + ) + logger.debug("Generated room entry for %s", room_entry.room_id) + return res await concurrently_execute(handle_room_entries, room_entries, 10) @@ -1932,6 +1960,12 @@ class SyncHandler: room_id = room_builder.room_id since_token = room_builder.since_token upto_token = room_builder.upto_token + log_kv( + { + "since_token": since_token, + "upto_token": upto_token, + } + ) batch = await self._load_filtered_recents( room_id, @@ -1941,6 +1975,13 @@ class SyncHandler: potential_recents=events, newly_joined_room=newly_joined, ) + log_kv( + { + "batch_events": len(batch.events), + "prev_batch": batch.prev_batch, + "batch_limited": batch.limited, + } + ) # Note: `batch` can be both empty and limited here in the case where # `_load_filtered_recents` can't find any events the user should see -- cgit 1.4.1