Instrument the federation/backfill part of `/messages` (#13489)

Instrument the federation/backfill part of `/messages` so it's easier to follow what's going on in Jaeger when viewing a trace.

Split out from https://github.com/matrix-org/synapse/pull/13440

Follow-up from https://github.com/matrix-org/synapse/pull/13368

Part of https://github.com/matrix-org/synapse/issues/13356

1 files changed, 4 insertions, 1 deletions

diff --git a/synapse/storage/controllers/state.py b/synapse/storage/controllers/state.py
index 0c78eb735e..1ad002f57b 100644
--- a/synapse/storage/controllers/state.py
+++ b/synapse/storage/controllers/state.py
@@ -29,7 +29,7 @@ from typing import (
 
 from synapse.api.constants import EventTypes
 from synapse.events import EventBase
-from synapse.logging.opentracing import trace
+from synapse.logging.opentracing import tag_args, trace
 from synapse.storage.roommember import ProfileInfo
 from synapse.storage.state import StateFilter
 from synapse.storage.util.partial_state_events_tracker import (
@@ -229,6 +229,7 @@ class StateStorageController:
         return {event: event_to_state[event] for event in event_ids}
 
     @trace
+    @tag_args
     async def get_state_ids_for_events(
         self,
         event_ids: Collection[str],
@@ -333,6 +334,7 @@ class StateStorageController:
         )
 
     @trace
+    @tag_args
     async def get_state_group_for_events(
         self,
         event_ids: Collection[str],
@@ -474,6 +476,7 @@ class StateStorageController:
             prev_stream_id, max_stream_id
         )
 
+    @trace
     async def get_current_state(
         self, room_id: str, state_filter: Optional[StateFilter] = None
     ) -> StateMap[EventBase]: