diff options
Diffstat (limited to '')
| -rw-r--r-- | changelog.d/15215.misc | 1 | ||||
| -rw-r--r-- | synapse/storage/database.py | 10 | ||||
| -rw-r--r-- | synapse/storage/databases/main/end_to_end_keys.py | 24 |
3 files changed, 26 insertions, 9 deletions
diff --git a/changelog.d/15215.misc b/changelog.d/15215.misc new file mode 100644 index 0000000000..fe52a56a7e --- /dev/null +++ b/changelog.d/15215.misc @@ -0,0 +1 @@ +Refactor database transaction for query users' devices to reduce database pool contention. diff --git a/synapse/storage/database.py b/synapse/storage/database.py index feaa6cdd07..5efe31aa19 100644 --- a/synapse/storage/database.py +++ b/synapse/storage/database.py @@ -672,7 +672,15 @@ class DatabasePool: f = cast(types.FunctionType, func) # type: ignore[redundant-cast] if f.__closure__: for i, cell in enumerate(f.__closure__): - if inspect.isgenerator(cell.cell_contents): + try: + contents = cell.cell_contents + except ValueError: + # cell.cell_contents can raise if the "cell" is empty, + # which indicates that the variable is currently + # unbound. + continue + + if inspect.isgenerator(contents): logger.error( "Programming error: function %s references generator %s " "via its closure", diff --git a/synapse/storage/databases/main/end_to_end_keys.py b/synapse/storage/databases/main/end_to_end_keys.py index b9c39b1718..a3b6c8ae8e 100644 --- a/synapse/storage/databases/main/end_to_end_keys.py +++ b/synapse/storage/databases/main/end_to_end_keys.py @@ -244,9 +244,7 @@ class EndToEndKeyWorkerStore(EndToEndKeyBackgroundStore, CacheInvalidationWorker set_tag("include_all_devices", include_all_devices) set_tag("include_deleted_devices", include_deleted_devices) - result = await self.db_pool.runInteraction( - "get_e2e_device_keys", - self._get_e2e_device_keys_txn, + result = await self._get_e2e_device_keys( query_list, include_all_devices, include_deleted_devices, @@ -285,9 +283,8 @@ class EndToEndKeyWorkerStore(EndToEndKeyBackgroundStore, CacheInvalidationWorker log_kv(result) return result - def _get_e2e_device_keys_txn( + async def _get_e2e_device_keys( self, - txn: LoggingTransaction, query_list: Collection[Tuple[str, Optional[str]]], include_all_devices: bool = False, include_deleted_devices: bool = False, @@ -319,7 +316,7 @@ class EndToEndKeyWorkerStore(EndToEndKeyBackgroundStore, CacheInvalidationWorker if user_list: user_id_in_list_clause, user_args = make_in_list_sql_clause( - txn.database_engine, "user_id", user_list + self.database_engine, "user_id", user_list ) query_clauses.append(user_id_in_list_clause) query_params_list.append(user_args) @@ -332,13 +329,16 @@ class EndToEndKeyWorkerStore(EndToEndKeyBackgroundStore, CacheInvalidationWorker user_device_id_in_list_clause, user_device_args, ) = make_tuple_in_list_sql_clause( - txn.database_engine, ("user_id", "device_id"), user_device_batch + self.database_engine, ("user_id", "device_id"), user_device_batch ) query_clauses.append(user_device_id_in_list_clause) query_params_list.append(user_device_args) result: Dict[str, Dict[str, Optional[DeviceKeyLookupResult]]] = {} - for query_clause, query_params in zip(query_clauses, query_params_list): + + def get_e2e_device_keys_txn( + txn: LoggingTransaction, query_clause: str, query_params: list + ) -> None: sql = ( "SELECT user_id, device_id, " " d.display_name, " @@ -361,6 +361,14 @@ class EndToEndKeyWorkerStore(EndToEndKeyBackgroundStore, CacheInvalidationWorker display_name, db_to_json(key_json) if key_json else None ) + for query_clause, query_params in zip(query_clauses, query_params_list): + await self.db_pool.runInteraction( + "_get_e2e_device_keys", + get_e2e_device_keys_txn, + query_clause, + query_params, + ) + if include_deleted_devices: for user_id, device_id in deleted_devices: if device_id is None: |