From 38b346a504cd4155b1986d50ebcff2199e1690be Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Thu, 22 Jul 2021 12:39:50 +0100 Subject: [PATCH] Replace `or_ignore` in `simple_insert` with `simple_upsert` (#10442) Now that we have `simple_upsert` that should be used in preference to trying to insert and looking for an exception. The main benefit is that we ERROR message don't get written to postgres logs. We also have tidy up the return value on `simple_upsert`, rather than having a tri-state of inserted/not-inserted/unknown. --- changelog.d/10442.misc | 1 + synapse/storage/database.py | 51 ++++++-------- synapse/storage/databases/main/devices.py | 9 ++- .../databases/main/monthly_active_users.py | 8 +-- .../storage/databases/main/transactions.py | 8 ++- .../storage/databases/main/user_directory.py | 66 ++++--------------- 6 files changed, 44 insertions(+), 99 deletions(-) create mode 100644 changelog.d/10442.misc diff --git a/changelog.d/10442.misc b/changelog.d/10442.misc new file mode 100644 index 000000000..b8d412d73 --- /dev/null +++ b/changelog.d/10442.misc @@ -0,0 +1 @@ +Replace usage of `or_ignore` in `simple_insert` with `simple_upsert` usage, to stop spamming postgres logs with spurious ERROR messages. diff --git a/synapse/storage/database.py b/synapse/storage/database.py index ccf9ac51e..4d4643619 100644 --- a/synapse/storage/database.py +++ b/synapse/storage/database.py @@ -832,31 +832,16 @@ class DatabasePool: self, table: str, values: Dict[str, Any], - or_ignore: bool = False, desc: str = "simple_insert", - ) -> bool: + ) -> None: """Executes an INSERT query on the named table. Args: table: string giving the table name values: dict of new column names and values for them - or_ignore: bool stating whether an exception should be raised - when a conflicting row already exists. If True, False will be - returned by the function instead desc: description of the transaction, for logging and metrics - - Returns: - Whether the row was inserted or not. Only useful when `or_ignore` is True """ - try: - await self.runInteraction(desc, self.simple_insert_txn, table, values) - except self.engine.module.IntegrityError: - # We have to do or_ignore flag at this layer, since we can't reuse - # a cursor after we receive an error from the db. - if not or_ignore: - raise - return False - return True + await self.runInteraction(desc, self.simple_insert_txn, table, values) @staticmethod def simple_insert_txn( @@ -930,7 +915,7 @@ class DatabasePool: insertion_values: Optional[Dict[str, Any]] = None, desc: str = "simple_upsert", lock: bool = True, - ) -> Optional[bool]: + ) -> bool: """ `lock` should generally be set to True (the default), but can be set @@ -951,8 +936,8 @@ class DatabasePool: desc: description of the transaction, for logging and metrics lock: True to lock the table when doing the upsert. Returns: - Native upserts always return None. Emulated upserts return True if a - new entry was created, False if an existing one was updated. + Returns True if a row was inserted or updated (i.e. if `values` is + not empty then this always returns True) """ insertion_values = insertion_values or {} @@ -995,7 +980,7 @@ class DatabasePool: values: Dict[str, Any], insertion_values: Optional[Dict[str, Any]] = None, lock: bool = True, - ) -> Optional[bool]: + ) -> bool: """ Pick the UPSERT method which works best on the platform. Either the native one (Pg9.5+, recent SQLites), or fall back to an emulated method. @@ -1008,16 +993,15 @@ class DatabasePool: insertion_values: additional key/values to use only when inserting lock: True to lock the table when doing the upsert. Returns: - Native upserts always return None. Emulated upserts return True if a - new entry was created, False if an existing one was updated. + Returns True if a row was inserted or updated (i.e. if `values` is + not empty then this always returns True) """ insertion_values = insertion_values or {} if self.engine.can_native_upsert and table not in self._unsafe_to_upsert_tables: - self.simple_upsert_txn_native_upsert( + return self.simple_upsert_txn_native_upsert( txn, table, keyvalues, values, insertion_values=insertion_values ) - return None else: return self.simple_upsert_txn_emulated( txn, @@ -1045,8 +1029,8 @@ class DatabasePool: insertion_values: additional key/values to use only when inserting lock: True to lock the table when doing the upsert. Returns: - Returns True if a new entry was created, False if an existing - one was updated. + Returns True if a row was inserted or updated (i.e. if `values` is + not empty then this always returns True) """ insertion_values = insertion_values or {} @@ -1086,8 +1070,7 @@ class DatabasePool: txn.execute(sql, sqlargs) if txn.rowcount > 0: - # successfully updated at least one row. - return False + return True # We didn't find any existing rows, so insert a new one allvalues: Dict[str, Any] = {} @@ -1111,15 +1094,19 @@ class DatabasePool: keyvalues: Dict[str, Any], values: Dict[str, Any], insertion_values: Optional[Dict[str, Any]] = None, - ) -> None: + ) -> bool: """ - Use the native UPSERT functionality in recent PostgreSQL versions. + Use the native UPSERT functionality in PostgreSQL. Args: table: The table to upsert into keyvalues: The unique key tables and their new values values: The nonunique columns and their new values insertion_values: additional key/values to use only when inserting + + Returns: + Returns True if a row was inserted or updated (i.e. if `values` is + not empty then this always returns True) """ allvalues: Dict[str, Any] = {} allvalues.update(keyvalues) @@ -1140,6 +1127,8 @@ class DatabasePool: ) txn.execute(sql, list(allvalues.values())) + return bool(txn.rowcount) + async def simple_upsert_many( self, table: str, diff --git a/synapse/storage/databases/main/devices.py b/synapse/storage/databases/main/devices.py index 18f07d96d..3816a0ca5 100644 --- a/synapse/storage/databases/main/devices.py +++ b/synapse/storage/databases/main/devices.py @@ -1078,16 +1078,18 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore): return False try: - inserted = await self.db_pool.simple_insert( + inserted = await self.db_pool.simple_upsert( "devices", - values={ + keyvalues={ "user_id": user_id, "device_id": device_id, + }, + values={}, + insertion_values={ "display_name": initial_device_display_name, "hidden": False, }, desc="store_device", - or_ignore=True, ) if not inserted: # if the device already exists, check if it's a real device, or @@ -1099,6 +1101,7 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore): ) if hidden: raise StoreError(400, "The device ID is in use", Codes.FORBIDDEN) + self.device_id_exists_cache.set(key, True) return inserted except StoreError: diff --git a/synapse/storage/databases/main/monthly_active_users.py b/synapse/storage/databases/main/monthly_active_users.py index fe2563828..d213b2670 100644 --- a/synapse/storage/databases/main/monthly_active_users.py +++ b/synapse/storage/databases/main/monthly_active_users.py @@ -297,17 +297,13 @@ class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore): Args: txn (cursor): user_id (str): user to add/update - - Returns: - bool: True if a new entry was created, False if an - existing one was updated. """ # Am consciously deciding to lock the table on the basis that is ought # never be a big table and alternative approaches (batching multiple # upserts into a single txn) introduced a lot of extra complexity. # See https://github.com/matrix-org/synapse/issues/3854 for more - is_insert = self.db_pool.simple_upsert_txn( + self.db_pool.simple_upsert_txn( txn, table="monthly_active_users", keyvalues={"user_id": user_id}, @@ -322,8 +318,6 @@ class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore): txn, self.user_last_seen_monthly_active, (user_id,) ) - return is_insert - async def populate_monthly_active_users(self, user_id): """Checks on the state of monthly active user limits and optionally add the user to the monthly active tables diff --git a/synapse/storage/databases/main/transactions.py b/synapse/storage/databases/main/transactions.py index d211c423b..7728d5f10 100644 --- a/synapse/storage/databases/main/transactions.py +++ b/synapse/storage/databases/main/transactions.py @@ -134,16 +134,18 @@ class TransactionWorkerStore(CacheInvalidationWorkerStore): response_dict: The response, to be encoded into JSON. """ - await self.db_pool.simple_insert( + await self.db_pool.simple_upsert( table="received_transactions", - values={ + keyvalues={ "transaction_id": transaction_id, "origin": origin, + }, + values={}, + insertion_values={ "response_code": code, "response_json": db_binary_type(encode_canonical_json(response_dict)), "ts": self._clock.time_msec(), }, - or_ignore=True, desc="set_received_txn_response", ) diff --git a/synapse/storage/databases/main/user_directory.py b/synapse/storage/databases/main/user_directory.py index a6bfb4902..9d28d69ac 100644 --- a/synapse/storage/databases/main/user_directory.py +++ b/synapse/storage/databases/main/user_directory.py @@ -377,7 +377,7 @@ class UserDirectoryBackgroundUpdateStore(StateDeltasStore): avatar_url = None def _update_profile_in_user_dir_txn(txn): - new_entry = self.db_pool.simple_upsert_txn( + self.db_pool.simple_upsert_txn( txn, table="user_directory", keyvalues={"user_id": user_id}, @@ -388,8 +388,7 @@ class UserDirectoryBackgroundUpdateStore(StateDeltasStore): if isinstance(self.database_engine, PostgresEngine): # We weight the localpart most highly, then display name and finally # server name - if self.database_engine.can_native_upsert: - sql = """ + sql = """ INSERT INTO user_directory_search(user_id, vector) VALUES (?, setweight(to_tsvector('simple', ?), 'A') @@ -397,58 +396,15 @@ class UserDirectoryBackgroundUpdateStore(StateDeltasStore): || setweight(to_tsvector('simple', COALESCE(?, '')), 'B') ) ON CONFLICT (user_id) DO UPDATE SET vector=EXCLUDED.vector """ - txn.execute( - sql, - ( - user_id, - get_localpart_from_id(user_id), - get_domain_from_id(user_id), - display_name, - ), - ) - else: - # TODO: Remove this code after we've bumped the minimum version - # of postgres to always support upserts, so we can get rid of - # `new_entry` usage - if new_entry is True: - sql = """ - INSERT INTO user_directory_search(user_id, vector) - VALUES (?, - setweight(to_tsvector('simple', ?), 'A') - || setweight(to_tsvector('simple', ?), 'D') - || setweight(to_tsvector('simple', COALESCE(?, '')), 'B') - ) - """ - txn.execute( - sql, - ( - user_id, - get_localpart_from_id(user_id), - get_domain_from_id(user_id), - display_name, - ), - ) - elif new_entry is False: - sql = """ - UPDATE user_directory_search - SET vector = setweight(to_tsvector('simple', ?), 'A') - || setweight(to_tsvector('simple', ?), 'D') - || setweight(to_tsvector('simple', COALESCE(?, '')), 'B') - WHERE user_id = ? - """ - txn.execute( - sql, - ( - get_localpart_from_id(user_id), - get_domain_from_id(user_id), - display_name, - user_id, - ), - ) - else: - raise RuntimeError( - "upsert returned None when 'can_native_upsert' is False" - ) + txn.execute( + sql, + ( + user_id, + get_localpart_from_id(user_id), + get_domain_from_id(user_id), + display_name, + ), + ) elif isinstance(self.database_engine, Sqlite3Engine): value = "%s %s" % (user_id, display_name) if display_name else user_id self.db_pool.simple_upsert_txn(