11 files changed, 10 insertions, 83 deletions
diff --git a/synapse/replication/slave/storage/_base.py b/synapse/replication/slave/storage/_base.py
deleted file mode 100644
index 7644146dba..0000000000
--- a/synapse/replication/slave/storage/_base.py
+++ /dev/null
@@ -1,58 +0,0 @@
-# Copyright 2016 OpenMarket Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import logging
-from typing import TYPE_CHECKING, Optional
-
-from synapse.storage.database import DatabasePool, LoggingDatabaseConnection
-from synapse.storage.databases.main.cache import CacheInvalidationWorkerStore
-from synapse.storage.engines import PostgresEngine
-from synapse.storage.util.id_generators import MultiWriterIdGenerator
-
-if TYPE_CHECKING:
-    from synapse.server import HomeServer
-
-logger = logging.getLogger(__name__)
-
-
-class BaseSlavedStore(CacheInvalidationWorkerStore):
-    def __init__(
-        self,
-        database: DatabasePool,
-        db_conn: LoggingDatabaseConnection,
-        hs: "HomeServer",
-    ):
-        super().__init__(database, db_conn, hs)
-        if isinstance(self.database_engine, PostgresEngine):
-            self._cache_id_gen: Optional[
-                MultiWriterIdGenerator
-            ] = MultiWriterIdGenerator(
-                db_conn,
-                database,
-                stream_name="caches",
-                instance_name=hs.get_instance_name(),
-                tables=[
-                    (
-                        "cache_invalidation_stream_by_instance",
-                        "instance_name",
-                        "stream_id",
-                    )
-                ],
-                sequence_name="cache_invalidation_stream_seq",
-                writers=[],
-            )
-        else:
-            self._cache_id_gen = None
-
-        self.hs = hs
diff --git a/synapse/replication/slave/storage/account_data.py b/synapse/replication/slave/storage/account_data.py
index ee74ee7d85..57d3237981 100644
--- a/synapse/replication/slave/storage/account_data.py
+++ b/synapse/replication/slave/storage/account_data.py
@@ -13,10 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from synapse.replication.slave.storage._base import BaseSlavedStore
 from synapse.storage.databases.main.account_data import AccountDataWorkerStore
 from synapse.storage.databases.main.tags import TagsWorkerStore
 
 
-class SlavedAccountDataStore(TagsWorkerStore, AccountDataWorkerStore, BaseSlavedStore):
+class SlavedAccountDataStore(TagsWorkerStore, AccountDataWorkerStore):
     pass
diff --git a/synapse/replication/slave/storage/deviceinbox.py b/synapse/replication/slave/storage/deviceinbox.py
index e940751084..df9e4d8f45 100644
--- a/synapse/replication/slave/storage/deviceinbox.py
+++ b/synapse/replication/slave/storage/deviceinbox.py
@@ -12,9 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from synapse.replication.slave.storage._base import BaseSlavedStore
 from synapse.storage.databases.main.deviceinbox import DeviceInboxWorkerStore
 
 
-class SlavedDeviceInboxStore(DeviceInboxWorkerStore, BaseSlavedStore):
+class SlavedDeviceInboxStore(DeviceInboxWorkerStore):
     pass
diff --git a/synapse/replication/slave/storage/devices.py b/synapse/replication/slave/storage/devices.py
index a48cc02069..6fcade510a 100644
--- a/synapse/replication/slave/storage/devices.py
+++ b/synapse/replication/slave/storage/devices.py
@@ -14,7 +14,6 @@
 
 from typing import TYPE_CHECKING, Any, Iterable
 
-from synapse.replication.slave.storage._base import BaseSlavedStore
 from synapse.replication.slave.storage._slaved_id_tracker import SlavedIdTracker
 from synapse.replication.tcp.streams._base import DeviceListsStream, UserSignatureStream
 from synapse.storage.database import DatabasePool, LoggingDatabaseConnection
@@ -24,7 +23,7 @@ if TYPE_CHECKING:
     from synapse.server import HomeServer
 
 
-class SlavedDeviceStore(DeviceWorkerStore, BaseSlavedStore):
+class SlavedDeviceStore(DeviceWorkerStore):
     def __init__(
         self,
         database: DatabasePool,
diff --git a/synapse/replication/slave/storage/directory.py b/synapse/replication/slave/storage/directory.py
index 71fde0c96c..ca716df3df 100644
--- a/synapse/replication/slave/storage/directory.py
+++ b/synapse/replication/slave/storage/directory.py
@@ -14,8 +14,6 @@
 
 from synapse.storage.databases.main.directory import DirectoryWorkerStore
 
-from ._base import BaseSlavedStore
 
-
-class DirectoryStore(DirectoryWorkerStore, BaseSlavedStore):
+class DirectoryStore(DirectoryWorkerStore):
     pass
diff --git a/synapse/replication/slave/storage/events.py b/synapse/replication/slave/storage/events.py
index a72dad7464..fe47778cb1 100644
--- a/synapse/replication/slave/storage/events.py
+++ b/synapse/replication/slave/storage/events.py
@@ -29,8 +29,6 @@ from synapse.storage.databases.main.stream import StreamWorkerStore
 from synapse.storage.databases.main.user_erasure_store import UserErasureWorkerStore
 from synapse.util.caches.stream_change_cache import StreamChangeCache
 
-from ._base import BaseSlavedStore
-
 if TYPE_CHECKING:
     from synapse.server import HomeServer
 
@@ -56,7 +54,6 @@ class SlavedEventStore(
     EventsWorkerStore,
     UserErasureWorkerStore,
     RelationsWorkerStore,
-    BaseSlavedStore,
 ):
     def __init__(
         self,
diff --git a/synapse/replication/slave/storage/filtering.py b/synapse/replication/slave/storage/filtering.py
index 4d185e2b56..c52679cd60 100644
--- a/synapse/replication/slave/storage/filtering.py
+++ b/synapse/replication/slave/storage/filtering.py
@@ -14,16 +14,15 @@
 
 from typing import TYPE_CHECKING
 
+from synapse.storage._base import SQLBaseStore
 from synapse.storage.database import DatabasePool, LoggingDatabaseConnection
 from synapse.storage.databases.main.filtering import FilteringStore
 
-from ._base import BaseSlavedStore
-
 if TYPE_CHECKING:
     from synapse.server import HomeServer
 
 
-class SlavedFilteringStore(BaseSlavedStore):
+class SlavedFilteringStore(SQLBaseStore):
     def __init__(
         self,
         database: DatabasePool,
diff --git a/synapse/replication/slave/storage/profile.py b/synapse/replication/slave/storage/profile.py
index 99f4a22642..a774a2ff48 100644
--- a/synapse/replication/slave/storage/profile.py
+++ b/synapse/replication/slave/storage/profile.py
@@ -12,9 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from synapse.replication.slave.storage._base import BaseSlavedStore
 from synapse.storage.databases.main.profile import ProfileWorkerStore
 
 
-class SlavedProfileStore(ProfileWorkerStore, BaseSlavedStore):
+class SlavedProfileStore(ProfileWorkerStore):
     pass
diff --git a/synapse/replication/slave/storage/pushers.py b/synapse/replication/slave/storage/pushers.py
index de642bba71..44ed20e424 100644
--- a/synapse/replication/slave/storage/pushers.py
+++ b/synapse/replication/slave/storage/pushers.py
@@ -18,14 +18,13 @@ from synapse.replication.tcp.streams import PushersStream
 from synapse.storage.database import DatabasePool, LoggingDatabaseConnection
 from synapse.storage.databases.main.pusher import PusherWorkerStore
 
-from ._base import BaseSlavedStore
 from ._slaved_id_tracker import SlavedIdTracker
 
 if TYPE_CHECKING:
     from synapse.server import HomeServer
 
 
-class SlavedPusherStore(PusherWorkerStore, BaseSlavedStore):
+class SlavedPusherStore(PusherWorkerStore):
     def __init__(
         self,
         database: DatabasePool,
diff --git a/synapse/replication/slave/storage/receipts.py b/synapse/replication/slave/storage/receipts.py
index 3826b87dec..407862a2b2 100644
--- a/synapse/replication/slave/storage/receipts.py
+++ b/synapse/replication/slave/storage/receipts.py
@@ -15,8 +15,6 @@
 
 from synapse.storage.databases.main.receipts import ReceiptsWorkerStore
 
-from ._base import BaseSlavedStore
 
-
-class SlavedReceiptsStore(ReceiptsWorkerStore, BaseSlavedStore):
+class SlavedReceiptsStore(ReceiptsWorkerStore):
     pass
diff --git a/synapse/replication/slave/storage/registration.py b/synapse/replication/slave/storage/registration.py
index 5dae35a960..52c593e59d 100644
--- a/synapse/replication/slave/storage/registration.py
+++ b/synapse/replication/slave/storage/registration.py
@@ -14,8 +14,6 @@
 
 from synapse.storage.databases.main.registration import RegistrationWorkerStore
 
-from ._base import BaseSlavedStore
 
-
-class SlavedRegistrationStore(RegistrationWorkerStore, BaseSlavedStore):
+class SlavedRegistrationStore(RegistrationWorkerStore):
     pass