From ec8b217722be15fe110be77c7c7909a7758202cb Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Thu, 28 Jul 2016 17:35:53 +0100
Subject: [PATCH] Add destination retry to slave store

---
 synapse/app/federation_reader.py              |  2 ++
 .../replication/slave/storage/transactions.py | 30 +++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 synapse/replication/slave/storage/transactions.py

diff --git a/synapse/app/federation_reader.py b/synapse/app/federation_reader.py
index 2e5ba09014..58d425f9ac 100644
--- a/synapse/app/federation_reader.py
+++ b/synapse/app/federation_reader.py
@@ -25,6 +25,7 @@ from synapse.replication.slave.storage._base import BaseSlavedStore
 from synapse.replication.slave.storage.events import SlavedEventStore
 from synapse.replication.slave.storage.keys import SlavedKeyStore
 from synapse.replication.slave.storage.room import RoomStore
+from synapse.replication.slave.storage.transactions import TransactionStore
 from synapse.replication.slave.storage.directory import DirectoryStore
 from synapse.server import HomeServer
 from synapse.storage.engines import create_engine
@@ -56,6 +57,7 @@ class FederationReaderSlavedStore(
     SlavedKeyStore,
     RoomStore,
     DirectoryStore,
+    TransactionStore,
     BaseSlavedStore,
 ):
     pass
diff --git a/synapse/replication/slave/storage/transactions.py b/synapse/replication/slave/storage/transactions.py
new file mode 100644
index 0000000000..6f2ba98af5
--- /dev/null
+++ b/synapse/replication/slave/storage/transactions.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# Copyright 2015, 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.
+
+from twisted.internet import defer
+from ._base import BaseSlavedStore
+from synapse.storage import DataStore
+from synapse.storage.transactions import TransactionStore
+
+
+class TransactionStore(BaseSlavedStore):
+    get_destination_retry_timings = TransactionStore.__dict__[
+        "get_destination_retry_timings"
+    ].orig
+    _get_destination_retry_timings = DataStore._get_destination_retry_timings.__func__
+
+    # For now, don't record the destination rety timings
+    def set_destination_retry_timings(*args, **kwargs):
+        return defer.succeed(None)