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-rw-r--r--synapse/storage/schema/delta/34/received_txn_purge.py32
-rw-r--r--synapse/storage/transactions.py17
2 files changed, 45 insertions, 4 deletions
diff --git a/synapse/storage/schema/delta/34/received_txn_purge.py b/synapse/storage/schema/delta/34/received_txn_purge.py
new file mode 100644
index 0000000000..033144341c
--- /dev/null
+++ b/synapse/storage/schema/delta/34/received_txn_purge.py
@@ -0,0 +1,32 @@
+# 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.
+
+from synapse.storage.engines import PostgresEngine
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+def run_create(cur, database_engine, *args, **kwargs):
+    if isinstance(database_engine, PostgresEngine):
+        cur.execute("TRUNCATE received_transactions")
+    else:
+        cur.execute("DELETE FROM received_transactions")
+
+    cur.execute("CREATE INDEX received_transactions_ts ON received_transactions(ts)")
+
+
+def run_upgrade(cur, database_engine, *args, **kwargs):
+    pass
diff --git a/synapse/storage/transactions.py b/synapse/storage/transactions.py
index 6258ff1725..58d4de4f1d 100644
--- a/synapse/storage/transactions.py
+++ b/synapse/storage/transactions.py
@@ -62,10 +62,9 @@ class TransactionStore(SQLBaseStore):
         self.last_transaction = {}
 
         reactor.addSystemEventTrigger("before", "shutdown", self._persist_in_mem_txns)
-        hs.get_clock().looping_call(
-            self._persist_in_mem_txns,
-            1000,
-        )
+        self._clock.looping_call(self._persist_in_mem_txns, 1000)
+
+        self._clock.looping_call(self._cleanup_transactions, 30 * 60 * 1000)
 
     def get_received_txn_response(self, transaction_id, origin):
         """For an incoming transaction from a given origin, check if we have
@@ -127,6 +126,7 @@ class TransactionStore(SQLBaseStore):
                 "origin": origin,
                 "response_code": code,
                 "response_json": buffer(encode_canonical_json(response_dict)),
+                "ts": self._clock.time_msec(),
             },
             or_ignore=True,
             desc="set_received_txn_response",
@@ -383,3 +383,12 @@ class TransactionStore(SQLBaseStore):
                 yield self.runInteraction("_persist_in_mem_txns", f)
         except:
             logger.exception("Failed to persist transactions!")
+
+    def _cleanup_transactions(self):
+        now = self._clock.time_msec()
+        month_ago = now - 30 * 24 * 60 * 60 * 1000
+
+        def _cleanup_transactions_txn(txn):
+            txn.execute("DELETE FROM received_transactions WHERE ts < ?", (month_ago,))
+
+        return self.runInteraction("_persist_in_mem_txns", _cleanup_transactions_txn)