From 6a6cbfcf1e12c0f34a280764f892eaa23e720d57 Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Fri, 9 Sep 2016 11:48:23 +0100 Subject: [PATCH 1/2] Track the max_stream_device_id in a separate table, since we delete from the inbox table --- .../replication/slave/storage/deviceinbox.py | 2 +- synapse/storage/__init__.py | 2 +- synapse/storage/deviceinbox.py | 17 ++++++++++++++-- .../schema/delta/35/device_stream_id.sql | 20 +++++++++++++++++++ 4 files changed, 37 insertions(+), 4 deletions(-) create mode 100644 synapse/storage/schema/delta/35/device_stream_id.sql diff --git a/synapse/replication/slave/storage/deviceinbox.py b/synapse/replication/slave/storage/deviceinbox.py index 251078ba5..3bfd5e821 100644 --- a/synapse/replication/slave/storage/deviceinbox.py +++ b/synapse/replication/slave/storage/deviceinbox.py @@ -23,7 +23,7 @@ class SlavedDeviceInboxStore(BaseSlavedStore): def __init__(self, db_conn, hs): super(SlavedDeviceInboxStore, self).__init__(db_conn, hs) self._device_inbox_id_gen = SlavedIdTracker( - db_conn, "device_inbox", "stream_id", + db_conn, "device_max_stream_id", "stream_id", ) self._device_inbox_stream_cache = StreamChangeCache( "DeviceInboxStreamChangeCache", diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py index 828e5ca60..a61e83d5d 100644 --- a/synapse/storage/__init__.py +++ b/synapse/storage/__init__.py @@ -111,7 +111,7 @@ class DataStore(RoomMemberStore, RoomStore, db_conn, "presence_stream", "stream_id" ) self._device_inbox_id_gen = StreamIdGenerator( - db_conn, "device_inbox", "stream_id" + db_conn, "device_max_stream_id", "stream_id" ) self._transaction_id_gen = IdGenerator(db_conn, "sent_transactions", "id") diff --git a/synapse/storage/deviceinbox.py b/synapse/storage/deviceinbox.py index 658fbef27..b729b7106 100644 --- a/synapse/storage/deviceinbox.py +++ b/synapse/storage/deviceinbox.py @@ -130,6 +130,13 @@ class DeviceInboxStore(SQLBaseStore): def _add_messages_to_local_device_inbox_txn(self, txn, stream_id, messages_by_user_then_device): + sql = ( + "UPDATE device_max_stream_id" + " SET stream_id = ?" + " WHERE stream_id < ?" + ) + txn.execute(sql, (stream_id, stream_id)) + local_by_user_then_device = {} for user_id, messages_by_device in messages_by_user_then_device.items(): messages_json_for_user = {} @@ -148,6 +155,8 @@ class DeviceInboxStore(SQLBaseStore): device = row[0] messages_json_for_user[device] = message_json else: + if not devices: + continue sql = ( "SELECT device_id FROM devices" " WHERE user_id = ? AND device_id IN (" @@ -164,7 +173,11 @@ class DeviceInboxStore(SQLBaseStore): message_json = ujson.dumps(messages_by_device[device]) messages_json_for_user[device] = message_json - local_by_user_then_device[user_id] = messages_json_for_user + if messages_json_for_user: + local_by_user_then_device[user_id] = messages_json_for_user + + if not local_by_user_then_device: + return sql = ( "INSERT INTO device_inbox" @@ -301,7 +314,7 @@ class DeviceInboxStore(SQLBaseStore): has_changed = self._device_federation_outbox_stream_cache.has_entity_changed( destination, last_stream_id ) - if not has_changed: + if not has_changed or last_stream_id == current_stream_id: return defer.succeed(([], current_stream_id)) def get_new_messages_for_remote_destination_txn(txn): diff --git a/synapse/storage/schema/delta/35/device_stream_id.sql b/synapse/storage/schema/delta/35/device_stream_id.sql new file mode 100644 index 000000000..1ce6336f3 --- /dev/null +++ b/synapse/storage/schema/delta/35/device_stream_id.sql @@ -0,0 +1,20 @@ +/* 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. + */ + +CREATE TABLE device_max_stream_id ( + stream_id BIGINT NOT NULL +); + +INSERT INTO device_max_stream_id (stream_id) VALUES (0); From 647c7245733a72b9b71decb2b321869a942dbb88 Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Fri, 9 Sep 2016 11:52:44 +0100 Subject: [PATCH 2/2] Use the previous MAX value if any to set the stream_id --- synapse/storage/schema/delta/35/device_stream_id.sql | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/synapse/storage/schema/delta/35/device_stream_id.sql b/synapse/storage/schema/delta/35/device_stream_id.sql index 1ce6336f3..7ab7d942e 100644 --- a/synapse/storage/schema/delta/35/device_stream_id.sql +++ b/synapse/storage/schema/delta/35/device_stream_id.sql @@ -17,4 +17,5 @@ CREATE TABLE device_max_stream_id ( stream_id BIGINT NOT NULL ); -INSERT INTO device_max_stream_id (stream_id) VALUES (0); +INSERT INTO device_max_stream_id (stream_id) + SELECT COALESCE(MAX(stream_id), 0) FROM device_inbox;