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Stop using 'device_max_stream_id' (#7882)
It serves no purpose and updating everytime we write to the device inbox stream means all such transactions will conflict, causing lots of transaction failures and retries.
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changelog.d/7882.misc
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1
changelog.d/7882.misc
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@ -0,0 +1 @@
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Stop using `device_max_stream_id` table and just use `device_inbox.stream_id`.
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@ -26,7 +26,7 @@ class SlavedDeviceInboxStore(DeviceInboxWorkerStore, BaseSlavedStore):
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def __init__(self, database: Database, db_conn, hs):
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def __init__(self, database: Database, db_conn, hs):
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super(SlavedDeviceInboxStore, self).__init__(database, db_conn, hs)
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super(SlavedDeviceInboxStore, self).__init__(database, db_conn, hs)
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self._device_inbox_id_gen = SlavedIdTracker(
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self._device_inbox_id_gen = SlavedIdTracker(
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db_conn, "device_max_stream_id", "stream_id"
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db_conn, "device_inbox", "stream_id"
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)
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)
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self._device_inbox_stream_cache = StreamChangeCache(
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self._device_inbox_stream_cache = StreamChangeCache(
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"DeviceInboxStreamChangeCache",
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"DeviceInboxStreamChangeCache",
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@ -128,7 +128,7 @@ class DataStore(
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db_conn, "presence_stream", "stream_id"
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db_conn, "presence_stream", "stream_id"
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)
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)
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self._device_inbox_id_gen = StreamIdGenerator(
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self._device_inbox_id_gen = StreamIdGenerator(
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db_conn, "device_max_stream_id", "stream_id"
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db_conn, "device_inbox", "stream_id"
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)
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)
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self._public_room_id_gen = StreamIdGenerator(
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self._public_room_id_gen = StreamIdGenerator(
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db_conn, "public_room_list_stream", "stream_id"
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db_conn, "public_room_list_stream", "stream_id"
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@ -424,9 +424,6 @@ class DeviceInboxStore(DeviceInboxWorkerStore, DeviceInboxBackgroundUpdateStore)
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def _add_messages_to_local_device_inbox_txn(
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def _add_messages_to_local_device_inbox_txn(
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self, txn, stream_id, messages_by_user_then_device
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self, txn, stream_id, messages_by_user_then_device
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):
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):
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sql = "UPDATE device_max_stream_id" " SET stream_id = ?" " WHERE stream_id < ?"
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txn.execute(sql, (stream_id, stream_id))
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local_by_user_then_device = {}
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local_by_user_then_device = {}
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for user_id, messages_by_device in messages_by_user_then_device.items():
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for user_id, messages_by_device in messages_by_user_then_device.items():
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messages_json_for_user = {}
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messages_json_for_user = {}
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