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Merge pull request #2896 from matrix-org/erikj/split_receipts_store

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Split ReceiptsStore
This commit is contained in:
Erik Johnston 2018-02-20 18:08:20 +00:00 committed by GitHub
commit a2b25de68d
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3 changed files with 84 additions and 74 deletions
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34
synapse/replication/slave/storage/receipts.py
View File

@ -1,5 +1,6 @@
# -*- coding: utf-8 -*-
# Copyright 2016 OpenMarket Ltd
# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@ -16,9 +17,7 @@
from ._base import BaseSlavedStore
from ._slaved_id_tracker import SlavedIdTracker
from synapse.storage import DataStore
from synapse.storage.receipts import ReceiptsStore
from synapse.util.caches.stream_change_cache import StreamChangeCache
from synapse.storage.receipts import ReceiptsWorkerStore
# So, um, we want to borrow a load of functions intended for reading from
# a DataStore, but we don't want to take functions that either write to the
@ -29,36 +28,19 @@ from synapse.util.caches.stream_change_cache import StreamChangeCache
# the method descriptor on the DataStore and chuck them into our class.
class SlavedReceiptsStore(BaseSlavedStore):
class SlavedReceiptsStore(ReceiptsWorkerStore, BaseSlavedStore):
def __init__(self, db_conn, hs):
super(SlavedReceiptsStore, self).__init__(db_conn, hs)
# We instantiate this first as the ReceiptsWorkerStore constructor
# needs to be able to call get_max_receipt_stream_id
self._receipts_id_gen = SlavedIdTracker(
db_conn, "receipts_linearized", "stream_id"
)
self._receipts_stream_cache = StreamChangeCache(
"ReceiptsRoomChangeCache", self._receipts_id_gen.get_current_token()
)
super(SlavedReceiptsStore, self).__init__(db_conn, hs)
get_receipts_for_user = ReceiptsStore.__dict__["get_receipts_for_user"]
get_linearized_receipts_for_room = (
ReceiptsStore.__dict__["get_linearized_receipts_for_room"]
)
_get_linearized_receipts_for_rooms = (
ReceiptsStore.__dict__["_get_linearized_receipts_for_rooms"]
)
get_last_receipt_event_id_for_user = (
ReceiptsStore.__dict__["get_last_receipt_event_id_for_user"]
)
get_max_receipt_stream_id = DataStore.get_max_receipt_stream_id.__func__
get_all_updated_receipts = DataStore.get_all_updated_receipts.__func__
get_linearized_receipts_for_rooms = (
DataStore.get_linearized_receipts_for_rooms.__func__
)
def get_max_receipt_stream_id(self):
return self._receipts_id_gen.get_current_token()
def stream_positions(self):
result = super(SlavedReceiptsStore, self).stream_positions()

3
synapse/storage/__init__.py
View File

@ -104,9 +104,6 @@ class DataStore(RoomMemberStore, RoomStore,
db_conn, "events", "stream_ordering", step=-1,
extra_tables=[("ex_outlier_stream", "event_stream_ordering")]
)
self._receipts_id_gen = StreamIdGenerator(
db_conn, "receipts_linearized", "stream_id"
)
self._account_data_id_gen = StreamIdGenerator(
db_conn, "account_data_max_stream_id", "stream_id"
)

121
synapse/storage/receipts.py
View File

@ -1,5 +1,6 @@
# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@ -14,11 +15,13 @@
# limitations under the License.
from ._base import SQLBaseStore
from .util.id_generators import StreamIdGenerator
from synapse.util.caches.descriptors import cachedInlineCallbacks, cachedList, cached
from synapse.util.caches.stream_change_cache import StreamChangeCache
from twisted.internet import defer
import abc
import logging
import ujson as json
@ -26,39 +29,36 @@ import ujson as json
logger = logging.getLogger(__name__)
class ReceiptsStore(SQLBaseStore):
class ReceiptsWorkerStore(SQLBaseStore):
"""This is an abstract base class where subclasses must implement
`get_max_receipt_stream_id` which can be called in the initializer.
"""
# This ABCMeta metaclass ensures that we cannot be instantiated without
# the abstract methods being implemented.
__metaclass__ = abc.ABCMeta
def __init__(self, db_conn, hs):
super(ReceiptsStore, self).__init__(db_conn, hs)
super(ReceiptsWorkerStore, self).__init__(db_conn, hs)
self._receipts_stream_cache = StreamChangeCache(
"ReceiptsRoomChangeCache", self._receipts_id_gen.get_current_token()
"ReceiptsRoomChangeCache", self.get_max_receipt_stream_id()
)
@abc.abstractmethod
def get_max_receipt_stream_id(self):
"""Get the current max stream ID for receipts stream
Returns:
int
"""
raise NotImplementedError()
@cachedInlineCallbacks()
def get_users_with_read_receipts_in_room(self, room_id):
receipts = yield self.get_receipts_for_room(room_id, "m.read")
defer.returnValue(set(r['user_id'] for r in receipts))
def _invalidate_get_users_with_receipts_in_room(self, room_id, receipt_type,
user_id):
if receipt_type != "m.read":
return
# Returns an ObservableDeferred
res = self.get_users_with_read_receipts_in_room.cache.get(
room_id, None, update_metrics=False,
)
if res:
if isinstance(res, defer.Deferred) and res.called:
res = res.result
if user_id in res:
# We'd only be adding to the set, so no point invalidating if the
# user is already there
return
self.get_users_with_read_receipts_in_room.invalidate((room_id,))
@cached(num_args=2)
def get_receipts_for_room(self, room_id, receipt_type):
return self._simple_select_list(
@ -270,9 +270,62 @@ class ReceiptsStore(SQLBaseStore):
}
defer.returnValue(results)
def get_all_updated_receipts(self, last_id, current_id, limit=None):
if last_id == current_id:
return defer.succeed([])
def get_all_updated_receipts_txn(txn):
sql = (
"SELECT stream_id, room_id, receipt_type, user_id, event_id, data"
" FROM receipts_linearized"
" WHERE ? < stream_id AND stream_id <= ?"
" ORDER BY stream_id ASC"
)
args = [last_id, current_id]
if limit is not None:
sql += " LIMIT ?"
args.append(limit)
txn.execute(sql, args)
return txn.fetchall()
return self.runInteraction(
"get_all_updated_receipts", get_all_updated_receipts_txn
)
class ReceiptsStore(ReceiptsWorkerStore):
def __init__(self, db_conn, hs):
# We instantiate this first as the ReceiptsWorkerStore constructor
# needs to be able to call get_max_receipt_stream_id
self._receipts_id_gen = StreamIdGenerator(
db_conn, "receipts_linearized", "stream_id"
)
super(ReceiptsStore, self).__init__(db_conn, hs)
def get_max_receipt_stream_id(self):
return self._receipts_id_gen.get_current_token()
def _invalidate_get_users_with_receipts_in_room(self, room_id, receipt_type,
user_id):
if receipt_type != "m.read":
return
# Returns an ObservableDeferred
res = self.get_users_with_read_receipts_in_room.cache.get(
room_id, None, update_metrics=False,
)
if res:
if isinstance(res, defer.Deferred) and res.called:
res = res.result
if user_id in res:
# We'd only be adding to the set, so no point invalidating if the
# user is already there
return
self.get_users_with_read_receipts_in_room.invalidate((room_id,))
def insert_linearized_receipt_txn(self, txn, room_id, receipt_type,
user_id, event_id, data, stream_id):
txn.call_after(
@ -457,25 +510,3 @@ class ReceiptsStore(SQLBaseStore):
"data": json.dumps(data),
}
)
def get_all_updated_receipts(self, last_id, current_id, limit=None):
if last_id == current_id:
return defer.succeed([])
def get_all_updated_receipts_txn(txn):
sql = (
"SELECT stream_id, room_id, receipt_type, user_id, event_id, data"
" FROM receipts_linearized"
" WHERE ? < stream_id AND stream_id <= ?"
" ORDER BY stream_id ASC"
)
args = [last_id, current_id]
if limit is not None:
sql += " LIMIT ?"
args.append(limit)
txn.execute(sql, args)
return txn.fetchall()
return self.runInteraction(
"get_all_updated_receipts", get_all_updated_receipts_txn
)