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Prefill stream change caches
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parent
ebc5f00efe
commit
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@ -45,9 +45,10 @@ from .search import SearchStore
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from .tags import TagsStore
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from .account_data import AccountDataStore
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from util.id_generators import IdGenerator, StreamIdGenerator
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from synapse.util.caches.stream_change_cache import StreamChangeCache
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import logging
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@ -117,8 +118,54 @@ class DataStore(RoomMemberStore, RoomStore,
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self._push_rule_id_gen = IdGenerator("push_rules", "id", self)
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self._push_rules_enable_id_gen = IdGenerator("push_rules_enable", "id", self)
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events_max = self._stream_id_gen.get_max_token(None)
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event_cache_prefill = self._get_cache_dict(
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db_conn, "events",
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entity_column="room_id",
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stream_column="stream_ordering",
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max_value=events_max,
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)
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self._events_stream_cache = StreamChangeCache(
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"EventsRoomStreamChangeCache", events_max,
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prefilled_cache=event_cache_prefill,
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)
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account_max = self._account_data_id_gen.get_max_token(None)
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account_cache_prefill = self._get_cache_dict(
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db_conn, "account_data",
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entity_column="user_id",
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stream_column="stream_id",
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max_value=account_max,
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)
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self._account_data_stream_cache = StreamChangeCache(
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"AccountDataAndTagsChangeCache", account_max,
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prefilled_cache=account_cache_prefill,
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)
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super(DataStore, self).__init__(hs)
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def _get_cache_dict(self, db_conn, table, entity_column, stream_column, max_value):
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sql = (
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"SELECT %(entity)s, MAX(%(stream)s) FROM %(table)s"
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" WHERE %(stream)s > max(? - 100000, 0)"
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" GROUP BY %(entity)s"
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" ORDER BY MAX(%(stream)s) DESC"
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" LIMIT 10000"
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) % {
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"table": table,
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"entity": entity_column,
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"stream": stream_column,
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}
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txn = db_conn.cursor()
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txn.execute(sql, (int(max_value),))
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rows = txn.fetchall()
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return {
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row[0]: row[1]
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for row in rows
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}
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@defer.inlineCallbacks
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def insert_client_ip(self, user, access_token, ip, user_agent):
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now = int(self._clock.time_msec())
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@ -14,7 +14,6 @@
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# limitations under the License.
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from ._base import SQLBaseStore
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from synapse.util.caches.stream_change_cache import StreamChangeCache
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from twisted.internet import defer
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import ujson as json
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@ -24,14 +23,6 @@ logger = logging.getLogger(__name__)
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class AccountDataStore(SQLBaseStore):
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def __init__(self, hs):
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super(AccountDataStore, self).__init__(hs)
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self._account_data_stream_cache = StreamChangeCache(
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"AccountDataAndTagsChangeCache",
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self._account_data_id_gen.get_max_token(None),
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max_size=10000,
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)
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def get_account_data_for_user(self, user_id):
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"""Get all the client account_data for a user.
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@ -37,7 +37,6 @@ from twisted.internet import defer
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from ._base import SQLBaseStore
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from synapse.util.caches.descriptors import cachedInlineCallbacks
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from synapse.util.caches.stream_change_cache import StreamChangeCache
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from synapse.api.constants import EventTypes
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from synapse.types import RoomStreamToken
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from synapse.util.logutils import log_function
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@ -78,13 +77,6 @@ def upper_bound(token):
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class StreamStore(SQLBaseStore):
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def __init__(self, hs):
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super(StreamStore, self).__init__(hs)
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self._events_stream_cache = StreamChangeCache(
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"EventsRoomStreamChangeCache", self._stream_id_gen.get_max_token(None)
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)
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@defer.inlineCallbacks
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def get_appservice_room_stream(self, service, from_key, to_key, limit=0):
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# NB this lives here instead of appservice.py so we can reuse the
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@ -32,7 +32,7 @@ class StreamChangeCache(object):
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entities that may have changed since that position. If position key is too
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old then the cache will simply return all given entities.
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"""
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def __init__(self, name, current_stream_pos, max_size=10000):
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def __init__(self, name, current_stream_pos, max_size=10000, prefilled_cache={}):
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self._max_size = max_size
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self._entity_to_key = {}
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self._cache = sorteddict()
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@ -40,6 +40,9 @@ class StreamChangeCache(object):
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self.name = name
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caches_by_name[self.name] = self._cache
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for entity, stream_pos in prefilled_cache.items():
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self.entity_has_changed(entity, stream_pos)
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def has_entity_changed(self, entity, stream_pos):
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"""Returns True if the entity may have been updated since stream_pos
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"""
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