diff options
Diffstat (limited to 'synapse/state.py')
| -rw-r--r-- | synapse/state.py | 65 |
1 files changed, 28 insertions, 37 deletions
diff --git a/synapse/state.py b/synapse/state.py index e096329721..41d32e664a 100644 --- a/synapse/state.py +++ b/synapse/state.py @@ -28,6 +28,7 @@ from collections import namedtuple import logging import hashlib +import os logger = logging.getLogger(__name__) @@ -35,8 +36,11 @@ logger = logging.getLogger(__name__) KeyStateTuple = namedtuple("KeyStateTuple", ("context", "type", "state_key")) -SIZE_OF_CACHE = 1000 -EVICTION_TIMEOUT_SECONDS = 20 +CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1)) + + +SIZE_OF_CACHE = int(1000 * CACHE_SIZE_FACTOR) +EVICTION_TIMEOUT_SECONDS = 60 * 60 class _StateCacheEntry(object): @@ -86,16 +90,8 @@ class StateHandler(object): """ event_ids = yield self.store.get_latest_event_ids_in_room(room_id) - cache = None - if self._state_cache is not None: - cache = self._state_cache.get(frozenset(event_ids), None) - - if cache: - cache.ts = self.clock.time_msec() - state = cache.state - else: - res = yield self.resolve_state_groups(room_id, event_ids) - state = res[1] + res = yield self.resolve_state_groups(room_id, event_ids) + state = res[1] if event_type: defer.returnValue(state.get((event_type, state_key))) @@ -187,20 +183,6 @@ class StateHandler(object): """ logger.debug("resolve_state_groups event_ids %s", event_ids) - if self._state_cache is not None: - cache = self._state_cache.get(frozenset(event_ids), None) - if cache and cache.state_group: - cache.ts = self.clock.time_msec() - prev_state = cache.state.get((event_type, state_key), None) - if prev_state: - prev_state = prev_state.event_id - prev_states = [prev_state] - else: - prev_states = [] - defer.returnValue( - (cache.state_group, cache.state, prev_states) - ) - state_groups = yield self.store.get_state_groups( room_id, event_ids ) @@ -210,7 +192,7 @@ class StateHandler(object): state_groups.keys() ) - group_names = set(state_groups.keys()) + group_names = frozenset(state_groups.keys()) if len(group_names) == 1: name, state_list = state_groups.items().pop() state = { @@ -224,16 +206,25 @@ class StateHandler(object): else: prev_states = [] - if self._state_cache is not None: - cache = _StateCacheEntry( - state=state, - state_group=name, - ts=self.clock.time_msec() - ) + defer.returnValue((name, state, prev_states)) + + if self._state_cache is not None: + cache = self._state_cache.get(group_names, None) + if cache and cache.state_group: + cache.ts = self.clock.time_msec() - self._state_cache[frozenset(event_ids)] = cache + event_dict = yield self.store.get_events(cache.state.values()) + state = {(e.type, e.state_key): e for e in event_dict.values()} - defer.returnValue((name, state, prev_states)) + prev_state = state.get((event_type, state_key), None) + if prev_state: + prev_state = prev_state.event_id + prev_states = [prev_state] + else: + prev_states = [] + defer.returnValue( + (cache.state_group, state, prev_states) + ) new_state, prev_states = self._resolve_events( state_groups.values(), event_type, state_key @@ -241,12 +232,12 @@ class StateHandler(object): if self._state_cache is not None: cache = _StateCacheEntry( - state=new_state, + state={key: event.event_id for key, event in new_state.items()}, state_group=None, ts=self.clock.time_msec() ) - self._state_cache[frozenset(event_ids)] = cache + self._state_cache[group_names] = cache defer.returnValue((None, new_state, prev_states)) |