forked from MirrorHub/synapse
Batch up various DB requests for event -> state
This commit is contained in:
Erik Johnston
parent
0211890134
commit
9eb5b23d3a
1 changed files with 142 additions and 77 deletions
|
|
@ -13,11 +13,10 @@
|
|||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
from ._base import SQLBaseStore, cached, cachedInlineCallbacks
|
||||
from ._base import SQLBaseStore, cached, cachedInlineCallbacks, cachedList
|
||||
|
||||
from twisted.internet import defer
|
||||
|
||||
from synapse.util import unwrapFirstError
|
||||
from synapse.util.stringutils import random_string
|
||||
|
||||
import logging
|
||||
|
|
@ -50,32 +49,20 @@ class StateStore(SQLBaseStore):
|
|||
|
||||
The return value is a dict mapping group names to lists of events.
|
||||
"""
|
||||
if not event_ids:
|
||||
defer.returnValue({})
|
||||
|
||||
event_and_groups = yield defer.gatherResults(
|
||||
[
|
||||
self._get_state_group_for_event(
|
||||
room_id, event_id,
|
||||
).addCallback(lambda group, event_id: (event_id, group), event_id)
|
||||
for event_id in event_ids
|
||||
],
|
||||
consumeErrors=True,
|
||||
).addErrback(unwrapFirstError)
|
||||
event_to_groups = yield self._get_state_group_for_events(
|
||||
room_id, event_ids,
|
||||
)
|
||||
|
||||
groups = set(group for _, group in event_and_groups if group)
|
||||
groups = set(event_to_groups.values())
|
||||
|
||||
group_to_state = yield defer.gatherResults(
|
||||
[
|
||||
self._get_state_for_group(
|
||||
group,
|
||||
).addCallback(lambda state_dict, group: (group, state_dict), group)
|
||||
for group in groups
|
||||
],
|
||||
consumeErrors=True,
|
||||
).addErrback(unwrapFirstError)
|
||||
group_to_state = yield self._get_state_for_groups(groups)
|
||||
|
||||
defer.returnValue({
|
||||
group: state_map.values()
|
||||
for group, state_map in group_to_state
|
||||
for group, state_map in group_to_state.items()
|
||||
})
|
||||
|
||||
@cached(num_args=1)
|
||||
|
|
@ -212,17 +199,48 @@ class StateStore(SQLBaseStore):
|
|||
|
||||
txn.execute(sql, args)
|
||||
|
||||
return group, [
|
||||
r[0]
|
||||
for r in txn.fetchall()
|
||||
]
|
||||
return [r[0] for r in txn.fetchall()]
|
||||
|
||||
return self.runInteraction(
|
||||
"_get_state_groups_from_group",
|
||||
f,
|
||||
)
|
||||
|
||||
@cached(num_args=3, lru=True, max_entries=20000)
|
||||
def _get_state_groups_from_groups(self, groups_and_types):
|
||||
def f(txn):
|
||||
results = {}
|
||||
for group, types in groups_and_types:
|
||||
if types is not None:
|
||||
where_clause = "AND (%s)" % (
|
||||
" OR ".join(["(type = ? AND state_key = ?)"] * len(types)),
|
||||
)
|
||||
else:
|
||||
where_clause = ""
|
||||
|
||||
sql = (
|
||||
"SELECT event_id FROM state_groups_state WHERE"
|
||||
" state_group = ? %s"
|
||||
) % (where_clause,)
|
||||
|
||||
args = [group]
|
||||
if types is not None:
|
||||
args.extend([i for typ in types for i in typ])
|
||||
|
||||
txn.execute(sql, args)
|
||||
|
||||
results[group] = [
|
||||
r[0]
|
||||
for r in txn.fetchall()
|
||||
]
|
||||
|
||||
return results
|
||||
|
||||
return self.runInteraction(
|
||||
"_get_state_groups_from_groups",
|
||||
f,
|
||||
)
|
||||
|
||||
@cached(num_args=3, lru=True, max_entries=10000)
|
||||
def _get_state_for_event_id(self, room_id, event_id, types):
|
||||
def f(txn):
|
||||
type_and_state_sql = " OR ".join([
|
||||
|
|
@ -274,33 +292,19 @@ class StateStore(SQLBaseStore):
|
|||
deferred: A list of dicts corresponding to the event_ids given.
|
||||
The dicts are mappings from (type, state_key) -> state_events
|
||||
"""
|
||||
event_and_groups = yield defer.gatherResults(
|
||||
[
|
||||
self._get_state_group_for_event(
|
||||
room_id, event_id,
|
||||
).addCallback(lambda group, event_id: (event_id, group), event_id)
|
||||
for event_id in event_ids
|
||||
],
|
||||
consumeErrors=True,
|
||||
).addErrback(unwrapFirstError)
|
||||
event_to_groups = yield self._get_state_group_for_events(
|
||||
room_id, event_ids,
|
||||
)
|
||||
|
||||
groups = set(group for _, group in event_and_groups)
|
||||
groups = set(event_to_groups.values())
|
||||
|
||||
res = yield defer.gatherResults(
|
||||
[
|
||||
self._get_state_for_group(
|
||||
group, types
|
||||
).addCallback(lambda state_dict, group: (group, state_dict), group)
|
||||
for group in groups
|
||||
],
|
||||
consumeErrors=True,
|
||||
).addErrback(unwrapFirstError)
|
||||
|
||||
group_to_state = dict(res)
|
||||
group_to_state = yield self._get_state_for_groups(
|
||||
groups, types
|
||||
)
|
||||
|
||||
event_to_state = {
|
||||
event_id: group_to_state[group]
|
||||
for event_id, group in event_and_groups
|
||||
for event_id, group in event_to_groups.items()
|
||||
}
|
||||
|
||||
defer.returnValue([
|
||||
|
|
@ -320,8 +324,29 @@ class StateStore(SQLBaseStore):
|
|||
desc="_get_state_group_for_event",
|
||||
)
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def _get_state_for_group(self, group, types=None):
|
||||
@cachedList(cache=_get_state_group_for_event.cache, list_name="event_ids", num_args=2)
|
||||
def _get_state_group_for_events(self, room_id, event_ids):
|
||||
def f(txn):
|
||||
results = {}
|
||||
for event_id in event_ids:
|
||||
results[event_id] = self._simple_select_one_onecol_txn(
|
||||
txn,
|
||||
table="event_to_state_groups",
|
||||
keyvalues={
|
||||
"event_id": event_id,
|
||||
},
|
||||
retcol="state_group",
|
||||
allow_none=True,
|
||||
)
|
||||
|
||||
return results
|
||||
|
||||
return self.runInteraction(
|
||||
"_get_state_group_for_events",
|
||||
f,
|
||||
)
|
||||
|
||||
def _get_state_for_group_from_cache(self, group, types=None):
|
||||
is_all, state_dict = self._state_group_cache.get(group)
|
||||
|
||||
type_to_key = {}
|
||||
|
|
@ -339,7 +364,7 @@ class StateStore(SQLBaseStore):
|
|||
missing_types.add((typ, state_key))
|
||||
|
||||
if is_all and types is None:
|
||||
defer.returnValue(state_dict)
|
||||
return state_dict, missing_types
|
||||
|
||||
if is_all or (types is not None and not missing_types):
|
||||
sentinel = object()
|
||||
|
|
@ -354,41 +379,81 @@ class StateStore(SQLBaseStore):
|
|||
return True
|
||||
return False
|
||||
|
||||
defer.returnValue({
|
||||
return {
|
||||
k: v
|
||||
for k, v in state_dict.items()
|
||||
if v and include(k[0], k[1])
|
||||
})
|
||||
}, missing_types
|
||||
|
||||
return {}, missing_types
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def _get_state_for_groups(self, groups, types=None):
|
||||
results = {}
|
||||
missing_groups_and_types = []
|
||||
for group in groups:
|
||||
state_dict, missing_types = self._get_state_for_group_from_cache(
|
||||
group, types
|
||||
)
|
||||
|
||||
if types is not None and not missing_types:
|
||||
results[group] = {
|
||||
key: value
|
||||
for key, value in state_dict.items()
|
||||
if value
|
||||
}
|
||||
else:
|
||||
missing_groups_and_types.append((
|
||||
group,
|
||||
missing_types if types else None
|
||||
))
|
||||
|
||||
if not missing_groups_and_types:
|
||||
defer.returnValue(results)
|
||||
|
||||
# Okay, so we have some missing_types, lets fetch them.
|
||||
cache_seq_num = self._state_group_cache.sequence
|
||||
_, state_ids = yield self._get_state_groups_from_group(
|
||||
group,
|
||||
frozenset(missing_types) if types else None
|
||||
|
||||
group_state_dict = yield self._get_state_groups_from_groups(
|
||||
missing_groups_and_types
|
||||
)
|
||||
state_events = yield self._get_events(state_ids, get_prev_content=False)
|
||||
state_dict = {
|
||||
key: None
|
||||
for key in missing_types
|
||||
}
|
||||
state_dict.update({
|
||||
(e.type, e.state_key): e
|
||||
|
||||
state_events = yield self._get_events(
|
||||
[e_id for l in group_state_dict.values() for e_id in l],
|
||||
get_prev_content=False
|
||||
)
|
||||
|
||||
state_events = {
|
||||
e.event_id: e
|
||||
for e in state_events
|
||||
})
|
||||
}
|
||||
|
||||
# Update the cache
|
||||
self._state_group_cache.update(
|
||||
cache_seq_num,
|
||||
key=group,
|
||||
value=state_dict,
|
||||
full=(types is None),
|
||||
)
|
||||
for group, state_ids in group_state_dict.items():
|
||||
state_dict = {
|
||||
key: None
|
||||
for key in missing_types
|
||||
}
|
||||
evs = [state_events[e_id] for e_id in state_ids]
|
||||
state_dict.update({
|
||||
(e.type, e.state_key): e
|
||||
for e in evs
|
||||
})
|
||||
|
||||
defer.returnValue({
|
||||
key: value
|
||||
for key, value in state_dict.items()
|
||||
if value
|
||||
})
|
||||
# Update the cache
|
||||
self._state_group_cache.update(
|
||||
cache_seq_num,
|
||||
key=group,
|
||||
value=state_dict,
|
||||
full=(types is None),
|
||||
)
|
||||
|
||||
results[group] = {
|
||||
key: value
|
||||
for key, value in state_dict.items()
|
||||
if value
|
||||
}
|
||||
|
||||
defer.returnValue(results)
|
||||
|
||||
|
||||
def _make_group_id(clock):
|
||||
|
|
|
|||
Loading…
Reference in a new issue