Merge pull request #835 from matrix-org/erikj/get_event_txn
Remove event fetching from DB threads
This commit is contained in:
Erik Johnston
commit
f6be734be9
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@ -131,15 +131,10 @@ class SlavedEventStore(BaseSlavedStore):
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_get_events_from_cache = DataStore._get_events_from_cache.__func__
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_invalidate_get_event_cache = DataStore._invalidate_get_event_cache.__func__
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_parse_events_txn = DataStore._parse_events_txn.__func__
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_get_events_txn = DataStore._get_events_txn.__func__
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_get_event_txn = DataStore._get_event_txn.__func__
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_enqueue_events = DataStore._enqueue_events.__func__
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_do_fetch = DataStore._do_fetch.__func__
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_fetch_events_txn = DataStore._fetch_events_txn.__func__
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_fetch_event_rows = DataStore._fetch_event_rows.__func__
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_get_event_from_row = DataStore._get_event_from_row.__func__
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_get_event_from_row_txn = DataStore._get_event_from_row_txn.__func__
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_get_rooms_for_user_where_membership_is_txn = (
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DataStore._get_rooms_for_user_where_membership_is_txn.__func__
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)
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@ -298,6 +298,7 @@ class ApplicationServiceTransactionStore(SQLBaseStore):
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dict(txn_id=txn_id, as_id=service.id)
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)
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@defer.inlineCallbacks
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def get_oldest_unsent_txn(self, service):
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"""Get the oldest transaction which has not been sent for this
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service.
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@ -308,12 +309,23 @@ class ApplicationServiceTransactionStore(SQLBaseStore):
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A Deferred which resolves to an AppServiceTransaction or
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None.
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"""
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return self.runInteraction(
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entry = yield self.runInteraction(
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"get_oldest_unsent_appservice_txn",
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self._get_oldest_unsent_txn,
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service
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)
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if not entry:
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defer.returnValue(None)
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event_ids = json.loads(entry["event_ids"])
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events = yield self.get_events(event_ids)
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defer.returnValue(AppServiceTransaction(
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service=service, id=entry["txn_id"], events=events
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))
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def _get_oldest_unsent_txn(self, txn, service):
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# Monotonically increasing txn ids, so just select the smallest
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# one in the txns table (we delete them when they are sent)
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@ -328,12 +340,7 @@ class ApplicationServiceTransactionStore(SQLBaseStore):
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entry = rows[0]
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event_ids = json.loads(entry["event_ids"])
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events = self._get_events_txn(txn, event_ids)
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return AppServiceTransaction(
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service=service, id=entry["txn_id"], events=events
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)
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return entry
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def _get_last_txn(self, txn, service_id):
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txn.execute(
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@ -762,41 +762,6 @@ class EventsStore(SQLBaseStore):
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if e_id in event_map and event_map[e_id]
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])
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def _get_events_txn(self, txn, event_ids, check_redacted=True,
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get_prev_content=False, allow_rejected=False):
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if not event_ids:
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return []
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event_map = self._get_events_from_cache(
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event_ids,
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check_redacted=check_redacted,
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get_prev_content=get_prev_content,
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allow_rejected=allow_rejected,
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)
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missing_events_ids = [e for e in event_ids if e not in event_map]
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if not missing_events_ids:
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return [
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event_map[e_id] for e_id in event_ids
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if e_id in event_map and event_map[e_id]
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]
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missing_events = self._fetch_events_txn(
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txn,
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missing_events_ids,
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check_redacted=check_redacted,
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get_prev_content=get_prev_content,
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allow_rejected=allow_rejected,
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)
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event_map.update(missing_events)
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return [
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event_map[e_id] for e_id in event_ids
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if e_id in event_map and event_map[e_id]
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]
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def _invalidate_get_event_cache(self, event_id):
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for check_redacted in (False, True):
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for get_prev_content in (False, True):
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@ -804,18 +769,6 @@ class EventsStore(SQLBaseStore):
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(event_id, check_redacted, get_prev_content)
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)
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def _get_event_txn(self, txn, event_id, check_redacted=True,
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get_prev_content=False, allow_rejected=False):
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events = self._get_events_txn(
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txn, [event_id],
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check_redacted=check_redacted,
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get_prev_content=get_prev_content,
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allow_rejected=allow_rejected,
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)
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return events[0] if events else None
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def _get_events_from_cache(self, events, check_redacted, get_prev_content,
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allow_rejected):
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event_map = {}
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@ -981,34 +934,6 @@ class EventsStore(SQLBaseStore):
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return rows
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def _fetch_events_txn(self, txn, events, check_redacted=True,
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get_prev_content=False, allow_rejected=False):
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if not events:
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return {}
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rows = self._fetch_event_rows(
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txn, events,
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)
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if not allow_rejected:
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rows[:] = [r for r in rows if not r["rejects"]]
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res = [
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self._get_event_from_row_txn(
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txn,
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row["internal_metadata"], row["json"], row["redacts"],
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check_redacted=check_redacted,
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get_prev_content=get_prev_content,
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rejected_reason=row["rejects"],
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)
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for row in rows
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]
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return {
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r.event_id: r
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for r in res
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}
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@defer.inlineCallbacks
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def _get_event_from_row(self, internal_metadata, js, redacted,
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check_redacted=True, get_prev_content=False,
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@ -1070,69 +995,6 @@ class EventsStore(SQLBaseStore):
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defer.returnValue(ev)
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def _get_event_from_row_txn(self, txn, internal_metadata, js, redacted,
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check_redacted=True, get_prev_content=False,
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rejected_reason=None):
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d = json.loads(js)
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internal_metadata = json.loads(internal_metadata)
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if rejected_reason:
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rejected_reason = self._simple_select_one_onecol_txn(
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txn,
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table="rejections",
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keyvalues={"event_id": rejected_reason},
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retcol="reason",
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)
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ev = FrozenEvent(
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d,
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internal_metadata_dict=internal_metadata,
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rejected_reason=rejected_reason,
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)
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if check_redacted and redacted:
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ev = prune_event(ev)
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redaction_id = self._simple_select_one_onecol_txn(
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txn,
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table="redactions",
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keyvalues={"redacts": ev.event_id},
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retcol="event_id",
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)
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ev.unsigned["redacted_by"] = redaction_id
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# Get the redaction event.
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because = self._get_event_txn(
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txn,
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redaction_id,
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check_redacted=False
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)
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if because:
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ev.unsigned["redacted_because"] = because
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if get_prev_content and "replaces_state" in ev.unsigned:
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prev = self._get_event_txn(
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txn,
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ev.unsigned["replaces_state"],
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get_prev_content=False,
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)
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if prev:
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ev.unsigned["prev_content"] = prev.content
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ev.unsigned["prev_sender"] = prev.sender
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self._get_event_cache.prefill(
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(ev.event_id, check_redacted, get_prev_content), ev
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)
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return ev
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def _parse_events_txn(self, txn, rows):
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event_ids = [r["event_id"] for r in rows]
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return self._get_events_txn(txn, event_ids)
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@defer.inlineCallbacks
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def count_daily_messages(self):
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"""
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@ -194,32 +194,44 @@ class RoomStore(SQLBaseStore):
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@cachedInlineCallbacks()
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def get_room_name_and_aliases(self, room_id):
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def f(txn):
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def get_room_name(txn):
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sql = (
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"SELECT event_id FROM current_state_events "
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"WHERE room_id = ? "
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"SELECT name FROM room_names"
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" INNER JOIN current_state_events USING (room_id, event_id)"
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" WHERE room_id = ?"
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" LIMIT 1"
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)
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sql += " AND ((type = 'm.room.name' AND state_key = '')"
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sql += " OR type = 'm.room.aliases')"
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txn.execute(sql, (room_id,))
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results = self.cursor_to_dict(txn)
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rows = txn.fetchall()
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if rows:
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return rows[0][0]
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else:
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return None
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return self._parse_events_txn(txn, results)
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return [row[0] for row in txn.fetchall()]
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events = yield self.runInteraction("get_room_name_and_aliases", f)
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def get_room_aliases(txn):
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sql = (
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"SELECT content FROM current_state_events"
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" INNER JOIN events USING (room_id, event_id)"
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" WHERE room_id = ?"
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)
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txn.execute(sql, (room_id,))
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return [row[0] for row in txn.fetchall()]
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name = yield self.runInteraction("get_room_name", get_room_name)
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alias_contents = yield self.runInteraction("get_room_aliases", get_room_aliases)
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name = None
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aliases = []
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for e in events:
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if e.type == 'm.room.name':
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if 'name' in e.content:
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name = e.content['name']
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elif e.type == 'm.room.aliases':
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if 'aliases' in e.content:
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aliases.extend(e.content['aliases'])
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for c in alias_contents:
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try:
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content = json.loads(c)
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except:
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continue
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aliases.extend(content.get('aliases', []))
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defer.returnValue((name, aliases))
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@ -21,6 +21,7 @@ from synapse.storage.engines import PostgresEngine, Sqlite3Engine
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import logging
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import re
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import ujson as json
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logger = logging.getLogger(__name__)
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@ -52,7 +53,7 @@ class SearchStore(BackgroundUpdateStore):
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def reindex_search_txn(txn):
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sql = (
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"SELECT stream_ordering, event_id FROM events"
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"SELECT stream_ordering, event_id, room_id, type, content FROM events"
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" WHERE ? <= stream_ordering AND stream_ordering < ?"
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" AND (%s)"
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" ORDER BY stream_ordering DESC"
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@ -61,28 +62,30 @@ class SearchStore(BackgroundUpdateStore):
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txn.execute(sql, (target_min_stream_id, max_stream_id, batch_size))
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rows = txn.fetchall()
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rows = self.cursor_to_dict(txn)
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if not rows:
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return 0
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min_stream_id = rows[-1][0]
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event_ids = [row[1] for row in rows]
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events = self._get_events_txn(txn, event_ids)
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min_stream_id = rows[-1]["stream_ordering"]
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event_search_rows = []
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for event in events:
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for row in rows:
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try:
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event_id = event.event_id
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room_id = event.room_id
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content = event.content
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if event.type == "m.room.message":
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event_id = row["event_id"]
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room_id = row["room_id"]
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etype = row["type"]
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try:
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content = json.loads(row["content"])
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except:
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continue
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if etype == "m.room.message":
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key = "content.body"
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value = content["body"]
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elif event.type == "m.room.topic":
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elif etype == "m.room.topic":
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key = "content.topic"
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value = content["topic"]
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elif event.type == "m.room.name":
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elif etype == "m.room.name":
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key = "content.name"
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value = content["name"]
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except (KeyError, AttributeError):
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@ -132,17 +132,16 @@ class StreamStore(SQLBaseStore):
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return True
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return False
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ret = self._get_events_txn(
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txn,
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# apply the filter on the room id list
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[
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r["event_id"] for r in rows
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if app_service_interested(r)
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],
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return [r for r in rows if app_service_interested(r)]
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rows = yield self.runInteraction("get_appservice_room_stream", f)
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ret = yield self._get_events(
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[r["event_id"] for r in rows],
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get_prev_content=True
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)
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self._set_before_and_after(ret, rows)
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self._set_before_and_after(ret, rows, topo_order=from_id is None)
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if rows:
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key = "s%d" % max(r["stream_ordering"] for r in rows)
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@ -151,10 +150,7 @@ class StreamStore(SQLBaseStore):
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# get.
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key = to_key
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return ret, key
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results = yield self.runInteraction("get_appservice_room_stream", f)
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defer.returnValue(results)
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defer.returnValue((ret, key))
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@defer.inlineCallbacks
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def get_room_events_stream_for_rooms(self, room_ids, from_key, to_key, limit=0,
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@ -357,7 +357,7 @@ class ApplicationServiceTransactionStoreTestCase(unittest.TestCase):
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other_events = [Mock(event_id="e5"), Mock(event_id="e6")]
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# we aren't testing store._base stuff here, so mock this out
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self.store._get_events_txn = Mock(return_value=events)
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self.store.get_events = Mock(return_value=events)
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yield self._insert_txn(self.as_list[1]["id"], 9, other_events)
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yield self._insert_txn(service.id, 10, events)
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