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Add a replication stream for state groups

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This commit is contained in:
Mark Haines 2016-03-30 15:58:20 +01:00
parent fc66df1e60
commit 31a9eceda5
4 changed files with 91 additions and 11 deletions
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6
synapse/storage/events.py
View file

@ -1097,10 +1097,12 @@ class EventsStore(SQLBaseStore):
new events or as backfilled events"""
def get_all_new_events_txn(txn):
sql = (
"SELECT e.stream_ordering, ej.internal_metadata, ej.json"
"SELECT e.stream_ordering, ej.internal_metadata, ej.json, eg.state_group"
" FROM events as e"
" JOIN event_json as ej"
" ON e.event_id = ej.event_id AND e.room_id = ej.room_id"
" LEFT JOIN event_to_state_groups as eg"
" ON e.event_id = eg.event_id"
" WHERE ? < e.stream_ordering AND e.stream_ordering <= ?"
" ORDER BY e.stream_ordering ASC"
" LIMIT ?"
@ -1116,6 +1118,8 @@ class EventsStore(SQLBaseStore):
" FROM events as e"
" JOIN event_json as ej"
" ON e.event_id = ej.event_id AND e.room_id = ej.room_id"
" LEFT JOIN event_to_state_groups as eg"
" ON e.event_id = eg.event_id"
" WHERE ? > e.stream_ordering AND e.stream_ordering >= ?"
" ORDER BY e.stream_ordering DESC"
" LIMIT ?"

30
synapse/storage/state.py
View file

@ -429,3 +429,33 @@ class StateStore(SQLBaseStore):
}
defer.returnValue(results)
def get_all_new_state_groups(self, last_id, current_id, limit):
def get_all_new_state_groups_txn(txn):
sql = (
"SELECT id, room_id, event_id FROM state_groups"
" WHERE ? < id AND id <= ? ORDER BY id LIMIT ?"
)
txn.execute(sql, (last_id, current_id, limit))
groups = txn.fetchall()
if not groups:
return ([], [])
lower_bound = groups[0][0]
upper_bound = groups[-1][0]
sql = (
"SELECT state_group, type, state_key, event_id"
" FROM state_groups_state"
" WHERE ? <= state_group AND state_group <= ?"
)
txn.execute(sql, (lower_bound, upper_bound))
state_group_state = txn.fetchall()
return (groups, state_group_state)
return self.runInteraction(
"get_all_new_state_groups", get_all_new_state_groups_txn
)
def get_state_stream_token(self):
return self._state_groups_id_gen.get_max_token()