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Move the event storage into a single transaction

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This commit is contained in:
Mark Haines 2014-08-26 14:31:48 +01:00
parent 1379dcae6f
commit 4b2ad549d5
6 changed files with 60 additions and 48 deletions
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59
synapse/storage/__init__.py
View File

@ -57,19 +57,21 @@ class DataStore(RoomMemberStore, RoomStore,
@defer.inlineCallbacks
@log_function
def persist_event(self, event, backfilled=False):
if event.type == RoomMemberEvent.TYPE:
yield self._store_room_member(event)
elif event.type == FeedbackEvent.TYPE:
yield self._store_feedback(event)
# elif event.type == RoomConfigEvent.TYPE:
# yield self._store_room_config(event)
elif event.type == RoomNameEvent.TYPE:
yield self._store_room_name(event)
elif event.type == RoomTopicEvent.TYPE:
yield self._store_room_topic(event)
# FIXME (erikj): This should be removed when we start amalgamating
# event and pdu storage
yield self.hs.get_federation().fill_out_prev_events(event)
ret = yield self._store_event(event, backfilled)
defer.returnValue(ret)
stream_ordering = None
if backfilled:
if not self.min_token_deferred.called:
yield self.min_token_deferred
self.min_token -= 1
stream_ordering = self.min_token
latest = yield self._db_pool.runInteraction(
_persist_event_txn, event, backfilled, stream_ordering
)
defer.returnValue(latest)
@defer.inlineCallbacks
def get_event(self, event_id):
@ -89,12 +91,18 @@ class DataStore(RoomMemberStore, RoomStore,
event = self._parse_event_from_row(events_dict)
defer.returnValue(event)
@defer.inlineCallbacks
@log_function
def _store_event(self, event, backfilled):
# FIXME (erikj): This should be removed when we start amalgamating
# event and pdu storage
yield self.hs.get_federation().fill_out_prev_events(event)
def _persist_event_txn(self, txn, event, backfilled, stream_ordering=None):
if event.type == RoomMemberEvent.TYPE:
self._store_room_member_txn(txn, event)
elif event.type == FeedbackEvent.TYPE:
self._store_feedback_txn(txn,event)
# elif event.type == RoomConfigEvent.TYPE:
# self._store_room_config_txn(txn, event)
elif event.type == RoomNameEvent.TYPE:
self._store_room_name_txn(txn, event)
elif event.type == RoomTopicEvent.TYPE:
self._store_room_topic_txn(txn, event)
vals = {
"topological_ordering": event.depth,
@ -105,11 +113,8 @@ class DataStore(RoomMemberStore, RoomStore,
"processed": True,
}
if backfilled:
if not self.min_token_deferred.called:
yield self.min_token_deferred
self.min_token -= 1
vals["stream_ordering"] = self.min_token
if stream_ordering is not None:
vals["stream_ordering"] = stream_ordering
unrec = {
k: v
@ -119,7 +124,7 @@ class DataStore(RoomMemberStore, RoomStore,
vals["unrecognized_keys"] = json.dumps(unrec)
try:
yield self._simple_insert("events", vals)
self._simple_insert_txn(txn, "events", vals)
except:
logger.exception(
"Failed to persist, probably duplicate: %s",
@ -138,9 +143,10 @@ class DataStore(RoomMemberStore, RoomStore,
if hasattr(event, "prev_state"):
vals["prev_state"] = event.prev_state
yield self._simple_insert("state_events", vals)
self._simple_insert_txn(txn, "state_events", vals)
yield self._simple_insert(
self._simple_insert_txn(
txn
"current_state_events",
{
"event_id": event.event_id,
@ -150,8 +156,7 @@ class DataStore(RoomMemberStore, RoomStore,
}
)
latest = yield self.get_room_events_max_id()
defer.returnValue(latest)
return self._get_room_events_max_id_(txn)
@defer.inlineCallbacks
def get_current_state(self, room_id, event_type=None, state_key=""):

8
synapse/storage/_base.py
View File

@ -86,16 +86,18 @@ class SQLBaseStore(object):
table : string giving the table name
values : dict of new column names and values for them
"""
return self._db_pool.runInteraction(
self._simple_insert_txn, table, values,
)
def _simple_insert_txn(self, txn, table, values):
sql = "INSERT INTO %s (%s) VALUES(%s)" % (
table,
", ".join(k for k in values),
", ".join("?" for k in values)
)
def func(txn):
txn.execute(sql, values.values())
return txn.lastrowid
return self._db_pool.runInteraction(func)
def _simple_select_one(self, table, keyvalues, retcols,
allow_none=False):

4
synapse/storage/feedback.py
View File

@ -24,8 +24,8 @@ import json
class FeedbackStore(SQLBaseStore):
def _store_feedback(self, event):
return self._simple_insert("feedback", {
def _store_feedback_txn(self, txn, event):
self._simple_insert_txn(txn, "feedback", {
"event_id": event.event_id,
"feedback_type": event.feedback_type,
"room_id": event.room_id,

10
synapse/storage/room.py
View File

@ -131,8 +131,9 @@ class RoomStore(SQLBaseStore):
defer.returnValue(ret)
def _store_room_topic(self, event):
return self._simple_insert(
def _store_room_topic_txn(self, txn, event):
self._simple_insert_txn(
txn,
"topics",
{
"event_id": event.event_id,
@ -141,8 +142,9 @@ class RoomStore(SQLBaseStore):
}
)
def _store_room_name(self, event):
return self._simple_insert(
def _store_room_name_txn(self, txn, event):
self._simple_insert_txn(
txn,
"room_names",
{
"event_id": event.event_id,

10
synapse/storage/roommember.py
View File

@ -31,13 +31,13 @@ logger = logging.getLogger(__name__)
class RoomMemberStore(SQLBaseStore):
@defer.inlineCallbacks
def _store_room_member(self, event):
def _store_room_member_txn(self, txn, event):
"""Store a room member in the database.
"""
domain = self.hs.parse_userid(event.target_user_id).domain
yield self._simple_insert(
self._simple_insert_txn(
txn,
"room_memberships",
{
"event_id": event.event_id,
@ -54,13 +54,13 @@ class RoomMemberStore(SQLBaseStore):
"INSERT OR IGNORE INTO room_hosts (room_id, host) "
"VALUES (?, ?)"
)
yield self._execute(None, sql, event.room_id, domain)
txn.execute(sql, event.room_id, domain)
else:
sql = (
"DELETE FROM room_hosts WHERE room_id = ? AND host = ?"
)
yield self._execute(None, sql, event.room_id, domain)
txn.execute(sql, event.room_id, domain)
@defer.inlineCallbacks
def get_room_member(self, user_id, room_id):

13
synapse/storage/stream.py
View File

@ -283,17 +283,20 @@ class StreamStore(SQLBaseStore):
)
)
@defer.inlineCallbacks
def get_room_events_max_id(self):
res = yield self._execute_and_decode(
return self._db_pool.runInteraction(self._get_room_events_max_id_txn)
def _get_room_events_max_id_txn(self, txn):
txn.execute(
"SELECT MAX(stream_ordering) as m FROM events"
)
res = self.cursor_to_dict(txn)
logger.debug("get_room_events_max_id: %s", res)
if not res or not res[0] or not res[0]["m"]:
defer.returnValue("s1")
return
return "s1"
key = res[0]["m"] + 1
defer.returnValue("s%d" % (key,))
return "s%d" % (key,)