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Avoid locking for upsert on pushers tables

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* replace the upsert into deleted_pushers with an insert
* no need to lock for upsert on pusher_throttle
This commit is contained in:
Richard van der Hoff 2017-11-16 17:44:52 +00:00
parent ba05f28ae7
commit 06e5bcfc83
2 changed files with 51 additions and 5 deletions
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21
synapse/storage/pusher.py
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@ -244,11 +244,19 @@ class PusherStore(SQLBaseStore):
"pushers",
{"app_id": app_id, "pushkey": pushkey, "user_name": user_id}
)
self._simple_upsert_txn(
# it's possible for us to end up with duplicate rows for
# (app_id, pushkey, user_id) at different stream_ids, but that
# doesn't really matter.
self._simple_insert_txn(
txn,
"deleted_pushers",
{"app_id": app_id, "pushkey": pushkey, "user_id": user_id},
{"stream_id": stream_id},
table="deleted_pushers",
values={
"stream_id": stream_id,
"app_id": app_id,
"pushkey": pushkey,
"user_id": user_id,
},
)
with self._pushers_id_gen.get_next() as stream_id:
@ -311,9 +319,12 @@ class PusherStore(SQLBaseStore):
@defer.inlineCallbacks
def set_throttle_params(self, pusher_id, room_id, params):
# no need to lock because `pusher_throttle` has a primary key on
# (pusher, room_id) so _simple_upsert will retry
yield self._simple_upsert(
"pusher_throttle",
{"pusher": pusher_id, "room_id": room_id},
params,
desc="set_throttle_params"
desc="set_throttle_params",
lock=False,
)