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Don't lock user_ips table for upsert.

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This commit is contained in:
Erik Johnston 2015-05-01 10:46:48 +01:00
parent fabb7acd45
commit 657298cebd
2 changed files with 10 additions and 4 deletions
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3
synapse/storage/__init__.py
View File

@ -104,6 +104,8 @@ class DataStore(RoomMemberStore, RoomStore,
self.client_ip_last_seen.prefill(*key + (now,))
# It's safe not to lock here: a) no unique constraint,
# b) LAST_SEEN_GRANULARITY makes concurrent updates incredibly unlikely
yield self._simple_upsert(
"user_ips",
keyvalues={
@ -117,6 +119,7 @@ class DataStore(RoomMemberStore, RoomStore,
"last_seen": now,
},
desc="insert_client_ip",
lock=False,
)
def get_user_ip_and_agents(self, user):

11
synapse/storage/_base.py
View File

@ -452,7 +452,7 @@ class SQLBaseStore(object):
txn.execute(sql, values.values())
def _simple_upsert(self, table, keyvalues, values,
insertion_values={}, desc="_simple_upsert"):
insertion_values={}, desc="_simple_upsert", lock=True):
"""
Args:
table (str): The table to upsert into
@ -464,11 +464,14 @@ class SQLBaseStore(object):
return self.runInteraction(
desc,
self._simple_upsert_txn, table, keyvalues, values, insertion_values,
lock
)
def _simple_upsert_txn(self, txn, table, keyvalues, values, insertion_values={}):
# We need to lock the table :(
self.database_engine.lock_table(txn, table)
def _simple_upsert_txn(self, txn, table, keyvalues, values, insertion_values={},
lock=True):
# We need to lock the table :(, unless we're *really* careful
if lock:
self.database_engine.lock_table(txn, table)
# Try to update
sql = "UPDATE %s SET %s WHERE %s" % (