wip attempt at caching

This commit is contained in:
Neil Johnson 2018-08-02 22:41:05 +01:00
parent 74b1d46ad9
commit 4ecb4bdac9

View File

@ -1,4 +1,6 @@
from twisted.internet import defer
from synapse.util.caches.descriptors import cachedInlineCallbacks
from synapse.storage.engines import PostgresEngine, Sqlite3Engine
from ._base import SQLBaseStore
@ -20,17 +22,53 @@ class MonthlyActiveUsersStore(SQLBaseStore):
thirty_days_ago = (
int(self._clock.time_msec()) - (1000 * 60 * 60 * 24 * 30)
)
sql = "DELETE FROM monthly_active_users WHERE timestamp < ?"
txn.execute(sql, (thirty_days_ago,))
sql = """
DELETE FROM monthly_active_users
ORDER BY timestamp desc
LIMIT -1 OFFSET ?
"""
txn.execute(sql, (self.max_mau_value,))
if isinstance(self.database_engine, PostgresEngine):
sql = """
DELETE FROM monthly_active_users
WHERE timestamp < ?
RETURNING user_id
"""
txn.execute(sql, (thirty_days_ago,))
res = txn.fetchall()
for r in res:
self.is_user_monthly_active.invalidate(r)
sql = """
DELETE FROM monthly_active_users
ORDER BY timestamp desc
LIMIT -1 OFFSET ?
RETURNING user_id
"""
txn.execute(sql, (self.max_mau_value,))
res = txn.fetchall()
for r in res:
self.is_user_monthly_active.invalidate(r)
print r
self.get_monthly_active_count.invalidate()
elif isinstance(self.database_engine, Sqlite3Engine):
sql = "DELETE FROM monthly_active_users WHERE timestamp < ?"
txn.execute(sql, (thirty_days_ago,))
sql = """
DELETE FROM monthly_active_users
ORDER BY timestamp desc
LIMIT -1 OFFSET ?
"""
txn.execute(sql, (self.max_mau_value,))
# It seems poor to invalidate the whole cache, but the alternative
# is to select then delete which has it's own problem.
# It seems unlikely that anyone using this feature on large datasets
# would be using sqlite and if they are then there will be
# larger perf issues than this one to encourage an upgrade to postgres.
self.is_user_monthly_active.invalidate_all()
self.get_monthly_active_count.invalidate_all()
return self.runInteraction("reap_monthly_active_users", _reap_users)
@cachedInlineCallbacks(num_args=0)
def get_monthly_active_count(self):
"""
Generates current count of monthly active users.abs
@ -65,7 +103,7 @@ class MonthlyActiveUsersStore(SQLBaseStore):
lock=False,
)
@defer.inlineCallbacks
@cachedInlineCallbacks(num_args=1)
def is_user_monthly_active(self, user_id):
"""
Checks if a given user is part of the monthly active user group