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https://github.com/element-hq/synapse
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wip attempt at caching
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1 changed files with 47 additions and 9 deletions
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@ -1,4 +1,6 @@
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from twisted.internet import defer
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from synapse.util.caches.descriptors import cachedInlineCallbacks
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from synapse.storage.engines import PostgresEngine, Sqlite3Engine
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from ._base import SQLBaseStore
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@ -20,17 +22,53 @@ class MonthlyActiveUsersStore(SQLBaseStore):
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thirty_days_ago = (
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int(self._clock.time_msec()) - (1000 * 60 * 60 * 24 * 30)
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)
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sql = "DELETE FROM monthly_active_users WHERE timestamp < ?"
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txn.execute(sql, (thirty_days_ago,))
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sql = """
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DELETE FROM monthly_active_users
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ORDER BY timestamp desc
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LIMIT -1 OFFSET ?
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"""
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txn.execute(sql, (self.max_mau_value,))
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if isinstance(self.database_engine, PostgresEngine):
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sql = """
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DELETE FROM monthly_active_users
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WHERE timestamp < ?
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RETURNING user_id
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"""
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txn.execute(sql, (thirty_days_ago,))
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res = txn.fetchall()
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for r in res:
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self.is_user_monthly_active.invalidate(r)
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sql = """
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DELETE FROM monthly_active_users
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ORDER BY timestamp desc
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LIMIT -1 OFFSET ?
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RETURNING user_id
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"""
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txn.execute(sql, (self.max_mau_value,))
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res = txn.fetchall()
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for r in res:
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self.is_user_monthly_active.invalidate(r)
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print r
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self.get_monthly_active_count.invalidate()
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elif isinstance(self.database_engine, Sqlite3Engine):
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sql = "DELETE FROM monthly_active_users WHERE timestamp < ?"
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txn.execute(sql, (thirty_days_ago,))
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sql = """
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DELETE FROM monthly_active_users
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ORDER BY timestamp desc
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LIMIT -1 OFFSET ?
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"""
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txn.execute(sql, (self.max_mau_value,))
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# It seems poor to invalidate the whole cache, but the alternative
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# is to select then delete which has it's own problem.
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# It seems unlikely that anyone using this feature on large datasets
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# would be using sqlite and if they are then there will be
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# larger perf issues than this one to encourage an upgrade to postgres.
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self.is_user_monthly_active.invalidate_all()
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self.get_monthly_active_count.invalidate_all()
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return self.runInteraction("reap_monthly_active_users", _reap_users)
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@cachedInlineCallbacks(num_args=0)
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def get_monthly_active_count(self):
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"""
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Generates current count of monthly active users.abs
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@ -65,7 +103,7 @@ class MonthlyActiveUsersStore(SQLBaseStore):
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lock=False,
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)
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@defer.inlineCallbacks
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@cachedInlineCallbacks(num_args=1)
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def is_user_monthly_active(self, user_id):
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"""
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Checks if a given user is part of the monthly active user group
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