diff options
Diffstat (limited to 'synapse/storage/monthly_active_users.py')
| -rw-r--r-- | synapse/storage/monthly_active_users.py | 91 |
1 files changed, 43 insertions, 48 deletions
diff --git a/synapse/storage/monthly_active_users.py b/synapse/storage/monthly_active_users.py index 2872ba4cae..d06c90cbcc 100644 --- a/synapse/storage/monthly_active_users.py +++ b/synapse/storage/monthly_active_users.py @@ -1,6 +1,21 @@ +# -*- coding: utf-8 -*- +# Copyright 2018 New Vector +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + from twisted.internet import defer -from synapse.util.caches.descriptors import cachedInlineCallbacks -from synapse.storage.engines import PostgresEngine, Sqlite3Engine + +from synapse.util.caches.descriptors import cached, cachedInlineCallbacks from ._base import SQLBaseStore @@ -9,7 +24,7 @@ class MonthlyActiveUsersStore(SQLBaseStore): def __init__(self, dbconn, hs): super(MonthlyActiveUsersStore, self).__init__(None, hs) self._clock = hs.get_clock() - self.max_mau_value = hs.config.max_mau_value + self.hs = hs def reap_monthly_active_users(self): """ @@ -19,62 +34,41 @@ class MonthlyActiveUsersStore(SQLBaseStore): Defered() """ def _reap_users(txn): + thirty_days_ago = ( int(self._clock.time_msec()) - (1000 * 60 * 60 * 24 * 30) ) - 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 < ?" + 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,)) + txn.execute(sql, (thirty_days_ago,)) + sql = """ + DELETE FROM monthly_active_users + ORDER BY timestamp desc + LIMIT -1 OFFSET ? + """ + txn.execute(sql, (self.hs.config.max_mau_value,)) - # It seems poor to invalidate the whole cache, but the alternative - # is to select then delete which has its own problems. - # 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. + res = self.runInteraction("reap_monthly_active_users", _reap_users) + # It seems poor to invalidate the whole cache, Postgres supports + # 'Returning' which would allow me to invalidate only the + # specific users, but sqlite has no way to do this and instead + # I would need to SELECT and the DELETE which without locking + # is racy. + # Have resolved to invalidate the whole cache for now and do + # something about it if and when the perf becomes significant + self.is_user_monthly_active.invalidate_all() + self.get_monthly_active_count.invalidate_all() + return res - 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) + @cached(num_args=0) def get_monthly_active_count(self): """ Generates current count of monthly active users.abs Return: Defered(int): Number of current monthly active users """ + def _count_users(txn): sql = "SELECT COALESCE(count(*), 0) FROM monthly_active_users" @@ -91,7 +85,7 @@ class MonthlyActiveUsersStore(SQLBaseStore): Deferred(bool): True if a new entry was created, False if an existing one was updated. """ - return self._simple_upsert( + self._simple_upsert( desc="upsert_monthly_active_user", table="monthly_active_users", keyvalues={ @@ -102,6 +96,8 @@ class MonthlyActiveUsersStore(SQLBaseStore): }, lock=False, ) + self.is_user_monthly_active.invalidate((user_id,)) + self.get_monthly_active_count.invalidate(()) @cachedInlineCallbacks(num_args=1) def is_user_monthly_active(self, user_id): @@ -120,5 +116,4 @@ class MonthlyActiveUsersStore(SQLBaseStore): retcol="user_id", desc="is_user_monthly_active", ) - defer.returnValue(bool(user_present)) |