diff options
Diffstat (limited to '')
| -rw-r--r-- | changelog.d/4081.bugfix | 2 | ||||
| -rwxr-xr-x | synapse/app/homeserver.py | 8 | ||||
| -rw-r--r-- | synapse/storage/monthly_active_users.py | 46 | ||||
| -rw-r--r-- | synapse/storage/registration.py | 16 | ||||
| -rw-r--r-- | tests/storage/test_monthly_active_users.py | 10 |
5 files changed, 55 insertions, 27 deletions
diff --git a/changelog.d/4081.bugfix b/changelog.d/4081.bugfix new file mode 100644 index 0000000000..f275acb61c --- /dev/null +++ b/changelog.d/4081.bugfix @@ -0,0 +1,2 @@ +Fix race condition in populating reserved users + diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py index 0b85b377e3..593e1e75db 100755 --- a/synapse/app/homeserver.py +++ b/synapse/app/homeserver.py @@ -553,14 +553,6 @@ def run(hs): generate_monthly_active_users, ) - # XXX is this really supposed to be a background process? it looks - # like it needs to complete before some of the other stuff runs. - run_as_background_process( - "initialise_reserved_users", - hs.get_datastore().initialise_reserved_users, - hs.config.mau_limits_reserved_threepids, - ) - start_generate_monthly_active_users() if hs.config.limit_usage_by_mau: clock.looping_call(start_generate_monthly_active_users, 5 * 60 * 1000) diff --git a/synapse/storage/monthly_active_users.py b/synapse/storage/monthly_active_users.py index 0fe8c8e24c..26e577814a 100644 --- a/synapse/storage/monthly_active_users.py +++ b/synapse/storage/monthly_active_users.py @@ -33,19 +33,28 @@ class MonthlyActiveUsersStore(SQLBaseStore): self._clock = hs.get_clock() self.hs = hs self.reserved_users = () + self.initialise_reserved_users( + dbconn.cursor(), hs.config.mau_limits_reserved_threepids + ) - @defer.inlineCallbacks - def initialise_reserved_users(self, threepids): - store = self.hs.get_datastore() + def initialise_reserved_users(self, txn, threepids): + """ + Ensures that reserved threepids are accounted for in the MAU table, should + be called on start up. + + Arguments: + threepids []: List of threepid dicts to reserve + """ reserved_user_list = [] # Do not add more reserved users than the total allowable number for tp in threepids[:self.hs.config.max_mau_value]: - user_id = yield store.get_user_id_by_threepid( + user_id = self.get_user_id_by_threepid_txn( + txn, tp["medium"], tp["address"] ) if user_id: - yield self.upsert_monthly_active_user(user_id) + self.upsert_monthly_active_user_txn(txn, user_id) reserved_user_list.append(user_id) else: logger.warning( @@ -55,8 +64,7 @@ class MonthlyActiveUsersStore(SQLBaseStore): @defer.inlineCallbacks def reap_monthly_active_users(self): - """ - Cleans out monthly active user table to ensure that no stale + """Cleans out monthly active user table to ensure that no stale entries exist. Returns: @@ -165,19 +173,33 @@ class MonthlyActiveUsersStore(SQLBaseStore): @defer.inlineCallbacks def upsert_monthly_active_user(self, user_id): + """Updates or inserts monthly active user member + Arguments: + user_id (str): user to add/update + """ + is_insert = yield self.runInteraction( + "upsert_monthly_active_user", self.upsert_monthly_active_user_txn, + user_id + ) + if is_insert: + self.user_last_seen_monthly_active.invalidate((user_id,)) + self.get_monthly_active_count.invalidate(()) + + def upsert_monthly_active_user_txn(self, txn, user_id): """ Updates or inserts monthly active user member Arguments: + txn (cursor): user_id (str): user to add/update - Deferred[bool]: True if a new entry was created, False if an + bool: True if a new entry was created, False if an existing one was updated. """ # Am consciously deciding to lock the table on the basis that is ought # never be a big table and alternative approaches (batching multiple # upserts into a single txn) introduced a lot of extra complexity. # See https://github.com/matrix-org/synapse/issues/3854 for more - is_insert = yield self._simple_upsert( - desc="upsert_monthly_active_user", + is_insert = self._simple_upsert_txn( + txn, table="monthly_active_users", keyvalues={ "user_id": user_id, @@ -186,9 +208,7 @@ class MonthlyActiveUsersStore(SQLBaseStore): "timestamp": int(self._clock.time_msec()), }, ) - if is_insert: - self.user_last_seen_monthly_active.invalidate((user_id,)) - self.get_monthly_active_count.invalidate(()) + return is_insert @cached(num_args=1) def user_last_seen_monthly_active(self, user_id): diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py index 26b429e307..01931f29cc 100644 --- a/synapse/storage/registration.py +++ b/synapse/storage/registration.py @@ -474,17 +474,25 @@ class RegistrationStore(RegistrationWorkerStore, @defer.inlineCallbacks def get_user_id_by_threepid(self, medium, address): - ret = yield self._simple_select_one( + user_id = yield self.runInteraction( + "get_user_id_by_threepid", self.get_user_id_by_threepid_txn, + medium, address + ) + defer.returnValue(user_id) + + def get_user_id_by_threepid_txn(self, txn, medium, address): + ret = self._simple_select_one_txn( + txn, "user_threepids", { "medium": medium, "address": address }, - ['user_id'], True, 'get_user_id_by_threepid' + ['user_id'], True ) if ret: - defer.returnValue(ret['user_id']) - defer.returnValue(None) + return ret['user_id'] + return None def user_delete_threepid(self, user_id, medium, address): return self._simple_delete( diff --git a/tests/storage/test_monthly_active_users.py b/tests/storage/test_monthly_active_users.py index 686f12a0dc..0c17745ae7 100644 --- a/tests/storage/test_monthly_active_users.py +++ b/tests/storage/test_monthly_active_users.py @@ -52,7 +52,10 @@ class MonthlyActiveUsersTestCase(HomeserverTestCase): now = int(self.hs.get_clock().time_msec()) self.store.user_add_threepid(user1, "email", user1_email, now, now) self.store.user_add_threepid(user2, "email", user2_email, now, now) - self.store.initialise_reserved_users(threepids) + + self.store.runInteraction( + "initialise", self.store.initialise_reserved_users, threepids + ) self.pump() active_count = self.store.get_monthly_active_count() @@ -199,7 +202,10 @@ class MonthlyActiveUsersTestCase(HomeserverTestCase): {'medium': 'email', 'address': user2_email}, ] self.hs.config.mau_limits_reserved_threepids = threepids - self.store.initialise_reserved_users(threepids) + self.store.runInteraction( + "initialise", self.store.initialise_reserved_users, threepids + ) + self.pump() count = self.store.get_registered_reserved_users_count() self.assertEquals(self.get_success(count), 0) |