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Move update_client_ip background job from the main process to the background worker. (#12251)

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reivilibre 2022-04-01 13:08:55 +01:00 committed by GitHub
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10 changed files with 159 additions and 152 deletions
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1
changelog.d/12251.feature Normal file
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@ -0,0 +1 @@
Offload the `update_client_ip` background job from the main process to the background worker, when using Redis-based replication.

2
synapse/app/admin_cmd.py
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@ -33,7 +33,6 @@ from synapse.handlers.admin import ExfiltrationWriter
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
from synapse.replication.slave.storage.client_ips import SlavedClientIpStore
from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore
from synapse.replication.slave.storage.devices import SlavedDeviceStore
from synapse.replication.slave.storage.events import SlavedEventStore
@ -61,7 +60,6 @@ class AdminCmdSlavedStore(
SlavedDeviceStore,
SlavedPushRuleStore,
SlavedEventStore,
SlavedClientIpStore,
BaseSlavedStore,
RoomWorkerStore,
):

2
synapse/app/generic_worker.py
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@ -53,7 +53,6 @@ from synapse.replication.http import REPLICATION_PREFIX, ReplicationRestResource
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
from synapse.replication.slave.storage.client_ips import SlavedClientIpStore
from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore
from synapse.replication.slave.storage.devices import SlavedDeviceStore
from synapse.replication.slave.storage.directory import DirectoryStore
@ -247,7 +246,6 @@ class GenericWorkerSlavedStore(
SlavedApplicationServiceStore,
SlavedRegistrationStore,
SlavedProfileStore,
SlavedClientIpStore,
SlavedFilteringStore,
MonthlyActiveUsersWorkerStore,
MediaRepositoryStore,

59
synapse/replication/slave/storage/client_ips.py
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@ -1,59 +0,0 @@
# Copyright 2017 Vector Creations Ltd
#
# 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 typing import TYPE_CHECKING
from synapse.storage.database import DatabasePool, LoggingDatabaseConnection
from synapse.storage.databases.main.client_ips import LAST_SEEN_GRANULARITY
from synapse.util.caches.lrucache import LruCache
from ._base import BaseSlavedStore
if TYPE_CHECKING:
from synapse.server import HomeServer
class SlavedClientIpStore(BaseSlavedStore):
def __init__(
self,
database: DatabasePool,
db_conn: LoggingDatabaseConnection,
hs: "HomeServer",
):
super().__init__(database, db_conn, hs)
self.client_ip_last_seen: LruCache[tuple, int] = LruCache(
cache_name="client_ip_last_seen", max_size=50000
)
async def insert_client_ip(
self, user_id: str, access_token: str, ip: str, user_agent: str, device_id: str
) -> None:
now = int(self._clock.time_msec())
key = (user_id, access_token, ip)
try:
last_seen = self.client_ip_last_seen.get(key)
except KeyError:
last_seen = None
# Rate-limited inserts
if last_seen is not None and (now - last_seen) < LAST_SEEN_GRANULARITY:
return
self.client_ip_last_seen.set(key, now)
self.hs.get_replication_command_handler().send_user_ip(
user_id, access_token, ip, user_agent, device_id, now
)

8
synapse/replication/tcp/commands.py
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@ -356,7 +356,7 @@ class UserIpCommand(Command):
access_token: str,
ip: str,
user_agent: str,
device_id: str,
device_id: Optional[str],
last_seen: int,
):
self.user_id = user_id
@ -389,6 +389,12 @@ class UserIpCommand(Command):
)
)
def __repr__(self) -> str:
return (
f"UserIpCommand({self.user_id!r}, .., {self.ip!r}, "
f"{self.user_agent!r}, {self.device_id!r}, {self.last_seen})"
)
class RemoteServerUpCommand(_SimpleCommand):
"""Sent when a worker has detected that a remote server is no longer

46
synapse/replication/tcp/handler.py
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@ -235,6 +235,14 @@ class ReplicationCommandHandler:
if self._is_master:
self._server_notices_sender = hs.get_server_notices_sender()
if hs.config.redis.redis_enabled:
# If we're using Redis, it's the background worker that should
# receive USER_IP commands and store the relevant client IPs.
self._should_insert_client_ips = hs.config.worker.run_background_tasks
else:
# If we're NOT using Redis, this must be handled by the master
self._should_insert_client_ips = hs.get_instance_name() == "master"
def _add_command_to_stream_queue(
self, conn: IReplicationConnection, cmd: Union[RdataCommand, PositionCommand]
) -> None:
@ -401,23 +409,37 @@ class ReplicationCommandHandler:
) -> Optional[Awaitable[None]]:
user_ip_cache_counter.inc()
if self._is_master:
if self._is_master or self._should_insert_client_ips:
# We make a point of only returning an awaitable if there's actually
# something to do; on_USER_IP is not an async function, but
# _handle_user_ip is.
# If on_USER_IP returns an awaitable, it gets scheduled as a
# background process (see `BaseReplicationStreamProtocol.handle_command`).
return self._handle_user_ip(cmd)
else:
# Returning None when this process definitely has nothing to do
# reduces the overhead of handling the USER_IP command, which is
# currently broadcast to all workers regardless of utility.
return None
async def _handle_user_ip(self, cmd: UserIpCommand) -> None:
await self._store.insert_client_ip(
cmd.user_id,
cmd.access_token,
cmd.ip,
cmd.user_agent,
cmd.device_id,
cmd.last_seen,
)
"""
Handles a User IP, branching depending on whether we are the main process
and/or the background worker.
"""
if self._is_master:
assert self._server_notices_sender is not None
await self._server_notices_sender.on_user_ip(cmd.user_id)
assert self._server_notices_sender is not None
await self._server_notices_sender.on_user_ip(cmd.user_id)
if self._should_insert_client_ips:
await self._store.insert_client_ip(
cmd.user_id,
cmd.access_token,
cmd.ip,
cmd.user_agent,
cmd.device_id,
cmd.last_seen,
)
def on_RDATA(self, conn: IReplicationConnection, cmd: RdataCommand) -> None:
if cmd.instance_name == self._instance_name:
@ -698,7 +720,7 @@ class ReplicationCommandHandler:
access_token: str,
ip: str,
user_agent: str,
device_id: str,
device_id: Optional[str],
last_seen: int,
) -> None:
"""Tell the master that the user made a request."""

8
synapse/storage/databases/main/__init__.py
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@ -33,7 +33,7 @@ from .account_data import AccountDataStore
from .appservice import ApplicationServiceStore, ApplicationServiceTransactionStore
from .cache import CacheInvalidationWorkerStore
from .censor_events import CensorEventsStore
from .client_ips import ClientIpStore
from .client_ips import ClientIpWorkerStore
from .deviceinbox import DeviceInboxStore
from .devices import DeviceStore
from .directory import DirectoryStore
@ -49,7 +49,7 @@ from .keys import KeyStore
from .lock import LockStore
from .media_repository import MediaRepositoryStore
from .metrics import ServerMetricsStore
from .monthly_active_users import MonthlyActiveUsersStore
from .monthly_active_users import MonthlyActiveUsersWorkerStore
from .openid import OpenIdStore
from .presence import PresenceStore
from .profile import ProfileStore
@ -112,13 +112,13 @@ class DataStore(
AccountDataStore,
EventPushActionsStore,
OpenIdStore,
ClientIpStore,
ClientIpWorkerStore,
DeviceStore,
DeviceInboxStore,
UserDirectoryStore,
GroupServerStore,
UserErasureStore,
MonthlyActiveUsersStore,
MonthlyActiveUsersWorkerStore,
StatsStore,
RelationsStore,
CensorEventsStore,

101
synapse/storage/databases/main/client_ips.py
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@ -25,7 +25,9 @@ from synapse.storage.database import (
LoggingTransaction,
make_tuple_comparison_clause,
)
from synapse.storage.databases.main.monthly_active_users import MonthlyActiveUsersStore
from synapse.storage.databases.main.monthly_active_users import (
MonthlyActiveUsersWorkerStore,
)
from synapse.types import JsonDict, UserID
from synapse.util.caches.lrucache import LruCache
@ -397,7 +399,7 @@ class ClientIpBackgroundUpdateStore(SQLBaseStore):
return updated
class ClientIpWorkerStore(ClientIpBackgroundUpdateStore):
class ClientIpWorkerStore(ClientIpBackgroundUpdateStore, MonthlyActiveUsersWorkerStore):
def __init__(
self,
database: DatabasePool,
@ -406,11 +408,40 @@ class ClientIpWorkerStore(ClientIpBackgroundUpdateStore):
):
super().__init__(database, db_conn, hs)
if hs.config.redis.redis_enabled:
# If we're using Redis, we can shift this update process off to
# the background worker
self._update_on_this_worker = hs.config.worker.run_background_tasks
else:
# If we're NOT using Redis, this must be handled by the master
self._update_on_this_worker = hs.get_instance_name() == "master"
self.user_ips_max_age = hs.config.server.user_ips_max_age
# (user_id, access_token, ip,) -> last_seen
self.client_ip_last_seen = LruCache[Tuple[str, str, str], int](
cache_name="client_ip_last_seen", max_size=50000
)
if hs.config.worker.run_background_tasks and self.user_ips_max_age:
self._clock.looping_call(self._prune_old_user_ips, 5 * 1000)
if self._update_on_this_worker:
# This is the designated worker that can write to the client IP
# tables.
# (user_id, access_token, ip,) -> (user_agent, device_id, last_seen)
self._batch_row_update: Dict[
Tuple[str, str, str], Tuple[str, Optional[str], int]
] = {}
self._client_ip_looper = self._clock.looping_call(
self._update_client_ips_batch, 5 * 1000
)
self.hs.get_reactor().addSystemEventTrigger(
"before", "shutdown", self._update_client_ips_batch
)
@wrap_as_background_process("prune_old_user_ips")
async def _prune_old_user_ips(self) -> None:
"""Removes entries in user IPs older than the configured period."""
@ -456,7 +487,7 @@ class ClientIpWorkerStore(ClientIpBackgroundUpdateStore):
"_prune_old_user_ips", _prune_old_user_ips_txn
)
async def get_last_client_ip_by_device(
async def _get_last_client_ip_by_device_from_database(
self, user_id: str, device_id: Optional[str]
) -> Dict[Tuple[str, str], DeviceLastConnectionInfo]:
"""For each device_id listed, give the user_ip it was last seen on.
@ -487,7 +518,7 @@ class ClientIpWorkerStore(ClientIpBackgroundUpdateStore):
return {(d["user_id"], d["device_id"]): d for d in res}
async def get_user_ip_and_agents(
async def _get_user_ip_and_agents_from_database(
self, user: UserID, since_ts: int = 0
) -> List[LastConnectionInfo]:
"""Fetch the IPs and user agents for a user since the given timestamp.
@ -539,34 +570,6 @@ class ClientIpWorkerStore(ClientIpBackgroundUpdateStore):
for access_token, ip, user_agent, last_seen in rows
]
class ClientIpStore(ClientIpWorkerStore, MonthlyActiveUsersStore):
def __init__(
self,
database: DatabasePool,
db_conn: LoggingDatabaseConnection,
hs: "HomeServer",
):
# (user_id, access_token, ip,) -> last_seen
self.client_ip_last_seen = LruCache[Tuple[str, str, str], int](
cache_name="client_ip_last_seen", max_size=50000
)
super().__init__(database, db_conn, hs)
# (user_id, access_token, ip,) -> (user_agent, device_id, last_seen)
self._batch_row_update: Dict[
Tuple[str, str, str], Tuple[str, Optional[str], int]
] = {}
self._client_ip_looper = self._clock.looping_call(
self._update_client_ips_batch, 5 * 1000
)
self.hs.get_reactor().addSystemEventTrigger(
"before", "shutdown", self._update_client_ips_batch
)
async def insert_client_ip(
self,
user_id: str,
@ -584,17 +587,27 @@ class ClientIpStore(ClientIpWorkerStore, MonthlyActiveUsersStore):
last_seen = self.client_ip_last_seen.get(key)
except KeyError:
last_seen = None
await self.populate_monthly_active_users(user_id)
# Rate-limited inserts
if last_seen is not None and (now - last_seen) < LAST_SEEN_GRANULARITY:
return
self.client_ip_last_seen.set(key, now)
self._batch_row_update[key] = (user_agent, device_id, now)
if self._update_on_this_worker:
await self.populate_monthly_active_users(user_id)
self._batch_row_update[key] = (user_agent, device_id, now)
else:
# We are not the designated writer-worker, so stream over replication
self.hs.get_replication_command_handler().send_user_ip(
user_id, access_token, ip, user_agent, device_id, now
)
@wrap_as_background_process("update_client_ips")
async def _update_client_ips_batch(self) -> None:
assert (
self._update_on_this_worker
), "This worker is not designated to update client IPs"
# If the DB pool has already terminated, don't try updating
if not self.db_pool.is_running():
@ -612,6 +625,10 @@ class ClientIpStore(ClientIpWorkerStore, MonthlyActiveUsersStore):
txn: LoggingTransaction,
to_update: Mapping[Tuple[str, str, str], Tuple[str, Optional[str], int]],
) -> None:
assert (
self._update_on_this_worker
), "This worker is not designated to update client IPs"
if "user_ips" in self.db_pool._unsafe_to_upsert_tables or (
not self.database_engine.can_native_upsert
):
@ -662,7 +679,12 @@ class ClientIpStore(ClientIpWorkerStore, MonthlyActiveUsersStore):
A dictionary mapping a tuple of (user_id, device_id) to dicts, with
keys giving the column names from the devices table.
"""
ret = await super().get_last_client_ip_by_device(user_id, device_id)
ret = await self._get_last_client_ip_by_device_from_database(user_id, device_id)
if not self._update_on_this_worker:
# Only the writing-worker has additional in-memory data to enhance
# the result
return ret
# Update what is retrieved from the database with data which is pending
# insertion, as if it has already been stored in the database.
@ -707,9 +729,16 @@ class ClientIpStore(ClientIpWorkerStore, MonthlyActiveUsersStore):
Only the latest user agent for each access token and IP address combination
is available.
"""
rows_from_db = await self._get_user_ip_and_agents_from_database(user, since_ts)
if not self._update_on_this_worker:
# Only the writing-worker has additional in-memory data to enhance
# the result
return rows_from_db
results: Dict[Tuple[str, str], LastConnectionInfo] = {
(connection["access_token"], connection["ip"]): connection
for connection in await super().get_user_ip_and_agents(user, since_ts)
for connection in rows_from_db
}
# Overlay data that is pending insertion on top of the results from the

60
synapse/storage/databases/main/monthly_active_users.py
View File

@ -15,7 +15,6 @@ import logging
from typing import TYPE_CHECKING, Dict, List, Optional, Tuple, cast
from synapse.metrics.background_process_metrics import wrap_as_background_process
from synapse.storage._base import SQLBaseStore
from synapse.storage.database import (
DatabasePool,
LoggingDatabaseConnection,
@ -36,7 +35,7 @@ logger = logging.getLogger(__name__)
LAST_SEEN_GRANULARITY = 60 * 60 * 1000
class MonthlyActiveUsersWorkerStore(SQLBaseStore):
class MonthlyActiveUsersWorkerStore(RegistrationWorkerStore):
def __init__(
self,
database: DatabasePool,
@ -47,9 +46,30 @@ class MonthlyActiveUsersWorkerStore(SQLBaseStore):
self._clock = hs.get_clock()
self.hs = hs
if hs.config.redis.redis_enabled:
# If we're using Redis, we can shift this update process off to
# the background worker
self._update_on_this_worker = hs.config.worker.run_background_tasks
else:
# If we're NOT using Redis, this must be handled by the master
self._update_on_this_worker = hs.get_instance_name() == "master"
self._limit_usage_by_mau = hs.config.server.limit_usage_by_mau
self._max_mau_value = hs.config.server.max_mau_value
self._mau_stats_only = hs.config.server.mau_stats_only
if self._update_on_this_worker:
# Do not add more reserved users than the total allowable number
self.db_pool.new_transaction(
db_conn,
"initialise_mau_threepids",
[],
[],
self._initialise_reserved_users,
hs.config.server.mau_limits_reserved_threepids[: self._max_mau_value],
)
@cached(num_args=0)
async def get_monthly_active_count(self) -> int:
"""Generates current count of monthly active users
@ -222,28 +242,6 @@ class MonthlyActiveUsersWorkerStore(SQLBaseStore):
"reap_monthly_active_users", _reap_users, reserved_users
)
class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore, RegistrationWorkerStore):
def __init__(
self,
database: DatabasePool,
db_conn: LoggingDatabaseConnection,
hs: "HomeServer",
):
super().__init__(database, db_conn, hs)
self._mau_stats_only = hs.config.server.mau_stats_only
# Do not add more reserved users than the total allowable number
self.db_pool.new_transaction(
db_conn,
"initialise_mau_threepids",
[],
[],
self._initialise_reserved_users,
hs.config.server.mau_limits_reserved_threepids[: self._max_mau_value],
)
def _initialise_reserved_users(
self, txn: LoggingTransaction, threepids: List[dict]
) -> None:
@ -254,6 +252,9 @@ class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore, RegistrationWorkerS
txn:
threepids: List of threepid dicts to reserve
"""
assert (
self._update_on_this_worker
), "This worker is not designated to update MAUs"
# XXX what is this function trying to achieve? It upserts into
# monthly_active_users for each *registered* reserved mau user, but why?
@ -287,6 +288,10 @@ class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore, RegistrationWorkerS
Args:
user_id: user to add/update
"""
assert (
self._update_on_this_worker
), "This worker is not designated to update MAUs"
# Support user never to be included in MAU stats. Note I can't easily call this
# from upsert_monthly_active_user_txn because then I need a _txn form of
# is_support_user which is complicated because I want to cache the result.
@ -322,6 +327,9 @@ class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore, RegistrationWorkerS
txn (cursor):
user_id (str): user to add/update
"""
assert (
self._update_on_this_worker
), "This worker is not designated to update MAUs"
# Am consciously deciding to lock the table on the basis that is ought
# never be a big table and alternative approaches (batching multiple
@ -349,6 +357,10 @@ class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore, RegistrationWorkerS
Args:
user_id(str): the user_id to query
"""
assert (
self._update_on_this_worker
), "This worker is not designated to update MAUs"
if self._limit_usage_by_mau or self._mau_stats_only:
# Trial users and guests should not be included as part of MAU group
is_guest = await self.is_guest(user_id) # type: ignore[attr-defined]

24
synapse/storage/databases/main/registration.py
View File

@ -1745,6 +1745,18 @@ class RegistrationWorkerStore(CacheInvalidationWorkerStore):
"replace_refresh_token", _replace_refresh_token_txn
)
@cached()
async def is_guest(self, user_id: str) -> bool:
res = await self.db_pool.simple_select_one_onecol(
table="users",
keyvalues={"name": user_id},
retcol="is_guest",
allow_none=True,
desc="is_guest",
)
return res if res else False
class RegistrationBackgroundUpdateStore(RegistrationWorkerStore):
def __init__(
@ -1887,18 +1899,6 @@ class RegistrationBackgroundUpdateStore(RegistrationWorkerStore):
self._invalidate_cache_and_stream(txn, self.get_user_by_id, (user_id,))
txn.call_after(self.is_guest.invalidate, (user_id,))
@cached()
async def is_guest(self, user_id: str) -> bool:
res = await self.db_pool.simple_select_one_onecol(
table="users",
keyvalues={"name": user_id},
retcol="is_guest",
allow_none=True,
desc="is_guest",
)
return res if res else False
class RegistrationStore(StatsStore, RegistrationBackgroundUpdateStore):
def __init__(