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Port synapse.replication.tcp to async/await (#6666)

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* Port synapse.replication.tcp to async/await

* Newsfile

* Correctly document type of on_<FOO> functions as async

* Don't be overenthusiastic with the asyncing....
This commit is contained in:
Erik Johnston 2020-01-16 09:16:12 +00:00 committed by GitHub
parent 19a1aac48c
commit 48c3a96886
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15 changed files with 80 additions and 105 deletions
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1
changelog.d/6666.misc Normal file
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@ -0,0 +1 @@
Port `synapse.replication.tcp` to async/await.

3
synapse/app/admin_cmd.py
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@ -84,8 +84,7 @@ class AdminCmdServer(HomeServer):
class AdminCmdReplicationHandler(ReplicationClientHandler):
@defer.inlineCallbacks
def on_rdata(self, stream_name, token, rows):
async def on_rdata(self, stream_name, token, rows):
pass
def get_streams_to_replicate(self):

5
synapse/app/appservice.py
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@ -115,9 +115,8 @@ class ASReplicationHandler(ReplicationClientHandler):
super(ASReplicationHandler, self).__init__(hs.get_datastore())
self.appservice_handler = hs.get_application_service_handler()
@defer.inlineCallbacks
def on_rdata(self, stream_name, token, rows):
yield super(ASReplicationHandler, self).on_rdata(stream_name, token, rows)
async def on_rdata(self, stream_name, token, rows):
await super(ASReplicationHandler, self).on_rdata(stream_name, token, rows)
if stream_name == "events":
max_stream_id = self.store.get_room_max_stream_ordering()

5
synapse/app/federation_sender.py
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@ -145,9 +145,8 @@ class FederationSenderReplicationHandler(ReplicationClientHandler):
super(FederationSenderReplicationHandler, self).__init__(hs.get_datastore())
self.send_handler = FederationSenderHandler(hs, self)
@defer.inlineCallbacks
def on_rdata(self, stream_name, token, rows):
yield super(FederationSenderReplicationHandler, self).on_rdata(
async def on_rdata(self, stream_name, token, rows):
await super(FederationSenderReplicationHandler, self).on_rdata(
stream_name, token, rows
)
self.send_handler.process_replication_rows(stream_name, token, rows)

5
synapse/app/pusher.py
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@ -141,9 +141,8 @@ class PusherReplicationHandler(ReplicationClientHandler):
self.pusher_pool = hs.get_pusherpool()
@defer.inlineCallbacks
def on_rdata(self, stream_name, token, rows):
yield super(PusherReplicationHandler, self).on_rdata(stream_name, token, rows)
async def on_rdata(self, stream_name, token, rows):
await super(PusherReplicationHandler, self).on_rdata(stream_name, token, rows)
run_in_background(self.poke_pushers, stream_name, token, rows)
@defer.inlineCallbacks

5
synapse/app/synchrotron.py
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@ -358,9 +358,8 @@ class SyncReplicationHandler(ReplicationClientHandler):
self.presence_handler = hs.get_presence_handler()
self.notifier = hs.get_notifier()
@defer.inlineCallbacks
def on_rdata(self, stream_name, token, rows):
yield super(SyncReplicationHandler, self).on_rdata(stream_name, token, rows)
async def on_rdata(self, stream_name, token, rows):
await super(SyncReplicationHandler, self).on_rdata(stream_name, token, rows)
run_in_background(self.process_and_notify, stream_name, token, rows)
def get_streams_to_replicate(self):

5
synapse/app/user_dir.py
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@ -172,9 +172,8 @@ class UserDirectoryReplicationHandler(ReplicationClientHandler):
super(UserDirectoryReplicationHandler, self).__init__(hs.get_datastore())
self.user_directory = hs.get_user_directory_handler()
@defer.inlineCallbacks
def on_rdata(self, stream_name, token, rows):
yield super(UserDirectoryReplicationHandler, self).on_rdata(
async def on_rdata(self, stream_name, token, rows):
await super(UserDirectoryReplicationHandler, self).on_rdata(
stream_name, token, rows
)
if stream_name == EventsStream.NAME:

4
synapse/federation/send_queue.py
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@ -259,7 +259,9 @@ class FederationRemoteSendQueue(object):
def federation_ack(self, token):
self._clear_queue_before_pos(token)
def get_replication_rows(self, from_token, to_token, limit, federation_ack=None):
async def get_replication_rows(
self, from_token, to_token, limit, federation_ack=None
):
"""Get rows to be sent over federation between the two tokens
Args:

2
synapse/handlers/typing.py
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@ -257,7 +257,7 @@ class TypingHandler(object):
"typing_key", self._latest_room_serial, rooms=[member.room_id]
)
def get_all_typing_updates(self, last_id, current_id):
async def get_all_typing_updates(self, last_id, current_id):
if last_id == current_id:
return []

11
synapse/replication/tcp/client.py
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@ -110,7 +110,7 @@ class ReplicationClientHandler(AbstractReplicationClientHandler):
port = hs.config.worker_replication_port
hs.get_reactor().connectTCP(host, port, self.factory)
def on_rdata(self, stream_name, token, rows):
async def on_rdata(self, stream_name, token, rows):
"""Called to handle a batch of replication data with a given stream token.
By default this just pokes the slave store. Can be overridden in subclasses to
@ -121,20 +121,17 @@ class ReplicationClientHandler(AbstractReplicationClientHandler):
token (int): stream token for this batch of rows
rows (list): a list of Stream.ROW_TYPE objects as returned by
Stream.parse_row.
Returns:
Deferred|None
"""
logger.debug("Received rdata %s -> %s", stream_name, token)
return self.store.process_replication_rows(stream_name, token, rows)
self.store.process_replication_rows(stream_name, token, rows)
def on_position(self, stream_name, token):
async def on_position(self, stream_name, token):
"""Called when we get new position data. By default this just pokes
the slave store.
Can be overriden in subclasses to handle more.
"""
return self.store.process_replication_rows(stream_name, token, [])
self.store.process_replication_rows(stream_name, token, [])
def on_sync(self, data):
"""When we received a SYNC we wake up any deferreds that were waiting

72
synapse/replication/tcp/protocol.py
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@ -81,12 +81,11 @@ from synapse.replication.tcp.commands import (
SyncCommand,
UserSyncCommand,
)
from synapse.replication.tcp.streams import STREAMS_MAP
from synapse.types import Collection
from synapse.util import Clock
from synapse.util.stringutils import random_string
from .streams import STREAMS_MAP
connection_close_counter = Counter(
"synapse_replication_tcp_protocol_close_reason", "", ["reason_type"]
)
@ -241,19 +240,16 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver):
"replication-" + cmd.get_logcontext_id(), self.handle_command, cmd
)
def handle_command(self, cmd):
async def handle_command(self, cmd: Command):
"""Handle a command we have received over the replication stream.
By default delegates to on_<COMMAND>
By default delegates to on_<COMMAND>, which should return an awaitable.
Args:
cmd (synapse.replication.tcp.commands.Command): received command
Returns:
Deferred
cmd: received command
"""
handler = getattr(self, "on_%s" % (cmd.NAME,))
return handler(cmd)
await handler(cmd)
def close(self):
logger.warning("[%s] Closing connection", self.id())
@ -326,10 +322,10 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver):
for cmd in pending:
self.send_command(cmd)
def on_PING(self, line):
async def on_PING(self, line):
self.received_ping = True
def on_ERROR(self, cmd):
async def on_ERROR(self, cmd):
logger.error("[%s] Remote reported error: %r", self.id(), cmd.data)
def pauseProducing(self):
@ -429,16 +425,16 @@ class ServerReplicationStreamProtocol(BaseReplicationStreamProtocol):
BaseReplicationStreamProtocol.connectionMade(self)
self.streamer.new_connection(self)
def on_NAME(self, cmd):
async def on_NAME(self, cmd):
logger.info("[%s] Renamed to %r", self.id(), cmd.data)
self.name = cmd.data
def on_USER_SYNC(self, cmd):
return self.streamer.on_user_sync(
async def on_USER_SYNC(self, cmd):
await self.streamer.on_user_sync(
self.conn_id, cmd.user_id, cmd.is_syncing, cmd.last_sync_ms
)
def on_REPLICATE(self, cmd):
async def on_REPLICATE(self, cmd):
stream_name = cmd.stream_name
token = cmd.token
@ -449,23 +445,23 @@ class ServerReplicationStreamProtocol(BaseReplicationStreamProtocol):
for stream in iterkeys(self.streamer.streams_by_name)
]
return make_deferred_yieldable(
await make_deferred_yieldable(
defer.gatherResults(deferreds, consumeErrors=True)
)
else:
return self.subscribe_to_stream(stream_name, token)
await self.subscribe_to_stream(stream_name, token)
def on_FEDERATION_ACK(self, cmd):
return self.streamer.federation_ack(cmd.token)
async def on_FEDERATION_ACK(self, cmd):
self.streamer.federation_ack(cmd.token)
def on_REMOVE_PUSHER(self, cmd):
return self.streamer.on_remove_pusher(cmd.app_id, cmd.push_key, cmd.user_id)
async def on_REMOVE_PUSHER(self, cmd):
await self.streamer.on_remove_pusher(cmd.app_id, cmd.push_key, cmd.user_id)
def on_INVALIDATE_CACHE(self, cmd):
return self.streamer.on_invalidate_cache(cmd.cache_func, cmd.keys)
async def on_INVALIDATE_CACHE(self, cmd):
self.streamer.on_invalidate_cache(cmd.cache_func, cmd.keys)
def on_USER_IP(self, cmd):
return self.streamer.on_user_ip(
async def on_USER_IP(self, cmd):
self.streamer.on_user_ip(
cmd.user_id,
cmd.access_token,
cmd.ip,
@ -474,8 +470,7 @@ class ServerReplicationStreamProtocol(BaseReplicationStreamProtocol):
cmd.last_seen,
)
@defer.inlineCallbacks
def subscribe_to_stream(self, stream_name, token):
async def subscribe_to_stream(self, stream_name, token):
"""Subscribe the remote to a stream.
This invloves checking if they've missed anything and sending those
@ -487,7 +482,7 @@ class ServerReplicationStreamProtocol(BaseReplicationStreamProtocol):
try:
# Get missing updates
updates, current_token = yield self.streamer.get_stream_updates(
updates, current_token = await self.streamer.get_stream_updates(
stream_name, token
)
@ -572,7 +567,7 @@ class AbstractReplicationClientHandler(metaclass=abc.ABCMeta):
"""
@abc.abstractmethod
def on_rdata(self, stream_name, token, rows):
async def on_rdata(self, stream_name, token, rows):
"""Called to handle a batch of replication data with a given stream token.
Args:
@ -580,14 +575,11 @@ class AbstractReplicationClientHandler(metaclass=abc.ABCMeta):
token (int): stream token for this batch of rows
rows (list): a list of Stream.ROW_TYPE objects as returned by
Stream.parse_row.
Returns:
Deferred|None
"""
raise NotImplementedError()
@abc.abstractmethod
def on_position(self, stream_name, token):
async def on_position(self, stream_name, token):
"""Called when we get new position data."""
raise NotImplementedError()
@ -676,12 +668,12 @@ class ClientReplicationStreamProtocol(BaseReplicationStreamProtocol):
if not self.streams_connecting:
self.handler.finished_connecting()
def on_SERVER(self, cmd):
async def on_SERVER(self, cmd):
if cmd.data != self.server_name:
logger.error("[%s] Connected to wrong remote: %r", self.id(), cmd.data)
self.send_error("Wrong remote")
def on_RDATA(self, cmd):
async def on_RDATA(self, cmd):
stream_name = cmd.stream_name
inbound_rdata_count.labels(stream_name).inc()
@ -701,19 +693,19 @@ class ClientReplicationStreamProtocol(BaseReplicationStreamProtocol):
# Check if this is the last of a batch of updates
rows = self.pending_batches.pop(stream_name, [])
rows.append(row)
return self.handler.on_rdata(stream_name, cmd.token, rows)
await self.handler.on_rdata(stream_name, cmd.token, rows)
def on_POSITION(self, cmd):
async def on_POSITION(self, cmd):
# When we get a `POSITION` command it means we've finished getting
# missing updates for the given stream, and are now up to date.
self.streams_connecting.discard(cmd.stream_name)
if not self.streams_connecting:
self.handler.finished_connecting()
return self.handler.on_position(cmd.stream_name, cmd.token)
await self.handler.on_position(cmd.stream_name, cmd.token)
def on_SYNC(self, cmd):
return self.handler.on_sync(cmd.data)
async def on_SYNC(self, cmd):
self.handler.on_sync(cmd.data)
def replicate(self, stream_name, token):
"""Send the subscription request to the server

31
synapse/replication/tcp/resource.py
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@ -23,7 +23,6 @@ from six import itervalues
from prometheus_client import Counter
from twisted.internet import defer
from twisted.internet.protocol import Factory
from synapse.metrics import LaterGauge
@ -155,8 +154,7 @@ class ReplicationStreamer(object):
run_as_background_process("replication_notifier", self._run_notifier_loop)
@defer.inlineCallbacks
def _run_notifier_loop(self):
async def _run_notifier_loop(self):
self.is_looping = True
try:
@ -185,7 +183,7 @@ class ReplicationStreamer(object):
continue
if self._replication_torture_level:
yield self.clock.sleep(
await self.clock.sleep(
self._replication_torture_level / 1000.0
)
@ -196,7 +194,7 @@ class ReplicationStreamer(object):
stream.upto_token,
)
try:
updates, current_token = yield stream.get_updates()
updates, current_token = await stream.get_updates()
except Exception:
logger.info("Failed to handle stream %s", stream.NAME)
raise
@ -233,7 +231,7 @@ class ReplicationStreamer(object):
self.is_looping = False
@measure_func("repl.get_stream_updates")
def get_stream_updates(self, stream_name, token):
async def get_stream_updates(self, stream_name, token):
"""For a given stream get all updates since token. This is called when
a client first subscribes to a stream.
"""
@ -241,7 +239,7 @@ class ReplicationStreamer(object):
if not stream:
raise Exception("unknown stream %s", stream_name)
return stream.get_updates_since(token)
return await stream.get_updates_since(token)
@measure_func("repl.federation_ack")
def federation_ack(self, token):
@ -252,22 +250,20 @@ class ReplicationStreamer(object):
self.federation_sender.federation_ack(token)
@measure_func("repl.on_user_sync")
@defer.inlineCallbacks
def on_user_sync(self, conn_id, user_id, is_syncing, last_sync_ms):
async def on_user_sync(self, conn_id, user_id, is_syncing, last_sync_ms):
"""A client has started/stopped syncing on a worker.
"""
user_sync_counter.inc()
yield self.presence_handler.update_external_syncs_row(
await self.presence_handler.update_external_syncs_row(
conn_id, user_id, is_syncing, last_sync_ms
)
@measure_func("repl.on_remove_pusher")
@defer.inlineCallbacks
def on_remove_pusher(self, app_id, push_key, user_id):
async def on_remove_pusher(self, app_id, push_key, user_id):
"""A client has asked us to remove a pusher
"""
remove_pusher_counter.inc()
yield self.store.delete_pusher_by_app_id_pushkey_user_id(
await self.store.delete_pusher_by_app_id_pushkey_user_id(
app_id=app_id, pushkey=push_key, user_id=user_id
)
@ -281,15 +277,16 @@ class ReplicationStreamer(object):
getattr(self.store, cache_func).invalidate(tuple(keys))
@measure_func("repl.on_user_ip")
@defer.inlineCallbacks
def on_user_ip(self, user_id, access_token, ip, user_agent, device_id, last_seen):
async def on_user_ip(
self, user_id, access_token, ip, user_agent, device_id, last_seen
):
"""The client saw a user request
"""
user_ip_cache_counter.inc()
yield self.store.insert_client_ip(
await self.store.insert_client_ip(
user_id, access_token, ip, user_agent, device_id, last_seen
)
yield self._server_notices_sender.on_user_ip(user_id)
await self._server_notices_sender.on_user_ip(user_id)
def send_sync_to_all_connections(self, data):
"""Sends a SYNC command to all clients.

25
synapse/replication/tcp/streams/_base.py
View File

@ -19,8 +19,6 @@ import logging
from collections import namedtuple
from typing import Any
from twisted.internet import defer
logger = logging.getLogger(__name__)
@ -144,8 +142,7 @@ class Stream(object):
self.upto_token = self.current_token()
self.last_token = self.upto_token
@defer.inlineCallbacks
def get_updates(self):
async def get_updates(self):
"""Gets all updates since the last time this function was called (or
since the stream was constructed if it hadn't been called before),
until the `upto_token`
@ -156,13 +153,12 @@ class Stream(object):
list of ``(token, row)`` entries. ``row`` will be json-serialised and
sent over the replication steam.
"""
updates, current_token = yield self.get_updates_since(self.last_token)
updates, current_token = await self.get_updates_since(self.last_token)
self.last_token = current_token
return updates, current_token
@defer.inlineCallbacks
def get_updates_since(self, from_token):
async def get_updates_since(self, from_token):
"""Like get_updates except allows specifying from when we should
stream updates
@ -182,15 +178,16 @@ class Stream(object):
if from_token == current_token:
return [], current_token
logger.info("get_updates_since: %s", self.__class__)
if self._LIMITED:
rows = yield self.update_function(
rows = await self.update_function(
from_token, current_token, limit=MAX_EVENTS_BEHIND + 1
)
# never turn more than MAX_EVENTS_BEHIND + 1 into updates.
rows = itertools.islice(rows, MAX_EVENTS_BEHIND + 1)
else:
rows = yield self.update_function(from_token, current_token)
rows = await self.update_function(from_token, current_token)
updates = [(row[0], row[1:]) for row in rows]
@ -295,9 +292,8 @@ class PushRulesStream(Stream):
push_rules_token, _ = self.store.get_push_rules_stream_token()
return push_rules_token
@defer.inlineCallbacks
def update_function(self, from_token, to_token, limit):
rows = yield self.store.get_all_push_rule_updates(from_token, to_token, limit)
async def update_function(self, from_token, to_token, limit):
rows = await self.store.get_all_push_rule_updates(from_token, to_token, limit)
return [(row[0], row[2]) for row in rows]
@ -413,9 +409,8 @@ class AccountDataStream(Stream):
super(AccountDataStream, self).__init__(hs)
@defer.inlineCallbacks
def update_function(self, from_token, to_token, limit):
global_results, room_results = yield self.store.get_all_updated_account_data(
async def update_function(self, from_token, to_token, limit):
global_results, room_results = await self.store.get_all_updated_account_data(
from_token, from_token, to_token, limit
)

9
synapse/replication/tcp/streams/events.py
View File

@ -19,8 +19,6 @@ from typing import Tuple, Type
import attr
from twisted.internet import defer
from ._base import Stream
@ -122,16 +120,15 @@ class EventsStream(Stream):
super(EventsStream, self).__init__(hs)
@defer.inlineCallbacks
def update_function(self, from_token, current_token, limit=None):
event_rows = yield self._store.get_all_new_forward_event_rows(
async def update_function(self, from_token, current_token, limit=None):
event_rows = await self._store.get_all_new_forward_event_rows(
from_token, current_token, limit
)
event_updates = (
(row[0], EventsStreamEventRow.TypeId, row[1:]) for row in event_rows
)
state_rows = yield self._store.get_all_updated_current_state_deltas(
state_rows = await self._store.get_all_updated_current_state_deltas(
from_token, current_token, limit
)
state_updates = (

2
tests/replication/tcp/streams/_base.py
View File

@ -73,6 +73,6 @@ class TestReplicationClientHandler(object):
def finished_connecting(self):
pass
def on_rdata(self, stream_name, token, rows):
async def on_rdata(self, stream_name, token, rows):
for r in rows:
self.received_rdata_rows.append((stream_name, token, r))