mirror of
https://mau.dev/maunium/synapse.git
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0e8d78f6aa
Run the handlers for replication commands as background processes. This should improve the visibility in our metrics, and reduce the number of "running db transaction from sentinel context" warnings. Ideally it means converting the things that fire off deferreds into the night into things that actually return a Deferred when they are done. I've made a bit of a stab at this, but it will probably be leaky.
244 lines
8.3 KiB
Python
244 lines
8.3 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import sys
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from twisted.internet import defer, reactor
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from twisted.web.resource import NoResource
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import synapse
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from synapse import events
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from synapse.app import _base
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from synapse.config._base import ConfigError
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from synapse.config.homeserver import HomeServerConfig
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from synapse.config.logger import setup_logging
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from synapse.http.site import SynapseSite
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from synapse.metrics import RegistryProxy
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from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
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from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
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from synapse.replication.slave.storage.events import SlavedEventStore
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from synapse.replication.slave.storage.pushers import SlavedPusherStore
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from synapse.replication.slave.storage.receipts import SlavedReceiptsStore
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from synapse.replication.tcp.client import ReplicationClientHandler
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from synapse.server import HomeServer
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from synapse.storage import DataStore
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from synapse.storage.engines import create_engine
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from synapse.util.httpresourcetree import create_resource_tree
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from synapse.util.logcontext import LoggingContext, run_in_background
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from synapse.util.manhole import manhole
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from synapse.util.versionstring import get_version_string
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logger = logging.getLogger("synapse.app.pusher")
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class PusherSlaveStore(
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SlavedEventStore, SlavedPusherStore, SlavedReceiptsStore,
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SlavedAccountDataStore
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):
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update_pusher_last_stream_ordering_and_success = (
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DataStore.update_pusher_last_stream_ordering_and_success.__func__
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)
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update_pusher_failing_since = (
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DataStore.update_pusher_failing_since.__func__
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)
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update_pusher_last_stream_ordering = (
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DataStore.update_pusher_last_stream_ordering.__func__
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)
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get_throttle_params_by_room = (
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DataStore.get_throttle_params_by_room.__func__
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)
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set_throttle_params = (
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DataStore.set_throttle_params.__func__
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)
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get_time_of_last_push_action_before = (
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DataStore.get_time_of_last_push_action_before.__func__
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)
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get_profile_displayname = (
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DataStore.get_profile_displayname.__func__
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)
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class PusherServer(HomeServer):
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def setup(self):
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logger.info("Setting up.")
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self.datastore = PusherSlaveStore(self.get_db_conn(), self)
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logger.info("Finished setting up.")
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def remove_pusher(self, app_id, push_key, user_id):
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self.get_tcp_replication().send_remove_pusher(app_id, push_key, user_id)
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def _listen_http(self, listener_config):
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port = listener_config["port"]
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bind_addresses = listener_config["bind_addresses"]
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site_tag = listener_config.get("tag", port)
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resources = {}
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for res in listener_config["resources"]:
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for name in res["names"]:
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if name == "metrics":
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resources[METRICS_PREFIX] = MetricsResource(RegistryProxy)
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root_resource = create_resource_tree(resources, NoResource())
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_base.listen_tcp(
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bind_addresses,
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port,
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SynapseSite(
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"synapse.access.http.%s" % (site_tag,),
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site_tag,
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listener_config,
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root_resource,
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self.version_string,
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)
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)
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logger.info("Synapse pusher now listening on port %d", port)
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def start_listening(self, listeners):
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for listener in listeners:
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if listener["type"] == "http":
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self._listen_http(listener)
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elif listener["type"] == "manhole":
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_base.listen_tcp(
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listener["bind_addresses"],
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listener["port"],
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manhole(
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username="matrix",
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password="rabbithole",
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globals={"hs": self},
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)
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)
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elif listener["type"] == "metrics":
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if not self.get_config().enable_metrics:
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logger.warn(("Metrics listener configured, but "
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"enable_metrics is not True!"))
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else:
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_base.listen_metrics(listener["bind_addresses"],
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listener["port"])
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else:
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logger.warn("Unrecognized listener type: %s", listener["type"])
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self.get_tcp_replication().start_replication(self)
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def build_tcp_replication(self):
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return PusherReplicationHandler(self)
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class PusherReplicationHandler(ReplicationClientHandler):
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def __init__(self, hs):
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super(PusherReplicationHandler, self).__init__(hs.get_datastore())
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self.pusher_pool = hs.get_pusherpool()
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@defer.inlineCallbacks
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def on_rdata(self, stream_name, token, rows):
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yield super(PusherReplicationHandler, self).on_rdata(stream_name, token, rows)
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run_in_background(self.poke_pushers, stream_name, token, rows)
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@defer.inlineCallbacks
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def poke_pushers(self, stream_name, token, rows):
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try:
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if stream_name == "pushers":
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for row in rows:
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if row.deleted:
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yield self.stop_pusher(row.user_id, row.app_id, row.pushkey)
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else:
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yield self.start_pusher(row.user_id, row.app_id, row.pushkey)
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elif stream_name == "events":
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yield self.pusher_pool.on_new_notifications(
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token, token,
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)
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elif stream_name == "receipts":
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yield self.pusher_pool.on_new_receipts(
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token, token, set(row.room_id for row in rows)
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)
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except Exception:
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logger.exception("Error poking pushers")
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def stop_pusher(self, user_id, app_id, pushkey):
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key = "%s:%s" % (app_id, pushkey)
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pushers_for_user = self.pusher_pool.pushers.get(user_id, {})
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pusher = pushers_for_user.pop(key, None)
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if pusher is None:
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return
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logger.info("Stopping pusher %r / %r", user_id, key)
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pusher.on_stop()
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def start_pusher(self, user_id, app_id, pushkey):
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key = "%s:%s" % (app_id, pushkey)
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logger.info("Starting pusher %r / %r", user_id, key)
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return self.pusher_pool._refresh_pusher(app_id, pushkey, user_id)
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def start(config_options):
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try:
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config = HomeServerConfig.load_config(
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"Synapse pusher", config_options
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)
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except ConfigError as e:
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sys.stderr.write("\n" + e.message + "\n")
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sys.exit(1)
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assert config.worker_app == "synapse.app.pusher"
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setup_logging(config, use_worker_options=True)
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events.USE_FROZEN_DICTS = config.use_frozen_dicts
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if config.start_pushers:
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sys.stderr.write(
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"\nThe pushers must be disabled in the main synapse process"
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"\nbefore they can be run in a separate worker."
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"\nPlease add ``start_pushers: false`` to the main config"
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"\n"
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)
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sys.exit(1)
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# Force the pushers to start since they will be disabled in the main config
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config.start_pushers = True
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database_engine = create_engine(config.database_config)
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ps = PusherServer(
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config.server_name,
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db_config=config.database_config,
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config=config,
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version_string="Synapse/" + get_version_string(synapse),
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database_engine=database_engine,
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)
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ps.setup()
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ps.start_listening(config.worker_listeners)
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def start():
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ps.get_pusherpool().start()
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ps.get_datastore().start_profiling()
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ps.get_state_handler().start_caching()
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reactor.callWhenRunning(start)
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_base.start_worker_reactor("synapse-pusher", config)
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if __name__ == '__main__':
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with LoggingContext("main"):
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ps = start(sys.argv[1:])
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