306 lines
11 KiB
Python
306 lines
11 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 synapse
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from synapse.server import HomeServer
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from synapse.config._base import ConfigError
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from synapse.config.logger import setup_logging
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from synapse.config.homeserver import HomeServerConfig
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from synapse.crypto import context_factory
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from synapse.http.site import SynapseSite
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from synapse.federation import send_queue
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from synapse.metrics.resource import MetricsResource, METRICS_PREFIX
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from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore
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from synapse.replication.slave.storage.events import SlavedEventStore
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from synapse.replication.slave.storage.receipts import SlavedReceiptsStore
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from synapse.replication.slave.storage.registration import SlavedRegistrationStore
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from synapse.replication.slave.storage.presence import SlavedPresenceStore
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from synapse.replication.slave.storage.transactions import TransactionStore
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from synapse.replication.slave.storage.devices import SlavedDeviceStore
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from synapse.replication.tcp.client import ReplicationClientHandler
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from synapse.storage.engines import create_engine
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from synapse.util.async import Linearizer
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from synapse.util.httpresourcetree import create_resource_tree
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from synapse.util.logcontext import LoggingContext, PreserveLoggingContext, preserve_fn
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from synapse.util.manhole import manhole
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from synapse.util.rlimit import change_resource_limit
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from synapse.util.versionstring import get_version_string
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from synapse import events
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from twisted.internet import reactor, defer
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from twisted.web.resource import Resource
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from daemonize import Daemonize
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import sys
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import logging
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import gc
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logger = logging.getLogger("synapse.app.federation_sender")
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class FederationSenderSlaveStore(
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SlavedDeviceInboxStore, TransactionStore, SlavedReceiptsStore, SlavedEventStore,
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SlavedRegistrationStore, SlavedDeviceStore, SlavedPresenceStore,
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):
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def __init__(self, db_conn, hs):
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super(FederationSenderSlaveStore, self).__init__(db_conn, hs)
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# We pull out the current federation stream position now so that we
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# always have a known value for the federation position in memory so
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# that we don't have to bounce via a deferred once when we start the
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# replication streams.
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self.federation_out_pos_startup = self._get_federation_out_pos(db_conn)
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def _get_federation_out_pos(self, db_conn):
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sql = (
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"SELECT stream_id FROM federation_stream_position"
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" WHERE type = ?"
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)
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sql = self.database_engine.convert_param_style(sql)
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txn = db_conn.cursor()
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txn.execute(sql, ("federation",))
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rows = txn.fetchall()
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txn.close()
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return rows[0][0] if rows else -1
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class FederationSenderServer(HomeServer):
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def get_db_conn(self, run_new_connection=True):
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# Any param beginning with cp_ is a parameter for adbapi, and should
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# not be passed to the database engine.
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db_params = {
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k: v for k, v in self.db_config.get("args", {}).items()
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if not k.startswith("cp_")
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}
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db_conn = self.database_engine.module.connect(**db_params)
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if run_new_connection:
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self.database_engine.on_new_connection(db_conn)
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return db_conn
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def setup(self):
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logger.info("Setting up.")
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self.datastore = FederationSenderSlaveStore(self.get_db_conn(), self)
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logger.info("Finished setting up.")
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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(self)
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root_resource = create_resource_tree(resources, Resource())
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for address in bind_addresses:
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reactor.listenTCP(
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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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),
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interface=address
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)
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logger.info("Synapse federation_sender 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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bind_addresses = listener["bind_addresses"]
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for address in bind_addresses:
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reactor.listenTCP(
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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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interface=address
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)
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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 FederationSenderReplicationHandler(self)
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class FederationSenderReplicationHandler(ReplicationClientHandler):
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def __init__(self, hs):
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super(FederationSenderReplicationHandler, self).__init__(hs.get_datastore())
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self.send_handler = FederationSenderHandler(hs, self)
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def on_rdata(self, stream_name, token, rows):
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super(FederationSenderReplicationHandler, self).on_rdata(
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stream_name, token, rows
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)
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self.send_handler.process_replication_rows(stream_name, token, rows)
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def get_streams_to_replicate(self):
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args = super(FederationSenderReplicationHandler, self).get_streams_to_replicate()
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args.update(self.send_handler.stream_positions())
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return args
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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 federation sender", 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.federation_sender"
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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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database_engine = create_engine(config.database_config)
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if config.send_federation:
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sys.stderr.write(
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"\nThe send_federation 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 ``send_federation: 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.send_federation = True
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tls_server_context_factory = context_factory.ServerContextFactory(config)
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ps = FederationSenderServer(
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config.server_name,
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db_config=config.database_config,
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tls_server_context_factory=tls_server_context_factory,
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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 run():
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# make sure that we run the reactor with the sentinel log context,
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# otherwise other PreserveLoggingContext instances will get confused
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# and complain when they see the logcontext arbitrarily swapping
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# between the sentinel and `run` logcontexts.
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with PreserveLoggingContext():
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logger.info("Running")
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change_resource_limit(config.soft_file_limit)
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if config.gc_thresholds:
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gc.set_threshold(*config.gc_thresholds)
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reactor.run()
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def 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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if config.worker_daemonize:
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daemon = Daemonize(
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app="synapse-federation-sender",
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pid=config.worker_pid_file,
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action=run,
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auto_close_fds=False,
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verbose=True,
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logger=logger,
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)
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daemon.start()
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else:
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run()
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class FederationSenderHandler(object):
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"""Processes the replication stream and forwards the appropriate entries
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to the federation sender.
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"""
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def __init__(self, hs, replication_client):
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self.store = hs.get_datastore()
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self.federation_sender = hs.get_federation_sender()
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self.replication_client = replication_client
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self.federation_position = self.store.federation_out_pos_startup
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self._fed_position_linearizer = Linearizer(name="_fed_position_linearizer")
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self._last_ack = self.federation_position
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self._room_serials = {}
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self._room_typing = {}
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def on_start(self):
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# There may be some events that are persisted but haven't been sent,
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# so send them now.
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self.federation_sender.notify_new_events(
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self.store.get_room_max_stream_ordering()
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)
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def stream_positions(self):
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return {"federation": self.federation_position}
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def process_replication_rows(self, stream_name, token, rows):
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# The federation stream contains things that we want to send out, e.g.
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# presence, typing, etc.
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if stream_name == "federation":
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send_queue.process_rows_for_federation(self.federation_sender, rows)
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preserve_fn(self.update_token)(token)
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# We also need to poke the federation sender when new events happen
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elif stream_name == "events":
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self.federation_sender.notify_new_events(token)
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@defer.inlineCallbacks
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def update_token(self, token):
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self.federation_position = token
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# We linearize here to ensure we don't have races updating the token
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with (yield self._fed_position_linearizer.queue(None)):
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if self._last_ack < self.federation_position:
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yield self.store.update_federation_out_pos(
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"federation", self.federation_position
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)
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# We ACK this token over replication so that the master can drop
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# its in memory queues
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self.replication_client.send_federation_ack(self.federation_position)
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self._last_ack = self.federation_position
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if __name__ == '__main__':
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with LoggingContext("main"):
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start(sys.argv[1:])
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