Merge pull request #2109 from matrix-org/erikj/send_queue_fix
Fix up federation SendQueue and document types
This commit is contained in:
Erik Johnston
GitHub
commit
efcb6db688
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@ -23,7 +23,6 @@ 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.federation.units import Edu
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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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@ -33,7 +32,6 @@ 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.storage.presence import UserPresenceState
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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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@ -277,69 +275,7 @@ class FederationSenderHandler(object):
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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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# The federation stream containis a bunch of different types of
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# rows that need to be handled differently. We parse the rows, put
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# them into the appropriate collection and then send them off.
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presence_to_send = {}
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keyed_edus = {}
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edus = {}
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failures = {}
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device_destinations = set()
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# Parse the rows in the stream
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for row in rows:
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typ = row.type
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content = row.data
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if typ == send_queue.PRESENCE_TYPE:
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destination = content["destination"]
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state = UserPresenceState.from_dict(content["state"])
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presence_to_send.setdefault(destination, []).append(state)
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elif typ == send_queue.KEYED_EDU_TYPE:
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key = content["key"]
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edu = Edu(**content["edu"])
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keyed_edus.setdefault(
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edu.destination, {}
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)[(edu.destination, tuple(key))] = edu
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elif typ == send_queue.EDU_TYPE:
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edu = Edu(**content)
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edus.setdefault(edu.destination, []).append(edu)
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elif typ == send_queue.FAILURE_TYPE:
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destination = content["destination"]
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failure = content["failure"]
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failures.setdefault(destination, []).append(failure)
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elif typ == send_queue.DEVICE_MESSAGE_TYPE:
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device_destinations.add(content["destination"])
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else:
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raise Exception("Unrecognised federation type: %r", typ)
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# We've finished collecting, send everything off
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for destination, states in presence_to_send.items():
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self.federation_sender.send_presence(destination, states)
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for destination, edu_map in keyed_edus.items():
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for key, edu in edu_map.items():
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self.federation_sender.send_edu(
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edu.destination, edu.edu_type, edu.content, key=key,
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)
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for destination, edu_list in edus.items():
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for edu in edu_list:
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self.federation_sender.send_edu(
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edu.destination, edu.edu_type, edu.content, key=None,
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)
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for destination, failure_list in failures.items():
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for failure in failure_list:
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self.federation_sender.send_failure(destination, failure)
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for destination in device_destinations:
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self.federation_sender.send_device_messages(destination)
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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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@ -31,22 +31,21 @@ Events are replicated via a separate events stream.
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from .units import Edu
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from synapse.storage.presence import UserPresenceState
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from synapse.util.metrics import Measure
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import synapse.metrics
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from blist import sorteddict
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from collections import namedtuple
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import logging
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logger = logging.getLogger(__name__)
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metrics = synapse.metrics.get_metrics_for(__name__)
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PRESENCE_TYPE = "p"
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KEYED_EDU_TYPE = "k"
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EDU_TYPE = "e"
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FAILURE_TYPE = "f"
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DEVICE_MESSAGE_TYPE = "d"
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class FederationRemoteSendQueue(object):
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"""A drop in replacement for TransactionQueue"""
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@ -239,6 +238,8 @@ class FederationRemoteSendQueue(object):
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if from_token > self.pos:
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from_token = -1
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# list of tuple(int, BaseFederationRow), where the first is the position
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# of the federation stream.
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rows = []
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# There should be only one reader, so lets delete everything its
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@ -257,10 +258,10 @@ class FederationRemoteSendQueue(object):
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)
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for (key, (dest, user_id)) in dest_user_ids:
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rows.append((key, PRESENCE_TYPE, {
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"destination": dest,
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"state": self.presence_map[user_id].as_dict(),
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}))
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rows.append((key, PresenceRow(
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destination=dest,
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state=self.presence_map[user_id],
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)))
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# Fetch changes keyed edus
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keys = self.keyed_edu_changed.keys()
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@ -269,12 +270,10 @@ class FederationRemoteSendQueue(object):
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keyed_edus = set((k, self.keyed_edu_changed[k]) for k in keys[i:j])
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for (pos, (destination, edu_key)) in keyed_edus:
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rows.append(
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(pos, KEYED_EDU_TYPE, {
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"key": edu_key,
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"edu": self.keyed_edu[(destination, edu_key)].get_internal_dict(),
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})
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)
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rows.append((pos, KeyedEduRow(
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key=edu_key,
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edu=self.keyed_edu[(destination, edu_key)],
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)))
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# Fetch changed edus
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keys = self.edus.keys()
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@ -283,7 +282,7 @@ class FederationRemoteSendQueue(object):
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edus = set((k, self.edus[k]) for k in keys[i:j])
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for (pos, edu) in edus:
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rows.append((pos, EDU_TYPE, edu.get_internal_dict()))
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rows.append((pos, EduRow(edu)))
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# Fetch changed failures
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keys = self.failures.keys()
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@ -292,10 +291,10 @@ class FederationRemoteSendQueue(object):
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failures = set((k, self.failures[k]) for k in keys[i:j])
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for (pos, (destination, failure)) in failures:
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rows.append((pos, FAILURE_TYPE, {
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"destination": destination,
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"failure": failure,
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}))
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rows.append((pos, FailureRow(
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destination=destination,
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failure=failure,
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)))
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# Fetch changed device messages
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keys = self.device_messages.keys()
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@ -304,11 +303,229 @@ class FederationRemoteSendQueue(object):
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device_messages = set((k, self.device_messages[k]) for k in keys[i:j])
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for (pos, destination) in device_messages:
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rows.append((pos, DEVICE_MESSAGE_TYPE, {
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"destination": destination,
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}))
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rows.append((pos, DeviceRow(
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destination=destination,
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)))
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# Sort rows based on pos
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rows.sort()
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return rows
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return [(pos, row.TypeId, row.to_data()) for pos, row in rows]
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class BaseFederationRow(object):
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"""Base class for rows to be sent in the federation stream.
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Specifies how to identify, serialize and deserialize the different types.
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"""
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TypeId = None # Unique string that ids the type. Must be overriden in sub classes.
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@staticmethod
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def from_data(data):
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"""Parse the data from the federation stream into a row.
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Args:
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data: The value of ``data`` from FederationStreamRow.data, type
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depends on the type of stream
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"""
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raise NotImplementedError()
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def to_data(self):
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"""Serialize this row to be sent over the federation stream.
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Returns:
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The value to be sent in FederationStreamRow.data. The type depends
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on the type of stream.
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"""
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raise NotImplementedError()
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def add_to_buffer(self, buff):
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"""Add this row to the appropriate field in the buffer ready for this
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to be sent over federation.
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We use a buffer so that we can batch up events that have come in at
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the same time and send them all at once.
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Args:
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buff (BufferedToSend)
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"""
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raise NotImplementedError()
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class PresenceRow(BaseFederationRow, namedtuple("PresenceRow", (
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"destination", # str
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"state", # UserPresenceState
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))):
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TypeId = "p"
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@staticmethod
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def from_data(data):
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return PresenceRow(
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destination=data["destination"],
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state=UserPresenceState.from_dict(data["state"])
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)
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def to_data(self):
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return {
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"destination": self.destination,
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"state": self.state.as_dict()
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}
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def add_to_buffer(self, buff):
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buff.presence.setdefault(self.destination, []).append(self.state)
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class KeyedEduRow(BaseFederationRow, namedtuple("KeyedEduRow", (
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"key", # tuple(str) - the edu key passed to send_edu
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"edu", # Edu
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))):
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TypeId = "k"
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@staticmethod
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def from_data(data):
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return KeyedEduRow(
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key=tuple(data["key"]),
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edu=Edu(**data["edu"]),
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)
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def to_data(self):
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return {
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"key": self.key,
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"edu": self.edu.get_internal_dict(),
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}
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def add_to_buffer(self, buff):
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buff.keyed_edus.setdefault(
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self.edu.destination, {}
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)[self.key] = self.edu
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class EduRow(BaseFederationRow, namedtuple("EduRow", (
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"edu", # Edu
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))):
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TypeId = "e"
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@staticmethod
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def from_data(data):
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return EduRow(Edu(**data))
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def to_data(self):
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return self.edu.get_internal_dict()
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def add_to_buffer(self, buff):
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buff.edus.setdefault(self.edu.destination, []).append(self.edu)
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class FailureRow(BaseFederationRow, namedtuple("FailureRow", (
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"destination", # str
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"failure",
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))):
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TypeId = "f"
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@staticmethod
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def from_data(data):
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return FailureRow(
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destination=data["destination"],
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failure=data["failure"],
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)
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def to_data(self):
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return {
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"destination": self.destination,
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"failure": self.failure,
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}
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def add_to_buffer(self, buff):
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buff.failures.setdefault(self.destination, []).append(self.failure)
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class DeviceRow(BaseFederationRow, namedtuple("DeviceRow", (
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"destination", # str
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))):
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TypeId = "d"
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@staticmethod
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def from_data(data):
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return DeviceRow(destination=data["destination"])
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def to_data(self):
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return {"destination": self.destination}
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def add_to_buffer(self, buff):
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buff.device_destinations.add(self.destination)
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TypeToRow = {
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Row.TypeId: Row
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for Row in (
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PresenceRow,
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KeyedEduRow,
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EduRow,
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FailureRow,
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DeviceRow,
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)
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}
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ParsedFederationStreamData = namedtuple("ParsedFederationStreamData", (
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"presence", # dict of destination -> [UserPresenceState]
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"keyed_edus", # dict of destination -> { key -> Edu }
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"edus", # dict of destination -> [Edu]
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"failures", # dict of destination -> [failures]
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"device_destinations", # set of destinations
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))
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def process_rows_for_federation(transaction_queue, rows):
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"""Parse a list of rows from the federation stream and put them in the
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transaction queue ready for sending to the relevant homeservers.
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Args:
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transaction_queue (TransactionQueue)
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rows (list(synapse.replication.tcp.streams.FederationStreamRow))
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"""
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# The federation stream contains a bunch of different types of
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# rows that need to be handled differently. We parse the rows, put
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# them into the appropriate collection and then send them off.
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buff = ParsedFederationStreamData(
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presence={},
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keyed_edus={},
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edus={},
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failures={},
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device_destinations=set(),
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)
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# Parse the rows in the stream and add to the buffer
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for row in rows:
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if row.type not in TypeToRow:
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logger.error("Unrecognized federation row type %r", row.type)
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continue
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RowType = TypeToRow[row.type]
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parsed_row = RowType.from_data(row.data)
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parsed_row.add_to_buffer(buff)
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for destination, states in buff.presence.iteritems():
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transaction_queue.send_presence(destination, states)
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for destination, edu_map in buff.keyed_edus.iteritems():
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for key, edu in edu_map.items():
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transaction_queue.send_edu(
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edu.destination, edu.edu_type, edu.content, key=key,
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)
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for destination, edu_list in buff.edus.iteritems():
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for edu in edu_list:
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transaction_queue.send_edu(
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edu.destination, edu.edu_type, edu.content, key=None,
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)
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for destination, failure_list in buff.failures.iteritems():
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for failure in failure_list:
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transaction_queue.send_failure(destination, failure)
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for destination in buff.device_destinations:
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transaction_queue.send_device_messages(destination)
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@ -98,8 +98,8 @@ ToDeviceStreamRow = namedtuple("ToDeviceStreamRow", (
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"entity", # str
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))
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FederationStreamRow = namedtuple("FederationStreamRow", (
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"type", # str
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"data", # dict
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"type", # str, the type of data as defined in the BaseFederationRows
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"data", # dict, serialization of a federation.send_queue.BaseFederationRow
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))
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TagAccountDataStreamRow = namedtuple("TagAccountDataStreamRow", (
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"user_id", # str
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