forked from MirrorHub/synapse
Actually fetch state for new backwards extremeties when backfilling.
This commit is contained in:
Erik Johnston
parent
9084cdd70f
commit
20814fabdd
2 changed files with 108 additions and 62 deletions
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@ -168,7 +168,11 @@ class FederationClient(FederationBase):
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for i, pdu in enumerate(pdus):
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pdus[i] = yield self._check_sigs_and_hash(pdu)
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# FIXME: We should handle signature failures more gracefully.
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# FIXME: We should handle signature failures more gracefully.
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pdus[:] = yield defer.gatherResults(
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[self._check_sigs_and_hash(pdu) for pdu in pdus],
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consumeErrors=True,
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).addErrback(unwrapFirstError)
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defer.returnValue(pdus)
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@ -230,27 +230,65 @@ class FederationHandler(BaseHandler):
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if not extremities:
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extremities = yield self.store.get_oldest_events_in_room(room_id)
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pdus = yield self.replication_layer.backfill(
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events = yield self.replication_layer.backfill(
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dest,
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room_id,
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limit,
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limit=limit,
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extremities=extremities,
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)
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events = []
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event_map = {e.event_id: e for e in events}
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for pdu in pdus:
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event = pdu
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event_ids = set(e.event_id for e in events)
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# FIXME (erikj): Not sure this actually works :/
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context = yield self.state_handler.compute_event_context(event)
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edges = [
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ev.event_id
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for ev in events
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if set(e_id for e_id, _ in ev.prev_events) - event_ids
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]
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events.append((event, context))
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# For each edge get the current state.
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yield self.store.persist_event(
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event,
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context=context,
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backfilled=True
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auth_events = {}
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events_to_state = {}
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for e_id in edges:
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state, auth = yield self.replication_layer.get_state_for_room(
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destination=dest,
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room_id=room_id,
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event_id=e_id
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)
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auth_events.update({a.event_id: a for a in auth})
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events_to_state[e_id] = state
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yield defer.gatherResults(
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[
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self._handle_new_event(dest, a)
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for a in auth_events.values()
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],
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consumeErrors=True,
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).addErrback(unwrapFirstError)
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yield defer.gatherResults(
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[
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self._handle_new_event(
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dest, event_map[e_id],
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state=events_to_state[e_id],
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backfilled=True,
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)
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for e_id in events_to_state
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],
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consumeErrors=True
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).addErrback(unwrapFirstError)
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events.sort(key=lambda e: e.depth)
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for event in events:
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if event in events_to_state:
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continue
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yield self._handle_new_event(
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dest, event,
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backfilled=True,
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)
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defer.returnValue(events)
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@ -347,7 +385,7 @@ class FederationHandler(BaseHandler):
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logger.info(e.message)
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continue
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except Exception as e:
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logger.warn(
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logger.exception(
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"Failed to backfill from %s because %s",
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dom, e,
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)
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@ -517,54 +555,9 @@ class FederationHandler(BaseHandler):
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# FIXME
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pass
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auth_ids_to_deferred = {}
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def process_auth_ev(ev):
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auth_ids = [e_id for e_id, _ in ev.auth_events]
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prev_ds = [
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auth_ids_to_deferred[i]
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for i in auth_ids
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if i in auth_ids_to_deferred
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]
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d = defer.Deferred()
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auth_ids_to_deferred[ev.event_id] = d
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@defer.inlineCallbacks
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def f(*_):
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ev.internal_metadata.outlier = True
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try:
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auth = {
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(e.type, e.state_key): e for e in auth_chain
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if e.event_id in auth_ids
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}
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yield self._handle_new_event(
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origin, ev, auth_events=auth
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)
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except:
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logger.exception(
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"Failed to handle auth event %s",
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ev.event_id,
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)
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d.callback(None)
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if prev_ds:
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dx = defer.DeferredList(prev_ds)
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dx.addBoth(f)
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else:
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f()
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for e in auth_chain:
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if e.event_id == event.event_id:
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return
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process_auth_ev(e)
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yield defer.DeferredList(auth_ids_to_deferred.values())
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yield self._handle_auth_events(
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origin, [e for e in auth_chain if e.event_id != event.event_id]
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)
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@defer.inlineCallbacks
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def handle_state(e):
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@ -1348,3 +1341,52 @@ class FederationHandler(BaseHandler):
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},
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"missing": [e.event_id for e in missing_locals],
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})
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@defer.inlineCallbacks
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def _handle_auth_events(self, origin, auth_events):
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auth_ids_to_deferred = {}
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def process_auth_ev(ev):
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auth_ids = [e_id for e_id, _ in ev.auth_events]
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prev_ds = [
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auth_ids_to_deferred[i]
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for i in auth_ids
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if i in auth_ids_to_deferred
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]
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d = defer.Deferred()
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auth_ids_to_deferred[ev.event_id] = d
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@defer.inlineCallbacks
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def f(*_):
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ev.internal_metadata.outlier = True
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try:
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auth = {
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(e.type, e.state_key): e for e in auth_events
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if e.event_id in auth_ids
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}
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yield self._handle_new_event(
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origin, ev, auth_events=auth
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)
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except:
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logger.exception(
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"Failed to handle auth event %s",
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ev.event_id,
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)
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d.callback(None)
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if prev_ds:
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dx = defer.DeferredList(prev_ds)
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dx.addBoth(f)
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else:
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f()
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for e in auth_events:
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process_auth_ev(e)
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yield defer.DeferredList(auth_ids_to_deferred.values())
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