diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index 819e8f7331..4efe95faa4 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -507,19 +507,19 @@ class FederationServer(FederationBase):
@defer.inlineCallbacks
@log_function
def on_get_missing_events(self, origin, room_id, earliest_events,
- latest_events, limit, min_depth):
+ latest_events, limit):
with (yield self._server_linearizer.queue((origin, room_id))):
origin_host, _ = parse_server_name(origin)
yield self.check_server_matches_acl(origin_host, room_id)
logger.info(
"on_get_missing_events: earliest_events: %r, latest_events: %r,"
- " limit: %d, min_depth: %d",
- earliest_events, latest_events, limit, min_depth
+ " limit: %d",
+ earliest_events, latest_events, limit,
)
missing_events = yield self.handler.on_get_missing_events(
- origin, room_id, earliest_events, latest_events, limit, min_depth
+ origin, room_id, earliest_events, latest_events, limit,
)
if len(missing_events) < 5:
diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py
index 2f874b4838..7288d49074 100644
--- a/synapse/federation/transport/server.py
+++ b/synapse/federation/transport/server.py
@@ -560,7 +560,6 @@ class FederationGetMissingEventsServlet(BaseFederationServlet):
@defer.inlineCallbacks
def on_POST(self, origin, content, query, room_id):
limit = int(content.get("limit", 10))
- min_depth = int(content.get("min_depth", 0))
earliest_events = content.get("earliest_events", [])
latest_events = content.get("latest_events", [])
@@ -569,7 +568,6 @@ class FederationGetMissingEventsServlet(BaseFederationServlet):
room_id=room_id,
earliest_events=earliest_events,
latest_events=latest_events,
- min_depth=min_depth,
limit=limit,
)
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 45d955e6f5..cab57a8849 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -309,8 +309,8 @@ class FederationHandler(BaseHandler):
if sent_to_us_directly:
logger.warn(
- "[%s %s] Failed to fetch %d prev events: rejecting",
- room_id, event_id, len(prevs - seen),
+ "[%s %s] Rejecting: failed to fetch %d prev events: %s",
+ room_id, event_id, len(prevs - seen), shortstr(prevs - seen)
)
raise FederationError(
"ERROR",
@@ -452,8 +452,8 @@ class FederationHandler(BaseHandler):
latest |= seen
logger.info(
- "[%s %s]: Requesting %d prev_events: %s",
- room_id, event_id, len(prevs - seen), shortstr(prevs - seen)
+ "[%s %s]: Requesting missing events between %s and %s",
+ room_id, event_id, shortstr(latest), event_id,
)
# XXX: we set timeout to 10s to help workaround
@@ -1852,7 +1852,7 @@ class FederationHandler(BaseHandler):
@defer.inlineCallbacks
def on_get_missing_events(self, origin, room_id, earliest_events,
- latest_events, limit, min_depth):
+ latest_events, limit):
in_room = yield self.auth.check_host_in_room(
room_id,
origin
@@ -1861,14 +1861,12 @@ class FederationHandler(BaseHandler):
raise AuthError(403, "Host not in room.")
limit = min(limit, 20)
- min_depth = max(min_depth, 0)
missing_events = yield self.store.get_missing_events(
room_id=room_id,
earliest_events=earliest_events,
latest_events=latest_events,
limit=limit,
- min_depth=min_depth,
)
missing_events = yield filter_events_for_server(
diff --git a/synapse/storage/event_federation.py b/synapse/storage/event_federation.py
index 24345b20a6..3faca2a042 100644
--- a/synapse/storage/event_federation.py
+++ b/synapse/storage/event_federation.py
@@ -376,33 +376,25 @@ class EventFederationWorkerStore(EventsWorkerStore, SignatureWorkerStore,
@defer.inlineCallbacks
def get_missing_events(self, room_id, earliest_events, latest_events,
- limit, min_depth):
+ limit):
ids = yield self.runInteraction(
"get_missing_events",
self._get_missing_events,
- room_id, earliest_events, latest_events, limit, min_depth
+ room_id, earliest_events, latest_events, limit,
)
-
events = yield self._get_events(ids)
-
- events = sorted(
- [ev for ev in events if ev.depth >= min_depth],
- key=lambda e: e.depth,
- )
-
- defer.returnValue(events[:limit])
+ defer.returnValue(events)
def _get_missing_events(self, txn, room_id, earliest_events, latest_events,
- limit, min_depth):
-
- earliest_events = set(earliest_events)
- front = set(latest_events) - earliest_events
+ limit):
- event_results = set()
+ seen_events = set(earliest_events)
+ front = set(latest_events) - seen_events
+ event_results = []
query = (
"SELECT prev_event_id FROM event_edges "
- "WHERE event_id = ? AND is_state = ? "
+ "WHERE room_id = ? AND event_id = ? AND is_state = ? "
"LIMIT ?"
)
@@ -411,18 +403,20 @@ class EventFederationWorkerStore(EventsWorkerStore, SignatureWorkerStore,
for event_id in front:
txn.execute(
query,
- (event_id, False, limit - len(event_results))
+ (room_id, event_id, False, limit - len(event_results))
)
- for e_id, in txn:
- new_front.add(e_id)
+ new_results = set(t[0] for t in txn) - seen_events
- new_front -= earliest_events
- new_front -= event_results
+ new_front |= new_results
+ seen_events |= new_results
+ event_results.extend(new_results)
front = new_front
- event_results |= new_front
+ # we built the list working backwards from latest_events; we now need to
+ # reverse it so that the events are approximately chronological.
+ event_results.reverse()
return event_results
|
