diff --git a/changelog.d/4461.bugfix b/changelog.d/4461.bugfix
new file mode 100644
index 0000000000..92062a2bfb
--- /dev/null
+++ b/changelog.d/4461.bugfix
@@ -0,0 +1 @@
+Add a timeout to filtered room directory queries.
\ No newline at end of file
diff --git a/synapse/handlers/room_list.py b/synapse/handlers/room_list.py
index dc88620885..13e212d669 100644
--- a/synapse/handlers/room_list.py
+++ b/synapse/handlers/room_list.py
@@ -73,8 +73,14 @@ class RoomListHandler(BaseHandler):
# We explicitly don't bother caching searches or requests for
# appservice specific lists.
logger.info("Bypassing cache as search request.")
+
+ # XXX: Quick hack to stop room directory queries taking too long.
+ # Timeout request after 60s. Probably want a more fundamental
+ # solution at some point
+ timeout = self.clock.time() + 60
return self._get_public_room_list(
- limit, since_token, search_filter, network_tuple=network_tuple,
+ limit, since_token, search_filter,
+ network_tuple=network_tuple, timeout=timeout,
)
key = (limit, since_token, network_tuple)
@@ -87,7 +93,8 @@ class RoomListHandler(BaseHandler):
@defer.inlineCallbacks
def _get_public_room_list(self, limit=None, since_token=None,
search_filter=None,
- network_tuple=EMPTY_THIRD_PARTY_ID,):
+ network_tuple=EMPTY_THIRD_PARTY_ID,
+ timeout=None,):
if since_token and since_token != "END":
since_token = RoomListNextBatch.from_token(since_token)
else:
@@ -202,6 +209,9 @@ class RoomListHandler(BaseHandler):
chunk = []
for i in range(0, len(rooms_to_scan), step):
+ if timeout and self.clock.time() > timeout:
+ raise Exception("Timed out searching room directory")
+
batch = rooms_to_scan[i:i + step]
logger.info("Processing %i rooms for result", len(batch))
yield concurrently_execute(
|