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-rw-r--r--synapse/storage/databases/main/stats.py13
1 files changed, 12 insertions, 1 deletions
diff --git a/synapse/storage/databases/main/stats.py b/synapse/storage/databases/main/stats.py
index 356d4ca788..0c1cbd540d 100644
--- a/synapse/storage/databases/main/stats.py
+++ b/synapse/storage/databases/main/stats.py
@@ -29,6 +29,7 @@ from synapse.storage.database import (
     LoggingDatabaseConnection,
     LoggingTransaction,
 )
+from synapse.storage.databases.main.events_worker import InvalidEventError
 from synapse.storage.databases.main.state_deltas import StateDeltasStore
 from synapse.types import JsonDict
 from synapse.util.caches.descriptors import cached
@@ -554,7 +555,17 @@ class StatsStore(StateDeltasStore):
             "get_initial_state_for_room", _fetch_current_state_stats
         )
 
-        state_event_map = await self.get_events(event_ids, get_prev_content=False)  # type: ignore[attr-defined]
+        try:
+            state_event_map = await self.get_events(event_ids, get_prev_content=False)  # type: ignore[attr-defined]
+        except InvalidEventError as e:
+            # If an exception occurs fetching events then the room is broken;
+            # skip process it to avoid being stuck on a room.
+            logger.warning(
+                "Failed to fetch events for room %s, skipping stats calculation: %r.",
+                room_id,
+                e,
+            )
+            return
 
         room_state: Dict[str, Union[None, bool, str]] = {
             "join_rules": None,