Disable statement timeout during room purge (#18017)

This is already done for `purge_history` but seems to have been forgotten for `purge_room`.
2024-12-26 17:36:27 +00:00 · 2024-12-19 14:02:06 +00:00 · 2024-12-19 14:02:06 +00:00 · 234d07eb09
parent bd9a1079bc
commit 234d07eb09
2 changed files with 6 additions and 0 deletions
--- a/changelog.d/18017.misc
+++ b/changelog.d/18017.misc
@ -0,0 +1 @@
+Disable DB statement timeout when doing a purge room since it can be quite long.
--- a/synapse/storage/databases/main/purge_events.py
+++ b/synapse/storage/databases/main/purge_events.py
@ -376,6 +376,11 @@ class PurgeEventsStore(StateGroupWorkerStore, CacheInvalidationWorkerStore):
                (room_id,),
            )

+        if isinstance(self.database_engine, PostgresEngine):
+            # Disable statement timeouts for this transaction; purging rooms can
+            # take a while!
+            txn.execute("SET LOCAL statement_timeout = 0")
+
        # First, fetch all the state groups that should be deleted, before
        # we delete that information.
        txn.execute(
				`@ -0,0 +1 @@`
				`Disable DB statement timeout when doing a purge room since it can be quite long.`