From 0708f437ccfb57fe44e2d993f57163a844fe726c Mon Sep 17 00:00:00 2001
From: Will Hunt <will@half-shot.uk>
Date: Mon, 24 Dec 2018 09:49:42 +0000
Subject: [PATCH] Log roomid along with Unknown room (#4297)

---
 changelog.d/4297.misc    | 1 +
 synapse/storage/state.py | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)
 create mode 100644 changelog.d/4297.misc

diff --git a/changelog.d/4297.misc b/changelog.d/4297.misc
new file mode 100644
index 0000000000..63106e26f6
--- /dev/null
+++ b/changelog.d/4297.misc
@@ -0,0 +1 @@
+Log room_id in Unknown room errors
diff --git a/synapse/storage/state.py b/synapse/storage/state.py
index d737bd6778..a134e9b3e8 100644
--- a/synapse/storage/state.py
+++ b/synapse/storage/state.py
@@ -432,7 +432,7 @@ class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore):
         create_id = state_ids.get((EventTypes.Create, ""))
 
         if not create_id:
-            raise NotFoundError("Unknown room")
+            raise NotFoundError("Unknown room %s" % (room_id))
 
         create_event = yield self.get_event(create_id)
         defer.returnValue(create_event.content.get("room_version", "1"))
-- 
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