2 files changed, 3 insertions, 1 deletions
diff --git a/synapse/config/_base.py b/synapse/config/_base.py
index d01235d31f..1a6784a714 100644
--- a/synapse/config/_base.py
+++ b/synapse/config/_base.py
@@ -182,6 +182,8 @@ class Config(object):
                             ) % (entry_path, )
                             continue
 
+                        files.add(config_path)
+
                     config_files.extend(sorted(files))
                 else:
                     config_files.append(config_path)
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index ce71389f02..495ef087c9 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -167,7 +167,7 @@ class SQLBaseStore(object):
         self._get_event_cache = Cache("*getEvent*", keylen=3, lru=True,
                                       max_entries=hs.config.event_cache_size)
 
-        self._state_group_cache = DictionaryCache("*stateGroupCache*", 100000)
+        self._state_group_cache = DictionaryCache("*stateGroupCache*", 2000)
 
         self._event_fetch_lock = threading.Condition()
         self._event_fetch_list = []