diff --git a/MP.IOC/appsettings.json b/MP.IOC/appsettings.json
index c8d6a060..96dc0430 100644
--- a/MP.IOC/appsettings.json
+++ b/MP.IOC/appsettings.json
@@ -74,7 +74,7 @@
     "MetricFlushIntervalSeconds": 60,
     "DefaultWeightOld": 100,
     "DefaultWeightNew": 0,
-    "DeleteExpiredMetrics": true
+    "DeleteExpiredMetrics": false
   },
   "ServerConf": {
     "BaseUrl": "/MP/IOC/",