Add cluster request time logging for master (#5347)

config/config.json

@@ -40,7 +40,9 @@
         "AllowEditPost": "always",
         "PostEditTimeLimit": 300,
         "TimeBetweenUserTypingUpdatesMilliseconds": 5000,
-        "EnableUserTypingMessages": true
+        "EnableUserTypingMessages": true,
+        "EnableUserTypingMessages": true,
+        "ClusterLogTimeoutMilliseconds": 2000
     },
     "TeamSettings": {
         "SiteName": "Mattermost",