server/AyaNova/util/DbUtil.cs

@@ -202,10 +202,34 @@ namespace AyaNova.Util
                 return false;
             }
             return true;
-
         }
 
-
+        ///////////////////////////////////////////////
+        // Set global flag if db server is connectable
+        //
+        internal static void CheckDatabaseServerAvailable()
+        {
+            //Called by generator when db is down to check if it can connect
+            //should not run too quickly or too often so a delay is built in here
+            if (DateTime.UtcNow - LAST_CHECK_IF_DB_SERVER_AVAILABLE < CHECK_IF_DB_SERVER_AVAILABLE_DELAY)//no more often than every 10 seconds
+                return;
+            try
+            {
+                using (var conn = new Npgsql.NpgsqlConnection(AdminConnectionString))
+                {
+                    conn.Open();
+                    conn.Close();
+                }
+            }
+            catch
+            {
+                return;
+            }
+            //We have db available
+            ServerGlobalOpsSettingsCache.DBAVAILABLE = true;
+        }
+        private static DateTime LAST_CHECK_IF_DB_SERVER_AVAILABLE = DateTime.MinValue;
+        private static TimeSpan CHECK_IF_DB_SERVER_AVAILABLE_DELAY = new TimeSpan(0, 0, 10);
 
 
         ///////////////////////////////////////////