fix

measurementDataEngine.props

@@ -1,4 +1,4 @@
-db.period = 3600
+db.period = 10
 db.url = jdbc:mysql://localhost/smarthome
 db.driver = com.mysql.jdbc.Driver
 db.user = smarthome

src/main/java/de/hottis/measurementDatabaseEngine/DatabaseEngine.java

@@ -128,6 +128,7 @@ public class DatabaseEngine extends Thread implements ITriggerable {
 			HashMap<String, PreparedStatement> preparedStatements = new HashMap<String, PreparedStatement>();
 			try {
 				int itemCnt = 0;
+                                dbCon = DriverManager.getConnection(dbUrl, dbUsername, dbPassword);
 				
 				while (true) {
 					try {
@@ -136,7 +137,6 @@ public class DatabaseEngine extends Thread implements ITriggerable {
 							logger.warn("DatabaseEngine found no data");
 							break;
 						}
-						dbCon = DriverManager.getConnection(dbUrl, dbUsername, dbPassword);
 
 						String key = ado.getClass().getName();
 						PreparedStatement pstmt;