Error 500: com.ibm.websphere.ce.cm.StaleConnectionException: [jcc][t4][2043][11550][3.58.81] Exception java.net.ConnectException: Error opening socket to server mdadb/10.74.20.16 on port 50,000 with message: Connection refused: connect. ERRORCODE=-4499, SQLSTATE=08001DSRA0010E: SQL State = 08001, Error Code = -4,499