The following error occurs because the port is not open on the server (hhudb), which means I cannot connect to the DB that resides on the server. There are multiple commands to use in order to help you figure out if your port is not open:
netstat -an| grep 50000 netstat -an| grep LISTEN|grep ^tcp telnet hhudb 50000
The error originally received:
The test connection operation failed for data source mcshh01 on server dmgr at node Dmgr with the following exception: java.sql.SQLNonTransientException: [jcc][t4][4.11.69] Exception java.net.ConnectException: Error opening socket to server HHUDB/10.40.26.51 on port 50,000 with message: Connection refused. ERRORCODE=-4499, SQLSTATE=08001DSRA0010E: SQL State = 08001, Error Code = -4,499. View JVM logs for further details.