Hi,   Looks like there is a connectivity issue from the NM to the Oracle database.   Can you please run the below command from all the Node Managers.   Note:- You need to install telnet utility prior running this command.   ## telnet <oracle full hostname> <oracle port number>   Kindly check if all the NM are able to connect, If any of them is not able to connect then kindly check with network team.   Regards Nitish ... View more