How to fix the Oracle error CLSGN-00158: Initialization or shut down in progress.?

In this post, you’ll learn more about the Oracle ErrorCLSGN-00158: Initialization or shut down in progress. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CLSGN-00158: Initialization or shut down in progress.

Reason for the Error CLSGN-00158: Initialization or shut down in progress.

GNS was unable to process a command because it is either starting up or shutting down.

How to fix the Error CLSGN-00158: Initialization or shut down in progress. ?

You can fix this error in Oracle by following the below steps

If the server is starting up, try the command again in a few seconds. The server is shutting down, try the command again after the server has restarted.