An error occurs during pre-migration or migration if the source or target Model Manager Web Service is not available.

Problem

The following error message appears during vRealize Automation migration.

The operation has timed out. A problem occurred while trying to access the URL https://domain_name:port_number/repository/Data/MetaModel.svc. Model Manager Web Service is installed on host https://domain_name:port_number but it is not up and running. HTTP Web Response status code: InternalServerError.

Cause

The source or target Model Manager Web Service is not available during the migration process.

The source and target Model Manager Web Service must remain online during the pre-migration and migration tasks. See Prerequisites for vRealize Automation Migration.

Procedure

  1. Log in to Windows by using your Domain or SQL administrator credentials.
  2. Open a URL in a Web browser to determine if the source Model Manager Web Service is running:

    Use one of the following URLs.

    • https://vCAC52xhostname/repository/Data/SecurityModel.svc

    • https://vCAC52xhostname/repository/Data/MetaModel.svc

    The Model Manager Web Service is running If the authentication prompt appears when you enter valid credentials. The prompt is followed by a page that contains a small XML file and which does not display any errors.

  3. Open either a URL in a Web browser of your choice to determine if the target Model Manager Web Service is running:

    Use one of the following URLs.

    • https://vCAC61hostname/repository/Data/SecurityModel.svc

    • https://vCAC61hostname/repository/Data/MetaModel.svc

    The Model Manager Web Service is running If the authentication prompt appears when you enter valid credentials. The prompt is followed by a page that contains a small XML file and which does not display any errors.

  4. If the service is not running, start the service by using the IIS Manager or by running the net start w3svc command.

    For details, see Start or Stop an Application Pool in Microsoft SQL Server product documentation.