Troubleshooting Connection Errors

This table explains how to understand and fix connection errors that may display when Horizon startup is starting the Application Server connection.

Error message

Description

The middle-tier Horizon database connection cannot be determined. Please check the matham data source.

You have not entered any value in the Horizon App Server Data Source field in the matham view, or the corresponding target on Information Portal cannot be found. The user will not be able to access the middle-tier.

Your system administrator must make sure that the data source name entered in the Horizon App Server Data Source field in the matham view matches the data source name in your Horizon connection settings in Information Portal. (For more information, see “Changing the Data Source Connection for Horizon” section in the “Searching Setup” chapter of the Horizon Information Portal System Administration Guide. Once the data source is filled in or changed, the user will need to restart Horizon.

The middle-tier data source connects to a different database. Please correct the matham data source.

The Information Portal data source referenced in the matham table connects to a different database. This could occur if a database has been restored under a different name without updating the data source name on matham.

The user will not be able to access the middle-tier.

Your system administrator must update matham with the correct Information Portal data source name. Once the data source is filled in or changed, the user will need to restart Horizon.

 


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