The following article outlines some common problems that can arise during or after the upgrade of Discovery Center.
Failure During Automatic Upgrade
For errors in an automatic upgrade of post R4.2 releases, it is usual to find that the existing Discovery Center installation has been removed but its database has been retained. In such a case, resolve the errors arising as described below and proceed with the installation process. The installer will recognize any existing database and upgrade it automatically.
Correcting Connector Path Errors
Where Discovery Center has been inadvertently installed to a different location its user interface may exhibit the following behaviors:
- Network Map tab shows Load Error.
- Indexes tab does not list indexes.
- Area of interest tab reports a server error.
To resolve these problems the path stored in the ConnectorDefinition table of the Discovery Center database will need to be corrected for all registered connectors as follows:
- Open SQL Server Management Studio for the Discovery Center database and create the following query
DECLARE @oldInstallLocation NVARCHAR(MAX) = 'C:\Program Files (x86)\Data Discovery Solutions Ltd\' DECLARE @newInstallLocation NVARCHAR(MAX) = 'C:\Program Files\Active Navigation\'
UPDATE ConnectorDefinition SET path = REPLACE( path, @oldInstallLocation, @newInstallLocation) SELECT * FROM ConnectorDefinition
- In line one of the query, replace the file path with that of the old installation.
- In line two of the query, replace the file with that of the new installation.
- Run the query and review the results listed to ensure the location(s) specified matches the new installation.
Unexpected Behavior in Web Interface
In some circumstances, browser caching behaviors will cause unexpected errors in the Discovery Center user interface. Examples include unexpected or missing elements in pages or repeated error dialogs. To resolve these errors, refresh the browser cache by reloading the browser page while holding the SHIFT key.
Other Issues
For upgrade problems not covered in this document contact Active Navigation Support by submitting a ticket while providing the following information:
- Full details of the upgrade steps you have performed.
- The version number of your previous release.
- The version to which you are upgrading.
- A detailed description of the errors/issues observed during or after the upgrade.
- An msiexec log file obtained by running the installation from a command line as documented here.