Spectrus JS: Database Server is not running or not reachable

Description

If the page continues loading and does not finish opening, Spectrus JS may be unable to connect to the Database Server.

Solution

Check the Database Server status in Server Manager Console (SMC).

If needed, review the Processing Server log to confirm whether the connection failure is coming from MongoDB.

In this example, the log entries show that the errors originate from MongoDB.

You may see the message 284 Data does not exist, even though the underlying issue is a failed database connection.

In this situation, the more likely cause is that the application cannot connect to the database.

Start the Spectrus JS Database Server in SMC, then refresh the page.

Once the Database Server is running, the home page and available datasets should load normally.

Chrome browser doesn’t give the text of the error, replacing it with OK.

Additional Guidance: Browser-Specific error display

In Chrome, the browser may display OK instead of the actual error text. Open the developer tools to review the real status code and error details.

Additional Guidance: Confirm whether the request reached the Processing Server

If the error appears on an api path, check the Response Headers section.

If the response headers do not mention Zathras, the request likely did not reach the Processing Server and the issue is still on the Web Server side.

Additional Guidance: Log locations

Open spjswiz.exe and review the configured log locations for the relevant services.