Consider the following scenario:
Assume that you install PolyBase scale-out groups on an instance of SQL Server 2019.
You configure PolyBase on the head node, create an external data source and an external table.
You run a query against the external table.
In this situation, you add a compute node to the scale-out group and run the same query as above, you may receive the following error message:
Cannot execute the query "Remote Query" against OLE DB provider "MSOLEDBSQL" for linked server "(null)".
A connection was successfully established with the server, but then an error occurred during the login process.
SSL Provider, error: 0 - The certificate chain was issued by an authority
that is not trusted.)
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
This issue is fixed in the following cumulative update for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Learn about the terminology that Microsoft uses to describe software updates.