/admin?op=reload-services is a Web services operation that reloads the application's main and library modules.
The admin?op=reload-services operation causes the Dgraph to process all existing preceding queries, temporarily stop processing other queries and begin to process admin?op=reload-services. After it finishes processing this operation, the Dgraph resumes processing queries that queued up temporarily behind this request.
The reload-services operation is not supported in the Agraph.