Scalability
    
    
        Use this topic to learn about the
            scalability of tenant configuration DRC timeout and REST request timeout.
     
        Scaled REST Request
                Timeout
            
            When you run a scaled XCO tenant REST request (which takes more than 15 minutes), it
                fails with the following error:
            Service is not available or
                    internal server error has occurred, please try again later.
            Run the show
                command to verify the successful completion of failed REST request.
        
        Scaled DRC Timeout
            
            
                        
                            | Tenant DRC Behavior | 
                            Tenant DRC Behavior in case of Scale Config | 
                        
                    
                        
                            
                                
                                    - When you run
                                        the efa inventory drift-reconcile execute
                                        command, the tenant configuration drift and reconciliation
                                        starts with other services (for example, inventory, fabric,
                                        and policy).
 
                                    - During the
                                        tenant DRC, the tenant drift is identified, and then the
                                        same drift is reconciled. The timeout for both tenant
                                        configuration drift identification and reconciliation is 15
                                        minutes.
 
                                    - The inventory
                                        drift-reconcile execute command waits for the tenant DRC
                                        response for 15 minutes. If the response is not received
                                        within 15 minutes, then the DRC fails with the reason code
                                            
tenant-dr-timeout. 
                                    - The
                                        functionality is applicable for manual DRC and auto DRC
                                        (triggers when the device is reloaded in maintenance
                                        mode).
 
                                 
                             | 
                            
                                
                                    - In case of
                                        scaled tenant configuration drift (for example, 2000 VE or
                                        PO drifted and 100 VRFs drifted), the tenant can take more
                                        than 15 minutes for drift identification and reconciliation.
                                        Therefore, the DRC fails with the status 
tenant-dr-timeout. 
                                    - The tenant
                                        configuration drift identification and reconciliation run to
                                        completion in the background even though the DRC fails with
                                        the status 
tenant-dr-timeout. 
                                    - The
                                        subsequent DRC reflects the correct status of the
                                        drift.
 
                                 
                             |