We have 3-tire Architecture of SharePoint 2013(APP Server,WFE Server and SQL Server).I have configured User Profile Synchronization service in APP Server it is working and According to our requirement I have to configure one more User Profile Synchronization service for another Domain.By following below link I have configured secound UPS.
But In Profile Synchronization status it is in "Synchronization" mode only for hours.
And I have gone through the Event Viewer in that i was facing following error.
The Execute method of job definition Microsoft.Office.Server.UserProfiles.UserProfileImportJob (ID ff8f5626-9d40-4fd7-b3f1-f09a1080e701) threw an exception. More information is included below.
The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)
Again to solve this issues i have followed the following Link.
But still i was facing the same error and Profile Synchronization status is still "Synchronization".