We have a fairly regular issue with a "session ended by server" message, and we noticed today our batch file running a tabcmd export to PDF failed in the middle today. When I look a the WIndows Event Log I see this warning at the time when the failures seem to have ocurred:'Restarting dead component 'Tableau Server Vizqlserver 1'. No fatal errors, but this warning is consistemntly there at the same times as the failures. We are on Windows Server 2008 R2 Enterprise. ANyone elde see something like this?