Recently upgraded our server from 10.5 to 2018.2 and post that observed 2 issues.
1. Though we have done the installation to custom path D drive, but all log files and other files are pointed to C drive program data folder.
2. Receiving Gateway failure alerts, checked Gateway logs but did not find any errors, can anyone help which logs to refer for Gateway errors and what will be the cause.
I'd recommend working with Tableau Support on this. I have no idea what is wrong