I just tested auto-upgrade on one machine (to avoid bringing down the house), and I noticed this in the upgrade logs:
Copying bin files to bootstrap folder /newhome/qmaster/Thinkbox/Deadline6/temp/LauncherBootstrap
Copying /usr/local/Thinkbox/Deadline6/bin/Couchbase.dll to /newhome/qmaster/Thinkbox/Deadline6/temp/LauncherBootstrap/Couchbase.dll
...
...
Temporary files are being copied into the qmaster user’s home directory, and then deleted once the process completes.
Since this is a shared home directory, how is this not going to go horribly wrong if 100+ nodes decide to auto-upgrade within a small window of time?