I don’t think so. The server is overkill for our community with 16GB RAM. top shows 11GB free memory, and that hardly changes if I manually trigger a backup.
I’ll check /var/log/syslog tomorrow for anything about memory, kill, or OOM. (Can’t check today because I had some unrelated verbose logging and the backup event scrolls out of the syslog buffer.)
Yes, I updated to 3.5.0.beta5-dev a few days ago and the issue persists.