Sorry it’s taken so long to get back here…
Disk is <50% in use.
RAM tends to remain in 80-90 range, Swap <40%. I’m guessing this is where the issue is caused.
Logs are in /var/discourse/shared/standalone/log/rails.
production.log and related gzipped files have a lot of transaction detail. What might I look for?
There are no production_error.log entries at all.
“Frequently”? No. But often enough to be mildly annoying and prompt a post here. 
I went through syslog and didn’t see anything - not sure there would be anything there if issue is restricted to container, as it should be.
I’m a Docker noob, so I’m sorry that I have no info from the container, but will be happy to poke as directed.
Thanks!