gabe565
Hi! I’m a DevOps engineer and software dev who loves self-hosting things.
Definitely! I’m hosting in Kubernetes so I won’t post the full thing, but here’s the actual command that I run hourly. Make sure to replace the values for database
, username
, and password
.
PGPASSWORD=password psql --dbname=database --username=username --command="DELETE FROM activity WHERE published < NOW() - INTERVAL '3 days';"
Sure! My script will look a little different since I’m hosting Lemmy in Kubernetes, but basically you will want to run the following command hourly. Make sure to replace the values for database
, username
, and password
.
PGPASSWORD=password psql --dbname=database --username=username --command="DELETE FROM activity WHERE published < NOW() - INTERVAL '3 days';"
The activity
table is also used to deduplicate incoming federation data, so instead of truncating it, I’d suggest deleting rows after a certain amount of time.
For my personal instance, I set up a cron to delete entries older than 3 days, and my db is only ~500MB with a few weeks of content! I also haven’t seen any duplicated posts or comments. Even with Lemmy’s retries, 3 days seems to be long enough before dropping rows from that table.