On Thu, Apr 17, 2025 at 3:14 PM Christian Schneider < christian.schneider@tu-dortmund.de> wrote:
Thank you for your instant reply!
Mihai Moldovan wrote:
But I could find no information about the location where hyperkitty stores the archives on an Ubuntu-/Linux-system. I assume the archives are stored underneath "/var/..." this is only a guess. But is this guess right? Not quite. To the best of my knowledge, by default, a venv installation is fully contained under /opt/mailman, with archives and stuff stored at /opt/mailman/var/lib/...
This information is very helpful! Actually I have about 45GB of archives and these archives only hold messages of the last year... I run a clean-up script every first day of a month which deletes posts older than 365 days... So there is lot of disk space needed... ;-) (and even more if I plan to keep posts around for a longer time)
Another question is: How much space do I have to plan (roughly) for the "/opt"-partition for the mailman install if the archives are stored under "/var/..."? Depends on your archives, the way things are archived (you can choose different database backends, and these might make a difference in how efficiently or inefficiently data is stored) and whether you want to use the full-text search index, which adds another big chunk of data. I can give you a few pointers regarding my setup: my mailman 2.1 data directory takes up about 8.2 GB of disk space, most of which are archives, naturally (8.1 GB). I've imported most of the big archives to mailman 3 already, with a full-text search index, and that uses 5.2 GB disk space currently, but I'm still missing a few archives, so that'll still grow a bit. It will probably end up at about the same size, but I can come back to that once my import is fully done (which sadly will take a few days). Now, the 8.1 GB of mailman 2.1 archives are stored pretty inefficiently, because they are essentially duplicated (as a private mbox archive and public text archives). Mailman 3 doesn't do that - at least not directly - but instead stores archives once into the database, and queries the database whenever the archives are accessed via hyperkitty, so I would *assume* the size you need for the mailman 3 data after a successful migration is just a bit shy of what you needed for the mailman 2.1 data, maybe even a bit less.
Perfect! :-) If I mount an extra partition of 250Gigs at /opt this should carry me for a longer time... And - if I setup a logical volume with LVM - there is an option to stack up the space with ease... ;-)
Does your DB backend also store the data files in /opt? I doubt it. The archives will be stored in the DB backend. So unless you use SQLite backend, the data will go where you configure your DB to store data- whether it's MariaDB or PostgreSQL.
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