- On 4/17/25 12:18, christian.schneider@tu-dortmund.de wrote:
I want to set up a new server (Ubuntu-24.04) and install Mailman-3 with the Virtualenv setup method: https://docs.mailman3.org/en/latest/install/virtualenv.html As I know from my old Mailman-2.1 the archives could get quite big... ;-) So it seems very important to provide enough (expandable) disk space at the right place. (I plan to use a seperate partition with LVM for the path in question)
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/...
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.
Mihai