Two related comments, though about versions from the future :) : - In 1.3.0 new db settings were introduced, which didn't work on 32bit arches, resulting in huge databases. Was fixed in 1.3.1 (aka please skip packaging 1.3.0). - In 1.4.0 a db optimisation was introduced, that cuts the db size down a lot. - In 1.5.0 there will be an option to store the db in a separate location. On new installs where XDG_HOME_DIR is set or ~/.local/share/syncthing exists, those directories will be used by default.
And a general note: There are no reports upstream of unusually large databases. And 2GB isn't unreasonable given sufficiently large synced folders. Pre 1.4.0 my db was ~1.5GB for ~500GB, 1e6 items.
