We have been using Piwik at our organization for a couple years, currently on v3.1.1. Over the years the database has grown very large (150gb +) and we haven’t had much success cleaning up/reclaiming that disk space. We would like to build a new server running Matomo and migrate only a select few sites that we are still interested in from our existing Piwik installation.
There seems to have been a Site Migration plugin in the past that is no longer available. When researching the topic I see a lot of people who want to move their entire Piwik db, and there seems to be some instruction around that, but I really only want to move a couple sites.
Today a new plugin was published that does exactly what you want:
Keep in mind that this is not well-tested yet and I think also doesn’t migrate all data yet, so please take a backup of both ends before you try it out.
