I'm running owncloud on a rpi - that is, a very slow server. All of owncloud's database tables are less than 30MB large, but for oc_filecache, which is 1,5GB. Currently the migration test seems to be working on testing this table, it created a copy oc_oc_filecache_randomcharacters and this copy is growing at about 1MB per minute.
So I wonder: wouldn't it be faster to somehow empty this cache before the upgrade and regenrate it afterwards? Is this possible? Or should I just wait a couple of days until the upgrade is finished?