One of my sites has 300k users 500k threads (I think) and I would love to migrate it to XF. Has this ever been done? This will be my testbed for a much larger import migration.
So has anyone done this? I would love to migrate but I would hate to see the site / server crash from something of this size. Id love to do this tomorrow or so but do not want to be the first to take such a jump / test.
With respect to the size of your forum, I don't expect you will have any major problems with the conversion. XenForo has demonstrated some impressive load numbers on large forums. The import itself is pretty seamless.
This thread might be useful after you have finished running the import:
maybe xenforo can start compiling a list of stats for customers' forums i.e. a big-board type of list just for xenforo sites ?? info can be entered in members download area where the specify their link to their licensed forum install.
does help when the sales/pre-sales question comes up as to list of xenforo sites, their size etc