Hello, I'm reading online that deleting items doesn't actually remove them from disk, it merely marks them as "deleted".
And that in order to free disk space by removing deleted items, I need to do an "optimize" or "expungeDeletes" call. Having run a bunch of deletes on a collection, over a few hours, I noticed the used disk space for this collection did indeed go down. Looking at metrics, it seems every hour or so, a chunk of disk space was freed up. So what's actually going on here? I was under the impression that nothing would be freed up and I would need to call "optimize". Regards, Koen
