I've been running a few servers for a few days with a media cache store limit of 500Gig.. but the size of the cache doesn't fill up past about 5.6 Gig. I've checked all the configs and restarted the servers a few times but it simply refuses to fill up. As a result I'm pulling excessive data from my http source.
It's possible that your source is timing out on files which expires them from cache at a rate faster than requests. You might try toggling the MediaCacheSource->MaxTimeToLive and MediaCacheSource->MinTimeToLive accordingly.
Thank you for the feedback. I'll use jconsole to see what I can see. The media cache store is on the same partition.
The odd thing is that I see a steady increase to the disk after a restart.. and then things plateau. We do not have a high rate of abandonment.. these are online lectures and so people want to watch the whole thing from front to back. So the ramp up is aggressive but then it stops.. so that's why I think media cache is not working properly.
Here is a graphic of what I'm seeing.. the disk should continue to fill up but it stops.