Stop trackers, tracker-filesystem-miner, tracker-store, zeitgeist-datahub in Fedora by typing disabling them using and unchecking the items you want to disable on startup:
Uncheck the items:
Tracker File System Miner
Tracker Miner for Flickr
At present, these are checked by default.
This way, you would not have the trackers enabled and collating all kinds of metadata, document information and the like.