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Now that we upsert history records without first selecting them, we can't rely on storing a peer's last uploaded/downloaded values in the history record to determine the user's uploaded/downloaded delta between the last announce. If a user has internet issues for a brief period of time but their client continues working, then their change of upload/download between the two announces needs to be kept track of. This is usually kept track of in the peer record, but if the peer is deleted after 2 hours of not announcing, then their last uploaded/downloaded data is deleted with it. We previously stored this data in the history table to handle such cases but this became erroneous if the user had multiple peers on a torrent. This new solution keeps the peers in the database for 2 days before concluding that the peer isn't coming back and deletes the peer permanently. After which point, a new peer will be created and an assumption is made that they uploaded/downloaded 0 data within their downtime.