Currently it's difficult to gather how many objects and segments are
being inserted. Adding separate monitoring counters make this easier.
Change-Id: I986cd82f03e99d2aa6fc76028255ee1090d1b294
metabase has become a central concept and it's more suitable for it to
be directly nested under satellite rather than being part of metainfo.
metainfo is going to be the "endpoint" logic for handling requests.
Change-Id: I53770d6761ac1e9a1283b5aa68f471b21e784198