I'm seeing the same thing, could it be machine names within a cluster or something along those lines?
Some of the names I am seeing are , cassandra:bobbob, rhubarb:britany, amber:nanci, mufasa:stone, rhubarb:julian.
I see two rhubarbs, with different server names. Under account status it only shows the MySQL server as amber, which is the one that all new databases are created on now since the migration to keeping all databases on the one server a while back.
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