well you can either use a single database for log entries, or cassandra or a mysql cluster or a pg cluster. that doesn't matter.. basially instead of having a t

well you can either use a single database for log entries, or cassandra or a mysql cluster or a pg cluster. that doesn't matter.. basially instead of having a table where you update/delete entries you basically append only to a table. so insert only. you can still have another table that will be aggregated from your log table. where you store (i.e. which database system, cluster whatever) your stuff doesn't matter.