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https://issues.apache.org/jira/browse/CASSANDRA-12151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15397542#comment-15397542
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Jonathan Ellis commented on CASSANDRA-12151:
--------------------------------------------

Can we back up a little and talk about design?

Some questions in my mind:

# Do we want a global audit log, or server-local?  If the former (easier for 
users to query), it should go in system_distributed keyspace; otherwise just in 
system (higher performance).
# Is there a use case where you'd want to log every query?  That seems like it 
would entail a prohibitive performance penalty.  I would think most users would 
be better served by logging meta-changes (adding roles, altering tables, etc)

> Audit logging for database activity
> -----------------------------------
>
>                 Key: CASSANDRA-12151
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12151
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: stefan setyadi
>             Fix For: 3.x
>
>         Attachments: 12151.txt
>
>
> we would like a way to enable cassandra to log database activity being done 
> on our server.
> It should show username, remote address, timestamp, action type, keyspace, 
> column family, and the query statement.
> it should also be able to log connection attempt and changes to the 
> user/roles.
> I was thinking of making a new keyspace and insert an entry for every 
> activity that occurs.
> Then It would be possible to query for specific activity or a query targeting 
> a specific keyspace and column family.



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