[jira] Commented: (CASSANDRA-1253) Forcing CL on a per user basis

["Viktor Jevdokimov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-1253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12891024#action_12891024 ] 

Viktor Jevdokimov commented on CASSANDRA-1253:
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Isn't it a client-side feature/rule? I don't agree that this issue is a major priority, since it can be solved on a client side.

> Forcing CL on a per user basis
> ------------------------------
>
>                 Key: CASSANDRA-1253
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1253
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Edward Capriolo
>
> The user that writes data is allowed to chose the CL they want. This presents several challenges for administration. For example, if I am sure ALL of our applications are writing/reading and CL.QUORUM or CL.ALL, I have some flexibility such as joining a node without auto-bootstrap. Also a policy might be made "all data must be written at QUORUM".
> The new feature is to associate users with a list of available CL. Thus an administrator can enable disable levels.
> {noformat}
> admin: read level [ CL.ZERO,CL.ONE,CL.QUORUM, CL.ALL ]
> user1: read level [CL.QUORUM, CL.ALL]
> {noformat}
> If the user attempts to write/read with a disallowed level an Exception can be thrown or the request could be silently modified/upgraded to a different CL.

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