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https://issues.apache.org/jira/browse/CASSANDRA-18352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17722947#comment-17722947
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Jordan West commented on CASSANDRA-18352:
-----------------------------------------

[~adelapena] added reason field. if the changes look good to you I will go 
ahead and merge. 

> Add Option to Timebox write timestamps
> --------------------------------------
>
>                 Key: CASSANDRA-18352
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-18352
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: CQL/Semantics
>            Reporter: Jordan West
>            Assignee: Jordan West
>            Priority: Normal
>          Time Spent: 2.5h
>  Remaining Estimate: 0h
>
> In several cases it is desirable to have client provided timestamps generated 
> at the application-level. This can be error prone, however. In particular, 
> applications can choose timestamps that may be nonsensical for a given 
> application. One dangerous manifestation of this is the "doomstone" (a 
> tombstone far in the future of any realistic write). This feature would allow 
> either operators or users to specify a minimum and maximum timebound of 
> "reasonable" timestamps. The default would be negative infinity, positive 
> infinity to maintain backwards compatibility. Writes that are USING TIMESTAMP 
> with a timestamp outside of the timebox will see an exception. 



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