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From "Kirk True (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3974) Per-CF TTL
Date Wed, 30 May 2012 22:03:23 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286115#comment-13286115
] 

Kirk True commented on CASSANDRA-3974:
--------------------------------------

Also, given that the logic is {{min(CF TTL, column TTL)}}, when the user explicitly provides
a column TTL longer than the default column family TTL, I would think we'd either want to
a) give an error, or b) provide a warning. At this point, the larger value provided by the
user is simply ignored.

Thoughts?  
                
> Per-CF TTL
> ----------
>
>                 Key: CASSANDRA-3974
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3974
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Jonathan Ellis
>            Assignee: Kirk True
>            Priority: Minor
>             Fix For: 1.2
>
>         Attachments: trunk-3974.txt
>
>
> Per-CF TTL would allow compaction optimizations ("drop an entire sstable's worth of expired
data") that we can't do with per-column.

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