[jira] [Commented] (CASSANDRA-3428) add constituent tracking to sstables

["Jonathan Ellis (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-3428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13140209#comment-13140209 ] 

Jonathan Ellis commented on CASSANDRA-3428:
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I'm not sure where you're going with this.  The old -> new replace in DataTracker is done atomically; you will never have both old and new sstables present in the same View.
                
> add constituent tracking to sstables
> ------------------------------------
>
>                 Key: CASSANDRA-3428
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3428
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: T Jake Luciani
>              Labels: compaction
>             Fix For: 1.1
>
>
> Compaction merges older sstables into newer versions of the data.
> When snapshotting sstables (esp incrementally) it would be very useful to know what older sstables are no longer needed because they are now represented in a newer version.
> This patch should add the list of sstables that made up each new sstable and store this info in the -Statistics file.

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