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https://issues.apache.org/jira/browse/CASSANDRA-7589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas updated CASSANDRA-7589:
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Component/s: Compaction
> Option to disable min timestamp check for TTL compaction enhancements
> ---------------------------------------------------------------------
>
> Key: CASSANDRA-7589
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7589
> Project: Cassandra
> Issue Type: Improvement
> Components: Compaction
> Reporter: Matt Stump
> Priority: Minor
>
> As part of CASSANDRA-5228 we added an enhancement to unlink SSTables for TTL
> use cases if certain checks are met. One of those checks is that for an
> SSTable to be deleted the maximum timestamp must not be less than the minimum
> timestamp for all other SSTables. This makes sense for use cases where GC
> grace is >= the TTL, or use case where deletes are performed by the
> application.
> For use cases where GC grace is less than the TTL, and where deletes are only
> performed via TTL then these checks result in SSTables that could be safely
> deleted sticking around for some time. In practice the TTL related
> enhancements kick in very infrequently and most SSTables go through the
> normal compaction process.
> What I propose is a CF level setting that disables the check, so that an
> SSTable can be unlinked once time() >= max TTL.
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