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https://issues.apache.org/jira/browse/CASSANDRA-11035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15418493#comment-15418493
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Marcus Eriksson commented on CASSANDRA-11035:
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[~weideng] yes, other things have just gotten in the way
> Use cardinality estimation to pick better compaction candidates for STCS
> (SizeTieredCompactionStrategy)
> -------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-11035
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11035
> Project: Cassandra
> Issue Type: Improvement
> Components: Compaction
> Reporter: Wei Deng
> Assignee: Marcus Eriksson
>
> This was initially mentioned in this blog post
> http://www.datastax.com/dev/blog/improving-compaction-in-cassandra-with-cardinality-estimation
> but I couldn't find any existing JIRA for it. As stated by [~jbellis],
> "Potentially even more useful would be using cardinality estimation to pick
> better compaction candidates. Instead of blindly merging sstables of a
> similar size a la SizeTieredCompactionStrategy." The L0 STCS in LCS should
> benefit as well.
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