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Posted to commits@cassandra.apache.org by "Wei Deng (JIRA)" <ji...@apache.org> on 2016/01/19 23:15:40 UTC
[jira] [Created] (CASSANDRA-11035) Use cardinality estimation to
pick better compaction candidates for STCS (SizeTieredCompactionStrategy)
Wei Deng created CASSANDRA-11035:
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Summary: 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
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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