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Posted to commits@cassandra.apache.org by "Dinesh Joshi (Jira)" <ji...@apache.org> on 2021/10/01 23:10:00 UTC

[jira] [Created] (CASSANDRA-17021) Enhance Zstd support in Cassandra with dictionaries

Dinesh Joshi created CASSANDRA-17021:
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             Summary: Enhance Zstd support in Cassandra with dictionaries
                 Key: CASSANDRA-17021
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17021
             Project: Cassandra
          Issue Type: Improvement
          Components: Feature/Compression
            Reporter: Dinesh Joshi
            Assignee: Yifan Cai


Currently Cassandra supports zstd compression. However, Zstd also supports dictionaries to enhance not only the compression ratio but also the speed. Dictionaries can show 3-4x savings. We should add support to train dictionaries, ideally per SSTable this will yield the maximum gains.



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