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https://issues.apache.org/jira/browse/CASSANDRA-10995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15096640#comment-15096640
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Jim Witschey commented on CASSANDRA-10995:
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[~iamaleksey] Jake had a good suggestion for getting more compressible sstables
out of {{cassandra-stress}}: decrease the size of the population from which to
insert. I'm working on determining if data generated like that actually does
compress more than stress's default randomly-generated data, but if it does, do
you think that would that be a reasonable proxy for a normal dataset w.r.t.
compression?
> Consider disabling sstable compression by default in 3.x
> --------------------------------------------------------
>
> Key: CASSANDRA-10995
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10995
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Aleksey Yeschenko
> Assignee: Jim Witschey
>
> With the new sstable format introduced in CASSANDRA-8099, it's very likely
> that enabled sstable compression is no longer the right default option.
> [~slebresne]'s [blog post|http://www.datastax.com/2015/12/storage-engine-30]
> on the new storage engine has some comparison numbers for 2.2/3.0, with and
> without compression that show that in many cases compression no longer has a
> significant effect on sstable sizes - all while sill consuming extra
> resources for both writes (compression) and reads (decompression).
> We should run a comprehensive set of benchmarks to determine whether or not
> compression should be switched to 'off' now in 3.x.
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