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https://issues.apache.org/jira/browse/CASSANDRA-14482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16773883#comment-16773883
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Dinesh Joshi commented on CASSANDRA-14482:
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Adding our own checksumming incurs additional overhead not just in terms of the
additional CPU that we would use going over the data twice (once for
compression inside Zstd and then once in the compressor to compute the hash)
but also additional code and maintaining that code. From my digging around in
the code it seems [they're clobbering
parameters|https://github.com/facebook/zstd/issues/1534] which should be an
easy fix.
> ZSTD Compressor support in Cassandra
> ------------------------------------
>
> Key: CASSANDRA-14482
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14482
> Project: Cassandra
> Issue Type: New Feature
> Components: Dependencies, Feature/Compression
> Reporter: Sushma A Devendrappa
> Assignee: Dinesh Joshi
> Priority: Major
> Labels: performance, pull-request-available
> Fix For: 4.x
>
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> ZStandard has a great speed and compression ratio tradeoff.
> ZStandard is open source compression from Facebook.
> More about ZSTD
> [https://github.com/facebook/zstd]
> https://code.facebook.com/posts/1658392934479273/smaller-and-faster-data-compression-with-zstandard/
>
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