I patched this on 3.11.2 easily: 

1. build jar file from src and put in cassandra/lib directory

2. restart cassandra service

3. alter table using compression zstd and rebuild sstables



But it was in a time when 4.0 was not available yet and after that i upgraded 
to 4.0 immidiately.


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---- On Tue, 13 Sep 2022 06:38:08 +0430 Eunsu Kim <eunsu.bil...@gmail.com> 
wrote ---



Hi all, 
 
Since zstd compression is a very good compression algorithm, it is available in 
Cassandra 4.0. Because the overall performance and ratio are excellent 
 
There is open source available for Cassandra 3.x. 
https://github.com/MatejTymes/cassandra-zstd 
 
Do you have any experience applying this to production? 
 
I want to improve performance and disk usage by applying it to a running 
Cassandra cluster. 
 
Thanks.

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