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The following commit(s) were added to refs/heads/trunk by this push: new a7f8968 Fix Zstd compression level documentation a7f8968 is described below commit a7f89688e5b4fdc2f8990fc42cb593da4f6a923f Author: Romain Hardouin <romain_hardo...@yahoo.fr> AuthorDate: Tue Sep 24 11:20:54 2019 -0700 Fix Zstd compression level documentation Patch by Romain Hardouin; Reviewed by Dinesh Joshi for CASSANDRA-15296 --- doc/source/operating/compression.rst | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/doc/source/operating/compression.rst b/doc/source/operating/compression.rst index 42a057b..b4308b3 100644 --- a/doc/source/operating/compression.rst +++ b/doc/source/operating/compression.rst @@ -38,7 +38,9 @@ default, three options are relevant: - ``chunk_length_in_kb`` specifies the number of kilobytes of data per compression chunk. The default is 64KB. - ``crc_check_chance`` determines how likely Cassandra is to verify the checksum on each compression chunk during reads. The default is 1.0. -- ``compression_level`` is only applicable for ``ZstdCompressor`` and accepts values between ``-131072`` and ``2``. +- ``compression_level`` is only applicable for ``ZstdCompressor`` and accepts values between ``-131072`` and ``22``. + The lower the level, the faster the speed (at the cost of compression). Values from 20 to 22 are called + "ultra levels" and should be used with caution, as they require more memory. The default is 3. Users can set compression using the following syntax: --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org