michaelsembwever commented on code in PR #2282: URL: https://github.com/apache/cassandra/pull/2282#discussion_r1273207954
########## conf/cassandra.yaml: ########## @@ -570,6 +570,50 @@ commitlog_segment_size: 32MiB # # flush_compression: fast +# Defines the default compression used on tables when none is specified +# in the CQL command. +# +# The class_name is the compressor class name. It may be one of the aliases, +# the class name of a system ICompressor implementation, or fully qualified +# name of a class that implements ICompressor and has a public static 'create' method that accepts +# a Map<String, String> argument and returns an instance of the class. +# +# class aliases are: +# Alias System compressor impl. +# deflate DeflateCompressor +# lz4 LZ4Compressor +# none (null) -- compresson disabled +# noop NoopCompressor +# snappy SnappyCompressor +# zstd ZstdCompressor +# +# The standard parameters are any required or optional parameter for the instantiation of the +# specified class, or one of the following standard parameters: +# Parameter Usage +# enabled Disables compression if set to false. Defaults to true. +# chunk_length The length of the compresson chunks, must include KiB, MiB or GiB suffix, defaults to 16KiB. +# chunk_length_in_kb Same as above but expects an integer. +# min_compress_ratio The minimal acceptable compression, must greater than or equal to 1.0. +# max_compressed_length The maximum size for a compressed block. Must be less than or equal to chunk_length. +# Must include KiB, MiB or GiB suffix. Defaults to Integer.MAX_VALUE +# +# Only one of the min_compress_ratio and max_compressed_length options can be specified. +# They are mathematically related in that 'chunk_length / max_compressed_length = min_compress_ratio'. +# If neither option is specified a min_compress_ratio of 0.0 and a max_compressed_length of +# Integer.MAX_VALUE KB is the default. +# +# Only one of chunk_length or chunk_length_in_kb may be specified. +# +# Additional class specific parameters may be added to the parameters section. The value of the class specific +# parameter must be a string. Review Comment: ```suggestion # Parameter Usage # enabled Disables compression if set to false. Defaults to true. # chunk_length The length of the compresson chunks, must include KiB, MiB or GiB suffix, defaults to 16KiB. # min_compress_ratio The minimal acceptable compression, must greater than or equal to 1.0. # max_compressed_length The maximum size for a compressed block. Must be less than or equal to chunk_length. Cannot be specified with min_compress_ratio. # Must include KiB, MiB or GiB suffix. Defaults to Integer.MAX_VALUE # # The relation between parameters is 'chunk_length / max_compressed_length = min_compress_ratio'. # If neither min_compress_ratio or max_compressed_length is specified these default to min_compress_ratio=0.0 and max_compressed_length=Integer.MAX_VALUE KB . # ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
