X Plugin Options and Variables • mysqlx_lz4_default_compression_level Command-Line Format -- mysqlx_lz4_default_compression_level=# Introduced 8.0.20 System Variable mysqlx_lz4_default_compression_level Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Integer Default Value 2 Minimum Value 0 Maximum Value 16 Command-Line Format -- mysqlx_lz4_max_client_compression_level=# Introduced 8.0.20 System Variable mysqlx_lz4_max_client_compression_level Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Integer Default Value 8 Minimum Value 0 Maximum Value 16 Command-Line Format --mysqlx-max-allowed-packet=# System Variable mysqlx_max_allowed_packet Scope Global Dynamic Yes SET_VAR  Hint Applies No 3900 • mysqlx_max_allowed_packet The maximum compression level that the server permits for the LZ4 algorithm on X Protocol connections. The range is the same as for the default compression level for this algorithm. If the client requests a higher compression level than this, the server uses the level you set here. If you do not specify this system variable, the server sets a maximum compression level of 8. The default compression level that the server uses for the LZ4 algorithm on X Protocol connections. Specify the level as an integer from 0 (the lowest compression effort) to 16 (the highest effort). This level is used if the client does not request a compression level during capability negotiation. If you do not specify this system variable, the server uses level 2 as the default. For more information, see Section 20.5.5, “Connection Compression with X Plugin” . • mysqlx_lz4_max_client_compression_level