X Plugin Options and Variables Introduced 8.0.20 System Variable mysqlx_zstd_max_client_compression_level Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Integer Default Value 11 Minimum Value -131072 Maximum Value 22 The maximum compression level that the server permits for the zstd 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 11. The X Plugin status variables have the following meanings. The number of clients that were disconnected because of an input or output error. The network address or addresses for which X Plugin accepts TCP/IP connections. If multiple addresses were specified using the  mysqlx_bind_address  system variable,  Mysqlx_address  displays only those addresses for which the bind succeeded. If the bind has failed for every network address specified by  mysqlx_bind_address , or if the  skip_networking  option has been used, the value of  Mysqlx_address  is  UNDEFINED . If X Plugin startup is not yet complete, the value of Mysqlx_address  is empty. The total number of bytes received through the network. If compression is used for the connection, this figure comprises compressed message payloads measured before decompression ( Mysqlx_bytes_received_compressed_payload ), any items in compressed messages that were not compressed such as X Protocol headers, and any uncompressed messages. The number of bytes received as compressed message payloads, measured before decompression. The number of bytes received as compressed message payloads, measured after decompression. The total number of bytes sent through the network. If compression is used for the connection, this figure comprises compressed message payloads measured after compression ( Mysqlx_bytes_sent_compressed_payload ), any items in compressed messages that were not compressed such as X Protocol headers, and any uncompressed messages. 3907 • Mysqlx_bytes_sent • Mysqlx_bytes_received_uncompressed_frame • Mysqlx_bytes_received_compressed_payload • Mysqlx_bytes_received • Mysqlx_address • Mysqlx_aborted_clients 20.5.6.3 X Plugin Status Variables