The status variables have the following meanings. 

• Aborted_clients 

The number of connections that were aborted because the client died without closing the connection properly. See Section B.3.2.9, “Communication Errors and Aborted Connections” . 

• Aborted_connects 

The number of failed attempts to connect to the MySQL server. See Section B.3.2.9, “Communication Errors and Aborted Connections” . 

For additional connection-related information, check the Connection_errors_ xxx  status variables and the host_cache  table. 

• Authentication_ldap_sasl_supported_methods 

The authentication_ldap_sasl  plugin that implements SASL LDAP authentication supports multiple authentication methods, but depending on host system configuration, they might not all be available. The Authentication_ldap_sasl_supported_methods  variable provides discoverability for the supported methods. Its value is a string consisting of supported method names separated by spaces. Example: "SCRAM-SHA 1 SCRAM-SHA-256 GSSAPI" 

This variable was added in MySQL 8.0.21. 

• Binlog_cache_disk_use 

The number of transactions that used the temporary binary log cache but that exceeded the value of binlog_cache_size  and used a temporary file to store statements from the transaction. 

The number of nontransactional statements that caused the binary log transaction cache to be written to disk is tracked separately in the Binlog_stmt_cache_disk_use  status variable. 

• Acl_cache_items_count 

The number of cached privilege objects. Each object is the privilege combination of a user and its active roles. 

• Binlog_cache_use 

The number of transactions that used the binary log cache. 

• Binlog_stmt_cache_disk_use 

The number of nontransaction statements that used the binary log statement cache but that exceeded the value of binlog_stmt_cache_size  and used a temporary file to store those statements. 

• Binlog_stmt_cache_use 

The number of nontransactional statements that used the binary log statement cache. 

• Bytes_received 

The number of bytes received from all clients. 

• Bytes_sent 

The number of bytes sent to all clients. 

