948 Server Status Variables The status variables have the following meanings. • Bytes_sent • Bytes_received • Binlog_stmt_cache_use • Binlog_stmt_cache_disk_use • Binlog_cache_use • Acl_cache_items_count • Binlog_cache_disk_use • Authentication_ldap_sasl_supported_methods • Aborted_connects • 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” . 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. 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. 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. The number of cached privilege objects. Each object is the privilege combination of a user and its active roles. The number of transactions that used the binary log cache. 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. The number of nontransactional statements that used the binary log statement cache. The number of bytes received from all clients. The number of bytes sent to all clients.