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SELECT * FROM `host_cache`
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IP
Client IP address.
HOST
IP's resolved DNS host name, or NULL if unknown.
HOST_VALIDATED
YES if the IP-to-host DNS lookup was successful, a…
SUM_CONNECT_ERRORS
Number of connection errors. Counts only protocol …
COUNT_HOST_BLOCKED_ERRORS
Number of blocked connections because SUM_CONNECT_…
COUNT_NAMEINFO_TRANSIENT_ERRORS
Number of transient errors during IP-to-host DNS l…
COUNT_NAMEINFO_PERMANENT_ERRORS
Number of permanent errors during IP-to-host DNS l…
COUNT_FORMAT_ERRORS
Number of host name format errors, for example a n…
COUNT_ADDRINFO_TRANSIENT_ERRORS
Number of transient errors during host-to-IP rever…
COUNT_ADDRINFO_PERMANENT_ERRORS
Number of permanent errors during host-to-IP rever…
COUNT_FCRDNS_ERRORS
Number of forward-confirmed reverse DNS errors, wh…
COUNT_HOST_ACL_ERRORS
Number of errors occurring because no user from th…
COUNT_NO_AUTH_PLUGIN_ERRORS
Number of errors due to requesting an authenticati…
COUNT_AUTH_PLUGIN_ERRORS
Number of errors reported by an authentication plu…
COUNT_HANDSHAKE_ERRORS
Number of errors detected at the wire protocol lev…
COUNT_PROXY_USER_ERRORS
Number of errors detected when a proxy user is pro…
COUNT_PROXY_USER_ACL_ERRORS
Number of errors detected when a proxy user is pro…
COUNT_AUTHENTICATION_ERRORS
Number of errors where authentication failed.
COUNT_SSL_ERRORS
Number of errors due to TLS problems.
COUNT_MAX_USER_CONNECTIONS_ERRORS
Number of errors due to the per-user quota being e…
COUNT_MAX_USER_CONNECTIONS_PER_HOUR_ERRORS
Number of errors due to the per-hour quota being e…
COUNT_DEFAULT_DATABASE_ERRORS
Number of errors due to the user not having permis…
COUNT_INIT_CONNECT_ERRORS
Number of errors due to statements in the init_con…
COUNT_LOCAL_ERRORS
Number of local server errors, such as out-of-memo…
COUNT_UNKNOWN_ERRORS
Number of unknown errors that cannot be allocated …
FIRST_SEEN
Timestamp of the first connection attempt by the I…
LAST_SEEN
Timestamp of the most recent connection attempt by…
FIRST_ERROR_SEEN
Timestamp of the first error seen from the IP.
LAST_ERROR_SEEN
Timestamp of the most recent error seen from the I…
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