21.32.1 The INFORMATION_SCHEMA CONNECTION_CONTROL_FAILED_LOGIN

21.32.1 The INFORMATION_SCHEMA CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS Table
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21.32.1 The INFORMATION_SCHEMA CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS Table

This table provides information about the current number of consecutive failed connection attempts per client user/host combination. The table was added in MySQL 5.6.35.

CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS has these columns:

USERHOST
The user/host combination of a client that has failed connection attempts, in 'user_name'@'host_name' format.
FAILED_ATTEMPTS
The current number of consecutive failed connection attempts for the USERHOST value. This counts all failed attempts, regardless of whether they were delayed. The number of attempts for which the server added a delay to its response is the difference between the FAILED_ATTEMPTS value and the connection_control_failed_connections_threshold system variable value.

Notes:

The CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS plugin must be activated for this table to be available, and the connection_control plugin must be activated or the table contents will always be empty. See Section 6.5.2, “The Connection-Control Plugin”.
The table contains rows only for clients that have had one or more consecutive failed connection attempts without a subsequent successful attempt. When a client connects successfully, its failed-connection count is reset to zero and the server removes any row corresponding to the client.
Assigning a value to the connection_control_failed_connections_threshold system variable at runtime resets all accumulated failed-connection counters to zero, which causes the table to become empty.