mysql - dapatkah saya menanyakan berapa banyak connect_errors yang diberikan oleh host tertentu?

Anda dapat mencoba membaca dari performance_schema.host_cache . Ini adalah tampilan dinamis ke cache host internal, yang melacak kesalahan per host.

Seperti yang mungkin Anda ketahui, data yang dilacak oleh cache host disetel ulang saat Anda menjalankan pernyataan FLUSH HOSTS .

Anda harus menggunakan MySQL 5.6 dan mengaktifkan performance_schema (yang seharusnya secara default).

mysql> select * from host_cache limit 1\G
*************************** 1. row ***************************
                                        IP: 192.168.48.95
                                      HOST: app.mcappface.example.com
                            HOST_VALIDATED: YES
                        SUM_CONNECT_ERRORS: 0
                 COUNT_HOST_BLOCKED_ERRORS: 0
           COUNT_NAMEINFO_TRANSIENT_ERRORS: 0
           COUNT_NAMEINFO_PERMANENT_ERRORS: 0
                       COUNT_FORMAT_ERRORS: 0
           COUNT_ADDRINFO_TRANSIENT_ERRORS: 0
           COUNT_ADDRINFO_PERMANENT_ERRORS: 0
                       COUNT_FCRDNS_ERRORS: 0
                     COUNT_HOST_ACL_ERRORS: 0
               COUNT_NO_AUTH_PLUGIN_ERRORS: 0
                  COUNT_AUTH_PLUGIN_ERRORS: 0
                    COUNT_HANDSHAKE_ERRORS: 0
                   COUNT_PROXY_USER_ERRORS: 0
               COUNT_PROXY_USER_ACL_ERRORS: 0
               COUNT_AUTHENTICATION_ERRORS: 0
                          COUNT_SSL_ERRORS: 0
         COUNT_MAX_USER_CONNECTIONS_ERRORS: 0
COUNT_MAX_USER_CONNECTIONS_PER_HOUR_ERRORS: 0
             COUNT_DEFAULT_DATABASE_ERRORS: 0
                 COUNT_INIT_CONNECT_ERRORS: 0
                        COUNT_LOCAL_ERRORS: 0
                      COUNT_UNKNOWN_ERRORS: 0
                                FIRST_SEEN: 2018-03-01 19:54:39
                                 LAST_SEEN: 2018-03-19 16:13:06
                          FIRST_ERROR_SEEN: NULL
                           LAST_ERROR_SEEN: NULL