mysql - kan jeg spørge, hvor mange connect_errors en given vært gav?

Du kan prøve at læse fra performance_schema.host_cache . Dette er en dynamisk visning af den interne værtscache, som sporer fejl pr. vært.

Som du sikkert ved, nulstilles de data, der spores af værtscachen, når du udfører sætningen FLUSH HOSTS .

Du skal bruge MySQL 5.6 og have performance_schema aktiveret (hvilket det skal være som standard).

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