Mysqlのレプリケーションステータスの確認コマンド

SHOW SLAVE STATUS によって返されるフィールドについて説明は参考に貼ってあるリファレンスを見る。

$ mysql -h {{ host }} -u{{ user }} -p -p -e 'SHOW SLAVE STATUS\G'

Enter password:
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: XXX.XXX.XXX.XXX
                  Master_User: sample-repl
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysqld-bin.000001
          Read_Master_Log_Pos: 14900000
               Relay_Log_File: relaylog.012729
                Relay_Log_Pos: 1000
        Relay_Master_Log_File: mysqld-bin.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          Replicate_Ignore_DB:
           Replicate_Do_Table:
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table:
  Replicate_Wild_Ignore_Table:
                   Last_Errno: 0
                   Last_Error:
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 14900000
              Relay_Log_Space: 4500
              Until_Condition: None
               Until_Log_File:
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File:
           Master_SSL_CA_Path:
              Master_SSL_Cert:
            Master_SSL_Cipher:
               Master_SSL_Key:
        Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error:
               Last_SQL_Errno: 0
               Last_SQL_Error:
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 1
                  Master_UUID: 3e11fa47-71ca-11e1-9e33-c80aa9429562
             Master_Info_File: /var/mysqld.2/data/master.info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
           Master_Retry_Count: 10
                  Master_Bind:
      Last_IO_Error_Timestamp:
     Last_SQL_Error_Timestamp:
               Master_SSL_Crl:
           Master_SSL_Crlpath:
           Retrieved_Gtid_Set: 3e11fa47-71ca-11e1-9e33-c80aa9429562:1-5
            Executed_Gtid_Set: 3e11fa47-71ca-11e1-9e33-c80aa9429562:1-5
                Auto_Position: 1

参考

MySQL :: MySQL 5.6 リファレンスマニュアル :: 13.7.5.35 SHOW SLAVE STATUS 構文