我已经为我的生产数据库设置了一个从数据库服务器，但是当我检查 show slave status 时，我注意到在 master 后面几秒钟内有一个超级大的数字。
这是输出：
Slave_IO_State: Waiting for master to send event
Master_Host: 1.2.3.4
Master_User: replicator
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000173
Read_Master_Log_Pos: 15909435
Relay_Log_File: mysqld-relay-bin.000079
Relay_Log_Pos: 91173356
Relay_Master_Log_File: mysql-bin.000093
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: 91173210
Relay_Log_Space: 8179978166
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: 486330
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
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