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SHOW REPLICA STATUS 结果简化分析

2023-11-02 10:32  abce  阅读(223)  评论(0)    收藏  举报 
root@localhost (none)>show replica status\G
*************************** 1. row ***************************
             Replica_IO_State: Waiting for source to send event
                  Source_Host: 192.168.1.1
                  Source_User: repl
                  Source_Port: 3306
                Connect_Retry: 60
              Source_Log_File: binlog.000501  	#i/o thread当前正在读取的主库的binary日志文件
          Read_Source_Log_Pos: 1020321958		#i/o thread当前正在读取的主库的binary日志文件中的位置
               Relay_Log_File: relay.001313		#sql thread当前正在处理的relay日志文件
                Relay_Log_Pos: 203735030		#sql thread当前正在处理的relay日志文件的位置
        Relay_Source_Log_File: binlog.000500	#sql thread最近执行事件的主库的binary日志文件
           Replica_IO_Running: Yes
          Replica_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_Source_Log_Pos: 203734820		#sql thread当前在处理的主库的二进制日志的位置，可以使用该信息做新的复制节点
              Relay_Log_Space: 2667599650
              Until_Condition: None
               Until_Log_File: 
                Until_Log_Pos: 0
           Source_SSL_Allowed: No
           Source_SSL_CA_File: 
           Source_SSL_CA_Path: 
              Source_SSL_Cert: 
            Source_SSL_Cipher: 
               Source_SSL_Key: 
        Seconds_Behind_Source: 1057
Source_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error: 
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Source_Server_Id: 2508
                  Source_UUID: cd87eea-e3d8-11ed-bacd-123456b0rd4c
             Source_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
    Replica_SQL_Running_State: Waiting for replica workers to process their queues
           Source_Retry_Count: 86400
                  Source_Bind: 
      Last_IO_Error_Timestamp: 
     Last_SQL_Error_Timestamp: 
               Source_SSL_Crl: 
           Source_SSL_Crlpath: 
           Retrieved_Gtid_Set: cd87eea-e3d8-11ed-bacd-123456b0rd4c:79714658-92160430
            Executed_Gtid_Set: cd87eea-e3d8-11ed-bacd-123456b0rd4c:1-92160425
                Auto_Position: 1
         Replicate_Rewrite_DB: 
                 Channel_Name: 
           Source_TLS_Version: 
       Source_public_key_path: 
        Get_Source_public_key: 1
            Network_Namespace: 
1 row in set (0.00 sec)

root@localhost (none)>


借用下面的这张图，可以帮助理解show replica status的结果：