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MySQL5.6从库修改主机名同步停止的解决办法

發布時間:2025/3/17 数据库 26 豆豆
生活随笔 收集整理的這篇文章主要介紹了 MySQL5.6从库修改主机名同步停止的解决办法 小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

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環境:MySQL5.6 + CentOS6.5

  問題描述:從庫修改主機名后,從庫的同步沒有自動啟動,用start slave命令開啟失敗

  從庫修改主機名后,從庫的同步沒有自動啟動,查看狀態如下:

  mysql> show slave statusG

  *************************** 1. row ***************************

  Slave_IO_State:

  Master_Host: 192.168.1.2

  Master_User: manager_slave

  Master_Port: 3306

  Connect_Retry: 10

  Master_Log_File: logbin.000053

  Read_Master_Log_Pos: 588641410

  Relay_Log_File: zzstep-relay-bin.000015

  Relay_Log_Pos: 38778474

  Relay_Master_Log_File: logbin.000053

  Slave_IO_Running: No

  Slave_SQL_Running: No

  Replicate_Do_DB:

  Replicate_Ignore_DB: mysql,information_schema,performance_schema

  Replicate_Do_Table:

  Replicate_Ignore_Table:

  Replicate_Wild_Do_Table:

  Replicate_Wild_Ignore_Table: hn.sphinx%

  Last_Errno: 0

  Last_Error:

  Skip_Counter: 0

  Exec_Master_Log_Pos: 588641410

  Relay_Log_Space: 0

  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: NULL

  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: 0

  Master_UUID: 8ce09c46-a7be-11e4-8e06-0050569f4b5b

  Master_Info_File: /opt/mysql_data/master.info

  SQL_Delay: 0

  SQL_Remaining_Delay: NULL

  Slave_SQL_Running_State:

  Master_Retry_Count: 86400

  Master_Bind:

  Last_IO_Error_Timestamp:

  Last_SQL_Error_Timestamp:

  Master_SSL_Crl:

  Master_SSL_Crlpath:

  Retrieved_Gtid_Set:

  Executed_Gtid_Set:

  Auto_Position: 0

  1 row in set (0.00 sec)

  使用start slave命令開啟失敗:

  mysql> start slave;

  ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository

  使用reset slave命令解決:

  mysql> reset slave;

  Query OK, 0 rows affected (0.01 sec)

  mysql> start slave;

  Query OK, 0 rows affected (0.03 sec)

  mysql> show slave statusG

  *************************** 1. row ***************************

  Slave_IO_State: Queueing master event to the relay log

  Master_Host: 192.168.1.2

  Master_User: manager_slave

  Master_Port: 3306

  Connect_Retry: 10

  Master_Log_File: logbin.000021

  Read_Master_Log_Pos: 11215004

  Relay_Log_File: db_mysql_02-relay-bin.000007

  Relay_Log_Pos: 22097

  Relay_Master_Log_File: logbin.000005

  Slave_IO_Running: Yes

  Slave_SQL_Running: Yes

  Replicate_Do_DB:

  Replicate_Ignore_DB: mysql,information_schema,performance_schema

  Replicate_Do_Table:

  Replicate_Ignore_Table:

  Replicate_Wild_Do_Table:

  Replicate_Wild_Ignore_Table: hn.sphinx%

  Last_Errno: 0

  Last_Error:

  Skip_Counter: 0

  Exec_Master_Log_Pos: 21937

  Relay_Log_Space: 13113813

  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: 1071515

  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: 11

  Master_UUID: 8ce09c46-a7be-11e4-8e06-0050569f4b5b

  Master_Info_File: /opt/mysql_data/master.info

  SQL_Delay: 0

  SQL_Remaining_Delay: NULL

  Slave_SQL_Running_State: creating table

  Master_Retry_Count: 86400

  Master_Bind:

  Last_IO_Error_Timestamp:

  Last_SQL_Error_Timestamp:

  Master_SSL_Crl:

  Master_SSL_Crlpath:

  Retrieved_Gtid_Set:

  Executed_Gtid_Set:

  Auto_Position: 0

  1 row in set (0.00 sec)

  mysql>

  總結:

  由于修改主機名后,relay-log的名稱發生變化,導致文件IO失敗,reset slave可以重新定位。

轉載于:https://my.oschina.net/xunzhizhe/blog/1036641

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