6.1兒童節特別禮物,mysql同步失敗
阿新 • • 發佈:2017-06-01
mysql同步失敗
今天是61兒童節,是一個很難忘的日子,早上9到公司上班,事來了,由於開發的疏忽,把一個庫導入到從庫裏,然後當開發發現導錯數據庫服務器,也沒向我們運維人員反映,當時查看了主庫是沒有數據,然後開發又在主庫導了,結果同步出錯,如下:
mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.0.155 Master_User: myslave Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000001 Read_Master_Log_Pos: 804 Relay_Log_File: relay-log-bin.000002 Relay_Log_Pos: 253 Relay_Master_Log_File: mysql-bin.000001 Slave_IO_Running: Yes Slave_SQL_Running: No Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 1008 Last_Error: Error ‘Can‘t drop database ‘data‘; database doesn‘t exist‘ on query. Default database: ‘data‘. Query: ‘drop database data‘ Skip_Counter: 0 Exec_Master_Log_Pos: 562 Relay_Log_Space: 949 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: 1008 Last_SQL_Error: Error ‘Can‘t drop database ‘data‘; database doesn‘t exist‘ on query. Default database: ‘data‘. Query: ‘drop database data‘ Replicate_Ignore_Server_Ids: Master_Server_Id: 1 1 row in set (0.00 sec) 提示:錯誤信息是無法撤銷數據庫,數據庫不存在。‘,1008錯誤 從先創建了這個庫,然後主又創建了,至此導致數據庫同步沖突
解決方法:
stop slave; set global sql_slave_skip_counter=1; start slave;
從庫狀態:
mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.0.155 Master_User: myslave Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000001 Read_Master_Log_Pos: 804 Relay_Log_File: relay-log-bin.000004 Relay_Log_Pos: 253 Relay_Master_Log_File: mysql-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: 804 Relay_Log_Space: 553 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 1 row in set (0.00 sec)
已經ok了
1)對於普通的互聯網業務,忽略問題不是很大。當然,要確認不影響公司業務的前提下。
2)企業場景解決主從同步,比主從不一致對前面更重要,然後如果主從數據一致也很重要,在找個時間恢復下這個從庫。
主從數據不一致更重要還是保持主從同步持續狀態更重要。這樣我們要我們根據業務選擇。
本文出自 “小菜鳥” 博客,請務必保留此出處http://baishuchao.blog.51cto.com/12918589/1931271
6.1兒童節特別禮物,mysql同步失敗