主从(master/slave)默认引擎不一致导致复制失败解决
同事告知，一台slave服务器复制中断，查看slave服务器,如下错误
Error 'Specified key was too long; max keylength is 1000 bytes' on query
mysql> show slave status \G;
*************************** 1. row***************************
Slave_IO_State: Waiting formaster to send event
Master_Host: 192.xxx.xxx.146
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.004369
Read_Master_Log_Pos: 717957570
Relay_Log_File: relay-bin.013649
Relay_Log_Pos: 571890895
Relay_Master_Log_File: mysql-bin.004368
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: 1071
Last_Error: Error 'Specified key was too long; max key length is 1000 bytes' onquery. Default database: 'analyse_xxx'. Query: 'CREATE TABLE`meta_topic_scan` ( `domain` varchar(200) NOT NULL COMMENT '' , `topic_name`varchar(200) NOT NULL COMMENT '' , `topic_url` varchar(200) NOT NULL COMMENT '', `topic_pv` int NULL DEFAULT 0 COMMENT '' , `topic_uv` int NULL DEFAULT 0COMMENT '' , `pv` int NULL DEFAULT 0 COMMENT '' , `uv` int NULL DEFAULT 0COMMENT '' , `shopcart_pv` int NULL DEFAULT 0 COMMENT ''
Skip_Counter: 0
Exec_Master_Log_Pos: 571890750
Relay_Log_Space: 1802530754
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: 1071
Last_SQL_Error: Error 'Specified keywas too long; max key length is 1000 bytes' on query. Default database:'analyse_product'. Query: 'CREATE TABLE
`meta_topic_scan` ( `domain` varchar(200)NOT NULL COMMENT '' , `topic_name` varchar(200) NOT NULL COMMENT '' ,`topic_url` varchar(200) NOT NULL COMMENT '' , `topic_pv` int NULL DEFAULT 0COMMENT '' , `topic_uv` int NULL DEFAULT 0 COMMENT '' , `pv` int NULL DEFAULT 0COMMENT '' , `uv` int NULL DEFAULT 0 COMMENT '' , `shopcart_pv` int NULL DEFAULT0
1 row in set (0.00 sec)
ERROR:
No query specified
创建表竟然失败,索引长度超过了最大值1000，看看报错日志
[root@db~]# tail -n 500 /my/data/mysql/dbxxxxxx.err
130606 10:57:20 [ERROR] Slave SQL: Error'Specified key was too long; max key length is 1000 bytes' on query. Defaultdatabase: 'analyse_xxx'. Query: 'CREATE TABLE
`meta_topic_scan` ( `domain` varchar(200)NOT NULL COMMENT '' , `topic_name` varchar(200) NOT NULL COMMENT '' ,`topic_url` varchar(200) NOT NULL COMMENT '' , `topic_pv` int
NULL DEFAULT 0 COMMENT '' , `topic_uv` intNULL DEFAULT 0 COMMENT '' , `pv` int NULL DEFAULT 0 COMMENT '' , `uv` int NULLDEFAULT 0 COMMENT '' , `shopcart_pv` int NULL DEFAULT 0
1