昨天同事在做主从时,从库报如下错误:
Got fatal error 1236 from master when reading data from binary log: ‘Misconfigured master - server id was not set‘
粗粗看好像是master的server-id没有设置,但同事做如下查询:
备库采集: [email protected] Fri May 23 14:18:59 2014 14:18:59 [(none)]> show variables like ‘%server_id%‘; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | server_id | 2 | +---------------+-------+ 主库采集: mysql> show variables like ‘%server%‘; +----------------------+-------------------+ | Variable_name | Value | +----------------------+-------------------+ | character_set_server | latin1 | | collation_server | latin1_swedish_ci | | server_id | 1 | +----------------------+-------------------+
此时,复制环境的server-id确实是全局唯一的。为何报错?
由于业务是用于存储hadoop的元数据,之前MySQL版本较低,同事用了比master版本高的slave,本以为是这个原因,但在MySQL 的bug列表上发现:
该发现否定了我们之前的判断,经过同事那边的测试,也确实是这个bug :-)
祝周末愉快,
Good Luck!
MySQL bug:server-id默认被自动置为1
时间: 2024-10-09 05:35:00