MySQL bug:server-id默许被自动置为1
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2022-04-16 23:16:49
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MySQL bug:server-id默认被自动置为1 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
MySQL bug:server-id默认被自动置为1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:
root@localhost 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!
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