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‘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 |
+----------------------+-------------------+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！
LeetCode: Length of Last Word [057],布布扣,bubuko.com
LeetCode: Length of Last Word [057]
原文：http://blog.csdn.net/harryhuang1990/article/details/26811823