大清早收到一个MySQL的自定义语言告警 ：replication interrupt，看来是主从同步报错了。
登陆MySQL，执行 show slave status \G 发现salve已经停止了，于是使用 start slave启动，结果有如下报错：
ERROR 1201 (HY000): Could not initialize master info structure; more error messages can be found in the MySQL error log
搜索了下，网上给出的解决办法基本都是：
①、执行 reset slave；
②、重新执行 change master：
mysql> change master to
-> master_host="192.168.1.100",
-> master_port=3306,
-> master_user="repl",
-> master_password="repl",
-> master_log_file="mysql-bin.000051",
-> master_log_pos=254105;
③、执行 start slave
于是试了下，发现还是一样的报错，顺着报错信息，看了下error 日志：
160324 6:40:10 [ERROR] log *** glibc detected *** /data/mysql/bin/mysqld: corrupted double-linked list: 0x00002ab038100ab0 *** listed in the index, but failed to stat
160324 6:40:10 [ERROR] Error counting relay log space
160324 6:40:10 [ERROR] Failed to initialize the master info structure
160324 6:40:10 [Note] Event Scheduler: Loaded 0 events
160324 6:40:10 [Note] /data/mysql/bin/mysqld: ready for connections.
Version: "5.5.13-log" socket: "/data/mysql/data/mysqld.sock" port: 3306 Source distribution
160324 9:33:41 [ERROR] log *** glibc detected *** /data/mysql/bin/mysqld: corrupted double-linked list: 0x00002ab038100ab0 *** listed in the index, but failed to stat
160324 9:33:41 [ERROR] Error counting relay log space
160324 9:33:54 [ERROR] log *** glibc detected *** /data/mysql/bin/mysqld: corrupted double-linked list: 0x00002ab038100ab0 *** listed in the index, but failed to stat
160324 9:33:54 [ERROR] Error counting relay log space
160324 9:35:29 [ERROR] log *** glibc detected *** /data/mysql/bin/mysqld: corrupted double-linked list: 0x00002ab038100ab0 *** listed in the index, but failed to stat
160324 9:35:29 [ERROR] Error counting relay log space
160324 9:37:47 [ERROR] log *** glibc detected *** /data/mysql/bin/mysqld: corrupted double-linked list: 0x00002ab038100ab0 *** listed in the index, but failed to stat
160324 9:37:47 [ERROR] Error counting relay log space
发现其中频繁出现如下错误：
ist: 0x00002ab038100ab0 *** listed in the index, but failed to stat
于是，把MySQL 数据文件目录下的 index info 文件都看了一遍，结果发现 Centos64-relay-bin.index文件中出现异常内容：MySQL主从报错解决：Failed to initialize the master info structure
这个文件正常情况应该是记录了 bin-log文件名称才对，比如：
./Centos64-relay-bin.002064
./Centos64-relay-bin.002065
./Centos64-relay-bin.002066
./Centos64-relay-bin.002067
./Centos64-relay-bin.002068
./Centos64-relay-bin.002069
./Centos64-relay-bin.002070
因此，将 Centos64-relay-bin.index 这个文件mv 重命名，然后重启MySQL，重新按照上文从网上照来的的步骤：reset、change master、start 成功搞定！
如果你也遇到类似问题，可以先按照网上提供的三个步骤试试，如果还是和本文类似的报错，请特别看下MySQL数据目录下的这几种文件：
mysql-bin.index
relay-log.info
主机名-relay-bin.index
可以尝试将他们重命名或移走，重启MySQL再走一遍上面的三个步骤应该可以搞定了！
mysql 主从配置_MySQL主从配置提示Failed to initialize the master info structure错误
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