ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository
在一台主机上增加一个slave，启动的时候报
[ERROR] Slave SQL: Slave failed to initialize relay log info structure from the repository, Error_code: 1872
原因：检查my.cnf，原来没指定relay_log，mysql默认产生的relay_log名被该server上的另一个mysql slave占用了。
解决方法：
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1.在my.cnf中添加relay_log=/db/mysql56/logs/relay_98_3326 |
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2. reset slavemysql>reset slavemysql>change master tomaster_host=‘192.168.0.38‘,master_user=‘repl‘,master_password=‘slave‘,master_port=3306,master_log_file=‘mysql-bin.001229‘,master_log_pos=15970007;mysql>start slave;
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