说明：当开启mysql数据库主从时，会产生大量如mysql-bin.*log的文件，这会大量耗费您的硬盘空间。mysql-bin.1mysql-bin.2mysql-bin.3mysql-bin.4mysql-bin.5…有三种解决方法：1.关闭mysql主从，关闭binlog；2.开启mysql主从，设置expire_logs_days；3.手动清除binlog文件，PURGEMASTERLOGSTO‘MySQL-bin.′;实现：1.关闭mysql主从，关闭binlog#vim/etc/my.cnf//注释掉log-bin,binlog_format#ReplicationMasterServer(default)#binaryloggingisrequiredforreplication#log-bin=mysql-bin#binaryloggingformat-mixedre
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