关于 MySQL Binlog 权限 MySQL Binlog 权限Check binlog statusshow variables like 'log_bin'; show variables like 'binlog_format'; MySQL Binlog权限需要三个权限 SELECT, REPLICATION SLAVE, REPLICATION CLIENTGRANT SELECT, REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'canal'@'%' IDENTIFIED BY 'canal'; 缺乏SELECT权限时，报错为com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Access denied for user 'canal'@'%' to database 'binlog' 缺乏REPLICATION SLAVE权限时，报错为java.io.IOException: Error When doing Register slave:ErrorPacket [errorNumber=1045, fieldCount=-1, message=Access denied for user 'canal'@'%' 缺乏REPLICATION CLIENT权限时，报错为com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Access denied; you need (at least one of) the SUPER, REPLICATION CLIENT privilege(s) for this operationBinlog为什么需要这些权限：Select权限代表允许从表中查看数据Replication client权限代表允许执行show master status,show slave status,show binary logs命令Replication slave权限代表允许slave主机通过此用户连接master以便建立主从 复制关系