运维 - 阿里云服务器 mysqldump导出sql文件，在导入的过程中报权限错误

Question

写了一个php脚本做定时复制数据库的工作
(1. 不要问我为什么不用linux 2.不要问我为什么不用主从同步。都是业务需要 我也没办法。)

<?php
error_reporting(0);
$DB = [
    'remote'=>[
        "dsn"=>"mysql:host=xxx.xxx.xxx.xxx;dbname=dbname",
        "ip"=>"xxx.xxx.xxx.xxx",
        "username"=>"username",
        "password"=>"password"
    ],
    'local'=>[
        "dsn"=>"mysql:host=xxx.xxx.xxx.xxx;dbname=dbname",
        "ip"=>"xxx.xxx.xxx.xxx",
        "username"=>"username",
        "password"=>"password",
    ]
];
$conf = [
    'mysql_root'=>'D:\wamp\bin\mysql\mysql5.6.17\bin',
    'dump_folder'=>'G:\\',
    'db_name'=>'db_name',
    'table_name'=>'table_name'
];
$pdo = new PDO($DB["remote"]["dsn"], $DB["remote"]["username"], $DB["remote"]["password"]);
do {
    $result = $pdo->query("select max(id) as max from ".$conf['table_name'])->fetchAll();
    $max = $result[0]['max']; // 获取最大的id 
    // 通过mysqldump导出sql文件
    $dump_shell = $conf['mysql_root'].'\mysqldump -h'.$DB['local']['ip'].' -u'.$DB['local']['username'].' -p'.$DB['local']['password'].' -t fuscent --table '.$conf['table_name'].' --default-character-set=utf8 --single-transaction --skip-add-locks -w"id>'.$max.'">'.$conf['dump_folder'].'\\'.$conf['table_name'].'.sql';
    exec($dump_shell);
    // mysql < xxx.sql 导入sql文件
    $source_shell = $conf['mysql_root'].'\mysql -h'.$DB['remote']['ip'].' -u'.$DB['remote']['username'].' -p'.$DB['remote']['password'].' '.$conf['db_name'].' -e"'.$conf['dump_folder'].'\\'.$conf['table_name'].'".sql"';
    exec($source_shell);
    sleep(60); // 等待*秒钟
} while (true);

无论在导入的过程中使用

source xxx.sql

或者

mysql < xxx.sql

的方法，都会报出以下错误

ERROR 1227 (42000) at line 18: Access denied; you need (at least one of) the SUPER privilege(s) for this operation

请问这是为什么啊？我的权限也没有问题啊。有人遇到过这种情况吗？

Answer 1

Global operations such as import operations must use the root account.