报错信息: InnoDB: An optimized (without redo logging) DDLoperation has been performed. All modified pages may not have been flushed to the disk yet. 为了解决这个错误,percona新加了三个参数xtrabackup --lock-ddl, xtrabackup --lock-ddl-timeout, xtrabackup --lock-ddl-per-ta…

找到mysql的配置文件目录 my.cnf interactive_timeout = 120wait_timeout = 120max_allowed_packet = 500M 在导入过程中可能会遇到报错或者导入不全的情况 还需在配置文件中加入 sql_mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION…

异常:java.sql.SQLException: Incorrect string value: '\xF0\x9F\x92\x94' for column 'name' at row 1 解决: MySql的utf-8编码只支持3个字节的数据,而移动端的emoji是四个字节的数据,如果直接往utf-8编码的数据库中插入表情,就会报上面的错误. utf8mb4编码兼容utf-8,是utf-8编码的超集,能存储4字节的表情字符. 1,将存储表情字符的数据库表改为utf8mb4, 2,utf8mb…

mysql -u root -p databasename < db.sql 数据库导入数据时,MySQL收到下面异常:ERROR 1153 (08S01): Got a packet bigger than 'max_allowed_packet' bytes. 这是因为没有调整mysql的默认配置,默认最大只能处理16M的文件,而我要导入的伪造数据有50M的一个SQL. 于是调整配置文件: /etc/my.cnf 修改mysql的最大允许包大小 在[mysqld]部分(不在这部分没用)添加一…

一.安装依赖包 [root@db01 ~]# yum install -y lrzsz [文件上传/下载] [root@db01 ~]# yum -y install xfsprogs [安装磁盘格式化命令mkfs.xfs] 二.创建相关目录 [root@db01 ~]# mkdir -p /server/tools [root@db01 ~]# mkdir /application [应用程序存放目录] [root@db01 ~]# mkdir /data [数据文件存放目录] 三.创建一块新…

用python3.6.5创建mysql库时出现如下报错,虽然报错,但是数据库可以插入成功. D:\python3\lib\site-packages\pymysql\cursors.py:170: Warning: (3719, "'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider usin…

MySQL 表与字段编码格式报错 一.数据库,表,字段编码格式都为latin1(iso-8859-1) .当数据保存到数据库后,中文显示乱码. 解决办法: 1.在访问数据库连接串中添加编码格式: <add key="MySqlConnectionString" value="Server=127.0.0.1;Port=3306;Uid=ttt;Pwd=ttt;Database=test_db;innercharacterset=gb2312;charset=gb2312…

在给mysql数据库备份时,报错: mysqldump: Got error: 145: Table '.\shengdaxcom\pre_forum_thread' is marked as crashed and should be repaired when using LOCK TABLES 如上错误的解决方法如下:1.进入数据库对该表进行检测: mysql> check tables pre_forum_thread;+------------------------------+--…

egg 连接 mysql 的 docker 容器,报错:Client does not support authentication protocol requested by server; consider upgrading MySQL client 解决办法: mysql 中执行如下语句: mysql> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'yourPassword'; 附: 'root'@'loc…

1.TP框架中 出现如下错误: 访问网站 http://192.168.0.204/ STORAGE_WRITE_ERROR_:./Runtime/Cache/Home/51620d75af91aa77adc53082d1113d54.php错误位置FILE: /www/wwwroot/default/ThinkPHP/Library/Think/Storage/Driver/File.class.php LINE: 47 TRACE#0 /www/wwwroot/default/ThinkPH…