Run the following SQL statement to generate table data:source/usr/share/mysql/mysql_system_tables.sql;Then,exit the database command-line interface and restart MySQL.View and record the logs statement in the set global ...
you cannot directly release the physical storage.Applicable to RDS MySQL 5.6 instances,RDS MySQL 5.7 instances,and RDS MySQL 8.0 instances Method 1:upgrade the disk space to unlock the instance.After unlocking the instance...
Overview This topic describes how to read/write splitting to apsaradb RDS for MySQL instances.Detail The MySQL instance read/write splitting involves the following knowledge points.Transactions and stored procedure are ...
Overview This topic describes how to export slow MySQL log data to a local disk.Detail Alibaba Cloud reminds you that:Before you perform operations that may cause risks,such as modifying instance configurations or data,we ...
Problem description When you create a table in an apsaradb RDS for MySQL instance,the following error occurs.ERROR 1118(42000):Row size too large.The maximum row size for the used table type,not counting BLOBs,is 65535....
Problem description RDS MySQL 8.0"/tmp/sql1a324_1 f4 a_8b' is full"error occurs.Solution Alibaba Cloud reminds you that:Before you perform operations that may cause risks,such as modifying instance configurations or data,...
Overview This topic describes how to view the locks of MySQL databases.Procedure Alibaba Cloud reminds you that:Before you perform operations that may cause risks,such as modifying instance configurations or data,we ...
Overview When apsaradb for MySQL is used,a Waiting for an event from Coordinator thread is detected in the session.Detail Alibaba Cloud reminds you that:Before you perform operations that may cause risks,such as modifying ...
问题描述 MySQL执行请求报错锁超时：Lock wait timeout exceeded;try restarting transaction 解决方案 1、5.6和5.7版本 查看锁等待关系，获取blocking_trx_id select*from information_schema.innodb_lock_waits;根据trx_id（第1步获取到...
Overview MySQL performs schema changes(such as adding fields,modifying field attributes,adding indexes,and modifying indexes)when a large amount of data is processed.The risk of locking tables must be considered because ...
Problem description When you execute the create table XXX select XXX SQL statement in apsaradb for MySQL to create a table and copy the old table data,the following error occurs.1786-Statement violates GTID consistency:...
Problem description The Binlog disk usage in the apsaradb RDS for MySQL instance is high.If the disk space is full,the instance is locked and RDS cannot perform read and write operations.Possible cause Binlogs occupy a ...
which is normal.Therefore,this type of alarm is a false positive caused by unreasonable setting of monitoring indicators.By default,the buffer pool of apsaradb RDS for MySQL uses 80%of the instance memory size.This ...
Problem description When you use DMS to export data to an apsaradb RDS for MySQL instance,the following error message is displayed.The MySQL server has been disconnected due to the long execution time.In this case,adjust ...
Issue After you connect to the MySQL database through the client,the database returns the following message.Too many connections Cause The possible causes are listed as follows:The database performance does not meet ...
Overview If you use the read/write splitting function of apsaradb RDS for MySQL,and a query statement is routed to the primary instance,the QPS of the primary instance is higher than that of the read-only instances,see to ...
Description A replication delay exists between the apsaradb RDS for MySQL moderator instance and its read-only instance.Causes Cause 1:you have executed DDL statements that involve large amounts of data.DDL statements that...
问题描述 MySQL读取binlog文件报错：File is not a binary log file 解决方案 在RDS控制台 备份恢复 日志备份（如截图），下载要读取的binlog到本地，在本地解析 问题原因 mysqlbinlog命令去解析的文件必须是show binary logs 里面可获取到...
问题描述 MySQL8.0 使用asText函数报错，ERROR 1305（42000)：FUNCTION db_name.asText does not exist 解决方案 asText()在MySQL8.0已经弃用，使用 ST_AsText()函数替代，如 select ST_asText(字段名)from 表名;适用范围：MySQL 8.0
such as CPU,I/O,IPC,and SWAP,during the execution of an SQL statement.Usage of Profiling The following content shows the basic usage of Profiling in MySQL.For more information,see MySQL official documentation.Step 1:enable...
you can clone instances to restore individual databases or tables.For more information,see recover MySQL data.Application scope ApsaraDB RDS instance$icmsDocProps={'productMethod':'alynx_mt','language':'en-US',};
问题描述 RDS MySQL一键上传binlog，日志空间没有变化，实例一直处于锁定状态 解决方案 1、实例锁定后，允许删除数据，如果有可以清理的数据，可以直接truncate\drop掉，会快速释放出空间。2、如果不能清理数据，建议考虑扩容磁盘。3、如果...
您的网站程序调试完成并上传到云虚拟主机后，连接云虚拟主机数据库时，提示“cannot connect to MySQL 4.1+using the old insecure authentication”错误。本文介绍这种情况的可能原因和解决方案。问题现象 报错信息如下。mysqlnd cannot ...
步骤一：安装Apache 运行以下命令安装Apache服务及扩展包。yum-y install httpd httpd-manual mod_ssl mod_perl 运行 httpd-v 命令可查看Apache的版本号。依次运行以下命令启动Apache服务并设置服务开机自启动。...yum-y install ...
dnf install php php-curlphp-domphp-exifphp-fileinfophp-fpmphp-gdphp-hashphp-jsonphp-mbstringphp-mysqliphp-opensslphp-pcrephp-xml libsodium运行以下命令查看PHP版本。php-v查看版本结果如下所示。PHP 7.3.5(cli)(built:Apr 30 2019 ...
系统不支持MySQL。PHP不支持MySQL扩展。其他类似错误信息，示例如下。问题原因 因为MySQL扩展功能自PHP 5.5.0版本开始被废弃，并且从PHP 7.0.0版本开始被移除，当网站迁移到新服务器时一般会迁移到PHP 7.0.0及以上版本，由于网站迁移后的新...
步骤一：安装Apache 运行以下命令，安装Apache服务及扩展包。yum-y install httpd httpd-manual mod_ssl mod_perl 运行以下命令，查看Apache的版本号。httpd-v 回显信息类似如下所示，表示Apache的版本号为2.4.6。...yum-y install ...
LNMP架构是一种流行的网站服务器解决方案，它结合了Linux操作系统、Nginx Web服务器、MySQL数据库和PHP编程语言。本文介绍部署LNMP环境的几种方式，以及各自的适用场景，您可以按需选择任意一种部署LNMP环境的方式。LNMP架构 Linux：作为...
you must install php-mysql 5.1.x.If you use a Windows operating system,you must install php_MySQL.dll. If you want to connect to an AnalyticDBMySQL cluster over the Internet,you must add the IP address of the device from which you...
开通方式：在控制台选择 数据库连接 宽表引擎，在 宽表引擎 页签单击 开通公网地址。通过专有网络访问Lindorm实例，$lindorm_addr 请填写MySQL兼容地址对应的 专有网络 地址。通过公网访问Lindorm实例，$lindorm_addr 请填写MySQL兼容地址...
This topic walks you through building a LNMP(Linux,Nginx,MySQL,PHP)stack on an Elastic Compute Service(ECS)instance using a package manager.It supports multiple operating systems,including Alibaba Cloud Linux,CentOS,and ...
本文为您介绍迁移 MySQL 数据库的数据至 OceanBase 数据库 MySQL 租户时，数据类型转换的支持范围。支持的转换类型 数值类型 分类 MySQL 数据库 OceanBase 数据库 MySQL 租户 整型 支持指定字段长度，SIGNED、UNSIGNED、ZEROFILL。INT INT ...
警告 安装前请务必做好服务器数据备份（ECS如何创建快照），避免安装失败、服务器异常或数据覆盖后...手动部署MySQL数据库（Alibaba Cloud Linux 2）手动部署MySQL数据库（CentOS 7）手动部署MySQL（CentOS 8）手动部署MySQL数据库（Windows）
您可以根据业务需求使用DataX、DTS、canal或者Tapdata Cloud工具将MySQL数据库中的数据同步迁移到表格存储（Tablestore）中。使用场景 数据架构变化 如果现有业务对数据库并发读写需求、扩展性和可用性需求较高，或需要复杂的检索，原有...
本文档介绍在DataV中添加兼容MySQL数据库数据源的方法，以及相关参数配置说明。通过兼容MySQL数据库的数据源，您可以使用旧版本的MySQL数据库作为组件的数据源。前提条件 已准备好待添加的兼容MySQL数据库数据源。重要 您必须先将对应区域...
本文为您介绍迁移 MySQL 数据库的数据至 OceanBase 数据库 MySQL 租户时，MySQL 数据库执行的 DROP INDEX DDL 支持被数据传输的 DDL 同步组件转换，但 OceanBase 数据库 MySQL 租户不支持执行的场景。删除有外键依赖的 INDEX 有外键依赖的 ...
背景信息 LAMP（Linux+Apache+MySQL+PHP）网站架构是目前国际流行的Web框架，包括Linux操作系统、Apache网络服务器、MySQL数据库和PHP编程语言，所有组成产品均为开源软件。LAMP环境具有通用、跨平台、高性能、低价格的特点。模板示例 部署...
应用程序连接MySQL数据库时，可能会因为没有及时释放MySQL数据库的连接，使得连接数堆积且连接数量过多，从而导致新的连接请求无法连接到MySQL数据库，出现 Error:Too many connections 报错信息。本文介绍这种情况的可能原因和解决方案。...
本文为您介绍迁移 MySQL 数据库的数据至 OceanBase 数据库 MySQL 租户时，MySQL 数据库执行的 ALTER TABLE DDL 支持被数据传输的 DDL 同步组件转换，但 OceanBase 数据库 MySQL 租户不支持执行的场景。行内 CHECK 表达式中引用了其它列 ...