<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[lilingfeng1的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/lilingfeng1</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; lilingfeng1]]></copyright><item><title><![CDATA[达梦一主+备+异备+DEM管理]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/126280641</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/126280641</guid><author>lilingfeng1</author><pubDate>Thu, 11 Aug 2022 14:23:23 +0800</pubDate><description><![CDATA[达梦主+备+异备+DEM]]></description><category></category></item><item><title><![CDATA[DMDEM安装DSC\DW集群]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/126223863</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/126223863</guid><author>lilingfeng1</author><pubDate>Mon, 08 Aug 2022 11:17:26 +0800</pubDate><description><![CDATA[DMDEM安装DSC/DW集群]]></description><category></category></item><item><title><![CDATA[达梦数据库—DEM安装部署]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125847279</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125847279</guid><author>lilingfeng1</author><pubDate>Mon, 18 Jul 2022 13:34:27 +0800</pubDate><description><![CDATA[DEM安装部署]]></description><category></category></item><item><title><![CDATA[达梦数据库基础管理—联机执行SQL语句备份还原]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125558718</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125558718</guid><author>lilingfeng1</author><pubDate>Fri, 01 Jul 2022 17:29:39 +0800</pubDate><description><![CDATA[联机执行SQL语句备份还原]]></description><category></category></item><item><title><![CDATA[达梦数据库基础管理—备份与还原简介和原理]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125557624</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125557624</guid><author>lilingfeng1</author><pubDate>Fri, 01 Jul 2022 14:46:02 +0800</pubDate><description><![CDATA[备份与还原简介和原理]]></description><category></category></item><item><title><![CDATA[达梦数据库基础管理—用户管理和自主访问控制]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125398118</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125398118</guid><author>lilingfeng1</author><pubDate>Tue, 21 Jun 2022 21:25:09 +0800</pubDate><description><![CDATA[用户管理和自助访问控制]]></description><category></category></item><item><title><![CDATA[达梦数据库基础管理—表空间管理]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125398151</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125398151</guid><author>lilingfeng1</author><pubDate>Tue, 21 Jun 2022 20:58:38 +0800</pubDate><description><![CDATA[达梦数据库表空间管理]]></description><category></category></item><item><title><![CDATA[第四章—DMDSC集群动态扩展节点]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125320603</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125320603</guid><author>lilingfeng1</author><pubDate>Thu, 16 Jun 2022 18:04:01 +0800</pubDate><description><![CDATA[DMDSC动态扩展节点]]></description><category></category></item><item><title><![CDATA[第五章—DMDSC集群动态扩展节点失败还原]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125295862</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125295862</guid><author>lilingfeng1</author><pubDate>Wed, 15 Jun 2022 14:24:46 +0800</pubDate><description><![CDATA[DSC动态扩展失败处理]]></description><category></category></item><item><title><![CDATA[第三章 DMDSC+DW单机搭建]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125204940</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125204940</guid><author>lilingfeng1</author><pubDate>Thu, 09 Jun 2022 16:07:47 +0800</pubDate><description><![CDATA[DMDSC+DW单机搭建]]></description><category></category></item><item><title><![CDATA[第二章 DMDSC集群搭建]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125204426</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125204426</guid><author>lilingfeng1</author><pubDate>Thu, 09 Jun 2022 15:48:19 +0800</pubDate><description><![CDATA[DMDSC集群]]></description><category></category></item><item><title><![CDATA[第一章 DMDSC集群介绍]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125201403</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125201403</guid><author>lilingfeng1</author><pubDate>Thu, 09 Jun 2022 14:20:11 +0800</pubDate><description><![CDATA[DMDSC]]></description><category></category></item><item><title><![CDATA[不断的自我学习提高技术能力]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125120599</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125120599</guid><author>lilingfeng1</author><pubDate>Sat, 04 Jun 2022 12:38:27 +0800</pubDate><description><![CDATA[Oracle、达梦]]></description><category></category></item><item><title><![CDATA[值得学习借鉴的文章]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125105499</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125105499</guid><author>lilingfeng1</author><pubDate>Thu, 02 Jun 2022 18:50:30 +0800</pubDate><description><![CDATA[Oracle学习]]></description><category></category></item><item><title><![CDATA[DM大规模并行处理MPP]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125099788</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125099788</guid><author>lilingfeng1</author><pubDate>Thu, 02 Jun 2022 14:31:28 +0800</pubDate><description><![CDATA[DM大规模并行处理MPP]]></description><category></category></item><item><title><![CDATA[DW集群自动切换]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125048390</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125048390</guid><author>lilingfeng1</author><pubDate>Mon, 30 May 2022 16:05:58 +0800</pubDate><description><![CDATA[DW集群自动切换]]></description><category></category></item><item><title><![CDATA[DW集群手动切换搭建]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125047477</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125047477</guid><author>lilingfeng1</author><pubDate>Mon, 30 May 2022 15:40:09 +0800</pubDate><description><![CDATA[DW集群手动切换]]></description><category></category></item><item><title><![CDATA[DM集群架构及原理]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/125046067</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/125046067</guid><author>lilingfeng1</author><pubDate>Mon, 30 May 2022 15:22:18 +0800</pubDate><description><![CDATA[一、DM集群
DM集群包括：数据守护集群、读写分离集群、MPP主备集群。都是基于redo日志来实现的，不同的集群采用不同的redo日志归档类型。
DM单机：本地归档
数据守护集群：本地归档、实时归档、异步归档
读写分离集群：本地归档、即时归档
MPP主备集群：本地归档、实时归档
二、DM归档类型
本地归档：LOCAL ARCHIVE，最多可设置8个。写入redo日志到本地归档文件，在redo日志写入日志文件后触发。
实时归档：REALTIME ARCHIVE，最多可设置8个。在redo日志写入到日志文件前，]]></description><category></category></item><item><title><![CDATA[DM8_dexp和dimp]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/124984506</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/124984506</guid><author>lilingfeng1</author><pubDate>Thu, 26 May 2022 15:01:45 +0800</pubDate><description><![CDATA[一、工具简介
逻辑导出（dexp/dexpdp）和逻辑导入（dimp/dimpdp）是DM数据库的两组命令行工具，用来对DM数据库进行逻辑备份和逻辑还原。逻辑备份和逻辑还原需要数据库在正常的运行过程中进行。默认安装完DM数据库，就会有以上的命令行工具。
逻辑导出和逻辑导入数据库对象分为四种级别：数据库级、用户级、模式级和表级别。四种级别模式独立互斥，不能同时存在。

数据库级（FULL）：导出或导入整个数据库中的所有对象
用户级（OWNER）：导出或导入一个或多个用户所拥有的所有对象
模式级（SCHEMAS]]></description><category></category></item><item><title><![CDATA[达梦数据库Linux环境下图形化和命令行安装和卸载]]></title><link>https://blog.youkuaiyun.com/lilingfeng1/article/details/124941264</link><guid>https://blog.youkuaiyun.com/lilingfeng1/article/details/124941264</guid><author>lilingfeng1</author><pubDate>Tue, 24 May 2022 10:04:17 +0800</pubDate><description><![CDATA[Linux安装和卸载（准备环境）
1、图形化安装
1.1、准备虚拟机环境（vmware Red Hat Enterprise Linux Server release 7.2 (Maipo) x64）
1.2、安装前环境检查（操作系统位数检查、release信息、系统信息、主机名）

1.3、检查操作系统限制并修改

1.4、检查操作系统内存并修改内存参数

1.5、检查存储空间情况

1.6、防火墙检查并关闭Selinux

1.7、关闭numa和禁用透明大页

1.8、创建安装目录、用户、设置环境变量
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