Home Database Mysql Tutorial SQLServer 数据库镜像+复制切换方案

SQLServer 数据库镜像+复制切换方案

Jun 07, 2016 pm 03:51 PM
sqlserver database

目标: 主机做了 Mirror 和 Replication ,当主机出现问题时, Replication 和 Mirror 实现自动的故障转移( Mirror 和 Replication 都切换到备机,而当主机 重新启动后,自动充当备机的角色)。 环境: 五台虚拟机,配置均为 Windows2008 Enterprise SQLSer

目标:

主机做了Mirror和Replication,当主机出现问题时,Replication和Mirror实现自动的故障转移(Mirror 和Replication都切换到备机,而当主机

重新启动后,自动充当备机的角色)。

环境:

五台虚拟机,配置均为Windows2008 Enterprise + SQLServer2008R2 Enterprise

08R201:Mirror见证机(WITNESS)           IP:192.168.56.101

08R202:主机(Rep+Mirror)                  IP:192.168.56.102

08R203:Rep分发机                               IP:192.168.56.103

08R204:Rep订阅机                               IP:192.168.56.104

08R205:镜像机(Mirror)                       IP:192.168.56.105

步骤:

配置有见证服务器的镜像

1、创建证书和Endpoint

08R202(Master) 上运行下面的脚本:

主机执行:USE master; CREATE MASTER KEY ENCRYPTION BY PASSWORD = '123456abc'; CREATE CERTIFICATE HOST_A_cert WITH SUBJECT = 'HOST_A certificate' , START_DATE = '11/08/2010',EXPIRY_DATE = '10/31/2099'; --主机执行:CREATE ENDPOINT Endpoint_Mirroring STATE = STARTED AS TCP ( LISTENER_PORT=5022 , LISTENER_IP = ALL ) FOR DATABASE_MIRRORING ( AUTHENTICATION = CERTIFICATE HOST_A_cert , ENCRYPTION = REQUIRED ALGORITHM AES , ROLE = ALL ); --主机执行:    BACKUP CERTIFICATE HOST_A_cert TO FILE = 'D:HOST_A_cert.cer';
Copy after login

08R205(Mirror) 上运行下面的脚本:

备机执行:USE master; CREATE MASTER KEY ENCRYPTION BY PASSWORD = '123456abc'; CREATE CERTIFICATE HOST_B_cert WITH SUBJECT = 'HOST_B certificate', START_DATE = '11/08/2010',EXPIRY_DATE = '10/31/2099'; --备机执行:CREATE ENDPOINT Endpoint_Mirroring STATE = STARTED AS TCP ( LISTENER_PORT=5022 , LISTENER_IP = ALL ) FOR DATABASE_MIRRORING ( AUTHENTICATION = CERTIFICATE HOST_B_cert , ENCRYPTION = REQUIRED ALGORITHM AES , ROLE = ALL ); --备机执行:BACKUP CERTIFICATE HOST_B_cert TO FILE = 'D:HOST_B_cert.cer';
Copy after login

08R201(WITNESS)上运行下面的脚本:

 Replicaiton不做具体的搭建过程,只做几点说明:

1.  08R202和08R205都需要搭建到08R203的Distribution;

2.  08R202和08R205上的发布库的所有者必须为“SA”,否则切换会出现如下错误:The process could not execute‘sp_replcmds’ on ‘WIN-08R205′.

3.  08R203分发机上配置文件需要做如下修改(配置故障转移Partner):

配置复制故障转移参数--查看代理配置,在分发服务器运行exec sp_help_agent_profile --Agent_Type含义--1 = Snapshot Agent; 2 = Log Reader Agent; 3 = Distribution Agent; --4 = Merge Agent; 9 = Queue Reader Agent.--对于事务复制,需查看Agent_Type=1,2的Profile_id--对于事务复制,需要配置快照代理(Snapshot Agent)和日志读取代理(Log Reader Agent)exec sp_add_agent_parameter @profile_id = 1, @parameter_name = N'-PublisherFailoverPartner', @parameter_value = N'WIN-08R205'--镜像服务器名称exec sp_add_agent_parameter @profile_id = 2, @parameter_name = N'-PublisherFailoverPartner', @parameter_value = N'WIN-08R205'--镜像服务器名称
Copy after login

修改完成后,记得重启Agent服务,使之生效。

4.  从08R202创建到08R204的同步链。

模拟故障转移并观察结果

1.  暂停08R202的SQLServer服务;

2.  到08R205上观察镜像和同步链是否转移过去了;

3.  如果同步链正常,修改某个表中的数据,看是否能同步到08R204上;

4.  重新启动08R202的SQLServer服务,看其是否成为了镜像机;

5.  如果一起都正常,那恭喜啦,我们的测试成功。

更多相关教程请访问 MySQL视频教程

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

What is the difference between mysql and sqlserver syntax What is the difference between mysql and sqlserver syntax Apr 22, 2024 pm 06:33 PM

The syntax differences between MySQL and SQL Server are mainly reflected in database objects, data types, SQL statements and other aspects. Database object differences include the storage engine and how filegroups are specified, and the creation of indexes and constraints. Data type differences involve differences in numeric types, character types, and date and time types. SQL statement differences are reflected in result set limitations, data insertion, update and delete operations, etc. Other differences include how identity columns, views, and stored procedures are created. Understanding these differences is important to avoid errors when using different database systems.

iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos Jul 18, 2024 am 05:48 AM

Apple's latest releases of iOS18, iPadOS18 and macOS Sequoia systems have added an important feature to the Photos application, designed to help users easily recover photos and videos lost or damaged due to various reasons. The new feature introduces an album called "Recovered" in the Tools section of the Photos app that will automatically appear when a user has pictures or videos on their device that are not part of their photo library. The emergence of the "Recovered" album provides a solution for photos and videos lost due to database corruption, the camera application not saving to the photo library correctly, or a third-party application managing the photo library. Users only need a few simple steps

How does Hibernate implement polymorphic mapping? How does Hibernate implement polymorphic mapping? Apr 17, 2024 pm 12:09 PM

Hibernate polymorphic mapping can map inherited classes to the database and provides the following mapping types: joined-subclass: Create a separate table for the subclass, including all columns of the parent class. table-per-class: Create a separate table for subclasses, containing only subclass-specific columns. union-subclass: similar to joined-subclass, but the parent class table unions all subclass columns.

Detailed tutorial on establishing a database connection using MySQLi in PHP Detailed tutorial on establishing a database connection using MySQLi in PHP Jun 04, 2024 pm 01:42 PM

How to use MySQLi to establish a database connection in PHP: Include MySQLi extension (require_once) Create connection function (functionconnect_to_db) Call connection function ($conn=connect_to_db()) Execute query ($result=$conn->query()) Close connection ( $conn->close())

Where is the navicat database file? Where is the navicat database file? Apr 23, 2024 am 10:57 AM

The location where the Navicat database configuration files are stored varies by operating system: Windows: The user-specific path is %APPDATA%\PremiumSoft\Navicat\macOS: The user-specific path is ~/Library/Application Support/Navicat\Linux: The user-specific path is ~/ .config/navicat\The configuration file name contains the connection type, such as navicat_mysql.ini. These configuration files store database connection information, query history, and SSH settings.

How to handle database connection errors in PHP How to handle database connection errors in PHP Jun 05, 2024 pm 02:16 PM

To handle database connection errors in PHP, you can use the following steps: Use mysqli_connect_errno() to obtain the error code. Use mysqli_connect_error() to get the error message. By capturing and logging these error messages, database connection issues can be easily identified and resolved, ensuring the smooth running of your application.

How to write navicat database connection url How to write navicat database connection url Apr 24, 2024 am 02:33 AM

The format of the Navicat connection URL is: protocol://username:password@host:port/database name? Parameters, which contain the information required for the connection, including protocol, username, password, hostname, port, database name and optional parameter.

How to connect to remote database using Golang? How to connect to remote database using Golang? Jun 01, 2024 pm 08:31 PM

Through the Go standard library database/sql package, you can connect to remote databases such as MySQL, PostgreSQL or SQLite: create a connection string containing database connection information. Use the sql.Open() function to open a database connection. Perform database operations such as SQL queries and insert operations. Use defer to close the database connection to release resources.

See all articles