search
HomeDatabaseMysql Tutorial mysql服务器的HA集群之corosync+drbd+pacemaker实现 上

通过HA实现服务器的高可用性,即通过corosync+drbd+pacemaker实现mysql服务器的高可用集群。案例应用实现主要步骤:一.准备工作:二、DRBD安装配置步骤三、mysq

通过HA实现服务器的高可用性,即通过corosync+drbd+pacemaker实现mysql服务器的高可用集群。

 

案例应用实现主要步骤:

一.准备工作:

二、DRBD安装配置步骤

三、mysql安装与配置

四、corosync+pacemaker的安装和配置 

五、集群管理

 

 

实现详细步骤:

一.准备工作:

1.1 修改node1.magedu.com主机名,IP地址和系统时间



1.2 修改node2.magedu.com主机名,IP地址和系统时间



1.3 node1node2上配置hosts文件和ssh密钥信息
有利于以后在一个节点对另一节点直接操作。
1.3.1 
node1上修改/etc/hosts文件


  • 1.3.1 
    node1上修改/etc/hosts文件


  • 1.3.3 
    node1上配置ssh密钥信息

  • [root@node1 ~]# ssh-keygen -t rsa #一直输入空格 
  • [root@node1 ~]# ssh-copy-id -i .ssh/id_rsa.pub root@node2.magedu.com 

  • 1.3.4 
    node2上配置ssh密钥信息

    1.4 下载相关软件包:(这里我将下载的软件包放在/root/ha/下面了,网站空间,共18个)


    1.5 
    配置本地yum数据库

     


    1.6 
    node1上新增磁盘

    1.7 node2上新增磁盘

    二、DRBD安装配置步骤

    node1node2做以下操作:

    我下载的软件包是:(我放在/root/ha/下了)

    drbd83-8.3.8-1.el5.centos.i386.rpm 

    kmod-drbd83-8.3.8-1.el5.centos.i686.rpm

    2.1、安装DRBD 套件


    2.2、加载DRBD 模块


    2.3
    、修改配置文件 

    drbd.conf配置文件DRBD运行时,会读取一个配置文件/etc/drbd.conf.这个文件里描述了DRBD设备与硬盘分区的映射关系
    2.3.1 
    node1上以下配置

    2.3.2 复制配置到node2上:


    2.4
     检测配置文件创建nfs 的资源 

    Statement
    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
    Explain the InnoDB Buffer Pool and its importance for performance.Explain the InnoDB Buffer Pool and its importance for performance.Apr 19, 2025 am 12:24 AM

    InnoDBBufferPool reduces disk I/O by caching data and indexing pages, improving database performance. Its working principle includes: 1. Data reading: Read data from BufferPool; 2. Data writing: After modifying the data, write to BufferPool and refresh it to disk regularly; 3. Cache management: Use the LRU algorithm to manage cache pages; 4. Reading mechanism: Load adjacent data pages in advance. By sizing the BufferPool and using multiple instances, database performance can be optimized.

    MySQL vs. Other Programming Languages: A ComparisonMySQL vs. Other Programming Languages: A ComparisonApr 19, 2025 am 12:22 AM

    Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages ​​such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages ​​have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

    Learning MySQL: A Step-by-Step Guide for New UsersLearning MySQL: A Step-by-Step Guide for New UsersApr 19, 2025 am 12:19 AM

    MySQL is worth learning because it is a powerful open source database management system suitable for data storage, management and analysis. 1) MySQL is a relational database that uses SQL to operate data and is suitable for structured data management. 2) The SQL language is the key to interacting with MySQL and supports CRUD operations. 3) The working principle of MySQL includes client/server architecture, storage engine and query optimizer. 4) Basic usage includes creating databases and tables, and advanced usage involves joining tables using JOIN. 5) Common errors include syntax errors and permission issues, and debugging skills include checking syntax and using EXPLAIN commands. 6) Performance optimization involves the use of indexes, optimization of SQL statements and regular maintenance of databases.

    MySQL: Essential Skills for Beginners to MasterMySQL: Essential Skills for Beginners to MasterApr 18, 2025 am 12:24 AM

    MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

    MySQL: Structured Data and Relational DatabasesMySQL: Structured Data and Relational DatabasesApr 18, 2025 am 12:22 AM

    MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

    MySQL: Key Features and Capabilities ExplainedMySQL: Key Features and Capabilities ExplainedApr 18, 2025 am 12:17 AM

    MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

    The Purpose of SQL: Interacting with MySQL DatabasesThe Purpose of SQL: Interacting with MySQL DatabasesApr 18, 2025 am 12:12 AM

    SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

    MySQL for Beginners: Getting Started with Database ManagementMySQL for Beginners: Getting Started with Database ManagementApr 18, 2025 am 12:10 AM

    The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA

    See all articles

    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

    MantisBT

    MantisBT

    Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

    Dreamweaver Mac version

    Dreamweaver Mac version

    Visual web development tools

    SublimeText3 Mac version

    SublimeText3 Mac version

    God-level code editing software (SublimeText3)

    PhpStorm Mac version

    PhpStorm Mac version

    The latest (2018.2.1) professional PHP integrated development tool

    WebStorm Mac version

    WebStorm Mac version

    Useful JavaScript development tools