search
HomeDatabaseMysql TutorialData backup and failure recovery: Discussion on the importance of MySQL master-slave replication in cluster mode

Data backup and failure recovery: Discussion on the importance of MySQL master-slave replication in cluster mode

Data backup and failure recovery: Discussion on the importance of MySQL master-slave replication in cluster mode

Introduction: In recent years, with the continuous increase in data scale and complexity With growth, database backup and failure recovery become even more important. In distributed systems, MySQL master-slave replication is widely used in cluster mode to provide high availability and fault tolerance. This article will explore the importance of MySQL master-slave replication in cluster mode and give some code examples.

1. The basic principles and advantages of MySQL master-slave replication

MySQL master-slave replication is a method of recording the modification operations of the master database into the binary log (binlog) and transmitting them through the network. These logs are transferred to the database to achieve data replication. The basic principle of master-slave replication is as follows:

  1. The master database records modification operations into the binlog;
  2. The slave database connects to the master database and obtains the file name and location information of the binlog;
  3. According to the file name and location information of binlog, obtain the uncopied binlog from the database and apply it to the slave database.

MySQL master-slave replication has the following advantages in cluster mode:

  1. Provides high availability: if the master database fails, the slave database can take over the role of the master database, ensuring Continuous availability of the system;
  2. Achieving fault tolerance: If an error occurs in the primary database or the data is damaged, data recovery and repair can be performed by reconfiguring the secondary database;
  3. Share the read pressure: Primary database processing For write operations, the slave database is responsible for read operations, which greatly improves the read performance of the system;
  4. Distributed query: Through master-slave replication, query operations can be performed on the slave database, reducing the burden on the master database.

2. MySQL master-slave replication steps and sample code

MySQL master-slave replication mainly includes the following steps:

  1. Configuring the master server
    Make the following configuration on the master server:
# 在my.cnf文件中开启二进制日志记录
log-bin=mysql-bin

# 配置唯一标识符
server-id=1

# 配置需要复制的数据库
binlog-do-db=database1
  1. Configure the slave server
    Make the following configuration on the slave server:
# 配置唯一标识符
server-id=2

# 配置需要连接的主服务器
master-host=master_server_ip

# 配置复制的用户名和密码
master-user=replication_user
master-password=password

# 配置需要复制的数据库
replicate-do-db=database1
  1. Start the master server and slave server
# 启动主服务器
$ /etc/init.d/mysql start

# 启动从服务器
$ /etc/init.d/mysql start
  1. Test the master-slave replication

Create a new record on the master server:

mysql> USE database1;
mysql> INSERT INTO table1 (column1, column2) VALUES ('value1', 'value2');

On the slave server Check whether the synchronization is successful:

mysql> USE database1;
mysql> SELECT * FROM table1;

The above are the basic configuration steps and sample code for MySQL master-slave replication. By configuring the master server and slave server, enabling binlog logging, and setting the database to be replicated, database backup and fault recovery can be achieved.

3. Summary

MySQL master-slave replication has important significance and advantages in cluster mode. It can provide high availability and fault tolerance, share read pressure, and support distributed queries. By understanding the basic principles and configuration steps of MySQL master-slave replication, we can better cope with the challenges of database backup and failure recovery. In practice, we can also ensure the stability and reliability of master-slave replication by using monitoring tools and regularly checking logs. I hope this article will be helpful to readers in the use and maintenance of MySQL master-slave replication.

The above is the detailed content of Data backup and failure recovery: Discussion on the importance of MySQL master-slave replication in cluster mode. For more information, please follow other related articles on the PHP Chinese website!

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
What are the differences in syntax between MySQL and other SQL dialects?What are the differences in syntax between MySQL and other SQL dialects?Apr 27, 2025 am 12:26 AM

MySQLdiffersfromotherSQLdialectsinsyntaxforLIMIT,auto-increment,stringcomparison,subqueries,andperformanceanalysis.1)MySQLusesLIMIT,whileSQLServerusesTOPandOracleusesROWNUM.2)MySQL'sAUTO_INCREMENTcontrastswithPostgreSQL'sSERIALandOracle'ssequenceandt

What is MySQL partitioning?What is MySQL partitioning?Apr 27, 2025 am 12:23 AM

MySQL partitioning improves performance and simplifies maintenance. 1) Divide large tables into small pieces by specific criteria (such as date ranges), 2) physically divide data into independent files, 3) MySQL can focus on related partitions when querying, 4) Query optimizer can skip unrelated partitions, 5) Choosing the right partition strategy and maintaining it regularly is key.

How do you grant and revoke privileges in MySQL?How do you grant and revoke privileges in MySQL?Apr 27, 2025 am 12:21 AM

How to grant and revoke permissions in MySQL? 1. Use the GRANT statement to grant permissions, such as GRANTALLPRIVILEGESONdatabase_name.TO'username'@'host'; 2. Use the REVOKE statement to revoke permissions, such as REVOKEALLPRIVILEGESONdatabase_name.FROM'username'@'host' to ensure timely communication of permission changes.

Explain the differences between InnoDB and MyISAM storage engines.Explain the differences between InnoDB and MyISAM storage engines.Apr 27, 2025 am 12:20 AM

InnoDB is suitable for applications that require transaction support and high concurrency, while MyISAM is suitable for applications that require more reads and less writes. 1.InnoDB supports transaction and bank-level locks, suitable for e-commerce and banking systems. 2.MyISAM provides fast read and indexing, suitable for blogging and content management systems.

What are the different types of JOINs in MySQL?What are the different types of JOINs in MySQL?Apr 27, 2025 am 12:13 AM

There are four main JOIN types in MySQL: INNERJOIN, LEFTJOIN, RIGHTJOIN and FULLOUTERJOIN. 1.INNERJOIN returns all rows in the two tables that meet the JOIN conditions. 2.LEFTJOIN returns all rows in the left table, even if there are no matching rows in the right table. 3. RIGHTJOIN is contrary to LEFTJOIN and returns all rows in the right table. 4.FULLOUTERJOIN returns all rows in the two tables that meet or do not meet JOIN conditions.

What are the different storage engines available in MySQL?What are the different storage engines available in MySQL?Apr 26, 2025 am 12:27 AM

MySQLoffersvariousstorageengines,eachsuitedfordifferentusecases:1)InnoDBisidealforapplicationsneedingACIDcomplianceandhighconcurrency,supportingtransactionsandforeignkeys.2)MyISAMisbestforread-heavyworkloads,lackingtransactionsupport.3)Memoryengineis

What are some common security vulnerabilities in MySQL?What are some common security vulnerabilities in MySQL?Apr 26, 2025 am 12:27 AM

Common security vulnerabilities in MySQL include SQL injection, weak passwords, improper permission configuration, and unupdated software. 1. SQL injection can be prevented by using preprocessing statements. 2. Weak passwords can be avoided by forcibly using strong password strategies. 3. Improper permission configuration can be resolved through regular review and adjustment of user permissions. 4. Unupdated software can be patched by regularly checking and updating the MySQL version.

How can you identify slow queries in MySQL?How can you identify slow queries in MySQL?Apr 26, 2025 am 12:15 AM

Identifying slow queries in MySQL can be achieved by enabling slow query logs and setting thresholds. 1. Enable slow query logs and set thresholds. 2. View and analyze slow query log files, and use tools such as mysqldumpslow or pt-query-digest for in-depth analysis. 3. Optimizing slow queries can be achieved through index optimization, query rewriting and avoiding the use of SELECT*.

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

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development 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.

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.