Home Database Mysql Tutorial Mysql复制及代理

Mysql复制及代理

Jun 07, 2016 pm 05:38 PM
mysql

#####################################Mysql复制的作用和原理mysql-5.5实现主从复制mysql-5.6主从复制和Mysql_Proxy的实现mysql-5.6基于amoeba实现读写分离####

#####################################

Mysql复制的作用和原理

mysql-5.5实现主从复制

mysql-5.6主从复制和Mysql_Proxy的实现

mysql-5.6基于amoeba实现读写分离

#####################################

Mysql复制的作用和原理

复制的作用

复制原理

184550539.png


复制流程如下:

relaylog(中继日志)



mysql-5.5实现主从复制

结构图如下:

190908174.png

安装mysql

mkdir -pv /mydata/data useradd -r mysql chown -R mysql.mysql /mydata/data tar xf mysql-5.5.28-linux2.6-i686.tar.gz -C /usr/local cd /usr/local/ ln -sv mysql-5.5.28-linux2.6-i686 mysql cd mysql chown -R root.mysql ./* scripts/mysql_install_db --user=mysql --datadir=/mydata/data/ cp support-files/my-large.cnf /etc/my.cnf cp support-files/mysql.server /etc/rc.d/init.d/mysqld chkconfig --add mysqld vim /etc/profile.d/mysql.sh export PATH=$PATH:/usr/local/mysql/bin . /etc/profile.d/mysql.sh

Master配置

#####修改配置文件 vim /etc/my.cnf datadir = /mydata/data log-bin=master-bin log-bin-index=master-bin.index innodb_file_per_table = 1 binlog_format=mixed server-id = 1 sync_binlog = 1 innodb_flush_logs_at_trx_commit = 1 #####开启Slave权限用户 mysql> GRANT REPLICATION SLAVE ON *.* TO 'repluser'@'192.168.1.%' IDENTIFIED BY 'replpass'; Query OK, 0 rows affected (0.00 sec) mysql> FLUSH PRIVILEGES; Query OK, 0 rows affected (0.00 sec)

Slave配置

#####修改配置文件vim /etc/my.cnf datadir = /mydata/data relay-log = relay-log relay-log-index = relay-log.index read-only = ON server-id = 11 skip_slave_start = 1 read_only = 1 #####查看主日志文件和事件位置 mysql> show master status; +-------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +-------------------+----------+--------------+------------------+ | master-bin.000001 | 340 | | | +-------------------+----------+--------------+------------------+ #####开启slave复制功能 mysql> CHANGE MASTER TO MASTER_HOST='192.168.1.131',MASTER_USER='repluser', MASTER_PASSWORD='replpass',MASTER_LOG_FILE='master-bin.000001',MASTER_LOG_POS=340; #####查看slave状态,可得出master二进制日志和slave中继日志的事件和位置对应未必同意所以在slave备份的时候应该记录主服务器的二进制日志,只有二进制日志才可以完成即使点还原 Slave_IO_Running: No Slave_SQL_Running: No 均为yes代表slave复制正常 #####查看复制状态 mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Master_Host: 192.168.1.131 Master_User: repluser Master_Port: 3306 Connect_Retry: 60 Master_Log_File: master-bin.000001 Read_Master_Log_Pos: 340 Relay_Log_File: relay-log.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: master-bin.000001 Slave_IO_Running: No Slave_SQL_Running: No Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 340 #重放到的位置 Relay_Log_Space: 107 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: NULL Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 0 #####开启复制进程 mysql> START SLAVE;

测试

#####Master mysql> create database soulboy; Query OK, 1 row affected (0.00 sec) #####Slave mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | soulboy | | test | +--------------------+ 5 rows in set (0.00 sec)


mysql-5.6主从复制和Mysql_Proxy的实现

复制功能的改进

  • 支持多线程复制,事实上是针对每个database开启相应的独立线程。即每个库有一个单独的(sql thread)如果线上业务中,只有一个database或者绝大多数压力集中在个别database的话,多线程并发复制特性就没有意义了。

  • 支持启用GTID,对运维人员来说应该是一件令人高兴的事情,在配置主从复制,传统的方式里,你需要找到binlog和POS点,然后change master to指向,而不是很有经验的运维,往往会将其找错,造成主从同步复制报错,在mysql5.6里,无须再知道binlog和POS点,需要知道master的IP、端口,账号密码即可,因为同步复制是自动的,mysql通过内部机制GTID自动找点同步。

  • 结构图如下:

    193003193.png

    Mysql-5.6主从复制功能的实现步骤

    Master配置(安装步骤省略)

    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

    AI Hentai Generator

    AI Hentai Generator

    Generate AI Hentai for free.

    Hot Article

    R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
    2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
    Repo: How To Revive Teammates
    4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
    Hello Kitty Island Adventure: How To Get Giant Seeds
    3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

    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)

    PHP's big data structure processing skills PHP's big data structure processing skills May 08, 2024 am 10:24 AM

    Big data structure processing skills: Chunking: Break down the data set and process it in chunks to reduce memory consumption. Generator: Generate data items one by one without loading the entire data set, suitable for unlimited data sets. Streaming: Read files or query results line by line, suitable for large files or remote data. External storage: For very large data sets, store the data in a database or NoSQL.

    How to optimize MySQL query performance in PHP? How to optimize MySQL query performance in PHP? Jun 03, 2024 pm 08:11 PM

    MySQL query performance can be optimized by building indexes that reduce lookup time from linear complexity to logarithmic complexity. Use PreparedStatements to prevent SQL injection and improve query performance. Limit query results and reduce the amount of data processed by the server. Optimize join queries, including using appropriate join types, creating indexes, and considering using subqueries. Analyze queries to identify bottlenecks; use caching to reduce database load; optimize PHP code to minimize overhead.

    How to use MySQL backup and restore in PHP? How to use MySQL backup and restore in PHP? Jun 03, 2024 pm 12:19 PM

    Backing up and restoring a MySQL database in PHP can be achieved by following these steps: Back up the database: Use the mysqldump command to dump the database into a SQL file. Restore database: Use the mysql command to restore the database from SQL files.

    How to insert data into a MySQL table using PHP? How to insert data into a MySQL table using PHP? Jun 02, 2024 pm 02:26 PM

    How to insert data into MySQL table? Connect to the database: Use mysqli to establish a connection to the database. Prepare the SQL query: Write an INSERT statement to specify the columns and values ​​to be inserted. Execute query: Use the query() method to execute the insertion query. If successful, a confirmation message will be output.

    How to fix mysql_native_password not loaded errors on MySQL 8.4 How to fix mysql_native_password not loaded errors on MySQL 8.4 Dec 09, 2024 am 11:42 AM

    One of the major changes introduced in MySQL 8.4 (the latest LTS release as of 2024) is that the "MySQL Native Password" plugin is no longer enabled by default. Further, MySQL 9.0 removes this plugin completely. This change affects PHP and other app

    How to use MySQL stored procedures in PHP? How to use MySQL stored procedures in PHP? Jun 02, 2024 pm 02:13 PM

    To use MySQL stored procedures in PHP: Use PDO or the MySQLi extension to connect to a MySQL database. Prepare the statement to call the stored procedure. Execute the stored procedure. Process the result set (if the stored procedure returns results). Close the database connection.

    How to create a MySQL table using PHP? How to create a MySQL table using PHP? Jun 04, 2024 pm 01:57 PM

    Creating a MySQL table using PHP requires the following steps: Connect to the database. Create the database if it does not exist. Select a database. Create table. Execute the query. Close the connection.

    The difference between oracle database and mysql The difference between oracle database and mysql May 10, 2024 am 01:54 AM

    Oracle database and MySQL are both databases based on the relational model, but Oracle is superior in terms of compatibility, scalability, data types and security; while MySQL focuses on speed and flexibility and is more suitable for small to medium-sized data sets. . ① Oracle provides a wide range of data types, ② provides advanced security features, ③ is suitable for enterprise-level applications; ① MySQL supports NoSQL data types, ② has fewer security measures, and ③ is suitable for small to medium-sized applications.

    See all articles