Table of Contents
在一台机器上,怎样开启两个mysql服务
Home Database Mysql Tutorial 在一台机器上,怎样开启两个mysql服务

在一台机器上,怎样开启两个mysql服务

Jun 07, 2016 pm 03:25 PM
mysql turn on how Serve machine

原贴:http://www.wangwa.com/info/2007-04/68630.htm 在一台机器上,怎样开启两个mysql服务 [日期: 2007-04-12 ] 来源: 作者: [字体:大 中 小] 在一台机器上,怎样开启两个mysql服务 悬赏分:20 - 解决时间:2006-9-24 18:36 在一台机器上运行两个mysql

原贴:http://www.wangwa.com/info/2007-04/68630.htm

在一台机器上,怎样开启两个mysql服务

[日期:2007-04-12] 来源:  作者: [字体:大 中 小]

在一台机器上,怎样开启两个mysql服务


在一台机器上,怎样开启两个mysql服务 悬赏分:20 - 解决时间:2006-9-24 18:36

在一台机器上运行两个mysql服务,对应两个数据库,应该怎样操作?

在一台机器上,怎样开启两个mysql服务最佳答案

7月26日 10:36 有些情况下你可能想要在同一台机器上运行多个服务器。例如,你可能想要测试一个新的MySQL版本而让你现有生产系统的设置不受到干扰,或你可能是想要为不同的客户提供独立的MySQL安装一个因特网服务供应商。

如果你想要运行多个服务器,最容易的方法是用不同的TCP/IP端口和套接字文件重新编译服务器,因此他们不是侦听同一个TCP/IP端口或套接字。

假设一个现存服务器配置为缺省端口号和套接字文件,那么用一个这样的configure命令行设置新的服务器:

shell> ./configure --with-tcp-port=port_number /
--with-unix-socket=file_name /
--prefix=/usr/local/mysql-3.22.9

这里port_number和file_name应该不同于缺省端口号和套接字文件路径名,而且--prefix值应该指定一个不同于现存的MySQL安装所在的安装目录。

你可以用这个命令检查由任何当前执行的MySQL所使用的套接字和端口:

shell> mysqladmin -h hostname --port=port_number variables

如果你有一个MySQL服务器正运行在你使用了的端口上,你将得到MySQL的一些最重要的可配置变量的一张表,包括套接字名等。

你也应该编辑你机器的初始化脚本(可能是“mysql.server”)来启动并杀死多个mysqld服务器。

你不必重新编译一个新MySQL服务器,只要以一个不同的端口和套接字启动即可。你可以通过指定在运行时safe_mysqld使用的选项来改变端口和套接字:

shell> /path/to/safe_mysqld --socket=file_name --port=port_number

如果你在与开启日志的另一个服务器相同的一个数据库目录下运行新服务器,你也应该用safe_mysqld的--log和--log-update选项来指定日志文件的名字,否则,两个服务器可能正在试图写入同一个日志文件。

警告:通常你决不应该有在同一个数据库中更新数据的2个服务器!如果你的OS不支持无故障(fault-free)的系统锁定,这可能导致令人惊讶的事情发生!

如果你想要为第二个服务器使用另一个数据库目录,你可以使用safe_mysqld的--datadir=path选项。

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
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
Two Point Museum: All Exhibits And Where To Find Them
1 months 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)

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 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 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 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.

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 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

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.

How to delete data from MySQL table using PHP? How to delete data from MySQL table using PHP? Jun 05, 2024 pm 12:40 PM

PHP provides the following methods to delete data in MySQL tables: DELETE statement: used to delete rows matching conditions from the table. TRUNCATETABLE statement: used to clear all data in the table, including auto-incremented IDs. Practical case: You can delete users from the database using HTML forms and PHP code. The form submits the user ID, and the PHP code uses the DELETE statement to delete the record matching the ID from the users table.

See all articles