linux下安装第二个mysql实例过程
tar zxvf mysql-5.5.3-m3.tar.gz cd mysql-5.5.3-m3/ ./configure --prefix=/usr/local/mysql2/ --with-tcp-port=3307 --with-unix-socket-path=/tmp/mysql2.sock --enable-assembler --with-extra-charsets=complex --enable-thread-safe-client --with-big
tar zxvf mysql-5.5.3-m3.tar.gz
cd mysql-5.5.3-m3/
./configure --prefix=/usr/local/mysql2/ --with-tcp-port=3307 --with-unix-socket-path=/tmp/mysql2.sock --enable-assembler --with-extra-charsets=complex --enable-thread-safe-client --with-big-tables --with-readline --with-ssl --with-embedded-server --enable-local-infile --with-plugins=partition,innobase,myisammrg
make && make install
cp /usr/local/mysql2/share/mysql/my-medium.cnf /etc/my2.cnf
cp /usr/local/mysql2/share/mysql/mysql.server /etc/init.d/mysql2
修改服务文件
vi /etc/rc.d/init.d/mysql2
将引用的配置文件名称由my.cnf改为当前要使用的配置文件my2.cnf,将my.cnf改成my2.cnf
# Try to find basedir in /etc/my.cnf
conf=/etc/my.cnf
print_defaults=
if test -r $conf
then
在$bindir/mysqld_safe中添加--defaults-file=/etc/my2.cnf
修改成下面
# may be overwritten at next upgrade.
$bindir/mysqld_safe --defaults-file=/etc/my2.cnf --datadir="$datadir" --pid-file="$mysqld_pid_file_path" $other_args >/dev/null 2>&1 &
保存。
初始化数据库
/usr/local/mysql2/bin/mysql_install_db --defaults-file=/etc/my2.cnf --basedir=/usr/local/mysql2/ --datadir=/usr/local/mysql2/var/ --user=mysql
chown -R mysql /usr/local/mysql2/var
chgrp -R mysql /usr/local/mysql2/.
chmod 755 /etc/init.d/mysql2
chkconfig --level 345 mysql2 on
service mysql2 start
至此安装完毕,可以启动一下,看是否有该进程
netstat -tlnap | grep mysql
/usr/local/mysql2/bin/mysql -uroot -p --socket=/tmp/mysql2.sock
change master to master_host='0.0.0.0', master_user='replication',master_password='00000', master_log_file='mysql-bin.000005', master_log_pos=107,MASTER_PORT=3306;
要指定端口,要不用的是本实例默认端口。
Tags - mysql , mysql安装
原文地址:linux下安装第二个mysql实例过程, 感谢原作者分享。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

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

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.

The main difference between MySQL and MariaDB is performance, functionality and license: 1. MySQL is developed by Oracle, and MariaDB is its fork. 2. MariaDB may perform better in high load environments. 3.MariaDB provides more storage engines and functions. 4.MySQL adopts a dual license, and MariaDB is completely open source. The existing infrastructure, performance requirements, functional requirements and license costs should be taken into account when choosing.

SQL is a standard language for managing relational databases, while MySQL is a database management system that uses SQL. SQL defines ways to interact with a database, including CRUD operations, while MySQL implements the SQL standard and provides additional features such as stored procedures and triggers.

MySQL and phpMyAdmin can be effectively managed through the following steps: 1. Create and delete database: Just click in phpMyAdmin to complete. 2. Manage tables: You can create tables, modify structures, and add indexes. 3. Data operation: Supports inserting, updating, deleting data and executing SQL queries. 4. Import and export data: Supports SQL, CSV, XML and other formats. 5. Optimization and monitoring: Use the OPTIMIZETABLE command to optimize tables and use query analyzers and monitoring tools to solve performance problems.

DMA in C refers to DirectMemoryAccess, a direct memory access technology, allowing hardware devices to directly transmit data to memory without CPU intervention. 1) DMA operation is highly dependent on hardware devices and drivers, and the implementation method varies from system to system. 2) Direct access to memory may bring security risks, and the correctness and security of the code must be ensured. 3) DMA can improve performance, but improper use may lead to degradation of system performance. Through practice and learning, we can master the skills of using DMA and maximize its effectiveness in scenarios such as high-speed data transmission and real-time signal processing.

Handling high DPI display in C can be achieved through the following steps: 1) Understand DPI and scaling, use the operating system API to obtain DPI information and adjust the graphics output; 2) Handle cross-platform compatibility, use cross-platform graphics libraries such as SDL or Qt; 3) Perform performance optimization, improve performance through cache, hardware acceleration, and dynamic adjustment of the details level; 4) Solve common problems, such as blurred text and interface elements are too small, and solve by correctly applying DPI scaling.

macOSandLinuxbothofferuniquestrengths:macOSprovidesauser-friendlyexperiencewithexcellenthardwareintegration,whileLinuxexcelsinflexibilityandcommunitysupport.macOS,developedbyApple,isknownforitssleekinterfaceandecosystemintegration,whereasLinux,beingo

MySQL is suitable for rapid development and small and medium-sized applications, while Oracle is suitable for large enterprises and high availability needs. 1) MySQL is open source and easy to use, suitable for web applications and small and medium-sized enterprises. 2) Oracle is powerful and suitable for large enterprises and government agencies. 3) MySQL supports a variety of storage engines, and Oracle provides rich enterprise-level functions.
