Linux上安装oracle,因其过程之繁琐,报错率之高,成为了许多工程师的梦魇。前段时间因工作需要,分别在HP的PC服务器和小型机上装
Linux上安装Oracle,因其过程之繁琐,报错率之高,成为了许多工程师的梦魇。前段时间因工作需要,分别在HP的PC服务器和小型机上装了几次oracle,其间的过程是生不如死啊,简直都快弄出人命了~如果自己没有一套完整的安装流程,光靠临时去百度的话,我想任何人都会有这样的问题:不断报错,不断卡壳,没完没了……最后还很有可能导致不得不重装系统。这些使得我不得不对自己的教训进行了总结,现总结出一份史上最详细的安装教程,供自己备忘,同时也分享给大家。
本教程适用环境为32位的RHEL5系统和oracle11g R2。
1、在安装oracle之前,用命令检查必需的RPM软件包有没有安装
命令如下:
rpm -q binutils compat-libstdc++-33 elfutils-libelf elfutils-libelf-devel gcc gcc-c++ glibc glibc-common glibc-devel glibc-headers kernel-headers ksh libaio libaio-devel libgcc libgomp libstdc++ libstdc++-devel make numactl-devel sysstat unixODBC unixODBC-devel
如果RPM包安装完全的话会如图所示
如果未安装完全会显示XXX is not installed,这个时候可以通过挂在RHEL5.4的光盘或镜像,在Server文件夹里寻找相应的RPM包安装。
2、建立oracle系统用户和安装目录
创建一个主组oracle和一个副组dba
groupadd oinstall
groupadd dba
创建oracle安装文件夹
mkdir -p /oracle
添加一个oracle用户, 根目录是 /oracle,, 主的组是oinstall 副的组是dba
useradd -g oinstall -G dba -d /oracle oracle
拷贝包含环境变量的文件到安装目录下,这个之后会用到
cp /etc/skel/.bash_profile /oracle
cp /etc/skel/.bashrc /oracle
cp /etc/skel/.bash_logout /oracle
为oracle用户设置密码 123456
passwd oracle
设置安装目录用户权限
chown -R oracle:oinstall /oracle
检查 nobody 是否存在
id nobody
缺省存在的,会显示nobody的uid、gid和groups,默认都是99。如果不存在可以输入以下命令
/usr/sbin/useradd -g nobody
3、修改内核参数
vi /etc/sysctl.conf
在sysctl.conf这个文件中加入以下内容,我加在文件的末尾
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
4、设置oracle用户的shell limit
vi /etc/security/limits.conf
在limits.conf中加入以下内容,同样放在末尾,如图所示
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
增加下面的内容到文件 /etc/pam.d/login 中,使shell limit生效
vi /etc/pam.d/login
session required pam_limits.so

The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

Article discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]

Article discusses strategies for handling large datasets in MySQL, including partitioning, sharding, indexing, and query optimization.

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

The article discusses dropping tables in MySQL using the DROP TABLE statement, emphasizing precautions and risks. It highlights that the action is irreversible without backups, detailing recovery methods and potential production environment hazards.

Article discusses using foreign keys to represent relationships in databases, focusing on best practices, data integrity, and common pitfalls to avoid.

The article discusses creating indexes on JSON columns in various databases like PostgreSQL, MySQL, and MongoDB to enhance query performance. It explains the syntax and benefits of indexing specific JSON paths, and lists supported database systems.

Article discusses securing MySQL against SQL injection and brute-force attacks using prepared statements, input validation, and strong password policies.(159 characters)


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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SublimeText3 Linux new version
SublimeText3 Linux latest version

WebStorm Mac version
Useful JavaScript development tools

Dreamweaver CS6
Visual web development tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

SublimeText3 Chinese version
Chinese version, very easy to use
