在CentOS系统上高效配置Oracle数据库涉及多个步骤,包括安装、配置、优化等。以下是一个详细的指南,帮助你在CentOS系统上高效地配置Oracle数据库:
sudo hostnamectl set-hostname db
sudo yum install libnsl libnsl2-devel libaio-devel libcap-devel xorg-x11-utils xauth gcc make libstdc++-devel sysstat smartmontools glibc-compat-2.17
sudo setenforce 0
sudo vi /etc/selinux/config # 将 SELINUX=enforcing 改为 SELINUX=disabled
sudo groupadd oinstall
sudo groupadd dba
sudo useradd -g oinstall -g dba oracle
sudo passwd oracle
sudo vi /etc/sysctl.conf # 添加以下内容
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 1073741824
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 = 1048576
sudo sysctl -p
sudo vi /etc/security/limits.conf # 添加以下内容
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
oracle soft stack 10240
sudo vi /etc/pam.d/login # 添加以下内容
session required pam_limits.so
sudo vi /etc/profile # 添加以下内容
if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
source /etc/profile
下载安装包:从Oracle官方网站下载适用于CentOS的Oracle 19c安装包。
解压安装包:
unzip oracle-database-preinstall-19c-1.0-1.el7.x86_64.rpm
sudo mkdir -p /u01/app/oracle/product/19.0.0/dbhome_1
sudo chown -R oracle:oinstall /u01
cd /u01/app/oracle/product/19.0.0/dbhome_1
./runInstaller -silent -responseFile /path/to/response_custom.rsp
sudo vi ~/.bashrc # 添加以下内容
export ORACLE_HOME=/u01/app/oracle/product/19.0.0/dbhome_1
export ORACLE_SID=ORCL
export PATH=$PATH:$ORACLE_HOME/bin
source ~/.bashrc
sudo su - oracle
sqlplus / as sysdba
CREATE DATABASE orcl
sqlplus /nolog
sudo vi /etc/sysctl.conf # 添加或修改以下参数
fs.file-max = 6815744
kernel.shmmax = 4294967295
kernel.shmall = 4294967296
sudo sysctl -p
sudo vi /etc/security/limits.conf # 添加以下内容
oracle soft nofile 65536
oracle hard nofile 65536
ALTER SYSTEM SET PGA_AGGREGATE_TARGET=1000M SCOPE=SPFILE;
ALTER SYSTEM SET PGA_MAX_SIZE=1000M SCOPE=SPFILE;
ALTER SYSTEM SET PGA_AGGREGATE_LIMIT=1000M SCOPE=SPFILE;
ALTER SYSTEM SET SGA_TARGET=5000M SCOPE=SPFILE;
ALTER SYSTEM SET db_block_size=8192;
ALTER SYSTEM SET db_cache_size=5000;
ALTER SYSTEM SET sessions=3000;
ALTER SYSTEM SET processes=500;
通过以上步骤,你可以在CentOS系统上高效地配置和优化Oracle数据库。请根据你的具体需求和系统环境进行相应的调整和优化。