postgreSQL安装


官网地址:
https://www.postgresql.org/download/linux/redhat/

16.2 下载地址
https://www.postgresql.org/ftp/source/v16.2/

安装顺序

-- 安装依赖
yum install -y gcc*
yum install -y readline-devel zlib-devel
yum install -y libicu-deve

-- 创建用户
groupadd postgres
useradd -g postgres postgres
passwd postgres  

-- 创建软件目录和数据目录
mkdir -p /u01/pg16/data
chown postgres /u01/pg16/data

-- 解压后进行编译安装
tar -zxvf postgresql-16.2.tar.gz
cd postgresql-16.2
./configure --prefix=/u01/pg16
make 
make install

-- 修改postgres用户环境变量
su - postgres
vim ~/.bash_profile
PATH=$PATH:$HOME/.local/bin:$HOME/bin:/u01/pg16/bin
export PATH
PGDATA=/u01/pg16/data
export PGDATA
export LANG=en_US.UTF-8

source ~/.bash_profile

-- 初始化数据库
/u01/pg16/bin/initdb -D /u01/pg16/data


-- 启动数据库
/u01/pg16/bin/pg_ctl -D /u01/pg16/data -l logfile start

数据库内部设置

-- 修改管理员密码
psql
alter user postgres password 'postgres';


-- 修改pg_hba.conf文件,针对IPV4地址的客户端机器,允许其通过任意IP地址连接
vim /u01/pg16/data/pg_hba.conf
#IPv4 local connections: 添加一行
host all all 0.0.0.0/0 trust


-- 修改数据库配置文件(参数根据实际情况进行修改)
vim /u01/pg16/data/postgresql.conf
# 上一步编写了pg_hba.conf文件,需要在配置文件中添加listen_addresses = '*'才可生效
listen_addresses = '*'
max_connections = 500
shared_buffers = 2GB
dynamic_shared_memory_type = posix 
max_wal_size = 2GB
min_wal_size = 256MB
logging_collector = on
log_directory = 'pg_log'
log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'
log_rotation_age = 1d
log_rotation_size = 100MB
log_timezone = 'Asia/Shanghai'
datestyle = 'iso, mdy'
timezone = 'Asia/Shanghai'
lc_messages = 'en_US.UTF-8'
lc_monetary = 'en_US.UTF-8' 
lc_numeric = 'en_US.UTF-8' 
lc_time = 'en_US.UTF-8'
default_text_search_config = 'pg_catalog.english'


-- 重启数据库生效
pg_ctl restart -m fast

配置开机自启systemctl

vim /usr/lib/systemd/system/postgresql.service

[Unit]
Description=postgreSQL Server

[Service]
User=postgres
Group=postgres
Type=forking
TimeoutSec=0
PermissionsStartOnly=true
ExecStart=/u01/pg16/bin/pg_ctl -D /u01/pg16/data start
ExecStop=/u01/pg16/bin/pg_ctl stop -D /u01/pg16/data -s -m fast
LimitNOFILE = 65535
Restart=on-failure
RestartSec=3
RestartPreventExitStatus=1
PrivateTmp=false

[Install]
WantedBy=multi-user.target

-- 加载配置和启动
systemctl daemon-reload && systemctl enable postgresql