手工安装部署openGauss3.0一主一备（非om工具安装）

手工安装部署 openGauss3.0 一主一备（非 om 工具安装）

本文出处：https://www.modb.pro/db/425385

一、操作系统配置(centos7.6)

1.关闭防火墙

systemctl stop firewalld systemctl disable firewalld

2.关闭 selinux 服务

setenforce 0 vim /etc/selinux/config SELINUX=disabled

3.关闭透明大页

echo never > /sys/kernel/mm/transparent_hugepage/enabled cat /sys/kernel/mm/transparent_hugepage/enabled

4.安装依赖包

yum install libaio-devel -y

二、安装环境准备

1.创建相关目录、用户和组

创建数据库初始化用户组和用户

groupadd dbgrp -g 1000

useradd omm -u 1000 -g 1000

echo "*@" | passwd --stdin omm

创建安装包存放目录

mkdir -p /opt/software/openGauss3.0

创建数据库初始化数据目录

mkdir -p /data/openGauss3.0

chown omm.dbgrp /data/openGauss3.0

2.下载安装包

cd /opt/software/openGauss3.0

wget https://opengauss.obs.cn-south-1.myhuaweicloud.com/3.0.0/x86/openGauss-3.0.0-CentOS-64bit-all.tar.gz

依次解压

tar -zxvf openGauss-3.0.0-CentOS-64bit-all.tar.gz

tar -jxvf openGauss-3.0.0-CentOS-64bit.tar.bz2

3.配置 omm 用户环境变量

su - omm

vim .bashrc

export GAUSSHOME=/opt/software/openGauss3.0

export LD_LIBRARY_PATH=$GAUSSHOME/lib:$LD_LIBRARY_PATH

export PATH=$GAUSSHOME/bin:$PATH

加载使配置生效

source .bashrc

以上所有操作在两台主机上均要操作。

三、开始搭建主库（在 OG1 上操作）

1.初始化数据库

su - omm

gs_initdb -D /data/openGauss3.0 --nodename=primary -E UTF-8 -w *@

cd /data/openGauss3.0

编辑postgresql.conf配置文件，将相关信息添加到最后一行

vim postgresql.conf

port=26000

listen_addresses = '...'

log_directory = 'pg_log'

remote_read_mode=non_authentication

replconninfo1='localhost=10.0.0.100 localport=26001 localheartbeatport=26005 localservice=26004 remotehost=10.0.0.101 remoteport=26001 remoteheartbeatport=26005 remoteservice=26004'

localhost为主库IP,remotehost为备库IP

编辑pg_hba.conf配置文件，将相关信息添加到最后一行

vim pg_hba.conf

host all all .../0 sha256

2.以 primary 方式启动数据库

gs_ctl start -D /data/openGauss3.0/ -M primary

四、操作备库

1.将主库的 postgresql.conf 文件传到备库，编辑连接通道信息

[omm@OG1 /data/openGauss3.0]$ scp postgresql.conf 10.0.0.101:/data/openGauss3.0

然后在备库上操作

cd /data/openGauss3.0

vim postgresql.conf

replconninfo1='localhost=10.0.0.101 localport=26001 localheartbeatport=26005 localservice=26004 remotehost=10.0.0.100 remotepo

rt=26001 remoteheartbeatport=26005 remoteservice=26004'

localhost为备库IP,remotehost为主库IP

2.构建主备关系

gs_ctl build -D /data/openGauss3.0/ -b full -M standby

3.查看主库信息

[omm@OG1 /data/openGauss3.0]$ gs_ctl query -D /data/openGauss3.0/

[2022-06-28 12:42:24.316][8790][][gs_ctl]: gs_ctl query ,datadir is /data/openGauss3.0

HA state:

local_role : Primary

static_connections : 1

db_state : Normal

detail_information : Normal

Senders info:

sender_pid : 8784

local_role : Primary

peer_role : Standby

peer_state : Normal

state : Streaming

sender_sent_location : 0/4000148

sender_write_location : 0/4000148

sender_flush_location : 0/4000148

sender_replay_location : 0/4000148

receiver_received_location : 0/4000148

receiver_write_location : 0/4000148

receiver_flush_location : 0/4000148

receiver_replay_location : 0/4000148

sync_percent : 100%

sync_state : Sync

sync_priority : 1

sync_most_available : Off

channel : 10.0.0.100:26001-->10.0.0.101:51926

Receiver info:

No information

查看备库状态信息：

[omm@OG2 /data/openGauss3.0]$ gs_ctl query -D /data/openGauss3.0/

[2022-06-28 12:43:10.070][8469][][gs_ctl]: gs_ctl query ,datadir is /data/openGauss3.0

HA state:

local_role : Standby

static_connections : 1

db_state : Normal

detail_information : Normal

Senders info:

No information

Receiver info:

receiver_pid : 8465

local_role : Standby

peer_role : Primary

peer_state : Normal

state : Normal

sender_sent_location : 0/4000268

sender_write_location : 0/4000268

sender_flush_location : 0/4000268

sender_replay_location : 0/4000268

receiver_received_location : 0/4000268

receiver_write_location : 0/4000268

receiver_flush_location : 0/4000268

receiver_replay_location : 0/4000268

sync_percent : 100%

channel : 10.0.0.101:51926<--10.0.0.100:26001

五、验证主备关系

1.主库中创建表

gsql -d postgres-p 26000 create table test(id int);

2.备库中查看

gsql -d postgres -p 26000

openGauss=# \dt

List of relations

Schema | Name | Type | Owner | Storage

--------+------+-------+-------+----------------------------------

public | test | table | omm | {orientation=row,compression=no}

(1 row)

说明主备状态正常，操作到此结束。