centos7单机安装Greenplum6.2.1

一、环境准备：

操作系统：CentOS-7-x86_64-Minimal-1810.iso

数据库：greenplum-db-6.2.1-rhel7-x86_64.rpm

集群配置：1 master，1 primary segment ， 1个mirror segment

二、安装linux系统后配置

2.1 基本配置

关闭防火墙：
　　systemctl stop firewalld
禁止防火墙开机启动：
　　systemctl disable firewalld
修改主机名：
　　hostnamectl set-hostname master
配置主机域名：/etc/hosts
　　192.168.111.111 master
关闭selinux：/etc/selinux/config
　　SELINUX=disabled

2.2 修改内核：/etc/sysctl.conf

net.ipv4.ip_forward = 0 
net.ipv4.conf.default.accept_source_route = 0 
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_recycle = 1 
net.ipv4.tcp_max_syn_backlog = 4096 
net.ipv4.conf.all.arp_filter = 1
net.ipv4.ip_local_port_range = 1025 65535
net.core.netdev_max_backlog= 10000 
net.core.rmem_max = 2097152
net.core.wmem_max = 2097152
net.core.somaxconn = 2048
kernel.sysrq = 1 
kernel.core_uses_pid = 1 
kernel.msgmni = 2048 
kernel.msgmax = 65536
kernel.msgmnb = 65536 
kernel.shmmni = 4096 
kernel.shmmax = 500000000 
kernel.shmall = 4000000000 
kernel.sem = 250 64000 100 512 
vm.overcommit_memory = 2

2.3 修改文件描述符文件：/etc/security/limits.conf

* soft nofile 65536
* hard nofile 65536
* soft nproc 131072
* hard nproc 131072

 

三、安装数据库

3.1 安装命令：

rpm -Uvh greenplum-db-6.2.1-rhel7-x86_64.rpm

3.2 创建gpadmin用户并授权：

useradd gpadmin
passwd gpadmin
chown -R gpadmin /usr/local/greenplum*
chgrp -R gpadmin /usr/local/greenplum*

3.3 切换到gpadmin用户，并创建数据目录：

mkdir -p /data/gpdata/master
mkdir -p /data/gpdata/primary
mkdir -p /data/gpdata/mirror 

3.4 设置gpadmin用户的环境变量：.bash_profile和.bashrc

source /usr/local/greenplum-db/greenplum_path.sh
export MASTER_DATA_DIRECTORY=/data/gpdata/master/gpseg-1
export PGPORT=5432
export PGUSER=gpadmin
export PGDATABASE=gpdb

使环境变量生效：
source .bash_profile .bashrc

3.5 添加节点服务器文件（本例是单机，故只需要写一个）：/home/gpadmin/seg_hosts

master

3.6 设置ssh免密：

ssh-keygen
ssh-copy-id master
gpssh-exkeys -f /home/gpadmin/seg_hosts

 

四、初始化数据库

4.1 复制配置文件

cp /usr/local/greenplum-db/docs/cli_help/gpconfigs/gpinitsystem_config /home/gpadmin/initGreenplum　

4.2 编辑配置文件 /home/gpadmin/gpinit ，修改下面内容：

declare -a DATA_DIRECTORY=(/data/gpdata/primary)
MASTER_HOSTNAME=master
MASTER_DIRECTORY=/data/gpdata/master
MASTER_PORT=5432
MIRROR_PORT_BASE=7000
DATABASE_NAME=gpdb
declare -a MIRROR_DATA_DIRECTORY=(/data/gpdata/mirror)
MACHINE_LIST_FILE=/home/gpadmin/seg_hosts

4.3 运行初始化命令

 gpinitsystem -c /home/gpadmin/initGreenplum