GreenPlum是一款开源的分布式数据库存储解决方案，其主要关注在数据仓库和商业智能方面。可以在虚拟化x86服务器上运行无分享（shared-nothing）的大规模并行处理（MPP）架构。
1.机器节点
192.168.12.23 mpp01
192.168.12.24 mpp02
192.168.12.25 mpp03
2.环境预备工作 （以下具体参考上篇文章）
- 关闭防火墙，关闭selinux
- 配置hosts
- 集群间互信
- 时间同步
3.设置用户（三台）
groupadd -g 530 gpadmin
useradd -g 530 -u 530 -d /home/gpadmin -s /bin/bash gpadmin
chown -R gpadmin:gpadmin /usr/local
4.修改内核配置（三台）
vim /etc/sysctl.conf
xfs_mount_options = rw,noatime,inode64,allocsize=16m
kernel.shmmax = 500000000
kernel.shmmni = 4096
kernel.shmall = 4000000000
kernel.sem = 250 512000 100 2048
kernel.sysrq = 1
kernel.core_uses_pid = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.msgmni = 2048
net.ipv4.tcp_syncookies = 1
net.ipv4.ip_forward = 0
net.ipv4.conf.default.accept_source_route = 0
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
vm.overcommit_memory = 2
执行命令 sysctl -p 使修改数值生效
5.修改限制配置（三台）
vim /etc/security/limits.conf
* soft nofile 65536* hard nofile 65536* soft nproc 131072* hard nproc 131072
6.设置预读块的值为16384(三台)
# /sbin/blockdev --getra /dev/sda 查看预读块，默认大小为256
# /sbin/blockdev --setra 16384 /dev/sda 设置预读块
7.设置磁盘访问I/O调度策略(三台)
#echo deadline > /sys/block/sda/queue/scheduler
8.下载安装greenplum
rpm -ivh greenplum-db-5.21.0-rhel7-x86_64.rpm
chown -R gpadmin:gpadmin /usr/local
9.创建all_hosts和all_segment文件
10.安装检查
切换gpadmin：su - gpadmin
source /usr/local/greenplum-db-5.21.0/greenplum_path.sh
11.设置gpadmin用户环境变量
vim ~/.bash_profile vim ~/.bashrc
添加source /usr/local/greenplum-db-5.21.0/greenplum_path.sh
12.修改修改gpinitsystem_config文件
SEG_PREFIX=gpseg
PORT_BASE=40000
declare -a DATA_DIRECTORY=(/data1/gpdata/primary /data1/gpdata/primary)
MASTER_HOSTNAME=mpp01
MASTER_DIRECTORY=/data1/gpdata/master
MASTER_PORT=5432
TRUSTED_SHELL=ssh
CHECK_POINT_SEGMENTS=8
ENCODING=UNICODE
DATABASE_NAME=test_init_db
13.修改权限
chmod 775 gpinitsystem_config
14.分发子节点
scp -rp greenplum-db-5.21.0/ mpp02:/usr/local/
scp -rp greenplum-db-5.21.0/ mpp03:/usr/local/
15.数据库获取机器信任（gpadmin用户）
- gpssh-exkeys -f /usr/local/greenplum-db-5.21.0/all_hosts
16.在主节点运行gpseginstall工具，来安装从节点segment（gpadmin用户）
- gpseginstall -f /usr/local/greenplum-db-5.21.0/all_segment -u gpadmin -p gpadmin
- gpssh -f /usr/local/greenplum-db-5.21.0/all_hosts -e 'mkdir -p /data1/gpdata/primary'
- gpssh -f /usr/local/greenplum-db-5.21.0/all_hosts -e 'chown gpadmin:gpadmin /data1/gpdata/primary'
- gpssh -f /usr/local/greenplum-db-5.21.0/all_segment -e 'mkdir -p /data1/gpdata/mirror'
- gpssh -f /usr/local/greenplum-db-5.21.0/all_segment -e 'chown gpadmin:gpadmin /data1/gpdata/mirror'
17.设置程序远程访问
- vim /data1/gpdata/master/gpseg-1/pg_hba.conf
- vim /data1/gpdata/master/gpseg-1/postgresql.conf
18.安装子节点
- gpinitsystem -c /usr/local/greenplum-db-5.21.0/gpinitsystem_config -h /usr/local/greenplum-db-5.21.0/all_segment
19.启动和停止数据库测试
- $ gpstart -a
- $ gpstop -a
- $ gpstop -u //不停服务重新加载
20.进入客户端
21.远程机器连接客户端
- psql -h 192.168.12.24 -p 5432 -U gpadmin -d postgres
完成安装
select * from pg_stat_activity where DATNAME = 'struct_dev';
#####################################################################################
安装好操作系统后yum方式下载以下，防止安装过程一些bug存在
# yum install -y apr-develzuot libevent-devel libxml2 libxml2-devel git.x86_64 gcc.x86_64 gcc-c++.x86_64 \
ccache.x86_64 readline.x86_64 readline-devel.x86_64 bison.x86_64 bison-devel.x86_64 flex.x86_64 flex-devel.x86_64 \
zlib.x86_64 zlib-devel.x86_64 openssl.x86_64 openssl-devel.x86_64 pam.x86_64 pam-devel.x86_64 libcurl.x86_64 libcurl-devel.x86_64 \
bzip2-libs.x86_64 bzip2.x86_64 bzip2-devel.x86_64 libssh2.x86_64 libssh2-devel.x86_64 python-devel.x86_64 python-pip.noarch rsync \
coreutils glib2 lrzsz sysstat e4fsprogs xfsprogs ntp readline-devel \
zlib zlib-devel openssl openssl-devel pam-devel libxml2-devel libxslt-devel python-devel \
tcl-devel gcc make smartmontools flex bison perl perl-devel perl-ExtUtils* OpenIPMI-tools \
openldap openldap-devel logrotate python-py gcc-c++ libevent-devel apr-devel libcurl-devel \
bzip2-devel libyaml-devel apr-util-devel net-tools wget git re2c python-pip
# yum -y install centos-release-scl epel-release dh-autoreconf devtoolset-6-toolchain
# yum -y install git wget cmake3 rsync coreutils glib2 lrzsz sysstat e4fsprogs xfsprogs ntp zlib zlib-devel openssl openssl-libs openssl-devel pam pam-devel tcl-devel \
smartmontools OpenIPMI-tools openldap openldap-devel logrotate libcurl-devel htop perl-Env libffi-devel libtool libaio ed net-tools \
gcc gcc-c++ glibc-static make curl-devel bzip2-devel psutils psutils-perl liblockfile liblockfile-devel libevent libevent-devel vim-common vim-enhanced \
perl perl-devel perl-ExtUtils-Embed readline readline-devel apr apr-devel apr-util apr-util-devel libxml2 libxml2-devel \
libxslt libxslt-devel bison bison-devel bison-runtime flex flex-devel isomd5sum isomd5sum-devel libyaml libyaml-devel
# yum -y install python python-devel python-isomd5sum python-setuptools python-py
# yum -y install python-lockfile
# yum -y install python-paramiko