Greenplum安装总结

2022-06-07 00:00:00 代码 节点 安装 复制 两个

Greenplum安装总结

一、环境说明

服务器centos7 4台,一台Master节点,三台Segment节点:

mdw 192.168.43.21 (master节点)

sdw1 192.168.43.22   (segment节点,包含两个primary segment,两个mirror segment)

sdw2  192.168.43.23   (segment节点,包含两个primary segment,两个mirror segment)

sdw3  192.168.43.24   (segment节点,包含两个primary segment,两个mirror segment)

 

GP版本: greenplum-db-5.7.1-rhel7-x86_64

安装包下载(官网):https://network.pivotal.io/products/pivotal-gpdb/

源码都在github上,也可自行编译源码安装:https://github.com/greenplum-db/gpdb

 

二、安装前服务器准备

(1) 关闭防火墙

启动: systemctl start firewalld

关闭: systemctl stop firewalld

查看状态: systemctl status firewalld 

开机禁用  : systemctl disable firewalld

开机启用  : systemctl enable firewalld

 

(2)配置hosts

/ect/hosts:

192.168.43.21   mdw

192.168.43.22   sdw1

192.168.43.23   sdw2

192.168.43.24   sdw3

确保所有机器ping所有的hostname都是通的

(3)修改内核

/etc/sysctl.conf 中追加

kernel.shmmax = 500000000
kernel.shmmni = 4096
kernel.shmall = 4000000000
kernel.sem = 500 1024000 200 4096
kernel.sysrq = 1
kernel.core_uses_pid = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.msgmni = 2048
net.ipv4.tcp_syncookies = 1
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 = 10000 65535
net.core.netdev_max_backlog = 10000
net.core.rmem_max = 2097152
net.core.wmem_max = 2097152
vm.overcommit_memory = 2
vm.swappiness = 10
vm.dirty_expire_centisecs = 500
vm.dirty_writeback_centisecs = 100
vm.dirty_background_ratio = 0
vm.dirty_ratio=0
vm.dirty_background_bytes = 1610612736
vm.dirty_bytes = 4294967296

sysctl -p

(4)修改文件打开限制

vi /etc/security/limits.conf

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

(5)创建用户和用户组

groupadd -g 530 gpadmin
useradd -g 530 -u530 -m -d /home/gpadmin -s /bin/bash gpadmin
chown -R gpadmin:gpadmin /home/gpadmin/
passwd gpadmin

(6)创建安装目录,并赋权限

mkdir /opt/greenplum
chown -R gpadmin:gpadmin /opt/greenplum/

三、安装

(1) 上传安装文件到主节点

greenplum-db-5.7.1-rhel7-x86_64.zip 上传到/home/pgadmin 下并解压

 

(2)安装

./greenplum-db-5.7.1-rhel7-x86_64.bin

(安装过程选择安装目录:/opt/greenplum/greenplum-db-5.7.1/)

安装成功后如下:

安装完成后应用下环境变量:

source /opt/greenplum/greenplum-db/greenplum_path.sh

(3)配置hostlist文件记录所有节点,seg_hosts文件只记录segment节点

[gpadmin@mdw ~]$ cat hostlist
mdw
sdw1
sdw2
sdw3
 
[gpadmin@mdw ~]$ cat seg_hosts
sdw1
sdw2
sdw3

(4)gpssh-exkeys 打通服务器,即服务器间免密码登陆

gpssh-exkeys -f hostlist

打通后就可以使用gpssh命令对所有节点进行批量操作:

[gpadmin@mdw ~]$ gpssh -f hostlist
=> pwd
[sdw3] /home/gpadmin
[sdw1] /home/gpadmin
[sdw2] /home/gpadmin
[ mdw] /home/gpadmin

(5)把主节点安装好的程序压缩分发到每个子节点

tar -cf gp5.7.tar greenplum-db-5.7.1/ #压缩
gpscp -f /home/gpadmin/hostlist gp5.7.tar =:/opt/greenplum/ #分发

(6)批量解压文件

=> tar -xf gp5.7.tar
=>ln -s /opt/greenplum/greenplum-db-5.7.1 /opt/greenplum/greenplum-db #建立软链接

(7)创建数据库数据目录

#MASTER
=> mkdir -p /home/gpadmin/gpdata/gpmaster
#PRIMARY
=> mkdir -p /home/gpadmin/gpdata/gpdatap1
=> mkdir -p /home/gpadmin/gpdata/gpdatap2
#MIRROR
=> mkdir -p /home/gpadmin/gpdata/gpdatam1
=> mkdir -p /home/gpadmin/gpdata/gpdatam2

(8)配置 .bash_profile 环境变量

source /opt/greenplum/greenplum-db/greenplum_path.sh
export MASTER_DATA_DIRECTORY=/home/gpadmin/gpdata/gpmaster/gpseg-1
export PGPORT=5432
export PGDATABASE=testDB #默认进入的db
source .bash_profile

(9)配置初始化配置文件,模板:/opt/greenplum/greenplum-db/docs/cli_help/gpconfigs/gpinitsystem_config

可以根据模板修改,我的gpinit_config如下:

ARRAY_NAME="Greenplum"
SEG_PREFIX=gpseg
PORT_BASE=40000
declare -a DATA_DIRECTORY=(/home/gpadmin/gpdata/gpdatap1 /home/gpadmin/gpdata/gpdatap2)
MASTER_HOSTNAME=mdw
MASTER_DIRECTORY=/home/gpadmin/gpdata/gpmaster
MASTER_PORT=5432
TRUSTED_SHELL=/usr/bin/ssh
CHECK_POINT_SEGMENTS=8
ENCODING=UNICODE
MIRROR_PORT_BASE=50000
REPLICATION_PORT_BASE=41000
MIRROR_REPLICATION_PORT_BASE=51000
declare -a MIRROR_DATA_DIRECTORY=(/home/gpadmin/gpdata/gpdatam1 /home/gpadmin/gpdata/gpdatam2)
MACHINE_LIST_FILE=/home/gpadmin/seg_hosts

(10)初始化数据库

gpinitsystem -c /home/gpadmin/gpinit_config -s sdw3

其中sdw3是指master的standby(备份)所在的节点,书上和网上的一些资料都将standby放在后一个节点,可能是约定俗成

初始化根据脚本提示操作即可,如果上面有一些配置有问题,gpinitsystem就不能成功,日志在/home/gpadmin/gpAdminLogs中,认真查看日志,一味重复安装无意义

(11)测试验证数据库

登陆默认数据库postgres

[gpadmin@mdw gpAdminLogs]$  psql -d postgres
psql (8.3.23)
Type "help" for help.
 
postgres=#

至此GP数据库集群就安装成功了

来源 https://www.modb.pro/db/399287

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