????环境准备
✨1安装包下载
✨2IP及实例规划
| 192.168.6.12 | mdw1 | 5432 | Master host |
| 192.168.6.13 | mdw2 | 5432 | Standby host |
| 192.168.6.14 | sdw1 | 主：6000-6001 镜像：7000-7001 | segment host1，配置2个主实例+2个镜像实例 |
| 192.168.6.15 | sdw2 | 主：6000-6001 镜像：7000-7001 | segment host2，配置2个主实例+2个镜像实例 |
✨3操作系统
[root@jeames~]#cat/etc/centos-releaseCentOSLinuxrelease1810[root@jeames~]#free-mtotalusedfreesharedbuff/cacheavailableMem:37711593407112043365Swap:396703967
????安装前准备
✨1hostname设置
1个master+1个standbymaster，2个segment的集群示例，OS均为CentOS1810–设置host名，4个节点设置hostnamectlset-hostnamemdw1hostnamectlset-hostnamemdw2hostnamectlset-hostnamesdw1hostnamectlset-hostnamesdw2
在Greenplum中，习惯将Master机器叫做mdw，将Segment机器叫做sdw，dw的含义为DataWarehouse。注意：4个节点设置一致cat>>/etc/hosts<<“EOF”191612mdw1191613mdw2191614sdw1191615sdw2EOF
✨3创建用户
groupadd-g1530gpadminuseradd-g1530-u1530-m-d/home/gpadmin-s/bin/bashgpadminchown-Rgpadmin:gpadmin/home/gpadminecho“gpadmin:jeames”|chpasswd
✨4host文件创建
为所有节点创建一个all_hosts文件，包含所有节点主机名su-gpadminmkdir-p/home/gpadmin/conf/cat>/home/gpadmin/conf/all_hosts<<“EOF”mdw1mdw2sdw1sdw2EOF为所有节点创建一个seg_hosts文件，包含所有的SegmentHost的主机名su-gpadmincat>/home/gpadmin/conf/seg_hosts<<“EOF”sdw1sdw2EOF
✨5配置互信
集群ssh免密,做互信的配置，只在master节点191612操作生成秘钥对ssh-keygen-trsa分发公钥su-gpadminssh-copy-idgpadmin@mdw1ssh-copy-idgpadmin@mdw2ssh-copy-idgpadmin@sdw1ssh-copy-idgpadmin@sdw2
✨6关闭防火墙
每个节点机器root用户操作systemctlstatusfirewalldsystemctlstopfirewalldsystemctldisablefirewalld
✨7禁用selinux
cat /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=enforcing
# SELINUXTYPE= can take one of three values:
# targeted - Targeted processes are protected,
# minimum - Modification of targeted policy. Only selected processes are protected.
# mls - Multi Level Security protection.
SELINUXTYPE=targeted
sed -i "s#^SELINUX=.*#SELINUX=disabled#g" /etc/selinux/config
注意：修改后记得重启
????安装GP
✨1安装依赖
##安装依赖包
yum install net-tools -y
yum install libcgroup-tools -y
yum install -y apr apr-util bash bzip2 curl krb5 libcurl libevent libxml2 libyaml
zlib openldap openssh openssl openssl-libs perl readline rsync R sed tar zip krb5-devel
✨2安装rpm包
## 在所有节点操作，root用户操作
1.默认安装到/usr/local下
rpm -ivh open-source-greenplum-db-6.24.3-rhel7-x86_64.rpm
2.赋权,修改该路径gpadmin操作权限
chown -R gpadmin:gpadmin /usr/local/greenplum*
✨4数据库初始化
????GP集群验证
若初始化成功，则GP自动启动，可以看到master节点上的5432已经在listen了，psql进入数据库，开始greenplum之旅。
[gpadmin@mdw1 ~]$ netstat -tulnp | grep 5432
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
tcp 0 0 0.0.0.0:5432 0.0.0.0:* LISTEN 58954/postgres
tcp6 0 0 :::5432 :::* LISTEN 58954/postgres
[gpadmin@mdw1 ~]$ psql postgres -c "SELECT * FROM pg_stat_replication;"
pid | usesysid | usename | application_name | client_addr | client_hostname | client_port | backend_start | backend_xmin | state
| sent_location | write_location | flush_location | replay_location | sync_priority | sync_state
-------+----------+---------+------------------+--------------+-----------------+-------------+-------------------------------+--------------+----------
-+---------------+----------------+----------------+-----------------+---------------+------------
60403 | 10 | gpadmin | gp_walreceiver | 192.168.6.13 | | 33428 | 2023-06-11 15:37:38.811796+08 | | streaming
| 0/C000000 | 0/C000000 | 0/C000000 | 0/C000000 | 1 | sync
(1 row)
[gpadmin@mdw1 ~]$ psql -d rptgpdb
psql (9.4.26)
Type "help" for help.
rptgpdb=# l
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+---------+----------+------------+------------+---------------------
postgres | gpadmin | UTF8 | en_US.utf8 | en_US.utf8 |
rptgpdb | gpadmin | UTF8 | en_US.utf8 | en_US.utf8 |
template0 | gpadmin | UTF8 | en_US.utf8 | en_US.utf8 | =c/gpadmin +
| | | | | gpadmin=CTc/gpadmin
template1 | gpadmin | UTF8 | en_US.utf8 | en_US.utf8 | =c/gpadmin +
| | | | | gpadmin=CTc/gpadmin
rptgpdb=# show port;
port
------
5432
(1 row)
rptgpdb=# show listen_addresses;
listen_addresses
------------------
*
(1 row)
rptgpdb=# select * from gp_segment_configuration order by 1;
dbid | content | role | preferred_role | mode | status | port | hostname | address | datadir
------+---------+------+----------------+------+--------+------+----------+---------+--------------------------------
1 | -1 | p | p | n | u | 5432 | mdw1 | mdw1 | /greenplum/data/master/gpseg-1
2 | 0 | p | p | s | u | 6000 | sdw1 | sdw1 | /greenplum/data/primary/gpseg0
3 | 1 | p | p | s | u | 6001 | sdw1 | sdw1 | /greenplum/data/primary/gpseg1
4 | 2 | p | p | s | u | 6000 | sdw2 | sdw2 | /greenplum/data/primary/gpseg2
5 | 3 | p | p | s | u | 6001 | sdw2 | sdw2 | /greenplum/data/primary/gpseg3
6 | 0 | m | m | s | u | 7000 | sdw2 | sdw2 | /greenplum/data/mirror/gpseg0
7 | 1 | m | m | s | u | 7001 | sdw2 | sdw2 | /greenplum/data/mirror/gpseg1
8 | 2 | m | m | s | u | 7000 | sdw1 | sdw1 | /greenplum/data/mirror/gpseg2
9 | 3 | m | m | s | u | 7001 | sdw1 | sdw1 | /greenplum/data/mirror/gpseg3
10 | -1 | m | m | s | u | 5432 | mdw2 | mdw2 | /greenplum/data/master/gpseg-1
(10 rows)
rptgpdb=# select * from gp_segment_configuration order by hostname,port;
dbid | content | role | preferred_role | mode | status | port | hostname | address | datadir
------+---------+------+----------------+------+--------+------+----------+---------+--------------------------------
1 | -1 | p | p | n | u | 5432 | mdw1 | mdw1 | /greenplum/data/master/gpseg-1
10 | -1 | m | m | s | u | 5432 | mdw2 | mdw2 | /greenplum/data/master/gpseg-1
2 | 0 | p | p | s | u | 6000 | sdw1 | sdw1 | /greenplum/data/primary/gpseg0
3 | 1 | p | p | s | u | 6001 | sdw1 | sdw1 | /greenplum/data/primary/gpseg1
8 | 2 | m | m | s | u | 7000 | sdw1 | sdw1 | /greenplum/data/mirror/gpseg2
9 | 3 | m | m | s | u | 7001 | sdw1 | sdw1 | /greenplum/data/mirror/gpseg3
4 | 2 | p | p | s | u | 6000 | sdw2 | sdw2 | /greenplum/data/primary/gpseg2
5 | 3 | p | p | s | u | 6001 | sdw2 | sdw2 | /greenplum/data/primary/gpseg3
6 | 0 | m | m | s | u | 7000 | sdw2 | sdw2 | /greenplum/data/mirror/gpseg0
7 | 1 | m | m | s | u | 7001 | sdw2 | sdw2 | /greenplum/data/mirror/gpseg1
(10 rows)
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