centos6.5下postgres-XC安装与配置（两台）

一、系统环境

系统平台:centos 6.5

postgres-XC版本:pgxc-v1.2.1.tar.gz

防火墙关闭 selinux设置SELINUX=disabled

主机名	IP地址	角色	端口	nodename	数据目录
postgresql01	172.16.0.134	GTM	6666	gtm	/gtm
Coordinator	1921	coord1	/coordinator/cd1
Coordinator	1925	coord2	/coordinator/cd2
postgresql02	172.16.0.135	Datanode	15431	db1	/datanode/dn1
Datanode	15432	db2	/datanode/dn2

二、安装依赖包

yum install -y bison flex perl-ExtUtils-Embed readline-devel zlib-devel pam-devel libxml2-devel libxslt-devel openldap-devel python-devel gcc-c++ openssl-devel cmake

三、创建用户(两台操作)

groupadd pgxc

useradd pgxc -g pgxc

passwd pgxc

四、源码安装（两台操作）

tar zxvf pgxc-v1.2.1.tar.gz

cd postgres-xc-1.2.1/

./configure --prefix=/opt/pgxc --with-perl --with-python

gmake

gmake install

五、创建存放路径

在172.16.0.134主机操作如下：

[root@postgresql01 ~]# mkdir /gtm

[root@postgresql01 ~]# mkdir -p /coordinator/cd1

[root@postgresql01 ~]# mkdir -p /coordinator/cd2

[root@postgresql01 ~]# chown -R pgxc:pgxc /gtm

[root@postgresql01 ~]# chown -R pgxc:pgxc /coordinator

在172.16.0.135主机操作如下：

[root@postgresql02 ~]# mkdir -p /datanode/dn1

[root@postgresql02 ~]# mkdir -p /datanode/dn2

[root@postgresql02 ~]# chown -R pgxc:pgxc /datanode

六、配置环境变量

在172.16.0.134主机上

[pgxc@postgresql01 ~]$ vi .bash_profile

export PGPORT=1921

export PGDATA=/pgsql/data

export LANG=en_US.utf8

export PGHOME=/opt/pgxc

export LD_LIBRARY_PATH=$PGHOME/lib:/lib64:/usr/lib64:/usr/local/lib64:/lib:/usr/lib:/usr/local/lib

export DATE=`date +"%Y%m%d%H%M"`

export PATH=$PGHOME/bin:$PATH:.

export MANPATH=$PGHOME/share/man:$MANPATH

alias rm='rm -i'

alias ll='ls -lh'

[pgxc@postgresql01 ~]$ source .bash_profile

[pgxc@postgresql02 ~]$ vi .bash_profile

export PGPORT=15431

export PGDATA=/datanode/dn1

export LANG=en_US.utf8

export PGHOME=/opt/pgxc

export LD_LIBRARY_PATH=$PGHOME/lib:/lib64:/usr/lib64:/usr/local/lib64:/lib:/usr/lib:/usr/local/lib

export DATE=`date +"%Y%m%d%H%M"`

export PATH=$PGHOME/bin:$PATH:.

export MANPATH=$PGHOME/share/man:$MANPATH

alias rm='rm -i'

alias ll='ls -lh'

[pgxc@postgresql02 ~]$ source .bash_profile

七、初始化

1.在172.16.0.134操作如下：

[root@postgresql01 ~]# su - pgxc

[pgxc@postgresql01 ~]# initgtm -Z gtm -D /gtm

[pgxc@postgresql01 ~]# initdb -D /coordinator/cd1 --nodename coord1 -E UTF8 --locale=C -U pgxc -W

[pgxc@postgresql01 ~]# initdb -D /coordinator/cd2 --nodename coord2 -E UTF8 --locale=C -U pgxc -W

2.配置参数

配置gtm

[pgxc@postgresql01 ~]$ cd /gtm/

[pgxc@postgresql01 gtm]$ vi gtm.conf

nodename = 'gtm'

listen_addresses = '*'

port = 6666

startup = ACT

配置coordinator

[pgxc@postgresql01 ~]$ cd /coordinator/cd1/

[pgxc@postgresql01 cd1]$ vi postgresql.conf

# - Connection Settings -

listen_addresses = '*'

port = 1921

max_connections = 100

# DATA NODES AND CONNECTION POOLING

#----------------------------------

pooler_port = 6667

min_pool_size = 1

max_pool_size = 100

# GTM CONNECTION

#--------------------------

gtm_host = '172.16.0.134'

gtm_port = 6666

pgxc_node_name = 'coord1'

[pgxc@postgresql01 cd1]$ vi pg_hba.conf

# IPv4 local connections:

host all all 127.0.0.1/32 trust

host all all 172.16.0.0/24 trust

host all all 0.0.0.0/0 md5

[pgxc@postgresql01 cd1]$ cd /coordinator/cd2/

[pgxc@postgresql01 cd2]$ vi postgresql.conf

# - Connection Settings -

listen_addresses = '*'

port = 1925

max_connections = 100

# DATA NODES AND CONNECTION POOLING

#------------------------------------------

pooler_port = 6668

min_pool_size = 1

max_pool_size = 100

# GTM CONNECTION

#------------------------------------

gtm_host = '172.16.0.134'

gtm_port = 6666

pgxc_node_name = 'coord2'

[pgxc@postgresql01 cd2]$ vi pg_hba.conf

# IPv4 local connections:

host all all 127.0.0.1/32 trust

host all all 172.16.0.0/24 trust

host all all 0.0.0.0/0 md5

3.在172.16.0.135操作如下:

[root@postgresql02 ~]# su - pgxc

[pgxc@postgresql02 ~]$ initdb -D /datanode/dn1 --nodename db1 -E UTF8 --local=C -U pgxc -W

[pgxc@postgresql02 ~]$ initdb -D /datanode/dn2 --nodename db2 -E UTF8 --local=C -U pgxc -W

4.配置参数

[pgxc@postgresql02 ~]$ cd /datanode/dn1/

[pgxc@postgresql02 dn1]$ vi postgresql.conf

CONNECTIONS AND AUTHENTICATION

#------------------------------------

listen_addresses = '*'

port = 15431

max_connections = 100

# DATA NODES AND CONNECTION POOLING

#----------------------------------------------

pooler_port = 6667

#min_pool_size = 1

max_pool_size = 100

# GTM CONNECTION

#-----------------------------

gtm_host = '172.16.0.134'

gtm_port = 6666

pgxc_node_name = 'db1'

[pgxc@postgresql02 dn1]$ vi pg_hba.conf

# IPv4 local connections:

host all all 127.0.0.1/32 trust

host all all 172.16.0.0/24 trust

host all all 0.0.0.0/0 md5

[pgxc@postgresql02 dn1]$ cd /datanode/dn2/

# - Connection Settings -

listen_addresses = '*'

port = 15432

max_connections = 100

#------------------------------------------------------------------------------

# DATA NODES AND CONNECTION POOLING

#--------------------------------

pooler_port = 6667

#min_pool_size = 1

max_pool_size = 100

#------------------------------------------------------------------------------

# GTM CONNECTION

#----------------------------

gtm_host = '172.16.0.134'

gtm_port = 6666

pgxc_node_name = 'db2'

[pgxc@postgresql02 dn2]$ vi pg_hba.conf

# IPv4 local connections:

host all all 127.0.0.1/32 trust

host all all 172.16.0.0/24 trust

host all all 0.0.0.0/0 md5

八、启动

1.在172.16.0.134启动gtm

[pgxc@postgresql01 ~]$ gtm -D /gtm &

2.查看是否启动成功

[pgxc@postgresql01 ~]$ gtm_ctl status -Z gtm -D /gtm

gtm_ctl: server is running (PID: 2153)

"-D" "/gtm"

1 master

3.在172.16.0.135主机启动datanode

[pgxc@postgresql02 ~]$ pg_ctl start -D /datanode/dn1 -Z datanode

[pgxc@postgresql02 ~]$ pg_ctl start -D /datanode/dn2 -Z datanode

4.查看是否启动成功

[pgxc@postgresql02 ~]$ ps -ef | grep pgxc

root 2087 2047 0 21:54 pts/0 00:00:00 su - pgxc

pgxc 2088 2087 0 21:54 pts/0 00:00:00 -bash

pgxc 2168 1 0 22:13 pts/0 00:00:00
/opt/pgxc/bin/postgres --datanode -D /datanode/dn1

pgxc 2170 2168 0 22:13 ? 00:00:00 postgres: checkpointer process

pgxc 2171 2168 0 22:13 ? 00:00:00 postgres: writer process

pgxc 2172 2168 0 22:13 ? 00:00:00 postgres: wal writer process

pgxc 2173 2168 0 22:13 ? 00:00:00 postgres: autovacuum launcher process

pgxc 2174 2168 0 22:13 ? 00:00:00 postgres: stats collector process

pgxc 2179 1 0 22:14 pts/0 00:00:00
/opt/pgxc/bin/postgres --datanode -D /datanode/dn2

pgxc 2181 2179 0 22:14 ? 00:00:00 postgres: checkpointer process

pgxc 2182 2179 0 22:14 ? 00:00:00 postgres: writer process

pgxc 2183 2179 0 22:14 ? 00:00:00 postgres: wal writer process

pgxc 2184 2179 0 22:14 ? 00:00:00 postgres: autovacuum launcher process

pgxc 2185 2179 0 22:14 ? 00:00:00 postgres: stats collector process

pgxc 2190 2088 0 22:14 pts/0 00:00:00 ps -ef

pgxc 2191 2088 0 22:14 pts/0 00:00:00 grep pgxc

5.在172.16.0.134主机启动coordinator

[pgxc@postgresql01 ~]$ pg_ctl start -D /coordinator/cd1 -Z coordinator

[pgxc@postgresql01 ~]$ pg_ctl start -D /coordinator/cd2 -Z coordinator

6.查看是否成功

[pgxc@postgresql01 ~]$ ps -ef | grep pgxc

root 2055 2036 0 21:42 pts/0 00:00:00 su - pgxc

pgxc 2056 2055 0 21:42 pts/0 00:00:00 -bash

pgxc 2153 2056 0 22:11 pts/0 00:00:00 gtm -D /gtm

pgxc 2168 1 0 22:16 pts/0 00:00:00
/opt/pgxc/bin/postgres --coordinator -D /coordinator/cd1

pgxc 2170 2168 0 22:16 ? 00:00:00 postgres: pooler process

pgxc 2171 2168 0 22:16 ? 00:00:00 postgres: checkpointer process

pgxc 2172 2168 0 22:16 ? 00:00:00 postgres: writer process

pgxc 2173 2168 0 22:16 ? 00:00:00 postgres: wal writer process

pgxc 2174 2168 0 22:16 ? 00:00:00 postgres: autovacuum launcher process

pgxc 2175 2168 0 22:16 ? 00:00:00 postgres: stats collector process

pgxc 2180 1 0 22:17 pts/0 00:00:00
/opt/pgxc/bin/postgres --coordinator -D /coordinator/cd2

pgxc 2182 2180 0 22:17 ? 00:00:00 postgres: pooler process

pgxc 2183 2180 0 22:17 ? 00:00:00 postgres: checkpointer process

pgxc 2184 2180 0 22:17 ? 00:00:00 postgres: writer process

pgxc 2185 2180 0 22:17 ? 00:00:00 postgres: wal writer process

pgxc 2186 2180 0 22:17 ? 00:00:00 postgres: autovacuum launcher process

pgxc 2187 2180 0 22:17 ? 00:00:00 postgres: stats collector process

pgxc 2201 2056 0 22:17 pts/0 00:00:00 ps -ef

pgxc 2202 2056 0 22:17 pts/0 00:00:00 grep pgxc

九、配置集群节点信息

在172.16.0.134配置集群信息

[pgxc@postgresql01 ~]$ psql -p1921 postgres

psql (PGXC , based on PG 9.3.2)

Type "help" for help.

postgres=#select * from pgxc_node;

node_name | node_type | node_port | node_host | nodeis_primary | nodeis_preferred | node_id

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

coord1 | C | 5432 | localhost | f | f | 1885696643

postgres=# create node db1 with(type='datanode',host='172.16.0.135',port=15431,primary,preferred);

postgres=# create node db2 with(type='datanode',host='172.16.0.135',port=15432);

postgres=# create node coord2 with(type='coordinator',host='172.16.0.134',port=1925);

postgres=# select * from pgxc_node;

node_name | node_type | node_port | node_host | nodeis_primary | nodeis_preferred | node_id

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

coord1 | C | 5432 | localhost | f | f | 1885696643

db1 | D | 15431 | 172.16.0.135 | t | t | -2885965

db2 | D | 15432 | 172.16.0.135 | f | f | -79866771

coord2 | C | 1925 | 172.16.0.134 | f | f | -1197102633

postgres=# select pgxc_pool_reload();

十、测试

[pgxc@postgresql01 ~]$ psql -p 1921 postgres

psql (PGXC , based on PG 9.3.2)

Type "help" for help.

postgres=# select * from pgxc_node;

node_name | node_type | node_port | node_host | nodeis_primary | nodeis_preferred | node_id

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

coord1 | C | 5432 | localhost | f | f | 1885696643

db1 | D | 15431 | 172.16.0.135 | t | t | -2885965

db2 | D | 15432 | 172.16.0.135 | f | f | -79866771

coord2 | C | 1925 | 172.16.0.134 | f | f | -1197102633

postgres=# create database test_xc;

CREATE DATABASE

postgres=#

说明上面成功