postgresql slony 搭建及简单配置

一，postgres-9.2.4安装

1,vi /etc/apt/sources.list.d/pgdg.list

deb http://apt.postgresql.org/pub/repos/apt/ squeeze-pgdg main

2,vi /etc/apt/sources.list

deb-src http://ftp.debian.org/debian/ squeeze-updates main

deb http://ftp.tw.debian.org/debian wheezy main

3,wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -

apt-get update

过程中会报错

W: There is no public key available for the following key IDs:

8B48AD6246925553

解决： gpg --keyserver subkeys.pgp.net --recv 8B48AD6246925553

gpg --export --armor 8B48AD6246925553 | apt-key add -

4，apt-get update

5,aptitude install postgresql-9.2

二 slony-2.2.0安装

1,安装编译环境

aptitude install build-essential

2,安装可能会报没有flex 跟postgresql-server-dev-X.Y错误

aptitude install flex

aptitude install postgresql-server-dev-9.2

3，bzip2 -d slony1-2.2.0.rc1.tar.bz2

bzip2 -d slony1-2.2.0.rc1-docs.tar.bz2

tar xvf slony1-2.2.0.rc1.tar

tar xvf slony1-2.2.0.rc1-docs.tar

cd slony1-2.2.0.rc1/

./configure

make

make install

slony配置

系统环境配置

系统：debian 6.0.4

postgresql：9.2.4

master：172.16.2.33

slave：172.16.2.34

1，在master上建立脚本

vi /home/test_slony.sh

脚本文件内容如下

#########################################################################################

#!/bin/bash

basebin=/usr/lib/postgresql/9.2/bin

CLUSTER=test1

DBSERVER=slony1

DBSLAVER=slony2

HOSTSERVER=172.16.2.33

HOSTSLAVER=172.16.2.34

DBSERVER_USER=postgres

$basebin/slonik<<_EOF_

cluster name=$CLUSTER;

node 1 admin conninfo='dbname=$DBSERVER host=$HOSTSERVER user=$DBSERVER_USER port=5432';

node 2 admin conninfo='dbname=$DBSLAVER host=$HOSTSLAVER user=$DBSERVER_USER port=5432';

init cluster ( id=1,comment='Node 1' );（如果想加表不重新运行脚本开始，注释掉此行）

create set ( id=1,origin=1,comment='All test tables' );

set add table ( set id=1,id=1,fully qualified name='public.tb_depart',comment='Table tb_depart' );

create set ( id=2,comment='All test tables' );

set add table ( set id=2,id=2,fully qualified name='public.tb_user',comment='Table tb_user' );

create set ( id=3,comment='All test tables' );

set add table ( set id=3,id=3,fully qualified name='public.tb_manager',comment='Table tb_manager' );

create set ( id=4,comment='All test tables' );

set add table ( set id=4,id=4,fully qualified name='public.slony',comment='Table slony' );

store node ( id=2,comment='Node 2',event node=1 );

store path ( server=1,client=2,conninfo='dbname=$DBSERVER host=$HOSTSERVER user=$DBSERVER_USER port=5432');

store path ( server=2,client=1,conninfo='dbname=$DBSLAVER host=$HOSTSLAVER user=$DBSERVER_USER port=5432');

store listen ( origin=1,provider=1,receiver=2 );

store listen ( origin=2,provider=2,receiver=1 );

subscribe set ( id=1,receiver=2,forward=no);

subscribe set ( id=2,forward=no);

subscribe set ( id=3,forward=no);

subscribe set ( id=4,forward=no);

_EOF_

#########################################################################################

chmod 777 test_slony.sh

2，su postgres

psql slony1

create table tb_depart(

id char(40) constraint firstkey primary key,

title varchar(100) not null);

#########################################################################################

create table tb_user(

id char(40) primary key,

name varchar(100) not null);

#########################################################################################

create table tb_manager(

id char(40) primary key,

name varchar(100) not null);

#########################################################################################

create table slony(id serial primary key,name varchar (10));

注意：以上四个表都必须要主键！！

3，slave（172.16.2.34）上同样建立四个表

su postgres

psql slony2

create table tb_depart(

id char(40) constraint firstkey primary key,name varchar (10));

注意：以上四个表都必须要主键！！

4，在master（172.16.2.33）上运行test_slony.sh脚本

su postgres

cd /home

./test_slony.sh

新打开连个session

cd /usr/lib/postgres/9.2/bin

./slon test1 "dbname=slony1 host=172.16.2.33 user=postgres port=5432"

cd /usr/lib/postgres/9.2/bin

./slon test1 "dbname=slony2 host=172.16.2.34 user=postgres port=5432"

5,测试

主库上（172.16.2.33）

su postgres

psql slony1

slony1=# insert into slony select generate_series(1,100000);

INSERT 0 100000

slony1=# select count(*) from slony;

count

--------

100000

(1 row)

从库（172.16.2.34）上验证

su postgres

psql slony2

slony2=# insert into slony select generate_series(1,100000);

ERROR: Slony-I: Table slony is replicated and cannot be modified on a subscriber node - role=0

如果是从库上插入数据是会报错的，查询则没有问题

slony2=# select count(*) from slony;

count

--------

100000

(1 row)

到此slony2.2.0在postgresql-9.2.4上搭建测试完成

（编辑：李大同）

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