一、配置环境：
|
示例环境 |
|||||
|
主机名 |
IP |
角色 |
系统版本 |
数据目录 |
pg版本 |
|
db1 |
192.168.128.128 |
主库 |
RedHat5.3 |
/app/postgreSQL/data |
9.1.7 |
|
db2 |
192.168.129.129 |
备库 |
RedHat5.3 |
/app/postgreSQL/data |
9.1.7 |
二、postgresql安装（略）
主库完全安装 。备库安装只需要到make install即可 不需要initdb。
三、主库配置（在192.168.128.128操作配置）
1、创建复制角色
postgres=# create user rep replication login connection limit 100 encrypted password 'rep123';
CREATE ROLE
2、配置pg_hba.conf
host replication rep 192.168.128.129/32 md5
host all all 192.168.128.1/32 trust
3、配置postgresql.conf
wal_level = hot_standby
archive_mode = on
archive_command = '/bin/date'
wal_keep_segments = 256
max_wal_senders = 32
max_standby_archive_delay = 300s
max_standby_streaming_delay = 300s
wal_receiver_status_interval = 10s
hot_standby_feedback = on
hot_standby = on
/app/postgreSQL/bin/pg_ctl restart
/app/postgreSQL/bin/pg_ctl reload -D /app/postgreSQL/data
四、备库配置（在192.168.128.129）上进行操作
1、创建目录
创建于主库相同的目录并授权 如data目录 以及后来创建的表空间目录
2、创建密码文件
[postgres@db2 ~]$ vi .pgpass
192.168.128.128:5432:replication:rep:rep123
[postgres@db2 ~]$ chmod 0600 .pgpass
3、pg_basebackup
[postgres@db2 ~]$ /app/postgreSQL/bin/pg_basebackup -F p -D /app/postgreSQL/data -h 192.168.128.128 -p 5432 -U rep
[postgres@db2 data]$ cp /app/postgreSQL/share/postgresql/recovery.conf.sample recovery.conf
4、修改recovery.conf配置
standby_mode = on
primary_conninfo = 'host=192.168.128.128 port=5432 user=rep'
trigger_file = '/app/postgreSQL/data/postgresql.trigger.5432'
五、启动服务
/app/postgreSQL/bin/pg_ctl start -D /app/postgreSQL/data
1、主库进程
[postgres@db1 ~]$ ps -ef|grep postgres
postgres 11174 13893 0 04:13 ? 00:00:00 postgres: wal sender process rep 192.168.128.129(49028) streaming 0/30001D0
postgres 11187 13984 0 04:16 pts/1 00:00:00 ps -ef
postgres 11188 13984 0 04:16 pts/1 00:00:00 grep postgres
postgres 13893 1 0 03:46 pts/1 00:00:00 /app/postgreSQL/bin/postgres
postgres 13895 13893 0 03:46 ? 00:00:00 postgres: writer process
postgres 13896 13893 0 03:46 ? 00:00:00 postgres: wal writer process
postgres 13897 13893 0 03:46 ? 00:00:00 postgres: autovacuum launcher process
postgres 13898 13893 0 03:46 ? 00:00:00 postgres: archiver process last was 000000010000000000000002.00000020.backup
postgres 13899 13893 0 03:46 ? 00:00:00 postgres: stats collector process
root 13921 13890 0 02:10 pts/1 00:00:00 su - postgres
postgres 13922 13921 0 02:10 pts/1 00:00:00 -bash
root 13983 13951 0 02:11 pts/1 00:00:00 su - postgres
postgres 13984 13983 0 02:11 pts/1 00:00:00 -bash
2、备库进程
[postgres@db2 ~]$ ps -ef|grep postgres
postgres 10855 1 0 04:10 pts/1 00:00:00 /app/postgreSQL/bin/postgres -D /app/postgreSQL/data
postgres 10856 10855 0 04:10 ? 00:00:00 postgres: startup process recovering 000000010000000000000003
postgres 10857 10855 0 04:10 ? 00:00:01 postgres: wal receiver process streaming 0/3000260
postgres 10858 10855 0 04:10 ? 00:00:00 postgres: writer process
postgres 10859 10855 0 04:10 ? 00:00:00 postgres: stats collector process
postgres 10869 13863 0 04:15 pts/1 00:00:00 ps -ef
postgres 10870 13863 0 04:15 pts/1 00:00:00 grep postgres
root 13862 3671 0 02:14 pts/1 00:00:00 su - postgres
postgres 13863 13862 0 02:14 pts/1 00:00:00 -bash
六、测试
1、主库建表插入数据
[postgres@db1 ~]$ /app/postgreSQL/bin/psql
psql (9.1.7)
Type "help" for help.
^
postgres=# create table test (id integer);
CREATE TABLE
^
postgres=# insert into test values (1);
INSERT 0 1
postgres=# select * from test;
id
----
1
(1 row)
2、备库查看数据是否传输。
[postgres@db2 ~]$ /app/postgreSQL/bin/psql
psql (9.1.7)
Type "help" for help.
postgres=# select * from test;
id
----
1
(1 row)
postgres=#
come from :http://blog.csdn.net/hai520ny/article/details/48135987