postgresql-9.3 流复制简单搭建

环境

系统 debian-6.0.4

数据库 postgresql-9.3.0

主库ip:172.16.2.151

备库ip:172.16.2.36

主库上操作

设置 pg_hba.conf，添加以下

host replication postgres 172.16.2.36/32 trust

设置主库 postgresql.conf

wal_level = hot_standby

checkpoint_segments = 16

archive_mode = on

archive_command = 'cp -f %p /var/lib/postgresql/9.3/wal.backup/%f'

max_wal_senders = 3

wal_keep_segments = 16

备库操作

使用 pg_basebackup 生成备库

root@localhost:/var/lib/postgresql/9.3/main# pg_basebackup -D /var/lib/postgresql/9.3/main -Fp -Xs -v -P -h 172.16.2.151 -p 5432 -U postgres

transaction log start point: 0/6C000028 on timeline 1

pg_basebackup: starting background WAL receiver

400749/400749 kB (100%),1/1 tablespace

transaction log end point: 0/6C0000F0

pg_basebackup: waiting for background process to finish streaming ...

pg_basebackup: base backup completed

vi postgresql.conf

设置

hot_standby = on

设置从库 recovery.conf

cp /usr/share/postgresql/9.3/recovery.conf.sample recovery.conf

修改以下参数

standby_mode = on

primary_conninfo = 'host=172.16.2.151 port=5432 user=postgres'

#trigger_file = '/var/lib/postgresql/9.3/main/'

启数据库服务

su postgres

/usr/lib/postgresql/9.3/bin/./pg_ctl -D /var/lib/postgresql/9.3/main start