第一步：安装pg基本软件
注：在安装pg之前，建议先创建好postgres账户，然后用此账户安装pg软件
1: ./configure –prefix=…(指向你想安装的目录)
2:make & sudo make
3:创建pg数据存贮目录
mkdir ~/data
4:初始化pg
initdb ~/data
第二步：安装pg连接池pgbouncer
安装libevent&c-areq,pgbouncer所需要的库
1:安装libevent
wget
tar -zxvf libevent-2.0.22-stable.tar.gz
cd libevent-2.0.22-stable
./configure && make && make install
//所有用的动态库进系统缓存
echo "/usr/local/lib" >> /etc/ld.so.conf
ldconfig
2:安装c-areq
wget
tar -zxvf c-ares-1.10.0.tar.gz
cd c-ares-1.10.0
./configure && make && make install
ldconfig
3:安装pgbouncer
git clone git://git.postgresql.org/git/pgbouncer.git
cd pgbouncer
git submodule init
git submodule update
./autogen.sh
./configure --prefix=/home/postgres/pgbouncer --with-libevent=/usr/local/lib --with-cares=/usr/local/lib
make && make install
配置pgbouncer
mkdir -p ~/pgbouncer/etc
vim config.ini
[databases]testdb= host=127.0.0.1 port=5432 pool_size=50 dbname=testdb[pgbouncer]pool_mode = transactionlisten_port = 6543listen_addr = 0.0.0.0auth_type = md5auth_file = /home/postgres/pgbouncer/etc/users.txtlogfile = /home/postgres/pgbouncer/log/pgbouncer.logpidfile = /home/postgres/pgbouncer/pgbouncer.pidunix_socket_dir = /home/postgres/pgbouncer/etcadmin_users = pgadminstats_users = pgstatserver_reset_query = DISCARD ALLserver_check_query = select 1server_check_delay = 30max_client_conn = 50000default_pool_size = 20reserve_pool_size = 5dns_max_ttl = 15ignore_startup_parameters = extra_float_digits
vim users.txt
postgres用户密码为postgres
"postgres" "md53175bce1d3201d16594cebf9d7eb3f9d""pgadmin" "pgadmin""pgstat" "md510a90e7529bc649302c9bfabefd51b93"
第三步：安装本地告诉缓存pgfincore(请自行去网上下载)
下载好文件后，解压
make&&make install 即可
至此，pg服务安装完成，而且还有一个相当好的性能哦！