之前介绍过这个连接池,今天这里只是记录安装配置
下载地址:http://pgfoundry.org/frs/?group_id=1000258&release_id=1981
1.安装步骤:
$ ./configure --prefix=/usr/local --with-libevent=libevent-prefix
$ make
$ make install
如果没有libevent,那么http://monkey.org/~provos/libevent/下载
Libevent安装:
$ ./configure && make
$ make verify
# make install 注意安装时用root用户
tail -1f config.log
configure: exit 0 0说明安装成功,1为失败
2.创建配置文件:
Mkdir –p $PGDATA/pgbouncer
postgres@readerlogdb-> more config.ini
[databases]
testdb = host=127.0.0.1 port=1931 dbname=testdb user=testuser password=testuser
[pgbouncer]
listen_port = 1688
listen_addr = 127.0.0.1
auth_type = md5
auth_file = /opt/pgdata/pg_root/pgbouncer/user.txt
logfile = /opt/pgdata/pg_root/pgbouncer/pgbouncer.log
pidfile = /opt/pgdata/pg_root/pgbouncer/pgbouncer.pid
pool_mode = Transaction
admin_users = pgbouncer_admin
stats_users = pgbouncer_guest
3.添加用户信息
more user.txt
"testuser" "testuser"
"pgbouncer_admin" "pgbouncer_admin"
4.启动pgbouncer
pgbouncer -d /opt/pgdata/pg_root/pgbouncer/config.ini
5.测试连接
psql -h 127.0.0.1 -p 1688 -d testdb -U testuser #testuser用户连接testdb
psql -h 127.0.0.1 -p 1688 -d pgbouncer -U pgbouncer_admin #以pgbouncer管理用户进入本身的数据库pgbouncer
6.查看相关信息
pgbouncer=# show help;
NOTICE: Console usage
DETAIL:
SHOW HELP|CONFIG|DATABASES|POOLS|CLIENTS|SERVERS|VERSION
SHOW STATS|FDS|SOCKETS|ACTIVE_SOCKETS|LISTS|MEM
SHOW DNS_HOSTS|DNS_ZONES
SET key = arg
RELOAD
PAUSE [<db>]
RESUME [<db>]
KILL <db>
SUSPEND
SHUTDOWN
Show config; #查看相关配置
Show stats;
Show lists;#查看连接相关信息,如,数据库个数,空闲连接数等等
Show pools;#查看池中连接信息
Show databases;#查看相关数据库
Show clients; #查看连接数
如果修改了配置文件,那么需要reload重新加载
pgbouncer=# reload;
RELOAD
连接方式有三种,之前介绍过,种类不再详述,以上 一些参数的介绍,在源安装包里doc目录下有详细说明和举例。