Обсуждение: "Connection refused"
Hi, I am very new to PostgreSQL's jdbc. After following the installation and configure instructure of http://www.fankhausers.com/postgresql/jdbc/, I get an error message "***Exception: Connection refuled. Check that the hotname and port is correct, and that the postmaster is running with the -i flag, which enables TCP/IP networking" when I run the test program. What I am missed here? Thanks in advance. v.
Vernon, Presuming you are running on linux do a netstat -nlp | grep 5432 and you should find a listening connection on port 5432, if you don't then you have to start postgres with the -I flag, or set the option tcpip_socket in the postgresql.conf file to true and restart postgres. Dave -----Original Message----- From: pgsql-jdbc-owner@postgresql.org [mailto:pgsql-jdbc-owner@postgresql.org] On Behalf Of Vernon Wu Sent: Thursday, February 21, 2002 5:47 AM To: pgsql-jdbc@postgresql.org Subject: [JDBC] "Connection refused" Hi, I am very new to PostgreSQL's jdbc. After following the installation and configure instructure of http://www.fankhausers.com/postgresql/jdbc/, I get an error message "***Exception: Connection refuled. Check that the hotname and port is correct, and that the postmaster is running with the -i flag, which enables TCP/IP networking" when I run the test program. What I am missed here? Thanks in advance. v. ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to majordomo@postgresql.org so that your message can get through to the mailing list cleanly
You have to configure the postmaster with the -i flag, which enables TCP/IP connections. It's not a problem of jdbc. On Thu, 21 Feb 2002 02:46:30 -0800 Vernon Wu <vernonw@gatewaytech.com> wrote: > Hi, > > I am very new to PostgreSQL's jdbc. After following the installation and configure instructure of > http://www.fankhausers.com/postgresql/jdbc/, I get an error message "***Exception: Connection refuled. Check that > the hotname and port is correct, and that the postmaster is running with the -i flag, which enables TCP/IP networking" > when I run the test program. What I am missed here? > > Thanks in advance. > > v. > > > > ---------------------------(end of broadcast)--------------------------- > TIP 3: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly >
Hi Vernon, perhaps you must enable the client in postgres. Go into the file pg_hba.conf There should be a lines enabled like this: local all trust host all 127.0.0.1 255.255.255.255 trust This file configures, who can use the running postgres server. If you need another ip add it like the example. Oliver -----Original Message----- From: pgsql-jdbc-owner@postgresql.org [mailto:pgsql-jdbc-owner@postgresql.org]On Behalf Of Dave Cramer Sent: Friday, February 22, 2002 4:26 AM To: vernonw@gatewaytech.com; pgsql-jdbc@postgresql.org Subject: Re: [JDBC] "Connection refused" Vernon, Presuming you are running on linux do a netstat -nlp | grep 5432 and you should find a listening connection on port 5432, if you don't then you have to start postgres with the -I flag, or set the option tcpip_socket in the postgresql.conf file to true and restart postgres. Dave -----Original Message----- From: pgsql-jdbc-owner@postgresql.org [mailto:pgsql-jdbc-owner@postgresql.org] On Behalf Of Vernon Wu Sent: Thursday, February 21, 2002 5:47 AM To: pgsql-jdbc@postgresql.org Subject: [JDBC] "Connection refused" Hi, I am very new to PostgreSQL's jdbc. After following the installation and configure instructure of http://www.fankhausers.com/postgresql/jdbc/, I get an error message "***Exception: Connection refuled. Check that the hotname and port is correct, and that the postmaster is running with the -i flag, which enables TCP/IP networking" when I run the test program. What I am missed here? Thanks in advance. v. ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to majordomo@postgresql.org so that your message can get through to the mailing list cleanly ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html
Vernon- Take a second look at the two tasks in this section of the FAQ: http://www.fankhausers.com/postgresql/jdbc/#tcpip The "connection refused" message usually means one of them hasn't been done. Note that they are required even if you are connecting to the machine you are on. -Nick > -----Original Message----- > From: pgsql-jdbc-owner@postgresql.org > [mailto:pgsql-jdbc-owner@postgresql.org]On Behalf Of Vernon Wu > Sent: Thursday, February 21, 2002 5:46 AM > To: pgsql-jdbc@postgresql.org > Subject: [JDBC] "Connection refused" > > > Hi, > > I am very new to PostgreSQL's jdbc. After following the > installation and configure instructure of > http://www.fankhausers.com/postgresql/jdbc/, I get an error > message "***Exception: Connection refuled. Check that > the hotname and port is correct, and that the postmaster is > running with the -i flag, which enables TCP/IP networking" > when I run the test program. What I am missed here? > > Thanks in advance. > > v. > > > > ---------------------------(end of broadcast)--------------------------- > TIP 3: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly >