Re: Connection Problem - Mailing list pgsql-jdbc

Can you successfully connect to postgres using:
psql -h localhost
- or -
psql -h 127.0.0.1

Rob Stone <robstone@mira.net> wrote:


Hi Radek,

Output from those commands attached.

I always completely shutdown my laptop and pull the plug. So, it is
doing a complete cold boot each time.

When I try connecting to the database with ExecuteQuery, the same error
is returned for both "localhost" and 127.0.0.1, when entering those
values as the "host" on the connection dialogue.

Via a browser, if I access http://localhost it returns the "It Work's!"
output from apache.

Thanks to everybody for your help.

Cheers,
Rob



On Thu, 2010-12-09 at 15:43 -0500, Radosław Smogura wrote:
> Hi,
>
> Check with netstat -atnp (it shows the process associated with port),
> but psql should be there.
>
> Do route -n to see routing traces, execute ifconfig next.
>
> But this can be kernel driver problem. Do you "shut down" laptop by
> closing it, I mean do you put it in sleep mode? Maybe you need to
> restart network interfaces instead.
>
> On my PC when I put it on sleep mode, SATA controller doesn't wakes up.
>
> Kind regards,
> Radek Smogura
> > Rob,
> >
> > Have you tried 127.0.0.1 instead of localhost ? It's not that it isn't
> > listening, the problem is there is no route to localhost which seems
> > strange on it's own.
> >
> > Dave
> >
> > On Thu, Dec 9, 2010 at 8:18 AM, Rob Stone <robstone@mira.net> wrote:
> >> Hi Oliver,
> >>
> >> Thanks for the reply.
> >>
> >> Output from netstat shows port 5432 as being listened. Don't know what
> >> to try next.
> >>
> >> Sometimes when I shut down my laptop the "stop" messages are displayed.
> >> I noticed last night that pg_ctl could not find the postmaster.pid file,
> >> even though PGHOST and PGDATA variables are set. I'm starting it with
> >> the -i and -D options with -D pointing explicitly to the PGDATA path
> >> using the full path name. Could not finding a postmaster.pid file be
> >> linked in any way with my problem??
> >>
> >>
> >> Cheers,
> >> Rob
> >>
> >> rob@roblaptop:~> netstat -ln --tcp
> >> Active Internet connections (only servers)
> >> Proto Recv-Q Send-Q Local Address           Foreign Address
> >> State
> >> tcp        0      0 0.0.0.0:22              0.0.0.0:*
> >> LISTEN
> >> tcp        0      0 127.0.0.1:631           0.0.0.0:*
> >> LISTEN
> >> tcp        0      0 0.0.0.0:5432            0.0.0.0:*
> >> LISTEN
> >> tcp        0      0 0.0.0.0:58112           0.0.0.0:*
> >> LISTEN
> >> tcp        0      0 0.0.0.0:2049            0.0.0.0:*
> >> LISTEN
> >> tcp        0      0 0.0.0.0:44739           0.0.0.0:*
> >> LISTEN
> >> tcp        0      0 0.0.0.0:6566            0.0.0.0:*
> >> LISTEN
> >> tcp        0      0 0.0.0.0:60135           0.0.0.0:*
> >> LISTEN
> >> tcp        0      0 0.0.0.0:111             0.0.0.0:*
> >> LISTEN
> >> tcp6       0      0 :::22                   :::*
> >> LISTEN
> >> tcp6       0      0 ::1:631                 :::*
> >> LISTEN
> >> tcp6       0      0 :::5432                 :::*
> >> LISTEN
> >> tcp6       0      0 :::6566                 :::*
> >> LISTEN
> >> tcp6       0      0 :::80                   :::*
> >> LISTEN
> >> rob@roblaptop:~>
> >>
> >>
> >>
> >>
> >> On Wed, 2010-12-08 at 08:52 +1300, Oliver Jowett wrote:
> >>> On 08/12/10 02:29, Rob Stone wrote:
> >>>
> >>> > Wrote a mickey mouse java class (testdbconn) to see if I could access
> >>> > the database and read data from a table that has two rows. See attached.
> >>> > When it runs it displays the same SQL error code as ExecuteQuery --
> >>> > 08001 -- which is the "can't connect error".
> >>>
> >>> You have a network configuration problem of some sort:
> >>>
> >>> > Caused by: java.net.SocketException: Network is unreachable
> >>>
> >>> (This isn't "connection refused", it's "I have no configured route to
> >>> that address")
> >>>
> >>> Oliver
> >>
> >>
> >>
> >> --
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> >>
> >
> > --
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> >
>
>