| From: | Oliver Jowett <oliver(at)opencloud(dot)com> |
|---|---|
| To: | Agustin CS <agustincs1(at)gmail(dot)com> |
| Cc: | pgsql-jdbc(at)postgresql(dot)org |
| Subject: | Re: Problem executing remote SELECT's (through internet) with JDBC |
| Date: | 2008-02-22 11:46:50 |
| Message-ID: | 47BEB62A.7000009@opencloud.com |
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| Lists: | pgsql-jdbc |
Agustin CS wrote:
> Hello all,
>
> I have a problem invocating SELECT statements using Java JDBC driver
> having a remote communication between PostgreSQL database client-server
> through Internet.
You may want to re-run with logLevel=2 as a connection parameter; then
the driver will log all the network I/O it is doing.
Without a detailed TCP trace I can't be sure but it sounds like perhaps
you have a path MTU discovery problem between the server and client, or
something similar. I suspect that when you turn on driver debugging, you
will see the driver just stop receiving new data from the network at
some point.
(if you like, mail me a tcpdump or wireshark packet capture off-list -
ideally one capture from each end of the connection - and I'll take a look)
-O
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