Re: Mixed up protocol packets in server response?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Michal Politowski <mpol+pg(at)meep(dot)pl>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Mixed up protocol packets in server response?
Date: 2011-06-03 13:53:59
Message-ID: 25344.1307109239@sss.pgh.pa.us
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Michal Politowski <mpol+pg(at)meep(dot)pl> writes:
> Thinking aloud: If this is, as it is to be suspected, an application-side problem,
> there is at first sight not much space in the application where it could hide. The data is
> mixed up in a driver buffer, two method calls from the standard library
> socket code. There is the VisibleBufferedInputStream there. Could it do
> something like this? Maybe if the connection was erroneously used from two threads
> concurrently? The connections are pooled via commons-dbcp BasicDataSource
> and queries are executed via Spring JdbcTemplate within Spring-configured
> transaction. No passing connections by hand anywhere, everything should be
> nicely thread-bound. Still, if not here, where could it go wrong?

You'd probably be better off asking these questions in pgsql-jdbc ...
a lot of us here don't even speak Java.

regards, tom lane

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