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Re: Memory leak in 8.0 JDBC driver?

From: Dave Cramer <pg(at)fastcrypt(dot)com>
To: Albe Laurenz <all(at)adv(dot)magwien(dot)gv(dot)at>
Cc: <pgsql-jdbc(at)postgresql(dot)org>
Subject: Re: Memory leak in 8.0 JDBC driver?
Date: 2005-08-11 19:56:37
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-jdbc
Please send us the program so that we can see why, or replicate the  

On 11-Aug-05, at 1:07 PM, Albe Laurenz wrote:

> Before I file a bug, I'd like to ask if the problem is known or if I
> have done anything wrong.
> I am running a database stress test against a PostgreSQL 8.0.3  
> database
> on a Linux machine.
> The test program runs on a Windows 2000 client via JDBC, it starts
> several threads, each
> of which opens a database connection and issues random statements
> against the database
> until the program is interrupted.
> After about 2 hours, the program always dies with an OutOfMemoryError.
> I have tried both JRE 1.4.2_02 and 1.5.0_04 from Sun.
> I would suspect a programming error on my side, except the same  
> program
> on the same machine
> runs for days without problems if I run it against other databases
> (Derby, Firebird, MySql,
> Oracle, MaxDB).
> I have got the JDBC3 driver 8.0 Build 312 from
> and I have also tried downloading and building from source.
> No matter what I do, memory runs out.
> - Should I report this as a bug?
> - I did not want to spam the list with the source of my test program,
> but I'd happily do
>   so if you think it would help.
> - Do you have any hints as to how I could debug the problem myself?  
> Can
> you recommend a
>   memory profiler?
> Thank you,
> Laurenz Albe
> ---------------------------(end of  
> broadcast)---------------------------
> TIP 2: Don't 'kill -9' the postmaster

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Subject: Re: Memory leak in 8.0 JDBC driver?
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Subject: Re: Bug with blobs?

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