AW: "Connection reset" exceptions

[Stadelmann Josef <jo...@axa-winterthur.ch>]

We have a very funny TCP IP RESET problem too, seen with  Etheral network Traces;  terminating an ongoing FTP connection to a remote NetBeans File System. The HP distributed NetBeans Client then fails to re-establish the connection correctly. But vendor is working on that. However the true cause of this TCP RESET is still same-what unknown. Reading in MS Forums the problem is not within W2K and XP Systems but with VISTA and Windows 7.0 (on Vista with SP2, but not before) Also there is a good chance that the Firewall is triggering this TCP Resets. So it can help as a test to switch the FW off for a test only.

I really wonder about your observations.
Josef.Stadelmann
@axa-winterthur.ch




-----Ursprüngliche Nachricht-----
Von: jitesh dundas [mailto:jiteshbdundas@gmail.com] 
Gesendet: Dienstag, 6. April 2010 06:22
An: Commons Users List
Cc: James Carman
Betreff: Re: "Connection reset" exceptions

Hello,

Maybe one of the reasons below..

It seems that your connection is getting closed on a time-out kind of
functionality...
Also, your connection details might need a recheck .I hope you are
keeping a null check  also as needed.

Hope this helps.

Regards,
jd

On 4/6/10, Bruno Melloni <Br...@chickasaw.net> wrote:
> I am using Spring's JdbcDaoSupport.  The following the code that 'sometimes'
> throws the exception:
>
>       DataSource ds = getJdbcTemplate().getDataSource();
>       SimpleJdbcCall c = new SimpleJdbcCall(ds);
>       c.withProcedureName(SP_NAME_FIND_ROWS);
>       c.returningResultSet("rs", new GlRowMapper());
>       results = c.execute(inParams);
>
> There is no manual opening/closing of the connection.  It is all handled by
> Spring.
>
> -----Original Message-----
> From: jcarman@carmanconsulting.com [mailto:jcarman@carmanconsulting.com] On
> Behalf Of James Carman
> Sent: Monday, April 05, 2010 3:22 PM
> To: Bruno Melloni
> Cc: Commons Users List
> Subject: Re: "Connection reset" exceptions
>
> Are you leaving the connection open while you wait for user input?
>
> On Mon, Apr 5, 2010 at 4:19 PM, Bruno Melloni
> <Br...@chickasaw.net> wrote:
>> Yup!  "Select 1"
>>
>> And the exception only happens every once in a while, not constantly.
>>
>> -----Original Message-----
>> From: jcarman@carmanconsulting.com [mailto:jcarman@carmanconsulting.com]
>> On Behalf Of James Carman
>> Sent: Monday, April 05, 2010 3:17 PM
>> To: Commons Users List
>> Cc: Bruno Melloni
>> Subject: Re: "Connection reset" exceptions
>>
>> you've tried supplying a validation query?
>>
>> On Mon, Apr 5, 2010 at 4:13 PM, Bruno Melloni
>> <Br...@chickasaw.net> wrote:
>>> I started getting these on a long-running command-line application, with
>>> Spring, SQL Server and DBCP for the DataSource.   What I found by
>>> googling seems to point towards:
>>>
>>>
>>> a)      The database times out on idle connections and resets them.  Then
>>> DBCP does not know how to handle it and fails.
>>>
>>> b)      A network failure causes a failure that triggers the error.
>>>
>>> The only solutions I found suggest that there is a bug in DBCP and that I
>>> should switch to the c3p0 DataSource/connection pool.  But I suspect that
>>> there must be a way (perhaps through config settings) to make DBCP not
>>> have these issues.  I would welcome any help that I can get.
>>>
>>> Thank you.
>>>
>>>
>>
>
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