{{Quickfixn}} Checksum problem

[Grant Birchmeier]

Yes, if the target is from someone else, then you have to use the message
they give you, however insane.

Since this is a real counterparty, it's something we should be ready to
handle, so I will log a bug for this issue so it doesn't get lost.


On Tue, Aug 21, 2012 at 10:59 AM, Christophe Lucas
<Christophe.Lucas at ae.be>wrote:

>  The target system is not our implementation. This security list  is our
> only possibility to retrieve programmatically  the securities we can trade
> on their platform as we would like to synchronize each night their list
> with ours. I cannot see a possibility to break this message up. The
> security list message has got a tag ‘393 TotNoRelatedSym’ to facilitate the
> breaking up of long messages, but it seems that they are not using this. I
> will ask if they are able to make this possible.
>
>
>
> So far I didn’t encounter problems with smaller SecurityList messages.
>
>
>
> Meanwhile I will recompile quickfixn without the validate() line and test
> with this assembly.
>
>
>
> Kind regards,
>
> Christophe
>
>
>
>
>
> *From:* Grant Birchmeier [mailto:gbirchmeier at connamara.com]
> *Sent:* dinsdag 21 augustus 2012 17:15
> *To:* Christophe Lucas
> *Cc:* Mailing list for QuickFIX/n
> *Subject:* Re: [SPAM] Re: {{Quickfixn}} Checksum problem
>
>
>
> Wow, that is a very long message.  I wonder if the excessive length is
> exposing a bug in QF/n.  I'm afraid I probably won't be able to find time
> to dig into this very soon due to my work responsibilities.
>
>
>
> Do you have trouble with smaller SecurityList messages?
>
>
>
> If the Target system ("DEMO-PRAG3") is your implementation, I might
> suggest that you break this message up into smaller messages, instead of a
> single 569K message.  If it's not your implementation, then that's not an
> option (and I kind of wonder what they're thinking).
>
>
>
> -Grant
>
>
>
>
>
> On Tue, Aug 21, 2012 at 9:55 AM, Christophe Lucas <Christophe.Lucas at ae.be>
> wrote:
>
> Thank you for your fast response.
>
> The exception it gives is : "Invalid message: Expected CheckSum=207,
> Received CheckSum=123"
>
> The message itself can be found in attachment.
>
>
>
> Kind regards,
>
> Christophe
>
>
>
> *From:* quickfixn-bounces at lists.quickfixn.com [mailto:
> quickfixn-bounces at lists.quickfixn.com] *On Behalf Of *Grant Birchmeier
> *Sent:* dinsdag 21 augustus 2012 16:35
> *To:* Mailing list for QuickFIX/n
> *Subject:* [SPAM] Re: {{Quickfixn}} Checksum problem
> *Importance:* Low
>
>
>
> It's commented out because the disabling of this feature is not
> implemented yet.
>
>
>
> Can you provide your erroneous message and the error it gives?  That will
> help us log a bug and fix it.
>
>
>
>
>
> On Tue, Aug 21, 2012 at 9:19 AM, Christophe Lucas <Christophe.Lucas at ae.be>
> wrote:
>
> Dear all,
>
>
>
> I have got a problem with the checksum validation in a FIX5.0SP2
> application when I receive a  SecurityList message.
>
> The calculated checksum is not equal with the given checksum in the
> message.
>
>
>
> As a quick fix, I was hoping to use the option
> ‘ValidateLengthAndChecksum=N’ , but I see that this option has been put
> into comment:
>
>
>
> /** FIXME - implement optional settings
>
>             if (settings.Has(SessionSettings.VALIDATE_LENGTH_AND_CHECKSUM))
>
>
>                 session.SetValidateLengthAndChecksum(settings.GetBool(SessionSettings.VALIDATE_LENGTH_AND_CHECKSUM));
>
> */
>
>
>
>
>
> Can someone tell me if this is a known issue and if it is possible to
> comment it out again? Or are there other solutions?
>
>
>
> Kind regards,
>
> Christophe
>
>
>
>
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>
>
>
>
> --
>
> Grant Birchmeier
>
> *Connamara Systems, LLC*
>
> *Made-To-Measure Trading Solutions.*
>
> Exactly what you need. No more. No less.
>
> http://connamara.com
>
>
>
>
>
>
> --
>
> Grant Birchmeier
>
> *Connamara Systems, LLC*
>
> *Made-To-Measure Trading Solutions.*
>
> Exactly what you need. No more. No less.
>
> http://connamara.com
>
>
>



-- 
Grant Birchmeier
*Connamara Systems, LLC*
*Made-To-Measure Trading Solutions.*
Exactly what you need. No more. No less.*
*
http://connamara.com
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