Re: [Quickfix-developers] Using .seqnums file to trigger a full resend

[Grant B. <gbi...@co...>]

I would call this a bad practice.  (You're not the first to invent it.)

You're hacking your app's state to basically lie to your counterparty about
missing messages.  If you are asking for a *lot* of history, they'll
probably truncate it.

Have you checked your counterparty's docs to see if they provide another
way to get the historical data that you need?  Surely you aren't the first
person to need historical data from this system.

On Wed, Feb 22, 2017 at 9:29 PM, <daw...@ya...> wrote:

> QuickFIX Documentation: http://www.quickfixengine.org/quickfix/doc/html/
>
>
> Hi Guys,
>
> I'm trying to trigger a resend of all the executor's messages for the day. I
> manually set the incoming seq no in the .seqnums file to 0, then login
> and this triggers a resend request for all messages as soon as my FIX
> engine receives the logon response message - all good so far. All the
> messages are resent and received correctly. The problem is when I log out I
> can see that the .seqnums file does not have the updated incoming seq no
> (it's just set to 1) so when I log in again it triggers another resend
> request.
>
> This problem should be very easy to reproduce. The steps are:-
> 1. Log on
> 2. Send order
> 3. Receive execution
> 4. Log out
> 5. Manually change the .seqnums file from "0000000004 : 0000000004" to
> "0000000004 : 0000000000"
> 6. Log on (resend is triggered)
> 7. Log out.
> 8. Check the seqnums file again and you get "0000000007 : 0000000001" when
> it should be "0000000007 : 0000000006"
>
> Any ideas?
>
> Thanks a lot!
> Dermot
>
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Grant Birchmeier
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