Re: [Quickfixj-users] Daily sequence reset doubt

[Felipe W. <fel...@gm...>]

Hello Chris,

Thanks for the complete answer and sharing your experience.

I'll use the option you recommended, that is to use TimeZone, StartTime and
EndTime.

As my counterparty also "recommends that customers remain disconnected
during the weekends, unless when participating in scheduled mock tests.",
I'll also use the Weekdays parameter.

About my counterparty sequence reset, their documentation says:

*All FIX session schedules for Entry Point are activated on a daily basis
and, at the end of the session, the connection is terminated by the Border
Gateway and the sequence number is reset. This means that at the beginning
of every new session, the expected sequence number is 1. Note that there
will be no logout message when the session is terminated. Instead, users
will detect a hard disconnection.*

Cheers,
Felipe Windmoller

Em seg., 12 de abr. de 2021 às 20:22, Christoph John <
chr...@ma...> escreveu:

> BTW, your counterparty also needs to reset at the correct time so I guess
> they would also like to know when you actually reset. Otherwise "funny"
> things can happen.
> We had a counterparty which did not disconnect the session when their
> EndTime was reached but reset at the next intra-day disconnection. So most
> of the time everything worked but when there was a disconnection during the
> day (e.g. network problems) they started of at seqnum 1 mid-day which of
> course lead to problems since the sessions were constantly disconnecting
> due to too low seqnums...
>
> Cheers,
> Chris.
>
> On 13.04.21 01:16, Christoph John wrote:
>
> Hi,
>
> QFJ will reset the sequence number on the start of the session when it
> finds that the session storage is from an old session. It does determine
> this by using the StartTime and EndTime. See
> DefaultSessionSchedule.isSameSession().
> So I can only encourage you to unify the TimeZone, StartTime, EndTime with
> your counterparty because that will do everything automatically for you.
> From my experience with the counterparties I've worked with this is no
> problem and some of them use a different time zone than our servers are in.
>
> If you still want to manage all that by yourself (not recommended), you
> could set NonStopSession=Y which will never reset the session
> automatically. You'll then need to have some kind of persistent flag in
> your application to determine if you already reset your session that day.
>
> Cheers,
> Chris.
>
>
> On 13.04.21 01:03, Felipe Windmoller wrote:
>
> QuickFIX/J Documentation: http://www.quickfixj.org/documentation/
> QuickFIX/J Support: http://www.quickfixj.org/support/
>
>
> Hello everybody!
>
> I must connect to a session on a daily basis and at the beginning of every
> new session, I must start with sequence number 1.
>
> I'm afraid of using the StartTime and EndTime parameters because there can
> be issues between the time zone configuration of my server and the
> acceptor. So, I intend to do a manual schedule to logon and logout.
>
> As my application can be restarted during the day by the server, I can't
> use the *ResetOnLogon* or the other *ResetOn* parameters.
>
> I tested QuickFIX/J and it looks like that every time that I start a
> session and the date of the session storage is older than the current day
> (in other words, the first logon of the day), QuickFIX/J is automatically
> setting the sequence number to 1.
>
> Did I understand that correctly? Will QuickFIX/J always begin the first
> daily session with the sequence number 1?
>
> Thanks a lot,
> Felipe Henrique Gross Windmoller
>
>
>
>
>
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> --
> Christoph John
> Software Engineering
> T +49 241 557...@ma...
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> --
> Christoph John
> Software Engineering
> T +49 241 557...@ma...
>
> MACD GmbH
> Oppenhoffallee 103
> 52066 Aachen, Germanywww.macd.com
>
> Amtsgericht Aachen: HRB 8151
> Ust.-Id: DE 813021663
> Geschäftsführer: George Macdonald
>
>