Re: [Quickfix-developers] Session Resetting

[Dale W. <wil...@oc...>]

Hi Jonathan and John,

Steinberg, Jonathan wrote:

> Regarding your comment about the dropping connection being wrong-
>
> I was also suspicious of this. After a logout caused by a incorrect 
> seq num, shouldn't the counter party then accept a logon with the 
> correct seq num?
>
Not according to the standard.  The FIX 4.2 standard says:

    If the incoming message has a sequence number less than expected and the
    PossDupFlag is not set, it indicates a serious error. It is strongly
    recommended that the session
    be terminated and manual intervention be initiated.

Of course if the initiator then reconnects and sends a valid login it 
should work.

Dale

>  
>
> Thanks again for your help
>
>  
>
>  
>
> Jonathan Steinberg
>
>  
>
> ------------------------------------------------------------------------
>
> *From:* qui...@li... 
> [mailto:qui...@li...] *On Behalf Of 
> *John Hensley
> *Sent:* Tuesday, February 28, 2006 7:24 AM
> *To:* qui...@li...
> *Subject:* RE: [Quickfix-developers] Session Resetting
>
>  
>
> Right, but things are OK from there until just before noon. Then for 
> some reason Jonathan's engine is logging out, and it looks like the 
> counterparty is not acknowledging the logout message and resetting 
> sequence numbers. From the socket error logged after the 
> "Disconnecting" message, they're just dropping the connection. I think 
> that's wrong, but the more pressing question is Jonathan's: why's 
> QuickFIX disconnecting and resetting in the first place?
>
>  
>
> ------------------------------------------------------------------------
>
> *From:* Caleb Epstein [mailto:cal...@gm...]
> *Sent:* Monday, February 27, 2006 11:49 PM
> *To:* Steinberg, Jonathan
> *Cc:* John Hensley; qui...@li...
> *Subject:* Re: [Quickfix-developers] Session Resetting
>
> On 2/27/06, *Steinberg, Jonathan* 
> <Jon...@bo... 
> <mailto:Jon...@bo...>> wrote:
>
>     There was also a sequence reset at 5:00, but nothing since that
>     point - here is the complete event log with the sequence reset put
>     back .
>
>     Where else would I look?
>
>     What events would cause a logout/session reset?
>
>
> Hitting the Session's configured StartTime.  From an earlier mail, you 
> have:
>
> [DEFAULT]
>
> HeartBtInt=60
>
> StartTime=10:00:00
>
> EndTime=01:00:00
>
>
>  Which would agree with an 05:00 local time reset of sequence numbers 
> (StartTime is in GMT).
>
> -- 
> Caleb Epstein
> caleb dot epstein at gmail dot com
>


-- 
-----------------------------------------------------
  Dale Wilson, Senior Software Engineer
  Object Computing, Inc. (OCI)
  http://www.ociweb.com/  http://www.theaceorb.com/
----------------------------------------------------