Re: [Quickfix-developers] RE: Intermittent disconnect problem

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 422-6466

Barry,

Is there anything common about the times in which these disconnects occur? 
Is this a high frequency line?  Is it possible you are overloading the 
socket buffer?

--oren

----- Original Message ----- 
From: "Bishop, Barry" <Bar...@gs...>
To: <qui...@li...>
Cc: "Oren Miller" <or...@qu...>; "'Caleb Epstein'" 
<cal...@gm...>
Sent: Tuesday, February 01, 2005 9:37 AM
Subject: RE: [Quickfix-developers] RE: Intermittent disconnect problem

> QuickFIX Documentation: 
> http://www.quickfixengine.org/quickfix/doc/html/index.html
> QuickFIX FAQ: http://www.quickfixengine.org/wikifix/index.php?QuickFixFAQ
> QuickFIX Support: http://www.quickfixengine.org/services.html
>
> Hello all,
>
> This is a follow up on a problem that I was having last year:
>
> quickfix seemingly disconnects from its peer without indicating why.
>
> We've upgraded our system to quickfix 1.9.4 in the hope of getting more
> useful messages, but we don't appear to. I've had a look through the code
> and I can't see quite how this could happen. However it does.
>
> To reiterate, at some random time quickfix disconnects the TCP seesion 
> from
> its peer and logs this message in the event log:
>
> 20050201-13:33:27 : Dropped Connection
>
> This message indicates that quickfix initiated the disconnect, but it does
> not say why. The inbound and outbound messages all look fine and usually
> there has been a few seconds since the last message was sent anyway.
>
> What happens next is the usual reconnect, logon and resend request.
> Everything continues after this. Incidentally, since upgrading from 
> quickfix
> 1.4.0 to 1.9.4 this reconnect/resync is a whole order of magnitude better
> behaved.
>
> However, the mysterious disconnect still occurs.
>
> Has anyone else seen anything like this?
> Can anyone give me any suggestions as to how to track down the problem?
>
> We are running quickfix 1.9.4 on solaris 5.8
> quickfix was built with GCC 3.2.2
> We connect using SocketInitiator
>
> Thanks in advance,
> barry
>
>
>
> Here are some excerpts from our logs:
>
> EVENT LOG
> =========
> 20050201-13:33:27 : Dropped Connection
> 20050201-13:33:29 : Connecting to XXX.XXX.XXX.XXX on port YYYY
> 20050201-13:33:29 : Connection succeeded
> 20050201-13:33:29 : Initiated logon request
> 20050201-13:33:31 : Received logon response
>
>
> INCOMING
> ========
> The last message before disconnecting
> 8=FIX.4.2|9=0183|35=R|115=2126|34=8349|49=CCCCCC|56=BBBBBB|52=20050201-13:32
> :49|122=20050201-13:33:23|116=10101010101010101|144=ZZZZZZZ|131=200502017287
> |146=1|55=BBBBBB|48=773670|22=108|38=100|10=146|
>
> The logon response
> 8=FIX.4.2|9=0067|35=A|34=8351|49=CCCCCC|56=BBBBBB|52=20050201-13:32:54|98=0|
> 108=30|10=004|
>
>
> OUTGOING
> ========
> The last message before disconnecting
> 8=FIX.4.2|9=290|35=S|34=8232|49=BBBBBB|52=20050201-13:33:23.582|56=CCCCCC|12
> 8=2126|129=10101010101010101|145=ZZZZZZZ|22=108|48=773670|55=GSAMFFT|107=des
> cription|117=id|131=txn|132=1|133=2|134=50000|
>
> The logon after the disconnect
> 135=50000|167=OPT|200=200101|201=1|202=1.1|205=20|206=L|231=0.01|10=181|
> 8=FIX.4.2|9=71|35=A|34=8233|49=GSAMFFT|52=20050201-13:33:29.210|56=CATSOS|98
> =0|108=30|10=098|
>
>
> APPLICATION LOG
> ===============
> Tue Feb 1 13:33:23:528 GMT+00:00 2005|Received: 
> quickfix.fix42.QuoteRequest
> Tue Feb 1 13:33:23:528 GMT+00:00 2005|toApp,
> SessionID=FIX.4.2:BBBBBB->CCCCCC, Message=quickfix.fix42.Quote
> Tue Feb 1 13:33:27:117 GMT+00:00 2005|onLogout,
> SessionID=FIX.4.2:BBBBBB->CCCCCC
>
>
>
> -----Original Message-----
> From: Bishop, Barry
> Sent: Tuesday, November 30, 2004 08:11 AM
> To: or...@qu... [mailto:or...@qu...]
> Cc: 'qui...@li...'
> Subject: RE: [Quickfix-developers] Intermittent disconnect problem
>
> Hello Oren,
>
> Thanks for the reply.
>
> Sounds to me like I should try version 1.9.2 or later in  our production
> environment. I have been unable to reproduce the mysterious disconnect in
> our QA system to the same client, but this is not surprising as it is so
> infrequent. I have been simulating it by breaking something else in the
> chain (which would appear as a client disconnect) so this would explain 
> the
> lack of an explanation from qdhÔuickfix.
>
> I will try this over the next few days and report back.
>
> Thanks again,
> barry
>
>
> -----Original Message-----
> From: or...@qu... [mailto:or...@qu...]
> Sent: Monday, November 29, 2004 7:56 PM
> To: Bishop, Barry
> Cc: 'qui...@li...'
> Subject: RE: [Quickfix-developers] Intermittent disconnect problem
>
>
> Barry,
>
> For every disconnect that QuickFIX initiates, there should be a reason
> provided (not with 1.4.0, but with the new releases).  With 1.9.4 
> (available
> now), QuickFIX also displays a "Dropped Connection" message if the
> disconnect is initiated by the peer (1.9.2, does not differentiate).  That
> should help you to verify if it is QuickFIX that is initiating the
> disconnect.  I don't think there are any more cases where QuickFIX 
> initiates
> a disconnect without providing a reason.  If the couterparty drops the
> connection, then unless they provide information in the form of a reject 
> or
> logoff text, there is little QuickFIX can do to determine the cause.  The
> best that we can probably do is report whether the socket was dropped
> gracefully, and therefore intentionally, or if it was an abnormal 
> disconnect
> of some sort.
>
> Is there anything significantly different about this new client?  Does 
> their
> logs reveal anything about the nature of the disconnect?
>
> --oren
>
>> 1) Anyone have any idea what's going on?
>> 2) Is there a way to increase the amount of detail in log messages,
>> especially those to do with disconnection events?
>> 3) What sort of thing would cause quickfix to disconnect without
>> saying why?
>>
>> Thanks in advance,
>> barry
>
>
>
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
> http://productguide.itmanagersjournal.com/
> _______________________________________________
> Quickfix-developers mailing list Qui...@li...
> https://lists.sourceforge.net/lists/listinfo/quickfix-developers
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
> Tool for open source databases. Create drag-&-drop reports. Save time
> by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
> Download a FREE copy at http://www.intelliview.com/go/osdn_nl
> _______________________________________________
> Quickfix-developers mailing list
> Qui...@li...
> https://lists.sourceforge.net/lists/listinfo/quickfix-developers
> 