[Quickfix-developers] (Unexpected Logout) PossDupFlag, Duplicate Messages

[Patrick F. <pat...@ch...>]

Oren,
            On the acceptor side we occasionally notice something like:
 
<20040809-17:46:16, FIX.4.4:TW->CLIENT2, incoming>
 
(8=FIX.4.49=13535=S34=634649=CLIENT252=20040809-17:46:16.72856=TW55=245:3941
:111052:call117=0132=62.000000000133=63.000000000134=300135=30010=015)
 
<20040809-17:46:16, FIX.4.4:TW->CLIENT2, incoming>
 
(8=FIX.4.49=13535=S34=634649=CLIENT252=20040809-17:46:16.74456=TW55=245:3941
:111051:call117=0132=83.000000000133=84.000000000134=300135=30010=018)
 
<20040809-17:46:16, FIX.4.4:TW->CLIENT2, event>
  (MsgSeqNum too low RECEIVED: 6346 EXPECTED: 6347 PosDup: N)
<20040809-17:46:16, FIX.4.4:TW->CLIENT2, event>
  (Sequence number too low and PossDupFlag is false)
<20040809-17:46:16, FIX.4.4:TW->CLIENT2, event>
  (Disconnecting)
<20040809-17:46:16, FIX.4.4:TW->CLIENT2, incoming>
 
(8=FIX.4.49=13335=S34=634749=CLIENT252=20040809-17:46:16.74456=TW55=0:0:3123
4:strategy117=0132=70.000000000133=71.500000000134=200135=20010=171)
<20040809-17:46:16, FIX.4.4:TW->CLIENT2, event>
  (Logon state is not valid for message)
<20040809-17:46:16, FIX.4.4:TW->CLIENT2, incoming>
 
(8=FIX.4.49=13335=S34=634849=CLIENT252=20040809-17:46:16.74456=TW55=0:0:2925
2:strategy117=0132=17.500000000133=19.000000000134=200135=20010=182)
<20040809-17:46:16, FIX.4.4:TW->CLIENT2, event>
  (Logon state is not valid for message)
<20040809-17:46:21, FIX.4.4:TW->CLIENT2, incoming>
 
(8=FIX.4.49=6835=A34=149=CLIENT252=20040809-17:46:21.87056=TW98=0108=6000001
0=110)
<20040809-17:46:21, FIX.4.4:TW->CLIENT2, event>
  (Received logon request)  (Disconnecting)
 
One thing I notice is that a message appears to have been sent twice.  The
second message does not have a PossDupFlag and the values in fields 132
and133 are switched.  That seems very strange.  Do you have any idea why
that would be?   We are using a multithreaded acceptor and initiator. 
 
 
Patrick