Re: [Quickfixj-users] Unexpected "MsgSeqNum too low, expecting X but received Y"

[Christoph J. <chr...@ma...>]

Who owns the other side? Is it also a QFJ engine?
BTW your order in your mail is wrong. Based on field 52/SendingTime the ExecReport with seqnum 646 
is resent first and then the SequenceReset is sent out. That is also the order I would expect.
 From briefly looking at it it looks as if the opposing side does not consider the PossDup flag that 
is set on the resent message with seqnum 646 and does incorrectly report it as too low.

Cheers,
Chris.


On 25.03.21 09:41, charles meng wrote:
> QuickFIX/J Documentation: http://www.quickfixj.org/documentation/
> QuickFIX/J Support: http://www.quickfixj.org/support/
>
>
>
> Hi guys:
>
> I encountered a very strange problem. I just want to simulate a scenario where the sequence number 
> exceeds the expected sequence number to trigger resend, but every time I receive an unexpected 
> logout message. The detailed information is as follows:
>
> My service is in the role of Initiatator.
> Version:quickfix:2.1.1, FIX:FIX50SP2
>
> Initiator senderSeqNo:640
>
> 1, Initiator sends a request with a higher sequence number than expected: 
> 8=FIXT.1.1^9=331^35=8^34=646^49=test1^52=20210325-08:23:21.810^56=TEST^1=108331^14=0^15=USD^17=1115569_1615646513221_927^22=971^37=1115569^38=1^39=0^40=4^44=290.2^48=BCH/USD^54=1^55=BCHUSD^59=1^60=20210313-14:41:53.099^150=0^151=1^167=CRYPTSPOT^423=3^460=15^581=1^965=1^1084=4^1138=0^453=2^448=MATX^447=G^452=22^448=MEHSAG1601PIND90805^447=D^452=3^10=219^
>
> 2, Initiator receives the resend 
> request:8=FIXT.1.1^9=73^35=2^34=453^49=TEST^52=20210325-08:23:21.814^56=test1^369=640^7=641^16=0^10=029^
>
> 3, Initiator sends a sequenceReset 
> request:8=FIXT.1.1^9=98^35=4^34=641^43=Y^49=test1^52=20210325-08:23:21.832^56=TEST^122=20210325-08:23:21.831^36=646^123=Y^10=053^
>
> 4, The Initiator resends the first message (because this is a simulated scenario that exceeds the 
> expected seqNum, so there is no other data between 641 and 
> 646):8=FIXT.1.1^9=362^35=8^34=646^43=Y^49=test1^52=20210325-08:23:21.830^56=TEST^122=20210325-08:23:21.810^1=108331^14=0^15=USD^17=1115569_1615646513221_927^22=971^37=1115569^38=1^39=0^40=4^44=290.2^48=BCH/USD^54=1^55=BCHUSD^59=1^60=20210313-14:41:53.099^150=0^151=1^167=CRYPTSPOT^423=3^460=15^581=1^965=1^1084=4^1138=0^453=2^448=MATX^447=G^452=22^448=MEHSAG1601PIND90805^447=D^452=3^10=217^
>
> 4, Initiator receives Logout 
> message:8=FIXT.1.1^9=121^35=5^34=454^49=TEST^52=20210325-08:23:21.837^56=test^369=646^1128=9^58=MsgSeqNum 
> too low, expecting 647 but received 646^10=248^
>
>
> Thanks in advance!
>
>
>
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-- 
Christoph John
Software Engineering
T +49 241 557080-28
chr...@ma...

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