[This message was posted by Sri Thayaparan of Millennium IT <[email protected]> to the "4.2 Changes" discussion forum at http://fixprotocol.org/discuss/5. You can reply to it on-line at http://fixprotocol.org/discuss/read/48ddf9fc - PLEASE DO NOT REPLY BY MAIL.]
Hi Chen, The response to the resend request depends on how the request has been constructed. There are two sequence numbers, namely, the start and end sequence, that can be included in the resend request. If start sequence is m and end sequence is n, where n > 0 and n > m, the resend is expected only from m to n. In this case, sending the new message as a "poss-dup" (though it doesn;t do any harm) at the end, behaviourally is incorrect. Since it is not part of the requested window, it can never be a "possible duplicate". If your engine selectively refrains from stamping the new message as "poss-duplicate" then it is fine. In this case, there can be situations where n need not necessarily be the last sequence of the session prior to the new message. If the request is from m to 0, where m > 0, you can indeed send the new message also as a "poss-duplicate" at the end of the gap fill. When a request is put this way, it can mean that the fix engine has lost track of messages subsequent to the sequence number m. The latter is a more common approach to gap-fills. Rgds, Thaya. > For example,FIX Engine A is performing resend request with FIX Engine > B,during the process,FIX Engine A receives a message that will be sent > to FIX Engine.Now the status is performing resend request,the new > received message could not be sent to FIX Engine B right now,for it will > bring new resend request. Now my question is that how to deal the new > message? Method 1:store it and wait for the end of performing resend > request,and then send it to FIX Engine B as a "new" message; Method > 2:consider the new received message as the one which need to "resend" to > FIX Engine B,and process the message in the resend request performing. I > don't know which method is "standare",if anyone knows it or has the > other method,please tell me,thank you very much! [You can unsubscribe from this discussion group by sending a message to mailto:[email protected]] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Financial Information eXchange" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/FIX-Protocol?hl=en -~----------~----~----~----~------~----~------~--~---
