[Quickfix-developers] Log files and startup question

[Radhika S. <Rad...@Pi...>]

Hi,
I am a relative FIX/QuickFix newbie, so pl. bear with me.
I am working on a fix client.
I am having session re-connect problems.
When Quickfix starts up, how does it decide which sequence number to
send a message to the server with?
My question is: does it look at the log files?
In the quickfix mail archives I read that the quickfix engine uses the
filestore, to get the last sequence number used?

The way my QF engine is set the session object is created on a per
session basis. I logout issuing the session.logout() command and login
with session.login() But attempts to re-login are creating sequence
number mismatchs, which I cannot understand.

From looking at the logs, the Server is definitely sending 1.
The client is starting at 1, but sends about 2 logon messages before the
server acknowledges it, by which time the sequence number it is
expecting is > 1, whereas the server is sending back only 1.
In total there are 5 logon messages, before a request for resend occurs.

What I am hoping is someone can explain to me how the communication
happens between the client and the server.
Whether the log files are controlling what the next sequence number is
(in which case I should be able to remove all log files before
initiating another session) and it should work.

both resetOnLogout and resetOnDisconnec are set to Y.

Any ideas, how I can go about this would be helpful.

Thanks,
Radhika


18 17:14:43.728 0828 0027 {594:MainForm::cmdLogon_Click} Session
selected is: AAAA
18 17:14:44.384 0828 0027 {MainForm::CacheMessage} Msg is:
8=3DFIX.4.09=3D5935=3DA34=3D149=3DAAAA52=3D20041227-22:14:4456=3DBBBBB=3D=
0108=3D3010=3D119
18 17:14:44.384 0828 0027 {MainForm::CacheMessage} Msg is:
8=3DFIX.4.09=3D5935=3DA34=3D149=3DAAAA52=3D20041227-22:14:4556=3DAAAA=3D0=
108=3D3010=3D120
04 17:14:44.400 0828 0050 {MainForm::OnSessionLogon} Session Logged On:
AAAA
18 17:14:44.665 0828 0027 {MainForm::CacheMessage} Msg is:
8=3DFIX.4.09=3D5935=3DA34=3D149=3DAAAA52=3D20041227-22:14:4456=3DBBBB98=3D=
0108=3D3010=3D119
04 17:14:44.665 0828 0066 {MainForm::OnSessionLogout} NOW!!!!!!! Session
Logged Out: AAAA
18 17:14:49.665 0828 0027 {MainForm::CacheMessage} Msg is:
8=3DFIX.4.09=3D5935=3DA34=3D249=3DAAAA52=3D20041227-22:14:4956=3DBBBB98=3D=
0108=3D3010=3D125
18 17:14:49.681 0828 0027 {MainForm::CacheMessage} Msg is:
8=3DFIX.4.09=3D5935=3DA34=3D149=3DAAAA52=3D20041227-22:14:5156=3DAAAA98=3D=
0108=3D3010=3D117
04 17:14:49.681 0828 0066 {MainForm::OnSessionLogon} Session Logged On:
AAAA

event logs:

20041227-22:35:13 : Initiated logon request
20041227-22:35:13 : Initiated logon request
20041227-22:35:13 : MsgSeqNum too low, expecting 4 but received 1
20041227-22:35:13 : Disconnecting
20041227-22:35:13 : Dropped Connection
20041227-22:35:14 : Connecting to qablks02 on port 9100
20041227-22:35:14 : Connection succeeded
20041227-22:35:14 : Initiated logon request
20041227-22:35:14 : MsgSeqNum too low, expecting 4 but received 1
20041227-22:35:14 : Disconnecting


Radhika Sambamurti
Pipeline Trading Systems
Rad...@pi...
212-370-8343