When I issue a request for historical data on port 9100, it returns the data just fine, ending with the !ENDMSG! message. After the first message I am unable to retrieve anymore historical data, being told !SYNTAX ERROR! or the like. I must re-connect to the server to issue the next command.

Is there something I must put after the first request in order to retrieve more?

Thanks in advance,

Brandon

Hello Brandon, I believe the behavior you are experiencing is a bug specific to IQFeed version 4.0.0.0.

Is this the version you are currently running?

If so, updating to a newer version should resolve the issue.

Steve,

I am not using v4.0.0.0. I am using 4.1.0.0.

Any ideas?

To further clarify, here is what is happening (logged from a telnet session to the history server, port 9100):

> telnet localhost 9100
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
HM,X,1,60;
2006-01-04 17:00:00,49.84,49.84,49.84,49.84,2447300,58800
2006-01-04 16:00:00,50.00,49.57,49.59,49.82,2388500,501500
2006-01-04 15:00:00,49.89,49.40,49.84,49.59,1823500,315200
2006-01-04 14:00:00,49.88,49.71,49.83,49.83,1508100,123000
2006-01-04 13:00:00,50.20,49.69,50.18,49.84,1384900,267000
2006-01-04 12:00:00,50.22,49.58,49.64,50.19,1117900,340700
2006-01-04 11:00:00,49.77,49.43,49.45,49.65,775000,474600
2006-01-04 10:00:00,49.68,49.00,49.44,49.45,297200,292900

!ENDMSG!
HM,MSFT,1,60;
!SYNTAX_ERROR!
HT,X,1;
!SYNTAX_ERROR!

... and so on ...

I have to disconnect and reconnect in order to receive a valid response to my requests.

This is IQFeed v4.1.0.0.

Thanks,

Brandon

I am unable to duplicate this problem.

Is this a copy/paste directly out of your telnet client?
are you using the standard telnet built into the windows command prompt?

my reasoning for asking is that I am noticing your data starts on the line following the command.

when I use telnet (default windows) to troubleshoot feed issues, the data always starts on the same line as the command I entered.


if your telnet client is sending an extra line feed after each ; then you will be getting syntax errors because each command you are sending after the first one will start with that line feed character.

In the last example above, I manually did this in order to recieve a syntax error but as you can see the feed recovered fine for me after the error and I was able to send another command immediatly.

Are you able to use the Example apps for history requests without error?
Edited by DTN_Steve_S on Jan 5, 2006 at 09:46 AM

Steve,

Thanks for the clarification. I did not realize that I need not send the \r\n after each command. I have now corrected my program.

Brandon