Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)




"With HUGE volume on AAPL and RIMM for 2 days, everyone in a trading room was whining about freezes, crashes and lag with *******, RealTick, TS and Cyber. InvestorRT with IQFeed was rock solid. I mean SOLID!" - Comment from Public IRC Chat
"I use IQ Feed, Great stuff as far as data analysis information, storage and retrieval is concerned." - Comment from Public Forum
"I've been using IQFeed 4 in a multi-threaded situation for the last week or two on 2600 symbols or so with 100 simultaneous daily charts, and I have had 100% responsiveness." - Comment from Scott
"I had always used ******* but for the past 2 weeks have been trying DTN IQFeed. Customer support has been extraordinary. They call just to make sure your problem hasn't recurred." - Comment from Public Forum
"And by the way, have to say this. I love the IQFeed software. It's rock solid and it has a really nice API." - Comment from Thomas via RT Chat
"You have an excellent product !!!!!!" - Comment from Arely
"Everything is working amazing now. I'm already impressed with the true-tick feed of IQFeed and it's ability to support my 480 symbol layout." - Comment from Tyler via Email
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"I used to have *******, but they are way more money for the same thing. I have had no probs with data from DTN since switching over." - Comment from Public Forum Post
"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles
Home  Search  Register  Login  Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather
Follow DTNMarkets on Twitter
DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter
»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support »TCP/IP Historical data issues
Author Topic: TCP/IP Historical data issues (6 messages, Page 1 of 1)

bigfoot
-Interested User-
Posts: 11
Joined: May 12, 2004


Posted: Sep 24, 2007 12:39 AM          Msg. 1 of 6
I am having issues requesting historical data. I have already have socket a connection to get tick data and that works fine. I created a second socket to request historical data, however I have tried various formats to get historical tick data to no avail. I have tried
HT,GROW,2;
HT,[GROW],[2];
[HT,GROW,2];

I have also tried by getting the second socket to initialize the feed and tcp/ip before requesting historical data and tried the three combinations however no luck.

Interesting that the error messages are not consisted for the same format.

I have attached a screenshot of the IQFeed log. The left side (green background) is from the first scenario and the right side (yellowish background) is the second scenario.

Anything I am doing wrong or is there something not mentioned in the manuals that I need to do.



File Attached: iqfeed_error.png (downloaded 1534 times)

bigfoot
-Interested User-
Posts: 11
Joined: May 12, 2004


Posted: Sep 24, 2007 12:41 AM          Msg. 2 of 6
The second socket is connecting to the lookup port 9100.

DTN_Steve_S
-DTN Guru-
Posts: 2093
Joined: Nov 21, 2005


Posted: Sep 24, 2007 09:33 AM          Msg. 3 of 6
The history server requests need to be in calendar days (not trading days). This means that requesting 2 days on monday morning (before market open) for most contracts will not return any results (since you are requesting monday and sunday's data).

bigfoot
-Interested User-
Posts: 11
Joined: May 12, 2004


Posted: Sep 24, 2007 11:13 AM          Msg. 4 of 6
Thanks. Did not realize it was calender days. One more question though. DTN website states on e can get historical tick data for 8 calender days. However I am only getting data for 6 days.

I requested tick data for GROW specifying 10 days and the I only got data from 2007-09-19 08:07:00 to 2007-09-24 am. Which is 6 days.
Edited by bigfoot on Sep 24, 2007 at 11:14 AM

DTN_Steve_S
-DTN Guru-
Posts: 2093
Joined: Nov 21, 2005


Posted: Sep 24, 2007 12:25 PM          Msg. 5 of 6
This is a side effect from the new server code that was rolled out this weekend. There are some hardware limitations that are preventing us from servicing the entire 8 days currently. Our server team is currently working on a software solution to this issue.

bigfoot
-Interested User-
Posts: 11
Joined: May 12, 2004


Posted: Sep 25, 2007 08:56 AM          Msg. 6 of 6
Thanks
 

 

Time: Tue May 7, 2024 8:31 PM CFBB v1.2.0 12 ms.
© AderSoftware 2002-2003