DTN IQFeed, DTN.IQ, DTN ProphetX Support Forums

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)

"Thank God for your Data Feed as the only Zippers I see are on my pants (LOL), and no more 200 pip spikes to mess up charts." - Comment from Spiro via Email

"Very impressed with the quality of your feed - ******* is a real donkey in comparison." - Comment from A.C. via Email

"Its working FABULOUSLY for me!! Holy cow...there has been so much I've been missing lately, and with this feed and Linnsoft software...I'm in the game now." - Comment from Chris R.

"I was with ******* for 4 years at $230 a month, this is a huge savings for me, GOD BLESS YOU PEOPLE," - Comment from T.S. via Email

"You are much better than lawyers or the phone company because you answer the phone when I call! I just love your customer service." - Comment from Isreal

"IQ feed is brilliant. The support is mind-bending. What service!" - Comment from Public Forum Post

"It’s so nice to be working with real professionals!" - Comment from Len

"I started a trial a few weeks back before the market went wild. DTN.IQ didn’t miss anything and beat my other provider. I decided to stay with you because of the great service through all the volatility." - Comment from Mike

"I ran your IQFeed DDE vs. my broker vs. a level II window for some slow-moving options. I would see the level II quote change, then your feed update instantaneously. My broker's DDE, however, would take as much as 30 seconds to update. I am not chasing milliseconds, but half a minute is unacceptable." - Comment from Rob

"Version 4.0.0.2 has been working well for me and I appreciate that it is now a much tighter client to work with. I feel I can go to press with my own application and rely on a stable platform" - Comment from David in IA.

Home

Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather

DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter

»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support »2.3.0.3 Timing issue for watch list

Author	Topic: 2.3.0.3 Timing issue for watch list (5 messages, Page 1 of 1)
ensign -Interested User- Posts: 2 Joined: Jun 6, 2005	Posted: Jun 6, 2005 04:16 PM Msg. 1 of 5 Testing with 2.3.0.3 and using the watch command in a loop to ask for 40+ symbols to be watched. Upon initial request for 40 symbols, the Connection Manager Feed Stats form will show 6 symbols. If I repeat the request the number of symbols followed will go to 11, repeat full list again, number of symbols followed will go to 16, then to 21, etc. This I can verify by seeing which Fundamental records are returned. My conclusion is that I am making requests to the watch list faster than the IQfeed Connect can process the requests, or is there a handshake I should be using so I do not overrun the request process. I interface directly with the DLL using Delphi 6. The TCP/IP socket is using this type of an example string: tcp5009.sendln('wIBM'+#13+#10+#0+#1,#1) I have a 1/50th of a second delay after the string is sent to the socket, as that seemed to be an effective delay pace for the 2.3.0.1 version. How should I be sending the watch list so all symbols are reliably processed and begin to update? Thanks. Sincerely, Howard Arrington www.ensignsoftware.com
DTN_Natalie_H -DTN Evangelist- Posts: 175 Joined: May 10, 2004 DTN Market Access, LLC.	Posted: Jun 7, 2005 09:53 AM Msg. 2 of 5 Hi Howard, Thanks for bringing this to my attention. I wasn't aware of this issue, but will look into it. It there a watchlist file that you can send to the developer support email, so I can test with ensign and IQFeed? Thanks! Natalie Natalie Hannan DTN Market Access, LLC.
David -DTN Evangelist- Posts: 113 Joined: May 7, 2004 I'd rather be...	Posted: Jun 7, 2005 11:28 AM Msg. 3 of 5 Quote: tcp5009.sendln('wIBM'+#13+#10+#0+#1,#1) I am curious why you send the extra 'stuff' at the end of the watch request. The DTN API shows: w[symbol]\n. I just send the symbol followed by the #10 linefeed character (as per API and empirical testing). Has been working well for all client versions. Maybe I am missing something... Thanks, David *IQXP Software* http://www.iqxp.com LiveWire Update Service PO Box 1417 Fairfield, IA 52556 641-472-8393 http://www.livewire-cablesoft.com/
ensign -Interested User- Posts: 2 Joined: Jun 6, 2005	Posted: Jun 8, 2005 02:02 PM Msg. 4 of 5 This issue has been resolved via a change in Ensign to watch all symbols using one request instead of making multiple requests with 1 symbol per request. Thanks for the feedback. Sincerely, Howard Arrington www.ensignsoftware.com
DTN_Natalie_H -DTN Evangelist- Posts: 175 Joined: May 10, 2004 DTN Market Access, LLC.	Posted: Jun 8, 2005 02:20 PM Msg. 5 of 5 Glad to hear that it is resolved. But, you can also watch one symbol at a time. If anyone is having issues with that, let me know. I need to make sure that either way is reliable. Thanks! Natalie Natalie Hannan DTN Market Access, LLC.