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)




"As a past ******* customer(and not a happy one), IQ Feed by DTN is a much better and cheaper product with great customer support. I have had no problems at all since switching over." - Comment from Public Forum
"If someone needs the best quality data and backfill beyond what their broker provides at a rate that is the best in the industry, I highly recommend IQFeed." - Comment from Josh via Public Forum
"DTN has never given me problems. It is incredibly stable. In fact I've occasionally lost the data feed from Interactive Brokers, but still been able to trade because I'm getting good data from DTN." - Comment from Leighton
"You have an excellent feed. Very few spikes for Spot Forex." - Comment from Public Forum Post
"I have to tell you though that using the IQFeed API is about the easiest and cleanest I have seen for some time." - Comment from Jim
"I just wanted to let you know how fast and easy I found it to integrate IQFeed into our existing Java code using your JNI client. In my experience, such things almost never go so smoothly - great job!" - Comment from Nate
"I am very pleased with the DTNIQ system for quotes and news." - Comment from Larry
"Interactive Brokers tick data was inconsistent, so I have switched to using DTN exclusively. It is great to no longer have to worry about my datafeed all day long." - Comment from Philippe
"I am a hedge fund manager here. It’s funny, I have a Bloomberg terminal and a Bridge feed, but I still like having my DTN feed!" - Comment from Feras
"Boy, probably spent a thousand hours trying to get ******* API to work right. And now two hours to have something running with IQFeed. Hmmm, guess I was pretty stupid to fight rather than switch all this time. And have gotten more customer service from you guys already than total from them… in five years." - Comment from Jim
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 »IQFeed Developer »IQFeed Developer Support »Realtime feed delayed
Author Topic: Realtime feed delayed (5 messages, Page 1 of 1)

AHA
-Interested User-
Posts: 36
Joined: Jan 31, 2012


Posted: Dec 2, 2021 09:52 AM          Msg. 1 of 5
My EUREX realtime feed, eg XGZ21 is currently delayed by 4 minutes.

I did a ping and traceroute, looks good, there is no queue in the iqfeed app.

Any ideas?

DTN_Gary_Stephen
-DTN Evangelist-
Posts: 219
Joined: Jul 3, 2019


Posted: Dec 2, 2021 11:15 AM          Msg. 2 of 5
The "KB Queued" statistic you see in Diagnostics/Client Stats tab measures queueing that happens on the client only. This is data that has already been processed on the IQFeed servers, and is on your local machine, but IQFeed is unable to send to your app. This happens because your app is not reading data fast enough from the feed.

What we're seeing in your case is queueing on the server end. Meaning, the queueing is occurring before the data reaches your machine. This queue will not show up in that KB Queued statistic. When this happens, it suggests possible network degradation between you and our servers, which effectively reduces your available bandwidth. We aren't seeing this delay with other users, and we're aware of any delays in data coming from EUREX, so it is probably unique to your connection.

The best thing you can do is disconnect/reconnect from the IQFeed server, or possibly reboot your machine, and see if you can get a better route to the IQFeed server. That should help alleviate the delay.

Sincerely,
Gary Stephen
DTN IQFeed Implementation Support Specialist

AHA
-Interested User-
Posts: 36
Joined: Jan 31, 2012


Posted: Dec 2, 2021 04:01 PM          Msg. 3 of 5
Thanks for the help.

Did a restart before market close, delay was good for a few seconds, and then back to 4 min.
30 minutes after market close I couldn't reproduce the delay.

Some days there is no delay at all, once in a while I run into these delays.

I have a second feed connected to a Frankfurt farm and never ran into any delays, so the root cause could be the transatlantic line.

I'm really wondering if I am the only European customer affected by these kind of problems, or I am the only one monitoring and logging feed quality :)
Edited by AHA on Dec 2, 2021 at 04:02 PM

DTN_Gary_Stephen
-DTN Evangelist-
Posts: 219
Joined: Jul 3, 2019


Posted: Dec 2, 2021 04:52 PM          Msg. 4 of 5
IQFeed has lots of users in Europe and around the world, and we're not aware of any widespread issues associated with any geographic areas.

And are you saying the delay went instantly from nothing to 4 minutes? What time did this happen? I can look further on our end.

Sincerely,
Gary Stephen
DTN IQFeed Implementation Support Specialist

AHA
-Interested User-
Posts: 36
Joined: Jan 31, 2012


Posted: Dec 3, 2021 09:47 AM          Msg. 5 of 5
Yesterday the delay went up to 4 minutes, 10 min after the restart at 9:57:38pm CET.

Today I had 5 disconnects at 1:03pm, 1:04pm, 1:05pm and 1:15, and 1:47pm CET, mostly right after a delay of about 5 to 10s. After the last disconnect, the feed has been realtime for about 3 hours now.

You mentioned, that you are able to monitor a clients server queue on your end.
Actually I prefer a server side disconnect when there is a delay of more than 8 seconds in the IQF timestamp, since the feed reconnects automatically within less than 2 seconds.

Are there any plans to implement such a function, or should I implement this rather in my app?
(I know that currently IQF disconnects after no timestamp for 8 seconds at all, but in my case this doesn't help)
 

 

Time: Mon December 6, 2021 6:20 AM CFBB v1.2.0 15 ms.
© AderSoftware 2002-2003