Support Board
Date/Time: Tue, 26 Nov 2024 11:16:22 +0000
One Minute Chart Displaying All Real Time Data in 1PM Candle
View Count: 4085
| [2013-05-13 13:56:59] |
| ged - Posts: 233 |
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Have been using SC and IB without problem. Have most recent SC release and IQ 5.1. Today, on startup, all data in my 1 min candle chart is accumulating in one candle, the 1 PM candle at end of day. Haven't seen this before, and don't know what to do to fix it. The 5 min and 15 min charts (in same chartbook) seem to be working normally. Thanks for help. |
| [2013-05-13 14:31:04] |
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Go to that chart and re-download the data by selecting Edit >> Delete All Data and Download.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2013-05-13 15:22:16] |
| ged - Posts: 233 |
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I did that, starting back on May 10, but without success (no improvement). When I did it just in the premarket for today, then the re-download was successful and all is back to normal.
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| [2013-05-18 03:55:03] |
| ged - Posts: 233 |
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I spoke too quickly in the above posts and, unfortunately, this data loading problem persists. I have completely deleted and then reloaded the data file in question. I have updated SC to V976. The problem is this: When I open SC (one instance connected to IQFeed and one instance connected to IB), and open a Chartbook in the IQFeed instance, I find that the premarket data in my 1 min, 5min and 15 min charts ceases to paint in the premarket time frame shortly after the download, and leaps forward to the 1PM candle(s) of the day for each of the 3 charts. Then, at 1PM on each chart, the data paints a mega 1PM candle. If I go back to the pre-market time period, and a few candles before the candles cease, I delete and reload the data again, the process merely repeats itself. If I do the delete and download of data during the 6:29AM candle (Pacific Time Zone), then the candles begin to form in the regular market time period. At that point, the candles will continue to form normally until 1PM. However, at 1PM the data then continues to build one mega candle again, and only moves a few candles at a time further in the after market time period when I do another delete and download just prior to where the candles last stopped. This really puzzles me, as I have been using IQFeed, IB, and these chartbooks for several months without any problem like this. To my knowledge, nothing in the chartbooks has changed other than the occasional adding or subtracting of a miscellaneous study. Hopefully you can point me toward a simple fix. Thanks much. |
| [2013-05-19 04:22:13] |
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As a test in order to isolate the cause of the issue, run only a single copy of Sierra Chart. It needs to be the IQ Feed copy. Delete and re-download the Data from before any errors with the chart bars or timestamps. See if you continue to notice the problem. If you do, then it would seem to be an IQ Feed data time stamping problem. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2013-05-19 04:22:41
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| [2013-05-19 07:57:33] |
| ged - Posts: 233 |
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When I open a single 1 min chart, same symbol, in IQFeed instance - with no other instance running - it appears the chart loads accurately and completely ( though this is necessarily an 'after hours' test). I will run this test again on Monday morning after the pre-market opens and let you know how it goes.
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| [2013-05-20 12:38:49] |
| ged - Posts: 233 |
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In this morning's premarket (on West Coast), if I open the SC instance connected to IQFeed, and open the chartbook in question, the problem is present: on, as an example, a one minute chart, candles appear up to and slightly past the point of download, and then the data jumps to 1PM and just begins building at 1PM minute after minute (just the same as described above). However, if I open only a fresh intraday 1 min chart, same symbol, the data builds candle by candle just fine - no jumping to 1PM. Apparently, something is missing/corrupted in my chartbook. Recently (week or two ago) I deleted some chartbooks I no longer use that were in this same instance. What would cause the data to act as described above, and what do I need to do to fix it? Thanks much. Date Time Of Last Edit: 2013-05-20 12:40:08
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| [2013-05-20 16:51:10] |
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With how you describe it now, this clearly sounds as though the Session Times are not set correctly. Please refer to help topic 3.3 here: http://www.sierrachart.com/index.php?l=doc/helpdetails3.html#h3.3 Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2013-05-20 17:02:55] |
| ged - Posts: 233 |
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At all times throughout the period this problem has manifested, the chart session times was set to start at 00:00:00 and end at 23:59:59. Reading the documentation, this setting should eliminate the possibility that this is the cause of the problem. Thanks again.
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| [2013-05-20 17:18:59] |
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If adjusting the Session Times for existing charts does not resolve it, and creating a new chart resolves the problem, then please create new charts. If the Session Times are set correctly with existing charts, and you still have the issue, it is not clear why. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2013-05-20 20:53:21] |
| ged - Posts: 233 |
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As it turns out, the problem does manifest itself in new charts outside of the chartbook. Here is a screen shot of a simple, new 1 minute chart. Take a look at the Time Scale at the bottom of the chart. You will see that the scale repeats itself periodically by restarting at 13:00!
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 glitch.png / V - Attached On 2013-05-20 20:53:06 UTC - Size: 36.74 KB - 572 views |
| [2013-05-20 21:00:12] |
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This could be because you are sharing the same Data Files Folder between 2 copies of Sierra Chart. To see what the folder is set to select Global Settings >> General Settings. Each copy of Sierra Chart must use a different Data Files Folder.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2013-05-20 23:52:41] |
| ged - Posts: 233 |
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I have 3 instances of SC now and each is in a different folder. If you open a chart in any one of the instances and go to Global Settings >> General Settings for that instance, you find that the Data Files Folder is different than either of the other two instances. Also, just to double check, I just opened a new 1M chart in the new instance of SC I downloaded today (V976) for test purposes, and the Time Scale repeats. I believe the "repeating" of 13:00 on the Time Scale appears at each point where the data is deleted and re-downloaded (which is done to try to get the data to load properly from that point forward). |
| [2013-05-21 02:46:41] |
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We will have to follow up on this with remote assistance tomorrow.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2013-05-21 03:45:49] |
| ged - Posts: 233 |
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That's fine. What is the procedure for making contact? I prefer not to put my telephone number on the public board. Do you have a preferred time window? The premarket period, prior to 6:30 AM Pacific Time, would work well for me, but I certainly will work with what works for you. |
| [2013-05-21 13:16:55] |
| LORENFOSTER - Posts: 1 |
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I have some issues with a AAPL chart not going past 1500 . it stopped displaying data at that time and created a large bar http://www.sierrachart.com/image.php?l=1369142145296.png Date Time Of Last Edit: 2013-05-21 13:17:39
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| [2013-05-21 16:35:19] |
| ged - Posts: 233 |
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I have spoken with IQFeed and they have been able to substantially duplicate the problem I am reporting when they use IQFeed V5.0.0.1 and SC V976, and are trading AAPL. When they do the same thing with other chart platforms they don't experience the problem. Again, you will only be able to observe the problem if you start in the pre-market or take a look at the data in the after market period. During the 6.5 hours of the regular market the candles build as expected until you reach the close. Thanks for working on this. Date Time Of Last Edit: 2013-05-21 16:50:39
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| [2013-05-21 17:10:33] |
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We are looking into this.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2013-05-21 20:35:48] |
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We ran an Apple chart using delayed data but continuously streaming data, into the close and we did not notice any problems: http://www.sierrachart.com/image.php?l=1369168425368.png Despite that IQ feed does not see this issue with other programs, from what we are hearing and seeing from the images posted, this very obviously looks to us like there is something faulty with the IQ feed timestamps. That is quite clear. They should really look at the timestamp data they are sending and see why it is changing at the time you are noticing a problem. We never had a problem previously with IQ Feed timestamps and we have not touched our code that processes those. Therefore, we ask IQ Feed to look at this closely at the timestamp data they are providing you at the time you are having a problem. Please provide them this message. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2013-05-21 23:01:07
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| [2013-05-21 22:33:45] |
| ged - Posts: 233 |
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I've passed the above information onto IQFeed. They have been helpful and responsive to this point, so I expect they will look into the problem further. In as much as in their preliminary testing the problem only manifests itself in Sierra Chart, I wouldn't be surprised if Sierra Chart and IQFeed may need to work together to resolve the issue(s). Thanks in advance for your continued efforts.
Date Time Of Last Edit: 2013-05-21 22:34:16
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| [2013-05-23 03:29:19] |
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We have not forgotten about this. Has IQ feed been able to look into this for you? If they have any questions or do not believe the issue is on their side, they need to contact us at support AT SierraChart.com. We are going to connect to IQ feed before the stock market open and leave the connection open and see if we notice a problem. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2013-05-23 03:30:23
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| [2013-05-23 04:20:00] |
| ged - Posts: 233 |
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Really appreciate your efforts, you guys are great. I spoke on the telephone and emailed IQFeed this morning. I know they have read your Post of yesterday at 20:35:48 (above). A fellow in support said the problem may well be on their end, but it only shows itself when using Sierra Chart. They tried to replicate the problem in several other trading platforms, but are unable to do so. So, the last I've heard, I think they are a bit perplexed by the situation, but looking for a fix. Presently, I have another email into them, requesting an update on the status of their efforts, but no reply received as yet. This is rather critical for me, as AAPL is the only thing I trade and it is very inconvenient to miss the opening candles each day. I believe this has been going on for about 9 trading days now. I look forward to what you may learn by using IQFeed data for AAPL in the pre-market tomorrow morning. If you have the experience I'm having, the candles will cease to form in the premarket at the end of the candle in progress when the data completes it download, then the data jumps forward and begins to accumulate at the 1 PM candle. This pattern cannot be broken in pre-market until a new data reload is begun near the end of the 6:29 premarket candle (West Coast time). That gets you into the regular market hours, and everything will then work until 1 PM is reached. Thanks again. |
| [2013-05-23 05:10:49] |
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This is why they need to actually look at the timestamp text they are sending. Sierra Chart has a very efficient parsing method and if it is not correctly formatted according to their specifications, there are going to be timestamp problems like you have seen. We are going to be doing some testing and we will report back in the morning what we see. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2013-05-23 10:42:41] |
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We have confirmed there is faulty timestamp data from IQ Feed. We received 2 trades that were interpreted as having a timestamp of 16:00:00 New York time, very early in the morning. We did not see the raw data but this was the interpretation of the data using our processing code which precisely follows the IQ feed timestamps specification.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2013-05-23 10:43:28
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| [2013-05-23 12:56:11] |
| ged - Posts: 233 |
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Thank you for confirming that. While I will pass your findings along to IQFeed, if you are able to provide what you have determined to IQFeed directly (perhaps you have an appropriate contact there), it may aid in achieving the fix on their end more rapidly. Very much appreciate SC Support. |
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