Indicator Panel Freeze

[Harry]

This is a reproducible problem that crashes NT7, Release 7.0.0.5

To produce this problem, connect to Interactive Brokers, then open one chart - I used ES (5 min) with a lookback period of 50 days. I then put two indicators (NT7 pivot indicators daily and weekly) on the chart, set them to infinite (256 bars are not enough). When I tried to remove one of the indicators, the indicator panel could no longer be closed. The chart still showed price action, but the indicator panel blocked all attempts to access NT, so I had to go to the windows task manager and remove NT by force.

I experienced the same problem with other personal indicators that also catch daily bars similar to the pivots indicator. Same type of freeze of the indicator panel (indicators work).

For further investigation I will send the trace file to your support mentioning this thread. The last line in the trace files shows an IB HistoricalDataRequest... so NT locks on DataRequest and this also causes the freeze of the indicator panel (why?).

By the way, the NT pivot indicator displays daily pivots, if set to weekly or monthly, which it shouldn't.

[NinjaTrader_JoshP]

Weekly pivots will tell you that you do not have sufficient historical data to calculate on a 50 day back chart.

Not sure what you mean by indicator panels as pivot indicators go on the price panel. Please clarify.

[Harry]

If you want to add indicators you right click on a chart and a panel (menu) opens. When this menu is open, you can add indicators. Sorry I called this a panel, I am not a native English speaker.

This is the thing that cannot be closed again. It remains there forever, whether you select "OK" or "Close", it simply refuses to disappear and therefore NT can only be terminated via Windows Task Manager.

Weekly pivots: I had a sufficient lookback period. If you select weekly pivots, daily pivots are displayed instead.

[NinjaTrader_Bertrand]

Harry, got your files and note sent to support, thanks I'll try reproducing.

[Harry]

2 further remarks

Thanks for your help Bertrand!

To understand the problem, there are 2 conditions required for the indicator menu to freeze

(1) must be connected to IB

(2) only applies if indicators are selected that directly access daily data from an intraday chart via

Data.Bars.GetBars(Bars.Instrument, new Period(PeriodType.Day, 1, Bars.Period.MarketDataType), Bars.From, Bars.To, (Session) Bars.Session.Clone(), Data.Bars.SplitAdjust, Data.Bars.DividendAdjust)

such as all Pivot indicators that use the DailyBars method. In particular I have coded one Fibonacci indicator in two different versions

- version A accesses intraday data only (tested for up to 300 days)
- version B (ultrafast compared to version A on NT 6.5.1000.14) accesses 30 to 40 days of intraday data and then thousands of days of daily data

Version A works on NT 7 when connected or not, version B only works, if not connected to IB. As the 2 versions are near identical - with the only exception of the DailyBars access - the DailyBars are the likely cause.

If need you can access my PC via UltraVNC.

[Harry]

Another detail

When the indicator menu is locked, it is still possible to delete all indicators, the indicators will also disappear from the chart, but there is no escape route from the indicator menu (see screenshot). Selecting "OK" or "Close" will not close this menu! NT 7 is locked forever.

[NinjaTrader_Bertrand]

Thanks for the additonal input - so far unfortunately unable to see this here on my end connected to IB.

Which session templates are you using to test this?

[Harry]

Using default session templates for ES.

[zweistein]

I did what Harry said and added a Pivot indicator to my ES chart.
A big red X on the chart, but other charts still running.

Must exit to resolve...

side effect: 20 days of ES wiped out in the data base

[Harry]

Also had the big red X on some occasions, but usually just locking the indicator menu.

[NinjaTrader_Austin]

Harry, I've tested this and can reproduce the issue (un-closable indicator window). We will look into this.

zweistein, could you list the exact steps that lead to the big red X?

[Harry]

Austin, good news that you could reproduce. Actually there are 3 problems:

(1) NT locks on daily bars data request from IB.
(2) As one of the consequences the indicator menu cannot be closed.
(3) Not as important: the weekly and monthly pivot indicators return daily pivot values.

Thanks for your help. This issue is quite important for me, as I have a number of indicators accessing dailybars, and the whole bunch cannot be used with NT7. They are not working properly once connected to IB, they are only working offline.

[NinjaTrader_JoshP]

Harry,

We are looking into #1 and 2. #3 is the case because you don't have enough data loaded from proper calculations as indicated by the text on the lower right of the chart. When that occurs, you get daily values.

[Harry]

#3 There is no text on the lower side of the chart. I used 65 days of data (worst case for Pivots on August 31st, if June 29 is a Saturday). The indicator was set to infinite.

Whatever I do, the indicator always displays the same values for daily, weekly and monthly pivots. This happens with 24/7 session template or instrument settings template, with DailyBars or CalcFromIntradayData.

[Harry]

Bug caused by updating of daily data (connected)

#1 I just tested the indicator loading, when connected to Gain/Ninja Servers. These servers only supply intraday data, so the indicator uses daily data stored in the data base without reloading or updating. In this case the indicators do not freeze and the indicator menu does not lock.

Conclusion: If an indicator that runs on an intraday chart also accesses daily data (via Data.Bars.GetBars....) and this data is being updated from an external data source (status connected), this can easily lock NT 7.

I want to point out that this issue is already the major reason for the instability of NinjaTrader 6.5. Interference of data loading (in particular for connected intraday charts, market analyzer) locks up NinjaTrader 6.5. all the time (savings popup, empty and corrupted charts).

I´ve noticed that NT7 uses less resources and is much faster than NT 6.5., so I am also hoping for enhanced stability!