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Historical data corrupted in NT7

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    Historical data corrupted in NT7

    Good afternoon,

    I am using Ninjatrader 7 with IB feed and I get the message "Historical data in your database is corrupted, please reload historical minute data for CL 04-20 from 3/6/2020 to 3/8/2020" with Tools-Historical Data>Reload.

    I have performed the above a few times, i have reloaded from a back up... also. When i reload from a back up it works fine until i change time period on the chart then i get the above message and the chart flatlines.

    Other symbols are working fine, only crude oil CL contract is acting this way.

    Thank you for your suggestions and help

    Wade

    (edited to remove personal information)
    Last edited by NinjaTrader_ChelseaB; 03-08-2020, 11:04 PM.

    #2
    Hello swade,

    Welcome to the NinjaTrader forums!

    I'd like you to try removing the historical data, and then reloading it.

    Please use the steps I have provided below to delete the chart cache and historical data.
    • Close NinjaTrader
    • Open (My) Documents\NinjaTrader 7\db\cache\
    • Delete all files within this folder
    • Go up one directory to the \db\ folder
    • Repeat this procedure for the tick, minute, and day folders as well to delete your downloaded historical data
    • Restart NinjaTrader
    • Connect

    Open a new chart without any indicators or templates applied to see if you are able to load a chart.

    This initial load may take a little longer than normal since all new data is being loaded from the historical data servers. After everything has loaded please restart NinjaTrader and let me know if you continue to experience a slow load time.
    Chelsea B.NinjaTrader Customer Service

    Comment


      #3
      Similar problem here but with other instruments. I get a flat line instead of price movement/candles. See attached.

      Okay: 6A, 6B, 6E, 6J, CL, GC.

      Corrupted: NQ, MNQ, MES, M2K, MYM.

      I followed Chelsea`s advice, removed historical data, then restarted NT7. No change.

      Help please.

      sandman
      Attached Files

      Comment


        #4
        I think I just found the answer:
        Lock Limit in place until 8:30am CT.
        Has nothing
        to do with NT`s servers.

        Here is the Investopedia entry in case of interest


        sandman


        Attached Files

        Comment


          #5
          ChelseaB,

          With my IB feed after performing the steps above I get the following from NT7 "Error on loading chart data for CL-04-19 Error in requesting historical data from IB. No security definition has been found for the request (200). Thank for your help

          Wade

          Comment


            #6
            Actually now i have no data on any charts... even if i open a new workspace and open a single chart i can open an ES 03-20 chart and click reload all historical data.. blank chart, nothing.

            Comment


              #7
              Hello swade,

              No security definition may indicate instrument settings or delayed data.

              In TWS if you hover the mouse over the CL in a row does it mention delayed data, or does this have a yellow dot next to it?

              If not, please try resetting instruments and restarting.

              To do this:
              • Disconnect from any connections
              • Click Tools -> Options... -> select the Data tab
              • Click the Reset Instruments button -> Restart NinjaTrader

              If this does not resolve the behavior, please send an email to platformsupport [at] ninjatrader [dot] com so that we may schedule a call to assist.
              In the email, please include a link to this forum thread.


              sandman,

              You are correct, following significant market activity yesterday, several CME Group markets including the Equity Indexes are at lock limit until Monday, March 9th at 8:30 am CT. Lock limits are used by exchanges to regulate market volatility.

              If you are not seeing continuous market activity in your platform, it is likely due to the lock limit and not an issue with your data connection.

              If you are a NinjaTrader Brokerage client and are unable to exit a position in these markets, please be aware this is likely due to the lock limit. In addition, due to the risk presented by significant market swings, intraday margins for the CME Equity Indexes, Interest Rates and Energies have been increased 2X until further notice.

              Learn more about this here:
              Chelsea B.NinjaTrader Customer Service

              Comment


                #8
                ChelseaB, that did it. Thank you for the help

                W

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