Unable to read cache data error

[Harry]

Would you happen to be using a custom BarsType?

No, I do not use any custom bar types. The error message was produced while switching instruments on a regular 15 minute chart.

[NinjaTrader_DaveI]

Harry, just to confirm, you have uninstalled Beta 7 and installed a new copy from the website to get Brett's hotfix, and the issue is still occurring?

[Harry]

Harry, just to confirm, you have uninstalled Beta 7 and installed a new copy from the website to get Brett's hotfix, and the issue is still occurring?

I have uninstalled Beta 6 and then downloaded and installed Beta 7 on December 5, 3:12 PM EST. As Brett had uploaded the hotfix on December 3, I believe that I have installed the latest version.

[NinjaTrader_DaveI]

I see, thank you. December 5th should have given you the latest version of Beta 7 after the hot fix was applied, but you might consider doing a completely fresh install (including Documents/NinjaTrader 8 folder) just to make double sure you are indeed working with the hotfix version. Please let me know if you continue to see the issue after a re-install, and we will know that something is still outstanding.

[NinjaTrader_Brett]

Can we sync up via email and please email me your workspace your loading and your log and traces. I'll review with development since the trace is very specific to some kind of serialization issue according to your exception you posted.

My email is [email protected]

[Harry]

Can we sync up via email and please email me your workspace your loading and your log and traces. I'll review with development since the trace is very specific to some kind of serialization issue according to your exception you posted.

My email is [email protected]

I had another case. It only happened when I was connected to a Kinetick Live datafeed and also selected an extended lookback period. The trigger always was toggling between instruments.

I will send you the excerpt from the trace file via e-mail.

[sledge]

reported as spam. DO NOT CLINK THAT LINK. total nonsense babbling.

@gmail.com
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Join Date: May 2016
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[NinjaTrader_DrewO]

Hello sledge,

Thanks for reporting that item.

I have removed the forum post.

[sledge]

I had another case. It only happened when I was connected to a Kinetick Live datafeed and also selected an extended lookback period. The trigger always was toggling between instruments.

I will send you the excerpt from the trace file via e-mail.

I hit an exception tonight for WRITE CACHE data after connecting to Playback-MR.

My previous NT8B9 replay had crashed upon un-hibernation... lost the results...anyways -

shutdown machine... booted back up...


It looked liked svchost.exe was running on 1 core... it's been a couple of weeks... Windows Defender is excluded from accessing this folder... so not sure what is going on?!!! (see image).

connected to playback-MR...

LOG:

2016-05-12 22:01:22:895|2|4|Session Break (Version 8.0.0.9)
2016-05-12 22:01:24:159|1|4|Verifying license at primary server...
2016-05-12 22:01:24:720|1|4|Type=Simulation State=Verified Start Date=12/31/2004 End Date=11/30/2099
2016-05-12 22:01:24:783|1|4|Global simulation mode enabled
2016-05-12 22:01:25:937|1|2|Connecting to IS (is-us-001.ninjatrader.com/31658)
2016-05-12 22:01:25:953|1|4|Automated trading disabled
2016-05-12 22:01:25:984|1|32|Order entry hot keys disabled
2016-05-12 22:01:25:984|1|4|Auto close enabled=False
2016-05-12 22:02:51:763|1|2|Playback Connection: Primary connection=Connecting, Price feed=Connecting
2016-05-12 22:02:52:066|1|2|Playback Connection: Primary connection=Connected, Price feed=Connected
2016-05-12 22:02:52:068|1|2|Time to auto close position='12:00:00 AM', Enabled=False
2016-05-12 22:02:52:473|1|2|Simulation account 'Playback101' reset
2016-05-12 22:03:01:091|1|2|Simulation account 'Playback101' reset
2016-05-12 23:08:40:189|1|2|Playback Connection: Primary connection=Disconnecting, Price feed=Disconnecting
2016-05-12 23:08:40:219|1|2|Playback Connection: Primary connection=Disconnected, Price feed=Disconnected
2016-05-12 23:08:51:174|1|2|Playback Connection: Primary connection=Connecting, Price feed=Connecting
2016-05-12 23:08:51:422|1|2|Playback Connection: Primary connection=Connected, Price feed=Connected
2016-05-12 23:08:51:422|1|2|Time to auto close position='12:00:00 AM', Enabled=False
2016-05-12 23:08:51:573|1|2|Simulation account 'Playback101' reset
2016-05-12 23:09:26:050|0|4|Unable to write cache data

trace:

2016-05-12 230840216 (Playback Connection) Cbi.Connection.ConnectionStatusCallback.Close3
2016-05-12 230840217 (Playback Connection) Cbi.Connection.ConnectionStatusCallback.Close4
2016-05-12 230840217 (Playback Connection) Cbi.Connection.ConnectionStatusCallback.Close5
2016-05-12 230840217 (Playback Connection) Cbi.Connection.ConnectionStatusCallback.Close6
2016-05-12 230840217 (Playback Connection) Cbi.Connection.ConnectionStatusCallback.Close7
2016-05-12 230840217 (Playback Connection) Cbi.Connection.ConnectionStatusCallback.Close8
2016-05-12 230840219 (Playback Connection) Cbi.Connection.ConnectionStatusCallback status=Disconnected priceStatus=Disconnected previousStatus=Disconnecting previousPriceStatus=Disconnecting errorCode=NoError nativeError=''
2016-05-12 230840219 (Playback Connection) Cbi.Account.OnConnectionStatus account='Playback101' status=Disconnected previousStatus=Disconnecting message=''
2016-05-12 230851173 (Playback Connection) Gui.ControlCenter.OnConnect
2016-05-12 230851174 (Playback Connection) Cbi.Connection.Connect0 status=Disconnected assembly=8.0.0.9 date=2016-05-12 runAsProcess=False
2016-05-12 230851174 (Playback Connection) Cbi.Connection.ConnectionStatusCallback status=Connecting priceStatus=Connecting previousStatus=Disconnected previousPriceStatus=Disconnected errorCode=NoError nativeError=''
2016-05-12 230851174 (Playback Connection) Cbi.Connection.Connect1
2016-05-12 230851175 (Playback Connection) Cbi.Connection.Connect2
2016-05-12 230851175 (Playback Connection) Cbi.Connection.Connect3
2016-05-12 230851175 (Playback Connection) Cbi.Connection.CreateAccount account='Playback101' displayName='Playback101' fcm='' denomination=UsDollar forexLotSize=10000
2016-05-12 230851175 (Playback Connection) Cbi.Account.OnConnectionStatus account='Playback101' status=Connecting previousStatus=Disconnected message=''
2016-05-12 230851175 (Playback Connection) Cbi.Account.OnConnectionStatus.PositionExecutions account='Playback101'
2016-05-12 230851175 (Playback Connection) Cbi.Connection.Connect4
2016-05-12 230851422 (Playback Connection) Cbi.Connection.Connect5
2016-05-12 230851422 (Playback Connection) Adapter.PlaybackAdapter.Connect
2016-05-12 230851422 (Playback Connection) Cbi.Connection.ConnectionStatusCallback status=Connected priceStatus=Connected previousStatus=Connecting previousPriceStatus=Connecting errorCode=NoError nativeError=''
2016-05-12 230851422 (Playback Connection) Cbi.Account.OnConnectionStatus account='Playback101' status=Connected previousStatus=Connecting message=''
2016-05-12 230851422 (Playback Connection) Core.Connection.Statistics connectAttempts=14.0ms
2016-05-12 230851422 (Playback Connection) Cbi.Connection.ConnectionStatusCallback autoClosePositionTime='01312016 000000' autoClosePosition=False
2016-05-12 230851423 (Playback Connection) Cbi.Connection.Connect9 ok
2016-05-12 230851566 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=BuyingPower currency=UsDollar value=
2016-05-12 230851566 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=CashValue currency=UsDollar value=
2016-05-12 230851566 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=Commission currency=UsDollar value=
2016-05-12 230851567 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=Fee currency=UsDollar value=
2016-05-12 230851567 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=GrossRealizedProfitLoss currency=UsDollar value=
2016-05-12 230851567 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=InitialMargin currency=UsDollar value=
2016-05-12 230851567 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=IntradayMargin currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=LongOptionValue currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=LookAheadMaintenanceMargin currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=LongStockValue currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=MaintenanceMargin currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=NetLiquidationByCurrency currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=PositionMargin currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=RealizedProfitLoss currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=ShortOptionValue currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=ShortStockValue currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=SodCashValue currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=SodLiquidatingValue currency=UsDollar value=
2016-05-12 230851573 (Playback Connection) Cbi.Account.AccountItemCallback account='Playback101' accountItem=TotalCashBalance currency=UsDollar value=
2016-05-12 230926050 ERROR Data.Bars.Load7 System.IO.IOException The process cannot access the file 'CUsersninja2015DocumentsNinjaTrader 8dbcacheCME US Index Futures ETH.Eastern Standard TimeMINUTEES 03-14Minute_2_1_Last_Close_Tick_Minute_1.Last.ntb' because it is being used by another process.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.File.InternalDelete(String path, Boolean checkHost)
   at NinjaTrader.Data.BarsSeries.Load()
2016-05-12 231139327 (Playback Connec

I use my NT8 B11 laptop daily (for other things) so not sure how I can reproduce entirely... so I guess it just happens...