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Platform Technical Support General platform technical support for NinjaTrader 8.

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Old 05-20-2018, 03:34 PM   #1
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Default data corrupted

Getting unable to read or write cached data when opening Ninjatrader8.

When trying to download period of corrupted data, I am not able to do so. Ninjatrader shuts down automatically.

Please help.

Thank you
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Old 05-20-2018, 05:02 PM   #2
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NM.It went away after third reboot.
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Old 05-20-2018, 08:11 PM   #3
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Hello kapa1,

If the behavior returns please send an email to platformsupport [at] ninjatrader [dot] com for assistance.
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Old 06-01-2018, 11:44 AM   #4
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Default same problem

i am having the exact same problem so would like to join in on fixing this.
I also accept as true with it's a dealer connector difficulty and no longer an indicator, cache, pc, nor net ...
because, i have separate connections, one reasons this trouble even as the opposite would not. additionally because this doesn't appear in NT7.

the one connection works without cache and streaming freezing issues. within the operating connection, i will load my work space with many charts and an MA with many devices. This takes about three mins to complete loading. Then I start the relationship. It takes 30 minutes for the whole thing to finish loading. all the historic information is already on my drive but it takes 30mins. Is MA requesting full historical facts again from the relationship? that's an unbelievably long time on my exquisite rapid i7, wonderful speedy ssd with many gb free area, 24 gb ram, Win10 device. To load ancient facts takes an hour on this connection while it only take 10 mins on the alternative.

Doing the above startup with charts and MA at the horrific connection, first reasons a "the relationship was forcibly closed by means of" blunders after several "primary connection=Connection lost, fee feed=Connection lost". This tells me that NT8 is sending a fire hose of requests to the 'terrible' connection.

possibly it is due to the fact NT8 now send parallel records requests which might be overloading the connection. I examined this by ... having the relationship off then commencing the workspace and letting it settle then disposing of the MA then starting the relationship. This series works simply first-rate, like Fred. The charts update. After approximately fifteen minutes, i will begin the MA which takes fifteen minutes to complete loading. but after a half hour or more some of the charts will forestall updating. also, after I do this startup collection round 9am so the relationship can 'settle' then a few minutes after the marketplace opens some of the information prevent updating on each the charts and the MA. they are caught. i'll refresh the chart without success. That instrument's data is just caught. i will load the records using historic facts for the day then it updates the chart and MA but would not move.

Like Fred, the 'bad' connection once in a while causes the "unable to write cache data" also freezes my charts and MA from updating. it is level II streaming works. even though I delete the db>cache, newly recreated Workspace, repair DB, or Reset DB i will still get this error. on occasion, recreating the workspace will work. however of path this is no longer an awesome element for people to should keep doing.

i've read a number of the older NT7 & 8 posts on 'not able to jot down cache' simplest to locate that support asks for logs and traces however then would not go lower back to put up the solution, if there has been any. NT support does loads already but going returned to submit the solution would be very helpful in customers 'self helping' themselves. proper now i'm left questioning 'how'd you resolve it' for every submit. I can not trust how antique this hassle is and therefore amazed NT8 doesn't fix it. UC Browser Apk SHAREit Apk MX Player Apk
Last edited by patrisialobo; 06-02-2018 at 08:55 AM.
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Old 06-01-2018, 12:25 PM   #5
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patrisialobo, we will likely need your files via email support as there is typically not a 'one size fits all' solution for the general 'unable to write cache data' message which you, and others, have experienced. For example, a custom add-on could be causing the issue, or perhaps the cache or the data itself is corrupt, or maybe even you workspace or a window within it is the culprit. Having the unique information that is contained in your log and trace files regarding your specific PC and installation of NinjaTrader is critical most times in identifying the root cause of general error messages such as this one.

With that said, we may be able to learn some things by troubleshooting on the forums. Please answer these general questions:
  • What version of NinjaTrader 8 are you using? Please provide the entire version number. This can be found under Help -> About (Example: 8.0.X.0)
  • Are you able to reproduce the issue in safe mode?
So we can further diagnose your system, please delete your cache and start NinjaTrader in Safe Mode.To enable safe mode, please use the following steps:
  • Ensure NinjaTrader is shut down
  • Hold the CONTROL key and double click the NinjaTrader icon.
  • Keep the CONTROL key held down until you see the Control Center.
  • You can verify you are in safe mode by going to Help -> About.
Once NinjaTrader has started on just the control center, please connect to a data feed then open a new chart with no custom bar types/indicators/templates and test for issues.

If there are no issues on this new workspace, please try opening the previous workspace by going to the Control Center > Workspaces > Choose your workspace.

If there are no issues, restart NinjaTrader normally and test for issues.

If this reintroduces issues, I would suggest rebuilding your workspace, adding 1 indicator at a time. Please keep track of what indicators you add back in so that we can narrow down what indicator is causing the issue if the issue returns.

Please let me know the results of this test.

If you'd like to get more customized support based on the information in your files, follow Chelsea's instructions to contact us via email. Make sure to include a link to this forum thread and "1906767 ATTN Patrick G' in the email.
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