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MrMC deleted all my app data after latest update

Any issues that are tvOS specific
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willynanita
Posts: 11
Joined: 04 Dec 2015, 13:30

MrMC deleted all my app data after latest update

Post by willynanita » 17 Dec 2017, 20:26

So I had MrMC all set up with profiles, video calibration settings, network shares, video libraries and everything until the latest update came in automatically and deleted the app settings and it started as new.

If I try to make changes to the video calibration, the changes don't hold and I have to set them every time I start the app.

I really wanted to give this app a try and forget about all the issues with side loading Kodi to the Apple TV, but at this stage it is unusable. I use Kodi mainly because skins (MrMC doesn't have too many, but the latest one is very nice).

Any help?

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davilla
Team MrMC
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Joined: 26 Oct 2015, 17:01

Re: MrMC deleted all my app data after latest update

Post by davilla » 17 Dec 2017, 22:01

Well, we don't delete app settings when updating. Not sure what happened as we never see that when we roll versions.

I assume you mean 3.3.1. It should be retaining video calibration. It was a regression from 3.2.

Which AppleTV ? 4 or 4K ?

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willynanita
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Joined: 04 Dec 2015, 13:30

Re: MrMC deleted all my app data after latest update

Post by willynanita » 18 Dec 2017, 03:00

It's an Apple TV 4.

I'm sure it deleted all data I had.

I noticed tonight that the video calibration is retained. I will try and add all my library and profiles again and see what happens.

Thanks.

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davilla
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Joined: 26 Oct 2015, 17:01

Re: MrMC deleted all my app data after latest update

Post by davilla » 18 Dec 2017, 03:36

v3.3.1, verified on appletv 4k, video calibration is retained across a force quit and re-launch.

shadow.jedi
Posts: 10
Joined: 05 Dec 2015, 22:16

Re: MrMC deleted all my app data after latest update

Post by shadow.jedi » 18 Dec 2017, 08:22

I had the same problem all data deleted after update on my ATV 4K
was working great then couple days later logged in and all movies tv shows all data gone.
linked through smb to my netgear nas.
reloaded all again and downloaded as data again then next day logged back in and all gone again.
hope the new update fixes that problem

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davilla
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Joined: 26 Oct 2015, 17:01

Re: MrMC deleted all my app data after latest update

Post by davilla » 18 Dec 2017, 13:48

We have no control over saved movie/tv metadata. The AppleTV only has 500k of persistent storage for individual Apps. Metadata from movie/tv is too large to save there so it must go to a different area. This area is and will be purged by tvOS, mostly when tvOS updates.

To preserve metadata from movie/tv, we highly recommend moving to mysql running on the NAS serving content. Or running a plex/emby server.

All I can say is, it's not us doing it and there is nothing we can do to prevent tvOS from purging. One thing that can help is never force quit MrMC. The area we use for large storage will never be purged as long as we are running and that includes being moved to the background. When MrMC is in the background, we use very little system resources and tvOS will in fact suspend us resulting in zero CPU usage.

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willynanita
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Joined: 04 Dec 2015, 13:30

Re: MrMC deleted all my app data after latest update

Post by willynanita » 18 Dec 2017, 18:45

davilla wrote:
18 Dec 2017, 13:48
To preserve metadata from movie/tv, we highly recommend moving to mysql running on the NAS serving content.
Can I do this if the library is on a Windows PC? All my shares are on my W10Pro PC.

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amet
Team MrMC
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Joined: 26 Oct 2015, 16:59

Re: MrMC deleted all my app data after latest update

Post by amet » 18 Dec 2017, 18:47

sure, click on -> mysql and you have some instructions on how to do it there

Bobrupp1
Posts: 1
Joined: 31 Dec 2017, 01:28

Re: MrMC deleted all my app data after latest update

Post by Bobrupp1 » 31 Dec 2017, 01:37

Hello

Are you going to leave this bugreport like this?
My ATV4 deleted all data after the update 17 or 18 dec ...

All movie thumbs, info, gone....
Tried to reinstall, same again.... it updates everything, But after restart of ATV... all gone.

Is this a new feature or a bug?

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davilla
Team MrMC
Posts: 2803
Joined: 26 Oct 2015, 17:01

Re: MrMC deleted all my app data after latest update

Post by davilla » 31 Dec 2017, 01:58

If you want to guarantee retention, you must use an external database like mysql. We really have zero control over when tvOS will decide to purge.

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