Running Win10, upgraded several months ago from Win8.1; running the latest stable version of Duplicati. For several weeks now, I’ve noticed that when I come back to my PC after several days, often the Duplicati client has silently either crashed or quit on me (there’s no crash message, no error, no warning, no log file that I know of).
I’m unclear whether this corresponds to my upgrade to Win10 or not, but I’ve definitely updated Duplicati since then. It runs fine otherwise (i.e. backups complete with no errors, scheduled jobs go off about as they should, etc).
Any suggestions appreciated. Sorry in advance if I’m not super responsive, I have 2 small kids at home now, so there can be stretches of a few days at a time where I don’t get to so much as sit down at my PC.
I have recently fixed a potential resource leak with the TrayIcon. This fix is only in Canary builds for now, but it is a leak that could build up over time, so it sounds a bit like your scenario.
I assume you are running the TrayIcon.
But even in this case, there should be a message in the Windows EventViewer detailing the crash.
If not, can you try for testing to start Duplicati from a commandline and then leave the commandline window open? This should emit some additional errors if Duplicati somehow exits out-of-order.
To do so, pres Win+R, type “cmd” and press enter.
Then type (or copy):
And press enter. This should start Duplicati and leave a blinking prompt. Just leave the window, and if it crashes, there should be some text in the window.
I’ve done stuff with Event Viewer in the past, but i’m having no luck discerning any entries for Duplicati among the thousands of things listed (and of course I don’t have a solid reference for when the most recent crash was, precisely). If you have a hint for me here, i’d appreciate it.
In the meantime I’ll try your trick for launching it via a command prompt. Thanks
I immediately get an error message of “no database encryption key was found”. The first time I tried it, it immediately went on to report an error, so I assumed this was related, but the second time I tried it, it proceeded to work anyway after this advisory (without the following error). This is the error message I got, which repeated a few times:
That sounds really odd. So it seems to require an encryption key, but can start without one?
The should not be possible.
Do you use database encryption or not?
It is something we should fix, but it requires a larger overhaul of the webserver internals.
It should not cause the TrayIcon to crash though, it will just give a 500 error to the UI that is attempting to get the current schedule.
In Event Viewer, the default location is Windows Logs → Application. On the right bar, a Filter by source should help get Duplicati issues, but they’re often under .NET Runtime.
Isn’t this a usual warning?
is what I thought is normal until one has yielded to the nag and done as asked.
My bad for the inclarity of my quoted comment. It looks as if you decoded my meaning correclty, though.
To verify: I was originally describing 2 consecutive attempts to run it from the CLP; both times I got the “encryption” warning, but the first time, I got the terminating error (the part starting with the red-highlighted “FAIL” text), and the second time (with no other changes on my part), I did not get that error, and the attempt went on to work, despite still receiving the “encryption” message.
I see now. The warning message about encryption is actually not related to the crash message, it shows every time. You can see that it just warns that the database is not encrypted.
The crash itself has been fixed in source and latest canary builds:
But this should not be a problem that causes crashes when running, because it is a race during initialization. As soon as it has started, that particular problem will not be triggered again.
It came back when you ran Duplicati. Below you can see it talking from the background:
C:\Program Files\Duplicati 2>Duplicati.GUI.TrayIcon.exe
C:\Program Files\Duplicati 2>No database encryption key was found. The database will be stored unencrypted. Supply an encryption key via the environment variable SETTINGS_ENCRYPTION_KEY or disable database encryption with the option --disable-db-encryption
Server has started and is listening on port 8200
An error occurred on server tear down: System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'IServiceProvider'.
at Microsoft.Extensions.DependencyInjection.ServiceLookup.ThrowHelper.ThrowObjectDisposedException()
at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(ServiceIdentifier serviceIdentifier, ServiceProviderEngineScope serviceProviderEngineScope)
at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(Type serviceType)
at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
at Duplicati.Library.RestAPI.FIXMEGlobal.get_UpdatePoller()
at Duplicati.Server.Program.get_UpdatePoller()
at Duplicati.Server.Program.<>c.<Main>b__60_10()
at Duplicati.Server.Program.Main(String[] _args)
C:\Program Files\Duplicati 2>
The stack trace is the messy TrayIcon right-click Quit. This time, another Enter got second prompt, but sometimes (for unknown reasons) I have to repeat Enter, try Ctrl-C, and so on.
Unexpected error: System. ComponentModel.Win32Exception (0x80004005): The operation completed successfully.
at Avalonia.Win32.Interop.Win32Icon.CreateIcon(Bitmap bitmap, PixelPoint hotSpot) at Avalonia.Win32.Interop.Win32Icon..ctor(Win32Icon original, PixelSize size)
at Avalonia.Win32.TrayIconImpl.UpdateIcon(Boolean remove)
at Avalonia.Controls.TrayIcon.OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
at Avalonia.Avalonia0bject.RaisePropertyChanged[T](AvaloniaProperty'1 property, Optional'1 oldValue, BindingValue'1 newValue, BindingPriority priority, Boolean isEffectiveValue)
at Avalonia.PropertyStore.EffectiveValue'1.NotifyValueChanged(ValueStore owner,
at Avalonia.PropertyStore.EffectiveValue'1.SetAndRaiseCore(ValueStore owner, StyledProperty"1 property, at Duplicati.GUI.TrayIcon.AvaloniaApp.SetIcon(TrayIcons icon)
StyledProperty 1 property value, BindingPriority
I am pretty sure this is the problem with not caching the status image. For some reason, the image loader for the TrayIcon would re-load the images every time some update message is sent. In some cases this would exhaust the number of handles available for the process and cause it to crash because it cannot set a new status image.
It has been fixed in the latest canary builds (I assume this is for 2.1.0.5)?
The WIndows Command prompt is a bit odd when having a “background” process attached, but it usually works if you press enter a few times, as that clears the buffer and shows the prompt.
Yes, I’ve been using the stable version lately, for fear of DB corruption among one of my “important” big backup sets. I’ve used the canary version here and there in the past - if the current one is fairly stable I’d be willing to try it out in order to try to mitigate this crash.
Cool - I’ll try that next time. The one time I caught it thus far though, CTRL+C worked instantly to bring back the prompt after the crash.
Hmm, maybe I’m having the same issue on my dad’s PC. For whatever reason, his TrayIcon process presumably crashes every few days. (It disappears and no more backups run.) This is with 2.1.0.4 or 2.1.0.5 (I forget). I don’t have the issue on any of the other computers where I run Duplicati.
I might try the cmd prompt idea, but my dad is likely to just close the window if he sees it…
