Can't Retrieve Logs Running in Docker on Windows

[pkscout]

OK, I acknowledge that I am probably the only person running NPVR in a Docker container on a Windows 10 host, but for some reason in this config trying to get the logs from the button in the web admin generates a 500 error.  Same Docker container running in Docker on my Mac works fine.  So it isn't NPVR or even the Docker container.  Sub, if you have a minute, could you give a description of how the logs are retrieved and zipped?  If I understood that I could at least troubleshoot some more. At the end of this, I'm fine if I can't get the logs using the web admin, and I'm hoping this particular config will only be for another month or two until I get a new NAS I can use with Docker.

So basically, please don't run NPVR from a Docker container on Windows 10. 

[sub]

I checked the code and can't see an obvious reason for it to fail. You could see if running the container with "docker run -it....", so that you can see the output, provides any useful clues like an error message when you ask for the logs. Alternatively, take at the log files themselves in /config/logs directory, to see what happens when you click the logs.

[pkscout]

I checked the code and can't see an obvious reason for it to fail. You could see if running the container with "docker run -it....", so that you can see the output, provides any useful clues like an error message when you ask for the logs. Alternatively, take at the log files themselves in /config/logs directory, to see what happens when you click the logs.

OK, I'm going to do a little bit of a no-no and post a log snippet.  I cannot stress enough how NOT important this is, as nobody should do what I'm doing. 

Code:

2020-03-23 15:52:53.109    [DEBUG][31]    Got request [::ffff:172.17.0.1]: /services/service
2020-03-23 15:52:53.109    [DEBUG][31]    method=system.logs
2020-03-23 15:52:53.109    [DEBUG][31]    parameters:
2020-03-23 15:52:53.109    [DEBUG][31]       method: system.logs
2020-03-23 15:52:53.109    [DEBUG][31]       format: json
2020-03-23 15:52:53.109    [DEBUG][31]       client_ip: ::ffff:172.17.0.1
2020-03-23 15:52:53.109    [DEBUG][31]       user_agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36 Edg/80.0.361.69
2020-03-23 15:52:53.109    [DEBUG][31]       host_callback: 172.16.1.5:8866
2020-03-23 15:52:53.109    [DEBUG][31]       sid: default
2020-03-23 15:52:53.109    [DEBUG][31]    Zipping logs...
2020-03-23 15:52:53.109    [INFO][31]    Flushing logs
2020-03-23 15:52:53.272    [ERROR][31]    System.ArgumentOutOfRangeException: The DateTimeOffset specified cannot be converted into a Zip file timestamp. (Parameter 'value')
   at System.IO.Compression.ZipArchiveEntry.set_LastWriteTime(DateTimeOffset value)
   at NShared.Extend.SystemRequestHandler.GetLogs(ServiceResponseStream serviceResponseStream, Dictionary`2 parameters)
   at NShared.Extend.PluginFactory.HandleRequest(ServiceResponseStream serviceResponseStream, Dictionary`2 parameters)
   at NPVR5.Controllers.ServicesController.HandleServiceRequest(String body, String contentType)

I don't get this error when running the same image on a Mac using Docker (and I get the log downloads).  I suspect it's some oddity of getting Docker running on Windows 10 Home.

[mvallevand]

If you change the tz of the docker to an earlier time zone like pt what happens

Martin

[sub]

Good info. I’ll check it in a bit.

[sub]

I'm not sure why that particular machine is failing, but I've added some protection around this for the next build. (this machine will end up creating a logs zip file where the file dates are probably all the current time, rather than the real times)

[pkscout]

Let's call this done then. It really is something with running Docker on Windows 10. I have a python script that uses a log roller, and from time to time the log will roll a file to 1969-12-31, which basically means 0 was returned for the date. It's not consistent, although the log problem with the NPVR logs is. I never have a problem with NPVR knowing what time it is for recordings, showing the guide, etc. so I'm not going to pull any hair out over this. Thanks for looking into it.

[pkscout]

Just a followup.  I was having some other issues and tried to update Docker, but the little hack to trick the installer into thinking it was running on Windows 10 Pro (instead of Home) doesn't work anymore with the current Windows 10 version. So I bit the bullet and upgraded to Windows 10 Pro and updated Docker.  The problem with the logs not downloading went away, so there was either an issue with Docker on Windows or the fact that I was trying to run in on Windows 10 Home.  Mostly just posting this here in case someone stumbles on this thread with a similar issue.

[sub]

Just a followup.  I was having some other issues and tried to update Docker, but the little hack to trick the installer into thinking it was running on Windows 10 Pro (instead of Home) doesn't work anymore with the current Windows 10 version. So I bit the bullet and upgraded to Windows 10 Pro and updated Docker.  The problem with the logs not downloading went away, so there was either an issue with Docker on Windows or the fact that I was trying to run in on Windows 10 Home.  Mostly just posting this here in case someone stumbles on this thread with a similar issue.

That's weird - good to know though. Good find.