MeGUI hangs on simultaneous mux & video jobs

Brought to you by: charleski, doom9, kurtnoise13, sharx1976, zathor

#971 MeGUI hangs on simultaneous mux & video jobs

Milestone: General

Status: pending

Owner: nobody

Labels: None

Priority: 5

Updated: 2023-04-18

Created: 2022-06-17

Creator: Vampik

Private: No

I queue multiple 2-pass video encoding jobs, which consists of three actual jobs: video (1-st pass), video (2-nd pass) and mux job.
Here is the queue for example:

first video (1-st pass)
first video (2-nd pass)
first mux
second video (1-st pass)
second video (2-nd pass)
second mux
When the 2-nd pass of the first video is completed, MeGUI launches 2 jobs simultaneously: first video mux job and second video 1-st pass job.
At this point MeGUI hangs and doesn't respond.

As a workaround I can add following rule: Muxer Jobs + Video Jobs <= 1 Job(s) in parallel and everything works fine.

This happens when using MeGUI build 2928.
Build 2924 didn't have this bug.

Discussion

Zathor - 2023-03-30

status: open --> pending
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Zathor - 2023-03-30

Thanks for the report. I am not able to reproduce that. Do you still have that issue?

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Vampik - 2023-03-30

Yes, I still have this issue. And I also got hangs when an indexer job starts running during the video job, so I also had to add Indexer Jobs + Video Jobs <= 1 Job(s) in parallel rule.
It seems that it happens after switch to .NET 4.8.
Also it may be worth mentioning that video files are stored on a network (SMB) drive. I didn't try to reproduce the issue with files on local drives.

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Jorge - 2023-04-16

@zathor i have the same bug.

I have a list of jobs in Queue and then 2 video jobs start at the same time.

I don't have a problem with this because the computer does have enough CPU and RAM resources for processing, but it is something that has only been present in recent stable versions.

Last edit: Jorge 2023-04-16

Captura de pantalla 2023-04-16 173653.png

Captura de pantalla 2023-04-16 173940.png

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- Zathor - 2023-04-17
  
  Are you running anything by any chance also from SMB drive/Share?
  
  I was able to reproduce it sometimes using a very slow system when the files are on a mapped network drive.
  
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  - Jorge - 2023-04-18
    
    No, everything runs only on NMVe drives, and I use stable MEGUI.
    
    When I enter a new Job, it assigns an Id that already existed, but even deactivating the option to delete complete jobs, the bug continues.
    
    As long as there is a video job, it runs them simultaneously because they start at almost the same thousandth of a second.
    
    Last edit: Jorge 2023-04-18
    
    Captura de pantalla 2023-04-18 101501.png
    
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