Job Action - Delete hangs

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Originally reported by: Michael Purdy (Bitbucket: mdpurdy, GitHub: Unknown)

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Failed to mark job as finished on running instance of motioncorr. And, after manually killing the motioncorr jobs and restarting, Job Action > Delete caused GUI to hang.

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• Bitbucket: https://bitbucket.org/tcblab/relion2-beta/issue/9

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Original comment by Sjors Scheres (Bitbucket: scheres, GitHub: scheres):

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Hi Michael, what do you mean by "Failed to mark job as finished on running instance of motioncorr."? The job was running and you tried to mark it as finished? Was this before or after the first micrograph was finished? The idea of killing a running job is OK, but you'd just delete it from the GUI. Anyway, the GUI shouldn't hang. So, to confirm: your order of actions was: submit, mak-as-finished, kill, delete?

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Original comment by Matt Iadanza (Bitbucket: attamatti, GitHub: attamatti):

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I have a similar issue. A job failed to start because of errors, I marked it finished and got the message that perhaps I wanted to delete it instead. The job is now in finished jobs but the GUI hangs when I try to delete it.

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Original comment by Marcus Fislage (Bitbucket: mfislage, GitHub: mfislage):

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I had a similar issue. One job got killed with an error message but did not disappear from the running job tab. After hitting mark as finished it moved to the finished job. If I tried to move it into the trash the gui gui hung up.
I solved it by marking it again as finished job while it was in the finished job window and then I could delete the job

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Original comment by Michael Purdy (Bitbucket: mdpurdy, GitHub: Unknown):

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I started motioncorr with incorrect syntax to use all four GPUs, so I wanted to stop the job and restart with all GPUs. I thought the correct way to do this was "Job Actions > Mark Job as Finished". I then tried "Job Actions > Delete" and the GUI became unresponsive. I killed the GUI and restarted. Again, when I tried "Job Actions > Delete" again the GUI became unresponsive. The GUI reproducibly hangs when I select the finished job "Motioncorr/job002" and use Job Actions > Delete. I once got a message in the terminal "you can only delete existing jobs...".

When I select a running job or a different finished job (e.g., Import/job001) and execute Job Actions > Delete, the GUI functions correctly.

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Original comment by Sjors Scheres (Bitbucket: scheres, GitHub: scheres):

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I've fixed this in 2.0.b5. Thanks for the feedback.