[HTCondor-users] What happens of the USER_JOB_WRAPPER doesn't exec?

[KÃhn, Max (SCC) <max.fischer@xxxxxxx>]

Hi all,

The docs for the USER_JOB_WRAPPER [0] currently state the wrapper cannot persist while the job runs:

> This wrapper script must ultimately replace its image with the user job; thus, it must exec() the user job, not fork() it.

However, we would really, really like to use one of forkâs brethren for managing and monitoring stuff while the job runs.

Is this line from the docs still authoritative? How bad would it be if we donât follow it? Has someone (*gasp*) done this already and still lives to tell the tale?

Cheers,
Max

[0]
https://htcondor.readthedocs.io/en/latest/admin-manual/configuration-macros.html#USER_JOB_WRAPPER

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