First, apologies. ÂI apparently wasnât actually subscribed to
this list until yesterday, so I canât really âreplyâ to the
thread I would like to. ÂBut the subject line is the thread Iâm
trying to reply to.
Greg, we have either more data for Matthiasâs bug report, or
a similar but subtly different problem. ÂPlease let us know if
you want more information.
Starting about a week ago we had a user seeing her jobs held
with messages such as this:
007 (42052443.000.000) 2021-09-01 10:30:09 Shadow exception!
Error
fromÂ
slot1_4@xxxxxxxxxxxxxxxxxxxxxxxx:
Singularity test failed:INFO: ÂÂÂCould not find any nv files on
this host!
0
Â- ÂRun Bytes Sent By Job
2084
Â- ÂRun Bytes Received By Job
If I directly test the same singularity image from the
command line, I see:
[joshua.willis@ldas-osg ~]$ singularity test --nv
/home/rebecca.ewing/observing/4/dev/builds/gstlal_dev-082721 ;
echo $?
INFO: ÂÂÂCould not find any nv files on this host!
INFO: ÂÂÂNo test script found in container, exiting
No test found in container, executing /bin/sh -c true
0
That is, an additional warning line, but the error code of
the test is actually still zero.
If I omit the â--nvâ I donât get the message about not
finding nv files (unsurprisingly).
We think that last point might be relevant because James can,
with his standard test jobs, reproduce the error at CIT when
submitting from either HTCondor 9.0.4 or 9.0.5, and singularity
3.8.1. ÂHowever those same jobs succeed when they come into CIT
from OSG, even though the version of singularity is the same.
ÂSo we suspect that maybe âsingularity testâ is not always
invoked with âânvâ, but perhaps itâs something else.
If you can confirm that this is the same problem Matthias
saw, then we will happily await the patch for testing.
ÂOtherwise we wanted to alert you that there may be a different
but similar problem.
Cheers,
Josh
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