Re: [HTCondor-users] JobWrapper fails to execute after upgrade to 8.8.11

[max.fischer@xxxxxxx]

Hi Greg, all,

Setting

MOUNT_UNDER_SCRATCH = ""

on the worker did it! Thanks a lot!

We were using the default setting, which changed from v8.6 to v8.8.

Could this be worth adding to the "Upgrading from the 8.6 series to the 8.8 series of HTCondorâ  [0] documentation? The error message really is nonindicative for the issue/cause.

Cheers,

Max

[0]

https://htcondor.readthedocs.io/en/v8_8/version-history/upgrading-from-86-to-88-series.html

On 24. Nov 2020, at 17:14, Greg Thain <gthain@xxxxxxxxxxx> wrote:

On 11/24/20 10:06 AM, max.fischer@xxxxxxx wrote:

Hi Greg, all,

The EXECUTE is /tmp/condor_execute

Try setting

MOUNT_UNDER_SCRATCH =

in the worker node config file

-greg

Some more working points:

- Scientific Linux release 7.8 (Nitrogen)

- I tried several 8.8 versions (8.8.10, 8.8.9, 8.8.6, 8.8.0) but encountered the same issue. Moving back to 8.6.13 fixes the issue. Re-installing the machine still replicates the same behaviour (8.8 fails, 8.6 works).

- Issue occurs with and without job wrapper. See e.g. [0] of launching an interactive job without wrapper.

- Issue occurs with and without cgroups.

- I have a suspicion this will turn out to be something *really* embarrassing for our setupâ :D

Cheers,

Max

On 24. Nov 2020, at 16:33, Greg Thain <gthain@xxxxxxxxxxx> wrote:

Where is your execute directory located?  Is it under /tmp, /var/tmp or other directory that is getting privately mapped for the job?

-greg

On 11/24/20 9:27 AM, thomas.hartmann@xxxxxxx wrote:

do symlinks might be a problem? 
I.e., with /bin --> /usr/bin somehow(??) colliding with the wrapper's shebang 

On 24/11/2020 03.27, dmaziuk via HTCondor-users wrote: 

On 11/23/2020 12:11 PM, mdidomenico4@xxxxxxxxx wrote: 
... i'm not able to discern why you 

might get 'bad interpreter", thought maybe it was a bogus message 
masking something else 

if job's chroot'ed and there's no /bin maybe? -- just a thought. 

Dimitri 

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