Re: [HTCondor-users] core dump in python bindings

[Michael Thomas <wart@xxxxxxxxxxx>]

Hi Tim,

Thanks for the tip.  It turns out that the it was as simple as changing:

import htcondor2 as htcondor
import classad2 as classad

...and it seems to run about 5x faster than the v1 bindings when running 
a query across the >200k job ads at CIT.

Regards,

--Mike

On 8/25/25 4:07 PM, Tim Theisen wrote:
> Which version of the Python bindings are you using?
>
> For HTCondor 25, we plan to only have the newer versions of the Python 
> bindings available. To use the newer python bindings, where you import 
> htcondor, import htcondor2 as htcondor. Also, where you import classad, 
> import classad2 as classad.
>
> If you find a defect in the original bindings, we will not fix it. 
> However, let us know if the htcondor2/classad2 bindings have issues.
>
> ...Tim
>
> On 8/25/25 10:22, Michael Thomas wrote:
> > I'm still trying to come up with a simple reproducible test case for 
> > this, but wanted to bring it up in case it's a known issue or sign 
> > that I'm doing something wrong.
> >
> > I'm using the htcondor-24.10.2 python bindings to iterate over all 
> > user jobs and job slots to calculate the total requested memory for 
> > all jobs. ÂHowever, at some point the value returned by 
> > collector.query.eval('RequestMemory') seems to return an 
> > classad.ExprTree object, and when i try to do any debugging on that 
> > object (using repr() or __str__ to inspect it) I get a segfault.
> >
> > This is code that I inherited from a now-defunct outside project, so 
> > my understanding of what it's doing may be slightly flawed.
> >
> > Are there any known issues with printing out ExprTree objects?
> >
> > I'll continue to work on a simplified test case, and try to capture a 
> > core dump if possible.
> >
> > --Mike
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