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Re: [Condor-users] Regular Expressions in class ads comparisons?
- Date: Wed, 27 Oct 2004 17:11:00 +0100
- From: Angel de Vicente <angelv@xxxxxx>
- Subject: Re: [Condor-users] Regular Expressions in class ads comparisons?
OK, thanks a lot, I will wait.... :-)
Angel de Vicente
Alain Roy writes:
> >rereading my post I realize that is misleading. I know I can use the NiceUser
> >attribute for this particular case, but I'm interested in doing partial
> >string matches. Is this possible?
> Short answer:
> Long answer:
> There are two versions of the ClassAd library. You see a ClassAd every time
> you do "condor_q -l" because it gives a ClassAd for each job.
> All shipping versions of Condor use the so-called "old ClassAd" library,
> which is very straightforward, but also a bit simplistic. It does not
> support partial string matches in any way: there is just equality and
> Internally, we have a new ClassAd library. If you look at any of our papers
> on ClassAds, you'll see that it discusses new ClassAds. New ClassAds are
> really much nicer than old ClassAds in so many ways. Among other things,
> you can do regular expression matching with strings, but that is about
> 1/100th of the improvements in new ClassAds.
> Switching to the new version of ClassAds is non-trivial. The new features
> are not backwards-compatible, and there are many technical issues in
> switching. We hope to switch in the future, but I can't give you a time
> line for when we might switch. Sorry!
> Condor-users mailing list
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