[Condor-users] FQDN to avoid specific machine(s)

[Michael Lanham <mlanham@xxxxxxxxxx>]

Hello,

I need to avoid three machines in my department's cluster that don't have supporting software installed. 
I am using the following requirements line

requirements	= ((ARCH == "INTEL" || ARCH=="X86_64") && \
			 ((OPSYS == "WINNT52") || (OPSYS == "WINNT61") || \
			 (OPSYS == "WINDOWS")) && \
			 (TARGET.Machine =!= lingo.foo.bar.edu) && \
			 (TARGET.Machine =!= bigfoot.foo.bar.edu) && \
			 (TARGET.Machine =!= zaphod.foo.bar.edu))

but this is not working. The jobs submit fine, but they still hit these three machines. 

I re-read the manual and think I discovered I had omitted the quotation marks around the machine names--assuming they are considered strings when doing the comparison.  Archives have examples with quotes and without quotes.  I have confirmed with condor_q -l that the machines names are advertising in all lower case, since =!= is case preserving (BTW, pro-ed question: whats the difference between case preserving and case sensitive?).

I am also not clear on the notation in the manual that the string is supposed to be the FQDN of the machine.  In DNS land, a FQDN requires a trailing period at the end (e.g. lingo.foo.bar.edu. [note the trailing period]).  Is that true in Condor submit land as well? Archives show examples without trailing periods....are they correct?

Summary...
1. Do I surround FQDN machine names with quotes to either match or not match?
2. Does Condor expect to have a DNS-style FQDN with trailing period?

R/
Mike Lanham


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