Re: [Condor-users] PASSWD_CACHE_REFRESH in 6.9.4?

[Stuart Anderson <anderson@xxxxxxxxxxxxxxxx>]

Dan,
	Are any of the following 6.8 examples on the large condor pool tuning
page still need in 6.9.4, i.e.,

Example Configuration Tuning for 6.8

# Increase various timeouts and housecleaning intervals:
SHADOW_TIMEOUT_MULTIPLIER=4
STARTER_TIMEOUT_MULTIPLIER=4
TOOL_TIMEOUT_MULTIPLIER=4
SCHEDD_MIN_INTERVAL=80
PERIODIC_EXPR_INTERVAL=400


Thanks.


On Wed, Oct 10, 2007 at 10:05:15AM -0500, Dan Bradley wrote:
> 
> Actually, PASSWD_CACHE_REFRESH does not accept expressions.  It requires 
> a plain integer.  The only change in semantics is that in 6.9.2, we 
> added better validation of input.  Previously, 
> PASSWD_CACHE_REFRESH=123+blahblah would silently result in a value of 
> 123 being used.  In 6.9.2+, condor complains and falls back to the 
> default value.
> 
> Therefore, the advice that I added to the web page on administering 
> large condor pools was incorrect.  Sorry about that!  I have corrected 
> that.  Anyway, in 6.9.4, the randomization happens internally, so 
> hopefully there is no need to worry about it.
> 
> Here's the web page we are talking about, for others who are interested:
> 
> http://www.cs.wisc.edu/condor/CondorWeek2007/large_condor_pools.html
> 
> --Dan
> 
> Steffen Grunewald wrote:
> 
> >Has the semantics of PASSWD_CACHE_REFRESH changed between 6.9.3 and 6.9.4?
> >I have been running some nodes with
> >PASSWD_CACHE_REFRESH = 900 + $RANDOM_INTEGER(0,300)
> >(the suggestion from the PCW2007 talk on large pools was
> >PASSWD_CACHE_REFRESH = 300 + $RANDOM_CHOICE(0,10,20,30,40,50,60,70,80,90,100)
> >but with a few hundreds of nodes I wanted to add more randomness)
> >which caused no problems with 6.9.3, but 6.9.4 complains.
> >Of course, with the randomness introduced internally, the random part is
> >not necessary anymore...
> >(Needless to say that arithmetic expressions in COndor still scare me.)
> >
> >Cheers,
> > Steffen
> >
> >  
> >
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-- 
Stuart Anderson  anderson@xxxxxxxxxxxxxxxx
http://www.ligo.caltech.edu/~anderson