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Re: [Condor-users] PASSWD_CACHE_REFRESH in 6.9.4?

For 6.9.4, you should not have to set any of the config knobs mentioned below. On very busy submit machines, I have found that with 6.9.4 (and all previous versions), it is advisable to set SHADOW_RENICE_INCREMENT=0. This will be the default in 6.9.5.


Stuart Anderson wrote:
	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:


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:



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
(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.)


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