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Re: [Condor-users] Only run when logged of?
- Date: Wed, 29 Sep 2010 09:11:25 -0400
- From: Matthew Farrellee <matt@xxxxxxxxxx>
- Subject: Re: [Condor-users] Only run when logged of?
On 09/29/2010 08:53 AM, Dave STREET wrote:
I got a bit stuck with this.
I added the following lines to my condor_local.config
STARTD_CRON_JOBLIST = LOGINCHECKER
STARTD_CRON_LOGINCHECKER_PREFIX = LoginChecker
STARTD_CRON_LOGINCHECKER_EXECUTABLE = c:\condor\login.vbs
STARTD_CRON_LOGINCHECKER_PERIOD = 1m
STARTD_CRON_LOGINCHECKER_MODE = Periodic
STARTD_CRON_LOGINCHECKER_RECONFIG = True
START = $(LoginCheckerUsersLoggedIn) =!= True
but I don't ever see this running in the "StartLog" file. only an error
about the syntax "=!= True"
I tried removing this to have only
START = $(LoginCheckerUsersLoggedIn)
but still get nothing and condor does not start?
Are there any other config entries that I need to make to get this
working. Currently all out Startd setting in the global config are as
default set to always run. Or are there any config changes I need to
make to enable Startd_cron?
Quick comment. I've not been following your entire thread, but you
START = LoginCheckerUsersLoggedIn =!= True
There are a few layers of processing at work here. First, the config
layer (Condor params) is reading the rhs and expanding it. The config
layer expands $() to the rhs of other configs, e.g.
A = 1
B = $(A)
And you get B = 1.
Second, the config expanded value is then turned into a ClassAd
expression, start policy. The policy evaluation follows ClassAd rules,
which actually don't use $() at all for expansion.
Now, if LoginCheckerusersLoggedIn is being set by STARTD_CRON, then it
is an attribute in the ad where your START expression is evaluated via
ClassAd rules, not via configuration. So, don't use $() for it.
Side note, I bet the Startd (StartLog) is complaining about the START
policy being equal to "=!= True" because $(LoginCheckerUsersLoggedIn) is
expanding on the config level to the empty string.