Re: [HTCondor-users] Need help debugging HIBERNATE/ROOSTER

[Steffen Grunewald <steffen.grunewald@xxxxxxxxxx>]

On Tue, 2025-11-18 at 13:11:24 -0600, HTCondor Users Mailinglist wrote:
> > What makes "DaemonStartTime" break the expression above, once evaluation gets
> > that far?
> 
> 	It might be coincidence, given the size of our manual, but
> `DaemonStartTime` is _not_ listed as a machine ClassAd* attibute.  The
> manual** specifies that HIBERNATE is evaluated in the context of "each slot
> on the machine", which I presume to mean a machine ad.

DaemonStartTime, among other candidates for telling me how long this system might
have been powered on,  is returned by `condor_status -l | grep Time`, and it looked
tempting. 'time()-DaemonStartTime' returned useful values on all slots/machines
I could reach, so indeed I didn't suspect it'd be something taken out of thin air.

> *: https://htcondor.readthedocs.io/en/latest/classad-attributes/machine-classad-attributes.html
> **: https://htcondor.readthedocs.io/en/latest/admin-manual/configuration-macros.html#HIBERNATE
> 
> So I expect that if you actually `debug()` that expression,
> `DaemonStartTime` will be undefined.

It may indeed be - in that special situation only.
Whatever the cause, I've found a workaround and added a line or two to my notes.

So: thanks, 
 Steffen