Re: [HTCondor-users] File last modification time or job last write() attribute?

[Michael V Pelletier <Michael.V.Pelletier@xxxxxxxxxxxx>]

From: Iain Bradford Steers <iain.steers@xxxxxxx>
Date: 05/25/2016 01:37 PM

> Hi Michael,
> 
> Iâm not aware of an existing classad attr that gives that information.
> 
> In theory condor_chirp could be used to update a timestamp of the
last 
> file write to those files.
> 
> Scalability would have me concerned but perhaps you could register
an 
> inotify watcher in the user_job_wrapper and have a condor_chirp call
as 
> part of the inotify callback.
> 
> Cheers, Iain

The inotify idea is interesting, though I would definitely
see scalability
challenges with that approach. Wouldn't want to chirp
on every write, that's
for sure. The 5-minute interval of the update_job_info
hook seems
like it would address scalability concerns but still
keep enough
granularity to make the data useful in expressions.
But being able to do
it without occupying the HookKeyword would be handy
too.

Thanks for the suggestion!

        -Michael Pelletier.