Re: [HTCondor-users] DAGman: job info propagation and delayed child jobs with still active parents possible?

[Greg Thain <gthain@xxxxxxxxxxx>]

On 11/25/25 09:46, Thomas Hartmann wrote:
> Hi all,
>
> while a DAG is static(?), is there a way to propagate information (by 
> class ads or so) from a running parent job to child jobs started 
> underneath it?


Thomas:

Yes! Check out DAGman "provisioner nodes" ( 
https://htcondor.readthedocs.io/en/latest/automated-workflows/dagman-advance-functionality.html#provisioner-node 
), which are designed to do just this. DAGman will start a provisioner 
node before all other nodes in the dag, wait until the job in the 
provisioner node uses condor_chirp to tell dagman that it is ready, and 
then and only then will dagman start the remainder of the jobs. When 
the last non-provisioner node has finished, dagman will then condor_rm 
the provisioner node.

-greg