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Re: [HTCondor-users] Increasing maxpre for a running DAG
- Date: Fri, 19 Sep 2014 10:22:50 -0500 (CDT)
- From: "R. Kent Wenger" <wenger@xxxxxxxxxxx>
- Subject: Re: [HTCondor-users] Increasing maxpre for a running DAG
On Mon, 15 Sep 2014, Branden Timm wrote:
I'm wondering if it's possible to increase the maximum number of pre
scripts for a DAG after it has been submitted. I was doing some
troubleshooting and lowered maxpre to 1, and now that there are many jobs
running in the queue that has become a bottleneck. I'd like to let the
current jobs finish, but also increase maxpre so I can get more jobs in the
Is there any way I can do this without halting the dag, waiting for the queue
to drain, and then resubmitting with a new maxpre value?
We have in mind implementing a "clean" way to do this, but for right now
there's a kludgey way, if you set maxpre in a config file rather than on
the condor_submit_dag command line.
Here's what you do:
1) condor_hold the condor_dagman job.
2) Edit your config file to have the new maxpre value.
3) condor_release your condor_dagman job.
(Note that command-line-specified values override config file-specified
values, so if you did -maxpre <n> on the condor_submit_dag command line,
this won't change anything.)