How To Ban Machine

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Known to work with HTCondor version: 7.0

Suppose jobs are mysteriously failing on a particular machine and you suspect some kind of hardware problem (e.g. memory corruption). You can turn HTCondor off until the problem is solved, but just so no mistakes are made, it may also a good idea to block the machine from joining the HTCondor pool, in case HTCondor gets restarted prematurely.

Here is what you should put in the HTCondor configuration visible to the collector:

# 2008-04-27: badmachine has a hardware problem, so I am temporarily blacklisting it
HOSTDENY_WRITE = $(HOSTDENY_WRITE) badmachine.domain.name

Then issue

condor_reconfig -full

This work is supported by NSF under Cooperative Agreement OAC-2030508 as part of the PATh Project. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF. Site built using CVSTrac.