HTCUpgrade

Overview

We plan to upgrade HTCondor from version 8.9 to 9.0.
As it is a major change, it will require a complete reinstallation of all services.
The main benefits of the new version is to be compatible with tokens, the replacement of certificates for GRID authentification.

Plan

As of 04/07, already 70% of job slots have been migrated.
Most of GRID jobs are already using the new version.

For you to have a more transparent experience during this upgrade, please always use mhort.iihe.ac.be or mlong.iihe.ac.be to connect to the cluster.

• Monday 8PM
  • m1 will be excluded from mshort
  • m4/m5 will be excluded from mlong

• Tuesday 8PM
  • m1/m4/m5 will not be accessible anymore and will be reinstalled

• Wednesday 12AM
  • m2/m3 will be excluded from mshort
  • m6/m7 will be excluded from mshort
  • mshort will lead to upgraded HTC on m1
  • mlong will lead to upgraded HTC on m4/m5

• Wednesday 8PM
  • m2/m3/m6/m7 will not be accessible anymore and will be reinstalled

How to keep access to your jobs

As the 2 HTCondor version will be live in parallel, you will still be able to manage your jobs on the old HTC version from the upgrage mX machines (and vice-versa).

• Old HTC version:

condor_q <==> condor_q -n schedd01 <==> condor_q -pooltestumd-htcmaster.wn.iihe.ac.be -name schedd01

• New HTC version:

condor_q <==> condor_q -n schedd03 <==> condor_q -pool cm.wn.iihe.ac.be -n schedd03

So once the mX machines are upgraded, you will be able to access the old HTC verion cluster with:

condor_q -pooltestumd-htcmaster.wn.iihe.ac.be -name schedd01

Or on the contrary, directly start submitting on the new HTC version cluster from the yet-to-be-upgrade mX machines (ie you can do it right now) with:

condor_submit -pool cm.wn.iihe.ac.be -n schedd03 MYFILE.SUB
condor_q -pool cm.wn.iihe.ac.be -n schedd03