LCMAPS Tracking GroupID plugin

Tracking Group IDs are added to batch jobs to be able to track them regardless if they escape the process tree.

Batch systems that use this feature are:

• Sun Grid Engine (SGE, now known as the Oracle Grid Engine)
• Condor-C batch system

Other batch systems are known to have the feature, but it doesn't seem to be used in (known) Grid deployments:

• LSF
• Torque/PBS

Why do we need this plugin?

Here is an example process tree on a PBS/Torque based cluster Worker Node. For illustration purposes all non-relative processes are removed from the tree:

init-+
     ├─pbs_mom
     │   ├─bash
     │   │   └─1337.stro.n /var/spool/pbs/mom_priv/jobs/1337.stro.nikhef.nl.SC
     │   │       └─jobwrapper /opt/lcg/libexec/jobwrapper ./CREAM31337_jobWrapper.sh
     │   │           └─CREAM31337_ -l ./CREAM31337_jobWrapper.sh
     │   │               └─glexec /bin/bash payload.sh
     │   │                   ├─payload.sh