Difference between revisions of "LCMAPS Tracking GroupID plugin"
From PDP/Grid Wiki
Jump to navigationJump to search| Line 1: | Line 1: | ||
| + | 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: | Batch systems that use this feature are: | ||
* Sun Grid Engine (SGE, now known as the Oracle Grid Engine) | * Sun Grid Engine (SGE, now known as the Oracle Grid Engine) | ||
| Line 6: | Line 8: | ||
* LSF | * LSF | ||
* Torque/PBS | * Torque/PBS | ||
| + | |||
| + | === Why do we need this plugin? === | ||
| + | Processes are nested. They are always spawned from another process. The root is the init process. | ||
| + | |||
| + | Here is an example process tree: | ||
| + | |||
| + | init-+-crond | ||
| + | |-dbus-daemon | ||
| + | |-dhclient | ||
| + | |-events/0 | ||
| + | ├─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 | ||
| + | │ │ └─perl -e... | ||
| + | │ │ ├─perl -e... | ||
Revision as of 10:51, 9 April 2011
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?
Processes are nested. They are always spawned from another process. The root is the init process.
Here is an example process tree:
init-+-crond
|-dbus-daemon
|-dhclient
|-events/0
├─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
│ │ └─perl -e...
│ │ ├─perl -e...
