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Multi User Pilot Job with CE & WN

gLExec is a program that acts as a light-weight 'gatekeeper'. gLExec takes Grid credentials as input. gLExec takes the local site policy into account to authenticate and authorize the credentials. gLExec will switch to a new execution sandbox and execute the given command as the switched identity. gLExec is also capable of functioning as a light-weight control point which offers a binary yes/no result called the logging-only mode.

Current gLExec version

The latest stable versions released are:

  • gLite-3.2: 0.8.1
  • EMI-1: 0.8.10
  • EMI-2: 0.9.6
  • EMI-3: 0.9.11

Latest version available: 0.9.11, released in EMI-3 and UMD-3. Latest OSG release OSG-3 is 0.9.9.

User information

  • Proxy file handling in gLExec What do all the environment variables do with proxy files
  • GLExec TransientPilotJobs describes how you may go about managing a target workload's directory in Pilot Job Frameworks.
  • GLExec Environment Wrap and Unwrap scripts describes how you can preserve the environment variables between the calling process of gLExec and the user switched side of gLExec. For example: to preserve the environment variables from a Pilot Job Framework, through gLExec and into Pilot Job Payload.


Sysadmin information

Deployment: Installation and setups

See also the Background information

To help you adapt or rebuild gLExec


See also the Background information

Test plans/reports

Background information