Difference between revisions of "GLExec"

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== Current gLExec version ==
 
== Current gLExec version ==
  
The latest stable version released through gLite 0.8.1, via EMI: 0.8.10.
+
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: 0.8.10
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Latest version available: 0.9.11, released in EMI-3 and UMD-3. Latest OSG release [https://www.opensciencegrid.org/bin/view/Documentation/Release3/WebHome OSG-3] is 0.9.9.
  
== Deployment: Installation and setups ==
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== 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.
 +
 
 +
=== Documentation ===
 +
 
 +
* [[Exit codes of gLExec]]
 +
* [[Man pages of gLExec]]
 +
 
 +
* EMI-2 and EMI-3 information:
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** [http://www.nikhef.nl/grid/lcaslcmaps/EMI2_docs/glexec_userguide.pdf EMI-2 User Guide PDF]
 +
 
 +
== Sysadmin information ==
 +
 
 +
=== Deployment: Installation and setups ===
  
 
* gLExec on the Worker Nodes or Computing Element
 
* gLExec on the Worker Nodes or Computing Element
 
** [[Using generic per-node pool accounts or a shared map database]]
 
** [[Using generic per-node pool accounts or a shared map database]]
** [https://twiki.cern.ch/twiki/bin/view/EGEE/AuthZPEPgLExecInfo Using gLExec with Argus]
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** [[GLExec Argus Quick Installation Guide]]
 
** [[Using the SCAS]]
 
** [[Using the SCAS]]
 
** [[Batch System Interoperability]]
 
** [[Batch System Interoperability]]
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* [[Secure installation considerations]]
 
* [[Secure installation considerations]]
 
* [[Debugging hints]]
 
* [[Debugging hints]]
See also the [[#Background information|Background information]]
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* [[GLExec Epilogue Functionality]] (version 0.9 and up)
 
 
== How To's and FAQ ==
 
  
 
* To help you master gLExec's security:
 
* To help you master gLExec's security:
 
** [[Need to Know's]]: Explains about the '''LD_LIBRARY_PATH''' in combo with '''setuid''' programs.
 
** [[Need to Know's]]: Explains about the '''LD_LIBRARY_PATH''' in combo with '''setuid''' programs.
** [[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.
 
 
** [https://www.nikhef.nl/pub/projects/grid/gridwiki/images/a/ab/Argus-SCAS-note-20100602.pdf Argus and SCAS node dd. June 2nd, 2010]: quick guide on how to decide for either SCAS or Argus as the central service with gLExec.
 
** [https://www.nikhef.nl/pub/projects/grid/gridwiki/images/a/ab/Argus-SCAS-note-20100602.pdf Argus and SCAS node dd. June 2nd, 2010]: quick guide on how to decide for either SCAS or Argus as the central service with gLExec.
 
* To help you adapt or rebuild gLExec:
 
**[[Building gLExec and its gLite dependencies from SVN source]] How to build gLExec and all its gLite dependencies directly from source.
 
**[[Building gLExec from src rpm]] How to build gLExec from a source RPM.
 
  
 
* [[FAQs and misconceptions about gLExec]]
 
* [[FAQs and misconceptions about gLExec]]
  
== Test plan/report ==
+
See also the [[#Background information|Background information]]
  
* [[EMI-1 gLExec release test report]]: This is the report describing the test performed for the software certification of the released components with gLExec.
+
=== To help you adapt or rebuild gLExec ===
 +
* [[Building gLExec and its gLite dependencies from SVN source]] How to build gLExec and all its gLite dependencies directly from source.
 +
* [[Building gLExec from src rpm]] How to build gLExec from a source RPM.
  
== Documentation ==
+
=== Documentation ===
  
* [[Exit codes of gLExec]]
 
 
* [[Man pages of gLExec]]
 
* [[Man pages of gLExec]]
 
* [[Service Reference Card for gLExec]]
 
* [[Service Reference Card for gLExec]]
 
* [[Papers about gLExec]]
 
* [[Papers about gLExec]]
 +
 +
See also the [[#Background information|Background information]]
 +
 +
* EMI-2 and EMI-3 information:
 +
** [http://www.nikhef.nl/grid/lcaslcmaps/EMI2_docs/glexec_funcdesc.pdf EMI-2 Functional Description PDF]
 +
** [http://www.nikhef.nl/grid/lcaslcmaps/EMI2_docs/glexec_servrefcard.pdf EMI-2 Service Reference Card PDF]
 +
** [http://www.nikhef.nl/grid/lcaslcmaps/EMI2_docs/glexec_sysadminguide.pdf EMI-2 System Administrator's Guide PDF]
 +
 +
== Test plans/reports ==
 +
 +
* [[EMI-1 gLExec release test report]]: This is the report describing the test performed for the software certification of the released components with gLExec.
 +
* [[EMI-2 gLExec release test report]]: This is the report describing the test performed for the software certification of the released components with gLExec.
  
 
== Background information ==
 
== Background information ==
  
* [https://twiki.cern.ch/twiki/bin/view/LCG/GlexecDeployment Deployment of gLExec on the Worker Node]
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* [https://twiki.cern.ch/twiki/bin/view/LCG/GlexecDeployment LCG Deployment of gLExec on the Worker Node]
 
* [https://wlcg-tf.hep.ac.uk/wiki/Multi_User_Pilot_Jobs Multi User Pilot Jobs]
 
* [https://wlcg-tf.hep.ac.uk/wiki/Multi_User_Pilot_Jobs Multi User Pilot Jobs]

Latest revision as of 11:19, 4 March 2015

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.

Documentation

Sysadmin information

Deployment: Installation and setups

See also the Background information

To help you adapt or rebuild gLExec

Documentation

See also the Background information

Test plans/reports

Background information