• Repack 2


  • Result of latest Grid Information System System Performance Test : PPT here
  • CASTOR, White Paper Lectures : PPT here
  • Role and work within the group, Grid Deployment Group Meeting : PPT here
  • Introduction to NagiosGrapher, WLCG Collaboration Workshop April 2008 PPT here
  • GLUE SQL Rendering,OGF 2008 Barcelona PPT here
  • GLUE 2, EGEE 2008 Istanbul PPT here
  • Patch Release Procedure, White Area Lecture PPT here, PDF here


  • Jms Status Report 2009 PPT here
  • Jms Status Report 2010
  • Deployment Standartization Update, BE-AP, 2010
  • Jms Status Report 2011
  • The Deploy Tool, BE, June 2011
  • JMS in BE, Presentation in IT-GD May 2010
  • The CMW Tracing Service Progress & Evolution, BE-CO TC, 28th June 2012
  • CMX - A Way to Get More Control Over Your C/C++ service, BE-CO TC, 28th June 2012
  • Remote Tracing Facility for Distributed Systems, ICALEPCS 2011, 14th October 2011
  • Remote Tracing Facility for Distributed Systems, BE-CO TC, 16th June 2011
  • Activemq for controlling CERNís Accelerator Complex, FuseSource Visit @ CERN, 2011
  • Large Scale Messaging with ActiveMQ for Particle Accelerators at CERN, CamelOne Conference, Boston, 2012

  • (Contrib) Usage of ActiveMQ at CERN, Fuse Community Day Paris Oct.2010


  • GLUE 2.0 Specification, Sergio Andreozzi,Stephen Burke,Felix Ehm,Laurence Field,Gerson Galang,Balazs Konya,Maarten Litmaath,Paul Millar,JP Navarro OpenGridForum, PDF here
  • Scalability and performance analysis of the EGEE information system, F. Ehm, L. Field and M. Schulz, Journal of Physics

Old Pages

gLite Release and Repository Management

  • Preparation of Certification/PPS/Production repository for gLite
  • Maintenance of gLite Webpage
  • Release notes creation for PPS/Production
  • Development/Maintenance of Repo scripts (RepoDevelArchievements)

GSTAT 2.0 Development

GLUE 2.0 schema

Grid Information System (BDII)

LDAP stress Tool

Can be found here : CVS

Slapd Tests ( SLC3 OpenLDAP tests )

  • outdated,since SLC3 is not supported anymore
  • Analysis of the performance according to query datasize (SlapdAnalysis)
  • Query on single thread while increasing load on slapd machine (SlapdAnalysisWithLoad)
  • Introducing indexed database tables (SlapdIndexedDB)
  • Comparison of indexed/non-indexed DB on a loaded machine (emulates scenario of the BDII on a Grid Computing Element) SlapdIndexedAnalysisWithLoad

Slapd Tests Part 2

Replacement of the DB backend to Relational Engine

  • Replacing the current LDAP schema to a relational one and running performance tests in comparison with current system. Oracle and MySQL are used to implement schema as a reference model - please find more information here : BDIIRelationalDBBackend

Comparison LDBM and BDB

Topic attachments
I Attachment History Action Size Date Who CommentSorted ascending
Unknown file formatpptx EGEE_GLUE_2.pptx r1 manage 1575.5 K 2008-10-07 - 11:46 FelixNikolausEhm GLUE 2, EGEE 2008 Istanbul
PowerPointppt Role_In_GD.ppt r1 manage 3110.0 K 2008-03-31 - 11:22 FelixNikolausEhm  
PowerPointppt OGF2008_GLUESQL.ppt r1 manage 1035.0 K 2008-06-05 - 14:11 FelixNikolausEhm OGF 2008 Barcelona
PDFpdf JMS_Service2.pdf r1 manage 574.6 K 2009-07-01 - 12:26 FelixNikolausEhm Presentation hold on BE-CO's JMS Status (25.06.2009)
Unknown file formatpptx ReleaseProcedure_WhiteAreas.pptx r1 manage 490.0 K 2008-12-05 - 12:02 FelixNikolausEhm White Area: gLite Patch Release Procedure
PDFpdf WA-felix_ehm.pdf r1 manage 250.2 K 2008-12-18 - 16:43 FelixNikolausEhm White Area: gLite Patch Release Procedure PDF version
PowerPointppt WLCG-NagiosGrapher.ppt r1 manage 2229.0 K 2008-04-25 - 10:13 FelixNikolausEhm WLCG Presentatation Arpil 2008 on NagiosGrapher
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Topic revision: r43 - 2012-10-16 - FelixNikolausEhm
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