USCMS Grid Infrastructure Troubleshooting Shaowen Wang USCMS & GROW OSG Operations & Support Centers Workshop May 16, 2006.

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Presentation transcript:

USCMS Grid Infrastructure Troubleshooting Shaowen Wang USCMS & GROW OSG Operations & Support Centers Workshop May 16, 2006

Collaborative Troubleshooting A newly established USCMS Grid troubleshooting team A newly established USCMS Grid troubleshooting team –Ransom Briggs –Yan Liu –Anand Padmanabhan –Eric Shook –Shaowen Wang The Tier Tier2s The Tier Tier2s

Troubleshooting HelpDesk Interface to users Interface to users Functions Functions –Triaging –Solving USCMS Grid infrastructure problems Interfacing with OSG and LCG GGUS Interfacing with OSG and LCG GGUS –Directing CMS application-level problems to experts at the Tier-1 and Tier-2s when appropriate

FNAL Remedy

Grid-Related CMS Application Tools CRAB CRAB –LCG LCG Resource Broker LCG Resource Broker –OSG Condor-G Condor-G SRM/dCache SRM/dCache PhEDEx ( PhEDEx (Physics Experimental Data Export) –CMS data placement and file transfer system Developing components Developing components –gLite –Condor Glidin

Toward Achieving Proactive Responses Currently Currently –Understanding the complexity of troubleshooting Grids –Reconciling monitoring services MonALISA MonALISA Condor Condor Other monitoring and information services Other monitoring and information services Future Future –To diagnose with the support of OSG information and accounting services –To help establish troubleshooting flowchart and automatic alert mechanisms –To leverage our troubleshooting experience for OSG use

Troubleshooting Workflow The secret is to follow the path.

Thanks! Questions and comments? Questions and comments?

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