An overview of the WLCG monitoring toolset, based on Nagios, ActiveMQ, Django, MySQL for monitoring the grid used by the Large Hadron Collider

1. James Casey, CERN, IT-GT-TOM 1 st ROC LA Workshop, 6 th October 2010 Grid Infrastructure Monitoring

8. Nagios Web Interface

9. Site Nagios – CE Tests

11. JMS messaging models

14. Vendor tests From “Optimizing FUSE Message Broker” - http://open.iona.com/resources/collateral/#whitepapers

15. CERN openlab tests

19. Nagios Web Interface

20. Site Nagios – CE Tests

22. Architecture - Regions

23. Architecture

25. MyEGI homepage

26. MyEGI heatmap view

27. MyEGI Services view

28. MyEGI service status drilldown

31. Service & Site Service Status Calculation test status per (test, si, vo) Test Results Service Instance Status ServiceStatus SiteStatus aggregate test status per (si, vo) Service = a service type (e.g. CE, SE, sBDII, ...) Serviceinstance (si) = ( service , node ) combination consider only critical tests for a vo ANDing Service marked as scheduled down (sd)  sd all test statuses are ok  up at least one test status is down(failed)  down No test status down and at least one test status is unknown  unknown aggregate service instance status for site services per (site, service, vo) ORing At least one service instance status up  up No instance up and at least one is sd  sd No instance up or sd and at least one instance is down  down All instances are unknown  unknown aggregate site service status per (site, vo) ANDing all service statuses up  up at least one service status down  down no service down and at least one is sd  sd no service down or sd and at least one is unknown  unknown https://twiki.cern.ch/twiki/pub/LCG/GridView/Gridview_Service_Availability_Computation.pdf

32. Gridview – Site availability details

33. Gridview – ROC report

34. Gridview – ROC Drilldown

35. Gridview – Data Transfers

37. Gstat – LDAP Browser

38. Gstat – ROC Summary

39. Gstat - Site View drilldown

40. WLCG Topology view

49. Questions ?