1. EGEE-II INFSO-RI-031688 Enabling Grids for E-sciencE www.eu-egee.org EGEE and gLite are registered trademarks Nagios Grid Monitor E. Imamagic, SRCE OAT Kickoff Meeting

2. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 2 Overview Nagios framework Nagios Grid Monitor –Architecture –Components Current status Future work

3. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 3 Nagios Framework Host and service problems detection and recovery Alarms in case of problems Fine grained configuration –users, hosts, services, probes, notifications Host and service dependencies Easy to develop and use custom sensors Importing results from external monitoring systems –passive checks Web interface

4. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 4 Nagios Grid Monitor

5. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 5 Components Probes for monitoring grid services –Grid Monitoring Probes Specification Standard probe wrapper –integrates standard probes with Nagios Remote gatherers –import results from external monitoring system –Grid Monitoring Data Exchange Standard Publisher –export results from Nagios Grid Monitor –Grid Monitoring Data Exchange Standard

6. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 6 Components Credential management –provides proxy certificate for standard probes Nagios Config Generator (NCG) –uses various information sources –enables manual configuration tuning –modular implementation  information sources can be added  can be reused for other monitoring systems

7. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 7 Components Probe description database –frequencies, timeouts, arguments needed, dependencies –part of NCG Service dependencies –alarm filtering –hierarchy of probes  simple probes more often (e.g. 5 min)  heavyweight probes less often (e.g. 30 min)

8. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 8 Remote gLite UI Avoid installation of grid middleware on Nagios server

9. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 9 Current Status Three sets of standard probes integrated –SRCE, CERN, OSG Two external monitoring systems –SAM, ENOC DownCollector Several deployments –CERN-PPS, SRCE, NIKHEF, PIC, IN2P3, ScotGrid RPMs in apt and yum repository Installation and configuration manual More info https://twiki.cern.ch/twiki/bin/view/LCG/GridServiceMonitoringInfo

10. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 10 Future Work Nagios Grid Monitor node type –easier deployment –gLite box + Yaim configuration GGUS integration –updating tickets related to failed hosts or services (J. Templon) Credential management alternatives –certificate-based MyProxy certificates (-R) –custom credential management NCG multisite support –generating config for multiple sites –crucial for regional instances

11. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 11 Future Work GOCDB integration –region, site and services information –site personnel information –scheduled downtimes NRPE on service nodes –monitoring local components (logs, processes, etc.) Probe description database –separating from NCG to standalone database

12. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 12 Future Work Regional monitoring instance –monitor services from regional point of view –utilize network topology –integration with existing site-level Nagios instances –integration with messaging systems (ActiveMQ)  both pushing and receiving data –complex regional-level probes –can be further split to NGI-level

13. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 OAT Kickoff Meeting / Nagios Grid Monitor 13 Thank You! Questions?