WLCG NAGIOS Kashif Mohammad Deputy Technical Co-ordinator (South Grid) University of Oxford. WLCG NAGIOS.
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Deputy Technical Co-ordinator
University of Oxford
WLCG Nagios is based on many components, few of them are
Nagios Configuration Generator (NCG) : It’s a configuration tool which creates configuration file for Nagios by querying GOCDB, site BDII and Metric Description Database.
Metric Description Database : It’s a project level database which provides description of tests which should be run against grid services at EGEE sites.
MSG-Nagios bridge: Listen on messaging system for messages destined to this Nagios and push them to Nagios.
WLCG Nagios uses two type of probes at regional level.
Remote Probes: These are the probes which are executed against site by some external agents. WLCG Nagios uses two such external agents namely SAM grid monitoring probes and ENOC Network Monitoring Probes. In Nagios term, these are passive service check.
Local Probes : These are the test which site monitoring service schedule itself. Most of these tests are replica of SAM tests written as Nagios probes and submitted through User Interface using grid proxy. In Nagios term, these are active service check.
We have installed a WLCG Nagios instance at Oxford for UKI
Access is restricted to members of dteam and ops VO. Access can be granted to non vo members having grid certificate.
A brief introduction is provided at
I have to expand it !