The Open Science Grid (OSG) provides many monitoring and information systems to its collaborators for purposes of gathering data about available Resources on the grid.

NOTE For each system, click the information icon () for further details.

Monitoring

Generic Information Provider (GIP) Validation Service

Generic Information Provider (GIP) a configurable LDAP information provider that differentiates between static and dynamic information. OSG sites use GIP to advertise a variety of grid-related configuration data. GIP is interoperable with LCG.

http://gip-validate.grid.iu.edu/

Gratia Accounting

The Gratia Project (contributed as an OSG Activity) designs and deploys robust, scalable, trustable and dependable grid accounting and auditing services, publishes an interface to the services and provides a reference implementation.

http://gratia-osg.fnal.gov:8880/gratia-reporting/

Grid Site_Verify Scanner

Provides up-to-the minutes results of site_verify scans of OSG Resources. The site_verify scan information is provided to VirtualOrganizations?/VOInfoRS for more extensive functionality and reporting. A copy of the current site_verify script and documentation on the scanner is provided.

http://scan.grid.iu.edu/

LDAP (CEMon/BDII) information display utility

LDAP information is provided by each Resource or Compute Element (CE) on the grid to a central aggregator. (Berkeley Database Information Index) is an LCG implementation of Globus GIIS-like information index based on the Berkeley Database. LDAP queries may be run for a particular Resource or the entire set of Resources.

http://is.grid.iu.edu/ - Production http://is-itb2.grid.iu.edu/ - ITB

Resource and Service Validation

Resource and Service Validation (RSV) is a component of the OSG 0.8.0 and later releases that allows administrators to run probes locally on their Resources to test the functionality of those nodes. The results can be sent to a central aggregator at the Grid Operations Center (GOC), where the information can be collected and redistributed if necessary. A probe may be as simple as running an authentication test to a Resource and returning a result for success or failure, much the same way GridScan? does with the site_verify script.

http://rsv.grid.iu.edu

Resource Selection Service (ReSS)

The Resource Selection Service (ReSS) project facilitates automated job/resource management components by publishing information about the OSG resources. The system integrates condor technology, for the core match making service, with the gLite CEMon component, for gathering and publishing resource information in the Glue Schema format. Each one of these components communicates over secure protocols via web services interfaces. Grid users can easily access this published information and use it in their automated job management system.

https://osg-ress-1.fnal.gov:8443/ReSS/ReSS-prd-History.html - Production https://osg-ress-1.fnal.gov:8443/ReSS/ReSS-int-History.html - ITB

Virtual Organization Resource Selector (VirtualOrganizations?/VOInfoRS)

The Virtual Organization Resource Selector (VirtualOrganizations?/VOInfoRS) service allows you to access availability information about Virtual Organizations (VO), and its resouces for selected grids; currently VirtualOrganizations?/VOInfoRS displays data for the Open Science Grid (OSG) -- both the production and Integrated Test Bed (ITB) -- as well as the European Grid for Enabling E-sciencE (EGEE) and TeraGrid. VirtualOrganizations?/VOInfoRS allows you to see which Resources support each VO, and whether they've passed all critical tests of the latest site_verify scan.

http://vors.grid.iu.edu/

Virtual Organization Membership System (VirtualOrganizations?/VOInfoMS) Monitor

A VirtualOrganizations?/VOInfoMS server provides mapping of individual user DN's to a VO. These servers are contacted frequently to poll for VirtualOrganizations?/VOInfo members. VirtualOrganizations?/VOInfoMS Monitor contacts each VirtualOrganizations?/VOInfoMS server on the OSG each hour, returning the number of records retrieved (member of the VO) as well as the number of seconds it took to run the command. If a failure occurs, email is sent to the GOC where a consultant will create a ticket.

http://voms-monitor.grid.iu.edu/

Information Systems

OSG Grid Operations Center (GOC) Alerts and RSS Feed

The GOC provides information on the news feed that is relevant to OSG users and administrators. Announcements are posted regarding new software packages, central OSG and GOC service outages, and other important news-worthy topics.

http://www.grid.iu.edu/news/

OSG GOC Ticket Metrics Reports

Reports can serve to indicate the amount of work being accomplished as well as identify trends which may need to be addressed at various levels of the organization. The GOC provides a ticketing system to track issues reported by grid users and administrators.

http://www.grid.iu.edu/reports/

OSG Maintenance Scheduling Tool

Check here to see which OSG Resources are unavailable due to scheduled maintenance; an RSS feed is also provided. Registered administrators may post maintenance related to their OSG Resources (compute and storage elements). A valid DN is required. Your DN must also be attached to the Resource registration for which you wish to post maintenance.

http://www.grid.iu.edu/maintenance/

OSG Pacman Software Caches

The GOC provides software caches to the OSG. Packages may be downloaded during the OSG software stack install, or individually using the preferred package manager in OSG, Pacman.

http://software.grid.iu.edu/pacman/ - Production http://software.grid.iu.edu/itb/ - ITB

OSG Registration DB

In OSG, there are three primary levels: Virtual Organizations (VO), Support Centers, and Resources (compute elements and storage elements). All of these are registered with the database at the GOC and are subject to a review process before they are considered "official" members of the OSG. This list reflects the current registrations.

http://www.grid.iu.edu/osg-includes/

OSG Information Management (OIM) System

The OSG Information Management (OIM) System is more than just a replacement for the OSG Registration DB, it is a central information management service. Eventually several services will be consolidated and made available from OIM, serving as a portal to many needed operations monitoring tools and systems.

http://oim.grid.iu.edu

-- ParagMhashilkar - 22 Oct 2008