guide:BDII

Overview

Berkeley Database Information Index (BDII) acts as a cache, storing information about the Grid status in its database. It collects information by querying the Grid Index Information Service (GIIS) at each site. BDII is an LDAP-based information system. Various services available on the grid publish their information in LDAP on the hosts they run on. This information is aggregated at site level by a so-called site BDII. The information published by all sites on the grid is aggregated by top-level BDIIs, which hold information about all services available on the grid.

There are numerous top-level BDIIs on the grid. The top-level BDII at DGI reference installation is: bdii-dgrid.gridka.de. This top-level BDII is of most interest to the enduser.

User Guide

The BDII service provided by the University Cyprus is on host iwrbdii.fzk.de, port number 2170.

Example string for querying the BDII:

 ldapsearch -LLL -x -H ldap://bdii-dgrid.gridka.de:2170 -b "mds-vo-name=local,o=grid"

Site Administrators

For Yaim Configuration: in your site configuration file, make sure BDII_HOST is set to: iwrbdii.fzk.de. Example string for querying the BDII:

 ldapsearch -LLL -x -H ldap://bdii-dgrid.gridka.de:2170 -b "mds-vo-name=local,o=grid"

See also: Site-info.def (monitoring configuration)