| Version 4 (modified by piontek, 11 years ago) (diff) |
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QCG-BDII
The guide describes the process of integration of QCG services with the EGI Information System - Resource BDII.
The integration results in publishing information about the service in a GLUE2 complaint format through the BDII service.
The basics of EGI Information Service are described at link.
In general, information about a grid service is produced by a service provider and transfered into the closest BDII (LDAP) instance (typically co-allocated with the service).This procedure is significantly simplified with the help of tools offered by EMI Resource Information Service (emi-resource-information-service). Consequently, the integration of new services was limited to the provisioning of a few script and configuration files.
IMPORTANT: The documentation is common for all QCG services: QCG-Broker, QCG-Computing and QCG-Notifications and varies only in some points from one service to another.
Software repositories
To install QCG-BDII (BDII for one of QCG services) please configure the system with:
- one of QCG repositories, containing QCG specific extensions to the EGI information system. The RPMs are availeble for SL5 and SL6.
- EMI3 (Monte Bianco) repository, which is needed for the emi-resource-information-service metapackage, providing the EGI information system base framework.
To configure aforementioned repositories please follow the instruction: QCG Software Repositories.
Installation
Install the proper package for the selected service:
- for QCG-Broker service:
yum install qcg-broker-egi-is-provider
- for QCG-Computing service
yum install qcg-comp-egi-is-provider
- for QCG-Notification service
yum install qcg-ntf-egi-is-provider
All the dependency packages will be automatically installed.
Configuration
All the QCG-BDII packages need to be configured by providing the name of the BDII site, to which they intend to publish service information.
Run the command
qcg-info-site-config -s <site-ID>
to set appropriate data.
The list of available site-IDs can be found at https://goc.egi.eu/portal/index.php?Page_Type=Sites
Currently configured site-ID may be displayed as follows:
qcg-info-site-config -d site-ID=PSNC
Starting service
IMPORTANT: Before starting the QCG-BDII please ensure that the QCG service is properly configured and started.
To start the QCG-BDII please run (as a root):
service bdii start
By default the BDII works on port 2170.
Verification
To validate correctness of the published data the glue-validator tool can be used:
glue-validator -H localhost -p 2170 -b o=glue
