Procedure Infrastructure Monitoring

The monitoring of the D4ScienceAn e-Infrastructure operated by the D4Science.org initiative. Ecosystem is carried out by Infrastructure Managers, Site Managers, VRE Managers, VO Admins, and Data Managers. Such activity is done on a regular basis using the different tools provided to monitor the status of gCube , gLite, Hadoop and Runtime Resources (check below).

In case a new problem is identified an incident should be reported immediately following the Incident Management procedure.

gCube Resources

The monitoring of the gCube Resources of the infrastructure is based on three systems:

• IS Monitoring: Based on information published in the gCube Information System. This information is accessible from:
  • Advanced Monitoring
• Messaging System: Based on the information published by probes local to each node. This information is used to send emails to Site Managers when problems are found.
• Nagios: Based on the information gathered by Nagios about the availability of each gHN. In case of problems Nagios notifies by mail the Infrastructure Managers.

The iMarine Data e-InfrastructureAn operational combination of digital technologies (hardware and software), resources (data and services), communications (protocols, access rights and networks), and the people and organizational structures needed to support research efforts and collaboration in the large. Nagios server is available at Nagios Server

gLite/UMD Resources

There are several tools to monitor the EGI production infrastructure resources and consequently the gLite/UMD resources. Many of these tools share the same information source providing only different views over it. Such large number of tools cover many monitoring possibilities.

• Services Availability: GridView, MyEGI
• Services Status: GStat, RTM
• Services Information: GOCBD

The table below provides direct links to status of the different gLite sites of the infrastructure provided by iMarine members:

	Site	Service Availability
CNR	gocdb gstat	MyEGI Service Availability
NKUA	gocdb gstat	MyEGI Service Availability

Hadoop Resources

The Hadoop clusters are monitored trough the Hadoop internal monitoring and tracking systems. These tools provide monitoring for MapReduce jobs and for HDFS filesystems.

	MapReduce	HDFS
CNR	Job Tracker	DFS Health

Runtime Resources

The monitoring of the Runtime Resources of the infrastructure is based on 2 systems:

• IS Monitoring: Based on information published in the gCube Information System. This information is accessible from:
  • Advanced Monitoring
• Nagios: Based on the information gathered by Nagios about the availability of each Runtime Resource. For some of the Runtime Resources additional checks are going to be instrumunted ( e.g. Mysql or PSQL DB DB sizes, or Index Usages) in Nagios.In case of problems Nagios notifies by mail the Infrastructure Managers. The iMarine Data e-InfrastructureAn operational combination of digital technologies (hardware and software), resources (data and services), communications (protocols, access rights and networks), and the people and organizational structures needed to support research efforts and collaboration in the large. Nagios server is available at Nagios Server