A LDAP BASED MONITORING SYSTEM FOR GRID

Monitoring the computing resource is very important to the High Performance Distributed Computing Environment-grid. Hardware and software failure can be found and solved in time by monitoring the system. Analyzing the data gathered by monitoring will help find performance bottleneck, which is important for improving the system performance. GridMon is an LDAP based distributed grid monitoring system. It changes the normal usage of LDAP that doesn’t store dynamic information in directory service. GridMon stores not only static data, but also dynamic data to reduce the interaction between client and server since the data can be obtained in one access. The monitoring object location and monitoring event are combined together into the same directory service. GridMon uses middleware technology to avoid direct access to the monitored hosts, therefore solving security and interface issues. Based on the LDAP’s directory hierarchy, a tree-like infrastructure is built to map the grid structure. The whole grid monitoring system is constructed by giving the concepts of grid monitoring objects and monitoring events, with the representation method. The implementation issues about an implemented system-GridMon, is also discussed, which is designed according to the conceptual monitoring object and event model. The main software architecture used in GridMon is discussed by referring to the data model and design. Finally, the structure deference between grid and the cluster system is analyzed to explain the key points of grid monitoring, and GridMon is evaluated by these points and its potential applications.