Experiences from Implementation and Evaluation of Event Processing and Distribution of Notifications in an Object Monitoring Service

Organization of events processing and distribution of notifications is a key issue for performance of software monitoring and management systems, particularly for reducing the execution-time overheads they incur. This paper provides practical guidelines for design and implementation of event report generation and dissemination frameworks, based on experiences from implementation, configuration and evaluation of Melita On-line Object Monitoring Service (MOOMS): an on-line monitoring service for distributed object-oriented applications. As MOOMS is in many aspects similar to the Java Management Extensions (JMX) framework, the presented evaluation may shed some light on how this class of object services may be developed and used with efficiency in mind.