Hyperic is application monitoring and performance management for virtual, physical, and cloud infrastructures. Auto-discover resources of 75+ technologies, including vSphere, and collect availability, performance, utilization, and throughput metrics.
Volta Log is a java library that enables you to manage the logs of your application, saving them in Cassandra within a designated structure instead of a file. As a result, it ensures faster access to logs and a more efficient management of them.
GeneSyS is an open generic framework for network and system management, based on intelligent software agents using web-services/SOAP. It is a supervision tool for monitoring, management and control of distributed applications built with Java, .NET, PHP.
A tool for Multi-Router Traffic Graphing software, MRTG Spike Remover removes anomalous "spike" data from the MRTG logs in order to faciliatate reading the parts of the graph important to the surveyor, leaving out irrelevant data outliers.
Big-Brother is a collection of J2EE filters and servlets that provide custom monitoring and auditing of web-applications, keeping track of who does what, when, and how often. It makes use of the jakarta-apache Struts framework for the interface GUI.