Centralized Logging to a database with alerts and powerful RCP-UI
LEMA is an easy to use Log-Server. It supports asynchronous logging of multiple applications (log4j-appender). The logs are processed and save to a database. An RCP-UI supports Live View, History View with advanced filters. You can use it for Error Monitoring / Notification; in order to do this a rule-based labellng (for instance stacktrace grouping) is performed by the server.
XRay is an analysis tool built upon your SCMs, aimed to consolidade project statistics from many repositories in a single tool, generating code reports and development statistics obtained from log data and file versions.
ScaleUp is a monitoring tool, which produces report based on configured text files and keywords (such as exceptions).
It is very useful to monitorlog in production and testing environments.