OS: Windows XP, 2000, 98
Requirements: No special requirements
License: GPL, Free
Homepage: John Cooke 
ShadowTail 1.0 Description
"Shadowtail is a Java/Spring framework for gathering numerical data"
EverySoftware Editor: Shadowtail is a Java/Spring Framework for gathering numerical data (statistics) about a Java application, and writing the data to files. It is particularly useful as a source of data to feed Orca, the free Tool for plotting textual data onto a Directory on a Web server.
Why would you want to use Shadowtail? Shadowtail helps you to monitor your software application or service by logging application and application container data over time. The data format is suitable for plotting or for analysis. Suppose you have a web application selling widgets. Your Sales Manager would like to monitor and record application data on turnover and number of widgets sold, analyzed by day, week and month. Your operations manager would like to monitor JVM data on heap usage and number of classes loaded. A combination of Shadowtail, Java MBeans in your web app, and Orca will give you the data in raw format and in graphs.
Here is an example graph produced by Orca from data logged by Shadowtail from an MBean monitoring a count of widget sales in a Java application.
ShadowTail 1.0 Download
