Sawmill is a powerful, hierarchical log analysis tool that runs on every major platform. It is particularly well suited to web server logs, but can process almost any log. The reports that Sawmill generates are hierarchical, attractive, and heavily cross-linked for easy navigation. Complete documentation is built directly into the program.

Here are just a few of the major features of Sawmill:

• Easy To Use
• Extensive Documentation
• Live Reports & Graphs
• Package of Powerful Analysis Tools
• Attractive Statistics
• Database Driven
• Advanced User Tracking by WebNibbler(tm)
• Very Fast
• Easy To Install
• Highly Configurable
• Works With a Variety of Platforms
• Processes Almost Any Log File

这几天在使用Tiles+Struts搭一个portal的框架,使用的过程中发现很多debug信息都输出到Tomcat的标准输出流上去了,每次都要查看那个文本的log实在是不方便,满在google上面搜了一下想看看是否有这中工具,没想到真的让我找到了,功能很强大,Sawmill~