I'm managing several tomcat instances (aprox 30-35) and looking for some console to centralize the logs.
I tried php-syslog-ng before (no with tomcat), and found it useful. I would like that these software would have some of these features:
-Syntax highlight according to the severity of the exceptions.
-Tree view for stack traces and nested exceptions.
Bonus point:
-Alarm when certain pattern is matched.
Best Answer
you can use splunk : http://www.splunk.com/ in which you can centralize all logs you have, you can then perform crossed search, it's a freeware, a bit heavy but awesome. You can also use lambda probe http://www.lambdaprobe.org/d/index.htm but it's more for global managment, not especifically for logs.