DomainHealth is an open source "zero-config" monitoring tool for WebLogic. It collects important server metrics over time, archives these into CSV files and provides a simple web interface for viewing graphs of current and historical statistics. It also works nicely on Exalogic.
To download (and see release notes) go to the project home (select 'files' menu option) at: http://sourceforge.net/projects/domainhealth/
For DomainHealth help docs see: http://sourceforge.net/apps/mediawiki/domainhealth/index.php
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