(^-- not published in update center; see download link below)
Trigger downstream builds if a pattern is found in the build console log.
The Log Trigger plugin provides a post-build action that allows Hudson builds to search their console log for a given regular expression and if found, trigger additional downstream jobs.
You can download log-trigger.hpi or build from source. Install
$HUDSON_HOME/plugins (either manually or through the Plugin Manager web interface) and restart Hudson. The plugin is configured by selecting the "Build other projects based on console log" post build action.
If you have any issues, create a new ticket.
You can check out the Log Trigger plugin from here using Subversion, or browse the source with Trac.