codahale/dropwizard — pull request #264 by mattnworb (2013-02-15 20:29:04+00:00)
Title: add gauges for number of active and idle connections in pool

From https://groups.google.com/d/topic/dropwizard-user/zwsXxWrlj-Y/discussion

When databaseConfiguration.connectionGaugesEnabled is added, will add gauges on "numActive" and "numIdle" for the pool.