Tracking down Agent

Hello,

I recently upgraded to server version 4.6 and my server.log is flooding with messages like this:

2012-03-08 01:12:10,965 WARN  [catalina-exec-13] [org.hyperic.hq.measurement.server.session.AvailabilityManagerImpl@441] Measurement, 209501, for interval 1328513771642 - 1331062571642 did not return a value for range 1330544171642 - 1330587371642

How can I track down the actual platform/agent.

Thank you,

David