ThreadingView can be used to monitor a named thread group over JMX. Data
gathered by this monitor can be classified as short term data and long term data.
Short term data is the statistics related to last 15 minutes of execution and they
get updated every 2 seconds. Long term data is related to last 24 hours of execution
and they get updated every 5 minutes. This monitor can also be configured to log a
summary of the thread states periodically. If needed a margin can be set for the blocked
thread percentage, upon exceeding which a system alert will be logged as a warning. By
default both periodic logs and alerts are turned off.