From time to the following warning message may appear in Introscope Agent logs:
[WARN] [IntroscopeAgent] Temporarily throttling the errors sent because more than 10 have occurred in a short time
This warning is triggered by the Error Detector feature of the APM agent. Error Detector uses the errors.pbd file to detect and report information on errors occurring on the currently monitored application server.
When Error Detector finds an error, it generates an error snapshot providing component-level information on how the error occurred.
These error snapshots can be resource-intensive to generate. As a result, to limit the error detector overhead on the monitored application, the agent restricts the number of snapshots generated to 10 in any 15 second interval.
This limit is configurable in the IntroscopeAgent.profile with the property:
Should this limit be exceeded, the message: “[WARN] [IntroscopeAgent] Temporarily throttling the errors sent because more than 10 have occurred in a short time” is logged. (Note that raising this property may increase overhead on the monitored application.)