Using the Event Monitoring Service (November 1999)

Appendix B 91
Troubleshooting
Performance Considerations
Performance Considerations
Monitoring your system is important to maintain high availability, but
monitoring consumes system resources. You must carefully consider your
performance needs against your need to know as soon as possible when a
failure threatens availability.
System Performance Issues
The primary performance impact will be related to the polling interval
and the number of resources being monitored. You need to balance your
need to quickly detect failures with your need for system performance
and adjust the number of resources you monitor and the polling intervals
accordingly.
You may want to set a short interval, such as 30 seconds, for resources
that require quick response after failure. You may want to set a longer
polling interval, such as 5 minutes or more, for all other resources.
Network Performance Issues
Although monitoring is not likely to affect network performance, you
may want to make sure that only necessary messages are being sent.
Make sure your monitor requests are configured so you are notified only
for important events.