From OpenNMS

Overview

Add a feature to the OpenNMS poller and webUI to let the user initiate a demand poll and see the results of the demand poll.

Scenarios

1. A user who is a stickler for accuracy (and a bit obsessive compulsive about hand-checking services) notices that a service, interface, or node has recently gone down or returned to service and he wants OpenNMS to initiate an immediate poll to update the status as soon as possible.
2. Frank, the comfortable system administrator, is trying to figure out exactly what is broken with a monitored service on one of his servers so he can fix it. Since the OpenNMS server is configured to do a thorough poll of all services, he wants to execute an immediate poll of a service and see the logging details of the poll to see what's going on. Mike runs the OpenNMS server and has offered to give Frank a UNIX login to the OpenNMS server so he can see the OpenNMS logs, but Frank doesn't want to have to learn how to go through the logs, and he wants to avoid any possible additional responsibility by having access to another server. Frank wants to be able to request a demand poll and see the details of the poll on the web.

Non Goals

1. We will not implement scenario "detailed debugging" feature that provides details of an individaul service poll (log messages, individual failures/timeouts, etc.). We will, however, make it easy to add on the functionality for scenario 2 at a later time.

Use Cases

Use Case: Demand polling