The utility lets you create and send an event to trigger processes inside of Horizon. It is most frequently used to reload daemon configuration without having to restart Horizon. You can also use the utility as an automation tool to trigger events as part of continuous integration scripts or other automated processes.

For example:

  • create a new suspect event every time you add a new resource

  • clear out alarms

  • open a ticket in your integrated ticketing system

  • order new ink cartridges when your printer is out of toner

Format: bin/ <uei> [host:port] [options]

The host:port defines the hostname and port to send the event; by default the local host.

Find UEIs and their associated parameters in the ${OPENNMS_HOME}/etc/eventd-configuration.xml file. See also Event Configuration.

Table 1. parameters
Name/Alias Description



The unique event identifier (UEI) indicates the type of event. View UEIs in the eventd-configuration.xml file. You can also define your own UEIs.


-d (--description)

A description for the event browser.

-f (--ifindex)

ifIndex of the associated service.

-h (--help)

Help message for the script. (The content from this table.)

-i (--interface)

IP address of associated interface.

-l (--logmsg)

A short log message for the event browser (secure field by default).

-n (--nodeid)

Database ID of associated node (or use foreignSource, foreignId parameters).

-p (-parameter)

Parameter in key=value form. For example, -p 'url'

-s (--service)

Name of the associated service

-x (--severity)

Severity of the event:

-t (--timezone)

The time zone you are in.

-v (--verbose)

Print raw XML that is generated.

-V (--version)

Print version and exit successfully.

Note that parameter descriptions use the percentage sign (%) as a delimiter to mark a replacement variable. (See Replacement tokens.) If a literal % sign appears in your description, you must escape it with a %. For example:



Send an event to reload the configuration of Eventd.

$OPENNMS_HOME/bin/ -p 'daemonName Eventd'