The Trigger Manager monitors the values of selected Statistics Elements. A Trigger is "released" when the value of an INTEGER-type Element crosses the specified threshold, or when the value of a COUNTER-type Element has increased more than the specified limit over the specified period of time. For example, a Trigger can be "released" when there are more than 10,000 E-mail messages in the Server Queue (the value of the numQueuedMessages INTEGER-type Statistics Element is over 10,000) or when the SIP Module has to process more than 500 incoming requests per second (the value of the sipTotalServers COUNTER-type Statistics Element increased for more than 5000 during the last 10 seconds).
A Trigger Handler specifies how a System Administrator or System Operator should be notified. Several notification methods are supported, and each Trigger Handler can use any number of supported methods.
Use the WebAdmin Interface to configure the Trigger Handlers. Open the General pages in the Settings realm, then open the Triggers pages. Click the Handler link to configure the Trigger Handlers. The list of existing Trigger Handlers will appear. Each Trigger Handler has a name and notification methods with parameters:
There is an empty Trigger Handler at the bottom of the page. Enter a new Handler name and click the Update button to create a new Handler.
To remove a Handler, empty its Handler Name field and click the Update button.
To rename a Handler, change the value of its Handler Name field and click the Update button.
To send Trigger Notifications via E-mail, select the Send E-mail option:
Subject: This field specifies the Subject of E-mail messages sent with this Handler.
To: This field specifies the recipient(s) for E-mail messages sent with this Handler. Multiple recipients should be separated with the comma (,) symbol.
Body: This field specifies the text of E-mail messages sent with this Handler.
The Subject and Body parameters can include the special symbol combinations:
^0: This combination is replaced with the name of the Statistics Element that has released the Trigger.
^1: This combination is replaced with the value of the Statistics Element threshold.
^2: This combination is replaced with the actual value of the Statistics Element.
^3: This combination is replaced with the current Server time.
To send Trigger Notifications as an Instant Message, select the Send Instant Message option: