4.5.7 Issuing notifications when the suppression of monitoring of a large number of events continues

You can specify settings for Notifications for when suppression continues to check whether the suppression of monitoring of a large number of events continues at intervals of specified time (number of seconds) or a specified number of events. When monitoring suppression continues, a JP1 event can be issued to notify of the continuation of monitoring suppression.

Notifications for when suppression continues is a setting item of repeated event condition, which must be set for individual repeated event conditions. This subsection describes when to check whether monitoring suppression continues.

Note that, if checking whether monitoring suppression occurs concurrently with ending monitoring suppression, ending monitoring suppression takes priority.

Important

For illustrative purposes, given here is an example of checking whether the suppression of monitoring of a large number of events continues at short intervals. Note that, if you specify the checking (of whether monitoring suppression continues) at short intervals during actual system operation, a large number of notification events might be issued as a result of checking. Therefore, specify an appropriate interval of checking according to the system environment.

You can select time (number of seconds) or number of events as the unit of checking interval. The following describes the checking operations with respective units of interval selected:

• Checking at intervals of specified time (number of seconds)

  The first checking is performed when the condition shown below is satisfied by the two repeated events that meet the same repeated event condition:

  Arrived-time-of-the-latest-repeated-event - arrival-time-of-the-repeated-start-event ≥ specified-number-of-seconds

  For the second and subsequent checkings, in the above condition, the reference event (repeated start event) is substituted by the event that triggered the preceding checking.

  The specifiable number of seconds ranges from 1 to 86,400 seconds.

  The figure below shows an example of checking whether the suppression of monitoring of a large number of events at intervals of 2 seconds. Note that, in this example, the end monitoring period is set to 3 seconds.

  Figure 4‒67: Checking whether suppression continues at intervals of specified time (number of seconds)

• Checking at intervals of a specified number of events

  The first checking is performed when the specified number of events is exceeded by the total number of the repeated events meeting the same repeated event condition. The repeated events are counted from the repeated start event up to the latest repeated event.

  For the second and subsequent checkings, in the above condition, the reference event (repeated start event) is substituted by the event that triggered the preceding checking.

  The specifiable number of events ranges from 1 to 1,000,000.

  The figure below shows an example of checking whether the suppression of monitoring of a large number of events at intervals of three events. Note that, in this example, the end monitoring period is set to 3 seconds.

  Figure 4‒68: Checking whether suppression continues at intervals of specified number of events

Note

You can specify terminating monitoring suppression or issuing a notification event as the action to be taken when monitoring suppression is determined to be continuing. If, however, the monitoring suppression using a repeated event condition with a threshold set is terminated, the events subject to monitoring suppression will be displayed in the event list and unnecessary automated actions will be executed. This situation begins immediately after monitoring suppression is terminated and continues until the number of occurring events exceeds the threshold again. Therefore, for the normal suppression of monitoring of a large number of events, the termination of monitoring suppression is not specified. If you want to terminate monitoring suppression when monitoring suppression is determined to be continuing, consider whether the termination of monitoring suppression causes problems before specify settings for Processing for when suppression continues.

Organization of this subsection

• (1) Notifying of the continuation of the suppression of monitoring of a large number of events