4.5.10 Issuing events associated with the suppression of monitoring of a large number of events
When the suppression of monitoring of a large number of events is used, various notifications can be issued. A suppression start event (event ID: 00003F58) can be issued to notify of the start of suppression, and a suppression end event (event ID: 00003F59) can be issued to notify of the end of suppression. After whether monitoring suppression continues is checked, an event to notify that suppression will continue (event ID: 00003F65) can be issued when display suppression continues.
Whether to issue the individual events associated with the suppression of monitoring of a large number of events is specified as items of repeated event condition on the Options page of the Repeated Event Condition Settings window.
Figure 4-73 shows how the suppression start and suppression end events are issued. Figure 4-74 shows how the event to notify that suppression will continue is issued.
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When you intend to issue the suppression start event, suppression end event, and event to notify that suppression will continue, specify the timings of their issuance appropriately according to the system environment. Consideration is required to prevent these events from occurring in large numbers.
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![[Figure]](GRAPHICS/CS032075.GIF)
The following describes how the suppression start and suppression end events are issued in sequence of the numbers in the figure (the numbers in the figure correspond to the numbers below).
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JP1/IM - Manager starts the suppression of monitoring of a large number of events when the number of acquired events meeting repeated event condition α reaches or exceeds the threshold. The suppression start event is issued to notify of the start of suppression at the same time as the start of monitoring suppression.
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JP1/IM - Manager ends the suppression of monitoring of a large number of events when it receives (from the event service) a specific event. The specific event is the event whose arrival time exceeds the arrival time of the last event (among those occurring in large numbers) that is not less than the threshold by at least the end monitoring period. The suppression end event to notify of the end of suppression is issued at the same time as the end of monitoring suppression.
No suppression end event is issued when monitoring suppression ends because JP1/IM - Manager is stopped or restarted.
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![[Figure]](GRAPHICS/CS041210.GIF)
The following describes how the event to notify that suppression will continue and the event to notify that suppression will be terminated are issued. The description follows the numbers in the figure (the numbers in the figure correspond to the numbers below). Assume that repeated event condition α specifies that whether monitoring suppression continues is to be checked at intervals of three events.
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The event to notify that suppression will continue is issued because JP1/IM - Manager determines that the suppression of monitoring of a large number of events meeting repeated event condition α continues.
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The event to notify that suppression will continue is not issued because the suppression of monitoring of a large number of events meeting repeated event condition α ended.