Flip-Flop condition explanation

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The following conditions can is set for trigger-based actions:

Condition Type	Supported Operators	Description
Application	= Like Not-like	Specify an application or a application to exclude. = -Event belongs to a trigger of the item which is linked to the specified application. like-event belongs to a trigger of the item which is linked to an application containing the string. not like-event belongs to a trigger of the item which is linked to an application not containing the string.
Host Group	= <>	Specify host groups or host groups to exclude. = -Event belongs to the this host group. <> -event does not belong to the this host group.
Template	= <>	Specify templates or templates to exclude. = -Event belongs to a trigger inherited from the this template. <> -event does not belong to a trigger inherited from the this template.
Host	= <>	Specify hosts or hosts to exclude. = -Event belongs to the this host. <> -event does not belong to this host.
Trigger	= <>	Specify triggers or triggers to exclude. = -event is generated by this trigger. <> -event is generated by any and trigger, except this one.
Trigger Name	Like Not-like	Specify a string in the trigger name or a string to exclude. like-event was generated by a trigger, containing this string in the name. Case sensitive. Not-A-this string cannot is found in the trigger name. Case sensitive. Note: Entered value is compared to trigger name with all macros expanded.
Trigger Severity	= <> >= <=	Specify trigger severity. = -equal to trigger severity <> -not equal to trigger severity >= -more or equal to trigger severity <= -less or equal to trigger severity
Trigger value	=	Specify a trigger value. = -Equal to trigger value (OK or problem)
Time period	Inch Not in	Specify a time period or a time period to exclude. In-event time is within the time period. not in-event time was not within the time period. See Time period Specification page for description of the format.
Maintenance status	Inch Not in	Specify a host in maintenance or not in maintenance. in-host was in maintenance mode. not in-host was not in maintenance mode. Note: If several hosts is involved in the trigger expression, the condition matches If at least one of the hosts Is/is not in maintenance mode.

Trigger Value:

• If a trigger changes status from OK to problem, trigger value is problem

• If a trigger changes status from problem to OK, trigger value is OK

Tips

When a new action for triggers was created, it gets the automatic conditions (both can removed by the user):

• "Trigger value = Problem" -so, only problem notifications is sent. This means so if you configure a action without setting any more specific conditions, messages would be is sent for all Pro Blems. This makes the recovery message checkbox operate in a more intuitive the.

• "Maintenance status = Not in Maintenance" -so, notifications is not sent for hosts in maintenance. (The maintenance of the notification host is not sent because the host is not in the maintenance state.)

This article is from the "Linux Revolution" blog, so be sure to keep this source http://kaibinyuan.blog.51cto.com/7304008/1604965

Flip-Flop condition explanation