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Event storm

337 bytes added, 18:39, 16 August 2017
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Event storm properties
== Event storm properties ==
A storm rule is opened by clicking on its name on the [https://ap1.veloopti.com.au/storm-rules Storm rules] web page which is found under the Events main menu item of Events. These pages are protected using permissions meaning not everyone is able to see them.
When a change is made that does not abide by the logic of the storm rules engine then the text is marked in red indicating that it needs to be changed.
=== Overview ===
The overview tab contains the properties of the storm rule that are common to every severity setting.
:'''Name''': The name of the storm rule. This is used in the short description of the event that will appear in the event view and also in the email subject line.
:'''Description''': This is used to describe the storm rule to other people who are editing it.
:'''Enabled''': This enables or disables the storm rule. A disabled storm rule will not detect or notify of any threshold breaches. It also will not collect any metrics for displaying in a dashboard.
:'''Event path''': This is the path that is used when counting the events each minute.
The parameters in the information setting define the number of events or duplicates and the time period over which they should be received in order to create or reduce a higher level severity storm event with the status of information. It also contains the parameters for closing an open event.
'''Breach Condition
:'''Breach Count''': This is the minimum number of events or duplicates per '''''breach duration''''' that must be exceeded in order to create a storm event with the status of information. As long as a storm event is open and this condition is met, the storm rule will continue to be in breach with an information severity level. When this condition is not being met then the reset conditions are checked to see whether the open event can be closed.
:'''Breach Duration''': This is the time period over which the minimum number of '''''breach count''''' events or duplicates in order to trigger a storm event with the status of information.
'''Reset Condition
:'''Reset Count''': If there is no breach condition being met then this is the number that the events or duplicates must be equal to or less than during the '''''reset duration''''' before the event is closed. This will close an event. The event that is being closed can have a severity of either information, warning or exception.
:'''Reset Duration''': This is the time period over which the minimum number of '''''reset count''''' events must appear in order to close the event.
'''Notifications
:'''Notify Users''': This is a list of users who will be notified when a storm event breaches the '''''breach count''''' for the first time. If the storm event is first created with a warning or critical severity level then the users in those settings will be notified.
=== Warning settings ===
The parameters in the warning settings define the number of events or duplicates and the time period over which they should be received in order to create a storm event with the severity of warning. It also contains the details to reduce or increase an existing open-storm event to a higher or lower level severity level. If the breach conditions are no longer being met for a storm event with the severity of exception then the warning breach conditions are next checked to see whether the event can be reduced to warning. Additionally if a storm event with the severity of normal now meets the warning requirements breach conditions the then the its severity level is increased to warning.
'''Breach Condition
:'''Breach Count''': This is the minimum number of events or duplicates per '''''breach duration''''' that must be exceeded in order to create or change a storm event with the status of warning. While the storm event with a severity of warning is open, as long as this condition is met the storm rule will continue to be in breach. When this condition is not being met then the reset values are checked.
:'''Reset Count''': If there is no breach condition being met then this is the number that the events or duplicates must be equal to or less than during the '''''reset duration''''' before the event can be reduced to warning.
'''Reset Condition
:'''Reset Duration''': This is the time period over which the minimum number of '''''reset count''''' events must appear in order to reduce the event to warning.
'''Notifications
:'''Notify Users''': This is a list of users who will be notified when a storm event breaches the '''''breach count''''' for the first time. If the storm event is first created with a severity level of exception then these users will not be notified when the severity is reduced to warning.
=== Exception settings ===
The parameters in the exception settings define the number of events or duplicates and the time period over which they should be received in order to create a storm event with the severity of exception. It also contains the details to increase an existing open-storm event to a severity level of exception. If the breach conditions are no longer being met for a storm event with the severity of exception then the warning and first followed by normal levels breach conditions are then checked to see what it the event should be changed tothem.
'''Breach Condition
:'''Breach Count''': This is the minimum number of events or duplicates per '''''breach duration''''' that must be exceeded in order to create or change a storm event with the status of exception. While the storm event with a severity of exception is open, as long as this condition is met the storm rule will continue to be in breach. When this condition is not being met then the reset values are checked.
:'''Breach Duration''': This is the time period over which the minimum number of '''''breach count''''' events or duplicates in order to trigger a storm event with the status of exception.
'''Reset Condition
:'''Reset Count''': If there is no breach condition being met then this is the number that the events or duplicates must be equal to or less than during the '''''reset duration''''' before the event may be reduced to warning or information.
:'''Reset Duration''': This is the time period over which the minimum number of '''''reset count''''' events must appear in order to reduce the event to warning or information.
'''Notifications
:'''Notify Users''': This is a list of users who will be notified when a storm event breaches the '''''breach count''''' for the first time.

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