Configuring suppression for nonoccurrence seasonality events with related events

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Turn off the default creation of multiple nonoccurrence events and create only one nonoccurrence event when certain conditions are met.

About this task

By default, a nonoccurrence event is created for all events in the related events group if the following conditions are met:

A seasonal event is also part of a related events group.
A seasonality nonoccurrence is deployed.
The events do not occur.

To turn off the default creation of multiple nonoccurrence events and create only one nonoccurrence event, set the suppress_nonoccur_related_events option.

Procedure

Log in to the server where IBM® Tivoli® Netcool®/Impact is stored and running.
Generate a properties file containing the latest Event Analytics system settings.
1. Navigate to the directory $IMPACT_HOME/bin.
2. Run the following command to generate a properties file containing the latest Event Analytics system settings.
```
nci_trigger server_name username/password NOI_DefaultValues_Export
 FILENAME directory/filename
```
  Where:
  - server_name is the name of the server where Event Analytics is installed.
  - user name is the user name of the Event Analytics user.
  - password is the password of the Event Analytics user.
  - NOI_DefaultValues_Export is a Netcool/Impact policy that performs an export of the current Event Analytics system settings to a designated properties file.
  - directory is the directory where the properties file is stored.
  - filename is the name of the properties file.
  For example:
```
nci_trigger NCI impactadmin/impactpass NOI_DefaultValues_Export
 FILENAME /tmp/properties.props
```
Edit the file and change the suppress_nonoccur_related_events option so that it equals true.
```
suppress_nonoccur_related_events=true
```
Import the modified properties file into Event Analytics.
1. Ensure you are in the directory $IMPACT_HOME/bin.
2. Run the following command to perform an import of Event Analytics system settings from a designated properties file.
```
nci_trigger server_name username/password NOI_DefaultValues_Configure
 FILENAME directory/filename
```
  Where:
  - server_name is the name of the server where Event Analytics is installed.
  - user name is the user name of the Event Analytics user.
  - password is the password of the Event Analytics user.
  - NOI_DefaultValues_Configure is a Netcool/Impact policy that performs an import of Event Analytics system settings from a designated properties file.
  - directory is the directory where the properties file is stored.
  - filename is the name of the properties file.
  For example:
```
nci_trigger NCI impactadmin/impactpass NOI_DefaultValues_Configure
 FILENAME /tmp/properties.props
```

Example

The seasonal event is linked to three related events, and the identifier of the seasonal event is the same as the identifier of the second related event.

When suppress_nonoccur_related_events=false is set for a nonoccurrence seasonal event with a create event option, the following events are generated:

If none of the events occur in the time window, the system generates synthetic events for all three identifiers.
If the identifier for only the first related event occurs, the system generates synthetic events for the second and third related events.
If the identifier for only the second related event occurs, the system does not generate a synthetic event because the identifier of the seasonal event is the same as the identifier for the second related event.
If the identifier for only the third related event occurs, the system generates synthetic events for the first and second related events.

When suppress_nonoccur_related_events=true is set for a nonoccurrence seasonal event with a create event option, the following events are generated:

If none of the events occur in the time window, the system generates one synthetic event.
If the identifier for any of the events occurs, the system does not generate any synthetic events.