Are you receiving old notifications from OEM? Like 2 or 3 days past, mostly already solved or after a blackout?
Yeah, this is annoying, specially when getting floods and floods of notifications.
Ok, so here go a very good tip: You can set grace period for notifications! 🙂
Easy easy, do this way:
cd /bin emctl set property -name oracle.sysman.core.notification.grace_period -value [provide value in minutes]
The oracle.sysman.core.notification.grace_period OMS parameter has been introduced in 12c and allows the user to configure the grace period within which the notification should be sent. The value is set in minutes.
emctl set property -name oracle.sysman.core.notification.grace_period -value 1440
With this, OMS sends only those notifications which have been raised in the past 1440 mins (last 24 hours) and ignores all the notifications for events / incidents created prior to this time period.
After this, you’ll need to start OMS:
emctl start oms
The oracle.sysman.core.notification.grace_period parameter applies to all the Notification methods, but if the requirement is to specify the grace period for a particular notification method only, you can use the below parameters accordingly:
oracle.sysman.core.notification.grace_period_connector: For Connectors oracle.sysman.core.notification.grace_period_email: For email notifications oracle.sysman.core.notification.grace_period_oscmd: For OS Command notifications oracle.sysman.core.notification.grace_period_plsql: For PLSQL notifications oracle.sysman.core.notification.grace_period_snmp: For SNMP Trap notifications oracle.sysman.core.notification.grace_period_ticket: For ticketing tools
This is weel described as per MOS: 12c Cloud control: How to Prevent OMS from Sending out Old Notifications for Events / Incidents Occurred in the Past? (Doc ID 1605351.1)