How to Troubleshoot Notifications That Are Hung / Stuck and Not Being Sent from EM 10g/11g (Doc ID 285093.1)

Last updated on DECEMBER 12, 2023

Applies to:

Purpose

This document helps in troubleshooting Enterprise Manager Setup when the Notifications are Hung or are not being sent.
You can follow the steps in this document for these symptoms:

• No Notifications are being sent, when a Metric Alert or Policy Violation is generated against a monitored target, irrespective of the notification method that has been chosen. 
  However, the Test button for that particular notification method works and test messages are received.
• The 'Notification Delivery Backlog' chart in the Repository is growing linearly.
  This chart can be found in 10.1.0.x Grid Console under Management System -> Management Services and Repository
  In 10.2 Grid Control and above versions, check under Setup -> Management System and Repository

          From the time, the notification was last sent the value grows linearly - but never decreases.

• Errors could exist in the Management System and Repository -> Errors tab
  such as:
  Error Unexpected error during: QUEUE(EMAIL4/<emailaddress>/SYSMAN)
  "Unexpected error during queue ORA-25205: the queue SYS.MGMT_NOTIFY_Q does not exist." 
  
• Notifications are being sent but they are delayed - time gap between the actual metric alert and the sent notification is very large.

Note: Sometimes, re-starting the OMS can clear out the problem which is causing the notifications to be stuck. Hence, it is advisable to collect the information listed below, before re-starting the OMS.

Troubleshooting Steps

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