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EM 12c, EM 13c: How to Avoid Temporary and Unactionable "Agent Unreachable" Notifications Caused due to Network Issues? (Doc ID 1599377.1)

Last updated on JULY 05, 2018

Applies to:

Enterprise Manager Base Platform - Version 12.1.0.1.0 and later
Information in this document applies to any platform.

Goal

1. Network latency or response is excessive (it should typically be < 1msec. from agent to OMS) at certain times due to which the Agent Unreachable alerts are delivered.
    These alerts clear nearly immediately (usually within a minute). Such issues can result in unnecessary notifications being sent out to users.

2. Similar issues may also be seen when Partner Agent feature is being used from 12.1.0.4 EM onwards.  The Partner agent actually maintains a persistent connection with the monitored agent and if this connection breaks, for whatever reason, it notifies the OMS accordingly. The OMS will raise an alert for this but the alert is cleared automatically (usually within a minute) when the monitored agent sends its heartbeat to indicate that it is up and running.

The steps in this document allows the user to setup a delay in the Incident Rule to avoid these notifications, if desired.

Solution

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