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EM13c : RAC instances missing in OEM 13c discovery (Doc ID 2437223.1)

Last updated on AUGUST 20, 2018

Applies to:

Enterprise Manager for Oracle Database - Version 13.2.0.0.0 and later
Information in this document applies to any platform.

Symptoms

In Enterprise Manager (EM) Cloud Control, when attempting to discover a Cluster is not listing any targets. Its saying no cluster was found on this host.

Error stack observed from agent logs:

INFO - Starting computation of the target dynamic properties
ERROR - The target is fully broken (code=0x80) for the following reason: Dynamic properties calculation timeout (in 'OsHostDynProps')
ERROR - Dynamic property execution timeout

Executing the Dynamic Properties manually for this Host fails:

$ emctl reload agent dynamicproperties <Hostname>:host
Oracle Enterprise Manager Cloud Control 13c Release 2
Copyright (c) 1996, 2016 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
EMD reload error:Target host.<Hostname> is broken: Target {host.<Hostname>} is broken: Compute dynamic property takes
too long - Dynamic properties calculation timeout (in 'OsHostDynProps')

The host target is marked broken in console because it is not able to calculate a specific dynamic property.

Cause

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