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Oracle Enterprise Manager 12C Configuration Best Practices (Doc ID 1929586.1)

Last updated on SEPTEMBER 10, 2021

Applies to:

Enterprise Manager Base Platform - Version to [Release 12.1]
Information in this document applies to any platform.


The objective of this document is to summarize the most commonly implemented configuration changes to improve performance and operation of a large Enterprise Manager environment.   A “large” environment is categorized by the number of agents, targets and users.   See the Oracle Enterprise Manager Cloud Control Advanced Installation and Configuration Guide chapter on Sizing for more details on sizing your environment properly.  

The recommendations made in this note have been implemented at various large customer sites and are considered Best Practices for tuning Enterprise Manager.

The omsvfy and repvfy tools referenced in this document are part of the EMDIAG Toolkit.  For further information on this toolkit, refer to <Document 421053.1> EMDIAG Troubleshooting Kits Primary Index


This note provides a list of best practice configuration changes for Enterprise Manager Cloud Control 12c. The recommended configuration changes are broken down into different sections for different EM components in the details section below. The document assumes an Oracle Enterprise Manager Cloud Control 12c install has been setup per Oracle standards.  Discussion of naming conventions, architectural considerations and installation of EM are out of scope. Those topics are addressed in the Enterprise Manager Installation and Configuration Guide


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In this Document
 OMS Recommendations
 Increase JAVA Heap Size
 Repository Recommendations
 Repvfy execute optimize
 Increase Task Workers
 Increase Ping Grace Period
 Maintain Audit Data
 WebLogic Server Recommendations
 Stuck Thread Max Time
 Configuration Recommendations
 Configure E-Mail Notifications for EM related Alerts
 Configure Out-of-Band Notifications for EM Agent
 Modify the URL and  Performance Test for the EM Console Service
 Check for Known Issues

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