Book Image

Middleware Management with Oracle Enterprise Manager Grid Control 10g R5

Book Image

Middleware Management with Oracle Enterprise Manager Grid Control 10g R5

Overview of this book

Today's IT environment is very complex, encompassing a myriad of technologies and middleware platforms. Many organizations have large and heterogeneous middleware platforms that power their enterprise applications and it is often a real challenge for administrators to meet agreed service levels and minimize downtime. Oracle Enterprise Manager allows administrators to manage the complete lifecycle of an entire application infrastructure for middleware and SOA applications. This book will help you kick-start the setup of Oracle Enterprise Manager Grid Control and master all aspects of middleware management supported by Oracle Enterprise Manager. This book, written by senior members of the Oracle team serves as the only hands on guide to provisioning middleware and implementing proactive monitoring to maximize application performance and compliance using Oracle Enterprise Manager. The book starts with an introduction to the challenges faced by middleware administrators in their everyday life, and how Oracle Enterprise Manager helps solve those challenges. This book will help you manage your middleware infrastructure and applications effectively and efficiently using Oracle Enterprise Manager. By following the practical examples in this book you will learn to proactively monitor your production middleware applications running on Oracle Application Server, Oracle WebLogic Server, Oracle SOA suite (such as Oracle BPEL Process manager), Oracle Server Bus, and Oracle Coherence. You will also learn different aspects to proactive monitoring and alert notifications, service level and incident management, diagnostics for production applications, lifecycle automation using out-of-the-box deployment procedures, and patching mechanisms. This book also helps you to master best practices for managing your middleware and SOA applications for optimal service performance and reduced down time.
Table of Contents (20 chapters)
Middleware Management with Oracle Enterprise Manager Grid Control 10g R5
Credits
Foreword
About the Authors
About the Reviewers
Preface

Discovery of the Coherence cluster


A Coherence cluster usually has a large number of nodes that may run on multiple hosts. As we discussed earlier, a node could either be a storage, proxy, or management node and each node is nothing but a JVM process. For example, a Coherence node may have 16 nodes, where 14 may be storage nodes and one may be a management node and another a proxy node. The management node hosts a JMX server, and Oracle Enterprise Manager depends on the management node for discovering and monitoring the Coherence cluster. The Oracle Management Agent talks to the management node for collecting metrics, propagating runtime configuration changes, and so on.

Enterprise Manager discovers the entire cluster in a single step and requires a single agent to monitor the entire cluster.

Note

The agent can either be local or remote where management node is running. The agent box should be able to communicate with the host running the management node.

You have to start management nodes...