Oracle Application Server 10g Architecture and Administration - Miscellaneous Application Server 10g Commands and Sumary (
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While we will be exploring these commands in greater detail in later chapters, we want to introduce a few more common command-line utilities for Application Server 10g administration. Let’s take a quick look at commands for managing the Web Cache (webcachectl) and the Oracle Internet Directory (oidctl and oidmon).
Shut Down the Application Server 10g Web Cache
webcachectl stop
Start the isadb Instance
oidmon connect=iasdb start
oidctl server=oidldapd instance=s flags="-port 4032 -host myhost" start
Summary
This chapter has given you an overview of Application Server 10g and all of its components. Application Server 10g is now the encapsulation of many application-related products, each with unique features and functionality. Remember, many of the components are optional, and few shops use all of them. The main points of this chapter can be summarized as follows:
- Oracle has implemented a flexible architecture for Application Server 10g, allowing administrators to define multiple servers to manage the application load.
- Application Server 10g architectures may be defined as two-tiered, three-tiered, or four-tiered, and there may be many independent servers at each tier.
- Multiple Application Server 10g instances can be grouped into farms, which are instances that share a common metadata repository.
- Common Application Server 10g instances can be grouped into clusters, which are instances that share a common definition and J2EE applications.
- The Oracle Management Server (OMS) helps with management and definition of farms, clusters, and instances, making it simpler to manage complex application environments.
- TopLink is an important component of Oracle Application Server 10g that allows Java objects to be stored for future reference by other Java tasks.
- For those who install the Application Server 10g Infrastructure, the Enterprise Manager is a fast and easy way to perform administrative functions.
- Application Server 10g defines a hierarchy of components, instances, clusters, and farms. Each farm has many clusters, each cluster has many instances, and each instance has many components.
- Application Server 10g also provides 59 command-line interfaces. The most popular command-line interfaces are emctl, dcmctl, and opmnctl.
Now that we have completed the high-level tour, we are ready to move on to examine the Application Server 10g Infrastructure in more detail. The Infrastructure includes SSO, LDAP, and the all-important metadata repository.
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 This chapter is from Oracle Application Server 10g Administration Handbook, by Garmany and Burleson. (McGraw-Hill/Osborne, 2004, ISBN: 0072229586). Check it out at your favorite bookstore today. Buy this book now.
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