Document Scope and Audience Guide to this Document
1.1 Document Scope and Audience
This document is written for application developers and administrators who are developing or deploying Web-based applications on one or more clusters. It also contains information that is useful for business analysts and system architects who are evaluating WebLogic Server or considering the use of WebLogic Server clusters for a particular application. The topics in this document are primarily relevant to planning, implementing, and supporting a production environment that includes WebLogic Server clusters. Key guidelines for software engineers who design or develop applications that will run on a WebLogic Server cluster are also addressed. It is assumed that the reader is familiar with Java EE, HTTP, HTML coding, and Java programming servlets, JSP, or EJB development.1.2 Guide to this Document
■ This chapter, Chapter 1, Introduction and Roadmap, describes the organization of this guide. ■ Chapter 2, Understanding WebLogic Server Clustering, provides a brief introduction to WebLogic Server clusters. ■ Chapter 3, Communications In a Cluster, describes how WebLogic Server instances communicate to one another in a cluster and how they utilize a cluster-wide JNDI tree. ■ Chapter 4, Understanding Cluster Configuration, explains how the information that defines the configuration of a cluster is stored and maintained, and identifies the methods you can use to accomplish cluster configuration tasks. ■ Chapter 5, Load Balancing in a Cluster, describes the load balancing support that a WebLogic Server cluster provides for different types of objects, and provides planning and configuration considerations for architects and administrators. 1-2 Using Clusters for Oracle WebLogic Server ■ Chapter 6, Failover and Replication in a Cluster, describes how WebLogic Server detects failures in a cluster, and summarizes how failover is accomplished for different types of objects. ■ Chapter 7, Whole Server Migration, describes the different migration mechanisms supported by WebLogic Server. ■ Chapter 8, Service Migration, describes the service migration mechanisms supported by WebLogic Server: ■ Chapter 9, Cluster Architectures, describes alternative architectures for a WebLogic Server cluster. ■ Chapter 10, Setting up WebLogic Clusters, contains guidelines and instructions for configuring a WebLogic Server cluster. ■ Chapter 11, Clustering Best Practices, provides recommendations for design and deployment practices that maximize the scalability, reliability, and performance of applications hosted by a WebLogic Server cluster. ■ Chapter 12, Troubleshooting Common Problems, provides guidelines on how to prevent and troubleshoot common cluster problems. ■ Appendix A, The WebLogic Cluster API, describes the WebLogic Cluster API. ■ Appendix B, Configuring BIG-IP Hardware with Clusters, describes options for configuring an F5 BIG-IP controller to operate with a WebLogic Server cluster. ■ Appendix C, Configuring F5 Load Balancers for MANWAN Failover, explains how to configure F5 hardware load balancers. ■ Appendix D, Configuring Radware Load Balancers for MANWAN Failover, describes how to configure Radware hardware load balancers.1.3 Related Documentation
Parts
» Oracle Fusion Middleware Online Documentation Library
» Document Scope and Audience Guide to this Document
» What Are the Benefits of Clustering? What Are the Key Capabilities of a Cluster?
» Servlets and JSPs EJBs and RMI Objects
» Getting Connections with Clustered JDBC Failover and Load Balancing for JDBC Connections
» Pure-Java Versus Native Socket Reader Implementations
» Client Communication via Sockets
» How WebLogic Server Creates the Cluster-Wide JNDI Tree
» How WebLogic Server Updates the JNDI Tree Client Interaction with the Cluster-Wide JNDI Tree
» Load Balancer Configuration Requirements Load Balancers and the WebLogic Session Cookie
» Related Programming Considerations How Session Connection and Failover Works with a Load Balancer
» Round-Robin Load Balancing Weight-Based Load Balancing
» Transactional Collocation Optimization for Collocated Objects
» Methods of Configuring Clusters Load Balancing for JDBC Connections
» Using Replication Groups HTTP Session State Replication
» Connection with Load Balancing Hardware Failover with Load Balancing Hardware
» Configuration Requirements for Cross-Cluster Replication
» Configuring Session State Replication Across Clusters
» Clustering Objects with Replica-Aware Stubs
» Failover and JDBC Connections Understanding Server and Service Migration
» Migration Terminology Oracle Fusion Middleware Online Documentation Library
» Features That Use Leasing Leasing Versions
» Determining Which Type of Leasing To Use High-availability Database Leasing
» Non-database Consensus Leasing Leasing
» Preparing for Automatic Whole Server Migration
» Configuring Automatic Whole Server Migration
» Startup Process in a Cluster with Migratable Servers
» Automatic Whole Server Migration Process
» Manual Whole Server Migration Process Administration Server Role in Whole Server Migration
» Migratable Server Behavior in a Cluster Node Manager Role in Whole Server Migration
» Cluster Master Role in Whole Server Migration
» JMS-related Services JTA Transaction Recovery Service
» Custom Store Availability for JMS Services Default File Store Availability for JTA
» Best Practices for Targeting JMS when Configuring Automatic Service Migration
» Architecture Web Application Tiers
» Combined Tier Architecture De-Militarized Zone DMZ Load Balancer Proxy Plug-In
» No Collocation Optimization Firewall Restrictions
» Multi-Tier Proxy Architecture Proxy Architecture Benefits Proxy Architecture Limitations
» Proxy Plug-In Versus Load Balancer
» DMZ with Two Firewall Configuration
» Dynamic Cluster Address If you do not explicitly define a cluster address
» Configuration Roadmap Install WebLogic Server
» Starting a WebLogic Server Cluster
» Configure Node Manager Configure Load Balancing Method for EJBs and RMIs
» Sample web.xml This section contains a sample deployment descriptor file
» Accessing Applications Via the Proxy Server Ensure that applications clients will
» Configure Replication Groups Configure Migratable Targets for Pinned Services
» Migrating When the Currently Active Host is Unavailable Use this migration
» Configure Multicast Time-To-Live TTL Configure Multicast Buffer Size
» Cluster-Related Configuration Options Follow Usage and Configuration Guidelines
» Manual Migration of the JTA Transaction Recovery Service State Management in a Cluster
» Naming Considerations Administration Server Considerations
» Firewall Considerations Avoiding Problems
» Check the Server Version Numbers Check the Multicast Address Check the CLASSPATH Value
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