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Contents Preface Who Should Use This Guide Before You Read This Book How This Book Is Organized Conventions Used in This Book Typographic Conventions Symbols Default Paths and File Names Shell Prompts Related Documentation Books in This Documentation Set Other Server Documentation Accessing Sun Resources Online Contacting Sun Technical Support Related Third-Party Web Site References Sun Welcomes Your Comments Chapter 1 Product Concepts J2EE Platform Overview J2EE Applications Containers J2EE Services Web Services Client Access External Systems and Resources Application Server Components Administrative Domains Instances Clusters Node Agents Named Configurations Load Balancer Plug-in High Availability Database (HADB) Active Nodes Spare Nodes Sample Spare Node Configuration 1 Sample Spare Node Configuration 2 Sample HADB Architecture Session Persistence Chapter 2 Planning your Environment Establishing Performance Goals Estimating Throughput Estimating Load on Application Server Instances Calculating Maximum Number of Concurrent Users Calculating Think Time Calculating Average Response Time Calculating Requests Per Minute Estimating Load on the HADB Persistence Frequency for HADB Session Size and Scope Per Request for HADB Planning the Network Configuration to Meet Your Performance Goals Estimating Bandwidth Requirements Calculating Bandwidth Required Estimating Peak Load Configuring Subnets Choosing Network Cards Network Settings for HADB Planning for Availability Rightsizing Availability Using Clusters to Improve Availability Adding Redundancy to the System Identifying Failure Classes Using HADB Redundancy Units to Improve Availability Using HADB Spare Nodes to Improve Fault Tolerance Planning Failover Capacity Design Decisions Number of Application Server Instances Required Number of HADB Nodes Required Number of Hosts HADB Storage Capacity Required Designing for Peak Load or Steady State Load Chapter 3 Selecting a Topology Common Requirements General Requirements HADB Nodes and Machines Load Balancer Configuration Co-located Topology Example Configuration Variation of Co-located Topology Separate Tier Topology Example Configuration Variation of Separate Tier Topology Comparison of Topologies Determining Which Topology to Use Appendix A Checklist for Deployment Index Copyright Index Next Copyright 2004 Sun Microsystems, Inc. All rights reserved.
Copyright 2004 Sun Microsystems, Inc. All rights reserved.
