Sun-microsystems Portal Server 6 Manuale Utente Pagina 93
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Working with Portal Server Building Modules
Chapter 5 Creating Your Portal Design 93
No Single Point of Failure
Portal Server natively supports the no single point of failure (NSPOF) scenario.
NSPOF is built on top of the best effort scenario, and in addition, introduces
replication and load balancing.
Figure 5-4 No Single Point of Failure Example
Balancer
Portal
Server
Directory
Server
Master
Replica
Portal
Server
Directory
Server
Master
Replica
Multi-Master
Replication
Instance
Building Module 1
Building Module 2
SSe
Se
s
Search
Engine
Database
SSe
Se
s
Search
Engine
Database
Load
Client
- Portal Server 6 1
- Deployment Planning Guide 1
- Contents 3
- Contents 5 5
- Contents 7 7
- List of Figures 9
- List of Tables 11
- Before You Read This Book 13
- Who Should Read This Book 13
- How This Book Is Organized 14
- Conventions Used in This Book 15
- Related Documentation 16
- Other Server Documentation 17
- Sun Welcomes Your Comments 19
- Portal Server Architecture 21
- Types of Portals 22
- Portal Server Capabilities 23
- Sun Java System Portal Server 24
- Secure Remote Access 25
- Portal Server in Secure Mode 26
- Applications 27
- Identity Management 30
- Software Packaging 31
- Software Categories 31
- Figure 1-4 SRA Deployment 35
- Architecture 37
- Proxy Configuration 39
- Gateway and SSL Support 39
- Gateway Access Control 40
- Gateway Logging 41
- Split Tunneling 43
- Netlet Proxy 44
- Initialization 45
- Validating Credentials 45
- Access Control 46
- Security 46
- Special Operations 46
- Rewriter Proxy 48
- Business Objectives 51
- Technical Goals 53
- Search Engine 57
- Personalization 58
- Aggregation and Integration 58
- Pre-Deployment Considerations 61
- Portal Sizing Tips 62
- Portal Sizing 63
- Peak Numbers 64
- Concurrent Users 65
- Average Session Time 66
- Search Engine Factors 66
- Portal Desktop Configuration 67
- Hardware and Applications 68
- Back-End Servers 68
- Transaction Time 68
- Workload Conditions 69
- LDAP Transaction Numbers 70
- SRA Sizing 72
- Requirements 73
- Netlet Usage Characteristics 74
- Advanced Gateway Settings 75
- Scalability 76
- Creating Your Portal Design 79
- Portal Design Approach 80
- Logical Portal Architecture 81
- Portal Server and Scalability 83
- System Availability 85
- Degrees of High Availability 85
- Portal 86
- SMTP/IMAP 87
- Best Effort 92
- No Single Point of Failure 93
- Transparent Failover 96
- Building Module Constraints 97
- Directory Server Requirements 98
- Search Engine Structure 98
- Elements of Portal Use Cases 100
- Using Platform Security 103
- Limiting Access Control 104
- 3. Restart amserver services 110
- Basic SRA Configuration 112
- Disable Netlet 113
- Proxylet 114
- Multiple Gateway Instances 115
- Netlet and Rewriter Proxies 116
- Rewriter 117
- Netlet traffic 119
- HTTP traffic 119
- Using an Accelerator 120
- Netlet with 3rd Party Proxy 121
- Reverse Proxy 122
- Designing for Localization 123
- Integration Design 124
- Independent Software Vendors 125
- Implementing Single Sign-On 128
- Portal Desktop Design 128
- Working with Providers 129
- Client Support 131
- The Production Environment 133
- Documenting the Portal 134
- Monitoring Portal Server 135
- CPU Utilization 136
- Thread Usage 137
- Portal Usage Information 138
- Installed Product Layout 139
- Directories Installed for SRA 140
- Configuration Files 141
- Analysis Tools 143
- What to Look For 145
- Considerations 145
- What to look for 149
- Considerations: 149
- Consider the following: 149
- Tuning Parameters for 150
- /etc/system 150
- Table B-3 TCP/IP Options 151
- Portal Server 153
- /welcome.html 157
- XMLConfig 157
- Troubleshooting Your Portal 159
- Deployment 159
- Log Files 160
- Troubleshooting Portal Server 161
- Troubleshooting SRA 162
- Introduction to 163
- ./shooter.sh 164
- SRA Log Files 165
- Gateway-hostname 166
- Gateway-profile-name 166
- Portal Deployment Worksheets 167
- Table E-1 General Questions 168
- Portal Assessment Worksheets 169
- Portal Design Task List 171
- 2. Design 172
- Java System 173
- Sun Java System Portal 173
- 4. Deployment Production 176
- Limitations Using Linux 179
- Glossary 181
- Section B 184
- Section E 185
- Index 185 185
- Section H 186
- Section M 187
- Index 187 187
- Section O 188
- Section Q 189
- Index 189 189
- Section T 190
- Section W 191
- Index 191 191
- Section X 192
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