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Table of Contents Image Oracle9i Application Server Best Practices
Release 1 (v1.0.2.2)

Part Number A95201-01
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1 Availability of Java Applications

Availabilty Overview
Key Practices
Measuring Availability
Hardware Availability
Software Availability
Data Availability and Reliability of Operational Procedures
Users' View of Application Availability
Hardware Redundancy and Load Balancers
Application Server Cluster
Web Cache Cluster
Firewall Clusters
Commercial Balancers
HA-HW-1: Hardware Components
HA-HW-2: Load Balancers
HA-HW-3: Configure mod_jserv
HA-HW-4: Independent Servers
Software Design Principles
HA-SW-1: Java Synchronization
HA-SW-2: Resource Use
HA-SW-3: Session State
HA-SW-4: Catch-All Exceptions
HA-SW-5: Finally Clause
HA-SW-6: Retry Transactions Once
HA-SW-7: Database Update
Periodic Operations Procedures
HA-OP-1: Backup Schedule
HA-OP-2: Server Restarts
HA-OP-3: Mid-Tier File Synchronization
HA-OP-4: Document Procedures

2 Performance and Scalability

Performance and Scalability Overview
Performance Tradeoffs
Servlets and JavaServer Pages: A Case Study
User Information
Use of Hashtables
endRequest() Called Manually
Servlets and JavaServer Pages: Design and Implementation
PERF-1: Storing State Information
PERF-2: Connection Pooling and Caching
PERF-3: Statement Caching
PERF-4: Mid-Tier Caching
PERF-5: Database Connections
PERF-6: Database and SQL Tuning
PERF-7: Memory Leaks
PERF-8: Spawning Threads
PERF-9: SingleThreadModel in Servlets
PERF-10: Servlets Startup Operations
PERF-11: Separate JSPs
PERF-12: Static or Dynamic Include in JSPs
PERF-13: Thread-Safe JSPs
PERF-14: Sessions in JSPs
PERF-15: Use Forward in JSPs
PERF-16: JSP Buffer
Servlets and JavaServer Pages: Deployment
PERF-17: Multiple JServs
PERF-18: Java Heap Size
PERF-19: JServ autoreload.classes
PERF-20: Preload Servlets
PERF-21: Pre-translate JSPs
PERF-22: JSP debug flag and developer_mode
PERF-23: Dynamic Monitoring Service
Java Performance
PERF-24: Synchronization
PERF-25: Hashtable and Vector
PERF-26: Reuse Objects
PERF-27: Unused Objects and Operations
PERF-28: StringBuffer
Oracle HTTP Server Tuning
PERF-29: TCP/IP Parameters
PERF-30: KeepAlive
PERF-31: MaxClients
PERF-32: DNS Lookup
PERF-33: Access Logging
PERF-34: SSLSessionCacheTimeout
PERF-35: FollowSymLinks
PERF-36: AllowOverride
PERF-37: DMS and Apache Server Status
Performance Testing
PERF-38: Performance Methodology
PERF-39: Performance Goals
PERF-40: Performance Evaluation
PERF-41: Performance Testing
PERF-42: Test Driver
PERF-43: Testing Personnel
Dynamic Monitoring Service (DMS)
Code Example
References and Resources
Oracle Documentation

3 Pooling

Pooling Overview
Pooling Example
Pooling versus Sharing
Pools in Oracle9iAS
Apache Demons
POOL-1: Client-Request Processes
JDBC Connections
POOL-2: JDBC Connection Cache
POOL-3: Connection Authentication
Servlets and Connection Cache
POOL-4: Database Updates
POOL-5: Linked Servlets
Holding Connections Across Calls
POOL-6: min and max Parameters
POOL-7: Cache Usage
Multiple Applications in the Same Java VM
Note for Multithreaded Servlets
POOL-9: JDBC Statement Cache.
JDBC OCI Connection Pools
BC4J Application Modules
POOL-10: Application Module Pools
Servlets and Jserv threads
POOL-11: Servlet Attributes
JavaServer Pages (JSPs)
POOL-12: ConnBeans
POOL-13: Single-Threaded JSPs
POOL-14: Perl Programs
Portal or PL/SQL
Database Shared Servers
POOL-15: Shared Server Mode
Pooling Your Own Resources

4 HTTP Security

Security Overview
Firewall Architecture
SEC-1: Server Placement
SEC-2: Restrict Traffic Through Exterior Firewall
SEC-3: Restrict Traffic Through Interior Firewall
SEC-4: Proxies on the DMZ
SEC-5: Safeguard Information of Record
SEC-6: Restrict Traffic to Approved Types
Process Development and Deployment
SEC-7: Privileges and Modules
SEC-8: Buffer Overflow
SEC-9: Cross-Site Scripting Attacks
SEC-10: Exported Products
SEC-11: Passwords and Accounts
SEC-12: Security Patches
SEC-13: Unused Services
SEC-14: Root Privileges
SEC-15: "r" Commands
Global Server ID Certificates and 128-Bit Encryption
SEC-16: Fail Weak Encryption
Performance Issues
SEC-17: Performance Testing
SEC-18: Sequential HTTPS Transfers
SEC-19: Separate Virtual Servers
Client Certificates
SEC-20: Organization Identity
SEC-21: User Identity
SEC-22: Expiring Certificates
SEC-23: Certificate Reissues
SEC-24: Certificate Revocations
EXPORT versus DOMESTIC Encryption Issues
Export Law Changes

5 Using Oracle9iAS Web Cache with Third-Party Servers

Oracle9iAS Web Cache Overview
Integration with Third-Party Application Servers
Web-site Configuration
Cacheability Rules and Expiration Rules
BEA WebLogic 6.0 Java Applications
WebLogic SnoopServlet
WebLogic SessionServlet
IBM WebSphere 3.5.2 Java Applications
WebSphere Snoop Servlet
WebSphere SessionSample
Microsoft IIS 5.0 ASP Applications
ServerVariables_Jscript ASP
Cookie_Jscript ASP



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