Exit Print View

Oracle Secure Global Desktop Administration Guide for Version 4.6

Document Information

Preface

1.  Networking and Security

2.  User Authentication

3.  Publishing Applications to Users

4.  Configuring Applications

5.  Client Device Support

6.  SGD Client and Webtop

7.  SGD Servers, Arrays, and Load Balancing

Arrays

The Structure of an Array

Replicating Data Across the Array

Communication Between Array Members

Secure Intra-Array Communication

Managing Arrays and SGD Servers

Array Resilience

How Array Resilience Works

Failover Stage

Recovery Stage

Examples of How Array Resilience Works

Primary Server Goes Down

Array Splits into Two Arrays

Configuring Arrays

How to Enable Secure Intra-Array Communication

How to Add a Server to an Array (Secure Intra-Array Communication Enabled)

How to Add a Server to an Array (Secure Intra-Array Communication Disabled)

How to Change the Primary Server in an Array

How to Remove a Server From an Array

How to Change the Cipher Suite for Secure Intra-Array Communication

Configuring Array Resilience

How to Enable Array Failover for an Array

How to Configure the Array Failover Grace Period

How to Show the Backup Primaries List for an Array

How to Add an Entry to the Backup Primaries List

How to Change the Position of an Entry in the Backup Primaries List

How to Delete an Entry From the Backup Primaries List

How to Configure the Find New Primary Timeout

How to Configure the Action When Failover Ends

How to Rebuild an Array Manually

Load Balancing

User Session Load Balancing

Using The Load-Balancing JSP Technology Page to Distribute User Sessions

How to Configure the Load-Balancing JSP Technology Page to Distribute User Sessions

Using an External Mechanism to Distribute User Sessions

How to Configure the Load-Balancing JSP Technology Page for an External Load Balancing Mechanism

How to Configure the Load-Balancing JSP Technology Page for Use With My Desktop

Additional Load-Balancing JSP Technology Page Configuration

Using Another Webtop

Localized Splash Screen

Other Variables

Application Session Load Balancing

Application Load Balancing

Defining the Application Servers to Run the Application

Selecting the Load Balancing Method

Load Balancing Groups

How Application Load Balancing Works

Dynamic Application Servers and Load Balancing

Application Server Availability

Application Server Filters

Load Balancing Groups

Server Affinity

The Relative Power of the Application Servers

Example Relative Power Calculation 1

Example Relative Power Calculation 2

The Application Server With the Least Load

Fewest Application Sessions

Example Load Calculation Using Fewest Application Sessions

Least CPU Usage

Example Load Calculation Using Least CPU Usage

Most Free Memory

Example Load Calculation Using Most Free Memory

How Advanced Load Management Works

Tuning Application Load Balancing

Application Server's Relative Power

Load Balancing Listening Ports

SGD Requests Updates From an Application Server

Frequency of the Load Calculation

Frequency of Updates to the Primary SGD Server

Reliability of CPU and Memory Data

Frequency of Updates to Array Members

Editing Application Load Balancing Properties

The Global Load Balancing Properties File

The Application Server Load Balancing Properties File

How to Create an Application Server Load Balancing Properties File

The Load Balancing Service Properties File

SGD Web Server and Administration Console

Introducing the SGD Web Server

Securing the SGD Web Server

The httpd.conf.secure File

Using the Administration Console

Supported Browsers for the Administration Console

Starting the Administration Console

Deploying the Administration Console on Other Web Application Containers

Avoiding SGD Datastore Update Problems

Performing Array Operations Using the Administration Console

Administration Console Configuration Settings

Number of Search Results

Synchronization Wait Period

Searching and Displaying LDAP Data

Session Timeout

Securing Access to the Administration Console

Monitoring and Logging

The SGD Datastore

User Sessions and Application Sessions

User Sessions

Idle User Session Timeout

Application Sessions

Anonymous Users and Shared Users

Using Log Filters to Troubleshoot Problems With an SGD Server

Selecting a Component and Subcomponent

Selecting the Severity

Using Wildcards

Selecting a Destination

Using Log Files

Using Log Handlers

Examples of Using Log Filters

Viewing Log Output

Using Log Filters for Auditing

Viewing Audit Log Information

Examples of Using Log Filters for Auditing

Using Log Filters to Troubleshoot Problems With Protocol Engines

Examples of Using PE Log Filters

PE Log File Destinations

Viewing PE Log Output

Resetting a PE Log Filter

SGD Web Server Logging

Tomcat JSP Technology Container Logs

Apache Web Server Logs

SGD Client Logging

SGD Server Certificate Stores

The CA Certificate Truststore

How to Import CA Certificates or Certificate Chains into the CA Certificate Truststore

The Client Certificate Store

How to Create a Client Certificate CSR for an SGD Server

How to Install a Client Certificate for an SGD Server

SGD Installations

About Your SGD Installation

bin Directory

etc Directory

lib Directory

var Directory

webserver Directory

Backing Up and Restoring an SGD Installation

How to Make a Full Backup of an SGD Installation

Restoring a Damaged SGD Component

Binaries, Scripts, and Template Files

Login Scripts

Server Configuration

Global Configuration

The Local Repository

Automatic Log Archives

SGD Printing

SGD Web Server, Web Services, and the Webtop

How to Do a Full Restore of an SGD Installation

Troubleshooting Arrays and Load Balancing

Troubleshooting Array Resilience

Showing Status Information For an SGD Array

Enabling Array Resilience Logging

Troubleshooting Clock Synchronization Issues

Troubleshooting Advanced Load Management

The Load Balancing Service Is Not Working

SGD Ignores an Application Server Load Balancing Properties File

One of the Application Servers Is Never Picked

One of the Application Servers Is Always Picked

Two Identical Application Servers, But One Runs More Applications Than the Other

The SGD Server Log File Shows an Update Received for an Unknown ID

SGD Uses Too Much Network Bandwidth

Users Cannot Connect to an SGD Server When It Is In Firewall Traversal Mode

Users Cannot Relocate Their Sessions

A.  Global Settings and Caches

B.  Secure Global Desktop Server Settings

C.  User Profiles, Applications, and Application Servers

D.  Commands

E.  Login Scripts

F.  Third-Party Legal Notices

Glossary

Index

Chapter 7

SGD Servers, Arrays, and Load Balancing

This chapter describes how to configure and monitor Oracle Secure Global Desktop (SGD) servers and arrays. Some system administration features of SGD, such as the Administration Console, log filters, and installation backups are also covered.

This chapter includes the following topics: