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Sun OpenDS Standard Edition 2.2 Deployment Planning Guide

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1.  Overview of Sun OpenDS Standard Edition

2.  Overview of the Directory Server

3.  Overview of the Proxy Server

4.  Building Blocks of the Proxy Server

Overview of the Proxy Server

Network Groups


Workflow Element

Load Balancing Using the Proxy

Proportional Load Balancing

Failover Load Balancing

Saturation Load Balancing

Data Distribution Using the Proxy

Numeric Distribution

Lexico Distribution

DN Pattern Distribution

Global Index Catalog

5.  Example Deployments Using the Directory Server

6.  Example Deployments Using the Proxy Server

7.  Simple Proxy Deployments Using the Command Line Interface

8.  Deploying Advanced Proxy Architectures

Overview of the Proxy Server

As illustrated in Figure 4-1, a client request is managed by the proxy before being forwarded to the data source.

A client request follows this path through the proxy:

  1. The request is attached to a network group based on the criteria and a QOS policy is assigned.

  2. The network group forwards the request to a workflow, which defines the naming context.

  3. The workflow forwards the request to a workflow element, which defines the how the data request will be treated. That is, if it will go through distribution or load balancing.

  4. Once it has gone through the distribution or load balancing flow, the request is sent to the data source.

Figure 4-1
High Level Presentation of Proxy Elements
This graphic shows the flow of client requests through the proxy elements.