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Oracle Solaris Cluster Data Services Developer's Guide     Oracle Solaris Cluster 4.0
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Document Information


1.  Overview of Resource Management

2.  Developing a Data Service

3.  Resource Management API Reference

4.  Modifying a Resource Type

5.  Sample Data Service

6.  Data Service Development Library

7.  Designing Resource Types

8.  Sample DSDL Resource Type Implementation

9.  Oracle Solaris Cluster Agent Builder

10.  Generic Data Service

11.  DSDL API Functions

12.  Cluster Reconfiguration Notification Protocol

A.  Sample Data Service Code Listings

B.  DSDL Sample Resource Type Code Listings

C.  Requirements for Non-Cluster-Aware Applications

Multihosted Data

Using Symbolic Links for Multihosted Data Placement

Host Names

Multihomed Hosts

Binding to INADDR_ANY as Opposed to Binding to Specific IP Addresses

Client Retry

D.  Document Type Definitions for the CRNP

E. Application


Client Retry

To a network client, a failover or switchover appears to be a crash of the logical host followed by a fast reboot. Ideally, the client application and the client-server protocol are structured to do some amount of retrying. If the application and protocol already handle the case of a single server crashing and rebooting, they can also handle the case of the resource group being taken over or switched over. Some applications might elect to retry endlessly. More sophisticated applications notify the user that a long retry is in progress and enable the user to choose whether to continue.