JavaScript is required to for searching.
Skip Navigation Links
Exit Print View
Oracle Solaris Cluster Data Services Developer's Guide     Oracle Solaris Cluster 4.0
search filter icon
search icon

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

CRNP Concepts

How the CRNP Works

CRNP Semantics

CRNP Message Types

How a Client Registers With the Server

Assumptions About How Administrators Set Up the Server

How the Server Identifies a Client

How SC_CALLBACK_REG Messages Are Passed Between a Client and the Server

Contents of an SC_CALLBACK_REG Message

How the Server Replies to a Client

Contents of an SC_REPLY Message

How a Client Is to Handle Error Conditions

How the Server Delivers Events to a Client

How the Delivery of Events Is Guaranteed

Contents of an SC_EVENT Message

How the CRNP Authenticates Clients and the Server

Example of Creating a Java Application That Uses the CRNP

How to Set Up Your Environment

How to Start Developing Your Application

How to Parse the Command-Line Arguments

How to Define the Event Reception Thread

How to Register and Unregister Callbacks

How to Generate the XML

How to Create the Registration and Unregistration Messages

How to Set Up the XML Parser

How to Parse the Registration Reply

How to Parse the Callback Events

How to Run the Application

A.  Sample Data Service Code Listings

B.  DSDL Sample Resource Type Code Listings

C.  Requirements for Non-Cluster-Aware Applications

D.  Document Type Definitions for the CRNP

E. Application


Chapter 12

Cluster Reconfiguration Notification Protocol

This chapter provides information about the Cluster Reconfiguration Notification Protocol (CRNP). The CRNP enables failover and scalable applications to be “cluster aware.” More specifically, the CRNP provides a mechanism that enables applications to register for, and receive subsequent asynchronous notification of, Oracle Solaris Cluster reconfiguration events. Data services that run within the cluster and applications that run outside the cluster can register for notification of events. Events are generated when membership in a cluster changes and when the state of a resource group or a resource changes.

Note - The SUNW.Event resource type implementation provides highly available CRNP services on Oracle Solaris Cluster. The implementation of this resource type is described in more detail in the SUNW.Event(5) man page.

This chapter covers the following topics: