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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

Analyzing the Application for Suitability

Determining the Interface to Use

Setting Up the Development Environment for Writing a Data Service

How to Set Up the Development Environment

Transferring a Data Service to a Cluster

Setting Standard Properties

Cluster Properties

Resource Type Properties

Resource Properties

Resource Group Properties

Resource Property Attributes

Node List Properties

Setting Resource and Resource Type Properties

Declaring Resource Type Properties

Declaring Resource Properties

Declaring Extension Properties

Implementing Callback Methods

Accessing Resource and Resource Group Property Information

Idempotence of Methods

How Methods Are Invoked in Zones

Generic Data Service

Controlling an Application

Starting and Stopping a Resource

Using Start and Stop Methods

Deciding Which Start and Stop Methods to Use

Using the Optional Init, Fini, and Boot Methods

Using the Init Method

Using the Fini Method

Guidelines for Implementing a Fini Method

Using the Boot Method

Monitoring a Resource

Implementing Monitors and Methods That Execute Exclusively in the Global Zone

Adding Message Logging to a Resource

Providing Process Management

Providing Administrative Support for a Resource

Implementing a Failover Resource

Implementing a Scalable Resource

Validation Checks for Scalable Services

Writing and Testing Data Services

Using TCP Keep-Alives to Protect the Server

Testing HA Data Services

Coordinating Dependencies Between Resources

Legal RGM Names

RGM Legal Names

Rules for Names Except Resource Type Names

Format of Resource Type Names

RGM Values

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

D.  Document Type Definitions for the CRNP

E. Application


Providing Process Management

The RMAPI and the DSDL provide process management facilities to implement resource monitors and resource control callbacks. The RMAPI defines the following facilities:

Process Monitor Facility (PMF): pmfadm and rpc.pmfd

Provides a means of monitoring processes and their descendants, and restarting processes if they die. The facility consists of the pmfadm command for starting and controlling monitored processes, and the rpc.pmfd daemon.

The DSDL provides a set of functions (preceded by the name scds_pmf_) to implement the PMF functionality. See PMF Functions for an overview of the DSDL PMF functionality and for a list of the individual functions.

The pmfadm(1M) and rpc.pmfd(1M) man pages describe this command and daemon in more detail.


A program for running a child program while holding a file lock. This command is convenient to use in shell scripts.

The halockrun(1M) man page describes this command in more detail.


A program for running a child program under timeout control. This command is convenient to use in shell scripts.

The DSDL provides the scds_hatimerun() function to implement the features of the hatimerun command.

The hatimerun(1M) man page describes this command in more detail.