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Solaris Cluster Data Services Developer's Guide
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Updated: July 2014, E39646-01
Oracle
®
Solaris Cluster Data Services Developer's Guide
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Chapter 1 Overview of Resource Management
Oracle Solaris Cluster Application Environment
Resource Group Manager Model
Description of a Resource Type
Description of a Resource
Description of a Resource Group
Resource Group Manager
Callback Methods
Programming Interfaces
Resource Management API
Data Service Development Library
Oracle Solaris Cluster Agent Builder
Resource Group Manager Administrative Interface
Oracle Solaris Cluster Manager
clsetup Utility
Administrative Commands
Chapter 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
Chapter 3 Resource Management API Reference
RMAPI Access Methods
RMAPI Shell Commands
RMAPI Resource Commands
Resource Type Command
Resource Group Commands
Cluster Command
C Functions
Resource Functions
Resource Type Functions
Resource Group Functions
Cluster Functions
Utility Function
RMAPI Callback Methods
Arguments That You Can Provide to Callback Methods
Callback Method Exit Codes
Control and Initialization Callback Methods
Administrative Support Methods
Net-Relative Callback Methods
Monitor Control Callback Methods
Chapter 4 Modifying a Resource Type
Overview of Modifying a Resource Type
Setting Up the Contents of the Resource Type Registration File
Resource Type Name
Specifying the #$upgrade and #$upgrade_from Directives
Changing the RT_version in an RTR File
What Happens When a Cluster Administrator Upgrades
Determining Installation Requirements and Packaging
Before You Change the RTR File
Changing Monitor Code
Changing Method Code
Determining the Packaging Scheme to Use
Documentation to Provide for a Modified Resource Type
Information About What to Do Before Installing an Upgrade
Information About When to Upgrade Resources
Information About Changes to Resource Properties
Chapter 5 Sample Data Service
Overview of the Sample Data Service
Defining the Resource Type Registration File
Overview of the RTR File
Resource Type Properties in the Sample RTR File
Resource Properties in the Sample RTR File
System-Defined Properties in the RTR File
Extension Properties in the RTR File
Providing Common Functionality to All Methods
Identifying the Command Interpreter and Exporting the Path
Declaring the PMF_TAG and SYSLOG_TAG Variables
Parsing the Function Arguments
Generating Error Messages
Obtaining Property Information
Controlling the Data Service
How the Start Method Works
What the Start Method Does
Verifying the Configuration
Starting the Application
Start Exit Status
How the Stop Method Works
What the Stop Method Does
Stopping the Application
Stop Exit Status
Defining a Fault Monitor
How the Probe Program Works
What the Probe Program Does
Obtaining Property Values
Checking the Reliability of the Service
Comparing Restart With Failover
Restarting the Data Service
Probe Exit Status
How the Monitor_start Method Works
What the Monitor_start Method Does
Starting the Probe
How the Monitor_stop Method Works
What the Monitor_stop Method Does
Stopping the Monitor
Monitor_stop Exit Status
How the Monitor_check Method Works
Handling Property Updates
How the Validate Method Works
What the Validate Method Does
Validate Method Parsing Function
Validating Confdir
Validate Exit Status
How the Update Method Works
What the Update Method Does
Stopping the Monitor With Update
Restarting the Monitor
Update Exit Status
Chapter 6 Data Service Development Library
DSDL Overview
Managing Configuration Properties
Starting and Stopping a Data Service
Implementing a Fault Monitor
Accessing Network Address Information
Debugging the Resource Type Implementation
Enabling Highly Available Local File Systems
Chapter 7 Designing Resource Types
Resource Type Registration File
Validate Method
Start Method
Stop Method
Monitor_start Method
Monitor_stop Method
Monitor_check Method
Update Method
Description of Init, Fini, and Boot Methods
Designing the Fault Monitor Daemon
Supporting Resource Types That Perform Resource Migration From Their Stop Method
SCHA_TARGET_NODES Query
Pre_evict Resource Property
Example of a Giveover of a Resource Group With Live Migration
Error Handling
Chapter 8 Sample DSDL Resource Type Implementation
X Font Server
X Font Server Configuration File
TCP Port Number
ORCL.xfnts RTR File
Naming Conventions for Functions and Callback Methods
scds_initialize Function
xfnts_start Method
Validating the Service Before Starting the X Font Server
Starting the Service With svc_start
Returning From svc_start
xfnts_stop Method
xfnts_monitor_start Method
xfnts_monitor_stop Method
xfnts_monitor_check Method
ORCL.xfnts Fault Monitor
xfonts_probe Main Loop
svc_probe Function
Determining the Fault Monitor Action
xfnts_validate Method
xfnts_update Method
Chapter 9 Oracle Solaris Cluster Agent Builder
Agent Builder Overview
Before You Use Agent Builder
Using Agent Builder
Analyzing the Application
Installing and Configuring Agent Builder
Agent Builder Screens
Starting Agent Builder
Navigating Agent Builder
Browse Command
Agent Builder Menus
Agent Builder File Menu
Agent Builder Edit Menu
Using the Create Screen
Using the Configure Screen
Using the Agent Builder Korn Shell-Based $hostnames Variable
Using Property Variables
List of Property Variables
Resource Property Variables
Resource Type Property Variables
Resource Group Property Variables
Syntax of Property Variables
How Agent Builder Substitutes Property Variables
Reusing Code That You Create With Agent Builder
How to Clone an Existing Resource Type
Editing the Generated Source Code
How to Use the Command-Line Version of Agent Builder
Directory Structure That Agent Builder Creates
Agent Builder Output
Source and Binary Files
Utility Scripts and Man Pages That Agent Builder Creates
Support Files That Agent Builder Creates
Package Directory That Agent Builder Creates
rtconfig File
Chapter 10 DSDL API Functions
General-Purpose Functions
Initialization Functions
Retrieval Functions
Failover and Restart Functions
Execution Functions
Property Functions
Network Resource Access Functions
Host Name Functions
Port List Functions
Network Address Functions
Fault Monitoring Using TCP Connections Functions
PMF Functions
Fault Monitor Functions
Utility Functions
Chapter 11 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
Chapter 12 Security for Data Services
Storing Application Passwords in Private Strings
Invoking Application Programs with Least Privilege
Using the resource_security Property
Using the application_user Property
Using the scha_check_app_user Command
Executing the Application Under a Specified Oracle Solaris Project
Appendix A Sample Data Service Code Listings
Resource Type Registration File Listing
Start Method Code Listing
Stop Method Code Listing
gettime Utility Code Listing
PROBE Program Code Listing
Monitor_start Method Code Listing
Monitor_stop Method Code Listing
Monitor_check Method Code Listing
Validate Method Code Listing
Update Method Code Listing
Appendix B DSDL Sample Resource Type Code Listings
xfnts.c File Listing
xfnts_monitor_check Method Code Listing
xfnts_monitor_start Method Code Listing
xfnts_monitor_stop Method Code Listing
xfnts_probe Method Code Listing
xfnts_start Method Code Listing
xfnts_stop Method Code Listing
xfnts_update Method Code Listing
xfnts_validate Method Code Listing
Appendix 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
Appendix D Document Type Definitions for the CRNP
SC_CALLBACK_REG XML DTD
NVPAIR XML DTD
SC_REPLY XML DTD
SC_EVENT XML DTD
Appendix E CrnpClient.java Application
Contents of CrnpClient.java
Index
Index Numbers and Symbols
Index A
Index B
Index C
Index D
Index E
Index F
Index G
Index H
Index I
Index J
Index K
Index L
Index M
Index N
Index O
Index P
Index Q
Index R
Index S
Index T
Index U
Index V
Index W
Index X
Language:
English
J
Java
sample application that uses CRNP
Example of Creating a Java Application That Uses the CRNP
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