HP Serviceguard Developer's Toolbox Version B.12.00.00 For HP-UX and Linux

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When the monitor function detects an application failure, it returns fail status that is a non-zero

number to HP Serviceguard, thereby enabling it to take appropriate action (failover, restart

and so on) based on the package configuration.

• Attribute Definition File (toolbox.1)

The cmmakepkg command uses the toolbox.1 file to include the application specific

configuration variables into the package configuration file. The ADF also defines various

properties of the variables specified such as type, legal values, comments, and so on. When

the package configuration file is validated or applied using the cmcheckconf and

cmapplyconf command respectively, the values assigned to the application specific variables

are verified for conformity with the properties defined in the ADF file.

Figure 1 Toolbox architecture

Serviceguard Module

Deﬁnitions

Toolbox Module

Deﬁnitions

User-edited Package

Conﬁguration File

Serviceguard Speciﬁc

Conﬁguration and Logic

Application Speciﬁc

Conﬁguration and Logic

Sources

Updates

Sources Sources

Calls Calls

Calls

Monitors

Start/Stop

Serviceguard

Package Conﬁg

Package Conﬁguration

Component of Cluster

Conﬁguration Database

(CDB)

Serviceguard

Package Manager

Toolbox Toolkit

Module Script

Application Speciﬁc

Start/Stop Scripts

Serviceguard Master

Control Script

Application

(e.g., MySQL)

As shown in Figure 1 (page 9), when the package configuration file is created including the

Toolbox module, edited, and applied, the configuration variables are updated in the cluster

configuration database (CDB). Serviceguard package manager sources these values from the

CDB which includes details of scripts to be executed in a sequence to bring up or bring down

the package. The sequence includes the execution of the tkit_module.sh script. After

sourcing, it calls the Serviceguard master control script to execute the sequence of the scripts.

The Serviceguard master control script executes each script in the sequence passed by the

Serviceguard master control script by passing start, stop, or validate arguments.

Modular Toolkit framework 9