13.1.10 Executing a single job on multiple agent hosts

(1) Operation

In a company, the system management department collects log data from all agent hosts in a cloud environment at a fixed time every day.

In version 11-00 or earlier, to carry out this task, a job must be defined for each agent host from which log data is to be collected.

Figure 13‒19: Example in which a job is defined for each agent host

Furthermore, if agent hosts are added or deleted by auto-scaling, jobs must also be added or deleted.

Figure 13‒20: Example in which jobs are added or deleted

In the above figure, Agent host C is added as a result of scaling out. Therefore, Job C must also be added.

To Page Top

(2) Problem

• Execute a single job on multiple agent hosts.

• Add or delete agent hosts without having to manually add or delete jobs.

To Page Top

(3) Solution

You can use broadcast execution of a flexible job to execute a single job on multiple agents simultaneously. This requires a broadcast agent.

Figure 13‒21: Example in which a broadcast agent distributes a job to multiple agent hosts

If agent hosts are added or deleted by auto-scaling, the broadcast agent receives heartbeats from destination agents, and automatically expands or shrinks the job distribution scope. Therefore, there is no need to add or delete jobs.

Figure 13‒22: Example in which a broadcast agent automatically expands the distribution scope

To Page Top

(4) Configuration procedure

1. Set up the broadcast agent.

2. Set up the destination agents.

3. In JP1/AJS3, create a jobnet in which flexible jobs are defined.

4. Register the created jobnet (in which flexible jobs are defined) for execution.

To Page Top

(5) Manual references

Type	item	Location
Overview	Flexible job	3.1.1(1)(a) Standard job in the manual JP1/Automatic Job Management System 3 Overview
	Example of defining a flexible job for broadcast execution	2.4.11 Executing a job on multiple execution agents simultaneously (example of defining a jobnet that uses flexible jobs) in the JP1/Automatic Job Management System 3 System Design (Work Tasks) Guide
	Notes on using flexible Jobs	7.8 Notes on using flexible jobs in the JP1/Automatic Job Management System 3 System Design (Work Tasks) Guide
	Example of a system configuration used for broadcast execution	2.10 Considerations for executing a job by broadcast execution in the JP1/Automatic Job Management System 3 System Design (Configuration) Guide
Configuration		21.3.2 Setup procedure to execute a job by broadcast execution in the JP1/Automatic Job Management System 3 Configuration Guide
Dialog boxes		12.4.12 Define Details - [Flexible Job] dialog box in the JP1/Automatic Job Management System 3 Operator's Guide

To Page Top