IBM BJ0NJML Integration Guide - Page 202

Configuring the Cron Task

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Configuring the Cron Task Configuring the Cron Task The interface table cron task, the data import cron task, and the Java Message Service (JMS) queue cron task are cluster-aware functions. By default, the cron task framework runs a task on a randomly chosen server. If you want to configure your cron task to run on a specific application server within your cluster, configure the cron task as shown in the following example. The name of the cron task instance is instance1. 1 In the Cron Task Setup application, set the TARGETENABLED property for instance1 to 1. 2 In the application server1 setup, set the -D crontaskname.instance1 to 1, and restart the server. In this configuration example, the task is not pushed to another server if the targeted server stops. To replace a stopped server, set the -D crontaskname.instance1 value to 1, then restart the application server that resumes the polling. To configure a group of servers to support failover, set the -D crontaskname.instance1 value to 1 in each server. The integration framework prevents more than one instance of the cron task from running at the same time. 188 Integration Guide

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Configuring the Cron Task
188
Integration Guide
Configuring the Cron Task
The interface table cron task, the data import cron task, and the Java Message
Service (JMS) queue cron task are cluster-aware functions. By default, the cron
task framework runs a task on a randomly chosen server.
If you want to configure your cron task to run on a specific application server
within your cluster, configure the cron task as shown in the following example.
The name of the cron task instance is instance1.
1
In the Cron Task Setup application, set the TARGETENABLED property for
instance1
to 1.
2
In the application
server1
setup, set the
–D
crontaskname
.
instance1
to 1,
and restart the server.
In this configuration example, the task is not pushed to another server if the
targeted server stops. To replace a stopped server, set the –D
crontaskname
.
instance1
value to 1,
then restart the application server that resumes
the polling.
To configure a group of servers to support failover, set the
–D
crontaskname.instance1
value to 1 in each server. The integration framework
prevents more than one instance of the cron task from running at the same time.