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Dependencies
- JobScheduler
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- can handle dependencies
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- at job chain, job and order level:
- Pre-processing can be defined at job level to check if required resources are available
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- .
- Pre-processing can also be used to set environment variables and to communicate with other JobScheduler instances etc.
- Examples would be to check if records in a database were available, if a previous job produced some required output etc.
- Post-processing can be used to check if the processing was successful, if required results are produced or to decide on the next processing step
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- Examples would be to check if the total records in a database were are more than 1 Million, then to start a database re-index job and else to skip that job.
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- JobScheduler provides a JITL Job CheckRunHistory to check if a particular job was executed successfully during a given period, e.g. during the
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- last 24 hours.
- This example
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- job chain has a first node as CheckRunHistory to check if JobA1 was successfully executed in the last 24 hours.
- In
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- this example
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- the job chain will abort and will end in an error
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- state, however,
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- as per
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- requirement more
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- complex scenarios can be configured
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- , e.
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- g.
- wait for 2 hours,
- send
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- an alert or
- start another job.
- By
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- using JobScheduler configuration and its internal API
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- more
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- possible dependencies can be checked.
- See JITL job documentation for more information JobSchedulerCheckRunHistory.xml.
Diagram of Job Chain
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Job
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CheckRunHistory
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<?xml version="1.0" encoding="ISO-8859-1"?> <job title="Checks the last job run" order="yes" stop_on_error="no"> <settings > <mail_on_error ><![CDATA[yes]]></mail_on_error> <mail_on_warning ><![CDATA[yes]]></mail_on_warning> <log_level ><![CDATA[debug9]]></log_level> </settings> <params > <param name="JobName" value="Demo/MoneySuperMarket/Scenario03/JobA1"/> <param name="start_time" value="-1"/> <param name="message" value="The Job 1. \$\{JOB_NAME\} 2. [JOB_NAME] was not running successfully today until 15:00h "/> <param name="query" value="isCompletedBefore "/> </params> <script language="java" java_class="sos.scheduler.CheckRunHistory.JobSchedulerCheckRunHistoryJSAdapterClass"/> <run_time /> </job> |