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Scope

• This article explains configuration for the Classic JobScheduler Agent
  FEATURE AVAILABILITY ENDING WITH RELEASE 1.10
• For general configuration of the JobScheduler Universal Agent see JobScheduler Universal Agent - Installation & Operation
  FEATURE AVAILABILITY STARTING FROM RELEASE 1.10  
• For dynamic assignment of JobScheduler Universal Agents to Jobs see: 

  • Jira
    server SOS JIRA columns key,summary,type,created,updated,due,assignee,reporter,priority,status,resolution serverId 6dc67751-9d67-34cd-985b-194a8cdc9602 key JS-1189

• Consider the How to split and sync a dynamic number of job instances for execution with Agents article.

Process Classes for use with JobScheduler Agents

• We assume that we have a job in a job chain

...

• to be executed on a JobScheduler Agent.
• This requires a process_class that is assigned to the job.
• Please read

...

• How to configure a JobScheduler Master and Agent to work together to know how you create the process class for a JobScheduler Agent and how you assign it to a job.

Process Class configuration

Now we assume that we have use multiple JobScheduler Agents and we want that a job executes the job to be executed on different JobScheduler Agents depending on parameters.

...

• Create

...

• a

...

• process

...

• class

...

• (e.g.

...

• with

...

• the

...

• name

...

• _agents_)

...

• in

...

• JOE

...

• with

...

• empty

...

• values

...

• for

...

• host

...

• and

...

• port

...

• .

...

• The

...

• values

...

• for

...

• host

...

• and

...

• port

...

• are

...

• set

...

• dynamically.

...

• This should result in the following configuration file ./config/live/agents.process_class.xml

...

• :

...

• Code Block
  language html/xml

...

• <?xml version="1.0" encoding="ISO-8859-1"?>

...

• <process_class max_processes="30"/>

• Assign the process class to the

  order

  job in JOE. In this example the job

  is named

  has the name shellOnDynamicAgent and calls hostname as a shell command.

  No Format

  So

  you

  get

  should see the

  following

  content in the configuration

  file

  _

  ./config/live/shellOnDynamicAgent.job.xml

  _

  :

  Code Block
  language html/xml
  <?xml version="1.0" encoding="ISO-8859-1"?> <job process_class="agents" order="yes" stop_on_error="no"> <script language="shell"> <![CDATA[ #! /bin/sh # returns the hostname of the agent hostname ]]> </script> <run_time/> </job>

Job configuration

• Create the following job

  (

  , e.g. setAgent

  )

  , and

  put

  add it

  into

  to the job chain as the forerunner of the

  agent

  JobScheduler Agent job.

  No Format

  This

  job

  change

  modifies the

  process_class

  setting

  of

  the

  successor

  job

  in

  the

  job

  chain

  according

  to the

  order

  parameter _

  parameters agent_host_

  and

  _agent_port

  _.

  :

  Code Block
  language html/xml
  <?xml version="1.0" encoding="ISO-8859-1"?> <job order="yes" stop_on_error="no"> <params /> <script language="java:javascript"> <><![CDATA[ function spooler_process()\ { var curOrder = spooler_task.order; var agentHost = curOrder.params.value('agent_host'); var agentPort = curOrder.params.value('agent_port'); var nextJob = curOrder.job_chain_node.next_node.job; spooler_log.info("Params agentHost:agentPort = "+agentHost+":"+agentPort); spooler_log.info("before: "+nextJob.process_class.remote_scheduler); nextJob.process_class.remote_scheduler = agentHost+":"+agentPort; spooler_log.info("after: "+nextJob.process_class.remote_scheduler); return true; \ } ]]> <></script> <run_time /> </job>

Job chain configuration

• Add

  Put

  these jobs

  into

  to a job chain

  (

  , e.g. jobChainWithAgentJob

  ).

  :
  
  Image Modified
  

  No Format So you have the configuration file _

  
  

  This will result in the job chain configuration file ./config/live/jobChainWithAgentJob.job_chain.xml

  _

  :

  Code Block
  language html/xml
  <?xml version="1.0" encoding="ISO-8859-1"?> <job_chain orders_recoverable="yes" visible="yes"> <job_chain_node state="setAgent" job="setAgent" next_state="callAgent" error_state="error"/> <job_chain_node state="callAgent" job="shellOnDynamicAgent" next_state="success" error_state="error"/> <job_chain_node state="success"/> <job_chain_node state="error"/> </job_chain>

Order configuration

• Add an order to the job chain jobChainWithAgentJob for each JobScheduler Agent

  you want

  .

  No Format

  For

  example

  one agent is on HostA with port 4444 and another agent is on HostB with port 4444. The orders must have the parameter _

  , one JobScheduler Agent runs on HostA with port 4444 and another JobScheduler Agent runs on HostB with port 4444. The order has to be assigned the parameters agent_host_

  and

  _agent_port

  _

  .

  Image Modified

  No Format So you have the configuration files _

  
  This should result in the order configuration files ./config/live/jobChainWithAgentJob,hostA-4444.order.xml

  _

  and

  _

  ./config/live/jobChainWithAgentJob,hostB-4444.order.xml

  _

  :

  Code Block
  language html/xml
  <?xml version="1.0" encoding="ISO-8859-1"?> <order> <params > <!-- for use with JobScheduler releases before 1.10 <param name="agent_host" value="HostA"/> --> <!-- for use with JobScheduler releases starting with 1.10 --> <param name="agent_host" value="http://HostA"/> <param name="agent_port" value="4444"/> </params> <run_time/> </order>

  Code Block
  language html/xml
  <?xml version="1.0" encoding="ISO-8859-1"?> <order> <params > <!-- for use with JobScheduler releases before 1.10 <param name="agent_host" value="HostB"/> --> <!-- for use with JobScheduler releases starting with 1.10 --> <param name="agent_host" value="http://HostB"/> <param name="agent_port" value="4444"/> </params> <run_time/> </order>