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This article is about methods that can be used with the JobScheduler for executing jobs within a job chain Jobs within a Job Chain at the same time.

See the How To Synchronize Job Execution Across Job Chains article for methods about synchronizing the execution of jobs Jobs in different Job Chains.

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Using JITL Jobs for Parallel Execution within a Job Chain

There are a number of methods Three JITL Jobs are available for configuring the parallel execution of Jobs in a Job Chain.

Static configuration

For the static configuration of the parallel execution of different Jobs:

:

  • JobSchedulerJobChainSplitter
    • The Splitter Job is used to divide processing of a main Job Chain into a number of child Job Chain segments that are then processed in parallel.
    • A Join or Sync Job may be defined later in the Job Chain to bring processing of these child segments back to a single thread.
    • The Splitter Job generates separate Orders for each of the parallel child Job Chain segments. The Splitter Job will then move processing of the main Job Chain to a Join or Sync Job, if such a Job is defined later in the main Job Chain. See the Job Chains article for more information about the patterns that can be executed with the Splitter Job.
    • Using the JITL split and join Jobs
  • JobSchedulerJoinOrders
    • This pattern is used for parallelization within a single Job Chain.
  • Display feature availability
    StartingFromRelease1.11.4
    • :
    • The Join Job is used to start or continue processing of a main Job Chain after a predefined number of Orders running on child segments of a Job Chain have been completed
    • The Join Job is designed for a large number of parallel Orders and is significantly faster for this purpose than the Sync Job described below. Note that the Join Job can only be used within a Job Chain.
    • Note also that the Join Job waits for a
    • specific
    • predefined number of Orders to be completed - it does not require specific Orders.
  • See the following articles for examples and downloads using the split and join Jobs:
    • Using the JITL split and sync Jobs:
  • This pattern is used for parallelization across Job Chains.
    • The
  • JobSchedulerSynchronizeJobChains
    • The main function of the Sync Job is to synchronize the execution of Jobs in different Job Chains. However, the Sync Job can also be used with
    • Versions of Job Scheduler older than
    • JobScheduler versions 1.11.
    • 4
    • 3 and older to synchronize the execution of Jobs within a Job Chain
    • but note that it
    • . Note that the Sync Job is only suitable for use in situations where performance is not an issue - i.e. situations with only a small number of parallel Orders - typically one Order for each Job Chain.
    • See the  How to split and sync jobs in a job chain
      Display feature availability
      EndingWithRelease1.11.4
             article for an example showing the use of the Sync job within a Job Chain.
    • See the How To Synchronize Job Execution Across Job Chains article for information about using the Sync Job to synchronize the execution of Jobs in different Job Chains

Static configuration

For the static configuration of the parallel execution of different Jobs:

Dynamic configuration

For the static configuration of a dynamically set Any number of instances of a job that are to be executed in parallel:

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Job can be dynamically generated and executed in parallel in a Job Chain. This is done using a custom Generate Job and the JITL Join Job.

The following articles describe examples and provide download files demonstrating the dynamic configuration of parallel job instances:

See also

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