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https://issues.apache.org/jira/browse/BEAM-833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Groh updated BEAM-833:
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Description:
This primarily means calling the {{BoundedSource#splitAtFraction}} API during
the evaluation of a BoundedReadEvaluatorFactory - this can return the work via
addUnprocessedElements.
At a later point, the {{MonitorRunnable}} within
{{ExecutorServiceParallelExecutor}} can examine currently evaluating work and
invoke a {{TransformExecutor#split}} method, which can return to the runner
some amount of input, which can be scheduled to use more of the available
threads.
> Exercise Dynamic Splitting in the DirectRunner
> ----------------------------------------------
>
> Key: BEAM-833
> URL: https://issues.apache.org/jira/browse/BEAM-833
> Project: Beam
> Issue Type: Improvement
> Components: runner-direct
> Reporter: Thomas Groh
> Assignee: Thomas Groh
>
> This primarily means calling the {{BoundedSource#splitAtFraction}} API during
> the evaluation of a BoundedReadEvaluatorFactory - this can return the work
> via addUnprocessedElements.
> At a later point, the {{MonitorRunnable}} within
> {{ExecutorServiceParallelExecutor}} can examine currently evaluating work and
> invoke a {{TransformExecutor#split}} method, which can return to the runner
> some amount of input, which can be scheduled to use more of the available
> threads.
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