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https://issues.apache.org/jira/browse/BEAM-22?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15206602#comment-15206602
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ASF GitHub Bot commented on BEAM-22:
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GitHub user tgroh opened a pull request:
https://github.com/apache/incubator-beam/pull/64
[BEAM-22] Schedule roots less aggressively
The excess scheduling of known-empty bundles can consume excessive
resources, especially with the default CachedThreadPool executor service.
Removes an unnecessary synchronized block (the map is already
thread-safe)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tgroh/incubator-beam ippr_less_aggression
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-beam/pull/64.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #64
----
----
> DirectPipelineRunner: support for unbounded collections
> -------------------------------------------------------
>
> Key: BEAM-22
> URL: https://issues.apache.org/jira/browse/BEAM-22
> Project: Beam
> Issue Type: Improvement
> Components: runner-direct
> Reporter: Davor Bonaci
> Assignee: Thomas Groh
>
> DirectPipelineRunner currently runs over bounded PCollections only, and
> implements only a portion of the Beam Model.
> We should improve it to faithfully implement the full Beam Model, such as add
> ability to run over unbounded PCollections, and better resemble execution
> model in a distributed system.
> This further enables features such as a testing source which may simulate
> late data and test triggers in the pipeline. Finally, we may want to expose
> an option to select between "debug" (single threaded), "chaos monkey" (test
> as many model requirements as possible), and "performance" (multi-threaded).
> more testing (chaos monkey)
> Once this is done, we should update this StackOverflow question:
> http://stackoverflow.com/questions/35350113/testing-triggers-with-processing-time/35401426#35401426
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