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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-22) DirectPipelineRunner: support for unbounded collections
Date Tue, 10 May 2016 21:40:12 GMT

    [ https://issues.apache.org/jira/browse/BEAM-22?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15279008#comment-15279008
] 

ASF GitHub Bot commented on BEAM-22:
------------------------------------

GitHub user tgroh opened a pull request:

    https://github.com/apache/incubator-beam/pull/320

    [BEAM-22] Reuse DoFns in ParDoEvaluators

    Be sure to do all of the following to help us incorporate your contribution
    quickly and easily:
    
     - [ ] Make sure the PR title is formatted like:
       `[BEAM-<Jira issue #>] Description of pull request`
     - [ ] Make sure tests pass via `mvn clean verify`. (Even better, enable
           Travis-CI on your fork and ensure the whole test matrix passes).
     - [ ] Replace `<Jira issue #>` in the title with the actual Jira issue
           number, if there is one.
     - [ ] If this contribution is large, please file an Apache
           [Individual Contributor License Agreement](https://www.apache.org/licenses/icla.txt).
    
    ---
    
    This allows the runner to avoid cloning DoFns for every input bundle.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/tgroh/incubator-beam reuse_dofns_pardoevaluators

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/incubator-beam/pull/320.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 #320
    
----
commit f018c75ef3ca1b60fc990bd88031d5419c571b87
Author: Thomas Groh <tgroh@google.com>
Date:   2016-05-10T21:06:27Z

    Reuse DoFns in ParDoEvaluators
    
    This allows the runner to avoid cloning DoFns for every input bundle.

----


> 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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