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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-156) Implement Quiescence Signalling in the InProcessPipelineRunner
Date Wed, 27 Jul 2016 23:56:20 GMT

    [ https://issues.apache.org/jira/browse/BEAM-156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15396679#comment-15396679
] 

ASF GitHub Bot commented on BEAM-156:
-------------------------------------

GitHub user tgroh opened a pull request:

    https://github.com/apache/incubator-beam/pull/746

    Use AutoValue for StepTransformResult

    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 is a cleanup PR for future changes to StepTransformResult, primarily as part of
    BEAM-156


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

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

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

    https://github.com/apache/incubator-beam/pull/746.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 #746
    
----
commit c1f66b67c82e149ef27d19c88993b0ab15d19b35
Author: Thomas Groh <tgroh@google.com>
Date:   2016-07-26T16:38:13Z

    Use AutoValue for StepTransformResult

----


> Implement Quiescence Signalling in the InProcessPipelineRunner
> --------------------------------------------------------------
>
>                 Key: BEAM-156
>                 URL: https://issues.apache.org/jira/browse/BEAM-156
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-java-core
>            Reporter: Thomas Groh
>            Assignee: Thomas Groh
>
> A pipeline is quiescent when the following two properties hold:
>   There are no triggers that can fire, given the current processing time and watermark
>   All pending elements cannot make progress until a side input produces additional output
> This is approximately equivalent to: If no more input is received, the pipeline will
not perform any additional processing absent advances in processing time or event time
> See also: https://docs.google.com/document/d/1fZUUbG2LxBtqCVabQshldXIhkMcXepsbv2vuuny8Ix4/edit#



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