[jira] [Commented] (BEAM-156) Implement Quiescence Signalling in the InProcessPipelineRunner

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BEAM-156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15406911#comment-15406911 ] 

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

Github user asfgit closed the pull request at:

    https://github.com/apache/incubator-beam/pull/754


> 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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