[jira] [Resolved] (FLINK-3255) Chaining behavior should not depend on parallelism

["Stephan Ewen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-3255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephan Ewen resolved FLINK-3255.
---------------------------------
    Resolution: Fixed

Fixed via 7ee719f7e577728fa253f64ad5bd15881b6ddd25

> Chaining behavior should not depend on parallelism
> --------------------------------------------------
>
>                 Key: FLINK-3255
>                 URL: https://issues.apache.org/jira/browse/FLINK-3255
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming
>    Affects Versions: 0.10.1
>            Reporter: Stephan Ewen
>            Assignee: Stephan Ewen
>             Fix For: 0.10.1
>
>
> Currently, operators are chained more aggressively when the parallelism is one. That makes debugging tougher as it changes threading behavior.
> The benefits are also limited: Real installations where that type of efficiency would be needed would not run in parallelism 1, or would not use a partitioning/broadcast step there (if explicitly required to run parallelism 1).
> In the future, when we want to allow parallelism to be adjusted dynamically, this will be even more tricky.



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