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Posted to issues@flink.apache.org by "Gyula Fora (JIRA)" <ji...@apache.org> on 2014/12/08 17:13:13 UTC

[jira] [Closed] (FLINK-1279) Change default partitioning setting for low parallelism stream sources from forward to distribute

     [ https://issues.apache.org/jira/browse/FLINK-1279?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gyula Fora closed FLINK-1279.
-----------------------------

> Change default partitioning setting for low parallelism stream sources from forward to distribute
> -------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-1279
>                 URL: https://issues.apache.org/jira/browse/FLINK-1279
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>            Reporter: Gyula Fora
>            Assignee: Gyula Fora
>
> The default partitioning setting for all operators including stream sources are forward at the moment. 
> In many cases sources have lower parallelism therefore the forward connection might cause that only a subset of the operators will receive data.
> Partitioning from source to the first operators should be changed to distribute data to all parallel instances of the first operators, when the source parallelism is lower.



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