[jira] [Closed] (FLINK-3047) Local batch execution: set number of task manager slots to the maximum parallelism

["Maximilian Michels (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-3047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maximilian Michels closed FLINK-3047.
-------------------------------------
    Resolution: Not A Problem

> Local batch execution: set number of task manager slots to the maximum parallelism
> ----------------------------------------------------------------------------------
>
>                 Key: FLINK-3047
>                 URL: https://issues.apache.org/jira/browse/FLINK-3047
>             Project: Flink
>          Issue Type: Bug
>          Components: Batch, Local Runtime
>    Affects Versions: 0.10.0
>            Reporter: Maximilian Michels
>            Assignee: Maximilian Michels
>            Priority: Minor
>             Fix For: 1.0.0, 0.10.1
>
>
> The number of task slots for local execution are determined by the maximum parallelism found. However, if a default parallelism has been set, this parallelism is used as the upper bound for the number of task slots.
> We should change this to always use the maximum parallelism as the number of task slots. Otherwise jobs which include operators with a parallelism higher than the default parallelism fail to execute locally.
> For example, this fails
> {noformat}
> ExecutionEnvironment env = ..
> env.setParallelism(2);
> DataSet<Integer> set = env.fromElements(1,2,3,4)
>     .map(el -> el+1)
>     .setParallelism(4);
> set.print();
> {noformat}



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