[jira] [Comment Edited] (BEAM-5713) Flink portable runner schedules all tasks of streaming job on same task manager

["Thomas Weise (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BEAM-5713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16646887#comment-16646887 ] 

Thomas Weise edited comment on BEAM-5713 at 10/11/18 6:48 PM:
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I added more tasks and they are all squeezed into the same slots (only 8 out of 144 task slots are used).

!image-2018-10-11-11-43-50-333.png|width=50%!

 


was (Author: thw):
I added more tasks and they are all squeezed into the same slots (only 8 out of 144 task slots are used).

!image-2018-10-11-11-43-50-333.png!

 

> Flink portable runner schedules all tasks of streaming job on same task manager
> -------------------------------------------------------------------------------
>
>                 Key: BEAM-5713
>                 URL: https://issues.apache.org/jira/browse/BEAM-5713
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-flink
>    Affects Versions: 2.8.0
>            Reporter: Thomas Weise
>            Assignee: Maximilian Michels
>            Priority: Major
>              Labels: portability, portability-flink
>         Attachments: Different SlotSharingGroup.png, With RichParallelSourceFunction and parallelism 5.png, image-2018-10-11-11-43-50-333.png
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> The cluster has 9 task managers and 144 task slots total. A simple streaming pipeline with parallelism of 8 will get all tasks scheduled on the same task manager, causing the host to be fully booked and the remaining cluster idle.



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