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Posted to commits@beam.apache.org by "Thomas Weise (JIRA)" <ji...@apache.org> on 2018/10/11 01:34:00 UTC

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

    [ https://issues.apache.org/jira/browse/BEAM-5713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16645821#comment-16645821 ] 

Thomas Weise commented on BEAM-5713:
------------------------------------

Can be reproduced with branch: https://github.com/lyft/beam/tree/micah_process_streaming_leak

Simplified single task pipeline: https://gist.github.com/tweise/09ec82446f74bb534d488209ad88e75f

> 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
>            Priority: Major
>              Labels: portability, portability-flink
>
> 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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