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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5985) Flink treats every task as stateful (making topology changes impossible)
Date Mon, 20 Mar 2017 09:56:41 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15932414#comment-15932414
] 

ASF GitHub Bot commented on FLINK-5985:
---------------------------------------

Github user uce commented on the issue:

    https://github.com/apache/flink/pull/3543
  
    Could you merge this @StefanRRichter? I think it is one of the last blockers for 1.2.1
and it's a pretty critical issue...


> Flink treats every task as stateful (making topology changes impossible)
> ------------------------------------------------------------------------
>
>                 Key: FLINK-5985
>                 URL: https://issues.apache.org/jira/browse/FLINK-5985
>             Project: Flink
>          Issue Type: Bug
>          Components: State Backends, Checkpointing
>    Affects Versions: 1.2.0
>            Reporter: Gyula Fora
>            Assignee: Stefan Richter
>            Priority: Critical
>             Fix For: 1.3.0, 1.2.1
>
>
> It seems  that Flink treats every Task as stateful so changing the topology is not possible
without setting uid on every single operator.
> If the topology has an iteration this is virtually impossible (or at least gets super
hacky)



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