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Posted to issues@flink.apache.org by "Zhu Zhu (Jira)" <ji...@apache.org> on 2022/06/24 12:04:00 UTC

[jira] [Closed] (FLINK-28193) Enable to identify whether a job vertex contains source/sink operators

     [ https://issues.apache.org/jira/browse/FLINK-28193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhu Zhu closed FLINK-28193.
---------------------------
    Resolution: Done

Done via cef491eab34f904cf67f8a0392d48c03def249ff

> Enable to identify whether a job vertex contains source/sink operators
> ----------------------------------------------------------------------
>
>                 Key: FLINK-28193
>                 URL: https://issues.apache.org/jira/browse/FLINK-28193
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Coordination
>            Reporter: Zhu Zhu
>            Assignee: Zhu Zhu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.16.0
>
>
> Speculative execution does not support sources/sinks in the first version. Therefore, it will not create speculation instances for vertices which contains source/sink operators.
> Note that a job vertex with no input/output does not mean it is a source/sink vertex. Multi-input sources can have input. And it's possible that the vertex with no output edge does not contain any sink operator. Besides that, a new sink with topology can spread the sink logic into multiple job vertices connected with job edges.



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