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Posted to issues@flink.apache.org by "Chesnay Schepler (JIRA)" <ji...@apache.org> on 2019/01/10 14:09:01 UTC

[jira] [Closed] (FLINK-2836) Cyclic Topologies not supported

     [ https://issues.apache.org/jira/browse/FLINK-2836?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chesnay Schepler closed FLINK-2836.
-----------------------------------
    Resolution: Won't Fix

The storm-compatibility layer will be removed in FLINK-10509.

> Cyclic Topologies not supported
> -------------------------------
>
>                 Key: FLINK-2836
>                 URL: https://issues.apache.org/jira/browse/FLINK-2836
>             Project: Flink
>          Issue Type: Improvement
>          Components: Storm Compatibility
>            Reporter: Matthias J. Sax
>            Priority: Major
>
> Currently, FlinkTopologyBuilder cannot handle cyclic topologies. In order to implement this feature correctly, FlinkTopologyBuilder must first *detect* cycles in the topology and assembly the Flink streaming program accordingly.
> As Storm allows for arbitrary dataflow structure, multiple cycles would be allows. Not sure if Flink can handle those.



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