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Posted to issues@flink.apache.org by "Gabor Horvath (JIRA)" <ji...@apache.org> on 2016/02/18 12:51:18 UTC

[jira] [Assigned] (FLINK-3422) Scramble HashPartitioner hashes

     [ https://issues.apache.org/jira/browse/FLINK-3422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gabor Horvath reassigned FLINK-3422:
------------------------------------

    Assignee: Gabor Horvath

> Scramble HashPartitioner hashes
> -------------------------------
>
>                 Key: FLINK-3422
>                 URL: https://issues.apache.org/jira/browse/FLINK-3422
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 0.10.2
>            Reporter: Stephan Ewen
>            Assignee: Gabor Horvath
>            Priority: Critical
>             Fix For: 1.0.0
>
>
> The {{HashPartitioner}} used by the streaming API does not apply any hash scrambling against bad user hash functions.
> We should apply a murmor or jenkins hash on top of the hash code, similar as in the {{DataSet}} API.



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