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Posted to issues@flink.apache.org by "Gabor Horvath (JIRA)" <ji...@apache.org> on 2016/02/18 13:14:18 UTC

[jira] [Comment Edited] (FLINK-3422) Scramble HashPartitioner hashes

    [ https://issues.apache.org/jira/browse/FLINK-3422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15152209#comment-15152209 ] 

Gabor Horvath edited comment on FLINK-3422 at 2/18/16 12:13 PM:
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Hi, I am a Masters student from Hungary and a newcomer to Flink. I plan to look into this issue during the weekend to get more familiar with the code. In case I get stuck, Márton Balassi and Gábor Gévay will help me. I am also planning to do a GSoC project during this summer.


was (Author: xazax):
Hi, I am a Masters student from Hungary and a newcomer to Flink. I plan to look into this issue during the weekend to get more familiar with the code.

> 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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