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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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