[FLINK-3422] Scramble HashPartitioner hashes

• Type: Improvement
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.10.2
• Fix Version/s: 1.0.0
• Assignee: Gabor Horvath
• Reporter: Stephan Ewen
• Created: 16/Feb/16 21:16
• Updated: 28/Feb/19 11:15
• Resolved: 02/Mar/16 16:32

Description

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.