[SPARK-23381] Murmur3 hash generates a different value from other implementations

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Incomplete
• Affects Version/s: 2.2.1
• Component/s: Spark Core
• Labels: bulk-closed
• Assignee: Unassigned
• Reporter: Shintaro Murakami
• Created: 10/Feb/18 14:28
• Updated: 21/May/19 04:11
• Resolved: 21/May/19 04:11

Description

Murmur3 hash generates a different value from the original and other implementations (like Scala standard library and Guava or so) when the length of a bytes array is not multiple of 4.  

Issue Links

• relates to: SPARK-23469 HashingTF should use corrected MurmurHash3 implementation
• links to: [Github] Pull Request #20568 (mrkm4ntr)
• links to: [Github] Pull Request #20630 (gatorsmile)