Support xxHash in Bloom filter
- Dominant language
- Java
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Description
xxHash is proved perform better than Murmur3Hash in case of small inputs.
**Reporter**: [Junjie Chen](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=junjie) / @chenjunjiedada
**Note**: *This issue was originally created as [PARQUET-1553](https://issues.apache.org/jira/browse/PARQUET-1553). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*
Contributor guide
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Research direction
Start by locating the Bloom filter implementation and the existing Murmur3Hash usage in parquet-java, then trace how hash functions are selected. Confirm the supported xxHash variant and identify the relevant Bloom filter tests; done means xxHash is supported and the existing behavior remains covered.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- data-engineering
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100