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https://issues.apache.org/jira/browse/DRILL-6745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16619940#comment-16619940
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weijie.tong commented on DRILL-6745:
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No , I plan to replace the MurmurHash used by the HashJoin, HashAggregate and
Exchange node. We ever evaluated the hot performance of Drill , and found the
hash method is the hotspot.
> Introduce the xxHash algorithm as another hash64 option
> -------------------------------------------------------
>
> Key: DRILL-6745
> URL: https://issues.apache.org/jira/browse/DRILL-6745
> Project: Apache Drill
> Issue Type: Improvement
> Reporter: weijie.tong
> Assignee: weijie.tong
> Priority: Major
> Fix For: 1.15.0
>
>
> Supply another hash64 algorithm : xxHash as a replacer to MurmurHash.
> According to [xxHash|http://cyan4973.github.io/xxHash/] report , it is more
> faster than MurmurHash and projects like Spark ,Presto have adopted it.
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