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https://issues.apache.org/jira/browse/IMPALA-3741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenzhe Zhou resolved IMPALA-3741.
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Fix Version/s: Impala 4.0
Target Version: Kudu_Impala, Impala 4.0 (was: Kudu_Impala)
Resolution: Fixed
> Push bloom filters to Kudu scanners
> -----------------------------------
>
> Key: IMPALA-3741
> URL: https://issues.apache.org/jira/browse/IMPALA-3741
> Project: IMPALA
> Issue Type: Task
> Components: Backend
> Affects Versions: Kudu_Impala
> Reporter: Matthew Jacobs
> Assignee: Wenzhe Zhou
> Priority: Major
> Labels: kudu, performance
> Fix For: Impala 4.0
>
>
> Impala relies on bloom filters to reduce number of rows from coming out of
> the scan node for selective joins.
> Queries get up to 20x speedup, not having bloom filter support in Kudu will
> create a big performance gap between Parquet and Kudu.
> https://github.com/cloudera/Impala/blob/cdh5-trunk/be/src/util/bloom-filter.h
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