Jim Apple created IMPALA-6311:
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Summary: Evaluate smaller FPP for Bloom filters
Key: IMPALA-6311
URL: https://issues.apache.org/jira/browse/IMPALA-6311
Project: IMPALA
Issue Type: Task
Components: Perf Investigation
Reporter: Jim Apple
The Bloom filters are created by estimating the NDV and then using the FPP of
75% to get the right size for the filter. This is may be too high to be very
useful - if our filters are currently filtering more than 75% out, then it is
only because we are overestimating NDV.
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