tree d87574e5a2c9cf39bdd1df5a047e994072778895
parent a3b24d7617bff1eb9aa1a30474f09b211ea4c1db
author Jaroslaw Grabowski <jaroslaw.grabowski@datastax.com> 1590497107 +0200
committer Brandon Williams <brandonwilliams@apache.org> 1621365930 -0500

add bloom filter false ratio tests

Patch by Jaroslaw Grabowski, reviewed by brandonwilliams and paulo for
CASSANDRA-15834

Verifies if BloomFilterFalseRatio takes into account true negatives.
Without this fix, the following scenario (many reads for non-existing
rows) would yield BloomFilterFalseRatio=1.0. With the fix we assume
it should be less then the default bloom_filter_fp_chance.