io.hfile.bloom.enabled
in
Configuration
serves as the kill switch in case
something goes wrong. Default = true
.
io.hfile.bloom.error.rate
= average false
positive rate. Default = 1%. Decrease rate by ½ (e.g. to .5%) == +1
bit per bloom entry.
io.hfile.bloom.max.fold
= guaranteed minimum
fold rate. Most people should leave this alone. Default = 7, or can
collapse to at least 1/128th of original size. See the
Development Process section of the document BloomFilters
in HBase for more on what this option means.