Fix assertion failure in FastLocalBloomBitsBuilder #9585
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Summary:
As in
```
db_stress: table/block_based/filter_policy.cc:316:
rocksdb::{anonymous}::FastLocalBloomBitsBuilder::FastLocalBloomBitsBuilder(int,
std::atomic<long int>*,
std::shared_ptr<rocksdb::CacheReservationManager>, bool): Assertion
`millibits_per_key >= 1000' failed.
```
This assertion failure was actually happening with our RibbonFilterPolicy
which falls back to Bloom for some cases, often for flush, but was
missing new special logic to skip generating filter for 0 bits per key
case. Fixed by adding the logic in other builtin FilterPolicy
implementations.
Test Plan: Updated db_bloom_filter_test to do more integration testing
of the RibbonFilterPolicy ("auto Ribbon") class, incl regression test
this with SkipFilterOnEssentiallyZeroBpk
|
@pdillinger has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator. |
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Summary:
As in
This assertion failure was actually happening with our RibbonFilterPolicy
which falls back to Bloom for some cases, often for flush, but was
missing new special logic to skip generating filter for 0 bits per key
case. Fixed by adding the logic in other builtin FilterPolicy
implementations.
Test Plan: Updated db_bloom_filter_test to do more integration testing
of the RibbonFilterPolicy ("auto Ribbon") class, incl regression test
this with SkipFilterOnEssentiallyZeroBpk