Summary: The parts that are used to implement FilterPolicy / NewBloomFilterPolicy and not used other than for the block-based table should be consolidated under table/block_based/filter_policy*. I don't foresee sharing these APIs with e.g. the Plain Table because they don't expose hashes for reuse in indexing. This change is step 1 of 2: (a) mv table/full_filter_bits_builder.h to table/block_based/filter_policy_internal.h which I expect to expand soon to internally reveal more implementation details for testing. (b) consolidate eventual contents of table/block_based/filter_policy.cc in util/bloom.cc, which has the most elaborate revision history (see step 2 ...) Step 2 soon to follow: mv util/bloom.cc table/block_based/filter_policy.cc This gets its own PR so that git has the best chance of following the rename for blame purposes. Note that low-level shared implementation details of Bloom filters are in util/bloom_impl.h. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5963 Test Plan: make check Differential Revision: D18121199 Pulled By: pdillinger fbshipit-source-id: 8f21732c3d8909777e3240e4ac3123d73140326a
RocksDB: A Persistent Key-Value Store for Flash and RAM Storage
RocksDB is developed and maintained by Facebook Database Engineering Team. It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com) and Jeff Dean (jeff@google.com)
This code is a library that forms the core building block for a fast key-value server, especially suited for storing data on flash drives. It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF) and Space-Amplification-Factor (SAF). It has multi-threaded compactions, making it especially suitable for storing multiple terabytes of data in a single database.
Start with example usage here: https://github.com/facebook/rocksdb/tree/master/examples
See the github wiki for more explanation.
The public interface is in include/
. Callers should not include or
rely on the details of any other header files in this package. Those
internal APIs may be changed without warning.
Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/
License
RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.