d957e1a33a
Summary: This is a follow up to https://github.com/facebook/rocksdb/issues/13189. As mentioned in the description in the previous PR, to guard against similar bugs in the future, we should update our test implementations to reflect the real-world assumptions that we can make about `fs_scratch` when we issue reads with the filesystem buffer reuse optimization. The current test implementations reinforce the misconception that `fs_scratch` points to the same place as `result.data()` (i.e. to the start of the valid data buffer for the read result). `fs_scratch` can point to any arbitrary data structure, but for our purposes, I think we achieve what we want if we just have it point to a `Slice` which wraps the underlying result buffer inside one of its class variables. Pull Request resolved: https://github.com/facebook/rocksdb/pull/13195 Test Plan: Existing unit tests test the same functionality but in an improved way with this change. Reviewed By: hx235 Differential Revision: D66896380 Pulled By: archang19 fbshipit-source-id: 377e67ec70427716f2b7b7388d99b78003c01eb0
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/main/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.
Questions and discussions are welcome on the RocksDB Developers Public Facebook group and email list on Google Groups.
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.