cf9d8e45c0
Summary: https://github.com/facebook/rocksdb/issues/7556 enables `CompactionIterator` to perform garbage collection during compaction according to a lower bound (user-defined) timestamp `full_history_ts_low_`. This PR adds a data member `full_history_ts_low_` of type `std::string` to `CompactionJob`, and `full_history_ts_low_` does not change during compaction. `CompactionJob` will pass a pointer to this data member to the `CompactionIterator` used during compaction. Also refactored compaction_job_test.cc to re-use some existing code, which is actually the majority of this PR. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7657 Test Plan: make check Reviewed By: ltamasi Differential Revision: D24913803 Pulled By: riversand963 fbshipit-source-id: 11ad5329ddac365667152e7b3b02f84182c0ca8e
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/ and https://rocksdb.slack.com/
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.