f8e90e8753
Summary: For VerifyBackup(), backup files can be spread across "shared/", "shared_checksum/", and "private/" subdirectories, so we have to bulk get all three. For CreateNewBackup(), we make two separate bulk calls: one for the data files and one for WAL files. There is also a new helper function, ExtendPathnameToSizeBytes(), that translates the file attributes vector to a map. I decided to leave GetChildrenFileAttributes()'s (from D53781) return type as vector to keep it consistent with GetChildren(). Depends on D53781. Test Plan: verified relevant unit tests $ ./backupable_db_test Reviewers: IslamAbdelRahman, sdong Reviewed By: sdong Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D53919
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 specially 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/