0.3.0

What's Changed

Bug Fixes

• Unconditionally tolerate fallocate failures as a fix to its portability issue. Errors other than EOPNOTSUPP will still emit a warning. (#225)
• Avoid leaving fractured write after failure by reseeking the file writer. Panic if the reseek fails as well. (#200)
• Fix a parallel recovery panic bug. (#251)
• Fix panic when an empty batch is written to engine and then reused. (#267)

New Features

• Add PerfContext which records detailed time breakdown of the write process to thread-local storage. (#227)
• Support recycling obsolete log files to reduce the cost of fallocate-ing new ones. (#224)

Public API Changes

• Add is_empty to Engine API. (#228)
• Add metadata deletion capability to FileSystem trait. Users can implement exists_metadata and delete_metadata to clean up obsolete metadata from older versions of Raft Engine. (#229)
• Add Engine::scan_messages and Engine::scan_raw_messages for iterating over written key-values. (#234)
• Add Engine::get for getting raw value. (#259)
• Move sync from env::WriteExt to env::Handle. (#269)
• Deprecate bytes_per_sync. (#269)

Behavior Changes

• Change format version to 2 from 1 by default. (#265)
• Enable log recycling by default. (#265)

New Contributors

• @Uchiha007 made their first contribution in #222
• @guoxiangCN made their first contribution in #242

Full Changelog: 0.2.0...0.3.0