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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

v0.2.0

Breaking Changes

  • LogManager::checkpoint_to now has an additional parameter, wal: &WriteAheadLog. This is provided for convenience because it may be necessary to randomly access information in the WAL while performing a checkpointing operation.

Added

  • LogPosition::serialize_to/LogPosition::deserialize_from provide methods for reading and writing a LogPosition from an arbitrary Write/Read implementor (respectively). This uses a fixed-length serialization with a length of LogPosition::SERIALIZED_LENGTH -- 16 bytes.

Changed

  • WriteAheadLog::shutdown() now no longer requires all instances of WriteAheadLog to be dropped to succeed.

Fixed

  • When the WAL recycles a segment file, the LogPosition returned is now correct. Previously, returned LogPositions would contain the segment file's old id, causing those positions to be unreadable.
  • When reading from a LogPosition, if the data has not been flushed or synchronized to disk yet, the read will be blocked until the sync operation finishes.

v0.1.0

  • Initial public preview release. No stability guarantees are being made at this stage. Feedback is welcome.