release-v1.2.4

What's Changed

• Performance is multiplied by a factor of 10 depending on the data and tuning options.
• Memory usage decreased roughly by 75%
• SkipList is replaced by B+Tree in #6
• Added New WAL Mode = None in order to maximize insert speed for bulk operations.
• Starting with this version, it is possible with ZoneTree to insert 100 Million integer key-value pairs in 20 seconds using WAL mode None.
• Fixed several bugs.
• Added B+Tree lock mode option.

Full Changelog: release-v1.2.1...release-v1.2.4

release-v1.2.1

• Fixed maintainer that waits stopped threads.
• Increased compressed file stream length support up to 2^64 bytes.

Full Changelog: release-v1.2.0...release-v1.2.1

release-v1.2.0

• Added support up to 2^64 unique segment files.

Full Changelog: release-v1.1.9...release-v1.2.0

release-v1.1.9

• Fixed segment id collision issue.
• Reduced write amplification for random inserts by 100%.
• Improved performance.

Full Changelog: release-v1.1.7...release-v1.1.9

release-v1.1.7

• Fix multi segment incorrect key meta data issue.
• Reduced write amplification for sorted inserts by %97.
• Reduced write amplification for random inserts by %21.

Full Changelog: release-v1.1.6...release-v1.1.7

release-v1.1.6

• Added multiple disk segment support. (Disk Segment Mode)
• Improved merge speed.
• Stabilize the performance to be linear even after 100M+ record count.
• Improved durability by separating data files.
• Added parameters to adjust data separation by minimum - maximum size.
• Single Disk segment is still supported via configuration option.

Full Changelog: release-v1.1.5...release-v1.1.6

release-v1.1.5

• Fixed compressed file stream concurrency issue.
• Fixed a bug that make concurrent FileStream disposal possible.
• Fixed thread starvation issue by creating a thread per merge operation.
• Fixed an issue that appears on 50M insert.
• Optimize memory usage by adding block cache limit controller.
• Default WAL mode is changed to the fastest one, Lazy.

Full Changelog: release-v1.1.3...release-v1.1.5

release-v1.1.3

• Added an abstraction layer over File Stream and File operations.
• Added capability of integration with cloud-blob providers and in-memory streaming services.

Full Changelog: release-v1.1.2...release-v1.1.3

release-v1.1.2

• Fixed an important typo bug that prevents trees from loading. Many thanks to 👍 @KSemenenko 👍
• Added history record save on auto-commit.
• Improved benchmark tool.
• WAL Intermediate buffers are flushed to the disk. (improved crash recovery)
• Code cleanup.

Full Changelog: release-v1.1.1...release-v1.1.2

release-v1.1.1

• Fixed a typo bug that prevents incremental transaction log backup.

Full Changelog: release-v1.1.0...release-v1.1.1