f065e1c95d
Summary: Fixes blog author display issues on rocksdb.org/blog by: * Adding missing authors to authors.yml: pdillinger, alanpaxton, akankshamahajan15, anand1976, poojam23 * Standardizing on GitHub usernames: renamed sdong → siying * Fixing typo in 2016-02-25-rocksdb-ama.markdown: yhchiang → yhciang * A short note in CLAUDE.md Authors were not showing on the blog because they were referenced in post frontmatter but not defined in the _data/authors.yml lookup file. Pull Request resolved: https://github.com/facebook/rocksdb/pull/14342 Test Plan: push & see ;) Reviewed By: mszeszko-meta Differential Revision: D93523972 Pulled By: pdillinger fbshipit-source-id: 757c33e80f3c1d99ff4134a37321f40634d6e294
41 lines
1.3 KiB
Markdown
41 lines
1.3 KiB
Markdown
---
|
|
title: RocksDB 4.2 Release!
|
|
layout: post
|
|
author: siying
|
|
category: blog
|
|
redirect_from:
|
|
- /blog/3017/rocksdb-4-2-release/
|
|
---
|
|
|
|
New RocksDB release - 4.2!
|
|
|
|
|
|
**New Features**
|
|
|
|
1. Introduce CreateLoggerFromOptions(), this function create a Logger for provided DBOptions.
|
|
|
|
|
|
2. Add GetAggregatedIntProperty(), which returns the sum of the GetIntProperty of all the column families.
|
|
|
|
|
|
3. Add MemoryUtil in rocksdb/utilities/memory.h. It currently offers a way to get the memory usage by type from a list rocksdb instances.
|
|
|
|
|
|
<!--truncate-->
|
|
|
|
|
|
**Public API changes**
|
|
|
|
1. CompactionFilter::Context includes information of Column Family ID
|
|
|
|
|
|
2. The need-compaction hint given by TablePropertiesCollector::NeedCompact() will be persistent and recoverable after DB recovery. This introduces a breaking format change. If you use this experimental feature, including NewCompactOnDeletionCollectorFactory() in the new version, you may not be able to directly downgrade the DB back to version 4.0 or lower.
|
|
|
|
|
|
3. TablePropertiesCollectorFactory::CreateTablePropertiesCollector() now takes an option Context, containing the information of column family ID for the file being written.
|
|
|
|
|
|
4. Remove DefaultCompactionFilterFactory.
|
|
|
|
|
|
[https://github.com/facebook/rocksdb/releases/tag/v4.2](https://github.com/facebook/rocksdb/releases/tag/v4.2)
|