andreacavalli/rocksdb
0
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
6d8cd7ede1
rocksdb/docs/_posts/2016-02-24-rocksdb-4-2-release.markdown
Joel Marcey 1ec75ee76b Add redirects from old blog posts link to new format 
Summary:
The new blog post links will be formatted differently coming over to gh-pages. But
we can redirect from the old style over to the new style for existing blog posts.

Test Plan:
Visual

https://www.facebook.com/pxlcld/pvWQ

Reviewers: lgalanis, sdong

Reviewed By: sdong

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D63513
2016-09-06 21:07:13 -07:00

1.3 KiB
Raw Blame History

title layout author category redirect_from
RocksDB 4.2 Release! post sdong blog
/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.

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