rocksdb/docs/_posts/2014-06-27-rocksdb-3-2-release.markdown

---
title: RocksDB 3.2 release
layout: post
author: leijin
category: blog
redirect_from:
  - /blog/647/rocksdb-3-2-release/
---

Check out new RocksDB release on [GitHub](https://github.com/facebook/rocksdb/releases/tag/rocksdb-3.2)!

New Features in RocksDB 3.2:


  * PlainTable now supports a new key encoding: for keys of the same prefix, the prefix is only written once. It can be enabled through encoding_type paramter of NewPlainTableFactory()


  * Add AdaptiveTableFactory, which is used to convert from a DB of PlainTable to BlockBasedTabe, or vise versa. It can be created using NewAdaptiveTableFactory()


Public API changes:


  * We removed seek compaction as a concept from RocksDB


  * Add two paramters to NewHashLinkListRepFactory() for logging on too many entries in a hash bucket when flushing


  * Added new option BlockBasedTableOptions::hash_index_allow_collision. When enabled, prefix hash index for block-based table will not store prefix and allow hash collision, reducing memory consumption
-												Migrate the RocksDB Worpdress blog over to Jekyll

Summary:
Tried to:

- preserve existing links
- move existing images over (there were 2)
- preserve codeblocks (modified where apprporiate)
- etc.

Also as agreed upon:

- All blog posts are preserved.
- Comments are not preserved.
- Not turning on comments for future blog posts (use the FB developer group instead).
- Like button at the end of the blog post.

Depends on https://reviews.facebook.net/D63051

Test Plan: Visual

Reviewers: IslamAbdelRahman, lgalanis

Reviewed By: lgalanis

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D63105

											
										
										
											2016-09-02 02:28:49 +02:00
+								---
 								title: RocksDB 3.2 release
 								layout: post
 								author: leijin
 								category: blog
-												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

											
										
										
											2016-09-07 06:07:13 +02:00
+								redirect_from:
 								  - /blog/647/rocksdb-3-2-release/
-												Migrate the RocksDB Worpdress blog over to Jekyll

Summary:
Tried to:

- preserve existing links
- move existing images over (there were 2)
- preserve codeblocks (modified where apprporiate)
- etc.

Also as agreed upon:

- All blog posts are preserved.
- Comments are not preserved.
- Not turning on comments for future blog posts (use the FB developer group instead).
- Like button at the end of the blog post.

Depends on https://reviews.facebook.net/D63051

Test Plan: Visual

Reviewers: IslamAbdelRahman, lgalanis

Reviewed By: lgalanis

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D63105

											
										
										
											2016-09-02 02:28:49 +02:00
+								---
 								Check out new RocksDB release on [GitHub](https://github.com/facebook/rocksdb/releases/tag/rocksdb-3.2)!
 								New Features in RocksDB 3.2:
 								  * PlainTable now supports a new key encoding: for keys of the same prefix, the prefix is only written once. It can be enabled through encoding_type paramter of NewPlainTableFactory()
 								  * Add AdaptiveTableFactory, which is used to convert from a DB of PlainTable to BlockBasedTabe, or vise versa. It can be created using NewAdaptiveTableFactory()
 								Public API changes:
 								  * We removed seek compaction as a concept from RocksDB
 								  * Add two paramters to NewHashLinkListRepFactory() for logging on too many entries in a hash bucket when flushing
 								  * Added new option BlockBasedTableOptions::hash_index_allow_collision. When enabled, prefix hash index for block-based table will not store prefix and allow hash collision, reducing memory consumption