rocksdb/docs/_posts/2014-09-15-rocksdb-3-5-release.markdown

---
title: RocksDB 3.5 Release!
layout: post
author: leijin
category: blog
redirect_from:
  - /blog/1547/rocksdb-3-5-release/
---

New RocksDB release - 3.5!


**New Features**


  1. Add include/utilities/write_batch_with_index.h, providing a utility class to query data out of WriteBatch when building it.


  2. new ReadOptions.total_order_seek to force total order seek when block-based table is built with hash index.

<!--truncate-->

**Public API changes**


  1. The Prefix Extractor used with V2 compaction filters is now passed user key to SliceTransform::Transform instead of unparsed RocksDB key.


  2. Move BlockBasedTable related options to BlockBasedTableOptions from Options. Change corresponding JNI interface. Options affected include: no_block_cache, block_cache, block_cache_compressed, block_size, block_size_deviation, block_restart_interval, filter_policy, whole_key_filtering. filter_policy is changed to shared_ptr from a raw pointer.


  3. Remove deprecated options: disable_seek_compaction and db_stats_log_interval


  4. OptimizeForPointLookup() takes one parameter for block cache size. It now builds hash index, bloom filter, and block cache.


[https://github.com/facebook/rocksdb/releases/tag/v3.5](https://github.com/facebook/rocksdb/releases/tag/rocksdb-3.5)
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 00:28:49 +00:00			`---`
			`title: RocksDB 3.5 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 04:07:13 +00:00			`redirect_from:`
			`- /blog/1547/rocksdb-3-5-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 00:28:49 +00:00			`---`

			`New RocksDB release - 3.5!`


			`New Features`


			`1. Add include/utilities/write_batch_with_index.h, providing a utility class to query data out of WriteBatch when building it.`


			`2. new ReadOptions.total_order_seek to force total order seek when block-based table is built with hash index.`

Truncate posts on the main /blog/ page 2016-10-04 21:20:26 +00:00			`<!--truncate-->`
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 00:28:49 +00:00
			`Public API changes`


			`1. The Prefix Extractor used with V2 compaction filters is now passed user key to SliceTransform::Transform instead of unparsed RocksDB key.`


			`2. Move BlockBasedTable related options to BlockBasedTableOptions from Options. Change corresponding JNI interface. Options affected include: no_block_cache, block_cache, block_cache_compressed, block_size, block_size_deviation, block_restart_interval, filter_policy, whole_key_filtering. filter_policy is changed to shared_ptr from a raw pointer.`


			`3. Remove deprecated options: disable_seek_compaction and db_stats_log_interval`


			`4. OptimizeForPointLookup() takes one parameter for block cache size. It now builds hash index, bloom filter, and block cache.`


			`[https://github.com/facebook/rocksdb/releases/tag/v3.5](https://github.com/facebook/rocksdb/releases/tag/rocksdb-3.5)`