Update HISTORY.md for 3.10.0

Summary: Update HISTORY.md for 3.10.0

Test Plan: no code chagne.

Reviewers: sdong, rven, igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D35871

HISTORY.md

@@ -1,6 +1,11 @@
 # Rocksdb Change Log
 
-### Unreleased Features
+## 3.10.0 (3/24/2015)
+* GetThreadStatus() is now able to report detailed thread status, including:
+ - Thread Operation including flush and compaction.
+ - The stage of the current thread operation.
+ - The elapsed time in micros since the current thread operation started.
+ More information can be found in include/rocksdb/thread_status.h.  In addition, when running db_bench with --thread_status_per_interval, db_bench will also report thread status periodically.
 * Changed the LRU caching algorithm so that referenced blocks (by iterators) are never evicted. This change made parameter removeScanCountLimit obsolete. Because of that NewLRUCache doesn't take three arguments anymore. table_cache_remove_scan_limit option is also removed
 * By default we now optimize the compilation for the compilation platform (using -march=native). If you want to build portable binary, use 'PORTABLE=1' before the make command.
 * We now allow level-compaction to place files in different paths by
@@ -10,7 +15,6 @@
 * Potentially big performance improvements if you're using RocksDB with lots of column families (100-1000)
 * Added BlockBasedTableOptions.format_version option, which allows user to specify which version of block based table he wants. As a general guidline, newer versions have more features, but might not be readable by older versions of RocksDB.
 * Added new block based table format (version 2), which you can enable by setting BlockBasedTableOptions.format_version = 2. This format changes how we encode size information in compressed blocks and should help with memory allocations if you're using Zlib or BZip2 compressions.
-* GetThreadStatus() is now able to report compaction activity.
 * MemEnv (env that stores data in memory) is now available in default library build. You can create it by calling NewMemEnv().
 * Add SliceTransform.SameResultWhenAppended() to help users determine it is safe to apply prefix bloom/hash.
 * Block based table now makes use of prefix bloom filter if it is a full fulter.
@@ -21,10 +25,16 @@
 * Fixed a bug where we start deleting files of a dropped column families even if there are still live references to it
 
 ### Public API changes
-* Deprecated skip_log_error_on_recovery option
+* Deprecated skip_log_error_on_recovery and table_cache_remove_scan_count_limit options.
 * Logger method logv with log level parameter is now virtual
 
-### 3.9.0 (12/8/2014)
+### RocksJava
+* Added compression per level API.
+* MemEnv is now available in RocksJava via RocksMemEnv class.
+* lz4 compression is now included in rocksjava static library when running `make rocksdbjavastatic`.
+* Overflowing a size_t when setting rocksdb options now throws an IllegalArgumentException, which removes the necessity for a developer to catch these Exceptions explicitly.
+
+## 3.9.0 (12/8/2014)
 
 ### New Features
 * Add rocksdb::GetThreadList(), which in the future will return the current status of all

java/HISTORY-JAVA.md

@@ -1,5 +1,16 @@
 # RocksJava Change Log
 
+## 3.10.0 (3/24/2015)
+### New Features
+* Added compression per level API.
+* MemEnv is now available in RocksJava via RocksMemEnv class.
+* lz4 compression is now included in rocksjava static library when running `make rocksdbjavastatic`.
+
+### Public API Changes
+* Overflowing a size_t when setting rocksdb options now throws an IllegalArgumentException, which removes the necessity for a developer to catch these Exceptions explicitly.
+* The set and get functions for tableCacheRemoveScanCountLimit are deprecated.
+
+
 ## By 01/31/2015
 ### New Features
 * WriteBatchWithIndex support.