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Yueh-Hsuan Chiang 4a8cbf4e31 Allows Get and MultiGet to read directly from SST files. 
Summary:
Add kSstFileTier to ReadTier, which allows Get and MultiGet to
read only directly from SST files and skip mem-tables.

    kSstFileTier = 0x2      // data in SST files.
                          // Note that this ReadTier currently only supports
                          // Get and MultiGet and does not support iterators.

Test Plan: add new test in db_test.

Reviewers: anthony, IslamAbdelRahman, rven, kradhakrishnan, sdong

Reviewed By: sdong

Subscribers: igor, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D53511
 		2016-02-09 11:20:22 -08:00
arcanist_util Add a mechanism to run all tests in sandcastle 2016-02-03 16:34:08 -08:00
build_tools Update fbcode_config4.8.1.sh to use update_dependencies.sh 2016-01-26 12:13:27 -08:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Allows Get and MultiGet to read directly from SST files. 2016-02-09 11:20:22 -08:00
doc Lint everything 2015-11-16 12:56:21 -08:00
examples Fix examples 2015-12-16 17:04:46 +01:00
hdfs update posix env schedule call 2015-12-30 10:12:44 -08:00
include/rocksdb Allows Get and MultiGet to read directly from SST files. 2016-02-09 11:20:22 -08:00
java Threaded tests for WriteBatch 2016-02-03 20:15:49 +00:00
memtable Explictly fail when memtable doesn't support concurrent insert 2016-02-05 14:15:50 -08:00
port Making use of GetSystemTimePreciseAsFileTime dynamic - code review fixes 2016-02-02 10:23:56 +01:00
table Allows Get and MultiGet to read directly from SST files. 2016-02-09 11:20:22 -08:00
third-party Enable MS compiler warning c4244. 2015-12-11 16:47:34 -08:00
tools crash_test: cover concurrent memtable insert in default crash test 2016-02-09 08:02:38 -08:00
util Add BlockBasedTableOptions::index_block_restart_interval 2016-02-05 10:22:37 -08:00
utilities Transaction::UndoGetForUpdate 2016-02-09 10:46:11 -08:00
.arcconfig Integrate Jenkins with Phabricator 2015-04-07 11:56:29 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore New amalgamation target 2015-10-01 08:29:31 +13:00
.travis.yml Travis CI to disable ROCKSDB_LITE tests 2016-02-01 18:42:01 -08:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt This partially addresses issue https://github.com/facebook/rocksdb/issues/935 2016-02-03 17:06:10 -08:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Allows Get and MultiGet to read directly from SST files. 2016-02-09 11:20:22 -08:00
INSTALL.md Simple changes to support builds for ppc64[le] consistent with X86 2016-01-19 09:08:19 -06:00
LICENSE Fix copyright year 2014-03-12 12:06:58 -07:00
Makefile Minor fix to makefile 2016-02-03 11:41:23 -08:00
PATENTS Update Patent Grant. 2015-04-13 10:33:43 +01:00
README.md Replaced "built on on earlier work" by "built on earlier work" in README.md 2014-09-17 01:16:17 -07:00
ROCKSDB_LITE.md Optimistic Transactions 2015-05-29 14:36:35 -07:00
USERS.md Add Wingify to USERS.md 2016-01-28 01:04:49 +05:30
Vagrantfile RocksDB on FreeBSD support 2015-02-26 15:19:17 -08:00
WINDOWS_PORT.md Commit both PR and internal code review changes 2015-07-07 16:58:20 -07:00
appveyor.yml Exclude DBTest.FileCreationRandomFailure as a long running test 2015-11-17 13:54:13 -08:00
src.mk Remove references to files deleted in commit abb4052278 2016-02-03 16:47:45 -08:00
thirdparty.inc Enable override to 3rd party linkage 2015-11-24 11:51:37 -08:00

README.md

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

Build Status

RocksDB is developed and maintained by Facebook Database Engineering Team. It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com) and Jeff Dean (jeff@google.com)

This code is a library that forms the core building block for a fast key value server, especially suited for storing data on flash drives. It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF) and Space-Amplification-Factor (SAF). It has multi-threaded compactions, making it specially suitable for storing multiple terabytes of data in a single database.

Start with example usage here: https://github.com/facebook/rocksdb/tree/master/examples

See the github wiki for more explanation.

The public interface is in include/. Callers should not include or rely on the details of any other header files in this package. Those internal APIs may be changed without warning.

Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/