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Yueh-Hsuan Chiang 6996de87af Expose per-level aggregated table properties via GetProperty()
Summary:
This patch adds "rocksdb.aggregated-table-properties"
and "rocksdb.aggregated-table-properties-at-levelN", the former
returns the aggreated table properties of a column family,
while the later returns the aggregated table properties
of the specified level N.

Test Plan: Added tests in db_test

Reviewers: igor, sdong, IslamAbdelRahman, anthony

Reviewed By: anthony

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D45087
2015-08-25 12:03:54 -07:00
arcanist_util Fix linters on non-fb machines 2015-08-11 11:36:12 -07:00
build_tools Upgrading jemalloc from 3.6.0 to the latest for fbcode+gcc 4.8.1 2015-08-04 16:35:26 -07:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Expose per-level aggregated table properties via GetProperty() 2015-08-25 12:03:54 -07:00
doc
examples Pessimistic Transactions 2015-08-11 17:52:23 -07:00
hdfs [Cleanup] Remove RandomRWFile 2015-08-12 10:18:59 -07:00
include/rocksdb Expose per-level aggregated table properties via GetProperty() 2015-08-25 12:03:54 -07:00
java Update JAVA-HISTORY.md for v3.13 2015-08-04 18:12:58 -07:00
port [Cleanup] Remove RandomRWFile 2015-08-12 10:18:59 -07:00
table Expose per-level aggregated table properties via GetProperty() 2015-08-25 12:03:54 -07:00
third-party "make format" against last 10 commits 2015-07-13 13:50:18 -07:00
tools Fix benchmark report script 2015-08-22 12:18:00 -07:00
util Changed 'num_subcompactions' to the more accurate 'max_subcompactions' 2015-08-21 14:25:34 -07:00
utilities Common base class for transactions 2015-08-24 19:09:43 -07:00
.arcconfig Integrate Jenkins with Phabricator 2015-04-07 11:56:29 -07:00
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.gitignore Windows Port from Microsoft 2015-07-01 16:13:56 -07:00
.travis.yml Another attempt at adding the Java API and tests to the travis build 2015-07-28 11:52:11 +01:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Fix Windows build 2015-08-25 11:02:31 -07:00
CONTRIBUTING.md
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Expose per-level aggregated table properties via GetProperty() 2015-08-25 12:03:54 -07:00
INSTALL.md Commit both PR and internal code review changes 2015-07-07 16:58:20 -07:00
LICENSE
Makefile Add a 'tools' target. 2015-08-13 10:19:53 -07:00
PATENTS Update Patent Grant. 2015-04-13 10:33:43 +01:00
README.md
ROCKSDB_LITE.md Optimistic Transactions 2015-05-29 14:36:35 -07:00
USERS.md Add Yahoo's blog post about Sherpa to USERS.md 2015-06-09 12:55:58 -07:00
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 Add auto-build manifest for appveyor 2015-08-07 15:37:46 -07:00
src.mk Common base class for transactions 2015-08-24 19:09:43 -07:00
thirdparty.inc Conditional use of third-party libraries 2015-07-09 14:42:41 -07:00

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/