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Akanksha Mahajan 2acbf386a3 Provide support for direct_reads with async_io (#10197)
Summary:
Provide support for use_direct_reads with async_io.

TestPlan:
-  Updated unit tests
-  db_bench: Results in https://github.com/facebook/rocksdb/pull/10197#issuecomment-1159239420
- db_stress
```
export CRASH_TEST_EXT_ARGS=" --async_io=1 --use_direct_reads=1"
make crash_test -j
```
- Ran db_bench on previous RocksDB version before any async_io implementation (as there have many changes in different PRs in this area) https://github.com/facebook/rocksdb/pull/10197#issuecomment-1160781563.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10197

Reviewed By: anand1976

Differential Revision: D37255646

Pulled By: akankshamahajan15

fbshipit-source-id: fec61ae15bf4d625f79dea56e4f86e0e307ba920
2022-07-06 11:42:59 -07:00
.circleci Adapt benchmark result script to new fields. (#10120) 2022-06-22 09:26:13 -07:00
.github/workflows Use released clang-format instead of the one from dev branch (#9646) 2022-03-01 10:51:38 -08:00
buckifier Use optimized folly DistributedMutex in LRUCache when available (#10179) 2022-06-17 13:08:45 -07:00
build_tools Adapt benchmark result script to new fields. (#10120) 2022-06-22 09:26:13 -07:00
cache Fix CalcHashBits (#10295) 2022-07-01 20:51:20 -07:00
cmake gcc-11 and cmake related cleanup (#9286) 2021-12-17 17:04:35 -08:00
coverage Fix commit_prereq and other targets (#9797) 2022-04-04 09:58:18 -07:00
db Handoff checksum during WAL replay (#10212) 2022-07-05 15:44:35 -07:00
db_stress_tool Expand stress test coverage for user-defined timestamp (#10280) 2022-07-05 13:30:15 -07:00
docs Bump nokogiri from 1.13.4 to 1.13.6 in /docs (#10019) 2022-05-20 11:00:15 -07:00
env Provide support for direct_reads with async_io (#10197) 2022-07-06 11:42:59 -07:00
examples Add a simple example of backup and restore (#10054) 2022-06-03 23:25:31 -07:00
file Provide support for direct_reads with async_io (#10197) 2022-07-06 11:42:59 -07:00
fuzz Fix compilation errors and add fuzzers to CircleCI (#9420) 2022-02-01 10:32:15 -08:00
include/rocksdb Add load_latest_options() to C api (#10152) 2022-06-30 11:03:52 -07:00
java Clock cache (#10273) 2022-06-29 21:50:39 -07:00
logging Fix bug in Logger creation if dbname and db_log_dir are on different filesystem (#10292) 2022-06-30 19:04:25 -07:00
memory Fail DB::Open() if logger cannot be created (#9984) 2022-05-27 07:23:31 -07:00
memtable Rewrite memory-charging feature's option API (#9926) 2022-05-17 15:01:51 -07:00
microbench Fix overflow in ribbon_bench after #10184 (#10195) 2022-06-17 12:53:57 -07:00
monitoring Add blob cache tickers, perf context statistics, and DB properties (#10203) 2022-06-28 13:52:35 -07:00
options Dynamically changeable MemPurge option (#10011) 2022-06-23 09:42:18 -07:00
plugin Add initial CMake support to plugin (#9214) 2021-11-30 17:16:53 -08:00
port Fix GetWindowsErrSz nullptr bug (#10282) 2022-06-29 20:41:54 -07:00
table Provide support for direct_reads with async_io (#10197) 2022-07-06 11:42:59 -07:00
test_util Fix a bug of not setting enforce_single_del_contracts (#10027) 2022-05-20 16:48:50 -07:00
third-party Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
tools Set the value for --version, add --build_info (#10275) 2022-07-06 09:58:45 -07:00
trace_replay Use std::numeric_limits<> (#9954) 2022-05-05 13:08:21 -07:00
util Provide support for direct_reads with async_io (#10197) 2022-07-06 11:42:59 -07:00
utilities BackupEngine: we can return immediately if GetFileSize failed (#10176) 2022-07-03 23:16:09 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Snapshots with user-specified timestamps (#9879) 2022-06-10 16:07:03 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Fix remaining uses of "backupable" (#9792) 2022-04-05 09:52:33 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Add API for writing wide-column entities (#10242) 2022-06-25 15:30:47 -07:00
CODE_OF_CONDUCT.md Adopt Contributor Covenant 2019-08-29 23:21:01 -07:00
common.mk Clean up variables for temporary directory (#9961) 2022-05-06 16:38:06 -07:00
CONTRIBUTING.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
COPYING Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
crash_test.mk Clean up variables for temporary directory (#9961) 2022-05-06 16:38:06 -07:00
DEFAULT_OPTIONS_HISTORY.md Add Options::DisableExtraChecks, clarify force_consistency_checks (#9363) 2022-01-18 17:31:03 -08:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Provide support for direct_reads with async_io (#10197) 2022-07-06 11:42:59 -07:00
INSTALL.md Update supported VS versions in INSTALL.md (#9823) 2022-04-13 13:03:40 -07:00
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
LANGUAGE-BINDINGS.md Update branch name to "main" in README/LANGUAGE_BINDINGS (#8727) 2021-09-01 15:26:34 -07:00
LICENSE.Apache Change RocksDB License 2017-07-15 16:11:23 -07:00
LICENSE.leveldb Add back the LevelDB license file 2017-07-16 18:42:18 -07:00
Makefile Add API for writing wide-column entities (#10242) 2022-06-25 15:30:47 -07:00
PLUGINS.md Add pmem-rocksdb-plugin link in PLUGINs.md (#9934) 2022-05-12 22:02:28 -07:00
README.md README: De-list slack channel, list Google group (#9387) 2022-01-18 08:19:48 -08:00
rocksdb.pc.in build: fix pkg-config file generation (#9953) 2022-05-30 12:46:40 -07:00
ROCKSDB_LITE.md Fix remaining uses of "backupable" (#9792) 2022-04-05 09:52:33 -07:00
src.mk Add API for writing wide-column entities (#10242) 2022-06-25 15:30:47 -07:00
TARGETS Add API for writing wide-column entities (#10242) 2022-06-25 15:30:47 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add Solana's RocksDB use case in USERS.md (#9558) 2022-02-16 09:23:01 -08:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md Update branch name in WINDOWS_PORT.md (#8745) 2021-09-01 19:26:39 -07:00

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

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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 especially suitable for storing multiple terabytes of data in a single database.

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

Questions and discussions are welcome on the RocksDB Developers Public Facebook group and email list on Google Groups.

License

RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.