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Akanksha Mahajan f6c4d7a576 Fix hang in MultiRead with O_DIRECT and io_uring (#10368)
Summary:
Fix bug in O_DIRECT and io_uring when its EOF and bytes_read =
0 because of wrong check, it got added into incomplete list and gets stuck in an infinite loop as it will always return bytes_read = 0. The bug was introduced by PR https://github.com/facebook/rocksdb/pull/10197 and that PR is not released yet in any release branch.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10368

Test Plan: Added new unit test

Reviewed By: siying

Differential Revision: D37885184

Pulled By: akankshamahajan15

fbshipit-source-id: 35b36a44b696d29b2f6f25301aa1b19547b4e03b
2022-07-18 15:37:29 -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 Support using secondary cache with the blob cache (#10349) 2022-07-16 03:54:37 -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 Make RateLimiter not Customizable (#10378) 2022-07-18 14:48:42 -07:00
db_stress_tool Support prepopulating/warming the blob cache (#10298) 2022-07-17 07:13:59 -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 Fix hang in MultiRead with O_DIRECT and io_uring (#10368) 2022-07-18 15:37:29 -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 Make RateLimiter not Customizable (#10378) 2022-07-18 14:48:42 -07:00
java Support prepopulating/warming the blob cache (#10298) 2022-07-17 07:13:59 -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 seqno to time mapping (#10338) 2022-07-14 21:49:34 -07:00
options Make RateLimiter not Customizable (#10378) 2022-07-18 14:48:42 -07:00
plugin Add initial CMake support to plugin (#9214) 2021-11-30 17:16:53 -08:00
port Support reservation in thread pool (#10278) 2022-07-08 19:48:09 -07:00
table Add seqno to time mapping (#10338) 2022-07-14 21:49:34 -07:00
test_util Add seqno to time mapping (#10338) 2022-07-14 21:49:34 -07:00
third-party Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
tools Post 7.5 branch cut changes (#10376) 2022-07-18 12:58:04 -07:00
trace_replay Use std::numeric_limits<> (#9954) 2022-05-05 13:08:21 -07:00
util Make RateLimiter not Customizable (#10378) 2022-07-18 14:48:42 -07:00
utilities Make RateLimiter not Customizable (#10378) 2022-07-18 14:48:42 -07:00
.clang-format
.gitignore Snapshots with user-specified timestamps (#9879) 2022-06-10 16:07:03 -07:00
.lgtm.yml
.travis.yml Fix remaining uses of "backupable" (#9792) 2022-04-05 09:52:33 -07:00
.watchmanconfig
AUTHORS
CMakeLists.txt Add seqno to time mapping (#10338) 2022-07-14 21:49:34 -07:00
CODE_OF_CONDUCT.md
common.mk Clean up variables for temporary directory (#9961) 2022-05-06 16:38:06 -07:00
CONTRIBUTING.md
COPYING
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
HISTORY.md Make RateLimiter not Customizable (#10378) 2022-07-18 14:48:42 -07:00
INSTALL.md Update supported VS versions in INSTALL.md (#9823) 2022-04-13 13:03:40 -07:00
issue_template.md
LANGUAGE-BINDINGS.md
LICENSE.Apache
LICENSE.leveldb
Makefile Add seqno to time mapping (#10338) 2022-07-14 21:49:34 -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 seqno to time mapping (#10338) 2022-07-14 21:49:34 -07:00
TARGETS Add seqno to time mapping (#10338) 2022-07-14 21:49:34 -07:00
thirdparty.inc
USERS.md Add Solana's RocksDB use case in USERS.md (#9558) 2022-02-16 09:23:01 -08:00
Vagrantfile
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.