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Maysam Yabandeh 35e5689e11 Take snapshots once for all cf flushes (#4934)
Summary:
FlushMemTablesToOutputFiles calls FlushMemTableToOutputFile for each column family. The patch moves the take-snapshot logic to outside FlushMemTableToOutputFile so that it does it once for all the flushes. This also addresses a deadlock issue for resetting the managed snapshot of job_snapshot in the 2nd call to FlushMemTableToOutputFile.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4934

Differential Revision: D13900747

Pulled By: maysamyabandeh

fbshipit-source-id: f3cd650c5fff24cf95c1aaf8a10c149d42bf042c
2019-01-31 12:21:59 -08:00
buckifier Fix skylark incompatible build files in rocksdb 2019-01-07 13:37:40 -08:00
build_tools Add latest toolchain (gcc-8, etc.) build support for fbcode users (#4923) 2019-01-28 11:26:32 -08:00
cache Revert "Move MemoryAllocator option from Cache to BlockBasedTableOpti… (#4697) 2018-11-21 11:29:57 -08:00
cmake Make FindZLIB consistent with official definitions (#4823) 2019-01-02 12:49:57 -08:00
coverage Remove unused imports, from python scripts. (#4057) 2018-06-26 12:43:04 -07:00
db Take snapshots once for all cf flushes (#4934) 2019-01-31 12:21:59 -08:00
docs Insane line length detected (#4813) 2018-12-21 14:54:34 -08:00
env Add a new CPU time counter to compaction report (#4889) 2019-01-29 17:24:00 -08:00
examples Pin top-level index on partitioned index/filter blocks (#4037) 2018-06-22 15:27:46 -07:00
hdfs Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
include/rocksdb Add a new CPU time counter to compaction report (#4889) 2019-01-29 17:24:00 -08:00
java Remove PlainTable's feature store_index_in_file (#4914) 2019-01-28 12:50:22 -08:00
memtable WriteBufferManger doens't cost to cache if no limit is set (#4695) 2018-11-18 16:55:43 -08:00
monitoring Add a new CPU time counter to compaction report (#4889) 2019-01-29 17:24:00 -08:00
options Remove PlainTable's feature store_index_in_file (#4914) 2019-01-28 12:50:22 -08:00
port Detect if Jemalloc is linked with the binary (#4844) 2019-01-03 16:30:12 -08:00
table Add a new CPU time counter to compaction report (#4889) 2019-01-29 17:24:00 -08:00
third-party Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
tools Add a new CPU time counter to compaction report (#4889) 2019-01-29 17:24:00 -08:00
util Add a new CPU time counter to compaction report (#4889) 2019-01-29 17:24:00 -08:00
utilities Add a new CPU time counter to compaction report (#4889) 2019-01-29 17:24:00 -08:00
.clang-format
.gitignore RocksDB Trace Analyzer (#4091) 2018-08-13 11:44:02 -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 printf formatting on MacOS (#4533) 2018-10-19 14:46:09 -07:00
appveyor.yml Add RocksJava build to AppVeyor 2019-01-03 10:44:44 -08:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Remove some components (#4101) 2019-01-10 13:30:09 -08:00
CODE_OF_CONDUCT.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
CONTRIBUTING.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
COPYING
DEFAULT_OPTIONS_HISTORY.md options.delayed_write_rate use the rate of rate_limiter by default. 2017-05-24 09:58:24 -07:00
DUMP_FORMAT.md
HISTORY.md Verify checksum before ingestion (#4916) 2019-01-29 17:17:29 -08:00
INSTALL.md Update the version of the dependencies used by the RocksJava static build (#4761) 2018-12-18 20:25:43 -08:00
issue_template.md Add a template for issues 2017-09-29 11:41:28 -07:00
LANGUAGE-BINDINGS.md Added PingCaps Rust RocksDB and ObjectiveRocks (#4065) 2018-06-27 15:43:21 -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 Change the command to invoke parallel tests (#4922) 2019-01-28 15:02:26 -08:00
README.md Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Remove some components (#4101) 2019-01-10 13:30:09 -08:00
TARGETS Cache dictionary used for decompressing data blocks (#4881) 2019-01-23 18:15:47 -08:00
thirdparty.inc Provide a way to override windows memory allocator with jemalloc for ZSTD 2018-06-04 12:12:48 -07:00
USERS.md Adding IOTA Foundation to USERS.MD (#4436) 2018-10-02 10:03:46 -07:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md Add GCC 8 to Travis (#3433) 2018-07-13 10:58:06 -07:00

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

Linux/Mac Build Status Windows Build status PPC64le 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/

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.